diff --git a/package.json b/package.json index 3a326898..e2b779a1 100644 --- a/package.json +++ b/package.json @@ -9,7 +9,9 @@ "start": "node speech.js", "lint": "eslint .", "fix": "eslint . --fix", - "precommit": "eslint ." + "precommit": "eslint .", + "babel": "babel", + "webpack": "webpack" }, "repository": { "type": "git", @@ -41,16 +43,27 @@ "nodemon": "^1.11.0", "passport": "^0.4.0", "passport-local": "^1.0.0", + "prop-types": "^15.6.0", + "react": "^16.2.0", + "react-dom": "^16.2.0", + "react-redux": "^5.0.6", + "redux": "^3.7.2", "request": "^2.83.0", "request-promise": "^4.2.2", "sequelize": "^4.1.0", "sequelize-cli": "^3.0.0-3", "sleep": "^5.1.1", "universal-analytics": "^0.4.13", + "whatwg-fetch": "^2.0.3", "winston": "^2.3.1", "winston-slack-webhook": "billbitt/winston-slack-webhook" }, "devDependencies": { + "babel-core": "^6.26.0", + "babel-loader": "^7.1.2", + "babel-preset-es2015": "^6.24.1", + "babel-preset-react": "^6.24.1", + "babel-preset-stage-2": "^6.24.1", "chai": "^4.1.2", "chai-http": "^3.0.0", "eslint": "3.19.0", @@ -61,6 +74,8 @@ "eslint-plugin-react": "6.10.3", "eslint-plugin-standard": "3.0.1", "husky": "^0.13.4", - "mocha": "^4.0.1" + "mocha": "^4.0.1", + "redux-devtools": "^3.4.1", + "webpack": "^3.10.0" } } diff --git a/passport/local-login.js b/passport/local-login.js index e3d72e88..7263b455 100644 --- a/passport/local-login.js +++ b/passport/local-login.js @@ -37,7 +37,7 @@ module.exports = new PassportLocalStrategy( .then(user => { if (!user) { // logger.debug('no user found'); - return done(null, false, {message: 'Incorrect username or password.'}); + return done(null, false, {message: 'Incorrect username or password'}); } user.comparePassword(password, (passwordErr, isMatch) => { if (passwordErr) { @@ -46,7 +46,7 @@ module.exports = new PassportLocalStrategy( } if (!isMatch) { // logger.debug('incorrect password'); - return done(null, false, {message: 'Incorrect username or password.'}); + return done(null, false, {message: 'Incorrect username or password'}); } logger.debug('Password was a match, returning User'); return returnUserAndChannelInfo(user) diff --git a/public/assets/css/general.css b/public/assets/css/general.css index 629a999c..1e6d5b86 100644 --- a/public/assets/css/general.css +++ b/public/assets/css/general.css @@ -483,32 +483,31 @@ table { cursor: pointer; } -#primary-dropzone-instructions, #dropbzone-dragover { - z-index: -1; -} - -.position-absolute { +#dropzone-text-holder { position: absolute; - top: 0px; - left: 0px; - height: 100%; + left: 0; + top: 0; width: 100%; + height: 100%; } -#asset-preview-holder { - position: relative; +#dropzone-dragover, #dropzone-instructions { + padding: 1em; } #asset-preview { display: block; - padding: 0.5rem; - width: calc(100% - 1rem); + width: 100%; +} + +.dim { + opacity: 0.2; } /* Assets */ .asset { - max-width: 100%; + width: 100%; } #show-body #asset-boilerpate { diff --git a/public/assets/img/loading.gif b/public/assets/img/loading.gif new file mode 100644 index 00000000..a9648d12 Binary files /dev/null and b/public/assets/img/loading.gif differ diff --git a/public/assets/js/authFunctions.js b/public/assets/js/authFunctions.js deleted file mode 100644 index fe06c1d0..00000000 --- a/public/assets/js/authFunctions.js +++ /dev/null @@ -1,4 +0,0 @@ -function sendAuthRequest (channelName, password, url) { - const params = `username=${channelName}&password=${password}`; - return postRequest(url, params); -} \ No newline at end of file diff --git a/public/assets/js/constants.js b/public/assets/js/constants.js deleted file mode 100644 index b37ed213..00000000 --- a/public/assets/js/constants.js +++ /dev/null @@ -1 +0,0 @@ -const EMAIL_FORMAT = 'ERROR_EMAIL_FORMAT'; diff --git a/public/assets/js/createChannelFunctions.js b/public/assets/js/createChannelFunctions.js index 75816deb..478cc2d8 100644 --- a/public/assets/js/createChannelFunctions.js +++ b/public/assets/js/createChannelFunctions.js @@ -2,13 +2,11 @@ function showChannelCreateInProgressDisplay () { const publishChannelForm = document.getElementById('publish-channel-form'); const inProgress = document.getElementById('channel-publish-in-progress'); - const channelProgressBar = document.getElementById('create-channel-progress-bar'); publishChannelForm.hidden = true; inProgress.hidden = false; - createProgressBar(channelProgressBar, 12); } -// display the content that shows channle creation is done +// display the content that shows channel creation is done function showChannelCreateDoneDisplay() { const inProgress = document.getElementById('channel-publish-in-progress'); inProgress.hidden=true; @@ -22,27 +20,38 @@ function showChannelCreationError(msg) { } function publishNewChannel (event) { - const userName = document.getElementById('new-channel-name').value; + const username = document.getElementById('new-channel-name').value; const password = document.getElementById('new-channel-password').value; // prevent default so this script can handle submission event.preventDefault(); // validate submission - validationFunctions.validateNewChannelSubmission(userName, password) + validationFunctions.validateNewChannelSubmission(username, password) .then(() => { showChannelCreateInProgressDisplay(); - return sendAuthRequest(userName, password, '/signup') // post the request + // return sendAuthRequest(userName, password, '/signup') // post the request + return fetch('/signup', { + method: 'POST', + body: JSON.stringify({username, password}), + headers: new Headers({ + 'Content-Type': 'application/json' + }), + credentials: 'include', + }) + .then(function(response) { + if (response.ok){ + return response.json(); + } else { + throw response; + } + }) + .catch(function(error) { + throw error; + }) }) - .then(result => { - setUserCookies(result.channelName, result.channelClaimId, result.shortChannelId); + .then(signupResult => { + console.log('signup success:', signupResult); showChannelCreateDoneDisplay(); - // if user is on the home page, update the needed elements without reloading - if (window.location.pathname === '/') { - replaceChannelOptionInPublishChannelSelect(result.channelName); - replaceChannelOptionInNavBarChannelSelect(result.channelName); - // if user is not on home page, redirect to home page - } else { - window.location = '/'; - } + window.location = '/'; }) .catch(error => { if (error.name === 'ChannelNameError' || error.name === 'ChannelPasswordError'){ @@ -50,7 +59,7 @@ function publishNewChannel (event) { validationFunctions.showError(channelNameErrorDisplayElement, error.message); } else { console.log('signup failure:', error); - showChannelCreationError('Unfortunately, we encountered an error while creating your channel. Please let us know in slack!'); + showChannelCreationError('Unfortunately, we encountered an error while creating your channel. Please let us know in slack!', error); } }) } diff --git a/public/assets/js/dropzoneFunctions.js b/public/assets/js/dropzoneFunctions.js deleted file mode 100644 index b0ab1abb..00000000 --- a/public/assets/js/dropzoneFunctions.js +++ /dev/null @@ -1,53 +0,0 @@ - -function drop_handler(event) { - event.preventDefault(); - // if dropped items aren't files, reject them - var dt = event.dataTransfer; - if (dt.items) { - if (dt.items[0].kind == 'file') { - var droppedFile = dt.items[0].getAsFile(); - publishFileFunctions.previewAndStageFile(droppedFile); - } - } -} - -function dragover_handler(event) { - event.preventDefault(); -} - -function dragend_handler(event) { - var dt = event.dataTransfer; - if (dt.items) { - for (var i = 0; i < dt.items.length; i++) { - dt.items.remove(i); - } - } else { - event.dataTransfer.clearData(); - } -} - -function dragenter_handler(event) { - var thisDropzone = document.getElementById(event.target.id); - thisDropzone.setAttribute('class', 'dropzone dropzone--drag-over row row--margined row--padded row--tall flex-container--column flex-container--center-center'); - thisDropzone.firstElementChild.setAttribute('class', 'hidden'); - thisDropzone.lastElementChild.setAttribute('class', ''); - -} - -function dragexit_handler(event) { - var thisDropzone = document.getElementById(event.target.id); - thisDropzone.setAttribute('class', 'dropzone row row--tall row--margined row--padded flex-container--column flex-container--center-center'); - thisDropzone.firstElementChild.setAttribute('class', ''); - thisDropzone.lastElementChild.setAttribute('class', 'hidden'); -} - -function preview_onmouseenter_handler () { - document.getElementById('asset-preview-dropzone-instructions').setAttribute('class', 'flex-container--column flex-container--center-center position-absolute'); - document.getElementById('asset-preview').style.opacity = 0.2; -} - -function preview_onmouseleave_handler () { - document.getElementById('asset-preview-dropzone-instructions').setAttribute('class', 'hidden'); - document.getElementById('asset-preview').style.opacity = 1; -} - diff --git a/public/assets/js/generalFunctions.js b/public/assets/js/generalFunctions.js index ec56009f..74497983 100644 --- a/public/assets/js/generalFunctions.js +++ b/public/assets/js/generalFunctions.js @@ -1,160 +1,3 @@ -function getRequest (url) { - return new Promise((resolve, reject) => { - let xhttp = new XMLHttpRequest(); - xhttp.open('GET', url, true); - xhttp.responseType = 'json'; - xhttp.onreadystatechange = () => { - if (xhttp.readyState == 4 ) { - if ( xhttp.status == 200) { - resolve(xhttp.response); - } else if (xhttp.status == 401) { - reject('Wrong channel name or password'); - } else { - reject('request failed with status:' + xhttp.status); - }; - } - }; - xhttp.send(); - }) -} - -function postRequest (url, params) { - return new Promise((resolve, reject) => { - let xhttp = new XMLHttpRequest(); - xhttp.open('POST', url, true); - xhttp.responseType = 'json'; - xhttp.setRequestHeader('Content-type', 'application/x-www-form-urlencoded'); - xhttp.onreadystatechange = () => { - if (xhttp.readyState == 4 ) { - if ( xhttp.status == 200) { - resolve(xhttp.response); - } else if (xhttp.status == 401) { - reject( new AuthenticationError('Wrong channel name or password')); - } else { - reject('request failed with status:' + xhttp.status); - }; - } - }; - xhttp.send(params); - }) -} - -function toggleSection(event){ - event.preventDefault(); - - var dataSet = event.target.dataset; - var status = dataSet.open; - var masterElement = document.getElementById(event.target.id||event.srcElement.id); - var slaveElement = document.getElementById(dataSet.slaveelementid); - var closedLabel = dataSet.closedlabel; - var openLabel = dataSet.openlabel; - - if (status === "false") { - slaveElement.hidden = false; - masterElement.innerText = openLabel; - masterElement.dataset.open = "true"; - } else { - slaveElement.hidden = true; - masterElement.innerText = closedLabel; - masterElement.dataset.open = "false"; - } -} - -function createProgressBar(element, size){ - var x = 0; - var adder = 1; - // create the bar holder & place it - var barHolder = document.createElement('p'); - for (var i = 0; i < size; i++) { - const bar = document.createElement('span'); - bar.innerText = '| '; - bar.setAttribute('class', 'progress-bar progress-bar--inactive'); - barHolder.appendChild(bar); - } - element.appendChild(barHolder); - // get the bars - const bars = document.getElementsByClassName('progress-bar'); - // function to update the bars' classes - function updateOneBar(){ - // update the appropriate bar - if (x > -1 && x < size){ - if (adder === 1){ - bars[x].setAttribute('class', 'progress-bar progress-bar--active'); - } else { - bars[x].setAttribute('class', 'progress-bar progress-bar--inactive'); - } - } - // set x - if (x === size){ - adder = -1; - } else if ( x === -1){ - adder = 1; - } - // update the adder - x += adder; - - }; - // start updater - setInterval(updateOneBar, 300); -} - -function setCookie(key, value) { - document.cookie = `${key}=${value}`; -} - -function getCookie(cname) { - const name = cname + "="; - const decodedCookie = decodeURIComponent(document.cookie); - const ca = decodedCookie.split(';'); - for(let i = 0; i { - return sendAuthRequest(userName, password, '/login') + return fetch('/login', { + method: 'POST', + body: JSON.stringify({username, password}), + headers: new Headers({ + 'Content-Type': 'application/json' + }), + credentials: 'include', + }) + .then(function(response) { + console.log(response); + if (response.ok){ + return response.json(); + } else { + throw response; + } + }) + .catch(function(error) { + throw error; + }) }) - .then(result => { - setUserCookies(result.channelName, result.channelClaimId, result.shortChannelId); - // if user is on the home page, update the needed elements without reloading - if (window.location.pathname === '/') { - replaceChannelOptionInPublishChannelSelect(result.channelName); - replaceChannelOptionInNavBarChannelSelect(result.channelName); - // if user is not on home page, redirect to home page - } else { + .then(function({success, message}) { + if (success) { window.location = '/'; + } else { + throw new Error(message); } }) .catch(error => { const loginErrorDisplayElement = document.getElementById('login-error-display-element'); - if (error.name){ + if (error.message){ validationFunctions.showError(loginErrorDisplayElement, error.message); } else { validationFunctions.showError(loginErrorDisplayElement, 'There was an error logging into your channel'); diff --git a/public/assets/js/navBarFunctions.js b/public/assets/js/navBarFunctions.js deleted file mode 100644 index 5df9cfc4..00000000 --- a/public/assets/js/navBarFunctions.js +++ /dev/null @@ -1,15 +0,0 @@ -function toggleNavBarSelection (value) { - const selectedOption = value; - if (selectedOption === 'LOGOUT') { - // remove session cookies - clearUserCookies(); - // send logout request to server - window.location.href = '/logout'; - } else if (selectedOption === 'VIEW') { - // get channel info - const channelName = getCookie('channel_name'); - const channelClaimId = getCookie('channel_claim_id'); - // redirect to channel page - window.location.href = `/${channelName}:${channelClaimId}`; - } -} \ No newline at end of file diff --git a/public/assets/js/publishFileFunctions.js b/public/assets/js/publishFileFunctions.js deleted file mode 100644 index 41922e08..00000000 --- a/public/assets/js/publishFileFunctions.js +++ /dev/null @@ -1,234 +0,0 @@ -var stagedFiles = null; - -const publishFileFunctions = { - triggerFileChooser: function (fileInputId) { - document.getElementById(fileInputId).click(); - }, - cancelPublish: function () { - window.location.href = '/'; - }, - previewAndStageFile: function (selectedFile) { - const fileSelectionInputError = document.getElementById('input-error-file-selection'); - // When a file is selected for publish, validate that file and - // stage it so it will be ready when the publish button is clicked - try { - validationFunctions.validateFile(selectedFile); // validate the file's name, type, and size - } catch (error) { - validationFunctions.showError(fileSelectionInputError, error.message); - return; - } - // set image preview, if an image was provided - this.setImagePreview(selectedFile); - // hide the primary drop zone - this.hidePrimaryDropzone(); - // set the name input value to the image name if none is set yet - this.updateClaimNameInputWithFileName(selectedFile); - // store the selected file for upload - stagedFiles = [selectedFile]; - }, - hidePrimaryDropzone: function () { - const primaryDropzone = document.getElementById('primary-dropzone'); - const publishForm = document.getElementById('publish-form'); - primaryDropzone.setAttribute('class', 'hidden'); - publishForm.setAttribute('class', 'row') - }, - updateClaimNameInputWithFileName: function (selectedFile) { - const nameInput = document.getElementById('claim-name-input'); - if (nameInput.value === "") { - var filename = selectedFile.name.substring(0, selectedFile.name.indexOf('.')) - nameInput.value = validationFunctions.cleanseClaimName(filename); - validationFunctions.checkClaimName(nameInput.value); - } - }, - setImagePreview: function (selectedFile) { - const assetPreview = document.getElementById('asset-preview-target'); - const thumbnailInput = document.getElementById('claim-thumbnail-input'); - const thumbnailInputTool = document.getElementById('publish-thumbnail'); - if (selectedFile.type !== 'video/mp4') { - const previewReader = new FileReader(); - if (selectedFile.type === 'image/gif') { - assetPreview.innerHTML = `

loading preview...

` - } - previewReader.readAsDataURL(selectedFile); - previewReader.onloadend = function () { - assetPreview.innerHTML = 'image preview'; - }; - // clear & hide the thumbnail selection input - thumbnailInput.value = ''; - thumbnailInputTool.hidden = true; - } else { - assetPreview.innerHTML = ``; - // clear & show the thumbnail selection input - thumbnailInput.value = ''; - thumbnailInputTool.hidden = false; - } - }, - returnNullOrChannel: function () { - const channelRadio = document.getElementById('channel-radio'); - if (channelRadio.checked) { - const channelInput = document.getElementById('channel-name-select'); - return channelInput.value.trim(); - } - return null; - }, - createMetadata: function() { - const nameInput = document.getElementById('claim-name-input'); - const titleInput = document.getElementById('publish-title'); - const descriptionInput = document.getElementById('publish-description'); - const licenseInput = document.getElementById('publish-license'); - const nsfwInput = document.getElementById('publish-nsfw'); - const thumbnailInput = document.getElementById('claim-thumbnail-input'); - const channelName = this.returnNullOrChannel(); - let metadata = { - name: nameInput.value.trim(), - title: titleInput.value.trim(), - description: descriptionInput.value.trim(), - license: licenseInput.value.trim(), - nsfw: nsfwInput.checked, - type: stagedFiles[0].type, - thumbnail: thumbnailInput.value.trim(), - }; - if (channelName) { - metadata['channelName'] = channelName; - } - return metadata; - }, - appendDataToFormData: function (file, metadata) { - var fd = new FormData(); - fd.append('file', file) - for (var key in metadata) { - if (metadata.hasOwnProperty(key)) { - console.log(key, metadata[key]); - fd.append(key, metadata[key]); - } - } - return fd; - }, - publishFile: function (file, metadata) { - var uri = "/api/claim-publish"; - var xhr = new XMLHttpRequest(); - var fd = this.appendDataToFormData(file, metadata); - var that = this; - xhr.upload.addEventListener("loadstart", function(e) { - that.showUploadStartedMessage(); - }) - xhr.upload.addEventListener("progress", function(e) { - if (e.lengthComputable) { - var percentage = Math.round((e.loaded * 100) / e.total); - console.log('progress:', percentage); - that.showUploadProgressMessage(percentage); - } - }, false); - xhr.upload.addEventListener("load", function(e){ - console.log('loaded 100%'); - that.showFilePublishUpdate("Your file has been loaded, and is now being published to the blockchain. Sit tight...") - }, false); - xhr.open("POST", uri, true); - xhr.onreadystatechange = function() { - if (xhr.readyState == 4) { - console.log('publish response:', xhr.response) - if (xhr.status == 200) { - console.log('publish complete!'); - that.showFilePublishComplete(JSON.parse(xhr.response).message); - } else if (xhr.status == 502){ - that.showFilePublishFailure('Spee.ch was not able to get a response from the LBRY network.'); - } else { - that.showFilePublishFailure(JSON.parse(xhr.response).message); - } - } - }; - // Initiate a multipart/form-data upload - xhr.send(fd); - }, - // Validate the publish submission and then trigger upload - publishStagedFile: function (event) { - event.preventDefault(); // prevent default so this script can handle submission - const metadata = this.createMetadata(); - const that = this; - const fileSelectionInputError = document.getElementById('input-error-file-selection'); - const claimNameError = document.getElementById('input-error-claim-name'); - const channelSelectError = document.getElementById('input-error-channel-select'); - const publishSubmitError = document.getElementById('input-error-publish-submit'); - // validate, submit, and handle response - validationFunctions.validateFilePublishSubmission(stagedFiles, metadata) - .then( function() { - that.publishFile(stagedFiles[0], metadata); - }) - .catch(error => { - if (error.name === 'FileError') { - validationFunctions.showError(fileSelectionInputError, error.message); - } else if (error.name === 'NameError') { - validationFunctions.showError(claimNameError, error.message); - } else if (error.name === 'ChannelNameError'){ - console.log(error); - validationFunctions.showError(channelSelectError, error.message); - } else { - validationFunctions.showError(publishSubmitError, error.message); - } - return; - }) - }, - showUploadStartedMessage: function (){ - console.log('starting upload'); - // hide the publish tool - this.hidePublishTools(); - // show the progress status and animation - this.showPublishStatus(); - this.showPublishProgressBar(); - }, - showUploadProgressMessage: function (percentage){ - this.updatePublishStatus('

File is loading to server

'); - this.updateUploadPercent('

' + percentage + '%

'); - }, - showFilePublishUpdate: function (msg) { - this.updatePublishStatus('

' + msg + '

'); - this.updateUploadPercent('

Curious what magic is happening here? Learn more.

'); - }, - showFilePublishFailure: function (msg){ - this.updatePublishStatus('

Something went wrong...

' + msg + '

For help, post the above error text in the #speech channel on the lbry discord'); - this.hidePublishProgressBar(); - this.hideUploadPercent(); - }, - showFilePublishComplete: function (msg) { - console.log('Publish complete!'); - const showUrl = msg.lbryTx.claim_id + "/" + msg.name; - // update status - this.updatePublishStatus('

Your publish is complete! You are being redirected to it now.

'); - this.updateUploadPercent('

If you do not get redirected, click here.

') - // redirect the user - window.location.href = showUrl; - }, - hidePublishTools: function () { - const publishFormWrapper = document.getElementById('publish-form'); - publishFormWrapper.setAttribute('class', 'hidden'); - }, - // publish status functions - showPublishStatus: function () { - const publishStatus = document.getElementById('publish-status'); - publishStatus.setAttribute('class', 'row row--tall flex-container--column flex-container--center-center'); - }, - updatePublishStatus: function (msg){ - const publishUpdate = document.getElementById('publish-update'); - publishUpdate.innerHTML = msg; - }, - // progress bar functions - showPublishProgressBar: function (){ - const publishProgressBar = document.getElementById('publish-progress-bar'); - createProgressBar(publishProgressBar, 12); - }, - hidePublishProgressBar: function (){ - const publishProgressBar = document.getElementById('publish-progress-bar'); - publishProgressBar.hidden = true; - }, - // upload percent functions - updateUploadPercent: function (msg){ - const uploadPercent = document.getElementById('upload-percent'); - uploadPercent.innerHTML = msg; - }, - hideUploadPercent: function (){ - const uploadPercent = document.getElementById('upload-percent'); - uploadPercent.hidden = true; - }, -} - - diff --git a/public/assets/js/validationFunctions.js b/public/assets/js/validationFunctions.js index 85d97868..07c9bad3 100644 --- a/public/assets/js/validationFunctions.js +++ b/public/assets/js/validationFunctions.js @@ -1,53 +1,5 @@ // validation function which checks the proposed file's type, size, and name const validationFunctions = { - validateFile: function (file) { - if (!file) { - console.log('no file found'); - throw new Error('no file provided'); - } - if (/'/.test(file.name)) { - console.log('file name had apostrophe in it'); - throw new Error('apostrophes are not allowed in the file name'); - } - // validate size and type - switch (file.type) { - case 'image/jpeg': - case 'image/jpg': - case 'image/png': - if (file.size > 10000000) { - console.log('file was too big'); - throw new Error('Sorry, images are limited to 10 megabytes.'); - } - break; - case 'image/gif': - if (file.size > 50000000) { - console.log('file was too big'); - throw new Error('Sorry, .gifs are limited to 50 megabytes.'); - } - break; - case 'video/mp4': - if (file.size > 50000000) { - console.log('file was too big'); - throw new Error('Sorry, videos are limited to 50 megabytes.'); - } - break; - default: - console.log('file type is not supported'); - throw new Error(file.type + ' is not a supported file type. Only, .jpeg, .png, .gif, and .mp4 files are currently supported.') - } - }, - // validation function that checks to make sure the claim name is valid - validateClaimName: function (name) { - // ensure a name was entered - if (name.length < 1) { - throw new NameError("You must enter a name for your url"); - } - // validate the characters in the 'name' field - const invalidCharacters = /[^A-Za-z0-9,-]/g.exec(name); - if (invalidCharacters) { - throw new NameError('"' + invalidCharacters + '" characters are not allowed'); - } - }, validateChannelName: function (name) { name = name.substring(name.indexOf('@') + 1); // ensure a name was entered @@ -65,15 +17,21 @@ const validationFunctions = { throw new ChannelPasswordError("You must enter a password for you channel"); } }, - cleanseClaimName: function (name) { - name = name.replace(/\s+/g, '-'); // replace spaces with dashes - name = name.replace(/[^A-Za-z0-9-]/g, ''); // remove all characters that are not A-Z, a-z, 0-9, or '-' - return name; - }, // validation functions to check claim & channel name eligibility as the inputs change + isChannelNameAvailable: function (name) { + return this.isNameAvailable(name, '/api/channel-is-available/'); + }, isNameAvailable: function (name, apiUrl) { + console.log('isNameAvailable?', name); const url = apiUrl + name; - return getRequest(url) + return fetch(url) + .then(function (response) { + return response.json(); + }) + .catch(error => { + console.log('isNameAvailable error', error); + throw error; + }) }, showError: function (errorDisplay, errorMsg) { errorDisplay.hidden = false; @@ -91,90 +49,35 @@ const validationFunctions = { successElement.hidden = true; successElement.innerHTML = ""; }, - checkAvailability: function (name, successDisplayElement, errorDisplayElement, validateName, errorMessage, apiUrl) { + checkChannelName: function (name) { + var successDisplayElement = document.getElementById('input-success-channel-name'); + var errorDisplayElement = document.getElementById('input-error-channel-name'); + var channelName = `@${name}`; var that = this; try { // check to make sure the characters are valid - validateName(name); + that.validateChannelName(channelName); // check to make sure it is available - that.isNameAvailable(name, apiUrl) - .then(function (result) { - if (result === true) { - that.hideError(errorDisplayElement); - that.showSuccess(successDisplayElement) - } else { - that.hideSuccess(successDisplayElement); - that.showError(errorDisplayElement, errorMessage); - } - }) - .catch(error => { - that.hideSuccess(successDisplayElement); - that.showError(errorDisplayElement, error.message); - }); + that.isChannelNameAvailable(channelName) + .then(function(isAvailable){ + console.log('isChannelNameAvailable:', isAvailable); + if (isAvailable) { + that.hideError(errorDisplayElement); + that.showSuccess(successDisplayElement) + } else { + that.hideSuccess(successDisplayElement); + that.showError(errorDisplayElement, 'Sorry, that name is already taken'); + } + }) + .catch(error => { + that.hideSuccess(successDisplayElement); + that.showError(errorDisplayElement, error.message); + }); } catch (error) { that.hideSuccess(successDisplayElement); that.showError(errorDisplayElement, error.message); } }, - checkClaimName: function (name) { - const successDisplayElement = document.getElementById('input-success-claim-name'); - const errorDisplayElement = document.getElementById('input-error-claim-name'); - this.checkAvailability(name, successDisplayElement, errorDisplayElement, this.validateClaimName, 'Sorry, that ending is already taken', '/api/claim-is-available/'); - }, - checkChannelName: function (name) { - const successDisplayElement = document.getElementById('input-success-channel-name'); - const errorDisplayElement = document.getElementById('input-error-channel-name'); - name = `@${name}`; - this.checkAvailability(name, successDisplayElement, errorDisplayElement, this.validateChannelName, 'Sorry, that name is already taken', '/api/channel-is-available/'); - }, - // validation function which checks all aspects of the publish submission - validateFilePublishSubmission: function (stagedFiles, metadata) { - const channelName = metadata.channelName; - const claimName = metadata.name; - var that = this; - return new Promise(function (resolve, reject) { - // 1. make sure 1 file was staged - if (!stagedFiles) { - reject(new FileError("Please select a file")); - return; - } else if (stagedFiles.length > 1) { - reject(new FileError("Only one file is allowed at a time")); - return; - } - // 2. validate the file's name, type, and size - try { - that.validateFile(stagedFiles[0]); - } catch (error) { - reject(error); - return; - } - // 3. validate that a channel was chosen - if (channelName === 'new' || channelName === 'login') { - reject(new ChannelNameError("Please log in to a channel")); - return; - } - ; - // 4. validate the claim name - try { - that.validateClaimName(claimName); - } catch (error) { - reject(error); - return; - } - // if all validation passes, check availability of the name (note: do we need to re-validate channel name vs. credentials as well?) - return that.isNameAvailable(claimName, '/api/claim-is-available/') - .then(result => { - if (result) { - resolve(); - } else { - reject(new NameError('Sorry, that ending is already taken')); - } - }) - .catch(error => { - reject(error); - }); - }); - }, // validation function which checks all aspects of a new channel submission validateNewChannelSubmission: function (userName, password) { const channelName = `@${userName}`; @@ -193,16 +96,15 @@ const validationFunctions = { return reject(error); } // 3. if all validation passes, check availability of the name - that.isNameAvailable(channelName, '/api/channel-is-available/') // validate the availability - .then(function(result) { - if (result) { + that.isChannelNameAvailable(channelName) + .then(function(isAvailable) { + if (isAvailable) { resolve(); } else { reject(new ChannelNameError('Sorry, that name is already taken')); } }) .catch(function(error) { - console.log('error evaluating channel name availability', error); reject(error); }); }); @@ -227,4 +129,4 @@ const validationFunctions = { resolve(); }); } -}; \ No newline at end of file +}; diff --git a/public/bundle/bundle.js b/public/bundle/bundle.js new file mode 100644 index 00000000..42c4a18f --- /dev/null +++ b/public/bundle/bundle.js @@ -0,0 +1,19012 @@ +/******/ (function(modules) { // webpackBootstrap +/******/ // The module cache +/******/ var installedModules = {}; +/******/ +/******/ // The require function +/******/ function __webpack_require__(moduleId) { +/******/ +/******/ // Check if module is in cache +/******/ if(installedModules[moduleId]) { +/******/ return installedModules[moduleId].exports; +/******/ } +/******/ // Create a new module (and put it into the cache) +/******/ var module = installedModules[moduleId] = { +/******/ i: moduleId, +/******/ l: false, +/******/ exports: {} +/******/ }; +/******/ +/******/ // Execute the module function +/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); +/******/ +/******/ // Flag the module as loaded +/******/ module.l = true; +/******/ +/******/ // Return the exports of the module +/******/ return module.exports; +/******/ } +/******/ +/******/ +/******/ // expose the modules object (__webpack_modules__) +/******/ __webpack_require__.m = modules; +/******/ +/******/ // expose the module cache +/******/ __webpack_require__.c = installedModules; +/******/ +/******/ // define getter function for harmony exports +/******/ __webpack_require__.d = function(exports, name, getter) { +/******/ if(!__webpack_require__.o(exports, name)) { +/******/ Object.defineProperty(exports, name, { +/******/ configurable: false, +/******/ enumerable: true, +/******/ get: getter +/******/ }); +/******/ } +/******/ }; +/******/ +/******/ // getDefaultExport function for compatibility with non-harmony modules +/******/ __webpack_require__.n = function(module) { +/******/ var getter = module && module.__esModule ? +/******/ function getDefault() { return module['default']; } : +/******/ function getModuleExports() { return module; }; +/******/ __webpack_require__.d(getter, 'a', getter); +/******/ return getter; +/******/ }; +/******/ +/******/ // Object.prototype.hasOwnProperty.call +/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); }; +/******/ +/******/ // __webpack_public_path__ +/******/ __webpack_require__.p = ""; +/******/ +/******/ // Load entry module and return exports +/******/ return __webpack_require__(__webpack_require__.s = 14); +/******/ }) +/************************************************************************/ +/******/ ([ +/* 0 */ +/***/ (function(module, exports) { + +// shim for using process in browser +var process = module.exports = {}; + +// cached from whatever global is present so that test runners that stub it +// don't break things. But we need to wrap it in a try catch in case it is +// wrapped in strict mode code which doesn't define any globals. It's inside a +// function because try/catches deoptimize in certain engines. + +var cachedSetTimeout; +var cachedClearTimeout; + +function defaultSetTimout() { + throw new Error('setTimeout has not been defined'); +} +function defaultClearTimeout () { + throw new Error('clearTimeout has not been defined'); +} +(function () { + try { + if (typeof setTimeout === 'function') { + cachedSetTimeout = setTimeout; + } else { + cachedSetTimeout = defaultSetTimout; + } + } catch (e) { + cachedSetTimeout = defaultSetTimout; + } + try { + if (typeof clearTimeout === 'function') { + cachedClearTimeout = clearTimeout; + } else { + cachedClearTimeout = defaultClearTimeout; + } + } catch (e) { + cachedClearTimeout = defaultClearTimeout; + } +} ()) +function runTimeout(fun) { + if (cachedSetTimeout === setTimeout) { + //normal enviroments in sane situations + return setTimeout(fun, 0); + } + // if setTimeout wasn't available but was latter defined + if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) { + cachedSetTimeout = setTimeout; + return setTimeout(fun, 0); + } + try { + // when when somebody has screwed with setTimeout but no I.E. maddness + return cachedSetTimeout(fun, 0); + } catch(e){ + try { + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally + return cachedSetTimeout.call(null, fun, 0); + } catch(e){ + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error + return cachedSetTimeout.call(this, fun, 0); + } + } + + +} +function runClearTimeout(marker) { + if (cachedClearTimeout === clearTimeout) { + //normal enviroments in sane situations + return clearTimeout(marker); + } + // if clearTimeout wasn't available but was latter defined + if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) { + cachedClearTimeout = clearTimeout; + return clearTimeout(marker); + } + try { + // when when somebody has screwed with setTimeout but no I.E. maddness + return cachedClearTimeout(marker); + } catch (e){ + try { + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally + return cachedClearTimeout.call(null, marker); + } catch (e){ + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error. + // Some versions of I.E. have different rules for clearTimeout vs setTimeout + return cachedClearTimeout.call(this, marker); + } + } + + + +} +var queue = []; +var draining = false; +var currentQueue; +var queueIndex = -1; + +function cleanUpNextTick() { + if (!draining || !currentQueue) { + return; + } + draining = false; + if (currentQueue.length) { + queue = currentQueue.concat(queue); + } else { + queueIndex = -1; + } + if (queue.length) { + drainQueue(); + } +} + +function drainQueue() { + if (draining) { + return; + } + var timeout = runTimeout(cleanUpNextTick); + draining = true; + + var len = queue.length; + while(len) { + currentQueue = queue; + queue = []; + while (++queueIndex < len) { + if (currentQueue) { + currentQueue[queueIndex].run(); + } + } + queueIndex = -1; + len = queue.length; + } + currentQueue = null; + draining = false; + runClearTimeout(timeout); +} + +process.nextTick = function (fun) { + var args = new Array(arguments.length - 1); + if (arguments.length > 1) { + for (var i = 1; i < arguments.length; i++) { + args[i - 1] = arguments[i]; + } + } + queue.push(new Item(fun, args)); + if (queue.length === 1 && !draining) { + runTimeout(drainQueue); + } +}; + +// v8 likes predictible objects +function Item(fun, array) { + this.fun = fun; + this.array = array; +} +Item.prototype.run = function () { + this.fun.apply(null, this.array); +}; +process.title = 'browser'; +process.browser = true; +process.env = {}; +process.argv = []; +process.version = ''; // empty string to avoid regexp issues +process.versions = {}; + +function noop() {} + +process.on = noop; +process.addListener = noop; +process.once = noop; +process.off = noop; +process.removeListener = noop; +process.removeAllListeners = noop; +process.emit = noop; +process.prependListener = noop; +process.prependOnceListener = noop; + +process.listeners = function (name) { return [] } + +process.binding = function (name) { + throw new Error('process.binding is not supported'); +}; + +process.cwd = function () { return '/' }; +process.chdir = function (dir) { + throw new Error('process.chdir is not supported'); +}; +process.umask = function() { return 0; }; + + +/***/ }), +/* 1 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/* WEBPACK VAR INJECTION */(function(process) { + +if (process.env.NODE_ENV === 'production') { + module.exports = __webpack_require__(15); +} else { + module.exports = __webpack_require__(16); +} + +/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(0))) + +/***/ }), +/* 2 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; + + +/** + * Copyright (c) 2013-present, Facebook, Inc. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + * + */ + +function makeEmptyFunction(arg) { + return function () { + return arg; + }; +} + +/** + * This function accepts and discards inputs; it has no side effects. This is + * primarily useful idiomatically for overridable function endpoints which + * always need to be callable, since JS lacks a null-call idiom ala Cocoa. + */ +var emptyFunction = function emptyFunction() {}; + +emptyFunction.thatReturns = makeEmptyFunction; +emptyFunction.thatReturnsFalse = makeEmptyFunction(false); +emptyFunction.thatReturnsTrue = makeEmptyFunction(true); +emptyFunction.thatReturnsNull = makeEmptyFunction(null); +emptyFunction.thatReturnsThis = function () { + return this; +}; +emptyFunction.thatReturnsArgument = function (arg) { + return arg; +}; + +module.exports = emptyFunction; + +/***/ }), +/* 3 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/* +object-assign +(c) Sindre Sorhus +@license MIT +*/ + + +/* eslint-disable no-unused-vars */ +var getOwnPropertySymbols = Object.getOwnPropertySymbols; +var hasOwnProperty = Object.prototype.hasOwnProperty; +var propIsEnumerable = Object.prototype.propertyIsEnumerable; + +function toObject(val) { + if (val === null || val === undefined) { + throw new TypeError('Object.assign cannot be called with null or undefined'); + } + + return Object(val); +} + +function shouldUseNative() { + try { + if (!Object.assign) { + return false; + } + + // Detect buggy property enumeration order in older V8 versions. + + // https://bugs.chromium.org/p/v8/issues/detail?id=4118 + var test1 = new String('abc'); // eslint-disable-line no-new-wrappers + test1[5] = 'de'; + if (Object.getOwnPropertyNames(test1)[0] === '5') { + return false; + } + + // https://bugs.chromium.org/p/v8/issues/detail?id=3056 + var test2 = {}; + for (var i = 0; i < 10; i++) { + test2['_' + String.fromCharCode(i)] = i; + } + var order2 = Object.getOwnPropertyNames(test2).map(function (n) { + return test2[n]; + }); + if (order2.join('') !== '0123456789') { + return false; + } + + // https://bugs.chromium.org/p/v8/issues/detail?id=3056 + var test3 = {}; + 'abcdefghijklmnopqrst'.split('').forEach(function (letter) { + test3[letter] = letter; + }); + if (Object.keys(Object.assign({}, test3)).join('') !== + 'abcdefghijklmnopqrst') { + return false; + } + + return true; + } catch (err) { + // We don't expect any of the above to throw, but better to be safe. + return false; + } +} + +module.exports = shouldUseNative() ? Object.assign : function (target, source) { + var from; + var to = toObject(target); + var symbols; + + for (var s = 1; s < arguments.length; s++) { + from = Object(arguments[s]); + + for (var key in from) { + if (hasOwnProperty.call(from, key)) { + to[key] = from[key]; + } + } + + if (getOwnPropertySymbols) { + symbols = getOwnPropertySymbols(from); + for (var i = 0; i < symbols.length; i++) { + if (propIsEnumerable.call(from, symbols[i])) { + to[symbols[i]] = from[symbols[i]]; + } + } + } + } + + return to; +}; + + +/***/ }), +/* 4 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/* WEBPACK VAR INJECTION */(function(process) {/** + * Copyright (c) 2013-present, Facebook, Inc. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + */ + + + +var emptyObject = {}; + +if (process.env.NODE_ENV !== 'production') { + Object.freeze(emptyObject); +} + +module.exports = emptyObject; +/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(0))) + +/***/ }), +/* 5 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/* WEBPACK VAR INJECTION */(function(process) {/** + * Copyright (c) 2013-present, Facebook, Inc. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + */ + + + +/** + * Use invariant() to assert state which your program assumes to be true. + * + * Provide sprintf-style format (only %s is supported) and arguments + * to provide information about what broke and what you were + * expecting. + * + * The invariant message will be stripped in production, but the invariant + * will remain to ensure logic does not differ in production. + */ + +var validateFormat = function validateFormat(format) {}; + +if (process.env.NODE_ENV !== 'production') { + validateFormat = function validateFormat(format) { + if (format === undefined) { + throw new Error('invariant requires an error message argument'); + } + }; +} + +function invariant(condition, format, a, b, c, d, e, f) { + validateFormat(format); + + if (!condition) { + var error; + if (format === undefined) { + error = new Error('Minified exception occurred; use the non-minified dev environment ' + 'for the full error message and additional helpful warnings.'); + } else { + var args = [a, b, c, d, e, f]; + var argIndex = 0; + error = new Error(format.replace(/%s/g, function () { + return args[argIndex++]; + })); + error.name = 'Invariant Violation'; + } + + error.framesToPop = 1; // we don't care about invariant's own frame + throw error; + } +} + +module.exports = invariant; +/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(0))) + +/***/ }), +/* 6 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/* WEBPACK VAR INJECTION */(function(process) {/** + * Copyright (c) 2014-present, Facebook, Inc. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + */ + + + +var emptyFunction = __webpack_require__(2); + +/** + * Similar to invariant but only logs a warning if the condition is not met. + * This can be used to log issues in development environments in critical + * paths. Removing the logging code for production environments will keep the + * same logic and follow the same code paths. + */ + +var warning = emptyFunction; + +if (process.env.NODE_ENV !== 'production') { + var printWarning = function printWarning(format) { + for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) { + args[_key - 1] = arguments[_key]; + } + + var argIndex = 0; + var message = 'Warning: ' + format.replace(/%s/g, function () { + return args[argIndex++]; + }); + if (typeof console !== 'undefined') { + console.error(message); + } + try { + // --- Welcome to debugging React --- + // This error was thrown as a convenience so that you can use this stack + // to find the callsite that caused this warning to fire. + throw new Error(message); + } catch (x) {} + }; + + warning = function warning(condition, format) { + if (format === undefined) { + throw new Error('`warning(condition, format, ...args)` requires a warning ' + 'message argument'); + } + + if (format.indexOf('Failed Composite propType: ') === 0) { + return; // Ignore CompositeComponent proptype check. + } + + if (!condition) { + for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) { + args[_key2 - 2] = arguments[_key2]; + } + + printWarning.apply(undefined, [format].concat(args)); + } + }; +} + +module.exports = warning; +/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(0))) + +/***/ }), +/* 7 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/* WEBPACK VAR INJECTION */(function(process) {/** + * Copyright (c) 2013-present, Facebook, Inc. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + */ + + + +if (process.env.NODE_ENV !== 'production') { + var invariant = __webpack_require__(5); + var warning = __webpack_require__(6); + var ReactPropTypesSecret = __webpack_require__(17); + var loggedTypeFailures = {}; +} + +/** + * Assert that the values match with the type specs. + * Error messages are memorized and will only be shown once. + * + * @param {object} typeSpecs Map of name to a ReactPropType + * @param {object} values Runtime values that need to be type-checked + * @param {string} location e.g. "prop", "context", "child context" + * @param {string} componentName Name of the component for error messages. + * @param {?Function} getStack Returns the component stack. + * @private + */ +function checkPropTypes(typeSpecs, values, location, componentName, getStack) { + if (process.env.NODE_ENV !== 'production') { + for (var typeSpecName in typeSpecs) { + if (typeSpecs.hasOwnProperty(typeSpecName)) { + var error; + // Prop type validation may throw. In case they do, we don't want to + // fail the render phase where it didn't fail before. So we log it. + // After these have been cleaned up, we'll let them throw. + try { + // This is intentionally an invariant that gets caught. It's the same + // behavior as without this statement except with a better message. + invariant(typeof typeSpecs[typeSpecName] === 'function', '%s: %s type `%s` is invalid; it must be a function, usually from ' + 'the `prop-types` package, but received `%s`.', componentName || 'React class', location, typeSpecName, typeof typeSpecs[typeSpecName]); + error = typeSpecs[typeSpecName](values, typeSpecName, componentName, location, null, ReactPropTypesSecret); + } catch (ex) { + error = ex; + } + warning(!error || error instanceof Error, '%s: type specification of %s `%s` is invalid; the type checker ' + 'function must return `null` or an `Error` but returned a %s. ' + 'You may have forgotten to pass an argument to the type checker ' + 'creator (arrayOf, instanceOf, objectOf, oneOf, oneOfType, and ' + 'shape all require an argument).', componentName || 'React class', location, typeSpecName, typeof error); + if (error instanceof Error && !(error.message in loggedTypeFailures)) { + // Only monitor this failure once because there tends to be a lot of the + // same error. + loggedTypeFailures[error.message] = true; + + var stack = getStack ? getStack() : ''; + + warning(false, 'Failed %s type: %s%s', location, error.message, stack != null ? stack : ''); + } + } + } + } +} + +module.exports = checkPropTypes; + +/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(0))) + +/***/ }), +/* 8 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/** + * Copyright (c) 2013-present, Facebook, Inc. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + */ + + + +var canUseDOM = !!(typeof window !== 'undefined' && window.document && window.document.createElement); + +/** + * Simple, lightweight module assisting with the detection and context of + * Worker. Helps avoid circular dependencies and allows code to reason about + * whether or not they are in a Worker, even if they never include the main + * `ReactWorker` dependency. + */ +var ExecutionEnvironment = { + + canUseDOM: canUseDOM, + + canUseWorkers: typeof Worker !== 'undefined', + + canUseEventListeners: canUseDOM && !!(window.addEventListener || window.attachEvent), + + canUseViewport: canUseDOM && !!window.screen, + + isInWorker: !canUseDOM // For now, this is true - might change in the future. + +}; + +module.exports = ExecutionEnvironment; + +/***/ }), +/* 9 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/* WEBPACK VAR INJECTION */(function(process) { + +/** + * Copyright (c) 2013-present, Facebook, Inc. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + * @typechecks + */ + +var emptyFunction = __webpack_require__(2); + +/** + * Upstream version of event listener. Does not take into account specific + * nature of platform. + */ +var EventListener = { + /** + * Listen to DOM events during the bubble phase. + * + * @param {DOMEventTarget} target DOM element to register listener on. + * @param {string} eventType Event type, e.g. 'click' or 'mouseover'. + * @param {function} callback Callback function. + * @return {object} Object with a `remove` method. + */ + listen: function listen(target, eventType, callback) { + if (target.addEventListener) { + target.addEventListener(eventType, callback, false); + return { + remove: function remove() { + target.removeEventListener(eventType, callback, false); + } + }; + } else if (target.attachEvent) { + target.attachEvent('on' + eventType, callback); + return { + remove: function remove() { + target.detachEvent('on' + eventType, callback); + } + }; + } + }, + + /** + * Listen to DOM events during the capture phase. + * + * @param {DOMEventTarget} target DOM element to register listener on. + * @param {string} eventType Event type, e.g. 'click' or 'mouseover'. + * @param {function} callback Callback function. + * @return {object} Object with a `remove` method. + */ + capture: function capture(target, eventType, callback) { + if (target.addEventListener) { + target.addEventListener(eventType, callback, true); + return { + remove: function remove() { + target.removeEventListener(eventType, callback, true); + } + }; + } else { + if (process.env.NODE_ENV !== 'production') { + console.error('Attempted to listen to events during the capture phase on a ' + 'browser that does not support the capture phase. Your application ' + 'will not receive some events.'); + } + return { + remove: emptyFunction + }; + } + }, + + registerDefault: function registerDefault() {} +}; + +module.exports = EventListener; +/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(0))) + +/***/ }), +/* 10 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; + + +/** + * Copyright (c) 2013-present, Facebook, Inc. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + * @typechecks + */ + +/* eslint-disable fb-www/typeof-undefined */ + +/** + * Same as document.activeElement but wraps in a try-catch block. In IE it is + * not safe to call document.activeElement if there is nothing focused. + * + * The activeElement will be null only if the document or document body is not + * yet defined. + * + * @param {?DOMDocument} doc Defaults to current document. + * @return {?DOMElement} + */ +function getActiveElement(doc) /*?DOMElement*/{ + doc = doc || (typeof document !== 'undefined' ? document : undefined); + if (typeof doc === 'undefined') { + return null; + } + try { + return doc.activeElement || doc.body; + } catch (e) { + return doc.body; + } +} + +module.exports = getActiveElement; + +/***/ }), +/* 11 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/** + * Copyright (c) 2013-present, Facebook, Inc. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + * @typechecks + * + */ + +/*eslint-disable no-self-compare */ + + + +var hasOwnProperty = Object.prototype.hasOwnProperty; + +/** + * inlined Object.is polyfill to avoid requiring consumers ship their own + * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is + */ +function is(x, y) { + // SameValue algorithm + if (x === y) { + // Steps 1-5, 7-10 + // Steps 6.b-6.e: +0 != -0 + // Added the nonzero y check to make Flow happy, but it is redundant + return x !== 0 || y !== 0 || 1 / x === 1 / y; + } else { + // Step 6.a: NaN == NaN + return x !== x && y !== y; + } +} + +/** + * Performs equality by iterating through keys on an object and returning false + * when any key has values which are not strictly equal between the arguments. + * Returns true when the values of all keys are strictly equal. + */ +function shallowEqual(objA, objB) { + if (is(objA, objB)) { + return true; + } + + if (typeof objA !== 'object' || objA === null || typeof objB !== 'object' || objB === null) { + return false; + } + + var keysA = Object.keys(objA); + var keysB = Object.keys(objB); + + if (keysA.length !== keysB.length) { + return false; + } + + // Test for A's keys different from B. + for (var i = 0; i < keysA.length; i++) { + if (!hasOwnProperty.call(objB, keysA[i]) || !is(objA[keysA[i]], objB[keysA[i]])) { + return false; + } + } + + return true; +} + +module.exports = shallowEqual; + +/***/ }), +/* 12 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; + + +/** + * Copyright (c) 2013-present, Facebook, Inc. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + * + */ + +var isTextNode = __webpack_require__(20); + +/*eslint-disable no-bitwise */ + +/** + * Checks if a given DOM node contains or is another DOM node. + */ +function containsNode(outerNode, innerNode) { + if (!outerNode || !innerNode) { + return false; + } else if (outerNode === innerNode) { + return true; + } else if (isTextNode(outerNode)) { + return false; + } else if (isTextNode(innerNode)) { + return containsNode(outerNode, innerNode.parentNode); + } else if ('contains' in outerNode) { + return outerNode.contains(innerNode); + } else if (outerNode.compareDocumentPosition) { + return !!(outerNode.compareDocumentPosition(innerNode) & 16); + } else { + return false; + } +} + +module.exports = containsNode; + +/***/ }), +/* 13 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/** + * Copyright (c) 2013-present, Facebook, Inc. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + */ + + + +/** + * @param {DOMElement} node input/textarea to focus + */ + +function focusNode(node) { + // IE8 can throw "Can't move focus to the control because it is invisible, + // not enabled, or of a type that does not accept the focus." for all kinds of + // reasons that are too expensive and fragile to test. + try { + node.focus(); + } catch (e) {} +} + +module.exports = focusNode; + +/***/ }), +/* 14 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; + + +var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); + +var _react = __webpack_require__(1); + +var _react2 = _interopRequireDefault(_react); + +var _reactDom = __webpack_require__(18); + +var _reactDom2 = _interopRequireDefault(_reactDom); + +var _dropzone = __webpack_require__(27); + +var _dropzone2 = _interopRequireDefault(_dropzone); + +var _publishDetails = __webpack_require__(28); + +var _publishDetails2 = _interopRequireDefault(_publishDetails); + +var _publishStatus = __webpack_require__(30); + +var _publishStatus2 = _interopRequireDefault(_publishStatus); + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + +function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } + +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; } + +function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } + +var DROPZONE = 'DROPZONE'; +var DETAILS = 'DETAILS'; +var STATUS = 'STATUS'; +var initialState = { + showComponent: DROPZONE, // DROPZONE, DETAILS, or PUBLISHING + file: null, + title: '', + channel: '', + url: '', + thumbnail: '', + description: '', + license: '', + nsfw: '' +}; + +var Uploader = function (_React$Component) { + _inherits(Uploader, _React$Component); + + function Uploader(props) { + _classCallCheck(this, Uploader); + + var _this = _possibleConstructorReturn(this, (Uploader.__proto__ || Object.getPrototypeOf(Uploader)).call(this, props)); + + _this.state = initialState; + // bind class methods with `this` + _this.updateUploaderState = _this.updateUploaderState.bind(_this); + _this.clearUploaderState = _this.clearUploaderState.bind(_this); + _this.showComponent = _this.showComponent.bind(_this); + _this.stageFileAndShowDetails = _this.stageFileAndShowDetails.bind(_this); + return _this; + } + + _createClass(Uploader, [{ + key: 'updateUploaderState', + value: function updateUploaderState(name, value) { + console.log('updateUploaderState ' + name + ' ' + value); + this.setState(_defineProperty({}, name, value)); + } + }, { + key: 'clearUploaderState', + value: function clearUploaderState() { + this.setState(initialState); + } + }, { + key: 'showComponent', + value: function showComponent(component) { + this.setState({ showComponent: component }); + } + }, { + key: 'stageFileAndShowDetails', + value: function stageFileAndShowDetails(selectedFile) { + console.log('stageFileAndShowDetails', selectedFile); + // store the selected file for upload + this.setState({ 'file': selectedFile }); + // hide the dropzone and show the details + this.showComponent(DETAILS); + } + }, { + key: 'render', + value: function render() { + return _react2.default.createElement( + 'div', + { className: 'row row--tall flex-container--column' }, + this.state.showComponent === DROPZONE && _react2.default.createElement(_dropzone2.default, { stageFileAndShowDetails: this.stageFileAndShowDetails }), + this.state.showComponent === DETAILS && _react2.default.createElement(_publishDetails2.default, { + updateUploaderState: this.updateUploaderState, + clearUploaderState: this.clearUploaderState, + file: this.state.file, + title: this.state.title, + channel: this.state.channel, + url: this.state.url, + thumbnail: this.state.thumbnail, + description: this.state.description, + license: this.state.license, + nsfw: this.state.nsfw + }), + this.state.showComponent === STATUS && _react2.default.createElement(_publishStatus2.default, null) + ); + } + }]); + + return Uploader; +}(_react2.default.Component); + +; + +_reactDom2.default.render(_react2.default.createElement(Uploader, null), document.getElementById('react-uploader')); + +/***/ }), +/* 15 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/** @license React v16.2.0 + * react.production.min.js + * + * Copyright (c) 2013-present, Facebook, Inc. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + */ + +var m=__webpack_require__(3),n=__webpack_require__(4),p=__webpack_require__(2),q="function"===typeof Symbol&&Symbol["for"],r=q?Symbol["for"]("react.element"):60103,t=q?Symbol["for"]("react.call"):60104,u=q?Symbol["for"]("react.return"):60105,v=q?Symbol["for"]("react.portal"):60106,w=q?Symbol["for"]("react.fragment"):60107,x="function"===typeof Symbol&&Symbol.iterator; +function y(a){for(var b=arguments.length-1,e="Minified React error #"+a+"; visit http://facebook.github.io/react/docs/error-decoder.html?invariant\x3d"+a,c=0;cM.length&&M.push(a)} +function P(a,b,e,c){var d=typeof a;if("undefined"===d||"boolean"===d)a=null;var g=!1;if(null===a)g=!0;else switch(d){case "string":case "number":g=!0;break;case "object":switch(a.$$typeof){case r:case t:case u:case v:g=!0}}if(g)return e(c,a,""===b?"."+Q(a,0):b),1;g=0;b=""===b?".":b+":";if(Array.isArray(a))for(var k=0;k 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) { + args[_key - 1] = arguments[_key]; + } + + var argIndex = 0; + var message = 'Warning: ' + format.replace(/%s/g, function () { + return args[argIndex++]; + }); + if (typeof console !== 'undefined') { + console.warn(message); + } + try { + // --- Welcome to debugging React --- + // This error was thrown as a convenience so that you can use this stack + // to find the callsite that caused this warning to fire. + throw new Error(message); + } catch (x) {} + }; + + lowPriorityWarning = function (condition, format) { + if (format === undefined) { + throw new Error('`warning(condition, format, ...args)` requires a warning ' + 'message argument'); + } + if (!condition) { + for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) { + args[_key2 - 2] = arguments[_key2]; + } + + printWarning.apply(undefined, [format].concat(args)); + } + }; +} + +var lowPriorityWarning$1 = lowPriorityWarning; + +var didWarnStateUpdateForUnmountedComponent = {}; + +function warnNoop(publicInstance, callerName) { + { + var constructor = publicInstance.constructor; + var componentName = constructor && (constructor.displayName || constructor.name) || 'ReactClass'; + var warningKey = componentName + '.' + callerName; + if (didWarnStateUpdateForUnmountedComponent[warningKey]) { + return; + } + warning(false, '%s(...): Can only update a mounted or mounting component. ' + 'This usually means you called %s() on an unmounted component. ' + 'This is a no-op.\n\nPlease check the code for the %s component.', callerName, callerName, componentName); + didWarnStateUpdateForUnmountedComponent[warningKey] = true; + } +} + +/** + * This is the abstract API for an update queue. + */ +var ReactNoopUpdateQueue = { + /** + * Checks whether or not this composite component is mounted. + * @param {ReactClass} publicInstance The instance we want to test. + * @return {boolean} True if mounted, false otherwise. + * @protected + * @final + */ + isMounted: function (publicInstance) { + return false; + }, + + /** + * Forces an update. This should only be invoked when it is known with + * certainty that we are **not** in a DOM transaction. + * + * You may want to call this when you know that some deeper aspect of the + * component's state has changed but `setState` was not called. + * + * This will not invoke `shouldComponentUpdate`, but it will invoke + * `componentWillUpdate` and `componentDidUpdate`. + * + * @param {ReactClass} publicInstance The instance that should rerender. + * @param {?function} callback Called after component is updated. + * @param {?string} callerName name of the calling function in the public API. + * @internal + */ + enqueueForceUpdate: function (publicInstance, callback, callerName) { + warnNoop(publicInstance, 'forceUpdate'); + }, + + /** + * Replaces all of the state. Always use this or `setState` to mutate state. + * You should treat `this.state` as immutable. + * + * There is no guarantee that `this.state` will be immediately updated, so + * accessing `this.state` after calling this method may return the old value. + * + * @param {ReactClass} publicInstance The instance that should rerender. + * @param {object} completeState Next state. + * @param {?function} callback Called after component is updated. + * @param {?string} callerName name of the calling function in the public API. + * @internal + */ + enqueueReplaceState: function (publicInstance, completeState, callback, callerName) { + warnNoop(publicInstance, 'replaceState'); + }, + + /** + * Sets a subset of the state. This only exists because _pendingState is + * internal. This provides a merging strategy that is not available to deep + * properties which is confusing. TODO: Expose pendingState or don't use it + * during the merge. + * + * @param {ReactClass} publicInstance The instance that should rerender. + * @param {object} partialState Next partial state to be merged with state. + * @param {?function} callback Called after component is updated. + * @param {?string} Name of the calling function in the public API. + * @internal + */ + enqueueSetState: function (publicInstance, partialState, callback, callerName) { + warnNoop(publicInstance, 'setState'); + } +}; + +/** + * Base class helpers for the updating state of a component. + */ +function Component(props, context, updater) { + this.props = props; + this.context = context; + this.refs = emptyObject; + // We initialize the default updater but the real one gets injected by the + // renderer. + this.updater = updater || ReactNoopUpdateQueue; +} + +Component.prototype.isReactComponent = {}; + +/** + * Sets a subset of the state. Always use this to mutate + * state. You should treat `this.state` as immutable. + * + * There is no guarantee that `this.state` will be immediately updated, so + * accessing `this.state` after calling this method may return the old value. + * + * There is no guarantee that calls to `setState` will run synchronously, + * as they may eventually be batched together. You can provide an optional + * callback that will be executed when the call to setState is actually + * completed. + * + * When a function is provided to setState, it will be called at some point in + * the future (not synchronously). It will be called with the up to date + * component arguments (state, props, context). These values can be different + * from this.* because your function may be called after receiveProps but before + * shouldComponentUpdate, and this new state, props, and context will not yet be + * assigned to this. + * + * @param {object|function} partialState Next partial state or function to + * produce next partial state to be merged with current state. + * @param {?function} callback Called after state is updated. + * @final + * @protected + */ +Component.prototype.setState = function (partialState, callback) { + !(typeof partialState === 'object' || typeof partialState === 'function' || partialState == null) ? invariant(false, 'setState(...): takes an object of state variables to update or a function which returns an object of state variables.') : void 0; + this.updater.enqueueSetState(this, partialState, callback, 'setState'); +}; + +/** + * Forces an update. This should only be invoked when it is known with + * certainty that we are **not** in a DOM transaction. + * + * You may want to call this when you know that some deeper aspect of the + * component's state has changed but `setState` was not called. + * + * This will not invoke `shouldComponentUpdate`, but it will invoke + * `componentWillUpdate` and `componentDidUpdate`. + * + * @param {?function} callback Called after update is complete. + * @final + * @protected + */ +Component.prototype.forceUpdate = function (callback) { + this.updater.enqueueForceUpdate(this, callback, 'forceUpdate'); +}; + +/** + * Deprecated APIs. These APIs used to exist on classic React classes but since + * we would like to deprecate them, we're not going to move them over to this + * modern base class. Instead, we define a getter that warns if it's accessed. + */ +{ + var deprecatedAPIs = { + isMounted: ['isMounted', 'Instead, make sure to clean up subscriptions and pending requests in ' + 'componentWillUnmount to prevent memory leaks.'], + replaceState: ['replaceState', 'Refactor your code to use setState instead (see ' + 'https://github.com/facebook/react/issues/3236).'] + }; + var defineDeprecationWarning = function (methodName, info) { + Object.defineProperty(Component.prototype, methodName, { + get: function () { + lowPriorityWarning$1(false, '%s(...) is deprecated in plain JavaScript React classes. %s', info[0], info[1]); + return undefined; + } + }); + }; + for (var fnName in deprecatedAPIs) { + if (deprecatedAPIs.hasOwnProperty(fnName)) { + defineDeprecationWarning(fnName, deprecatedAPIs[fnName]); + } + } +} + +/** + * Base class helpers for the updating state of a component. + */ +function PureComponent(props, context, updater) { + // Duplicated from Component. + this.props = props; + this.context = context; + this.refs = emptyObject; + // We initialize the default updater but the real one gets injected by the + // renderer. + this.updater = updater || ReactNoopUpdateQueue; +} + +function ComponentDummy() {} +ComponentDummy.prototype = Component.prototype; +var pureComponentPrototype = PureComponent.prototype = new ComponentDummy(); +pureComponentPrototype.constructor = PureComponent; +// Avoid an extra prototype jump for these methods. +_assign(pureComponentPrototype, Component.prototype); +pureComponentPrototype.isPureReactComponent = true; + +function AsyncComponent(props, context, updater) { + // Duplicated from Component. + this.props = props; + this.context = context; + this.refs = emptyObject; + // We initialize the default updater but the real one gets injected by the + // renderer. + this.updater = updater || ReactNoopUpdateQueue; +} + +var asyncComponentPrototype = AsyncComponent.prototype = new ComponentDummy(); +asyncComponentPrototype.constructor = AsyncComponent; +// Avoid an extra prototype jump for these methods. +_assign(asyncComponentPrototype, Component.prototype); +asyncComponentPrototype.unstable_isAsyncReactComponent = true; +asyncComponentPrototype.render = function () { + return this.props.children; +}; + +/** + * Keeps track of the current owner. + * + * The current owner is the component who should own any components that are + * currently being constructed. + */ +var ReactCurrentOwner = { + /** + * @internal + * @type {ReactComponent} + */ + current: null +}; + +var hasOwnProperty = Object.prototype.hasOwnProperty; + +var RESERVED_PROPS = { + key: true, + ref: true, + __self: true, + __source: true +}; + +var specialPropKeyWarningShown; +var specialPropRefWarningShown; + +function hasValidRef(config) { + { + if (hasOwnProperty.call(config, 'ref')) { + var getter = Object.getOwnPropertyDescriptor(config, 'ref').get; + if (getter && getter.isReactWarning) { + return false; + } + } + } + return config.ref !== undefined; +} + +function hasValidKey(config) { + { + if (hasOwnProperty.call(config, 'key')) { + var getter = Object.getOwnPropertyDescriptor(config, 'key').get; + if (getter && getter.isReactWarning) { + return false; + } + } + } + return config.key !== undefined; +} + +function defineKeyPropWarningGetter(props, displayName) { + var warnAboutAccessingKey = function () { + if (!specialPropKeyWarningShown) { + specialPropKeyWarningShown = true; + warning(false, '%s: `key` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://fb.me/react-special-props)', displayName); + } + }; + warnAboutAccessingKey.isReactWarning = true; + Object.defineProperty(props, 'key', { + get: warnAboutAccessingKey, + configurable: true + }); +} + +function defineRefPropWarningGetter(props, displayName) { + var warnAboutAccessingRef = function () { + if (!specialPropRefWarningShown) { + specialPropRefWarningShown = true; + warning(false, '%s: `ref` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://fb.me/react-special-props)', displayName); + } + }; + warnAboutAccessingRef.isReactWarning = true; + Object.defineProperty(props, 'ref', { + get: warnAboutAccessingRef, + configurable: true + }); +} + +/** + * Factory method to create a new React element. This no longer adheres to + * the class pattern, so do not use new to call it. Also, no instanceof check + * will work. Instead test $$typeof field against Symbol.for('react.element') to check + * if something is a React Element. + * + * @param {*} type + * @param {*} key + * @param {string|object} ref + * @param {*} self A *temporary* helper to detect places where `this` is + * different from the `owner` when React.createElement is called, so that we + * can warn. We want to get rid of owner and replace string `ref`s with arrow + * functions, and as long as `this` and owner are the same, there will be no + * change in behavior. + * @param {*} source An annotation object (added by a transpiler or otherwise) + * indicating filename, line number, and/or other information. + * @param {*} owner + * @param {*} props + * @internal + */ +var ReactElement = function (type, key, ref, self, source, owner, props) { + var element = { + // This tag allow us to uniquely identify this as a React Element + $$typeof: REACT_ELEMENT_TYPE, + + // Built-in properties that belong on the element + type: type, + key: key, + ref: ref, + props: props, + + // Record the component responsible for creating this element. + _owner: owner + }; + + { + // The validation flag is currently mutative. We put it on + // an external backing store so that we can freeze the whole object. + // This can be replaced with a WeakMap once they are implemented in + // commonly used development environments. + element._store = {}; + + // To make comparing ReactElements easier for testing purposes, we make + // the validation flag non-enumerable (where possible, which should + // include every environment we run tests in), so the test framework + // ignores it. + Object.defineProperty(element._store, 'validated', { + configurable: false, + enumerable: false, + writable: true, + value: false + }); + // self and source are DEV only properties. + Object.defineProperty(element, '_self', { + configurable: false, + enumerable: false, + writable: false, + value: self + }); + // Two elements created in two different places should be considered + // equal for testing purposes and therefore we hide it from enumeration. + Object.defineProperty(element, '_source', { + configurable: false, + enumerable: false, + writable: false, + value: source + }); + if (Object.freeze) { + Object.freeze(element.props); + Object.freeze(element); + } + } + + return element; +}; + +/** + * Create and return a new ReactElement of the given type. + * See https://reactjs.org/docs/react-api.html#createelement + */ +function createElement(type, config, children) { + var propName; + + // Reserved names are extracted + var props = {}; + + var key = null; + var ref = null; + var self = null; + var source = null; + + if (config != null) { + if (hasValidRef(config)) { + ref = config.ref; + } + if (hasValidKey(config)) { + key = '' + config.key; + } + + self = config.__self === undefined ? null : config.__self; + source = config.__source === undefined ? null : config.__source; + // Remaining properties are added to a new props object + for (propName in config) { + if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) { + props[propName] = config[propName]; + } + } + } + + // Children can be more than one argument, and those are transferred onto + // the newly allocated props object. + var childrenLength = arguments.length - 2; + if (childrenLength === 1) { + props.children = children; + } else if (childrenLength > 1) { + var childArray = Array(childrenLength); + for (var i = 0; i < childrenLength; i++) { + childArray[i] = arguments[i + 2]; + } + { + if (Object.freeze) { + Object.freeze(childArray); + } + } + props.children = childArray; + } + + // Resolve default props + if (type && type.defaultProps) { + var defaultProps = type.defaultProps; + for (propName in defaultProps) { + if (props[propName] === undefined) { + props[propName] = defaultProps[propName]; + } + } + } + { + if (key || ref) { + if (typeof props.$$typeof === 'undefined' || props.$$typeof !== REACT_ELEMENT_TYPE) { + var displayName = typeof type === 'function' ? type.displayName || type.name || 'Unknown' : type; + if (key) { + defineKeyPropWarningGetter(props, displayName); + } + if (ref) { + defineRefPropWarningGetter(props, displayName); + } + } + } + } + return ReactElement(type, key, ref, self, source, ReactCurrentOwner.current, props); +} + +/** + * Return a function that produces ReactElements of a given type. + * See https://reactjs.org/docs/react-api.html#createfactory + */ + + +function cloneAndReplaceKey(oldElement, newKey) { + var newElement = ReactElement(oldElement.type, newKey, oldElement.ref, oldElement._self, oldElement._source, oldElement._owner, oldElement.props); + + return newElement; +} + +/** + * Clone and return a new ReactElement using element as the starting point. + * See https://reactjs.org/docs/react-api.html#cloneelement + */ +function cloneElement(element, config, children) { + var propName; + + // Original props are copied + var props = _assign({}, element.props); + + // Reserved names are extracted + var key = element.key; + var ref = element.ref; + // Self is preserved since the owner is preserved. + var self = element._self; + // Source is preserved since cloneElement is unlikely to be targeted by a + // transpiler, and the original source is probably a better indicator of the + // true owner. + var source = element._source; + + // Owner will be preserved, unless ref is overridden + var owner = element._owner; + + if (config != null) { + if (hasValidRef(config)) { + // Silently steal the ref from the parent. + ref = config.ref; + owner = ReactCurrentOwner.current; + } + if (hasValidKey(config)) { + key = '' + config.key; + } + + // Remaining properties override existing props + var defaultProps; + if (element.type && element.type.defaultProps) { + defaultProps = element.type.defaultProps; + } + for (propName in config) { + if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) { + if (config[propName] === undefined && defaultProps !== undefined) { + // Resolve default props + props[propName] = defaultProps[propName]; + } else { + props[propName] = config[propName]; + } + } + } + } + + // Children can be more than one argument, and those are transferred onto + // the newly allocated props object. + var childrenLength = arguments.length - 2; + if (childrenLength === 1) { + props.children = children; + } else if (childrenLength > 1) { + var childArray = Array(childrenLength); + for (var i = 0; i < childrenLength; i++) { + childArray[i] = arguments[i + 2]; + } + props.children = childArray; + } + + return ReactElement(element.type, key, ref, self, source, owner, props); +} + +/** + * Verifies the object is a ReactElement. + * See https://reactjs.org/docs/react-api.html#isvalidelement + * @param {?object} object + * @return {boolean} True if `object` is a valid component. + * @final + */ +function isValidElement(object) { + return typeof object === 'object' && object !== null && object.$$typeof === REACT_ELEMENT_TYPE; +} + +var ReactDebugCurrentFrame = {}; + +{ + // Component that is being worked on + ReactDebugCurrentFrame.getCurrentStack = null; + + ReactDebugCurrentFrame.getStackAddendum = function () { + var impl = ReactDebugCurrentFrame.getCurrentStack; + if (impl) { + return impl(); + } + return null; + }; +} + +var SEPARATOR = '.'; +var SUBSEPARATOR = ':'; + +/** + * Escape and wrap key so it is safe to use as a reactid + * + * @param {string} key to be escaped. + * @return {string} the escaped key. + */ +function escape(key) { + var escapeRegex = /[=:]/g; + var escaperLookup = { + '=': '=0', + ':': '=2' + }; + var escapedString = ('' + key).replace(escapeRegex, function (match) { + return escaperLookup[match]; + }); + + return '$' + escapedString; +} + +/** + * TODO: Test that a single child and an array with one item have the same key + * pattern. + */ + +var didWarnAboutMaps = false; + +var userProvidedKeyEscapeRegex = /\/+/g; +function escapeUserProvidedKey(text) { + return ('' + text).replace(userProvidedKeyEscapeRegex, '$&/'); +} + +var POOL_SIZE = 10; +var traverseContextPool = []; +function getPooledTraverseContext(mapResult, keyPrefix, mapFunction, mapContext) { + if (traverseContextPool.length) { + var traverseContext = traverseContextPool.pop(); + traverseContext.result = mapResult; + traverseContext.keyPrefix = keyPrefix; + traverseContext.func = mapFunction; + traverseContext.context = mapContext; + traverseContext.count = 0; + return traverseContext; + } else { + return { + result: mapResult, + keyPrefix: keyPrefix, + func: mapFunction, + context: mapContext, + count: 0 + }; + } +} + +function releaseTraverseContext(traverseContext) { + traverseContext.result = null; + traverseContext.keyPrefix = null; + traverseContext.func = null; + traverseContext.context = null; + traverseContext.count = 0; + if (traverseContextPool.length < POOL_SIZE) { + traverseContextPool.push(traverseContext); + } +} + +/** + * @param {?*} children Children tree container. + * @param {!string} nameSoFar Name of the key path so far. + * @param {!function} callback Callback to invoke with each child found. + * @param {?*} traverseContext Used to pass information throughout the traversal + * process. + * @return {!number} The number of children in this subtree. + */ +function traverseAllChildrenImpl(children, nameSoFar, callback, traverseContext) { + var type = typeof children; + + if (type === 'undefined' || type === 'boolean') { + // All of the above are perceived as null. + children = null; + } + + var invokeCallback = false; + + if (children === null) { + invokeCallback = true; + } else { + switch (type) { + case 'string': + case 'number': + invokeCallback = true; + break; + case 'object': + switch (children.$$typeof) { + case REACT_ELEMENT_TYPE: + case REACT_CALL_TYPE: + case REACT_RETURN_TYPE: + case REACT_PORTAL_TYPE: + invokeCallback = true; + } + } + } + + if (invokeCallback) { + callback(traverseContext, children, + // If it's the only child, treat the name as if it was wrapped in an array + // so that it's consistent if the number of children grows. + nameSoFar === '' ? SEPARATOR + getComponentKey(children, 0) : nameSoFar); + return 1; + } + + var child; + var nextName; + var subtreeCount = 0; // Count of children found in the current subtree. + var nextNamePrefix = nameSoFar === '' ? SEPARATOR : nameSoFar + SUBSEPARATOR; + + if (Array.isArray(children)) { + for (var i = 0; i < children.length; i++) { + child = children[i]; + nextName = nextNamePrefix + getComponentKey(child, i); + subtreeCount += traverseAllChildrenImpl(child, nextName, callback, traverseContext); + } + } else { + var iteratorFn = getIteratorFn(children); + if (typeof iteratorFn === 'function') { + { + // Warn about using Maps as children + if (iteratorFn === children.entries) { + warning(didWarnAboutMaps, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.%s', ReactDebugCurrentFrame.getStackAddendum()); + didWarnAboutMaps = true; + } + } + + var iterator = iteratorFn.call(children); + var step; + var ii = 0; + while (!(step = iterator.next()).done) { + child = step.value; + nextName = nextNamePrefix + getComponentKey(child, ii++); + subtreeCount += traverseAllChildrenImpl(child, nextName, callback, traverseContext); + } + } else if (type === 'object') { + var addendum = ''; + { + addendum = ' If you meant to render a collection of children, use an array ' + 'instead.' + ReactDebugCurrentFrame.getStackAddendum(); + } + var childrenString = '' + children; + invariant(false, 'Objects are not valid as a React child (found: %s).%s', childrenString === '[object Object]' ? 'object with keys {' + Object.keys(children).join(', ') + '}' : childrenString, addendum); + } + } + + return subtreeCount; +} + +/** + * Traverses children that are typically specified as `props.children`, but + * might also be specified through attributes: + * + * - `traverseAllChildren(this.props.children, ...)` + * - `traverseAllChildren(this.props.leftPanelChildren, ...)` + * + * The `traverseContext` is an optional argument that is passed through the + * entire traversal. It can be used to store accumulations or anything else that + * the callback might find relevant. + * + * @param {?*} children Children tree object. + * @param {!function} callback To invoke upon traversing each child. + * @param {?*} traverseContext Context for traversal. + * @return {!number} The number of children in this subtree. + */ +function traverseAllChildren(children, callback, traverseContext) { + if (children == null) { + return 0; + } + + return traverseAllChildrenImpl(children, '', callback, traverseContext); +} + +/** + * Generate a key string that identifies a component within a set. + * + * @param {*} component A component that could contain a manual key. + * @param {number} index Index that is used if a manual key is not provided. + * @return {string} + */ +function getComponentKey(component, index) { + // Do some typechecking here since we call this blindly. We want to ensure + // that we don't block potential future ES APIs. + if (typeof component === 'object' && component !== null && component.key != null) { + // Explicit key + return escape(component.key); + } + // Implicit key determined by the index in the set + return index.toString(36); +} + +function forEachSingleChild(bookKeeping, child, name) { + var func = bookKeeping.func, + context = bookKeeping.context; + + func.call(context, child, bookKeeping.count++); +} + +/** + * Iterates through children that are typically specified as `props.children`. + * + * See https://reactjs.org/docs/react-api.html#react.children.foreach + * + * The provided forEachFunc(child, index) will be called for each + * leaf child. + * + * @param {?*} children Children tree container. + * @param {function(*, int)} forEachFunc + * @param {*} forEachContext Context for forEachContext. + */ +function forEachChildren(children, forEachFunc, forEachContext) { + if (children == null) { + return children; + } + var traverseContext = getPooledTraverseContext(null, null, forEachFunc, forEachContext); + traverseAllChildren(children, forEachSingleChild, traverseContext); + releaseTraverseContext(traverseContext); +} + +function mapSingleChildIntoContext(bookKeeping, child, childKey) { + var result = bookKeeping.result, + keyPrefix = bookKeeping.keyPrefix, + func = bookKeeping.func, + context = bookKeeping.context; + + + var mappedChild = func.call(context, child, bookKeeping.count++); + if (Array.isArray(mappedChild)) { + mapIntoWithKeyPrefixInternal(mappedChild, result, childKey, emptyFunction.thatReturnsArgument); + } else if (mappedChild != null) { + if (isValidElement(mappedChild)) { + mappedChild = cloneAndReplaceKey(mappedChild, + // Keep both the (mapped) and old keys if they differ, just as + // traverseAllChildren used to do for objects as children + keyPrefix + (mappedChild.key && (!child || child.key !== mappedChild.key) ? escapeUserProvidedKey(mappedChild.key) + '/' : '') + childKey); + } + result.push(mappedChild); + } +} + +function mapIntoWithKeyPrefixInternal(children, array, prefix, func, context) { + var escapedPrefix = ''; + if (prefix != null) { + escapedPrefix = escapeUserProvidedKey(prefix) + '/'; + } + var traverseContext = getPooledTraverseContext(array, escapedPrefix, func, context); + traverseAllChildren(children, mapSingleChildIntoContext, traverseContext); + releaseTraverseContext(traverseContext); +} + +/** + * Maps children that are typically specified as `props.children`. + * + * See https://reactjs.org/docs/react-api.html#react.children.map + * + * The provided mapFunction(child, key, index) will be called for each + * leaf child. + * + * @param {?*} children Children tree container. + * @param {function(*, int)} func The map function. + * @param {*} context Context for mapFunction. + * @return {object} Object containing the ordered map of results. + */ +function mapChildren(children, func, context) { + if (children == null) { + return children; + } + var result = []; + mapIntoWithKeyPrefixInternal(children, result, null, func, context); + return result; +} + +/** + * Count the number of children that are typically specified as + * `props.children`. + * + * See https://reactjs.org/docs/react-api.html#react.children.count + * + * @param {?*} children Children tree container. + * @return {number} The number of children. + */ +function countChildren(children, context) { + return traverseAllChildren(children, emptyFunction.thatReturnsNull, null); +} + +/** + * Flatten a children object (typically specified as `props.children`) and + * return an array with appropriately re-keyed children. + * + * See https://reactjs.org/docs/react-api.html#react.children.toarray + */ +function toArray(children) { + var result = []; + mapIntoWithKeyPrefixInternal(children, result, null, emptyFunction.thatReturnsArgument); + return result; +} + +/** + * Returns the first child in a collection of children and verifies that there + * is only one child in the collection. + * + * See https://reactjs.org/docs/react-api.html#react.children.only + * + * The current implementation of this function assumes that a single child gets + * passed without a wrapper, but the purpose of this helper function is to + * abstract away the particular structure of children. + * + * @param {?object} children Child collection structure. + * @return {ReactElement} The first and only `ReactElement` contained in the + * structure. + */ +function onlyChild(children) { + !isValidElement(children) ? invariant(false, 'React.Children.only expected to receive a single React element child.') : void 0; + return children; +} + +var describeComponentFrame = function (name, source, ownerName) { + return '\n in ' + (name || 'Unknown') + (source ? ' (at ' + source.fileName.replace(/^.*[\\\/]/, '') + ':' + source.lineNumber + ')' : ownerName ? ' (created by ' + ownerName + ')' : ''); +}; + +function getComponentName(fiber) { + var type = fiber.type; + + if (typeof type === 'string') { + return type; + } + if (typeof type === 'function') { + return type.displayName || type.name; + } + return null; +} + +/** + * ReactElementValidator provides a wrapper around a element factory + * which validates the props passed to the element. This is intended to be + * used only in DEV and could be replaced by a static type checker for languages + * that support it. + */ + +{ + var currentlyValidatingElement = null; + + var propTypesMisspellWarningShown = false; + + var getDisplayName = function (element) { + if (element == null) { + return '#empty'; + } else if (typeof element === 'string' || typeof element === 'number') { + return '#text'; + } else if (typeof element.type === 'string') { + return element.type; + } else if (element.type === REACT_FRAGMENT_TYPE) { + return 'React.Fragment'; + } else { + return element.type.displayName || element.type.name || 'Unknown'; + } + }; + + var getStackAddendum = function () { + var stack = ''; + if (currentlyValidatingElement) { + var name = getDisplayName(currentlyValidatingElement); + var owner = currentlyValidatingElement._owner; + stack += describeComponentFrame(name, currentlyValidatingElement._source, owner && getComponentName(owner)); + } + stack += ReactDebugCurrentFrame.getStackAddendum() || ''; + return stack; + }; + + var VALID_FRAGMENT_PROPS = new Map([['children', true], ['key', true]]); +} + +function getDeclarationErrorAddendum() { + if (ReactCurrentOwner.current) { + var name = getComponentName(ReactCurrentOwner.current); + if (name) { + return '\n\nCheck the render method of `' + name + '`.'; + } + } + return ''; +} + +function getSourceInfoErrorAddendum(elementProps) { + if (elementProps !== null && elementProps !== undefined && elementProps.__source !== undefined) { + var source = elementProps.__source; + var fileName = source.fileName.replace(/^.*[\\\/]/, ''); + var lineNumber = source.lineNumber; + return '\n\nCheck your code at ' + fileName + ':' + lineNumber + '.'; + } + return ''; +} + +/** + * Warn if there's no key explicitly set on dynamic arrays of children or + * object keys are not valid. This allows us to keep track of children between + * updates. + */ +var ownerHasKeyUseWarning = {}; + +function getCurrentComponentErrorInfo(parentType) { + var info = getDeclarationErrorAddendum(); + + if (!info) { + var parentName = typeof parentType === 'string' ? parentType : parentType.displayName || parentType.name; + if (parentName) { + info = '\n\nCheck the top-level render call using <' + parentName + '>.'; + } + } + return info; +} + +/** + * Warn if the element doesn't have an explicit key assigned to it. + * This element is in an array. The array could grow and shrink or be + * reordered. All children that haven't already been validated are required to + * have a "key" property assigned to it. Error statuses are cached so a warning + * will only be shown once. + * + * @internal + * @param {ReactElement} element Element that requires a key. + * @param {*} parentType element's parent's type. + */ +function validateExplicitKey(element, parentType) { + if (!element._store || element._store.validated || element.key != null) { + return; + } + element._store.validated = true; + + var currentComponentErrorInfo = getCurrentComponentErrorInfo(parentType); + if (ownerHasKeyUseWarning[currentComponentErrorInfo]) { + return; + } + ownerHasKeyUseWarning[currentComponentErrorInfo] = true; + + // Usually the current owner is the offender, but if it accepts children as a + // property, it may be the creator of the child that's responsible for + // assigning it a key. + var childOwner = ''; + if (element && element._owner && element._owner !== ReactCurrentOwner.current) { + // Give the component that originally created this child. + childOwner = ' It was passed a child from ' + getComponentName(element._owner) + '.'; + } + + currentlyValidatingElement = element; + { + warning(false, 'Each child in an array or iterator should have a unique "key" prop.' + '%s%s See https://fb.me/react-warning-keys for more information.%s', currentComponentErrorInfo, childOwner, getStackAddendum()); + } + currentlyValidatingElement = null; +} + +/** + * Ensure that every element either is passed in a static location, in an + * array with an explicit keys property defined, or in an object literal + * with valid key property. + * + * @internal + * @param {ReactNode} node Statically passed child of any type. + * @param {*} parentType node's parent's type. + */ +function validateChildKeys(node, parentType) { + if (typeof node !== 'object') { + return; + } + if (Array.isArray(node)) { + for (var i = 0; i < node.length; i++) { + var child = node[i]; + if (isValidElement(child)) { + validateExplicitKey(child, parentType); + } + } + } else if (isValidElement(node)) { + // This element was passed in a valid location. + if (node._store) { + node._store.validated = true; + } + } else if (node) { + var iteratorFn = getIteratorFn(node); + if (typeof iteratorFn === 'function') { + // Entry iterators used to provide implicit keys, + // but now we print a separate warning for them later. + if (iteratorFn !== node.entries) { + var iterator = iteratorFn.call(node); + var step; + while (!(step = iterator.next()).done) { + if (isValidElement(step.value)) { + validateExplicitKey(step.value, parentType); + } + } + } + } + } +} + +/** + * Given an element, validate that its props follow the propTypes definition, + * provided by the type. + * + * @param {ReactElement} element + */ +function validatePropTypes(element) { + var componentClass = element.type; + if (typeof componentClass !== 'function') { + return; + } + var name = componentClass.displayName || componentClass.name; + var propTypes = componentClass.propTypes; + if (propTypes) { + currentlyValidatingElement = element; + checkPropTypes(propTypes, element.props, 'prop', name, getStackAddendum); + currentlyValidatingElement = null; + } else if (componentClass.PropTypes !== undefined && !propTypesMisspellWarningShown) { + propTypesMisspellWarningShown = true; + warning(false, 'Component %s declared `PropTypes` instead of `propTypes`. Did you misspell the property assignment?', name || 'Unknown'); + } + if (typeof componentClass.getDefaultProps === 'function') { + warning(componentClass.getDefaultProps.isReactClassApproved, 'getDefaultProps is only used on classic React.createClass ' + 'definitions. Use a static property named `defaultProps` instead.'); + } +} + +/** + * Given a fragment, validate that it can only be provided with fragment props + * @param {ReactElement} fragment + */ +function validateFragmentProps(fragment) { + currentlyValidatingElement = fragment; + + var _iteratorNormalCompletion = true; + var _didIteratorError = false; + var _iteratorError = undefined; + + try { + for (var _iterator = Object.keys(fragment.props)[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) { + var key = _step.value; + + if (!VALID_FRAGMENT_PROPS.has(key)) { + warning(false, 'Invalid prop `%s` supplied to `React.Fragment`. ' + 'React.Fragment can only have `key` and `children` props.%s', key, getStackAddendum()); + break; + } + } + } catch (err) { + _didIteratorError = true; + _iteratorError = err; + } finally { + try { + if (!_iteratorNormalCompletion && _iterator['return']) { + _iterator['return'](); + } + } finally { + if (_didIteratorError) { + throw _iteratorError; + } + } + } + + if (fragment.ref !== null) { + warning(false, 'Invalid attribute `ref` supplied to `React.Fragment`.%s', getStackAddendum()); + } + + currentlyValidatingElement = null; +} + +function createElementWithValidation(type, props, children) { + var validType = typeof type === 'string' || typeof type === 'function' || typeof type === 'symbol' || typeof type === 'number'; + // We warn in this case but don't throw. We expect the element creation to + // succeed and there will likely be errors in render. + if (!validType) { + var info = ''; + if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) { + info += ' You likely forgot to export your component from the file ' + "it's defined in, or you might have mixed up default and named imports."; + } + + var sourceInfo = getSourceInfoErrorAddendum(props); + if (sourceInfo) { + info += sourceInfo; + } else { + info += getDeclarationErrorAddendum(); + } + + info += getStackAddendum() || ''; + + warning(false, 'React.createElement: type is invalid -- expected a string (for ' + 'built-in components) or a class/function (for composite ' + 'components) but got: %s.%s', type == null ? type : typeof type, info); + } + + var element = createElement.apply(this, arguments); + + // The result can be nullish if a mock or a custom function is used. + // TODO: Drop this when these are no longer allowed as the type argument. + if (element == null) { + return element; + } + + // Skip key warning if the type isn't valid since our key validation logic + // doesn't expect a non-string/function type and can throw confusing errors. + // We don't want exception behavior to differ between dev and prod. + // (Rendering will throw with a helpful message and as soon as the type is + // fixed, the key warnings will appear.) + if (validType) { + for (var i = 2; i < arguments.length; i++) { + validateChildKeys(arguments[i], type); + } + } + + if (typeof type === 'symbol' && type === REACT_FRAGMENT_TYPE) { + validateFragmentProps(element); + } else { + validatePropTypes(element); + } + + return element; +} + +function createFactoryWithValidation(type) { + var validatedFactory = createElementWithValidation.bind(null, type); + // Legacy hook TODO: Warn if this is accessed + validatedFactory.type = type; + + { + Object.defineProperty(validatedFactory, 'type', { + enumerable: false, + get: function () { + lowPriorityWarning$1(false, 'Factory.type is deprecated. Access the class directly ' + 'before passing it to createFactory.'); + Object.defineProperty(this, 'type', { + value: type + }); + return type; + } + }); + } + + return validatedFactory; +} + +function cloneElementWithValidation(element, props, children) { + var newElement = cloneElement.apply(this, arguments); + for (var i = 2; i < arguments.length; i++) { + validateChildKeys(arguments[i], newElement.type); + } + validatePropTypes(newElement); + return newElement; +} + +var React = { + Children: { + map: mapChildren, + forEach: forEachChildren, + count: countChildren, + toArray: toArray, + only: onlyChild + }, + + Component: Component, + PureComponent: PureComponent, + unstable_AsyncComponent: AsyncComponent, + + Fragment: REACT_FRAGMENT_TYPE, + + createElement: createElementWithValidation, + cloneElement: cloneElementWithValidation, + createFactory: createFactoryWithValidation, + isValidElement: isValidElement, + + version: ReactVersion, + + __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: { + ReactCurrentOwner: ReactCurrentOwner, + // Used by renderers to avoid bundling object-assign twice in UMD bundles: + assign: _assign + } +}; + +{ + _assign(React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED, { + // These should not be included in production. + ReactDebugCurrentFrame: ReactDebugCurrentFrame, + // Shim for React DOM 16.0.0 which still destructured (but not used) this. + // TODO: remove in React 17.0. + ReactComponentTreeHook: {} + }); +} + + + +var React$2 = Object.freeze({ + default: React +}); + +var React$3 = ( React$2 && React ) || React$2; + +// TODO: decide on the top-level export form. +// This is hacky but makes it work with both Rollup and Jest. +var react = React$3['default'] ? React$3['default'] : React$3; + +module.exports = react; + })(); +} + +/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(0))) + +/***/ }), +/* 17 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/** + * Copyright (c) 2013-present, Facebook, Inc. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + */ + + + +var ReactPropTypesSecret = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED'; + +module.exports = ReactPropTypesSecret; + + +/***/ }), +/* 18 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/* WEBPACK VAR INJECTION */(function(process) { + +function checkDCE() { + /* global __REACT_DEVTOOLS_GLOBAL_HOOK__ */ + if ( + typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ === 'undefined' || + typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.checkDCE !== 'function' + ) { + return; + } + if (process.env.NODE_ENV !== 'production') { + // This branch is unreachable because this function is only called + // in production, but the condition is true only in development. + // Therefore if the branch is still here, dead code elimination wasn't + // properly applied. + // Don't change the message. React DevTools relies on it. Also make sure + // this message doesn't occur elsewhere in this function, or it will cause + // a false positive. + throw new Error('^_^'); + } + try { + // Verify that the code above has been dead code eliminated (DCE'd). + __REACT_DEVTOOLS_GLOBAL_HOOK__.checkDCE(checkDCE); + } catch (err) { + // DevTools shouldn't crash React, no matter what. + // We should still report in case we break this code. + console.error(err); + } +} + +if (process.env.NODE_ENV === 'production') { + // DCE check should happen before ReactDOM bundle executes so that + // DevTools can report bad minification during injection. + checkDCE(); + module.exports = __webpack_require__(19); +} else { + module.exports = __webpack_require__(22); +} + +/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(0))) + +/***/ }), +/* 19 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/** @license React v16.2.0 + * react-dom.production.min.js + * + * Copyright (c) 2013-present, Facebook, 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properties.hasOwnProperty(name) ? properties[name] : null; +} + +function shouldAttributeAcceptBooleanValue(name) { + if (isReservedProp(name)) { + return true; + } + var propertyInfo = getPropertyInfo(name); + if (propertyInfo) { + return propertyInfo.hasBooleanValue || propertyInfo.hasStringBooleanValue || propertyInfo.hasOverloadedBooleanValue; + } + var prefix = name.toLowerCase().slice(0, 5); + return prefix === 'data-' || prefix === 'aria-'; +} + +/** + * Checks to see if a property name is within the list of properties + * reserved for internal React operations. These properties should + * not be set on an HTML element. + * + * @private + * @param {string} name + * @return {boolean} If the name is within reserved props + */ +function isReservedProp(name) { + return RESERVED_PROPS.hasOwnProperty(name); +} + +var injection = DOMPropertyInjection; + +var MUST_USE_PROPERTY = injection.MUST_USE_PROPERTY; +var HAS_BOOLEAN_VALUE = injection.HAS_BOOLEAN_VALUE; +var HAS_NUMERIC_VALUE = injection.HAS_NUMERIC_VALUE; +var HAS_POSITIVE_NUMERIC_VALUE = injection.HAS_POSITIVE_NUMERIC_VALUE; +var HAS_OVERLOADED_BOOLEAN_VALUE = injection.HAS_OVERLOADED_BOOLEAN_VALUE; +var HAS_STRING_BOOLEAN_VALUE = injection.HAS_STRING_BOOLEAN_VALUE; + +var HTMLDOMPropertyConfig = { + // When adding attributes to this list, be sure to also add them to + // the `possibleStandardNames` module to ensure casing and incorrect + // name warnings. + Properties: { + allowFullScreen: HAS_BOOLEAN_VALUE, + // specifies target context for links with `preload` type + async: HAS_BOOLEAN_VALUE, + // Note: there is a special case that prevents it from being written to the DOM + // on the client side because the browsers are inconsistent. Instead we call focus(). + autoFocus: HAS_BOOLEAN_VALUE, + autoPlay: HAS_BOOLEAN_VALUE, + capture: HAS_OVERLOADED_BOOLEAN_VALUE, + checked: MUST_USE_PROPERTY | HAS_BOOLEAN_VALUE, + cols: HAS_POSITIVE_NUMERIC_VALUE, + contentEditable: HAS_STRING_BOOLEAN_VALUE, + controls: HAS_BOOLEAN_VALUE, + 'default': HAS_BOOLEAN_VALUE, + defer: HAS_BOOLEAN_VALUE, + disabled: HAS_BOOLEAN_VALUE, + download: HAS_OVERLOADED_BOOLEAN_VALUE, + draggable: HAS_STRING_BOOLEAN_VALUE, + formNoValidate: HAS_BOOLEAN_VALUE, + hidden: HAS_BOOLEAN_VALUE, + loop: HAS_BOOLEAN_VALUE, + // Caution; `option.selected` is not updated if `select.multiple` is + // disabled with `removeAttribute`. + multiple: MUST_USE_PROPERTY | HAS_BOOLEAN_VALUE, + muted: MUST_USE_PROPERTY | HAS_BOOLEAN_VALUE, + noValidate: HAS_BOOLEAN_VALUE, + open: HAS_BOOLEAN_VALUE, + playsInline: HAS_BOOLEAN_VALUE, + readOnly: HAS_BOOLEAN_VALUE, + required: HAS_BOOLEAN_VALUE, + reversed: HAS_BOOLEAN_VALUE, + rows: HAS_POSITIVE_NUMERIC_VALUE, + rowSpan: HAS_NUMERIC_VALUE, + scoped: HAS_BOOLEAN_VALUE, + seamless: HAS_BOOLEAN_VALUE, + selected: MUST_USE_PROPERTY | HAS_BOOLEAN_VALUE, + size: HAS_POSITIVE_NUMERIC_VALUE, + start: HAS_NUMERIC_VALUE, + // support for projecting regular DOM Elements via V1 named slots ( shadow dom ) + span: HAS_POSITIVE_NUMERIC_VALUE, + spellCheck: HAS_STRING_BOOLEAN_VALUE, + // Style must be explicitly set in the attribute list. React components + // expect a style object + style: 0, + // Keep it in the whitelist because it is case-sensitive for SVG. + tabIndex: 0, + // itemScope is for for Microdata support. + // See http://schema.org/docs/gs.html + itemScope: HAS_BOOLEAN_VALUE, + // These attributes must stay in the white-list because they have + // different attribute names (see DOMAttributeNames below) + acceptCharset: 0, + className: 0, + htmlFor: 0, + httpEquiv: 0, + // Attributes with mutation methods must be specified in the whitelist + // Set the string boolean flag to allow the behavior + value: HAS_STRING_BOOLEAN_VALUE + }, + DOMAttributeNames: { + acceptCharset: 'accept-charset', + className: 'class', + htmlFor: 'for', + httpEquiv: 'http-equiv' + }, + DOMMutationMethods: { + value: function (node, value) { + if (value == null) { + return node.removeAttribute('value'); + } + + // Number inputs get special treatment due to some edge cases in + // Chrome. Let everything else assign the value attribute as normal. + // https://github.com/facebook/react/issues/7253#issuecomment-236074326 + if (node.type !== 'number' || node.hasAttribute('value') === false) { + node.setAttribute('value', '' + value); + } else if (node.validity && !node.validity.badInput && node.ownerDocument.activeElement !== node) { + // Don't assign an attribute if validation reports bad + // input. Chrome will clear the value. Additionally, don't + // operate on inputs that have focus, otherwise Chrome might + // strip off trailing decimal places and cause the user's + // cursor position to jump to the beginning of the input. + // + // In ReactDOMInput, we have an onBlur event that will trigger + // this function again when focus is lost. + node.setAttribute('value', '' + value); + } + } + } +}; + +var HAS_STRING_BOOLEAN_VALUE$1 = injection.HAS_STRING_BOOLEAN_VALUE; + + +var NS = { + xlink: 'http://www.w3.org/1999/xlink', + xml: 'http://www.w3.org/XML/1998/namespace' +}; + +/** + * This is a list of all SVG attributes that need special casing, + * namespacing, or boolean value assignment. + * + * When adding attributes to this list, be sure to also add them to + * the `possibleStandardNames` module to ensure casing and incorrect + * name warnings. + * + * SVG Attributes List: + * https://www.w3.org/TR/SVG/attindex.html + * SMIL Spec: + * https://www.w3.org/TR/smil + */ +var ATTRS = ['accent-height', 'alignment-baseline', 'arabic-form', 'baseline-shift', 'cap-height', 'clip-path', 'clip-rule', 'color-interpolation', 'color-interpolation-filters', 'color-profile', 'color-rendering', 'dominant-baseline', 'enable-background', 'fill-opacity', 'fill-rule', 'flood-color', 'flood-opacity', 'font-family', 'font-size', 'font-size-adjust', 'font-stretch', 'font-style', 'font-variant', 'font-weight', 'glyph-name', 'glyph-orientation-horizontal', 'glyph-orientation-vertical', 'horiz-adv-x', 'horiz-origin-x', 'image-rendering', 'letter-spacing', 'lighting-color', 'marker-end', 'marker-mid', 'marker-start', 'overline-position', 'overline-thickness', 'paint-order', 'panose-1', 'pointer-events', 'rendering-intent', 'shape-rendering', 'stop-color', 'stop-opacity', 'strikethrough-position', 'strikethrough-thickness', 'stroke-dasharray', 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', 'stroke-miterlimit', 'stroke-opacity', 'stroke-width', 'text-anchor', 'text-decoration', 'text-rendering', 'underline-position', 'underline-thickness', 'unicode-bidi', 'unicode-range', 'units-per-em', 'v-alphabetic', 'v-hanging', 'v-ideographic', 'v-mathematical', 'vector-effect', 'vert-adv-y', 'vert-origin-x', 'vert-origin-y', 'word-spacing', 'writing-mode', 'x-height', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xmlns:xlink', 'xml:lang', 'xml:space']; + +var SVGDOMPropertyConfig = { + Properties: { + autoReverse: HAS_STRING_BOOLEAN_VALUE$1, + externalResourcesRequired: HAS_STRING_BOOLEAN_VALUE$1, + preserveAlpha: HAS_STRING_BOOLEAN_VALUE$1 + }, + DOMAttributeNames: { + autoReverse: 'autoReverse', + externalResourcesRequired: 'externalResourcesRequired', + preserveAlpha: 'preserveAlpha' + }, + DOMAttributeNamespaces: { + xlinkActuate: NS.xlink, + xlinkArcrole: NS.xlink, + xlinkHref: NS.xlink, + xlinkRole: NS.xlink, + xlinkShow: NS.xlink, + xlinkTitle: NS.xlink, + xlinkType: NS.xlink, + xmlBase: NS.xml, + xmlLang: NS.xml, + xmlSpace: NS.xml + } +}; + +var CAMELIZE = /[\-\:]([a-z])/g; +var capitalize = function (token) { + return token[1].toUpperCase(); +}; + +ATTRS.forEach(function (original) { + var reactName = original.replace(CAMELIZE, capitalize); + + SVGDOMPropertyConfig.Properties[reactName] = 0; + SVGDOMPropertyConfig.DOMAttributeNames[reactName] = original; +}); + +injection.injectDOMPropertyConfig(HTMLDOMPropertyConfig); +injection.injectDOMPropertyConfig(SVGDOMPropertyConfig); + +var ReactErrorUtils = { + // Used by Fiber to simulate a try-catch. + _caughtError: null, + _hasCaughtError: false, + + // Used by event system to capture/rethrow the first error. + _rethrowError: null, + _hasRethrowError: false, + + injection: { + injectErrorUtils: function (injectedErrorUtils) { + !(typeof injectedErrorUtils.invokeGuardedCallback === 'function') ? invariant(false, 'Injected invokeGuardedCallback() must be a function.') : void 0; + invokeGuardedCallback = injectedErrorUtils.invokeGuardedCallback; + } + }, + + /** + * Call a function while guarding against errors that happens within it. + * Returns an error if it throws, otherwise null. + * + * In production, this is implemented using a try-catch. The reason we don't + * use a try-catch directly is so that we can swap out a different + * implementation in DEV mode. + * + * @param {String} name of the guard to use for logging or debugging + * @param {Function} func The function to invoke + * @param {*} context The context to use when calling the function + * @param {...*} args Arguments for function + */ + invokeGuardedCallback: function (name, func, context, a, b, c, d, e, f) { + invokeGuardedCallback.apply(ReactErrorUtils, arguments); + }, + + /** + * Same as invokeGuardedCallback, but instead of returning an error, it stores + * it in a global so it can be rethrown by `rethrowCaughtError` later. + * TODO: See if _caughtError and _rethrowError can be unified. + * + * @param {String} name of the guard to use for logging or debugging + * @param {Function} func The function to invoke + * @param {*} context The context to use when calling the function + * @param {...*} args Arguments for function + */ + invokeGuardedCallbackAndCatchFirstError: function (name, func, context, a, b, c, d, e, f) { + ReactErrorUtils.invokeGuardedCallback.apply(this, arguments); + if (ReactErrorUtils.hasCaughtError()) { + var error = ReactErrorUtils.clearCaughtError(); + if (!ReactErrorUtils._hasRethrowError) { + ReactErrorUtils._hasRethrowError = true; + ReactErrorUtils._rethrowError = error; + } + } + }, + + /** + * During execution of guarded functions we will capture the first error which + * we will rethrow to be handled by the top level error handler. + */ + rethrowCaughtError: function () { + return rethrowCaughtError.apply(ReactErrorUtils, arguments); + }, + + hasCaughtError: function () { + return ReactErrorUtils._hasCaughtError; + }, + + clearCaughtError: function () { + if (ReactErrorUtils._hasCaughtError) { + var error = ReactErrorUtils._caughtError; + ReactErrorUtils._caughtError = null; + ReactErrorUtils._hasCaughtError = false; + return error; + } else { + invariant(false, 'clearCaughtError was called but no error was captured. This error is likely caused by a bug in React. Please file an issue.'); + } + } +}; + +var invokeGuardedCallback = function (name, func, context, a, b, c, d, e, f) { + ReactErrorUtils._hasCaughtError = false; + ReactErrorUtils._caughtError = null; + var funcArgs = Array.prototype.slice.call(arguments, 3); + try { + func.apply(context, funcArgs); + } catch (error) { + ReactErrorUtils._caughtError = error; + ReactErrorUtils._hasCaughtError = true; + } +}; + +{ + // In DEV mode, we swap out invokeGuardedCallback for a special version + // that plays more nicely with the browser's DevTools. The idea is to preserve + // "Pause on exceptions" behavior. Because React wraps all user-provided + // functions in invokeGuardedCallback, and the production version of + // invokeGuardedCallback uses a try-catch, all user exceptions are treated + // like caught exceptions, and the DevTools won't pause unless the developer + // takes the extra step of enabling pause on caught exceptions. This is + // untintuitive, though, because even though React has caught the error, from + // the developer's perspective, the error is uncaught. + // + // To preserve the expected "Pause on exceptions" behavior, we don't use a + // try-catch in DEV. Instead, we synchronously dispatch a fake event to a fake + // DOM node, and call the user-provided callback from inside an event handler + // for that fake event. If the callback throws, the error is "captured" using + // a global event handler. But because the error happens in a different + // event loop context, it does not interrupt the normal program flow. + // Effectively, this gives us try-catch behavior without actually using + // try-catch. Neat! + + // Check that the browser supports the APIs we need to implement our special + // DEV version of invokeGuardedCallback + if (typeof window !== 'undefined' && typeof window.dispatchEvent === 'function' && typeof document !== 'undefined' && typeof document.createEvent === 'function') { + var fakeNode = document.createElement('react'); + + var invokeGuardedCallbackDev = function (name, func, context, a, b, c, d, e, f) { + // Keeps track of whether the user-provided callback threw an error. We + // set this to true at the beginning, then set it to false right after + // calling the function. If the function errors, `didError` will never be + // set to false. This strategy works even if the browser is flaky and + // fails to call our global error handler, because it doesn't rely on + // the error event at all. + var didError = true; + + // Create an event handler for our fake event. We will synchronously + // dispatch our fake event using `dispatchEvent`. Inside the handler, we + // call the user-provided callback. + var funcArgs = Array.prototype.slice.call(arguments, 3); + function callCallback() { + // We immediately remove the callback from event listeners so that + // nested `invokeGuardedCallback` calls do not clash. Otherwise, a + // nested call would trigger the fake event handlers of any call higher + // in the stack. + fakeNode.removeEventListener(evtType, callCallback, false); + func.apply(context, funcArgs); + didError = false; + } + + // Create a global error event handler. We use this to capture the value + // that was thrown. It's possible that this error handler will fire more + // than once; for example, if non-React code also calls `dispatchEvent` + // and a handler for that event throws. We should be resilient to most of + // those cases. Even if our error event handler fires more than once, the + // last error event is always used. If the callback actually does error, + // we know that the last error event is the correct one, because it's not + // possible for anything else to have happened in between our callback + // erroring and the code that follows the `dispatchEvent` call below. If + // the callback doesn't error, but the error event was fired, we know to + // ignore it because `didError` will be false, as described above. + var error = void 0; + // Use this to track whether the error event is ever called. + var didSetError = false; + var isCrossOriginError = false; + + function onError(event) { + error = event.error; + didSetError = true; + if (error === null && event.colno === 0 && event.lineno === 0) { + isCrossOriginError = true; + } + } + + // Create a fake event type. + var evtType = 'react-' + (name ? name : 'invokeguardedcallback'); + + // Attach our event handlers + window.addEventListener('error', onError); + fakeNode.addEventListener(evtType, callCallback, false); + + // Synchronously dispatch our fake event. If the user-provided function + // errors, it will trigger our global error handler. + var evt = document.createEvent('Event'); + evt.initEvent(evtType, false, false); + fakeNode.dispatchEvent(evt); + + if (didError) { + if (!didSetError) { + // The callback errored, but the error event never fired. + error = new Error('An error was thrown inside one of your components, but React ' + "doesn't know what it was. This is likely due to browser " + 'flakiness. React does its best to preserve the "Pause on ' + 'exceptions" behavior of the DevTools, which requires some ' + "DEV-mode only tricks. It's possible that these don't work in " + 'your browser. Try triggering the error in production mode, ' + 'or switching to a modern browser. If you suspect that this is ' + 'actually an issue with React, please file an issue.'); + } else if (isCrossOriginError) { + error = new Error("A cross-origin error was thrown. React doesn't have access to " + 'the actual error object in development. ' + 'See https://fb.me/react-crossorigin-error for more information.'); + } + ReactErrorUtils._hasCaughtError = true; + ReactErrorUtils._caughtError = error; + } else { + ReactErrorUtils._hasCaughtError = false; + ReactErrorUtils._caughtError = null; + } + + // Remove our event listeners + window.removeEventListener('error', onError); + }; + + invokeGuardedCallback = invokeGuardedCallbackDev; + } +} + +var rethrowCaughtError = function () { + if (ReactErrorUtils._hasRethrowError) { + var error = ReactErrorUtils._rethrowError; + ReactErrorUtils._rethrowError = null; + ReactErrorUtils._hasRethrowError = false; + throw error; + } +}; + +/** + * Injectable ordering of event plugins. + */ +var eventPluginOrder = null; + +/** + * Injectable mapping from names to event plugin modules. + */ +var namesToPlugins = {}; + +/** + * Recomputes the plugin list using the injected plugins and plugin ordering. + * + * @private + */ +function recomputePluginOrdering() { + if (!eventPluginOrder) { + // Wait until an `eventPluginOrder` is injected. + return; + } + for (var pluginName in namesToPlugins) { + var pluginModule = namesToPlugins[pluginName]; + var pluginIndex = eventPluginOrder.indexOf(pluginName); + !(pluginIndex > -1) ? invariant(false, 'EventPluginRegistry: Cannot inject event plugins that do not exist in the plugin ordering, `%s`.', pluginName) : void 0; + if (plugins[pluginIndex]) { + continue; + } + !pluginModule.extractEvents ? invariant(false, 'EventPluginRegistry: Event plugins must implement an `extractEvents` method, but `%s` does not.', pluginName) : void 0; + plugins[pluginIndex] = pluginModule; + var publishedEvents = pluginModule.eventTypes; + for (var eventName in publishedEvents) { + !publishEventForPlugin(publishedEvents[eventName], pluginModule, eventName) ? invariant(false, 'EventPluginRegistry: Failed to publish event `%s` for plugin `%s`.', eventName, pluginName) : void 0; + } + } +} + +/** + * Publishes an event so that it can be dispatched by the supplied plugin. + * + * @param {object} dispatchConfig Dispatch configuration for the event. + * @param {object} PluginModule Plugin publishing the event. + * @return {boolean} True if the event was successfully published. + * @private + */ +function publishEventForPlugin(dispatchConfig, pluginModule, eventName) { + !!eventNameDispatchConfigs.hasOwnProperty(eventName) ? invariant(false, 'EventPluginHub: More than one plugin attempted to publish the same event name, `%s`.', eventName) : void 0; + eventNameDispatchConfigs[eventName] = dispatchConfig; + + var phasedRegistrationNames = dispatchConfig.phasedRegistrationNames; + if (phasedRegistrationNames) { + for (var phaseName in phasedRegistrationNames) { + if (phasedRegistrationNames.hasOwnProperty(phaseName)) { + var phasedRegistrationName = phasedRegistrationNames[phaseName]; + publishRegistrationName(phasedRegistrationName, pluginModule, eventName); + } + } + return true; + } else if (dispatchConfig.registrationName) { + publishRegistrationName(dispatchConfig.registrationName, pluginModule, eventName); + return true; + } + return false; +} + +/** + * Publishes a registration name that is used to identify dispatched events. + * + * @param {string} registrationName Registration name to add. + * @param {object} PluginModule Plugin publishing the event. + * @private + */ +function publishRegistrationName(registrationName, pluginModule, eventName) { + !!registrationNameModules[registrationName] ? invariant(false, 'EventPluginHub: More than one plugin attempted to publish the same registration name, `%s`.', registrationName) : void 0; + registrationNameModules[registrationName] = pluginModule; + registrationNameDependencies[registrationName] = pluginModule.eventTypes[eventName].dependencies; + + { + var lowerCasedName = registrationName.toLowerCase(); + possibleRegistrationNames[lowerCasedName] = registrationName; + + if (registrationName === 'onDoubleClick') { + possibleRegistrationNames.ondblclick = registrationName; + } + } +} + +/** + * Registers plugins so that they can extract and dispatch events. + * + * @see {EventPluginHub} + */ + +/** + * Ordered list of injected plugins. + */ +var plugins = []; + +/** + * Mapping from event name to dispatch config + */ +var eventNameDispatchConfigs = {}; + +/** + * Mapping from registration name to plugin module + */ +var registrationNameModules = {}; + +/** + * Mapping from registration name to event name + */ +var registrationNameDependencies = {}; + +/** + * Mapping from lowercase registration names to the properly cased version, + * used to warn in the case of missing event handlers. Available + * only in true. + * @type {Object} + */ +var possibleRegistrationNames = {}; +// Trust the developer to only use possibleRegistrationNames in true + +/** + * Injects an ordering of plugins (by plugin name). This allows the ordering + * to be decoupled from injection of the actual plugins so that ordering is + * always deterministic regardless of packaging, on-the-fly injection, etc. + * + * @param {array} InjectedEventPluginOrder + * @internal + * @see {EventPluginHub.injection.injectEventPluginOrder} + */ +function injectEventPluginOrder(injectedEventPluginOrder) { + !!eventPluginOrder ? invariant(false, 'EventPluginRegistry: Cannot inject event plugin ordering more than once. You are likely trying to load more than one copy of React.') : void 0; + // Clone the ordering so it cannot be dynamically mutated. + eventPluginOrder = Array.prototype.slice.call(injectedEventPluginOrder); + recomputePluginOrdering(); +} + +/** + * Injects plugins to be used by `EventPluginHub`. The plugin names must be + * in the ordering injected by `injectEventPluginOrder`. + * + * Plugins can be injected as part of page initialization or on-the-fly. + * + * @param {object} injectedNamesToPlugins Map from names to plugin modules. + * @internal + * @see {EventPluginHub.injection.injectEventPluginsByName} + */ +function injectEventPluginsByName(injectedNamesToPlugins) { + var isOrderingDirty = false; + for (var pluginName in injectedNamesToPlugins) { + if (!injectedNamesToPlugins.hasOwnProperty(pluginName)) { + continue; + } + var pluginModule = injectedNamesToPlugins[pluginName]; + if (!namesToPlugins.hasOwnProperty(pluginName) || namesToPlugins[pluginName] !== pluginModule) { + !!namesToPlugins[pluginName] ? invariant(false, 'EventPluginRegistry: Cannot inject two different event plugins using the same name, `%s`.', pluginName) : void 0; + namesToPlugins[pluginName] = pluginModule; + isOrderingDirty = true; + } + } + if (isOrderingDirty) { + recomputePluginOrdering(); + } +} + +var EventPluginRegistry = Object.freeze({ + plugins: plugins, + eventNameDispatchConfigs: eventNameDispatchConfigs, + registrationNameModules: registrationNameModules, + registrationNameDependencies: registrationNameDependencies, + possibleRegistrationNames: possibleRegistrationNames, + injectEventPluginOrder: injectEventPluginOrder, + injectEventPluginsByName: injectEventPluginsByName +}); + +var getFiberCurrentPropsFromNode = null; +var getInstanceFromNode = null; +var getNodeFromInstance = null; + +var injection$2 = { + injectComponentTree: function (Injected) { + getFiberCurrentPropsFromNode = Injected.getFiberCurrentPropsFromNode; + getInstanceFromNode = Injected.getInstanceFromNode; + getNodeFromInstance = Injected.getNodeFromInstance; + + { + warning(getNodeFromInstance && getInstanceFromNode, 'EventPluginUtils.injection.injectComponentTree(...): Injected ' + 'module is missing getNodeFromInstance or getInstanceFromNode.'); + } + } +}; + + + + + + +var validateEventDispatches; +{ + validateEventDispatches = function (event) { + var dispatchListeners = event._dispatchListeners; + var dispatchInstances = event._dispatchInstances; + + var listenersIsArr = Array.isArray(dispatchListeners); + var listenersLen = listenersIsArr ? dispatchListeners.length : dispatchListeners ? 1 : 0; + + var instancesIsArr = Array.isArray(dispatchInstances); + var instancesLen = instancesIsArr ? dispatchInstances.length : dispatchInstances ? 1 : 0; + + warning(instancesIsArr === listenersIsArr && instancesLen === listenersLen, 'EventPluginUtils: Invalid `event`.'); + }; +} + +/** + * Dispatch the event to the listener. + * @param {SyntheticEvent} event SyntheticEvent to handle + * @param {boolean} simulated If the event is simulated (changes exn behavior) + * @param {function} listener Application-level callback + * @param {*} inst Internal component instance + */ +function executeDispatch(event, simulated, listener, inst) { + var type = event.type || 'unknown-event'; + event.currentTarget = getNodeFromInstance(inst); + ReactErrorUtils.invokeGuardedCallbackAndCatchFirstError(type, listener, undefined, event); + event.currentTarget = null; +} + +/** + * Standard/simple iteration through an event's collected dispatches. + */ +function executeDispatchesInOrder(event, simulated) { + var dispatchListeners = event._dispatchListeners; + var dispatchInstances = event._dispatchInstances; + { + validateEventDispatches(event); + } + if (Array.isArray(dispatchListeners)) { + for (var i = 0; i < dispatchListeners.length; i++) { + if (event.isPropagationStopped()) { + break; + } + // Listeners and Instances are two parallel arrays that are always in sync. + executeDispatch(event, simulated, dispatchListeners[i], dispatchInstances[i]); + } + } else if (dispatchListeners) { + executeDispatch(event, simulated, dispatchListeners, dispatchInstances); + } + event._dispatchListeners = null; + event._dispatchInstances = null; +} + +/** + * @see executeDispatchesInOrderStopAtTrueImpl + */ + + +/** + * Execution of a "direct" dispatch - there must be at most one dispatch + * accumulated on the event or it is considered an error. It doesn't really make + * sense for an event with multiple dispatches (bubbled) to keep track of the + * return values at each dispatch execution, but it does tend to make sense when + * dealing with "direct" dispatches. + * + * @return {*} The return value of executing the single dispatch. + */ + + +/** + * @param {SyntheticEvent} event + * @return {boolean} True iff number of dispatches accumulated is greater than 0. + */ + +/** + * Accumulates items that must not be null or undefined into the first one. This + * is used to conserve memory by avoiding array allocations, and thus sacrifices + * API cleanness. Since `current` can be null before being passed in and not + * null after this function, make sure to assign it back to `current`: + * + * `a = accumulateInto(a, b);` + * + * This API should be sparingly used. Try `accumulate` for something cleaner. + * + * @return {*|array<*>} An accumulation of items. + */ + +function accumulateInto(current, next) { + !(next != null) ? invariant(false, 'accumulateInto(...): Accumulated items must not be null or undefined.') : void 0; + + if (current == null) { + return next; + } + + // Both are not empty. Warning: Never call x.concat(y) when you are not + // certain that x is an Array (x could be a string with concat method). + if (Array.isArray(current)) { + if (Array.isArray(next)) { + current.push.apply(current, next); + return current; + } + current.push(next); + return current; + } + + if (Array.isArray(next)) { + // A bit too dangerous to mutate `next`. + return [current].concat(next); + } + + return [current, next]; +} + +/** + * @param {array} arr an "accumulation" of items which is either an Array or + * a single item. Useful when paired with the `accumulate` module. This is a + * simple utility that allows us to reason about a collection of items, but + * handling the case when there is exactly one item (and we do not need to + * allocate an array). + * @param {function} cb Callback invoked with each element or a collection. + * @param {?} [scope] Scope used as `this` in a callback. + */ +function forEachAccumulated(arr, cb, scope) { + if (Array.isArray(arr)) { + arr.forEach(cb, scope); + } else if (arr) { + cb.call(scope, arr); + } +} + +/** + * Internal queue of events that have accumulated their dispatches and are + * waiting to have their dispatches executed. + */ +var eventQueue = null; + +/** + * Dispatches an event and releases it back into the pool, unless persistent. + * + * @param {?object} event Synthetic event to be dispatched. + * @param {boolean} simulated If the event is simulated (changes exn behavior) + * @private + */ +var executeDispatchesAndRelease = function (event, simulated) { + if (event) { + executeDispatchesInOrder(event, simulated); + + if (!event.isPersistent()) { + event.constructor.release(event); + } + } +}; +var executeDispatchesAndReleaseSimulated = function (e) { + return executeDispatchesAndRelease(e, true); +}; +var executeDispatchesAndReleaseTopLevel = function (e) { + return executeDispatchesAndRelease(e, false); +}; + +function isInteractive(tag) { + return tag === 'button' || tag === 'input' || tag === 'select' || tag === 'textarea'; +} + +function shouldPreventMouseEvent(name, type, props) { + switch (name) { + case 'onClick': + case 'onClickCapture': + case 'onDoubleClick': + case 'onDoubleClickCapture': + case 'onMouseDown': + case 'onMouseDownCapture': + case 'onMouseMove': + case 'onMouseMoveCapture': + case 'onMouseUp': + case 'onMouseUpCapture': + return !!(props.disabled && isInteractive(type)); + default: + return false; + } +} + +/** + * This is a unified interface for event plugins to be installed and configured. + * + * Event plugins can implement the following properties: + * + * `extractEvents` {function(string, DOMEventTarget, string, object): *} + * Required. When a top-level event is fired, this method is expected to + * extract synthetic events that will in turn be queued and dispatched. + * + * `eventTypes` {object} + * Optional, plugins that fire events must publish a mapping of registration + * names that are used to register listeners. Values of this mapping must + * be objects that contain `registrationName` or `phasedRegistrationNames`. + * + * `executeDispatch` {function(object, function, string)} + * Optional, allows plugins to override how an event gets dispatched. By + * default, the listener is simply invoked. + * + * Each plugin that is injected into `EventsPluginHub` is immediately operable. + * + * @public + */ + +/** + * Methods for injecting dependencies. + */ +var injection$1 = { + /** + * @param {array} InjectedEventPluginOrder + * @public + */ + injectEventPluginOrder: injectEventPluginOrder, + + /** + * @param {object} injectedNamesToPlugins Map from names to plugin modules. + */ + injectEventPluginsByName: injectEventPluginsByName +}; + +/** + * @param {object} inst The instance, which is the source of events. + * @param {string} registrationName Name of listener (e.g. `onClick`). + * @return {?function} The stored callback. + */ +function getListener(inst, registrationName) { + var listener; + + // TODO: shouldPreventMouseEvent is DOM-specific and definitely should not + // live here; needs to be moved to a better place soon + var stateNode = inst.stateNode; + if (!stateNode) { + // Work in progress (ex: onload events in incremental mode). + return null; + } + var props = getFiberCurrentPropsFromNode(stateNode); + if (!props) { + // Work in progress. + return null; + } + listener = props[registrationName]; + if (shouldPreventMouseEvent(registrationName, inst.type, props)) { + return null; + } + !(!listener || typeof listener === 'function') ? invariant(false, 'Expected `%s` listener to be a function, instead got a value of `%s` type.', registrationName, typeof listener) : void 0; + return listener; +} + +/** + * Allows registered plugins an opportunity to extract events from top-level + * native browser events. + * + * @return {*} An accumulation of synthetic events. + * @internal + */ +function extractEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget) { + var events; + for (var i = 0; i < plugins.length; i++) { + // Not every plugin in the ordering may be loaded at runtime. + var possiblePlugin = plugins[i]; + if (possiblePlugin) { + var extractedEvents = possiblePlugin.extractEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget); + if (extractedEvents) { + events = accumulateInto(events, extractedEvents); + } + } + } + return events; +} + +/** + * Enqueues a synthetic event that should be dispatched when + * `processEventQueue` is invoked. + * + * @param {*} events An accumulation of synthetic events. + * @internal + */ +function enqueueEvents(events) { + if (events) { + eventQueue = accumulateInto(eventQueue, events); + } +} + +/** + * Dispatches all synthetic events on the event queue. + * + * @internal + */ +function processEventQueue(simulated) { + // Set `eventQueue` to null before processing it so that we can tell if more + // events get enqueued while processing. + var processingEventQueue = eventQueue; + eventQueue = null; + + if (!processingEventQueue) { + return; + } + + if (simulated) { + forEachAccumulated(processingEventQueue, executeDispatchesAndReleaseSimulated); + } else { + forEachAccumulated(processingEventQueue, executeDispatchesAndReleaseTopLevel); + } + !!eventQueue ? invariant(false, 'processEventQueue(): Additional events were enqueued while processing an event queue. Support for this has not yet been implemented.') : void 0; + // This would be a good time to rethrow if any of the event handlers threw. + ReactErrorUtils.rethrowCaughtError(); +} + +var EventPluginHub = Object.freeze({ + injection: injection$1, + getListener: getListener, + extractEvents: extractEvents, + enqueueEvents: enqueueEvents, + processEventQueue: processEventQueue +}); + +var IndeterminateComponent = 0; // Before we know whether it is functional or class +var FunctionalComponent = 1; +var ClassComponent = 2; +var HostRoot = 3; // Root of a host tree. Could be nested inside another node. +var HostPortal = 4; // A subtree. Could be an entry point to a different renderer. +var HostComponent = 5; +var HostText = 6; +var CallComponent = 7; +var CallHandlerPhase = 8; +var ReturnComponent = 9; +var Fragment = 10; + +var randomKey = Math.random().toString(36).slice(2); +var internalInstanceKey = '__reactInternalInstance$' + randomKey; +var internalEventHandlersKey = '__reactEventHandlers$' + randomKey; + +function precacheFiberNode$1(hostInst, node) { + node[internalInstanceKey] = hostInst; +} + +/** + * Given a DOM node, return the closest ReactDOMComponent or + * ReactDOMTextComponent instance ancestor. + */ +function getClosestInstanceFromNode(node) { + if (node[internalInstanceKey]) { + return node[internalInstanceKey]; + } + + // Walk up the tree until we find an ancestor whose instance we have cached. + var parents = []; + while (!node[internalInstanceKey]) { + parents.push(node); + if (node.parentNode) { + node = node.parentNode; + } else { + // Top of the tree. This node must not be part of a React tree (or is + // unmounted, potentially). + return null; + } + } + + var closest = void 0; + var inst = node[internalInstanceKey]; + if (inst.tag === HostComponent || inst.tag === HostText) { + // In Fiber, this will always be the deepest root. + return inst; + } + for (; node && (inst = node[internalInstanceKey]); node = parents.pop()) { + closest = inst; + } + + return closest; +} + +/** + * Given a DOM node, return the ReactDOMComponent or ReactDOMTextComponent + * instance, or null if the node was not rendered by this React. + */ +function getInstanceFromNode$1(node) { + var inst = node[internalInstanceKey]; + if (inst) { + if (inst.tag === HostComponent || inst.tag === HostText) { + return inst; + } else { + return null; + } + } + return null; +} + +/** + * Given a ReactDOMComponent or ReactDOMTextComponent, return the corresponding + * DOM node. + */ +function getNodeFromInstance$1(inst) { + if (inst.tag === HostComponent || inst.tag === HostText) { + // In Fiber this, is just the state node right now. We assume it will be + // a host component or host text. + return inst.stateNode; + } + + // Without this first invariant, passing a non-DOM-component triggers the next + // invariant for a missing parent, which is super confusing. + invariant(false, 'getNodeFromInstance: Invalid argument.'); +} + +function getFiberCurrentPropsFromNode$1(node) { + return node[internalEventHandlersKey] || null; +} + +function updateFiberProps$1(node, props) { + node[internalEventHandlersKey] = props; +} + +var ReactDOMComponentTree = Object.freeze({ + precacheFiberNode: precacheFiberNode$1, + getClosestInstanceFromNode: getClosestInstanceFromNode, + getInstanceFromNode: getInstanceFromNode$1, + getNodeFromInstance: getNodeFromInstance$1, + getFiberCurrentPropsFromNode: getFiberCurrentPropsFromNode$1, + updateFiberProps: updateFiberProps$1 +}); + +function getParent(inst) { + do { + inst = inst['return']; + // TODO: If this is a HostRoot we might want to bail out. + // That is depending on if we want nested subtrees (layers) to bubble + // events to their parent. We could also go through parentNode on the + // host node but that wouldn't work for React Native and doesn't let us + // do the portal feature. + } while (inst && inst.tag !== HostComponent); + if (inst) { + return inst; + } + return null; +} + +/** + * Return the lowest common ancestor of A and B, or null if they are in + * different trees. + */ +function getLowestCommonAncestor(instA, instB) { + var depthA = 0; + for (var tempA = instA; tempA; tempA = getParent(tempA)) { + depthA++; + } + var depthB = 0; + for (var tempB = instB; tempB; tempB = getParent(tempB)) { + depthB++; + } + + // If A is deeper, crawl up. + while (depthA - depthB > 0) { + instA = getParent(instA); + depthA--; + } + + // If B is deeper, crawl up. + while (depthB - depthA > 0) { + instB = getParent(instB); + depthB--; + } + + // Walk in lockstep until we find a match. + var depth = depthA; + while (depth--) { + if (instA === instB || instA === instB.alternate) { + return instA; + } + instA = getParent(instA); + instB = getParent(instB); + } + return null; +} + +/** + * Return if A is an ancestor of B. + */ + + +/** + * Return the parent instance of the passed-in instance. + */ +function getParentInstance(inst) { + return getParent(inst); +} + +/** + * Simulates the traversal of a two-phase, capture/bubble event dispatch. + */ +function traverseTwoPhase(inst, fn, arg) { + var path = []; + while (inst) { + path.push(inst); + inst = getParent(inst); + } + var i; + for (i = path.length; i-- > 0;) { + fn(path[i], 'captured', arg); + } + for (i = 0; i < path.length; i++) { + fn(path[i], 'bubbled', arg); + } +} + +/** + * Traverses the ID hierarchy and invokes the supplied `cb` on any IDs that + * should would receive a `mouseEnter` or `mouseLeave` event. + * + * Does not invoke the callback on the nearest common ancestor because nothing + * "entered" or "left" that element. + */ +function traverseEnterLeave(from, to, fn, argFrom, argTo) { + var common = from && to ? getLowestCommonAncestor(from, to) : null; + var pathFrom = []; + while (true) { + if (!from) { + break; + } + if (from === common) { + break; + } + var alternate = from.alternate; + if (alternate !== null && alternate === common) { + break; + } + pathFrom.push(from); + from = getParent(from); + } + var pathTo = []; + while (true) { + if (!to) { + break; + } + if (to === common) { + break; + } + var _alternate = to.alternate; + if (_alternate !== null && _alternate === common) { + break; + } + pathTo.push(to); + to = getParent(to); + } + for (var i = 0; i < pathFrom.length; i++) { + fn(pathFrom[i], 'bubbled', argFrom); + } + for (var _i = pathTo.length; _i-- > 0;) { + fn(pathTo[_i], 'captured', argTo); + } +} + +/** + * Some event types have a notion of different registration names for different + * "phases" of propagation. This finds listeners by a given phase. + */ +function listenerAtPhase(inst, event, propagationPhase) { + var registrationName = event.dispatchConfig.phasedRegistrationNames[propagationPhase]; + return getListener(inst, registrationName); +} + +/** + * A small set of propagation patterns, each of which will accept a small amount + * of information, and generate a set of "dispatch ready event objects" - which + * are sets of events that have already been annotated with a set of dispatched + * listener functions/ids. The API is designed this way to discourage these + * propagation strategies from actually executing the dispatches, since we + * always want to collect the entire set of dispatches before executing even a + * single one. + */ + +/** + * Tags a `SyntheticEvent` with dispatched listeners. Creating this function + * here, allows us to not have to bind or create functions for each event. + * Mutating the event's members allows us to not have to create a wrapping + * "dispatch" object that pairs the event with the listener. + */ +function accumulateDirectionalDispatches(inst, phase, event) { + { + warning(inst, 'Dispatching inst must not be null'); + } + var listener = listenerAtPhase(inst, event, phase); + if (listener) { + event._dispatchListeners = accumulateInto(event._dispatchListeners, listener); + event._dispatchInstances = accumulateInto(event._dispatchInstances, inst); + } +} + +/** + * Collect dispatches (must be entirely collected before dispatching - see unit + * tests). Lazily allocate the array to conserve memory. We must loop through + * each event and perform the traversal for each one. We cannot perform a + * single traversal for the entire collection of events because each event may + * have a different target. + */ +function accumulateTwoPhaseDispatchesSingle(event) { + if (event && event.dispatchConfig.phasedRegistrationNames) { + traverseTwoPhase(event._targetInst, accumulateDirectionalDispatches, event); + } +} + +/** + * Same as `accumulateTwoPhaseDispatchesSingle`, but skips over the targetID. + */ +function accumulateTwoPhaseDispatchesSingleSkipTarget(event) { + if (event && event.dispatchConfig.phasedRegistrationNames) { + var targetInst = event._targetInst; + var parentInst = targetInst ? getParentInstance(targetInst) : null; + traverseTwoPhase(parentInst, accumulateDirectionalDispatches, event); + } +} + +/** + * Accumulates without regard to direction, does not look for phased + * registration names. Same as `accumulateDirectDispatchesSingle` but without + * requiring that the `dispatchMarker` be the same as the dispatched ID. + */ +function accumulateDispatches(inst, ignoredDirection, event) { + if (inst && event && event.dispatchConfig.registrationName) { + var registrationName = event.dispatchConfig.registrationName; + var listener = getListener(inst, registrationName); + if (listener) { + event._dispatchListeners = accumulateInto(event._dispatchListeners, listener); + event._dispatchInstances = accumulateInto(event._dispatchInstances, inst); + } + } +} + +/** + * Accumulates dispatches on an `SyntheticEvent`, but only for the + * `dispatchMarker`. + * @param {SyntheticEvent} event + */ +function accumulateDirectDispatchesSingle(event) { + if (event && event.dispatchConfig.registrationName) { + accumulateDispatches(event._targetInst, null, event); + } +} + +function accumulateTwoPhaseDispatches(events) { + forEachAccumulated(events, accumulateTwoPhaseDispatchesSingle); +} + +function accumulateTwoPhaseDispatchesSkipTarget(events) { + forEachAccumulated(events, accumulateTwoPhaseDispatchesSingleSkipTarget); +} + +function accumulateEnterLeaveDispatches(leave, enter, from, to) { + traverseEnterLeave(from, to, accumulateDispatches, leave, enter); +} + +function accumulateDirectDispatches(events) { + forEachAccumulated(events, accumulateDirectDispatchesSingle); +} + +var EventPropagators = Object.freeze({ + accumulateTwoPhaseDispatches: accumulateTwoPhaseDispatches, + accumulateTwoPhaseDispatchesSkipTarget: accumulateTwoPhaseDispatchesSkipTarget, + accumulateEnterLeaveDispatches: accumulateEnterLeaveDispatches, + accumulateDirectDispatches: accumulateDirectDispatches +}); + +var contentKey = null; + +/** + * Gets the key used to access text content on a DOM node. + * + * @return {?string} Key used to access text content. + * @internal + */ +function getTextContentAccessor() { + if (!contentKey && ExecutionEnvironment.canUseDOM) { + // Prefer textContent to innerText because many browsers support both but + // SVG elements don't support innerText even when
does. + contentKey = 'textContent' in document.documentElement ? 'textContent' : 'innerText'; + } + return contentKey; +} + +/** + * This helper object stores information about text content of a target node, + * allowing comparison of content before and after a given event. + * + * Identify the node where selection currently begins, then observe + * both its text content and its current position in the DOM. Since the + * browser may natively replace the target node during composition, we can + * use its position to find its replacement. + * + * + */ +var compositionState = { + _root: null, + _startText: null, + _fallbackText: null +}; + +function initialize(nativeEventTarget) { + compositionState._root = nativeEventTarget; + compositionState._startText = getText(); + return true; +} + +function reset() { + compositionState._root = null; + compositionState._startText = null; + compositionState._fallbackText = null; +} + +function getData() { + if (compositionState._fallbackText) { + return compositionState._fallbackText; + } + + var start; + var startValue = compositionState._startText; + var startLength = startValue.length; + var end; + var endValue = getText(); + var endLength = endValue.length; + + for (start = 0; start < startLength; start++) { + if (startValue[start] !== endValue[start]) { + break; + } + } + + var minEnd = startLength - start; + for (end = 1; end <= minEnd; end++) { + if (startValue[startLength - end] !== endValue[endLength - end]) { + break; + } + } + + var sliceTail = end > 1 ? 1 - end : undefined; + compositionState._fallbackText = endValue.slice(start, sliceTail); + return compositionState._fallbackText; +} + +function getText() { + if ('value' in compositionState._root) { + return compositionState._root.value; + } + return compositionState._root[getTextContentAccessor()]; +} + +/* eslint valid-typeof: 0 */ + +var didWarnForAddedNewProperty = false; +var isProxySupported = typeof Proxy === 'function'; +var EVENT_POOL_SIZE = 10; + +var shouldBeReleasedProperties = ['dispatchConfig', '_targetInst', 'nativeEvent', 'isDefaultPrevented', 'isPropagationStopped', '_dispatchListeners', '_dispatchInstances']; + +/** + * @interface Event + * @see http://www.w3.org/TR/DOM-Level-3-Events/ + */ +var EventInterface = { + type: null, + target: null, + // currentTarget is set when dispatching; no use in copying it here + currentTarget: emptyFunction.thatReturnsNull, + eventPhase: null, + bubbles: null, + cancelable: null, + timeStamp: function (event) { + return event.timeStamp || Date.now(); + }, + defaultPrevented: null, + isTrusted: null +}; + +/** + * Synthetic events are dispatched by event plugins, typically in response to a + * top-level event delegation handler. + * + * These systems should generally use pooling to reduce the frequency of garbage + * collection. The system should check `isPersistent` to determine whether the + * event should be released into the pool after being dispatched. Users that + * need a persisted event should invoke `persist`. + * + * Synthetic events (and subclasses) implement the DOM Level 3 Events API by + * normalizing browser quirks. Subclasses do not necessarily have to implement a + * DOM interface; custom application-specific events can also subclass this. + * + * @param {object} dispatchConfig Configuration used to dispatch this event. + * @param {*} targetInst Marker identifying the event target. + * @param {object} nativeEvent Native browser event. + * @param {DOMEventTarget} nativeEventTarget Target node. + */ +function SyntheticEvent(dispatchConfig, targetInst, nativeEvent, nativeEventTarget) { + { + // these have a getter/setter for warnings + delete this.nativeEvent; + delete this.preventDefault; + delete this.stopPropagation; + } + + this.dispatchConfig = dispatchConfig; + this._targetInst = targetInst; + this.nativeEvent = nativeEvent; + + var Interface = this.constructor.Interface; + for (var propName in Interface) { + if (!Interface.hasOwnProperty(propName)) { + continue; + } + { + delete this[propName]; // this has a getter/setter for warnings + } + var normalize = Interface[propName]; + if (normalize) { + this[propName] = normalize(nativeEvent); + } else { + if (propName === 'target') { + this.target = nativeEventTarget; + } else { + this[propName] = nativeEvent[propName]; + } + } + } + + var defaultPrevented = nativeEvent.defaultPrevented != null ? nativeEvent.defaultPrevented : nativeEvent.returnValue === false; + if (defaultPrevented) { + this.isDefaultPrevented = emptyFunction.thatReturnsTrue; + } else { + this.isDefaultPrevented = emptyFunction.thatReturnsFalse; + } + this.isPropagationStopped = emptyFunction.thatReturnsFalse; + return this; +} + +_assign(SyntheticEvent.prototype, { + preventDefault: function () { + this.defaultPrevented = true; + var event = this.nativeEvent; + if (!event) { + return; + } + + if (event.preventDefault) { + event.preventDefault(); + } else if (typeof event.returnValue !== 'unknown') { + event.returnValue = false; + } + this.isDefaultPrevented = emptyFunction.thatReturnsTrue; + }, + + stopPropagation: function () { + var event = this.nativeEvent; + if (!event) { + return; + } + + if (event.stopPropagation) { + event.stopPropagation(); + } else if (typeof event.cancelBubble !== 'unknown') { + // The ChangeEventPlugin registers a "propertychange" event for + // IE. This event does not support bubbling or cancelling, and + // any references to cancelBubble throw "Member not found". A + // typeof check of "unknown" circumvents this issue (and is also + // IE specific). + event.cancelBubble = true; + } + + this.isPropagationStopped = emptyFunction.thatReturnsTrue; + }, + + /** + * We release all dispatched `SyntheticEvent`s after each event loop, adding + * them back into the pool. This allows a way to hold onto a reference that + * won't be added back into the pool. + */ + persist: function () { + this.isPersistent = emptyFunction.thatReturnsTrue; + }, + + /** + * Checks if this event should be released back into the pool. + * + * @return {boolean} True if this should not be released, false otherwise. + */ + isPersistent: emptyFunction.thatReturnsFalse, + + /** + * `PooledClass` looks for `destructor` on each instance it releases. + */ + destructor: function () { + var Interface = this.constructor.Interface; + for (var propName in Interface) { + { + Object.defineProperty(this, propName, getPooledWarningPropertyDefinition(propName, Interface[propName])); + } + } + for (var i = 0; i < shouldBeReleasedProperties.length; i++) { + this[shouldBeReleasedProperties[i]] = null; + } + { + Object.defineProperty(this, 'nativeEvent', getPooledWarningPropertyDefinition('nativeEvent', null)); + Object.defineProperty(this, 'preventDefault', getPooledWarningPropertyDefinition('preventDefault', emptyFunction)); + Object.defineProperty(this, 'stopPropagation', getPooledWarningPropertyDefinition('stopPropagation', emptyFunction)); + } + } +}); + +SyntheticEvent.Interface = EventInterface; + +/** + * Helper to reduce boilerplate when creating subclasses. + * + * @param {function} Class + * @param {?object} Interface + */ +SyntheticEvent.augmentClass = function (Class, Interface) { + var Super = this; + + var E = function () {}; + E.prototype = Super.prototype; + var prototype = new E(); + + _assign(prototype, Class.prototype); + Class.prototype = prototype; + Class.prototype.constructor = Class; + + Class.Interface = _assign({}, Super.Interface, Interface); + Class.augmentClass = Super.augmentClass; + addEventPoolingTo(Class); +}; + +/** Proxying after everything set on SyntheticEvent + * to resolve Proxy issue on some WebKit browsers + * in which some Event properties are set to undefined (GH#10010) + */ +{ + if (isProxySupported) { + /*eslint-disable no-func-assign */ + SyntheticEvent = new Proxy(SyntheticEvent, { + construct: function (target, args) { + return this.apply(target, Object.create(target.prototype), args); + }, + apply: function (constructor, that, args) { + return new Proxy(constructor.apply(that, args), { + set: function (target, prop, value) { + if (prop !== 'isPersistent' && !target.constructor.Interface.hasOwnProperty(prop) && shouldBeReleasedProperties.indexOf(prop) === -1) { + warning(didWarnForAddedNewProperty || target.isPersistent(), "This synthetic event is reused for performance reasons. If you're " + "seeing this, you're adding a new property in the synthetic event object. " + 'The property is never released. See ' + 'https://fb.me/react-event-pooling for more information.'); + didWarnForAddedNewProperty = true; + } + target[prop] = value; + return true; + } + }); + } + }); + /*eslint-enable no-func-assign */ + } +} + +addEventPoolingTo(SyntheticEvent); + +/** + * Helper to nullify syntheticEvent instance properties when destructing + * + * @param {String} propName + * @param {?object} getVal + * @return {object} defineProperty object + */ +function getPooledWarningPropertyDefinition(propName, getVal) { + var isFunction = typeof getVal === 'function'; + return { + configurable: true, + set: set, + get: get + }; + + function set(val) { + var action = isFunction ? 'setting the method' : 'setting the property'; + warn(action, 'This is effectively a no-op'); + return val; + } + + function get() { + var action = isFunction ? 'accessing the method' : 'accessing the property'; + var result = isFunction ? 'This is a no-op function' : 'This is set to null'; + warn(action, result); + return getVal; + } + + function warn(action, result) { + var warningCondition = false; + warning(warningCondition, "This synthetic event is reused for performance reasons. If you're seeing this, " + "you're %s `%s` on a released/nullified synthetic event. %s. " + 'If you must keep the original synthetic event around, use event.persist(). ' + 'See https://fb.me/react-event-pooling for more information.', action, propName, result); + } +} + +function getPooledEvent(dispatchConfig, targetInst, nativeEvent, nativeInst) { + var EventConstructor = this; + if (EventConstructor.eventPool.length) { + var instance = EventConstructor.eventPool.pop(); + EventConstructor.call(instance, dispatchConfig, targetInst, nativeEvent, nativeInst); + return instance; + } + return new EventConstructor(dispatchConfig, targetInst, nativeEvent, nativeInst); +} + +function releasePooledEvent(event) { + var EventConstructor = this; + !(event instanceof EventConstructor) ? invariant(false, 'Trying to release an event instance into a pool of a different type.') : void 0; + event.destructor(); + if (EventConstructor.eventPool.length < EVENT_POOL_SIZE) { + EventConstructor.eventPool.push(event); + } +} + +function addEventPoolingTo(EventConstructor) { + EventConstructor.eventPool = []; + EventConstructor.getPooled = getPooledEvent; + EventConstructor.release = releasePooledEvent; +} + +var SyntheticEvent$1 = SyntheticEvent; + +/** + * @interface Event + * @see http://www.w3.org/TR/DOM-Level-3-Events/#events-compositionevents + */ +var CompositionEventInterface = { + data: null +}; + +/** + * @param {object} dispatchConfig Configuration used to dispatch this event. + * @param {string} dispatchMarker Marker identifying the event target. + * @param {object} nativeEvent Native browser event. + * @extends {SyntheticEvent} + */ +function SyntheticCompositionEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) { + return SyntheticEvent$1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget); +} + +SyntheticEvent$1.augmentClass(SyntheticCompositionEvent, CompositionEventInterface); + +/** + * @interface Event + * @see http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105 + * /#events-inputevents + */ +var InputEventInterface = { + data: null +}; + +/** + * @param {object} dispatchConfig Configuration used to dispatch this event. + * @param {string} dispatchMarker Marker identifying the event target. + * @param {object} nativeEvent Native browser event. + * @extends {SyntheticEvent} + */ +function SyntheticInputEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) { + return SyntheticEvent$1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget); +} + +SyntheticEvent$1.augmentClass(SyntheticInputEvent, InputEventInterface); + +var END_KEYCODES = [9, 13, 27, 32]; // Tab, Return, Esc, Space +var START_KEYCODE = 229; + +var canUseCompositionEvent = ExecutionEnvironment.canUseDOM && 'CompositionEvent' in window; + +var documentMode = null; +if (ExecutionEnvironment.canUseDOM && 'documentMode' in document) { + documentMode = document.documentMode; +} + +// Webkit offers a very useful `textInput` event that can be used to +// directly represent `beforeInput`. The IE `textinput` event is not as +// useful, so we don't use it. +var canUseTextInputEvent = ExecutionEnvironment.canUseDOM && 'TextEvent' in window && !documentMode && !isPresto(); + +// In IE9+, we have access to composition events, but the data supplied +// by the native compositionend event may be incorrect. Japanese ideographic +// spaces, for instance (\u3000) are not recorded correctly. +var useFallbackCompositionData = ExecutionEnvironment.canUseDOM && (!canUseCompositionEvent || documentMode && documentMode > 8 && documentMode <= 11); + +/** + * Opera <= 12 includes TextEvent in window, but does not fire + * text input events. Rely on keypress instead. + */ +function isPresto() { + var opera = window.opera; + return typeof opera === 'object' && typeof opera.version === 'function' && parseInt(opera.version(), 10) <= 12; +} + +var SPACEBAR_CODE = 32; +var SPACEBAR_CHAR = String.fromCharCode(SPACEBAR_CODE); + +// Events and their corresponding property names. +var eventTypes = { + beforeInput: { + phasedRegistrationNames: { + bubbled: 'onBeforeInput', + captured: 'onBeforeInputCapture' + }, + dependencies: ['topCompositionEnd', 'topKeyPress', 'topTextInput', 'topPaste'] + }, + compositionEnd: { + phasedRegistrationNames: { + bubbled: 'onCompositionEnd', + captured: 'onCompositionEndCapture' + }, + dependencies: ['topBlur', 'topCompositionEnd', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown'] + }, + compositionStart: { + phasedRegistrationNames: { + bubbled: 'onCompositionStart', + captured: 'onCompositionStartCapture' + }, + dependencies: ['topBlur', 'topCompositionStart', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown'] + }, + compositionUpdate: { + phasedRegistrationNames: { + bubbled: 'onCompositionUpdate', + captured: 'onCompositionUpdateCapture' + }, + dependencies: ['topBlur', 'topCompositionUpdate', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown'] + } +}; + +// Track whether we've ever handled a keypress on the space key. +var hasSpaceKeypress = false; + +/** + * Return whether a native keypress event is assumed to be a command. + * This is required because Firefox fires `keypress` events for key commands + * (cut, copy, select-all, etc.) even though no character is inserted. + */ +function isKeypressCommand(nativeEvent) { + return (nativeEvent.ctrlKey || nativeEvent.altKey || nativeEvent.metaKey) && + // ctrlKey && altKey is equivalent to AltGr, and is not a command. + !(nativeEvent.ctrlKey && nativeEvent.altKey); +} + +/** + * Translate native top level events into event types. + * + * @param {string} topLevelType + * @return {object} + */ +function getCompositionEventType(topLevelType) { + switch (topLevelType) { + case 'topCompositionStart': + return eventTypes.compositionStart; + case 'topCompositionEnd': + return eventTypes.compositionEnd; + case 'topCompositionUpdate': + return eventTypes.compositionUpdate; + } +} + +/** + * Does our fallback best-guess model think this event signifies that + * composition has begun? + * + * @param {string} topLevelType + * @param {object} nativeEvent + * @return {boolean} + */ +function isFallbackCompositionStart(topLevelType, nativeEvent) { + return topLevelType === 'topKeyDown' && nativeEvent.keyCode === START_KEYCODE; +} + +/** + * Does our fallback mode think that this event is the end of composition? + * + * @param {string} topLevelType + * @param {object} nativeEvent + * @return {boolean} + */ +function isFallbackCompositionEnd(topLevelType, nativeEvent) { + switch (topLevelType) { + case 'topKeyUp': + // Command keys insert or clear IME input. + return END_KEYCODES.indexOf(nativeEvent.keyCode) !== -1; + case 'topKeyDown': + // Expect IME keyCode on each keydown. If we get any other + // code we must have exited earlier. + return nativeEvent.keyCode !== START_KEYCODE; + case 'topKeyPress': + case 'topMouseDown': + case 'topBlur': + // Events are not possible without cancelling IME. + return true; + default: + return false; + } +} + +/** + * Google Input Tools provides composition data via a CustomEvent, + * with the `data` property populated in the `detail` object. If this + * is available on the event object, use it. If not, this is a plain + * composition event and we have nothing special to extract. + * + * @param {object} nativeEvent + * @return {?string} + */ +function getDataFromCustomEvent(nativeEvent) { + var detail = nativeEvent.detail; + if (typeof detail === 'object' && 'data' in detail) { + return detail.data; + } + return null; +} + +// Track the current IME composition status, if any. +var isComposing = false; + +/** + * @return {?object} A SyntheticCompositionEvent. + */ +function extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) { + var eventType; + var fallbackData; + + if (canUseCompositionEvent) { + eventType = getCompositionEventType(topLevelType); + } else if (!isComposing) { + if (isFallbackCompositionStart(topLevelType, nativeEvent)) { + eventType = eventTypes.compositionStart; + } + } else if (isFallbackCompositionEnd(topLevelType, nativeEvent)) { + eventType = eventTypes.compositionEnd; + } + + if (!eventType) { + return null; + } + + if (useFallbackCompositionData) { + // The current composition is stored statically and must not be + // overwritten while composition continues. + if (!isComposing && eventType === eventTypes.compositionStart) { + isComposing = initialize(nativeEventTarget); + } else if (eventType === eventTypes.compositionEnd) { + if (isComposing) { + fallbackData = getData(); + } + } + } + + var event = SyntheticCompositionEvent.getPooled(eventType, targetInst, nativeEvent, nativeEventTarget); + + if (fallbackData) { + // Inject data generated from fallback path into the synthetic event. + // This matches the property of native CompositionEventInterface. + event.data = fallbackData; + } else { + var customData = getDataFromCustomEvent(nativeEvent); + if (customData !== null) { + event.data = customData; + } + } + + accumulateTwoPhaseDispatches(event); + return event; +} + +/** + * @param {TopLevelTypes} topLevelType Record from `BrowserEventConstants`. + * @param {object} nativeEvent Native browser event. + * @return {?string} The string corresponding to this `beforeInput` event. + */ +function getNativeBeforeInputChars(topLevelType, nativeEvent) { + switch (topLevelType) { + case 'topCompositionEnd': + return getDataFromCustomEvent(nativeEvent); + case 'topKeyPress': + /** + * If native `textInput` events are available, our goal is to make + * use of them. However, there is a special case: the spacebar key. + * In Webkit, preventing default on a spacebar `textInput` event + * cancels character insertion, but it *also* causes the browser + * to fall back to its default spacebar behavior of scrolling the + * page. + * + * Tracking at: + * https://code.google.com/p/chromium/issues/detail?id=355103 + * + * To avoid this issue, use the keypress event as if no `textInput` + * event is available. + */ + var which = nativeEvent.which; + if (which !== SPACEBAR_CODE) { + return null; + } + + hasSpaceKeypress = true; + return SPACEBAR_CHAR; + + case 'topTextInput': + // Record the characters to be added to the DOM. + var chars = nativeEvent.data; + + // If it's a spacebar character, assume that we have already handled + // it at the keypress level and bail immediately. Android Chrome + // doesn't give us keycodes, so we need to blacklist it. + if (chars === SPACEBAR_CHAR && hasSpaceKeypress) { + return null; + } + + return chars; + + default: + // For other native event types, do nothing. + return null; + } +} + +/** + * For browsers that do not provide the `textInput` event, extract the + * appropriate string to use for SyntheticInputEvent. + * + * @param {string} topLevelType Record from `BrowserEventConstants`. + * @param {object} nativeEvent Native browser event. + * @return {?string} The fallback string for this `beforeInput` event. + */ +function getFallbackBeforeInputChars(topLevelType, nativeEvent) { + // If we are currently composing (IME) and using a fallback to do so, + // try to extract the composed characters from the fallback object. + // If composition event is available, we extract a string only at + // compositionevent, otherwise extract it at fallback events. + if (isComposing) { + if (topLevelType === 'topCompositionEnd' || !canUseCompositionEvent && isFallbackCompositionEnd(topLevelType, nativeEvent)) { + var chars = getData(); + reset(); + isComposing = false; + return chars; + } + return null; + } + + switch (topLevelType) { + case 'topPaste': + // If a paste event occurs after a keypress, throw out the input + // chars. Paste events should not lead to BeforeInput events. + return null; + case 'topKeyPress': + /** + * As of v27, Firefox may fire keypress events even when no character + * will be inserted. A few possibilities: + * + * - `which` is `0`. Arrow keys, Esc key, etc. + * + * - `which` is the pressed key code, but no char is available. + * Ex: 'AltGr + d` in Polish. There is no modified character for + * this key combination and no character is inserted into the + * document, but FF fires the keypress for char code `100` anyway. + * No `input` event will occur. + * + * - `which` is the pressed key code, but a command combination is + * being used. Ex: `Cmd+C`. No character is inserted, and no + * `input` event will occur. + */ + if (!isKeypressCommand(nativeEvent)) { + // IE fires the `keypress` event when a user types an emoji via + // Touch keyboard of Windows. In such a case, the `char` property + // holds an emoji character like `\uD83D\uDE0A`. Because its length + // is 2, the property `which` does not represent an emoji correctly. + // In such a case, we directly return the `char` property instead of + // using `which`. + if (nativeEvent.char && nativeEvent.char.length > 1) { + return nativeEvent.char; + } else if (nativeEvent.which) { + return String.fromCharCode(nativeEvent.which); + } + } + return null; + case 'topCompositionEnd': + return useFallbackCompositionData ? null : nativeEvent.data; + default: + return null; + } +} + +/** + * Extract a SyntheticInputEvent for `beforeInput`, based on either native + * `textInput` or fallback behavior. + * + * @return {?object} A SyntheticInputEvent. + */ +function extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) { + var chars; + + if (canUseTextInputEvent) { + chars = getNativeBeforeInputChars(topLevelType, nativeEvent); + } else { + chars = getFallbackBeforeInputChars(topLevelType, nativeEvent); + } + + // If no characters are being inserted, no BeforeInput event should + // be fired. + if (!chars) { + return null; + } + + var event = SyntheticInputEvent.getPooled(eventTypes.beforeInput, targetInst, nativeEvent, nativeEventTarget); + + event.data = chars; + accumulateTwoPhaseDispatches(event); + return event; +} + +/** + * Create an `onBeforeInput` event to match + * http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105/#events-inputevents. + * + * This event plugin is based on the native `textInput` event + * available in Chrome, Safari, Opera, and IE. This event fires after + * `onKeyPress` and `onCompositionEnd`, but before `onInput`. + * + * `beforeInput` is spec'd but not implemented in any browsers, and + * the `input` event does not provide any useful information about what has + * actually been added, contrary to the spec. Thus, `textInput` is the best + * available event to identify the characters that have actually been inserted + * into the target node. + * + * This plugin is also responsible for emitting `composition` events, thus + * allowing us to share composition fallback code for both `beforeInput` and + * `composition` event types. + */ +var BeforeInputEventPlugin = { + eventTypes: eventTypes, + + extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) { + return [extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget), extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget)]; + } +}; + +// Use to restore controlled state after a change event has fired. + +var fiberHostComponent = null; + +var ReactControlledComponentInjection = { + injectFiberControlledHostComponent: function (hostComponentImpl) { + // The fiber implementation doesn't use dynamic dispatch so we need to + // inject the implementation. + fiberHostComponent = hostComponentImpl; + } +}; + +var restoreTarget = null; +var restoreQueue = null; + +function restoreStateOfTarget(target) { + // We perform this translation at the end of the event loop so that we + // always receive the correct fiber here + var internalInstance = getInstanceFromNode(target); + if (!internalInstance) { + // Unmounted + return; + } + !(fiberHostComponent && typeof fiberHostComponent.restoreControlledState === 'function') ? invariant(false, 'Fiber needs to be injected to handle a fiber target for controlled events. This error is likely caused by a bug in React. Please file an issue.') : void 0; + var props = getFiberCurrentPropsFromNode(internalInstance.stateNode); + fiberHostComponent.restoreControlledState(internalInstance.stateNode, internalInstance.type, props); +} + +var injection$3 = ReactControlledComponentInjection; + +function enqueueStateRestore(target) { + if (restoreTarget) { + if (restoreQueue) { + restoreQueue.push(target); + } else { + restoreQueue = [target]; + } + } else { + restoreTarget = target; + } +} + +function restoreStateIfNeeded() { + if (!restoreTarget) { + return; + } + var target = restoreTarget; + var queuedTargets = restoreQueue; + restoreTarget = null; + restoreQueue = null; + + restoreStateOfTarget(target); + if (queuedTargets) { + for (var i = 0; i < queuedTargets.length; i++) { + restoreStateOfTarget(queuedTargets[i]); + } + } +} + +var ReactControlledComponent = Object.freeze({ + injection: injection$3, + enqueueStateRestore: enqueueStateRestore, + restoreStateIfNeeded: restoreStateIfNeeded +}); + +// Used as a way to call batchedUpdates when we don't have a reference to +// the renderer. Such as when we're dispatching events or if third party +// libraries need to call batchedUpdates. Eventually, this API will go away when +// everything is batched by default. We'll then have a similar API to opt-out of +// scheduled work and instead do synchronous work. + +// Defaults +var fiberBatchedUpdates = function (fn, bookkeeping) { + return fn(bookkeeping); +}; + +var isNestingBatched = false; +function batchedUpdates(fn, bookkeeping) { + if (isNestingBatched) { + // If we are currently inside another batch, we need to wait until it + // fully completes before restoring state. Therefore, we add the target to + // a queue of work. + return fiberBatchedUpdates(fn, bookkeeping); + } + isNestingBatched = true; + try { + return fiberBatchedUpdates(fn, bookkeeping); + } finally { + // Here we wait until all updates have propagated, which is important + // when using controlled components within layers: + // https://github.com/facebook/react/issues/1698 + // Then we restore state of any controlled component. + isNestingBatched = false; + restoreStateIfNeeded(); + } +} + +var ReactGenericBatchingInjection = { + injectFiberBatchedUpdates: function (_batchedUpdates) { + fiberBatchedUpdates = _batchedUpdates; + } +}; + +var injection$4 = ReactGenericBatchingInjection; + +/** + * @see http://www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#input-type-attr-summary + */ +var supportedInputTypes = { + color: true, + date: true, + datetime: true, + 'datetime-local': true, + email: true, + month: true, + number: true, + password: true, + range: true, + search: true, + tel: true, + text: true, + time: true, + url: true, + week: true +}; + +function isTextInputElement(elem) { + var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase(); + + if (nodeName === 'input') { + return !!supportedInputTypes[elem.type]; + } + + if (nodeName === 'textarea') { + return true; + } + + return false; +} + +/** + * HTML nodeType values that represent the type of the node + */ + +var ELEMENT_NODE = 1; +var TEXT_NODE = 3; +var COMMENT_NODE = 8; +var DOCUMENT_NODE = 9; +var DOCUMENT_FRAGMENT_NODE = 11; + +/** + * Gets the target node from a native browser event by accounting for + * inconsistencies in browser DOM APIs. + * + * @param {object} nativeEvent Native browser event. + * @return {DOMEventTarget} Target node. + */ +function getEventTarget(nativeEvent) { + var target = nativeEvent.target || nativeEvent.srcElement || window; + + // Normalize SVG element events #4963 + if (target.correspondingUseElement) { + target = target.correspondingUseElement; + } + + // Safari may fire events on text nodes (Node.TEXT_NODE is 3). + // @see http://www.quirksmode.org/js/events_properties.html + return target.nodeType === TEXT_NODE ? target.parentNode : target; +} + +var useHasFeature; +if (ExecutionEnvironment.canUseDOM) { + useHasFeature = document.implementation && document.implementation.hasFeature && + // always returns true in newer browsers as per the standard. + // @see http://dom.spec.whatwg.org/#dom-domimplementation-hasfeature + document.implementation.hasFeature('', '') !== true; +} + +/** + * Checks if an event is supported in the current execution environment. + * + * NOTE: This will not work correctly for non-generic events such as `change`, + * `reset`, `load`, `error`, and `select`. + * + * Borrows from Modernizr. + * + * @param {string} eventNameSuffix Event name, e.g. "click". + * @param {?boolean} capture Check if the capture phase is supported. + * @return {boolean} True if the event is supported. + * @internal + * @license Modernizr 3.0.0pre (Custom Build) | MIT + */ +function isEventSupported(eventNameSuffix, capture) { + if (!ExecutionEnvironment.canUseDOM || capture && !('addEventListener' in document)) { + return false; + } + + var eventName = 'on' + eventNameSuffix; + var isSupported = eventName in document; + + if (!isSupported) { + var element = document.createElement('div'); + element.setAttribute(eventName, 'return;'); + isSupported = typeof element[eventName] === 'function'; + } + + if (!isSupported && useHasFeature && eventNameSuffix === 'wheel') { + // This is the only way to test support for the `wheel` event in IE9+. + isSupported = document.implementation.hasFeature('Events.wheel', '3.0'); + } + + return isSupported; +} + +function isCheckable(elem) { + var type = elem.type; + var nodeName = elem.nodeName; + return nodeName && nodeName.toLowerCase() === 'input' && (type === 'checkbox' || type === 'radio'); +} + +function getTracker(node) { + return node._valueTracker; +} + +function detachTracker(node) { + node._valueTracker = null; +} + +function getValueFromNode(node) { + var value = ''; + if (!node) { + return value; + } + + if (isCheckable(node)) { + value = node.checked ? 'true' : 'false'; + } else { + value = node.value; + } + + return value; +} + +function trackValueOnNode(node) { + var valueField = isCheckable(node) ? 'checked' : 'value'; + var descriptor = Object.getOwnPropertyDescriptor(node.constructor.prototype, valueField); + + var currentValue = '' + node[valueField]; + + // if someone has already defined a value or Safari, then bail + // and don't track value will cause over reporting of changes, + // but it's better then a hard failure + // (needed for certain tests that spyOn input values and Safari) + if (node.hasOwnProperty(valueField) || typeof descriptor.get !== 'function' || typeof descriptor.set !== 'function') { + return; + } + + Object.defineProperty(node, valueField, { + enumerable: descriptor.enumerable, + configurable: true, + get: function () { + return descriptor.get.call(this); + }, + set: function (value) { + currentValue = '' + value; + descriptor.set.call(this, value); + } + }); + + var tracker = { + getValue: function () { + return currentValue; + }, + setValue: function (value) { + currentValue = '' + value; + }, + stopTracking: function () { + detachTracker(node); + delete node[valueField]; + } + }; + return tracker; +} + +function track(node) { + if (getTracker(node)) { + return; + } + + // TODO: Once it's just Fiber we can move this to node._wrapperState + node._valueTracker = trackValueOnNode(node); +} + +function updateValueIfChanged(node) { + if (!node) { + return false; + } + + var tracker = getTracker(node); + // if there is no tracker at this point it's unlikely + // that trying again will succeed + if (!tracker) { + return true; + } + + var lastValue = tracker.getValue(); + var nextValue = getValueFromNode(node); + if (nextValue !== lastValue) { + tracker.setValue(nextValue); + return true; + } + return false; +} + +var eventTypes$1 = { + change: { + phasedRegistrationNames: { + bubbled: 'onChange', + captured: 'onChangeCapture' + }, + dependencies: ['topBlur', 'topChange', 'topClick', 'topFocus', 'topInput', 'topKeyDown', 'topKeyUp', 'topSelectionChange'] + } +}; + +function createAndAccumulateChangeEvent(inst, nativeEvent, target) { + var event = SyntheticEvent$1.getPooled(eventTypes$1.change, inst, nativeEvent, target); + event.type = 'change'; + // Flag this event loop as needing state restore. + enqueueStateRestore(target); + accumulateTwoPhaseDispatches(event); + return event; +} +/** + * For IE shims + */ +var activeElement = null; +var activeElementInst = null; + +/** + * SECTION: handle `change` event + */ +function shouldUseChangeEvent(elem) { + var nodeName = elem.nodeName && elem.nodeName.toLowerCase(); + return nodeName === 'select' || nodeName === 'input' && elem.type === 'file'; +} + +function manualDispatchChangeEvent(nativeEvent) { + var event = createAndAccumulateChangeEvent(activeElementInst, nativeEvent, getEventTarget(nativeEvent)); + + // If change and propertychange bubbled, we'd just bind to it like all the + // other events and have it go through ReactBrowserEventEmitter. Since it + // doesn't, we manually listen for the events and so we have to enqueue and + // process the abstract event manually. + // + // Batching is necessary here in order to ensure that all event handlers run + // before the next rerender (including event handlers attached to ancestor + // elements instead of directly on the input). Without this, controlled + // components don't work properly in conjunction with event bubbling because + // the component is rerendered and the value reverted before all the event + // handlers can run. See https://github.com/facebook/react/issues/708. + batchedUpdates(runEventInBatch, event); +} + +function runEventInBatch(event) { + enqueueEvents(event); + processEventQueue(false); +} + +function getInstIfValueChanged(targetInst) { + var targetNode = getNodeFromInstance$1(targetInst); + if (updateValueIfChanged(targetNode)) { + return targetInst; + } +} + +function getTargetInstForChangeEvent(topLevelType, targetInst) { + if (topLevelType === 'topChange') { + return targetInst; + } +} + +/** + * SECTION: handle `input` event + */ +var isInputEventSupported = false; +if (ExecutionEnvironment.canUseDOM) { + // IE9 claims to support the input event but fails to trigger it when + // deleting text, so we ignore its input events. + isInputEventSupported = isEventSupported('input') && (!document.documentMode || document.documentMode > 9); +} + +/** + * (For IE <=9) Starts tracking propertychange events on the passed-in element + * and override the value property so that we can distinguish user events from + * value changes in JS. + */ +function startWatchingForValueChange(target, targetInst) { + activeElement = target; + activeElementInst = targetInst; + activeElement.attachEvent('onpropertychange', handlePropertyChange); +} + +/** + * (For IE <=9) Removes the event listeners from the currently-tracked element, + * if any exists. + */ +function stopWatchingForValueChange() { + if (!activeElement) { + return; + } + activeElement.detachEvent('onpropertychange', handlePropertyChange); + activeElement = null; + activeElementInst = null; +} + +/** + * (For IE <=9) Handles a propertychange event, sending a `change` event if + * the value of the active element has changed. + */ +function handlePropertyChange(nativeEvent) { + if (nativeEvent.propertyName !== 'value') { + return; + } + if (getInstIfValueChanged(activeElementInst)) { + manualDispatchChangeEvent(nativeEvent); + } +} + +function handleEventsForInputEventPolyfill(topLevelType, target, targetInst) { + if (topLevelType === 'topFocus') { + // In IE9, propertychange fires for most input events but is buggy and + // doesn't fire when text is deleted, but conveniently, selectionchange + // appears to fire in all of the remaining cases so we catch those and + // forward the event if the value has changed + // In either case, we don't want to call the event handler if the value + // is changed from JS so we redefine a setter for `.value` that updates + // our activeElementValue variable, allowing us to ignore those changes + // + // stopWatching() should be a noop here but we call it just in case we + // missed a blur event somehow. + stopWatchingForValueChange(); + startWatchingForValueChange(target, targetInst); + } else if (topLevelType === 'topBlur') { + stopWatchingForValueChange(); + } +} + +// For IE8 and IE9. +function getTargetInstForInputEventPolyfill(topLevelType, targetInst) { + if (topLevelType === 'topSelectionChange' || topLevelType === 'topKeyUp' || topLevelType === 'topKeyDown') { + // On the selectionchange event, the target is just document which isn't + // helpful for us so just check activeElement instead. + // + // 99% of the time, keydown and keyup aren't necessary. IE8 fails to fire + // propertychange on the first input event after setting `value` from a + // script and fires only keydown, keypress, keyup. Catching keyup usually + // gets it and catching keydown lets us fire an event for the first + // keystroke if user does a key repeat (it'll be a little delayed: right + // before the second keystroke). Other input methods (e.g., paste) seem to + // fire selectionchange normally. + return getInstIfValueChanged(activeElementInst); + } +} + +/** + * SECTION: handle `click` event + */ +function shouldUseClickEvent(elem) { + // Use the `click` event to detect changes to checkbox and radio inputs. + // This approach works across all browsers, whereas `change` does not fire + // until `blur` in IE8. + var nodeName = elem.nodeName; + return nodeName && nodeName.toLowerCase() === 'input' && (elem.type === 'checkbox' || elem.type === 'radio'); +} + +function getTargetInstForClickEvent(topLevelType, targetInst) { + if (topLevelType === 'topClick') { + return getInstIfValueChanged(targetInst); + } +} + +function getTargetInstForInputOrChangeEvent(topLevelType, targetInst) { + if (topLevelType === 'topInput' || topLevelType === 'topChange') { + return getInstIfValueChanged(targetInst); + } +} + +function handleControlledInputBlur(inst, node) { + // TODO: In IE, inst is occasionally null. Why? + if (inst == null) { + return; + } + + // Fiber and ReactDOM keep wrapper state in separate places + var state = inst._wrapperState || node._wrapperState; + + if (!state || !state.controlled || node.type !== 'number') { + return; + } + + // If controlled, assign the value attribute to the current value on blur + var value = '' + node.value; + if (node.getAttribute('value') !== value) { + node.setAttribute('value', value); + } +} + +/** + * This plugin creates an `onChange` event that normalizes change events + * across form elements. This event fires at a time when it's possible to + * change the element's value without seeing a flicker. + * + * Supported elements are: + * - input (see `isTextInputElement`) + * - textarea + * - select + */ +var ChangeEventPlugin = { + eventTypes: eventTypes$1, + + _isInputEventSupported: isInputEventSupported, + + extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) { + var targetNode = targetInst ? getNodeFromInstance$1(targetInst) : window; + + var getTargetInstFunc, handleEventFunc; + if (shouldUseChangeEvent(targetNode)) { + getTargetInstFunc = getTargetInstForChangeEvent; + } else if (isTextInputElement(targetNode)) { + if (isInputEventSupported) { + getTargetInstFunc = getTargetInstForInputOrChangeEvent; + } else { + getTargetInstFunc = getTargetInstForInputEventPolyfill; + handleEventFunc = handleEventsForInputEventPolyfill; + } + } else if (shouldUseClickEvent(targetNode)) { + getTargetInstFunc = getTargetInstForClickEvent; + } + + if (getTargetInstFunc) { + var inst = getTargetInstFunc(topLevelType, targetInst); + if (inst) { + var event = createAndAccumulateChangeEvent(inst, nativeEvent, nativeEventTarget); + return event; + } + } + + if (handleEventFunc) { + handleEventFunc(topLevelType, targetNode, targetInst); + } + + // When blurring, set the value attribute for number inputs + if (topLevelType === 'topBlur') { + handleControlledInputBlur(targetInst, targetNode); + } + } +}; + +/** + * Module that is injectable into `EventPluginHub`, that specifies a + * deterministic ordering of `EventPlugin`s. A convenient way to reason about + * plugins, without having to package every one of them. This is better than + * having plugins be ordered in the same order that they are injected because + * that ordering would be influenced by the packaging order. + * `ResponderEventPlugin` must occur before `SimpleEventPlugin` so that + * preventing default on events is convenient in `SimpleEventPlugin` handlers. + */ +var DOMEventPluginOrder = ['ResponderEventPlugin', 'SimpleEventPlugin', 'TapEventPlugin', 'EnterLeaveEventPlugin', 'ChangeEventPlugin', 'SelectEventPlugin', 'BeforeInputEventPlugin']; + +/** + * @interface UIEvent + * @see http://www.w3.org/TR/DOM-Level-3-Events/ + */ +var UIEventInterface = { + view: null, + detail: null +}; + +/** + * @param {object} dispatchConfig Configuration used to dispatch this event. + * @param {string} dispatchMarker Marker identifying the event target. + * @param {object} nativeEvent Native browser event. + * @extends {SyntheticEvent} + */ +function SyntheticUIEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) { + return SyntheticEvent$1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget); +} + +SyntheticEvent$1.augmentClass(SyntheticUIEvent, UIEventInterface); + +/** + * Translation from modifier key to the associated property in the event. + * @see http://www.w3.org/TR/DOM-Level-3-Events/#keys-Modifiers + */ + +var modifierKeyToProp = { + Alt: 'altKey', + Control: 'ctrlKey', + Meta: 'metaKey', + Shift: 'shiftKey' +}; + +// IE8 does not implement getModifierState so we simply map it to the only +// modifier keys exposed by the event itself, does not support Lock-keys. +// Currently, all major browsers except Chrome seems to support Lock-keys. +function modifierStateGetter(keyArg) { + var syntheticEvent = this; + var nativeEvent = syntheticEvent.nativeEvent; + if (nativeEvent.getModifierState) { + return nativeEvent.getModifierState(keyArg); + } + var keyProp = modifierKeyToProp[keyArg]; + return keyProp ? !!nativeEvent[keyProp] : false; +} + +function getEventModifierState(nativeEvent) { + return modifierStateGetter; +} + +/** + * @interface MouseEvent + * @see http://www.w3.org/TR/DOM-Level-3-Events/ + */ +var MouseEventInterface = { + screenX: null, + screenY: null, + clientX: null, + clientY: null, + pageX: null, + pageY: null, + ctrlKey: null, + shiftKey: null, + altKey: null, + metaKey: null, + getModifierState: getEventModifierState, + button: null, + buttons: null, + relatedTarget: function (event) { + return event.relatedTarget || (event.fromElement === event.srcElement ? event.toElement : event.fromElement); + } +}; + +/** + * @param {object} dispatchConfig Configuration used to dispatch this event. + * @param {string} dispatchMarker Marker identifying the event target. + * @param {object} nativeEvent Native browser event. + * @extends {SyntheticUIEvent} + */ +function SyntheticMouseEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) { + return SyntheticUIEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget); +} + +SyntheticUIEvent.augmentClass(SyntheticMouseEvent, MouseEventInterface); + +var eventTypes$2 = { + mouseEnter: { + registrationName: 'onMouseEnter', + dependencies: ['topMouseOut', 'topMouseOver'] + }, + mouseLeave: { + registrationName: 'onMouseLeave', + dependencies: ['topMouseOut', 'topMouseOver'] + } +}; + +var EnterLeaveEventPlugin = { + eventTypes: eventTypes$2, + + /** + * For almost every interaction we care about, there will be both a top-level + * `mouseover` and `mouseout` event that occurs. Only use `mouseout` so that + * we do not extract duplicate events. However, moving the mouse into the + * browser from outside will not fire a `mouseout` event. In this case, we use + * the `mouseover` top-level event. + */ + extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) { + if (topLevelType === 'topMouseOver' && (nativeEvent.relatedTarget || nativeEvent.fromElement)) { + return null; + } + if (topLevelType !== 'topMouseOut' && topLevelType !== 'topMouseOver') { + // Must not be a mouse in or mouse out - ignoring. + return null; + } + + var win; + if (nativeEventTarget.window === nativeEventTarget) { + // `nativeEventTarget` is probably a window object. + win = nativeEventTarget; + } else { + // TODO: Figure out why `ownerDocument` is sometimes undefined in IE8. + var doc = nativeEventTarget.ownerDocument; + if (doc) { + win = doc.defaultView || doc.parentWindow; + } else { + win = window; + } + } + + var from; + var to; + if (topLevelType === 'topMouseOut') { + from = targetInst; + var related = nativeEvent.relatedTarget || nativeEvent.toElement; + to = related ? getClosestInstanceFromNode(related) : null; + } else { + // Moving to a node from outside the window. + from = null; + to = targetInst; + } + + if (from === to) { + // Nothing pertains to our managed components. + return null; + } + + var fromNode = from == null ? win : getNodeFromInstance$1(from); + var toNode = to == null ? win : getNodeFromInstance$1(to); + + var leave = SyntheticMouseEvent.getPooled(eventTypes$2.mouseLeave, from, nativeEvent, nativeEventTarget); + leave.type = 'mouseleave'; + leave.target = fromNode; + leave.relatedTarget = toNode; + + var enter = SyntheticMouseEvent.getPooled(eventTypes$2.mouseEnter, to, nativeEvent, nativeEventTarget); + enter.type = 'mouseenter'; + enter.target = toNode; + enter.relatedTarget = fromNode; + + accumulateEnterLeaveDispatches(leave, enter, from, to); + + return [leave, enter]; + } +}; + +/** + * `ReactInstanceMap` maintains a mapping from a public facing stateful + * instance (key) and the internal representation (value). This allows public + * methods to accept the user facing instance as an argument and map them back + * to internal methods. + * + * Note that this module is currently shared and assumed to be stateless. + * If this becomes an actual Map, that will break. + */ + +/** + * This API should be called `delete` but we'd have to make sure to always + * transform these to strings for IE support. When this transform is fully + * supported we can rename it. + */ + + +function get(key) { + return key._reactInternalFiber; +} + +function has(key) { + return key._reactInternalFiber !== undefined; +} + +function set(key, value) { + key._reactInternalFiber = value; +} + +var ReactInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED; + +var ReactCurrentOwner = ReactInternals.ReactCurrentOwner; +var ReactDebugCurrentFrame = ReactInternals.ReactDebugCurrentFrame; + +function getComponentName(fiber) { + var type = fiber.type; + + if (typeof type === 'string') { + return type; + } + if (typeof type === 'function') { + return type.displayName || type.name; + } + return null; +} + +// Don't change these two values: +var NoEffect = 0; // 0b00000000 +var PerformedWork = 1; // 0b00000001 + +// You can change the rest (and add more). +var Placement = 2; // 0b00000010 +var Update = 4; // 0b00000100 +var PlacementAndUpdate = 6; // 0b00000110 +var Deletion = 8; // 0b00001000 +var ContentReset = 16; // 0b00010000 +var Callback = 32; // 0b00100000 +var Err = 64; // 0b01000000 +var Ref = 128; // 0b10000000 + +var MOUNTING = 1; +var MOUNTED = 2; +var UNMOUNTED = 3; + +function isFiberMountedImpl(fiber) { + var node = fiber; + if (!fiber.alternate) { + // If there is no alternate, this might be a new tree that isn't inserted + // yet. If it is, then it will have a pending insertion effect on it. + if ((node.effectTag & Placement) !== NoEffect) { + return MOUNTING; + } + while (node['return']) { + node = node['return']; + if ((node.effectTag & Placement) !== NoEffect) { + return MOUNTING; + } + } + } else { + while (node['return']) { + node = node['return']; + } + } + if (node.tag === HostRoot) { + // TODO: Check if this was a nested HostRoot when used with + // renderContainerIntoSubtree. + return MOUNTED; + } + // If we didn't hit the root, that means that we're in an disconnected tree + // that has been unmounted. + return UNMOUNTED; +} + +function isFiberMounted(fiber) { + return isFiberMountedImpl(fiber) === MOUNTED; +} + +function isMounted(component) { + { + var owner = ReactCurrentOwner.current; + if (owner !== null && owner.tag === ClassComponent) { + var ownerFiber = owner; + var instance = ownerFiber.stateNode; + warning(instance._warnedAboutRefsInRender, '%s is accessing isMounted inside its render() function. ' + 'render() should be a pure function of props and state. It should ' + 'never access something that requires stale data from the previous ' + 'render, such as refs. Move this logic to componentDidMount and ' + 'componentDidUpdate instead.', getComponentName(ownerFiber) || 'A component'); + instance._warnedAboutRefsInRender = true; + } + } + + var fiber = get(component); + if (!fiber) { + return false; + } + return isFiberMountedImpl(fiber) === MOUNTED; +} + +function assertIsMounted(fiber) { + !(isFiberMountedImpl(fiber) === MOUNTED) ? invariant(false, 'Unable to find node on an unmounted component.') : void 0; +} + +function findCurrentFiberUsingSlowPath(fiber) { + var alternate = fiber.alternate; + if (!alternate) { + // If there is no alternate, then we only need to check if it is mounted. + var state = isFiberMountedImpl(fiber); + !(state !== UNMOUNTED) ? invariant(false, 'Unable to find node on an unmounted component.') : void 0; + if (state === MOUNTING) { + return null; + } + return fiber; + } + // If we have two possible branches, we'll walk backwards up to the root + // to see what path the root points to. On the way we may hit one of the + // special cases and we'll deal with them. + var a = fiber; + var b = alternate; + while (true) { + var parentA = a['return']; + var parentB = parentA ? parentA.alternate : null; + if (!parentA || !parentB) { + // We're at the root. + break; + } + + // If both copies of the parent fiber point to the same child, we can + // assume that the child is current. This happens when we bailout on low + // priority: the bailed out fiber's child reuses the current child. + if (parentA.child === parentB.child) { + var child = parentA.child; + while (child) { + if (child === a) { + // We've determined that A is the current branch. + assertIsMounted(parentA); + return fiber; + } + if (child === b) { + // We've determined that B is the current branch. + assertIsMounted(parentA); + return alternate; + } + child = child.sibling; + } + // We should never have an alternate for any mounting node. So the only + // way this could possibly happen is if this was unmounted, if at all. + invariant(false, 'Unable to find node on an unmounted component.'); + } + + if (a['return'] !== b['return']) { + // The return pointer of A and the return pointer of B point to different + // fibers. We assume that return pointers never criss-cross, so A must + // belong to the child set of A.return, and B must belong to the child + // set of B.return. + a = parentA; + b = parentB; + } else { + // The return pointers point to the same fiber. We'll have to use the + // default, slow path: scan the child sets of each parent alternate to see + // which child belongs to which set. + // + // Search parent A's child set + var didFindChild = false; + var _child = parentA.child; + while (_child) { + if (_child === a) { + didFindChild = true; + a = parentA; + b = parentB; + break; + } + if (_child === b) { + didFindChild = true; + b = parentA; + a = parentB; + break; + } + _child = _child.sibling; + } + if (!didFindChild) { + // Search parent B's child set + _child = parentB.child; + while (_child) { + if (_child === a) { + didFindChild = true; + a = parentB; + b = parentA; + break; + } + if (_child === b) { + didFindChild = true; + b = parentB; + a = parentA; + break; + } + _child = _child.sibling; + } + !didFindChild ? invariant(false, 'Child was not found in either parent set. This indicates a bug in React related to the return pointer. Please file an issue.') : void 0; + } + } + + !(a.alternate === b) ? invariant(false, 'Return fibers should always be each others\' alternates. This error is likely caused by a bug in React. Please file an issue.') : void 0; + } + // If the root is not a host container, we're in a disconnected tree. I.e. + // unmounted. + !(a.tag === HostRoot) ? invariant(false, 'Unable to find node on an unmounted component.') : void 0; + if (a.stateNode.current === a) { + // We've determined that A is the current branch. + return fiber; + } + // Otherwise B has to be current branch. + return alternate; +} + +function findCurrentHostFiber(parent) { + var currentParent = findCurrentFiberUsingSlowPath(parent); + if (!currentParent) { + return null; + } + + // Next we'll drill down this component to find the first HostComponent/Text. + var node = currentParent; + while (true) { + if (node.tag === HostComponent || node.tag === HostText) { + return node; + } else if (node.child) { + node.child['return'] = node; + node = node.child; + continue; + } + if (node === currentParent) { + return null; + } + while (!node.sibling) { + if (!node['return'] || node['return'] === currentParent) { + return null; + } + node = node['return']; + } + node.sibling['return'] = node['return']; + node = node.sibling; + } + // Flow needs the return null here, but ESLint complains about it. + // eslint-disable-next-line no-unreachable + return null; +} + +function findCurrentHostFiberWithNoPortals(parent) { + var currentParent = findCurrentFiberUsingSlowPath(parent); + if (!currentParent) { + return null; + } + + // Next we'll drill down this component to find the first HostComponent/Text. + var node = currentParent; + while (true) { + if (node.tag === HostComponent || node.tag === HostText) { + return node; + } else if (node.child && node.tag !== HostPortal) { + node.child['return'] = node; + node = node.child; + continue; + } + if (node === currentParent) { + return null; + } + while (!node.sibling) { + if (!node['return'] || node['return'] === currentParent) { + return null; + } + node = node['return']; + } + node.sibling['return'] = node['return']; + node = node.sibling; + } + // Flow needs the return null here, but ESLint complains about it. + // eslint-disable-next-line no-unreachable + return null; +} + +var CALLBACK_BOOKKEEPING_POOL_SIZE = 10; +var callbackBookkeepingPool = []; + +/** + * Find the deepest React component completely containing the root of the + * passed-in instance (for use when entire React trees are nested within each + * other). If React trees are not nested, returns null. + */ +function findRootContainerNode(inst) { + // TODO: It may be a good idea to cache this to prevent unnecessary DOM + // traversal, but caching is difficult to do correctly without using a + // mutation observer to listen for all DOM changes. + while (inst['return']) { + inst = inst['return']; + } + if (inst.tag !== HostRoot) { + // This can happen if we're in a detached tree. + return null; + } + return inst.stateNode.containerInfo; +} + +// Used to store ancestor hierarchy in top level callback +function getTopLevelCallbackBookKeeping(topLevelType, nativeEvent, targetInst) { + if (callbackBookkeepingPool.length) { + var instance = callbackBookkeepingPool.pop(); + instance.topLevelType = topLevelType; + instance.nativeEvent = nativeEvent; + instance.targetInst = targetInst; + return instance; + } + return { + topLevelType: topLevelType, + nativeEvent: nativeEvent, + targetInst: targetInst, + ancestors: [] + }; +} + +function releaseTopLevelCallbackBookKeeping(instance) { + instance.topLevelType = null; + instance.nativeEvent = null; + instance.targetInst = null; + instance.ancestors.length = 0; + if (callbackBookkeepingPool.length < CALLBACK_BOOKKEEPING_POOL_SIZE) { + callbackBookkeepingPool.push(instance); + } +} + +function handleTopLevelImpl(bookKeeping) { + var targetInst = bookKeeping.targetInst; + + // Loop through the hierarchy, in case there's any nested components. + // It's important that we build the array of ancestors before calling any + // event handlers, because event handlers can modify the DOM, leading to + // inconsistencies with ReactMount's node cache. See #1105. + var ancestor = targetInst; + do { + if (!ancestor) { + bookKeeping.ancestors.push(ancestor); + break; + } + var root = findRootContainerNode(ancestor); + if (!root) { + break; + } + bookKeeping.ancestors.push(ancestor); + ancestor = getClosestInstanceFromNode(root); + } while (ancestor); + + for (var i = 0; i < bookKeeping.ancestors.length; i++) { + targetInst = bookKeeping.ancestors[i]; + _handleTopLevel(bookKeeping.topLevelType, targetInst, bookKeeping.nativeEvent, getEventTarget(bookKeeping.nativeEvent)); + } +} + +// TODO: can we stop exporting these? +var _enabled = true; +var _handleTopLevel = void 0; + +function setHandleTopLevel(handleTopLevel) { + _handleTopLevel = handleTopLevel; +} + +function setEnabled(enabled) { + _enabled = !!enabled; +} + +function isEnabled() { + return _enabled; +} + +/** + * Traps top-level events by using event bubbling. + * + * @param {string} topLevelType Record from `BrowserEventConstants`. + * @param {string} handlerBaseName Event name (e.g. "click"). + * @param {object} element Element on which to attach listener. + * @return {?object} An object with a remove function which will forcefully + * remove the listener. + * @internal + */ +function trapBubbledEvent(topLevelType, handlerBaseName, element) { + if (!element) { + return null; + } + return EventListener.listen(element, handlerBaseName, dispatchEvent.bind(null, topLevelType)); +} + +/** + * Traps a top-level event by using event capturing. + * + * @param {string} topLevelType Record from `BrowserEventConstants`. + * @param {string} handlerBaseName Event name (e.g. "click"). + * @param {object} element Element on which to attach listener. + * @return {?object} An object with a remove function which will forcefully + * remove the listener. + * @internal + */ +function trapCapturedEvent(topLevelType, handlerBaseName, element) { + if (!element) { + return null; + } + return EventListener.capture(element, handlerBaseName, dispatchEvent.bind(null, topLevelType)); +} + +function dispatchEvent(topLevelType, nativeEvent) { + if (!_enabled) { + return; + } + + var nativeEventTarget = getEventTarget(nativeEvent); + var targetInst = getClosestInstanceFromNode(nativeEventTarget); + if (targetInst !== null && typeof targetInst.tag === 'number' && !isFiberMounted(targetInst)) { + // If we get an event (ex: img onload) before committing that + // component's mount, ignore it for now (that is, treat it as if it was an + // event on a non-React tree). We might also consider queueing events and + // dispatching them after the mount. + targetInst = null; + } + + var bookKeeping = getTopLevelCallbackBookKeeping(topLevelType, nativeEvent, targetInst); + + try { + // Event queue being processed in the same cycle allows + // `preventDefault`. + batchedUpdates(handleTopLevelImpl, bookKeeping); + } finally { + releaseTopLevelCallbackBookKeeping(bookKeeping); + } +} + +var ReactDOMEventListener = Object.freeze({ + get _enabled () { return _enabled; }, + get _handleTopLevel () { return _handleTopLevel; }, + setHandleTopLevel: setHandleTopLevel, + setEnabled: setEnabled, + isEnabled: isEnabled, + trapBubbledEvent: trapBubbledEvent, + trapCapturedEvent: trapCapturedEvent, + dispatchEvent: dispatchEvent +}); + +/** + * Generate a mapping of standard vendor prefixes using the defined style property and event name. + * + * @param {string} styleProp + * @param {string} eventName + * @returns {object} + */ +function makePrefixMap(styleProp, eventName) { + var prefixes = {}; + + prefixes[styleProp.toLowerCase()] = eventName.toLowerCase(); + prefixes['Webkit' + styleProp] = 'webkit' + eventName; + prefixes['Moz' + styleProp] = 'moz' + eventName; + prefixes['ms' + styleProp] = 'MS' + eventName; + prefixes['O' + styleProp] = 'o' + eventName.toLowerCase(); + + return prefixes; +} + +/** + * A list of event names to a configurable list of vendor prefixes. + */ +var vendorPrefixes = { + animationend: makePrefixMap('Animation', 'AnimationEnd'), + animationiteration: makePrefixMap('Animation', 'AnimationIteration'), + animationstart: makePrefixMap('Animation', 'AnimationStart'), + transitionend: makePrefixMap('Transition', 'TransitionEnd') +}; + +/** + * Event names that have already been detected and prefixed (if applicable). + */ +var prefixedEventNames = {}; + +/** + * Element to check for prefixes on. + */ +var style = {}; + +/** + * Bootstrap if a DOM exists. + */ +if (ExecutionEnvironment.canUseDOM) { + style = document.createElement('div').style; + + // On some platforms, in particular some releases of Android 4.x, + // the un-prefixed "animation" and "transition" properties are defined on the + // style object but the events that fire will still be prefixed, so we need + // to check if the un-prefixed events are usable, and if not remove them from the map. + if (!('AnimationEvent' in window)) { + delete vendorPrefixes.animationend.animation; + delete vendorPrefixes.animationiteration.animation; + delete vendorPrefixes.animationstart.animation; + } + + // Same as above + if (!('TransitionEvent' in window)) { + delete vendorPrefixes.transitionend.transition; + } +} + +/** + * Attempts to determine the correct vendor prefixed event name. + * + * @param {string} eventName + * @returns {string} + */ +function getVendorPrefixedEventName(eventName) { + if (prefixedEventNames[eventName]) { + return prefixedEventNames[eventName]; + } else if (!vendorPrefixes[eventName]) { + return eventName; + } + + var prefixMap = vendorPrefixes[eventName]; + + for (var styleProp in prefixMap) { + if (prefixMap.hasOwnProperty(styleProp) && styleProp in style) { + return prefixedEventNames[eventName] = prefixMap[styleProp]; + } + } + + return ''; +} + +/** + * Types of raw signals from the browser caught at the top level. + * + * For events like 'submit' which don't consistently bubble (which we + * trap at a lower node than `document`), binding at `document` would + * cause duplicate events so we don't include them here. + */ +var topLevelTypes$1 = { + topAbort: 'abort', + topAnimationEnd: getVendorPrefixedEventName('animationend') || 'animationend', + topAnimationIteration: getVendorPrefixedEventName('animationiteration') || 'animationiteration', + topAnimationStart: getVendorPrefixedEventName('animationstart') || 'animationstart', + topBlur: 'blur', + topCancel: 'cancel', + topCanPlay: 'canplay', + topCanPlayThrough: 'canplaythrough', + topChange: 'change', + topClick: 'click', + topClose: 'close', + topCompositionEnd: 'compositionend', + topCompositionStart: 'compositionstart', + topCompositionUpdate: 'compositionupdate', + topContextMenu: 'contextmenu', + topCopy: 'copy', + topCut: 'cut', + topDoubleClick: 'dblclick', + topDrag: 'drag', + topDragEnd: 'dragend', + topDragEnter: 'dragenter', + topDragExit: 'dragexit', + topDragLeave: 'dragleave', + topDragOver: 'dragover', + topDragStart: 'dragstart', + topDrop: 'drop', + topDurationChange: 'durationchange', + topEmptied: 'emptied', + topEncrypted: 'encrypted', + topEnded: 'ended', + topError: 'error', + topFocus: 'focus', + topInput: 'input', + topKeyDown: 'keydown', + topKeyPress: 'keypress', + topKeyUp: 'keyup', + topLoadedData: 'loadeddata', + topLoad: 'load', + topLoadedMetadata: 'loadedmetadata', + topLoadStart: 'loadstart', + topMouseDown: 'mousedown', + topMouseMove: 'mousemove', + topMouseOut: 'mouseout', + topMouseOver: 'mouseover', + topMouseUp: 'mouseup', + topPaste: 'paste', + topPause: 'pause', + topPlay: 'play', + topPlaying: 'playing', + topProgress: 'progress', + topRateChange: 'ratechange', + topScroll: 'scroll', + topSeeked: 'seeked', + topSeeking: 'seeking', + topSelectionChange: 'selectionchange', + topStalled: 'stalled', + topSuspend: 'suspend', + topTextInput: 'textInput', + topTimeUpdate: 'timeupdate', + topToggle: 'toggle', + topTouchCancel: 'touchcancel', + topTouchEnd: 'touchend', + topTouchMove: 'touchmove', + topTouchStart: 'touchstart', + topTransitionEnd: getVendorPrefixedEventName('transitionend') || 'transitionend', + topVolumeChange: 'volumechange', + topWaiting: 'waiting', + topWheel: 'wheel' +}; + +var BrowserEventConstants = { + topLevelTypes: topLevelTypes$1 +}; + +function runEventQueueInBatch(events) { + enqueueEvents(events); + processEventQueue(false); +} + +/** + * Streams a fired top-level event to `EventPluginHub` where plugins have the + * opportunity to create `ReactEvent`s to be dispatched. + */ +function handleTopLevel(topLevelType, targetInst, nativeEvent, nativeEventTarget) { + var events = extractEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget); + runEventQueueInBatch(events); +} + +var topLevelTypes = BrowserEventConstants.topLevelTypes; + +/** + * Summary of `ReactBrowserEventEmitter` event handling: + * + * - Top-level delegation is used to trap most native browser events. This + * may only occur in the main thread and is the responsibility of + * ReactDOMEventListener, which is injected and can therefore support + * pluggable event sources. This is the only work that occurs in the main + * thread. + * + * - We normalize and de-duplicate events to account for browser quirks. This + * may be done in the worker thread. + * + * - Forward these native events (with the associated top-level type used to + * trap it) to `EventPluginHub`, which in turn will ask plugins if they want + * to extract any synthetic events. + * + * - The `EventPluginHub` will then process each event by annotating them with + * "dispatches", a sequence of listeners and IDs that care about that event. + * + * - The `EventPluginHub` then dispatches the events. + * + * Overview of React and the event system: + * + * +------------+ . + * | DOM | . + * +------------+ . + * | . + * v . + * +------------+ . + * | ReactEvent | . + * | Listener | . + * +------------+ . +-----------+ + * | . +--------+|SimpleEvent| + * | . | |Plugin | + * +-----|------+ . v +-----------+ + * | | | . +--------------+ +------------+ + * | +-----------.--->|EventPluginHub| | Event | + * | | . | | +-----------+ | Propagators| + * | ReactEvent | . | | |TapEvent | |------------| + * | Emitter | . | |<---+|Plugin | |other plugin| + * | | . | | +-----------+ | utilities | + * | +-----------.--->| | +------------+ + * | | | . +--------------+ + * +-----|------+ . ^ +-----------+ + * | . | |Enter/Leave| + * + . +-------+|Plugin | + * +-------------+ . +-----------+ + * | application | . + * |-------------| . + * | | . + * | | . + * +-------------+ . + * . + * React Core . General Purpose Event Plugin System + */ + +var alreadyListeningTo = {}; +var reactTopListenersCounter = 0; + +/** + * To ensure no conflicts with other potential React instances on the page + */ +var topListenersIDKey = '_reactListenersID' + ('' + Math.random()).slice(2); + +function getListeningForDocument(mountAt) { + // In IE8, `mountAt` is a host object and doesn't have `hasOwnProperty` + // directly. + if (!Object.prototype.hasOwnProperty.call(mountAt, topListenersIDKey)) { + mountAt[topListenersIDKey] = reactTopListenersCounter++; + alreadyListeningTo[mountAt[topListenersIDKey]] = {}; + } + return alreadyListeningTo[mountAt[topListenersIDKey]]; +} + +/** + * We listen for bubbled touch events on the document object. + * + * Firefox v8.01 (and possibly others) exhibited strange behavior when + * mounting `onmousemove` events at some node that was not the document + * element. The symptoms were that if your mouse is not moving over something + * contained within that mount point (for example on the background) the + * top-level listeners for `onmousemove` won't be called. However, if you + * register the `mousemove` on the document object, then it will of course + * catch all `mousemove`s. This along with iOS quirks, justifies restricting + * top-level listeners to the document object only, at least for these + * movement types of events and possibly all events. + * + * @see http://www.quirksmode.org/blog/archives/2010/09/click_event_del.html + * + * Also, `keyup`/`keypress`/`keydown` do not bubble to the window on IE, but + * they bubble to document. + * + * @param {string} registrationName Name of listener (e.g. `onClick`). + * @param {object} contentDocumentHandle Document which owns the container + */ +function listenTo(registrationName, contentDocumentHandle) { + var mountAt = contentDocumentHandle; + var isListening = getListeningForDocument(mountAt); + var dependencies = registrationNameDependencies[registrationName]; + + for (var i = 0; i < dependencies.length; i++) { + var dependency = dependencies[i]; + if (!(isListening.hasOwnProperty(dependency) && isListening[dependency])) { + if (dependency === 'topScroll') { + trapCapturedEvent('topScroll', 'scroll', mountAt); + } else if (dependency === 'topFocus' || dependency === 'topBlur') { + trapCapturedEvent('topFocus', 'focus', mountAt); + trapCapturedEvent('topBlur', 'blur', mountAt); + + // to make sure blur and focus event listeners are only attached once + isListening.topBlur = true; + isListening.topFocus = true; + } else if (dependency === 'topCancel') { + if (isEventSupported('cancel', true)) { + trapCapturedEvent('topCancel', 'cancel', mountAt); + } + isListening.topCancel = true; + } else if (dependency === 'topClose') { + if (isEventSupported('close', true)) { + trapCapturedEvent('topClose', 'close', mountAt); + } + isListening.topClose = true; + } else if (topLevelTypes.hasOwnProperty(dependency)) { + trapBubbledEvent(dependency, topLevelTypes[dependency], mountAt); + } + + isListening[dependency] = true; + } + } +} + +function isListeningToAllDependencies(registrationName, mountAt) { + var isListening = getListeningForDocument(mountAt); + var dependencies = registrationNameDependencies[registrationName]; + for (var i = 0; i < dependencies.length; i++) { + var dependency = dependencies[i]; + if (!(isListening.hasOwnProperty(dependency) && isListening[dependency])) { + return false; + } + } + return true; +} + +/** + * Given any node return the first leaf node without children. + * + * @param {DOMElement|DOMTextNode} node + * @return {DOMElement|DOMTextNode} + */ +function getLeafNode(node) { + while (node && node.firstChild) { + node = node.firstChild; + } + return node; +} + +/** + * Get the next sibling within a container. This will walk up the + * DOM if a node's siblings have been exhausted. + * + * @param {DOMElement|DOMTextNode} node + * @return {?DOMElement|DOMTextNode} + */ +function getSiblingNode(node) { + while (node) { + if (node.nextSibling) { + return node.nextSibling; + } + node = node.parentNode; + } +} + +/** + * Get object describing the nodes which contain characters at offset. + * + * @param {DOMElement|DOMTextNode} root + * @param {number} offset + * @return {?object} + */ +function getNodeForCharacterOffset(root, offset) { + var node = getLeafNode(root); + var nodeStart = 0; + var nodeEnd = 0; + + while (node) { + if (node.nodeType === TEXT_NODE) { + nodeEnd = nodeStart + node.textContent.length; + + if (nodeStart <= offset && nodeEnd >= offset) { + return { + node: node, + offset: offset - nodeStart + }; + } + + nodeStart = nodeEnd; + } + + node = getLeafNode(getSiblingNode(node)); + } +} + +/** + * @param {DOMElement} outerNode + * @return {?object} + */ +function getOffsets(outerNode) { + var selection = window.getSelection && window.getSelection(); + + if (!selection || selection.rangeCount === 0) { + return null; + } + + var anchorNode = selection.anchorNode, + anchorOffset = selection.anchorOffset, + focusNode$$1 = selection.focusNode, + focusOffset = selection.focusOffset; + + // In Firefox, anchorNode and focusNode can be "anonymous divs", e.g. the + // up/down buttons on an . Anonymous divs do not seem to + // expose properties, triggering a "Permission denied error" if any of its + // properties are accessed. The only seemingly possible way to avoid erroring + // is to access a property that typically works for non-anonymous divs and + // catch any error that may otherwise arise. See + // https://bugzilla.mozilla.org/show_bug.cgi?id=208427 + + try { + /* eslint-disable no-unused-expressions */ + anchorNode.nodeType; + focusNode$$1.nodeType; + /* eslint-enable no-unused-expressions */ + } catch (e) { + return null; + } + + return getModernOffsetsFromPoints(outerNode, anchorNode, anchorOffset, focusNode$$1, focusOffset); +} + +/** + * Returns {start, end} where `start` is the character/codepoint index of + * (anchorNode, anchorOffset) within the textContent of `outerNode`, and + * `end` is the index of (focusNode, focusOffset). + * + * Returns null if you pass in garbage input but we should probably just crash. + * + * Exported only for testing. + */ +function getModernOffsetsFromPoints(outerNode, anchorNode, anchorOffset, focusNode$$1, focusOffset) { + var length = 0; + var start = -1; + var end = -1; + var indexWithinAnchor = 0; + var indexWithinFocus = 0; + var node = outerNode; + var parentNode = null; + + outer: while (true) { + var next = null; + + while (true) { + if (node === anchorNode && (anchorOffset === 0 || node.nodeType === TEXT_NODE)) { + start = length + anchorOffset; + } + if (node === focusNode$$1 && (focusOffset === 0 || node.nodeType === TEXT_NODE)) { + end = length + focusOffset; + } + + if (node.nodeType === TEXT_NODE) { + length += node.nodeValue.length; + } + + if ((next = node.firstChild) === null) { + break; + } + // Moving from `node` to its first child `next`. + parentNode = node; + node = next; + } + + while (true) { + if (node === outerNode) { + // If `outerNode` has children, this is always the second time visiting + // it. If it has no children, this is still the first loop, and the only + // valid selection is anchorNode and focusNode both equal to this node + // and both offsets 0, in which case we will have handled above. + break outer; + } + if (parentNode === anchorNode && ++indexWithinAnchor === anchorOffset) { + start = length; + } + if (parentNode === focusNode$$1 && ++indexWithinFocus === focusOffset) { + end = length; + } + if ((next = node.nextSibling) !== null) { + break; + } + node = parentNode; + parentNode = node.parentNode; + } + + // Moving from `node` to its next sibling `next`. + node = next; + } + + if (start === -1 || end === -1) { + // This should never happen. (Would happen if the anchor/focus nodes aren't + // actually inside the passed-in node.) + return null; + } + + return { + start: start, + end: end + }; +} + +/** + * In modern non-IE browsers, we can support both forward and backward + * selections. + * + * Note: IE10+ supports the Selection object, but it does not support + * the `extend` method, which means that even in modern IE, it's not possible + * to programmatically create a backward selection. Thus, for all IE + * versions, we use the old IE API to create our selections. + * + * @param {DOMElement|DOMTextNode} node + * @param {object} offsets + */ +function setOffsets(node, offsets) { + if (!window.getSelection) { + return; + } + + var selection = window.getSelection(); + var length = node[getTextContentAccessor()].length; + var start = Math.min(offsets.start, length); + var end = offsets.end === undefined ? start : Math.min(offsets.end, length); + + // IE 11 uses modern selection, but doesn't support the extend method. + // Flip backward selections, so we can set with a single range. + if (!selection.extend && start > end) { + var temp = end; + end = start; + start = temp; + } + + var startMarker = getNodeForCharacterOffset(node, start); + var endMarker = getNodeForCharacterOffset(node, end); + + if (startMarker && endMarker) { + if (selection.rangeCount === 1 && selection.anchorNode === startMarker.node && selection.anchorOffset === startMarker.offset && selection.focusNode === endMarker.node && selection.focusOffset === endMarker.offset) { + return; + } + var range = document.createRange(); + range.setStart(startMarker.node, startMarker.offset); + selection.removeAllRanges(); + + if (start > end) { + selection.addRange(range); + selection.extend(endMarker.node, endMarker.offset); + } else { + range.setEnd(endMarker.node, endMarker.offset); + selection.addRange(range); + } + } +} + +function isInDocument(node) { + return containsNode(document.documentElement, node); +} + +/** + * @ReactInputSelection: React input selection module. Based on Selection.js, + * but modified to be suitable for react and has a couple of bug fixes (doesn't + * assume buttons have range selections allowed). + * Input selection module for React. + */ + +function hasSelectionCapabilities(elem) { + var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase(); + return nodeName && (nodeName === 'input' && elem.type === 'text' || nodeName === 'textarea' || elem.contentEditable === 'true'); +} + +function getSelectionInformation() { + var focusedElem = getActiveElement(); + return { + focusedElem: focusedElem, + selectionRange: hasSelectionCapabilities(focusedElem) ? getSelection$1(focusedElem) : null + }; +} + +/** + * @restoreSelection: If any selection information was potentially lost, + * restore it. This is useful when performing operations that could remove dom + * nodes and place them back in, resulting in focus being lost. + */ +function restoreSelection(priorSelectionInformation) { + var curFocusedElem = getActiveElement(); + var priorFocusedElem = priorSelectionInformation.focusedElem; + var priorSelectionRange = priorSelectionInformation.selectionRange; + if (curFocusedElem !== priorFocusedElem && isInDocument(priorFocusedElem)) { + if (hasSelectionCapabilities(priorFocusedElem)) { + setSelection(priorFocusedElem, priorSelectionRange); + } + + // Focusing a node can change the scroll position, which is undesirable + var ancestors = []; + var ancestor = priorFocusedElem; + while (ancestor = ancestor.parentNode) { + if (ancestor.nodeType === ELEMENT_NODE) { + ancestors.push({ + element: ancestor, + left: ancestor.scrollLeft, + top: ancestor.scrollTop + }); + } + } + + focusNode(priorFocusedElem); + + for (var i = 0; i < ancestors.length; i++) { + var info = ancestors[i]; + info.element.scrollLeft = info.left; + info.element.scrollTop = info.top; + } + } +} + +/** + * @getSelection: Gets the selection bounds of a focused textarea, input or + * contentEditable node. + * -@input: Look up selection bounds of this input + * -@return {start: selectionStart, end: selectionEnd} + */ +function getSelection$1(input) { + var selection = void 0; + + if ('selectionStart' in input) { + // Modern browser with input or textarea. + selection = { + start: input.selectionStart, + end: input.selectionEnd + }; + } else { + // Content editable or old IE textarea. + selection = getOffsets(input); + } + + return selection || { start: 0, end: 0 }; +} + +/** + * @setSelection: Sets the selection bounds of a textarea or input and focuses + * the input. + * -@input Set selection bounds of this input or textarea + * -@offsets Object of same form that is returned from get* + */ +function setSelection(input, offsets) { + var start = offsets.start, + end = offsets.end; + + if (end === undefined) { + end = start; + } + + if ('selectionStart' in input) { + input.selectionStart = start; + input.selectionEnd = Math.min(end, input.value.length); + } else { + setOffsets(input, offsets); + } +} + +var skipSelectionChangeEvent = ExecutionEnvironment.canUseDOM && 'documentMode' in document && document.documentMode <= 11; + +var eventTypes$3 = { + select: { + phasedRegistrationNames: { + bubbled: 'onSelect', + captured: 'onSelectCapture' + }, + dependencies: ['topBlur', 'topContextMenu', 'topFocus', 'topKeyDown', 'topKeyUp', 'topMouseDown', 'topMouseUp', 'topSelectionChange'] + } +}; + +var activeElement$1 = null; +var activeElementInst$1 = null; +var lastSelection = null; +var mouseDown = false; + +/** + * Get an object which is a unique representation of the current selection. + * + * The return value will not be consistent across nodes or browsers, but + * two identical selections on the same node will return identical objects. + * + * @param {DOMElement} node + * @return {object} + */ +function getSelection(node) { + if ('selectionStart' in node && hasSelectionCapabilities(node)) { + return { + start: node.selectionStart, + end: node.selectionEnd + }; + } else if (window.getSelection) { + var selection = window.getSelection(); + return { + anchorNode: selection.anchorNode, + anchorOffset: selection.anchorOffset, + focusNode: selection.focusNode, + focusOffset: selection.focusOffset + }; + } +} + +/** + * Poll selection to see whether it's changed. + * + * @param {object} nativeEvent + * @return {?SyntheticEvent} + */ +function constructSelectEvent(nativeEvent, nativeEventTarget) { + // Ensure we have the right element, and that the user is not dragging a + // selection (this matches native `select` event behavior). In HTML5, select + // fires only on input and textarea thus if there's no focused element we + // won't dispatch. + if (mouseDown || activeElement$1 == null || activeElement$1 !== getActiveElement()) { + return null; + } + + // Only fire when selection has actually changed. + var currentSelection = getSelection(activeElement$1); + if (!lastSelection || !shallowEqual(lastSelection, currentSelection)) { + lastSelection = currentSelection; + + var syntheticEvent = SyntheticEvent$1.getPooled(eventTypes$3.select, activeElementInst$1, nativeEvent, nativeEventTarget); + + syntheticEvent.type = 'select'; + syntheticEvent.target = activeElement$1; + + accumulateTwoPhaseDispatches(syntheticEvent); + + return syntheticEvent; + } + + return null; +} + +/** + * This plugin creates an `onSelect` event that normalizes select events + * across form elements. + * + * Supported elements are: + * - input (see `isTextInputElement`) + * - textarea + * - contentEditable + * + * This differs from native browser implementations in the following ways: + * - Fires on contentEditable fields as well as inputs. + * - Fires for collapsed selection. + * - Fires after user input. + */ +var SelectEventPlugin = { + eventTypes: eventTypes$3, + + extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) { + var doc = nativeEventTarget.window === nativeEventTarget ? nativeEventTarget.document : nativeEventTarget.nodeType === DOCUMENT_NODE ? nativeEventTarget : nativeEventTarget.ownerDocument; + // Track whether all listeners exists for this plugin. If none exist, we do + // not extract events. See #3639. + if (!doc || !isListeningToAllDependencies('onSelect', doc)) { + return null; + } + + var targetNode = targetInst ? getNodeFromInstance$1(targetInst) : window; + + switch (topLevelType) { + // Track the input node that has focus. + case 'topFocus': + if (isTextInputElement(targetNode) || targetNode.contentEditable === 'true') { + activeElement$1 = targetNode; + activeElementInst$1 = targetInst; + lastSelection = null; + } + break; + case 'topBlur': + activeElement$1 = null; + activeElementInst$1 = null; + lastSelection = null; + break; + // Don't fire the event while the user is dragging. This matches the + // semantics of the native select event. + case 'topMouseDown': + mouseDown = true; + break; + case 'topContextMenu': + case 'topMouseUp': + mouseDown = false; + return constructSelectEvent(nativeEvent, nativeEventTarget); + // Chrome and IE fire non-standard event when selection is changed (and + // sometimes when it hasn't). IE's event fires out of order with respect + // to key and input events on deletion, so we discard it. + // + // Firefox doesn't support selectionchange, so check selection status + // after each key entry. The selection changes after keydown and before + // keyup, but we check on keydown as well in the case of holding down a + // key, when multiple keydown events are fired but only one keyup is. + // This is also our approach for IE handling, for the reason above. + case 'topSelectionChange': + if (skipSelectionChangeEvent) { + break; + } + // falls through + case 'topKeyDown': + case 'topKeyUp': + return constructSelectEvent(nativeEvent, nativeEventTarget); + } + + return null; + } +}; + +/** + * @interface Event + * @see http://www.w3.org/TR/css3-animations/#AnimationEvent-interface + * @see https://developer.mozilla.org/en-US/docs/Web/API/AnimationEvent + */ +var AnimationEventInterface = { + animationName: null, + elapsedTime: null, + pseudoElement: null +}; + +/** + * @param {object} dispatchConfig Configuration used to dispatch this event. + * @param {string} dispatchMarker Marker identifying the event target. + * @param {object} nativeEvent Native browser event. + * @extends {SyntheticEvent} + */ +function SyntheticAnimationEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) { + return SyntheticEvent$1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget); +} + +SyntheticEvent$1.augmentClass(SyntheticAnimationEvent, AnimationEventInterface); + +/** + * @interface Event + * @see http://www.w3.org/TR/clipboard-apis/ + */ +var ClipboardEventInterface = { + clipboardData: function (event) { + return 'clipboardData' in event ? event.clipboardData : window.clipboardData; + } +}; + +/** + * @param {object} dispatchConfig Configuration used to dispatch this event. + * @param {string} dispatchMarker Marker identifying the event target. + * @param {object} nativeEvent Native browser event. + * @extends {SyntheticEvent} + */ +function SyntheticClipboardEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) { + return SyntheticEvent$1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget); +} + +SyntheticEvent$1.augmentClass(SyntheticClipboardEvent, ClipboardEventInterface); + +/** + * @interface FocusEvent + * @see http://www.w3.org/TR/DOM-Level-3-Events/ + */ +var FocusEventInterface = { + relatedTarget: null +}; + +/** + * @param {object} dispatchConfig Configuration used to dispatch this event. + * @param {string} dispatchMarker Marker identifying the event target. + * @param {object} nativeEvent Native browser event. + * @extends {SyntheticUIEvent} + */ +function SyntheticFocusEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) { + return SyntheticUIEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget); +} + +SyntheticUIEvent.augmentClass(SyntheticFocusEvent, FocusEventInterface); + +/** + * `charCode` represents the actual "character code" and is safe to use with + * `String.fromCharCode`. As such, only keys that correspond to printable + * characters produce a valid `charCode`, the only exception to this is Enter. + * The Tab-key is considered non-printable and does not have a `charCode`, + * presumably because it does not produce a tab-character in browsers. + * + * @param {object} nativeEvent Native browser event. + * @return {number} Normalized `charCode` property. + */ +function getEventCharCode(nativeEvent) { + var charCode; + var keyCode = nativeEvent.keyCode; + + if ('charCode' in nativeEvent) { + charCode = nativeEvent.charCode; + + // FF does not set `charCode` for the Enter-key, check against `keyCode`. + if (charCode === 0 && keyCode === 13) { + charCode = 13; + } + } else { + // IE8 does not implement `charCode`, but `keyCode` has the correct value. + charCode = keyCode; + } + + // Some non-printable keys are reported in `charCode`/`keyCode`, discard them. + // Must not discard the (non-)printable Enter-key. + if (charCode >= 32 || charCode === 13) { + return charCode; + } + + return 0; +} + +/** + * Normalization of deprecated HTML5 `key` values + * @see https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent#Key_names + */ +var normalizeKey = { + Esc: 'Escape', + Spacebar: ' ', + Left: 'ArrowLeft', + Up: 'ArrowUp', + Right: 'ArrowRight', + Down: 'ArrowDown', + Del: 'Delete', + Win: 'OS', + Menu: 'ContextMenu', + Apps: 'ContextMenu', + Scroll: 'ScrollLock', + MozPrintableKey: 'Unidentified' +}; + +/** + * Translation from legacy `keyCode` to HTML5 `key` + * Only special keys supported, all others depend on keyboard layout or browser + * @see https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent#Key_names + */ +var translateToKey = { + '8': 'Backspace', + '9': 'Tab', + '12': 'Clear', + '13': 'Enter', + '16': 'Shift', + '17': 'Control', + '18': 'Alt', + '19': 'Pause', + '20': 'CapsLock', + '27': 'Escape', + '32': ' ', + '33': 'PageUp', + '34': 'PageDown', + '35': 'End', + '36': 'Home', + '37': 'ArrowLeft', + '38': 'ArrowUp', + '39': 'ArrowRight', + '40': 'ArrowDown', + '45': 'Insert', + '46': 'Delete', + '112': 'F1', + '113': 'F2', + '114': 'F3', + '115': 'F4', + '116': 'F5', + '117': 'F6', + '118': 'F7', + '119': 'F8', + '120': 'F9', + '121': 'F10', + '122': 'F11', + '123': 'F12', + '144': 'NumLock', + '145': 'ScrollLock', + '224': 'Meta' +}; + +/** + * @param {object} nativeEvent Native browser event. + * @return {string} Normalized `key` property. + */ +function getEventKey(nativeEvent) { + if (nativeEvent.key) { + // Normalize inconsistent values reported by browsers due to + // implementations of a working draft specification. + + // FireFox implements `key` but returns `MozPrintableKey` for all + // printable characters (normalized to `Unidentified`), ignore it. + var key = normalizeKey[nativeEvent.key] || nativeEvent.key; + if (key !== 'Unidentified') { + return key; + } + } + + // Browser does not implement `key`, polyfill as much of it as we can. + if (nativeEvent.type === 'keypress') { + var charCode = getEventCharCode(nativeEvent); + + // The enter-key is technically both printable and non-printable and can + // thus be captured by `keypress`, no other non-printable key should. + return charCode === 13 ? 'Enter' : String.fromCharCode(charCode); + } + if (nativeEvent.type === 'keydown' || nativeEvent.type === 'keyup') { + // While user keyboard layout determines the actual meaning of each + // `keyCode` value, almost all function keys have a universal value. + return translateToKey[nativeEvent.keyCode] || 'Unidentified'; + } + return ''; +} + +/** + * @interface KeyboardEvent + * @see http://www.w3.org/TR/DOM-Level-3-Events/ + */ +var KeyboardEventInterface = { + key: getEventKey, + location: null, + ctrlKey: null, + shiftKey: null, + altKey: null, + metaKey: null, + repeat: null, + locale: null, + getModifierState: getEventModifierState, + // Legacy Interface + charCode: function (event) { + // `charCode` is the result of a KeyPress event and represents the value of + // the actual printable character. + + // KeyPress is deprecated, but its replacement is not yet final and not + // implemented in any major browser. Only KeyPress has charCode. + if (event.type === 'keypress') { + return getEventCharCode(event); + } + return 0; + }, + keyCode: function (event) { + // `keyCode` is the result of a KeyDown/Up event and represents the value of + // physical keyboard key. + + // The actual meaning of the value depends on the users' keyboard layout + // which cannot be detected. Assuming that it is a US keyboard layout + // provides a surprisingly accurate mapping for US and European users. + // Due to this, it is left to the user to implement at this time. + if (event.type === 'keydown' || event.type === 'keyup') { + return event.keyCode; + } + return 0; + }, + which: function (event) { + // `which` is an alias for either `keyCode` or `charCode` depending on the + // type of the event. + if (event.type === 'keypress') { + return getEventCharCode(event); + } + if (event.type === 'keydown' || event.type === 'keyup') { + return event.keyCode; + } + return 0; + } +}; + +/** + * @param {object} dispatchConfig Configuration used to dispatch this event. + * @param {string} dispatchMarker Marker identifying the event target. + * @param {object} nativeEvent Native browser event. + * @extends {SyntheticUIEvent} + */ +function SyntheticKeyboardEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) { + return SyntheticUIEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget); +} + +SyntheticUIEvent.augmentClass(SyntheticKeyboardEvent, KeyboardEventInterface); + +/** + * @interface DragEvent + * @see http://www.w3.org/TR/DOM-Level-3-Events/ + */ +var DragEventInterface = { + dataTransfer: null +}; + +/** + * @param {object} dispatchConfig Configuration used to dispatch this event. + * @param {string} dispatchMarker Marker identifying the event target. + * @param {object} nativeEvent Native browser event. + * @extends {SyntheticMouseEvent} + */ +function SyntheticDragEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) { + return SyntheticMouseEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget); +} + +SyntheticMouseEvent.augmentClass(SyntheticDragEvent, DragEventInterface); + +/** + * @interface TouchEvent + * @see http://www.w3.org/TR/touch-events/ + */ +var TouchEventInterface = { + touches: null, + targetTouches: null, + changedTouches: null, + altKey: null, + metaKey: null, + ctrlKey: null, + shiftKey: null, + getModifierState: getEventModifierState +}; + +/** + * @param {object} dispatchConfig Configuration used to dispatch this event. + * @param {string} dispatchMarker Marker identifying the event target. + * @param {object} nativeEvent Native browser event. + * @extends {SyntheticUIEvent} + */ +function SyntheticTouchEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) { + return SyntheticUIEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget); +} + +SyntheticUIEvent.augmentClass(SyntheticTouchEvent, TouchEventInterface); + +/** + * @interface Event + * @see http://www.w3.org/TR/2009/WD-css3-transitions-20090320/#transition-events- + * @see https://developer.mozilla.org/en-US/docs/Web/API/TransitionEvent + */ +var TransitionEventInterface = { + propertyName: null, + elapsedTime: null, + pseudoElement: null +}; + +/** + * @param {object} dispatchConfig Configuration used to dispatch this event. + * @param {string} dispatchMarker Marker identifying the event target. + * @param {object} nativeEvent Native browser event. + * @extends {SyntheticEvent} + */ +function SyntheticTransitionEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) { + return SyntheticEvent$1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget); +} + +SyntheticEvent$1.augmentClass(SyntheticTransitionEvent, TransitionEventInterface); + +/** + * @interface WheelEvent + * @see http://www.w3.org/TR/DOM-Level-3-Events/ + */ +var WheelEventInterface = { + deltaX: function (event) { + return 'deltaX' in event ? event.deltaX : // Fallback to `wheelDeltaX` for Webkit and normalize (right is positive). + 'wheelDeltaX' in event ? -event.wheelDeltaX : 0; + }, + deltaY: function (event) { + return 'deltaY' in event ? event.deltaY : // Fallback to `wheelDeltaY` for Webkit and normalize (down is positive). + 'wheelDeltaY' in event ? -event.wheelDeltaY : // Fallback to `wheelDelta` for IE<9 and normalize (down is positive). + 'wheelDelta' in event ? -event.wheelDelta : 0; + }, + deltaZ: null, + + // Browsers without "deltaMode" is reporting in raw wheel delta where one + // notch on the scroll is always +/- 120, roughly equivalent to pixels. + // A good approximation of DOM_DELTA_LINE (1) is 5% of viewport size or + // ~40 pixels, for DOM_DELTA_SCREEN (2) it is 87.5% of viewport size. + deltaMode: null +}; + +/** + * @param {object} dispatchConfig Configuration used to dispatch this event. + * @param {string} dispatchMarker Marker identifying the event target. + * @param {object} nativeEvent Native browser event. + * @extends {SyntheticMouseEvent} + */ +function SyntheticWheelEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) { + return SyntheticMouseEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget); +} + +SyntheticMouseEvent.augmentClass(SyntheticWheelEvent, WheelEventInterface); + +/** + * Turns + * ['abort', ...] + * into + * eventTypes = { + * 'abort': { + * phasedRegistrationNames: { + * bubbled: 'onAbort', + * captured: 'onAbortCapture', + * }, + * dependencies: ['topAbort'], + * }, + * ... + * }; + * topLevelEventsToDispatchConfig = { + * 'topAbort': { sameConfig } + * }; + */ +var eventTypes$4 = {}; +var topLevelEventsToDispatchConfig = {}; +['abort', 'animationEnd', 'animationIteration', 'animationStart', 'blur', 'cancel', 'canPlay', 'canPlayThrough', 'click', 'close', 'contextMenu', 'copy', 'cut', 'doubleClick', 'drag', 'dragEnd', 'dragEnter', 'dragExit', 'dragLeave', 'dragOver', 'dragStart', 'drop', 'durationChange', 'emptied', 'encrypted', 'ended', 'error', 'focus', 'input', 'invalid', 'keyDown', 'keyPress', 'keyUp', 'load', 'loadedData', 'loadedMetadata', 'loadStart', 'mouseDown', 'mouseMove', 'mouseOut', 'mouseOver', 'mouseUp', 'paste', 'pause', 'play', 'playing', 'progress', 'rateChange', 'reset', 'scroll', 'seeked', 'seeking', 'stalled', 'submit', 'suspend', 'timeUpdate', 'toggle', 'touchCancel', 'touchEnd', 'touchMove', 'touchStart', 'transitionEnd', 'volumeChange', 'waiting', 'wheel'].forEach(function (event) { + var capitalizedEvent = event[0].toUpperCase() + event.slice(1); + var onEvent = 'on' + capitalizedEvent; + var topEvent = 'top' + capitalizedEvent; + + var type = { + phasedRegistrationNames: { + bubbled: onEvent, + captured: onEvent + 'Capture' + }, + dependencies: [topEvent] + }; + eventTypes$4[event] = type; + topLevelEventsToDispatchConfig[topEvent] = type; +}); + +// Only used in DEV for exhaustiveness validation. +var knownHTMLTopLevelTypes = ['topAbort', 'topCancel', 'topCanPlay', 'topCanPlayThrough', 'topClose', 'topDurationChange', 'topEmptied', 'topEncrypted', 'topEnded', 'topError', 'topInput', 'topInvalid', 'topLoad', 'topLoadedData', 'topLoadedMetadata', 'topLoadStart', 'topPause', 'topPlay', 'topPlaying', 'topProgress', 'topRateChange', 'topReset', 'topSeeked', 'topSeeking', 'topStalled', 'topSubmit', 'topSuspend', 'topTimeUpdate', 'topToggle', 'topVolumeChange', 'topWaiting']; + +var SimpleEventPlugin = { + eventTypes: eventTypes$4, + + extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) { + var dispatchConfig = topLevelEventsToDispatchConfig[topLevelType]; + if (!dispatchConfig) { + return null; + } + var EventConstructor; + switch (topLevelType) { + case 'topKeyPress': + // Firefox creates a keypress event for function keys too. This removes + // the unwanted keypress events. Enter is however both printable and + // non-printable. One would expect Tab to be as well (but it isn't). + if (getEventCharCode(nativeEvent) === 0) { + return null; + } + /* falls through */ + case 'topKeyDown': + case 'topKeyUp': + EventConstructor = SyntheticKeyboardEvent; + break; + case 'topBlur': + case 'topFocus': + EventConstructor = SyntheticFocusEvent; + break; + case 'topClick': + // Firefox creates a click event on right mouse clicks. This removes the + // unwanted click events. + if (nativeEvent.button === 2) { + return null; + } + /* falls through */ + case 'topDoubleClick': + case 'topMouseDown': + case 'topMouseMove': + case 'topMouseUp': + // TODO: Disabled elements should not respond to mouse events + /* falls through */ + case 'topMouseOut': + case 'topMouseOver': + case 'topContextMenu': + EventConstructor = SyntheticMouseEvent; + break; + case 'topDrag': + case 'topDragEnd': + case 'topDragEnter': + case 'topDragExit': + case 'topDragLeave': + case 'topDragOver': + case 'topDragStart': + case 'topDrop': + EventConstructor = SyntheticDragEvent; + break; + case 'topTouchCancel': + case 'topTouchEnd': + case 'topTouchMove': + case 'topTouchStart': + EventConstructor = SyntheticTouchEvent; + break; + case 'topAnimationEnd': + case 'topAnimationIteration': + case 'topAnimationStart': + EventConstructor = SyntheticAnimationEvent; + break; + case 'topTransitionEnd': + EventConstructor = SyntheticTransitionEvent; + break; + case 'topScroll': + EventConstructor = SyntheticUIEvent; + break; + case 'topWheel': + EventConstructor = SyntheticWheelEvent; + break; + case 'topCopy': + case 'topCut': + case 'topPaste': + EventConstructor = SyntheticClipboardEvent; + break; + default: + { + if (knownHTMLTopLevelTypes.indexOf(topLevelType) === -1) { + warning(false, 'SimpleEventPlugin: Unhandled event type, `%s`. This warning ' + 'is likely caused by a bug in React. Please file an issue.', topLevelType); + } + } + // HTML Events + // @see http://www.w3.org/TR/html5/index.html#events-0 + EventConstructor = SyntheticEvent$1; + break; + } + var event = EventConstructor.getPooled(dispatchConfig, targetInst, nativeEvent, nativeEventTarget); + accumulateTwoPhaseDispatches(event); + return event; + } +}; + +setHandleTopLevel(handleTopLevel); + +/** + * Inject modules for resolving DOM hierarchy and plugin ordering. + */ +injection$1.injectEventPluginOrder(DOMEventPluginOrder); +injection$2.injectComponentTree(ReactDOMComponentTree); + +/** + * Some important event plugins included by default (without having to require + * them). + */ +injection$1.injectEventPluginsByName({ + SimpleEventPlugin: SimpleEventPlugin, + EnterLeaveEventPlugin: EnterLeaveEventPlugin, + ChangeEventPlugin: ChangeEventPlugin, + SelectEventPlugin: SelectEventPlugin, + BeforeInputEventPlugin: BeforeInputEventPlugin +}); + +var enableAsyncSubtreeAPI = true; +var enableAsyncSchedulingByDefaultInReactDOM = false; +// Exports ReactDOM.createRoot +var enableCreateRoot = false; +var enableUserTimingAPI = true; + +// Mutating mode (React DOM, React ART, React Native): +var enableMutatingReconciler = true; +// Experimental noop mode (currently unused): +var enableNoopReconciler = false; +// Experimental persistent mode (CS): +var enablePersistentReconciler = false; + +// Helps identify side effects in begin-phase lifecycle hooks and setState reducers: +var debugRenderPhaseSideEffects = false; + +// Only used in www builds. + +var valueStack = []; + +{ + var fiberStack = []; +} + +var index = -1; + +function createCursor(defaultValue) { + return { + current: defaultValue + }; +} + + + +function pop(cursor, fiber) { + if (index < 0) { + { + warning(false, 'Unexpected pop.'); + } + return; + } + + { + if (fiber !== fiberStack[index]) { + warning(false, 'Unexpected Fiber popped.'); + } + } + + cursor.current = valueStack[index]; + + valueStack[index] = null; + + { + fiberStack[index] = null; + } + + index--; +} + +function push(cursor, value, fiber) { + index++; + + valueStack[index] = cursor.current; + + { + fiberStack[index] = fiber; + } + + cursor.current = value; +} + +function reset$1() { + while (index > -1) { + valueStack[index] = null; + + { + fiberStack[index] = null; + } + + index--; + } +} + +var describeComponentFrame = function (name, source, ownerName) { + return '\n in ' + (name || 'Unknown') + (source ? ' (at ' + source.fileName.replace(/^.*[\\\/]/, '') + ':' + source.lineNumber + ')' : ownerName ? ' (created by ' + ownerName + ')' : ''); +}; + +function describeFiber(fiber) { + switch (fiber.tag) { + case IndeterminateComponent: + case FunctionalComponent: + case ClassComponent: + case HostComponent: + var owner = fiber._debugOwner; + var source = fiber._debugSource; + var name = getComponentName(fiber); + var ownerName = null; + if (owner) { + ownerName = getComponentName(owner); + } + return describeComponentFrame(name, source, ownerName); + default: + return ''; + } +} + +// This function can only be called with a work-in-progress fiber and +// only during begin or complete phase. Do not call it under any other +// circumstances. +function getStackAddendumByWorkInProgressFiber(workInProgress) { + var info = ''; + var node = workInProgress; + do { + info += describeFiber(node); + // Otherwise this return pointer might point to the wrong tree: + node = node['return']; + } while (node); + return info; +} + +function getCurrentFiberOwnerName() { + { + var fiber = ReactDebugCurrentFiber.current; + if (fiber === null) { + return null; + } + var owner = fiber._debugOwner; + if (owner !== null && typeof owner !== 'undefined') { + return getComponentName(owner); + } + } + return null; +} + +function getCurrentFiberStackAddendum() { + { + var fiber = ReactDebugCurrentFiber.current; + if (fiber === null) { + return null; + } + // Safe because if current fiber exists, we are reconciling, + // and it is guaranteed to be the work-in-progress version. + return getStackAddendumByWorkInProgressFiber(fiber); + } + return null; +} + +function resetCurrentFiber() { + ReactDebugCurrentFrame.getCurrentStack = null; + ReactDebugCurrentFiber.current = null; + ReactDebugCurrentFiber.phase = null; +} + +function setCurrentFiber(fiber) { + ReactDebugCurrentFrame.getCurrentStack = getCurrentFiberStackAddendum; + ReactDebugCurrentFiber.current = fiber; + ReactDebugCurrentFiber.phase = null; +} + +function setCurrentPhase(phase) { + ReactDebugCurrentFiber.phase = phase; +} + +var ReactDebugCurrentFiber = { + current: null, + phase: null, + resetCurrentFiber: resetCurrentFiber, + setCurrentFiber: setCurrentFiber, + setCurrentPhase: setCurrentPhase, + getCurrentFiberOwnerName: getCurrentFiberOwnerName, + getCurrentFiberStackAddendum: getCurrentFiberStackAddendum +}; + +// Prefix measurements so that it's possible to filter them. +// Longer prefixes are hard to read in DevTools. +var reactEmoji = '\u269B'; +var warningEmoji = '\u26D4'; +var supportsUserTiming = typeof performance !== 'undefined' && typeof performance.mark === 'function' && typeof performance.clearMarks === 'function' && typeof performance.measure === 'function' && typeof performance.clearMeasures === 'function'; + +// Keep track of current fiber so that we know the path to unwind on pause. +// TODO: this looks the same as nextUnitOfWork in scheduler. Can we unify them? +var currentFiber = null; +// If we're in the middle of user code, which fiber and method is it? +// Reusing `currentFiber` would be confusing for this because user code fiber +// can change during commit phase too, but we don't need to unwind it (since +// lifecycles in the commit phase don't resemble a tree). +var currentPhase = null; +var currentPhaseFiber = null; +// Did lifecycle hook schedule an update? This is often a performance problem, +// so we will keep track of it, and include it in the report. +// Track commits caused by cascading updates. +var isCommitting = false; +var hasScheduledUpdateInCurrentCommit = false; +var hasScheduledUpdateInCurrentPhase = false; +var commitCountInCurrentWorkLoop = 0; +var effectCountInCurrentCommit = 0; +var isWaitingForCallback = false; +// During commits, we only show a measurement once per method name +// to avoid stretch the commit phase with measurement overhead. +var labelsInCurrentCommit = new Set(); + +var formatMarkName = function (markName) { + return reactEmoji + ' ' + markName; +}; + +var formatLabel = function (label, warning$$1) { + var prefix = warning$$1 ? warningEmoji + ' ' : reactEmoji + ' '; + var suffix = warning$$1 ? ' Warning: ' + warning$$1 : ''; + return '' + prefix + label + suffix; +}; + +var beginMark = function (markName) { + performance.mark(formatMarkName(markName)); +}; + +var clearMark = function (markName) { + performance.clearMarks(formatMarkName(markName)); +}; + +var endMark = function (label, markName, warning$$1) { + var formattedMarkName = formatMarkName(markName); + var formattedLabel = formatLabel(label, warning$$1); + try { + performance.measure(formattedLabel, formattedMarkName); + } catch (err) {} + // If previous mark was missing for some reason, this will throw. + // This could only happen if React crashed in an unexpected place earlier. + // Don't pile on with more errors. + + // Clear marks immediately to avoid growing buffer. + performance.clearMarks(formattedMarkName); + performance.clearMeasures(formattedLabel); +}; + +var getFiberMarkName = function (label, debugID) { + return label + ' (#' + debugID + ')'; +}; + +var getFiberLabel = function (componentName, isMounted, phase) { + if (phase === null) { + // These are composite component total time measurements. + return componentName + ' [' + (isMounted ? 'update' : 'mount') + ']'; + } else { + // Composite component methods. + return componentName + '.' + phase; + } +}; + +var beginFiberMark = function (fiber, phase) { + var componentName = getComponentName(fiber) || 'Unknown'; + var debugID = fiber._debugID; + var isMounted = fiber.alternate !== null; + var label = getFiberLabel(componentName, isMounted, phase); + + if (isCommitting && labelsInCurrentCommit.has(label)) { + // During the commit phase, we don't show duplicate labels because + // there is a fixed overhead for every measurement, and we don't + // want to stretch the commit phase beyond necessary. + return false; + } + labelsInCurrentCommit.add(label); + + var markName = getFiberMarkName(label, debugID); + beginMark(markName); + return true; +}; + +var clearFiberMark = function (fiber, phase) { + var componentName = getComponentName(fiber) || 'Unknown'; + var debugID = fiber._debugID; + var isMounted = fiber.alternate !== null; + var label = getFiberLabel(componentName, isMounted, phase); + var markName = getFiberMarkName(label, debugID); + clearMark(markName); +}; + +var endFiberMark = function (fiber, phase, warning$$1) { + var componentName = getComponentName(fiber) || 'Unknown'; + var debugID = fiber._debugID; + var isMounted = fiber.alternate !== null; + var label = getFiberLabel(componentName, isMounted, phase); + var markName = getFiberMarkName(label, debugID); + endMark(label, markName, warning$$1); +}; + +var shouldIgnoreFiber = function (fiber) { + // Host components should be skipped in the timeline. + // We could check typeof fiber.type, but does this work with RN? + switch (fiber.tag) { + case HostRoot: + case HostComponent: + case HostText: + case HostPortal: + case ReturnComponent: + case Fragment: + return true; + default: + return false; + } +}; + +var clearPendingPhaseMeasurement = function () { + if (currentPhase !== null && currentPhaseFiber !== null) { + clearFiberMark(currentPhaseFiber, currentPhase); + } + currentPhaseFiber = null; + currentPhase = null; + hasScheduledUpdateInCurrentPhase = false; +}; + +var pauseTimers = function () { + // Stops all currently active measurements so that they can be resumed + // if we continue in a later deferred loop from the same unit of work. + var fiber = currentFiber; + while (fiber) { + if (fiber._debugIsCurrentlyTiming) { + endFiberMark(fiber, null, null); + } + fiber = fiber['return']; + } +}; + +var resumeTimersRecursively = function (fiber) { + if (fiber['return'] !== null) { + resumeTimersRecursively(fiber['return']); + } + if (fiber._debugIsCurrentlyTiming) { + beginFiberMark(fiber, null); + } +}; + +var resumeTimers = function () { + // Resumes all measurements that were active during the last deferred loop. + if (currentFiber !== null) { + resumeTimersRecursively(currentFiber); + } +}; + +function recordEffect() { + if (enableUserTimingAPI) { + effectCountInCurrentCommit++; + } +} + +function recordScheduleUpdate() { + if (enableUserTimingAPI) { + if (isCommitting) { + hasScheduledUpdateInCurrentCommit = true; + } + if (currentPhase !== null && currentPhase !== 'componentWillMount' && currentPhase !== 'componentWillReceiveProps') { + hasScheduledUpdateInCurrentPhase = true; + } + } +} + +function startRequestCallbackTimer() { + if (enableUserTimingAPI) { + if (supportsUserTiming && !isWaitingForCallback) { + isWaitingForCallback = true; + beginMark('(Waiting for async callback...)'); + } + } +} + +function stopRequestCallbackTimer(didExpire) { + if (enableUserTimingAPI) { + if (supportsUserTiming) { + isWaitingForCallback = false; + var warning$$1 = didExpire ? 'React was blocked by main thread' : null; + endMark('(Waiting for async callback...)', '(Waiting for async callback...)', warning$$1); + } + } +} + +function startWorkTimer(fiber) { + if (enableUserTimingAPI) { + if (!supportsUserTiming || shouldIgnoreFiber(fiber)) { + return; + } + // If we pause, this is the fiber to unwind from. + currentFiber = fiber; + if (!beginFiberMark(fiber, null)) { + return; + } + fiber._debugIsCurrentlyTiming = true; + } +} + +function cancelWorkTimer(fiber) { + if (enableUserTimingAPI) { + if (!supportsUserTiming || shouldIgnoreFiber(fiber)) { + return; + } + // Remember we shouldn't complete measurement for this fiber. + // Otherwise flamechart will be deep even for small updates. + fiber._debugIsCurrentlyTiming = false; + clearFiberMark(fiber, null); + } +} + +function stopWorkTimer(fiber) { + if (enableUserTimingAPI) { + if (!supportsUserTiming || shouldIgnoreFiber(fiber)) { + return; + } + // If we pause, its parent is the fiber to unwind from. + currentFiber = fiber['return']; + if (!fiber._debugIsCurrentlyTiming) { + return; + } + fiber._debugIsCurrentlyTiming = false; + endFiberMark(fiber, null, null); + } +} + +function stopFailedWorkTimer(fiber) { + if (enableUserTimingAPI) { + if (!supportsUserTiming || shouldIgnoreFiber(fiber)) { + return; + } + // If we pause, its parent is the fiber to unwind from. + currentFiber = fiber['return']; + if (!fiber._debugIsCurrentlyTiming) { + return; + } + fiber._debugIsCurrentlyTiming = false; + var warning$$1 = 'An error was thrown inside this error boundary'; + endFiberMark(fiber, null, warning$$1); + } +} + +function startPhaseTimer(fiber, phase) { + if (enableUserTimingAPI) { + if (!supportsUserTiming) { + return; + } + clearPendingPhaseMeasurement(); + if (!beginFiberMark(fiber, phase)) { + return; + } + currentPhaseFiber = fiber; + currentPhase = phase; + } +} + +function stopPhaseTimer() { + if (enableUserTimingAPI) { + if (!supportsUserTiming) { + return; + } + if (currentPhase !== null && currentPhaseFiber !== null) { + var warning$$1 = hasScheduledUpdateInCurrentPhase ? 'Scheduled a cascading update' : null; + endFiberMark(currentPhaseFiber, currentPhase, warning$$1); + } + currentPhase = null; + currentPhaseFiber = null; + } +} + +function startWorkLoopTimer(nextUnitOfWork) { + if (enableUserTimingAPI) { + currentFiber = nextUnitOfWork; + if (!supportsUserTiming) { + return; + } + commitCountInCurrentWorkLoop = 0; + // This is top level call. + // Any other measurements are performed within. + beginMark('(React Tree Reconciliation)'); + // Resume any measurements that were in progress during the last loop. + resumeTimers(); + } +} + +function stopWorkLoopTimer(interruptedBy) { + if (enableUserTimingAPI) { + if (!supportsUserTiming) { + return; + } + var warning$$1 = null; + if (interruptedBy !== null) { + if (interruptedBy.tag === HostRoot) { + warning$$1 = 'A top-level update interrupted the previous render'; + } else { + var componentName = getComponentName(interruptedBy) || 'Unknown'; + warning$$1 = 'An update to ' + componentName + ' interrupted the previous render'; + } + } else if (commitCountInCurrentWorkLoop > 1) { + warning$$1 = 'There were cascading updates'; + } + commitCountInCurrentWorkLoop = 0; + // Pause any measurements until the next loop. + pauseTimers(); + endMark('(React Tree Reconciliation)', '(React Tree Reconciliation)', warning$$1); + } +} + +function startCommitTimer() { + if (enableUserTimingAPI) { + if (!supportsUserTiming) { + return; + } + isCommitting = true; + hasScheduledUpdateInCurrentCommit = false; + labelsInCurrentCommit.clear(); + beginMark('(Committing Changes)'); + } +} + +function stopCommitTimer() { + if (enableUserTimingAPI) { + if (!supportsUserTiming) { + return; + } + + var warning$$1 = null; + if (hasScheduledUpdateInCurrentCommit) { + warning$$1 = 'Lifecycle hook scheduled a cascading update'; + } else if (commitCountInCurrentWorkLoop > 0) { + warning$$1 = 'Caused by a cascading update in earlier commit'; + } + hasScheduledUpdateInCurrentCommit = false; + commitCountInCurrentWorkLoop++; + isCommitting = false; + labelsInCurrentCommit.clear(); + + endMark('(Committing Changes)', '(Committing Changes)', warning$$1); + } +} + +function startCommitHostEffectsTimer() { + if (enableUserTimingAPI) { + if (!supportsUserTiming) { + return; + } + effectCountInCurrentCommit = 0; + beginMark('(Committing Host Effects)'); + } +} + +function stopCommitHostEffectsTimer() { + if (enableUserTimingAPI) { + if (!supportsUserTiming) { + return; + } + var count = effectCountInCurrentCommit; + effectCountInCurrentCommit = 0; + endMark('(Committing Host Effects: ' + count + ' Total)', '(Committing Host Effects)', null); + } +} + +function startCommitLifeCyclesTimer() { + if (enableUserTimingAPI) { + if (!supportsUserTiming) { + return; + } + effectCountInCurrentCommit = 0; + beginMark('(Calling Lifecycle Methods)'); + } +} + +function stopCommitLifeCyclesTimer() { + if (enableUserTimingAPI) { + if (!supportsUserTiming) { + return; + } + var count = effectCountInCurrentCommit; + effectCountInCurrentCommit = 0; + endMark('(Calling Lifecycle Methods: ' + count + ' Total)', '(Calling Lifecycle Methods)', null); + } +} + +{ + var warnedAboutMissingGetChildContext = {}; +} + +// A cursor to the current merged context object on the stack. +var contextStackCursor = createCursor(emptyObject); +// A cursor to a boolean indicating whether the context has changed. +var didPerformWorkStackCursor = createCursor(false); +// Keep track of the previous context object that was on the stack. +// We use this to get access to the parent context after we have already +// pushed the next context provider, and now need to merge their contexts. +var previousContext = emptyObject; + +function getUnmaskedContext(workInProgress) { + var hasOwnContext = isContextProvider(workInProgress); + if (hasOwnContext) { + // If the fiber is a context provider itself, when we read its context + // we have already pushed its own child context on the stack. A context + // provider should not "see" its own child context. Therefore we read the + // previous (parent) context instead for a context provider. + return previousContext; + } + return contextStackCursor.current; +} + +function cacheContext(workInProgress, unmaskedContext, maskedContext) { + var instance = workInProgress.stateNode; + instance.__reactInternalMemoizedUnmaskedChildContext = unmaskedContext; + instance.__reactInternalMemoizedMaskedChildContext = maskedContext; +} + +function getMaskedContext(workInProgress, unmaskedContext) { + var type = workInProgress.type; + var contextTypes = type.contextTypes; + if (!contextTypes) { + return emptyObject; + } + + // Avoid recreating masked context unless unmasked context has changed. + // Failing to do this will result in unnecessary calls to componentWillReceiveProps. + // This may trigger infinite loops if componentWillReceiveProps calls setState. + var instance = workInProgress.stateNode; + if (instance && instance.__reactInternalMemoizedUnmaskedChildContext === unmaskedContext) { + return instance.__reactInternalMemoizedMaskedChildContext; + } + + var context = {}; + for (var key in contextTypes) { + context[key] = unmaskedContext[key]; + } + + { + var name = getComponentName(workInProgress) || 'Unknown'; + checkPropTypes(contextTypes, context, 'context', name, ReactDebugCurrentFiber.getCurrentFiberStackAddendum); + } + + // Cache unmasked context so we can avoid recreating masked context unless necessary. + // Context is created before the class component is instantiated so check for instance. + if (instance) { + cacheContext(workInProgress, unmaskedContext, context); + } + + return context; +} + +function hasContextChanged() { + return didPerformWorkStackCursor.current; +} + +function isContextConsumer(fiber) { + return fiber.tag === ClassComponent && fiber.type.contextTypes != null; +} + +function isContextProvider(fiber) { + return fiber.tag === ClassComponent && fiber.type.childContextTypes != null; +} + +function popContextProvider(fiber) { + if (!isContextProvider(fiber)) { + return; + } + + pop(didPerformWorkStackCursor, fiber); + pop(contextStackCursor, fiber); +} + +function popTopLevelContextObject(fiber) { + pop(didPerformWorkStackCursor, fiber); + pop(contextStackCursor, fiber); +} + +function pushTopLevelContextObject(fiber, context, didChange) { + !(contextStackCursor.cursor == null) ? invariant(false, 'Unexpected context found on stack. This error is likely caused by a bug in React. Please file an issue.') : void 0; + + push(contextStackCursor, context, fiber); + push(didPerformWorkStackCursor, didChange, fiber); +} + +function processChildContext(fiber, parentContext) { + var instance = fiber.stateNode; + var childContextTypes = fiber.type.childContextTypes; + + // TODO (bvaughn) Replace this behavior with an invariant() in the future. + // It has only been added in Fiber to match the (unintentional) behavior in Stack. + if (typeof instance.getChildContext !== 'function') { + { + var componentName = getComponentName(fiber) || 'Unknown'; + + if (!warnedAboutMissingGetChildContext[componentName]) { + warnedAboutMissingGetChildContext[componentName] = true; + warning(false, '%s.childContextTypes is specified but there is no getChildContext() method ' + 'on the instance. You can either define getChildContext() on %s or remove ' + 'childContextTypes from it.', componentName, componentName); + } + } + return parentContext; + } + + var childContext = void 0; + { + ReactDebugCurrentFiber.setCurrentPhase('getChildContext'); + } + startPhaseTimer(fiber, 'getChildContext'); + childContext = instance.getChildContext(); + stopPhaseTimer(); + { + ReactDebugCurrentFiber.setCurrentPhase(null); + } + for (var contextKey in childContext) { + !(contextKey in childContextTypes) ? invariant(false, '%s.getChildContext(): key "%s" is not defined in childContextTypes.', getComponentName(fiber) || 'Unknown', contextKey) : void 0; + } + { + var name = getComponentName(fiber) || 'Unknown'; + checkPropTypes(childContextTypes, childContext, 'child context', name, + // In practice, there is one case in which we won't get a stack. It's when + // somebody calls unstable_renderSubtreeIntoContainer() and we process + // context from the parent component instance. The stack will be missing + // because it's outside of the reconciliation, and so the pointer has not + // been set. This is rare and doesn't matter. We'll also remove that API. + ReactDebugCurrentFiber.getCurrentFiberStackAddendum); + } + + return _assign({}, parentContext, childContext); +} + +function pushContextProvider(workInProgress) { + if (!isContextProvider(workInProgress)) { + return false; + } + + var instance = workInProgress.stateNode; + // We push the context as early as possible to ensure stack integrity. + // If the instance does not exist yet, we will push null at first, + // and replace it on the stack later when invalidating the context. + var memoizedMergedChildContext = instance && instance.__reactInternalMemoizedMergedChildContext || emptyObject; + + // Remember the parent context so we can merge with it later. + // Inherit the parent's did-perform-work value to avoid inadvertently blocking updates. + previousContext = contextStackCursor.current; + push(contextStackCursor, memoizedMergedChildContext, workInProgress); + push(didPerformWorkStackCursor, didPerformWorkStackCursor.current, workInProgress); + + return true; +} + +function invalidateContextProvider(workInProgress, didChange) { + var instance = workInProgress.stateNode; + !instance ? invariant(false, 'Expected to have an instance by this point. This error is likely caused by a bug in React. Please file an issue.') : void 0; + + if (didChange) { + // Merge parent and own context. + // Skip this if we're not updating due to sCU. + // This avoids unnecessarily recomputing memoized values. + var mergedContext = processChildContext(workInProgress, previousContext); + instance.__reactInternalMemoizedMergedChildContext = mergedContext; + + // Replace the old (or empty) context with the new one. + // It is important to unwind the context in the reverse order. + pop(didPerformWorkStackCursor, workInProgress); + pop(contextStackCursor, workInProgress); + // Now push the new context and mark that it has changed. + push(contextStackCursor, mergedContext, workInProgress); + push(didPerformWorkStackCursor, didChange, workInProgress); + } else { + pop(didPerformWorkStackCursor, workInProgress); + push(didPerformWorkStackCursor, didChange, workInProgress); + } +} + +function resetContext() { + previousContext = emptyObject; + contextStackCursor.current = emptyObject; + didPerformWorkStackCursor.current = false; +} + +function findCurrentUnmaskedContext(fiber) { + // Currently this is only used with renderSubtreeIntoContainer; not sure if it + // makes sense elsewhere + !(isFiberMounted(fiber) && fiber.tag === ClassComponent) ? invariant(false, 'Expected subtree parent to be a mounted class component. This error is likely caused by a bug in React. Please file an issue.') : void 0; + + var node = fiber; + while (node.tag !== HostRoot) { + if (isContextProvider(node)) { + return node.stateNode.__reactInternalMemoizedMergedChildContext; + } + var parent = node['return']; + !parent ? invariant(false, 'Found unexpected detached subtree parent. This error is likely caused by a bug in React. Please file an issue.') : void 0; + node = parent; + } + return node.stateNode.context; +} + +var NoWork = 0; // TODO: Use an opaque type once ESLint et al support the syntax + +var Sync = 1; +var Never = 2147483647; // Max int32: Math.pow(2, 31) - 1 + +var UNIT_SIZE = 10; +var MAGIC_NUMBER_OFFSET = 2; + +// 1 unit of expiration time represents 10ms. +function msToExpirationTime(ms) { + // Always add an offset so that we don't clash with the magic number for NoWork. + return (ms / UNIT_SIZE | 0) + MAGIC_NUMBER_OFFSET; +} + +function expirationTimeToMs(expirationTime) { + return (expirationTime - MAGIC_NUMBER_OFFSET) * UNIT_SIZE; +} + +function ceiling(num, precision) { + return ((num / precision | 0) + 1) * precision; +} + +function computeExpirationBucket(currentTime, expirationInMs, bucketSizeMs) { + return ceiling(currentTime + expirationInMs / UNIT_SIZE, bucketSizeMs / UNIT_SIZE); +} + +var NoContext = 0; +var AsyncUpdates = 1; + +{ + var hasBadMapPolyfill = false; + try { + var nonExtensibleObject = Object.preventExtensions({}); + /* eslint-disable no-new */ + + /* eslint-enable no-new */ + } catch (e) { + // TODO: Consider warning about bad polyfills + hasBadMapPolyfill = true; + } +} + +// A Fiber is work on a Component that needs to be done or was done. There can +// be more than one per component. + + +{ + var debugCounter = 1; +} + +function FiberNode(tag, key, internalContextTag) { + // Instance + this.tag = tag; + this.key = key; + this.type = null; + this.stateNode = null; + + // Fiber + this['return'] = null; + this.child = null; + this.sibling = null; + this.index = 0; + + this.ref = null; + + this.pendingProps = null; + this.memoizedProps = null; + this.updateQueue = null; + this.memoizedState = null; + + this.internalContextTag = internalContextTag; + + // Effects + this.effectTag = NoEffect; + this.nextEffect = null; + + this.firstEffect = null; + this.lastEffect = null; + + this.expirationTime = NoWork; + + this.alternate = null; + + { + this._debugID = debugCounter++; + this._debugSource = null; + this._debugOwner = null; + this._debugIsCurrentlyTiming = false; + if (!hasBadMapPolyfill && typeof Object.preventExtensions === 'function') { + Object.preventExtensions(this); + } + } +} + +// This is a constructor function, rather than a POJO constructor, still +// please ensure we do the following: +// 1) Nobody should add any instance methods on this. Instance methods can be +// more difficult to predict when they get optimized and they are almost +// never inlined properly in static compilers. +// 2) Nobody should rely on `instanceof Fiber` for type testing. We should +// always know when it is a fiber. +// 3) We might want to experiment with using numeric keys since they are easier +// to optimize in a non-JIT environment. +// 4) We can easily go from a constructor to a createFiber object literal if that +// is faster. +// 5) It should be easy to port this to a C struct and keep a C implementation +// compatible. +var createFiber = function (tag, key, internalContextTag) { + // $FlowFixMe: the shapes are exact here but Flow doesn't like constructors + return new FiberNode(tag, key, internalContextTag); +}; + +function shouldConstruct(Component) { + return !!(Component.prototype && Component.prototype.isReactComponent); +} + +// This is used to create an alternate fiber to do work on. +function createWorkInProgress(current, pendingProps, expirationTime) { + var workInProgress = current.alternate; + if (workInProgress === null) { + // We use a double buffering pooling technique because we know that we'll + // only ever need at most two versions of a tree. We pool the "other" unused + // node that we're free to reuse. This is lazily created to avoid allocating + // extra objects for things that are never updated. It also allow us to + // reclaim the extra memory if needed. + workInProgress = createFiber(current.tag, current.key, current.internalContextTag); + workInProgress.type = current.type; + workInProgress.stateNode = current.stateNode; + + { + // DEV-only fields + workInProgress._debugID = current._debugID; + workInProgress._debugSource = current._debugSource; + workInProgress._debugOwner = current._debugOwner; + } + + workInProgress.alternate = current; + current.alternate = workInProgress; + } else { + // We already have an alternate. + // Reset the effect tag. + workInProgress.effectTag = NoEffect; + + // The effect list is no longer valid. + workInProgress.nextEffect = null; + workInProgress.firstEffect = null; + workInProgress.lastEffect = null; + } + + workInProgress.expirationTime = expirationTime; + workInProgress.pendingProps = pendingProps; + + workInProgress.child = current.child; + workInProgress.memoizedProps = current.memoizedProps; + workInProgress.memoizedState = current.memoizedState; + workInProgress.updateQueue = current.updateQueue; + + // These will be overridden during the parent's reconciliation + workInProgress.sibling = current.sibling; + workInProgress.index = current.index; + workInProgress.ref = current.ref; + + return workInProgress; +} + +function createHostRootFiber() { + var fiber = createFiber(HostRoot, null, NoContext); + return fiber; +} + +function createFiberFromElement(element, internalContextTag, expirationTime) { + var owner = null; + { + owner = element._owner; + } + + var fiber = void 0; + var type = element.type, + key = element.key; + + if (typeof type === 'function') { + fiber = shouldConstruct(type) ? createFiber(ClassComponent, key, internalContextTag) : createFiber(IndeterminateComponent, key, internalContextTag); + fiber.type = type; + fiber.pendingProps = element.props; + } else if (typeof type === 'string') { + fiber = createFiber(HostComponent, key, internalContextTag); + fiber.type = type; + fiber.pendingProps = element.props; + } else if (typeof type === 'object' && type !== null && typeof type.tag === 'number') { + // Currently assumed to be a continuation and therefore is a fiber already. + // TODO: The yield system is currently broken for updates in some cases. + // The reified yield stores a fiber, but we don't know which fiber that is; + // the current or a workInProgress? When the continuation gets rendered here + // we don't know if we can reuse that fiber or if we need to clone it. + // There is probably a clever way to restructure this. + fiber = type; + fiber.pendingProps = element.props; + } else { + var info = ''; + { + if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) { + info += ' You likely forgot to export your component from the file ' + "it's defined in, or you might have mixed up default and named imports."; + } + var ownerName = owner ? getComponentName(owner) : null; + if (ownerName) { + info += '\n\nCheck the render method of `' + ownerName + '`.'; + } + } + invariant(false, 'Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: %s.%s', type == null ? type : typeof type, info); + } + + { + fiber._debugSource = element._source; + fiber._debugOwner = element._owner; + } + + fiber.expirationTime = expirationTime; + + return fiber; +} + +function createFiberFromFragment(elements, internalContextTag, expirationTime, key) { + var fiber = createFiber(Fragment, key, internalContextTag); + fiber.pendingProps = elements; + fiber.expirationTime = expirationTime; + return fiber; +} + +function createFiberFromText(content, internalContextTag, expirationTime) { + var fiber = createFiber(HostText, null, internalContextTag); + fiber.pendingProps = content; + fiber.expirationTime = expirationTime; + return fiber; +} + +function createFiberFromHostInstanceForDeletion() { + var fiber = createFiber(HostComponent, null, NoContext); + fiber.type = 'DELETED'; + return fiber; +} + +function createFiberFromCall(call, internalContextTag, expirationTime) { + var fiber = createFiber(CallComponent, call.key, internalContextTag); + fiber.type = call.handler; + fiber.pendingProps = call; + fiber.expirationTime = expirationTime; + return fiber; +} + +function createFiberFromReturn(returnNode, internalContextTag, expirationTime) { + var fiber = createFiber(ReturnComponent, null, internalContextTag); + fiber.expirationTime = expirationTime; + return fiber; +} + +function createFiberFromPortal(portal, internalContextTag, expirationTime) { + var fiber = createFiber(HostPortal, portal.key, internalContextTag); + fiber.pendingProps = portal.children || []; + fiber.expirationTime = expirationTime; + fiber.stateNode = { + containerInfo: portal.containerInfo, + pendingChildren: null, // Used by persistent updates + implementation: portal.implementation + }; + return fiber; +} + +function createFiberRoot(containerInfo, hydrate) { + // Cyclic construction. This cheats the type system right now because + // stateNode is any. + var uninitializedFiber = createHostRootFiber(); + var root = { + current: uninitializedFiber, + containerInfo: containerInfo, + pendingChildren: null, + remainingExpirationTime: NoWork, + isReadyForCommit: false, + finishedWork: null, + context: null, + pendingContext: null, + hydrate: hydrate, + nextScheduledRoot: null + }; + uninitializedFiber.stateNode = root; + return root; +} + +var onCommitFiberRoot = null; +var onCommitFiberUnmount = null; +var hasLoggedError = false; + +function catchErrors(fn) { + return function (arg) { + try { + return fn(arg); + } catch (err) { + if (true && !hasLoggedError) { + hasLoggedError = true; + warning(false, 'React DevTools encountered an error: %s', err); + } + } + }; +} + +function injectInternals(internals) { + if (typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ === 'undefined') { + // No DevTools + return false; + } + var hook = __REACT_DEVTOOLS_GLOBAL_HOOK__; + if (hook.isDisabled) { + // This isn't a real property on the hook, but it can be set to opt out + // of DevTools integration and associated warnings and logs. + // https://github.com/facebook/react/issues/3877 + return true; + } + if (!hook.supportsFiber) { + { + warning(false, 'The installed version of React DevTools is too old and will not work ' + 'with the current version of React. Please update React DevTools. ' + 'https://fb.me/react-devtools'); + } + // DevTools exists, even though it doesn't support Fiber. + return true; + } + try { + var rendererID = hook.inject(internals); + // We have successfully injected, so now it is safe to set up hooks. + onCommitFiberRoot = catchErrors(function (root) { + return hook.onCommitFiberRoot(rendererID, root); + }); + onCommitFiberUnmount = catchErrors(function (fiber) { + return hook.onCommitFiberUnmount(rendererID, fiber); + }); + } catch (err) { + // Catch all errors because it is unsafe to throw during initialization. + { + warning(false, 'React DevTools encountered an error: %s.', err); + } + } + // DevTools exists + return true; +} + +function onCommitRoot(root) { + if (typeof onCommitFiberRoot === 'function') { + onCommitFiberRoot(root); + } +} + +function onCommitUnmount(fiber) { + if (typeof onCommitFiberUnmount === 'function') { + onCommitFiberUnmount(fiber); + } +} + +{ + var didWarnUpdateInsideUpdate = false; +} + +// Callbacks are not validated until invocation + + +// Singly linked-list of updates. When an update is scheduled, it is added to +// the queue of the current fiber and the work-in-progress fiber. The two queues +// are separate but they share a persistent structure. +// +// During reconciliation, updates are removed from the work-in-progress fiber, +// but they remain on the current fiber. That ensures that if a work-in-progress +// is aborted, the aborted updates are recovered by cloning from current. +// +// The work-in-progress queue is always a subset of the current queue. +// +// When the tree is committed, the work-in-progress becomes the current. + + +function createUpdateQueue(baseState) { + var queue = { + baseState: baseState, + expirationTime: NoWork, + first: null, + last: null, + callbackList: null, + hasForceUpdate: false, + isInitialized: false + }; + { + queue.isProcessing = false; + } + return queue; +} + +function insertUpdateIntoQueue(queue, update) { + // Append the update to the end of the list. + if (queue.last === null) { + // Queue is empty + queue.first = queue.last = update; + } else { + queue.last.next = update; + queue.last = update; + } + if (queue.expirationTime === NoWork || queue.expirationTime > update.expirationTime) { + queue.expirationTime = update.expirationTime; + } +} + +function insertUpdateIntoFiber(fiber, update) { + // We'll have at least one and at most two distinct update queues. + var alternateFiber = fiber.alternate; + var queue1 = fiber.updateQueue; + if (queue1 === null) { + // TODO: We don't know what the base state will be until we begin work. + // It depends on which fiber is the next current. Initialize with an empty + // base state, then set to the memoizedState when rendering. Not super + // happy with this approach. + queue1 = fiber.updateQueue = createUpdateQueue(null); + } + + var queue2 = void 0; + if (alternateFiber !== null) { + queue2 = alternateFiber.updateQueue; + if (queue2 === null) { + queue2 = alternateFiber.updateQueue = createUpdateQueue(null); + } + } else { + queue2 = null; + } + queue2 = queue2 !== queue1 ? queue2 : null; + + // Warn if an update is scheduled from inside an updater function. + { + if ((queue1.isProcessing || queue2 !== null && queue2.isProcessing) && !didWarnUpdateInsideUpdate) { + warning(false, 'An update (setState, replaceState, or forceUpdate) was scheduled ' + 'from inside an update function. Update functions should be pure, ' + 'with zero side-effects. Consider using componentDidUpdate or a ' + 'callback.'); + didWarnUpdateInsideUpdate = true; + } + } + + // If there's only one queue, add the update to that queue and exit. + if (queue2 === null) { + insertUpdateIntoQueue(queue1, update); + return; + } + + // If either queue is empty, we need to add to both queues. + if (queue1.last === null || queue2.last === null) { + insertUpdateIntoQueue(queue1, update); + insertUpdateIntoQueue(queue2, update); + return; + } + + // If both lists are not empty, the last update is the same for both lists + // because of structural sharing. So, we should only append to one of + // the lists. + insertUpdateIntoQueue(queue1, update); + // But we still need to update the `last` pointer of queue2. + queue2.last = update; +} + +function getUpdateExpirationTime(fiber) { + if (fiber.tag !== ClassComponent && fiber.tag !== HostRoot) { + return NoWork; + } + var updateQueue = fiber.updateQueue; + if (updateQueue === null) { + return NoWork; + } + return updateQueue.expirationTime; +} + +function getStateFromUpdate(update, instance, prevState, props) { + var partialState = update.partialState; + if (typeof partialState === 'function') { + var updateFn = partialState; + + // Invoke setState callback an extra time to help detect side-effects. + if (debugRenderPhaseSideEffects) { + updateFn.call(instance, prevState, props); + } + + return updateFn.call(instance, prevState, props); + } else { + return partialState; + } +} + +function processUpdateQueue(current, workInProgress, queue, instance, props, renderExpirationTime) { + if (current !== null && current.updateQueue === queue) { + // We need to create a work-in-progress queue, by cloning the current queue. + var currentQueue = queue; + queue = workInProgress.updateQueue = { + baseState: currentQueue.baseState, + expirationTime: currentQueue.expirationTime, + first: currentQueue.first, + last: currentQueue.last, + isInitialized: currentQueue.isInitialized, + // These fields are no longer valid because they were already committed. + // Reset them. + callbackList: null, + hasForceUpdate: false + }; + } + + { + // Set this flag so we can warn if setState is called inside the update + // function of another setState. + queue.isProcessing = true; + } + + // Reset the remaining expiration time. If we skip over any updates, we'll + // increase this accordingly. + queue.expirationTime = NoWork; + + // TODO: We don't know what the base state will be until we begin work. + // It depends on which fiber is the next current. Initialize with an empty + // base state, then set to the memoizedState when rendering. Not super + // happy with this approach. + var state = void 0; + if (queue.isInitialized) { + state = queue.baseState; + } else { + state = queue.baseState = workInProgress.memoizedState; + queue.isInitialized = true; + } + var dontMutatePrevState = true; + var update = queue.first; + var didSkip = false; + while (update !== null) { + var updateExpirationTime = update.expirationTime; + if (updateExpirationTime > renderExpirationTime) { + // This update does not have sufficient priority. Skip it. + var remainingExpirationTime = queue.expirationTime; + if (remainingExpirationTime === NoWork || remainingExpirationTime > updateExpirationTime) { + // Update the remaining expiration time. + queue.expirationTime = updateExpirationTime; + } + if (!didSkip) { + didSkip = true; + queue.baseState = state; + } + // Continue to the next update. + update = update.next; + continue; + } + + // This update does have sufficient priority. + + // If no previous updates were skipped, drop this update from the queue by + // advancing the head of the list. + if (!didSkip) { + queue.first = update.next; + if (queue.first === null) { + queue.last = null; + } + } + + // Process the update + var _partialState = void 0; + if (update.isReplace) { + state = getStateFromUpdate(update, instance, state, props); + dontMutatePrevState = true; + } else { + _partialState = getStateFromUpdate(update, instance, state, props); + if (_partialState) { + if (dontMutatePrevState) { + // $FlowFixMe: Idk how to type this properly. + state = _assign({}, state, _partialState); + } else { + state = _assign(state, _partialState); + } + dontMutatePrevState = false; + } + } + if (update.isForced) { + queue.hasForceUpdate = true; + } + if (update.callback !== null) { + // Append to list of callbacks. + var _callbackList = queue.callbackList; + if (_callbackList === null) { + _callbackList = queue.callbackList = []; + } + _callbackList.push(update); + } + update = update.next; + } + + if (queue.callbackList !== null) { + workInProgress.effectTag |= Callback; + } else if (queue.first === null && !queue.hasForceUpdate) { + // The queue is empty. We can reset it. + workInProgress.updateQueue = null; + } + + if (!didSkip) { + didSkip = true; + queue.baseState = state; + } + + { + // No longer processing. + queue.isProcessing = false; + } + + return state; +} + +function commitCallbacks(queue, context) { + var callbackList = queue.callbackList; + if (callbackList === null) { + return; + } + // Set the list to null to make sure they don't get called more than once. + queue.callbackList = null; + for (var i = 0; i < callbackList.length; i++) { + var update = callbackList[i]; + var _callback = update.callback; + // This update might be processed again. Clear the callback so it's only + // called once. + update.callback = null; + !(typeof _callback === 'function') ? invariant(false, 'Invalid argument passed as callback. Expected a function. Instead received: %s', _callback) : void 0; + _callback.call(context); + } +} + +var fakeInternalInstance = {}; +var isArray = Array.isArray; + +{ + var didWarnAboutStateAssignmentForComponent = {}; + + var warnOnInvalidCallback = function (callback, callerName) { + warning(callback === null || typeof callback === 'function', '%s(...): Expected the last optional `callback` argument to be a ' + 'function. Instead received: %s.', callerName, callback); + }; + + // This is so gross but it's at least non-critical and can be removed if + // it causes problems. This is meant to give a nicer error message for + // ReactDOM15.unstable_renderSubtreeIntoContainer(reactDOM16Component, + // ...)) which otherwise throws a "_processChildContext is not a function" + // exception. + Object.defineProperty(fakeInternalInstance, '_processChildContext', { + enumerable: false, + value: function () { + invariant(false, '_processChildContext is not available in React 16+. This likely means you have multiple copies of React and are attempting to nest a React 15 tree inside a React 16 tree using unstable_renderSubtreeIntoContainer, which isn\'t supported. Try to make sure you have only one copy of React (and ideally, switch to ReactDOM.createPortal).'); + } + }); + Object.freeze(fakeInternalInstance); +} + +var ReactFiberClassComponent = function (scheduleWork, computeExpirationForFiber, memoizeProps, memoizeState) { + // Class component state updater + var updater = { + isMounted: isMounted, + enqueueSetState: function (instance, partialState, callback) { + var fiber = get(instance); + callback = callback === undefined ? null : callback; + { + warnOnInvalidCallback(callback, 'setState'); + } + var expirationTime = computeExpirationForFiber(fiber); + var update = { + expirationTime: expirationTime, + partialState: partialState, + callback: callback, + isReplace: false, + isForced: false, + nextCallback: null, + next: null + }; + insertUpdateIntoFiber(fiber, update); + scheduleWork(fiber, expirationTime); + }, + enqueueReplaceState: function (instance, state, callback) { + var fiber = get(instance); + callback = callback === undefined ? null : callback; + { + warnOnInvalidCallback(callback, 'replaceState'); + } + var expirationTime = computeExpirationForFiber(fiber); + var update = { + expirationTime: expirationTime, + partialState: state, + callback: callback, + isReplace: true, + isForced: false, + nextCallback: null, + next: null + }; + insertUpdateIntoFiber(fiber, update); + scheduleWork(fiber, expirationTime); + }, + enqueueForceUpdate: function (instance, callback) { + var fiber = get(instance); + callback = callback === undefined ? null : callback; + { + warnOnInvalidCallback(callback, 'forceUpdate'); + } + var expirationTime = computeExpirationForFiber(fiber); + var update = { + expirationTime: expirationTime, + partialState: null, + callback: callback, + isReplace: false, + isForced: true, + nextCallback: null, + next: null + }; + insertUpdateIntoFiber(fiber, update); + scheduleWork(fiber, expirationTime); + } + }; + + function checkShouldComponentUpdate(workInProgress, oldProps, newProps, oldState, newState, newContext) { + if (oldProps === null || workInProgress.updateQueue !== null && workInProgress.updateQueue.hasForceUpdate) { + // If the workInProgress already has an Update effect, return true + return true; + } + + var instance = workInProgress.stateNode; + var type = workInProgress.type; + if (typeof instance.shouldComponentUpdate === 'function') { + startPhaseTimer(workInProgress, 'shouldComponentUpdate'); + var shouldUpdate = instance.shouldComponentUpdate(newProps, newState, newContext); + stopPhaseTimer(); + + // Simulate an async bailout/interruption by invoking lifecycle twice. + if (debugRenderPhaseSideEffects) { + instance.shouldComponentUpdate(newProps, newState, newContext); + } + + { + warning(shouldUpdate !== undefined, '%s.shouldComponentUpdate(): Returned undefined instead of a ' + 'boolean value. Make sure to return true or false.', getComponentName(workInProgress) || 'Unknown'); + } + + return shouldUpdate; + } + + if (type.prototype && type.prototype.isPureReactComponent) { + return !shallowEqual(oldProps, newProps) || !shallowEqual(oldState, newState); + } + + return true; + } + + function checkClassInstance(workInProgress) { + var instance = workInProgress.stateNode; + var type = workInProgress.type; + { + var name = getComponentName(workInProgress); + var renderPresent = instance.render; + + if (!renderPresent) { + if (type.prototype && typeof type.prototype.render === 'function') { + warning(false, '%s(...): No `render` method found on the returned component ' + 'instance: did you accidentally return an object from the constructor?', name); + } else { + warning(false, '%s(...): No `render` method found on the returned component ' + 'instance: you may have forgotten to define `render`.', name); + } + } + + var noGetInitialStateOnES6 = !instance.getInitialState || instance.getInitialState.isReactClassApproved || instance.state; + warning(noGetInitialStateOnES6, 'getInitialState was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Did you mean to define a state property instead?', name); + var noGetDefaultPropsOnES6 = !instance.getDefaultProps || instance.getDefaultProps.isReactClassApproved; + warning(noGetDefaultPropsOnES6, 'getDefaultProps was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Use a static property to define defaultProps instead.', name); + var noInstancePropTypes = !instance.propTypes; + warning(noInstancePropTypes, 'propTypes was defined as an instance property on %s. Use a static ' + 'property to define propTypes instead.', name); + var noInstanceContextTypes = !instance.contextTypes; + warning(noInstanceContextTypes, 'contextTypes was defined as an instance property on %s. Use a static ' + 'property to define contextTypes instead.', name); + var noComponentShouldUpdate = typeof instance.componentShouldUpdate !== 'function'; + warning(noComponentShouldUpdate, '%s has a method called ' + 'componentShouldUpdate(). Did you mean shouldComponentUpdate()? ' + 'The name is phrased as a question because the function is ' + 'expected to return a value.', name); + if (type.prototype && type.prototype.isPureReactComponent && typeof instance.shouldComponentUpdate !== 'undefined') { + warning(false, '%s has a method called shouldComponentUpdate(). ' + 'shouldComponentUpdate should not be used when extending React.PureComponent. ' + 'Please extend React.Component if shouldComponentUpdate is used.', getComponentName(workInProgress) || 'A pure component'); + } + var noComponentDidUnmount = typeof instance.componentDidUnmount !== 'function'; + warning(noComponentDidUnmount, '%s has a method called ' + 'componentDidUnmount(). But there is no such lifecycle method. ' + 'Did you mean componentWillUnmount()?', name); + var noComponentDidReceiveProps = typeof instance.componentDidReceiveProps !== 'function'; + warning(noComponentDidReceiveProps, '%s has a method called ' + 'componentDidReceiveProps(). But there is no such lifecycle method. ' + 'If you meant to update the state in response to changing props, ' + 'use componentWillReceiveProps(). If you meant to fetch data or ' + 'run side-effects or mutations after React has updated the UI, use componentDidUpdate().', name); + var noComponentWillRecieveProps = typeof instance.componentWillRecieveProps !== 'function'; + warning(noComponentWillRecieveProps, '%s has a method called ' + 'componentWillRecieveProps(). Did you mean componentWillReceiveProps()?', name); + var hasMutatedProps = instance.props !== workInProgress.pendingProps; + warning(instance.props === undefined || !hasMutatedProps, '%s(...): When calling super() in `%s`, make sure to pass ' + "up the same props that your component's constructor was passed.", name, name); + var noInstanceDefaultProps = !instance.defaultProps; + warning(noInstanceDefaultProps, 'Setting defaultProps as an instance property on %s is not supported and will be ignored.' + ' Instead, define defaultProps as a static property on %s.', name, name); + } + + var state = instance.state; + if (state && (typeof state !== 'object' || isArray(state))) { + warning(false, '%s.state: must be set to an object or null', getComponentName(workInProgress)); + } + if (typeof instance.getChildContext === 'function') { + warning(typeof workInProgress.type.childContextTypes === 'object', '%s.getChildContext(): childContextTypes must be defined in order to ' + 'use getChildContext().', getComponentName(workInProgress)); + } + } + + function resetInputPointers(workInProgress, instance) { + instance.props = workInProgress.memoizedProps; + instance.state = workInProgress.memoizedState; + } + + function adoptClassInstance(workInProgress, instance) { + instance.updater = updater; + workInProgress.stateNode = instance; + // The instance needs access to the fiber so that it can schedule updates + set(instance, workInProgress); + { + instance._reactInternalInstance = fakeInternalInstance; + } + } + + function constructClassInstance(workInProgress, props) { + var ctor = workInProgress.type; + var unmaskedContext = getUnmaskedContext(workInProgress); + var needsContext = isContextConsumer(workInProgress); + var context = needsContext ? getMaskedContext(workInProgress, unmaskedContext) : emptyObject; + var instance = new ctor(props, context); + adoptClassInstance(workInProgress, instance); + + // Cache unmasked context so we can avoid recreating masked context unless necessary. + // ReactFiberContext usually updates this cache but can't for newly-created instances. + if (needsContext) { + cacheContext(workInProgress, unmaskedContext, context); + } + + return instance; + } + + function callComponentWillMount(workInProgress, instance) { + startPhaseTimer(workInProgress, 'componentWillMount'); + var oldState = instance.state; + instance.componentWillMount(); + stopPhaseTimer(); + + // Simulate an async bailout/interruption by invoking lifecycle twice. + if (debugRenderPhaseSideEffects) { + instance.componentWillMount(); + } + + if (oldState !== instance.state) { + { + warning(false, '%s.componentWillMount(): Assigning directly to this.state is ' + "deprecated (except inside a component's " + 'constructor). Use setState instead.', getComponentName(workInProgress)); + } + updater.enqueueReplaceState(instance, instance.state, null); + } + } + + function callComponentWillReceiveProps(workInProgress, instance, newProps, newContext) { + startPhaseTimer(workInProgress, 'componentWillReceiveProps'); + var oldState = instance.state; + instance.componentWillReceiveProps(newProps, newContext); + stopPhaseTimer(); + + // Simulate an async bailout/interruption by invoking lifecycle twice. + if (debugRenderPhaseSideEffects) { + instance.componentWillReceiveProps(newProps, newContext); + } + + if (instance.state !== oldState) { + { + var componentName = getComponentName(workInProgress) || 'Component'; + if (!didWarnAboutStateAssignmentForComponent[componentName]) { + warning(false, '%s.componentWillReceiveProps(): Assigning directly to ' + "this.state is deprecated (except inside a component's " + 'constructor). Use setState instead.', componentName); + didWarnAboutStateAssignmentForComponent[componentName] = true; + } + } + updater.enqueueReplaceState(instance, instance.state, null); + } + } + + // Invokes the mount life-cycles on a previously never rendered instance. + function mountClassInstance(workInProgress, renderExpirationTime) { + var current = workInProgress.alternate; + + { + checkClassInstance(workInProgress); + } + + var instance = workInProgress.stateNode; + var state = instance.state || null; + + var props = workInProgress.pendingProps; + !props ? invariant(false, 'There must be pending props for an initial mount. This error is likely caused by a bug in React. Please file an issue.') : void 0; + + var unmaskedContext = getUnmaskedContext(workInProgress); + + instance.props = props; + instance.state = workInProgress.memoizedState = state; + instance.refs = emptyObject; + instance.context = getMaskedContext(workInProgress, unmaskedContext); + + if (enableAsyncSubtreeAPI && workInProgress.type != null && workInProgress.type.prototype != null && workInProgress.type.prototype.unstable_isAsyncReactComponent === true) { + workInProgress.internalContextTag |= AsyncUpdates; + } + + if (typeof instance.componentWillMount === 'function') { + callComponentWillMount(workInProgress, instance); + // If we had additional state updates during this life-cycle, let's + // process them now. + var updateQueue = workInProgress.updateQueue; + if (updateQueue !== null) { + instance.state = processUpdateQueue(current, workInProgress, updateQueue, instance, props, renderExpirationTime); + } + } + if (typeof instance.componentDidMount === 'function') { + workInProgress.effectTag |= Update; + } + } + + // Called on a preexisting class instance. Returns false if a resumed render + // could be reused. + // function resumeMountClassInstance( + // workInProgress: Fiber, + // priorityLevel: PriorityLevel, + // ): boolean { + // const instance = workInProgress.stateNode; + // resetInputPointers(workInProgress, instance); + + // let newState = workInProgress.memoizedState; + // let newProps = workInProgress.pendingProps; + // if (!newProps) { + // // If there isn't any new props, then we'll reuse the memoized props. + // // This could be from already completed work. + // newProps = workInProgress.memoizedProps; + // invariant( + // newProps != null, + // 'There should always be pending or memoized props. This error is ' + + // 'likely caused by a bug in React. Please file an issue.', + // ); + // } + // const newUnmaskedContext = getUnmaskedContext(workInProgress); + // const newContext = getMaskedContext(workInProgress, newUnmaskedContext); + + // const oldContext = instance.context; + // const oldProps = workInProgress.memoizedProps; + + // if ( + // typeof instance.componentWillReceiveProps === 'function' && + // (oldProps !== newProps || oldContext !== newContext) + // ) { + // callComponentWillReceiveProps( + // workInProgress, + // instance, + // newProps, + // newContext, + // ); + // } + + // // Process the update queue before calling shouldComponentUpdate + // const updateQueue = workInProgress.updateQueue; + // if (updateQueue !== null) { + // newState = processUpdateQueue( + // workInProgress, + // updateQueue, + // instance, + // newState, + // newProps, + // priorityLevel, + // ); + // } + + // // TODO: Should we deal with a setState that happened after the last + // // componentWillMount and before this componentWillMount? Probably + // // unsupported anyway. + + // if ( + // !checkShouldComponentUpdate( + // workInProgress, + // workInProgress.memoizedProps, + // newProps, + // workInProgress.memoizedState, + // newState, + // newContext, + // ) + // ) { + // // Update the existing instance's state, props, and context pointers even + // // though we're bailing out. + // instance.props = newProps; + // instance.state = newState; + // instance.context = newContext; + // return false; + // } + + // // Update the input pointers now so that they are correct when we call + // // componentWillMount + // instance.props = newProps; + // instance.state = newState; + // instance.context = newContext; + + // if (typeof instance.componentWillMount === 'function') { + // callComponentWillMount(workInProgress, instance); + // // componentWillMount may have called setState. Process the update queue. + // const newUpdateQueue = workInProgress.updateQueue; + // if (newUpdateQueue !== null) { + // newState = processUpdateQueue( + // workInProgress, + // newUpdateQueue, + // instance, + // newState, + // newProps, + // priorityLevel, + // ); + // } + // } + + // if (typeof instance.componentDidMount === 'function') { + // workInProgress.effectTag |= Update; + // } + + // instance.state = newState; + + // return true; + // } + + // Invokes the update life-cycles and returns false if it shouldn't rerender. + function updateClassInstance(current, workInProgress, renderExpirationTime) { + var instance = workInProgress.stateNode; + resetInputPointers(workInProgress, instance); + + var oldProps = workInProgress.memoizedProps; + var newProps = workInProgress.pendingProps; + if (!newProps) { + // If there aren't any new props, then we'll reuse the memoized props. + // This could be from already completed work. + newProps = oldProps; + !(newProps != null) ? invariant(false, 'There should always be pending or memoized props. This error is likely caused by a bug in React. Please file an issue.') : void 0; + } + var oldContext = instance.context; + var newUnmaskedContext = getUnmaskedContext(workInProgress); + var newContext = getMaskedContext(workInProgress, newUnmaskedContext); + + // Note: During these life-cycles, instance.props/instance.state are what + // ever the previously attempted to render - not the "current". However, + // during componentDidUpdate we pass the "current" props. + + if (typeof instance.componentWillReceiveProps === 'function' && (oldProps !== newProps || oldContext !== newContext)) { + callComponentWillReceiveProps(workInProgress, instance, newProps, newContext); + } + + // Compute the next state using the memoized state and the update queue. + var oldState = workInProgress.memoizedState; + // TODO: Previous state can be null. + var newState = void 0; + if (workInProgress.updateQueue !== null) { + newState = processUpdateQueue(current, workInProgress, workInProgress.updateQueue, instance, newProps, renderExpirationTime); + } else { + newState = oldState; + } + + if (oldProps === newProps && oldState === newState && !hasContextChanged() && !(workInProgress.updateQueue !== null && workInProgress.updateQueue.hasForceUpdate)) { + // If an update was already in progress, we should schedule an Update + // effect even though we're bailing out, so that cWU/cDU are called. + if (typeof instance.componentDidUpdate === 'function') { + if (oldProps !== current.memoizedProps || oldState !== current.memoizedState) { + workInProgress.effectTag |= Update; + } + } + return false; + } + + var shouldUpdate = checkShouldComponentUpdate(workInProgress, oldProps, newProps, oldState, newState, newContext); + + if (shouldUpdate) { + if (typeof instance.componentWillUpdate === 'function') { + startPhaseTimer(workInProgress, 'componentWillUpdate'); + instance.componentWillUpdate(newProps, newState, newContext); + stopPhaseTimer(); + + // Simulate an async bailout/interruption by invoking lifecycle twice. + if (debugRenderPhaseSideEffects) { + instance.componentWillUpdate(newProps, newState, newContext); + } + } + if (typeof instance.componentDidUpdate === 'function') { + workInProgress.effectTag |= Update; + } + } else { + // If an update was already in progress, we should schedule an Update + // effect even though we're bailing out, so that cWU/cDU are called. + if (typeof instance.componentDidUpdate === 'function') { + if (oldProps !== current.memoizedProps || oldState !== current.memoizedState) { + workInProgress.effectTag |= Update; + } + } + + // If shouldComponentUpdate returned false, we should still update the + // memoized props/state to indicate that this work can be reused. + memoizeProps(workInProgress, newProps); + memoizeState(workInProgress, newState); + } + + // Update the existing instance's state, props, and context pointers even + // if shouldComponentUpdate returns false. + instance.props = newProps; + instance.state = newState; + instance.context = newContext; + + return shouldUpdate; + } + + return { + adoptClassInstance: adoptClassInstance, + constructClassInstance: constructClassInstance, + mountClassInstance: mountClassInstance, + // resumeMountClassInstance, + updateClassInstance: updateClassInstance + }; +}; + +// The Symbol used to tag the ReactElement-like types. If there is no native Symbol +// nor polyfill, then a plain number is used for performance. +var hasSymbol = typeof Symbol === 'function' && Symbol['for']; + +var REACT_ELEMENT_TYPE = hasSymbol ? Symbol['for']('react.element') : 0xeac7; +var REACT_CALL_TYPE = hasSymbol ? Symbol['for']('react.call') : 0xeac8; +var REACT_RETURN_TYPE = hasSymbol ? Symbol['for']('react.return') : 0xeac9; +var REACT_PORTAL_TYPE = hasSymbol ? Symbol['for']('react.portal') : 0xeaca; +var REACT_FRAGMENT_TYPE = hasSymbol ? Symbol['for']('react.fragment') : 0xeacb; + +var MAYBE_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator; +var FAUX_ITERATOR_SYMBOL = '@@iterator'; + +function getIteratorFn(maybeIterable) { + if (maybeIterable === null || typeof maybeIterable === 'undefined') { + return null; + } + var maybeIterator = MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL]; + if (typeof maybeIterator === 'function') { + return maybeIterator; + } + return null; +} + +var getCurrentFiberStackAddendum$1 = ReactDebugCurrentFiber.getCurrentFiberStackAddendum; + + +{ + var didWarnAboutMaps = false; + /** + * Warn if there's no key explicitly set on dynamic arrays of children or + * object keys are not valid. This allows us to keep track of children between + * updates. + */ + var ownerHasKeyUseWarning = {}; + var ownerHasFunctionTypeWarning = {}; + + var warnForMissingKey = function (child) { + if (child === null || typeof child !== 'object') { + return; + } + if (!child._store || child._store.validated || child.key != null) { + return; + } + !(typeof child._store === 'object') ? invariant(false, 'React Component in warnForMissingKey should have a _store. This error is likely caused by a bug in React. Please file an issue.') : void 0; + child._store.validated = true; + + var currentComponentErrorInfo = 'Each child in an array or iterator should have a unique ' + '"key" prop. See https://fb.me/react-warning-keys for ' + 'more information.' + (getCurrentFiberStackAddendum$1() || ''); + if (ownerHasKeyUseWarning[currentComponentErrorInfo]) { + return; + } + ownerHasKeyUseWarning[currentComponentErrorInfo] = true; + + warning(false, 'Each child in an array or iterator should have a unique ' + '"key" prop. See https://fb.me/react-warning-keys for ' + 'more information.%s', getCurrentFiberStackAddendum$1()); + }; +} + +var isArray$1 = Array.isArray; + +function coerceRef(current, element) { + var mixedRef = element.ref; + if (mixedRef !== null && typeof mixedRef !== 'function') { + if (element._owner) { + var owner = element._owner; + var inst = void 0; + if (owner) { + var ownerFiber = owner; + !(ownerFiber.tag === ClassComponent) ? invariant(false, 'Stateless function components cannot have refs.') : void 0; + inst = ownerFiber.stateNode; + } + !inst ? invariant(false, 'Missing owner for string ref %s. This error is likely caused by a bug in React. Please file an issue.', mixedRef) : void 0; + var stringRef = '' + mixedRef; + // Check if previous string ref matches new string ref + if (current !== null && current.ref !== null && current.ref._stringRef === stringRef) { + return current.ref; + } + var ref = function (value) { + var refs = inst.refs === emptyObject ? inst.refs = {} : inst.refs; + if (value === null) { + delete refs[stringRef]; + } else { + refs[stringRef] = value; + } + }; + ref._stringRef = stringRef; + return ref; + } else { + !(typeof mixedRef === 'string') ? invariant(false, 'Expected ref to be a function or a string.') : void 0; + !element._owner ? invariant(false, 'Element ref was specified as a string (%s) but no owner was set. You may have multiple copies of React loaded. (details: https://fb.me/react-refs-must-have-owner).', mixedRef) : void 0; + } + } + return mixedRef; +} + +function throwOnInvalidObjectType(returnFiber, newChild) { + if (returnFiber.type !== 'textarea') { + var addendum = ''; + { + addendum = ' If you meant to render a collection of children, use an array ' + 'instead.' + (getCurrentFiberStackAddendum$1() || ''); + } + invariant(false, 'Objects are not valid as a React child (found: %s).%s', Object.prototype.toString.call(newChild) === '[object Object]' ? 'object with keys {' + Object.keys(newChild).join(', ') + '}' : newChild, addendum); + } +} + +function warnOnFunctionType() { + var currentComponentErrorInfo = 'Functions are not valid as a React child. This may happen if ' + 'you return a Component instead of from render. ' + 'Or maybe you meant to call this function rather than return it.' + (getCurrentFiberStackAddendum$1() || ''); + + if (ownerHasFunctionTypeWarning[currentComponentErrorInfo]) { + return; + } + ownerHasFunctionTypeWarning[currentComponentErrorInfo] = true; + + warning(false, 'Functions are not valid as a React child. This may happen if ' + 'you return a Component instead of from render. ' + 'Or maybe you meant to call this function rather than return it.%s', getCurrentFiberStackAddendum$1() || ''); +} + +// This wrapper function exists because I expect to clone the code in each path +// to be able to optimize each path individually by branching early. This needs +// a compiler or we can do it manually. Helpers that don't need this branching +// live outside of this function. +function ChildReconciler(shouldTrackSideEffects) { + function deleteChild(returnFiber, childToDelete) { + if (!shouldTrackSideEffects) { + // Noop. + return; + } + // Deletions are added in reversed order so we add it to the front. + // At this point, the return fiber's effect list is empty except for + // deletions, so we can just append the deletion to the list. The remaining + // effects aren't added until the complete phase. Once we implement + // resuming, this may not be true. + var last = returnFiber.lastEffect; + if (last !== null) { + last.nextEffect = childToDelete; + returnFiber.lastEffect = childToDelete; + } else { + returnFiber.firstEffect = returnFiber.lastEffect = childToDelete; + } + childToDelete.nextEffect = null; + childToDelete.effectTag = Deletion; + } + + function deleteRemainingChildren(returnFiber, currentFirstChild) { + if (!shouldTrackSideEffects) { + // Noop. + return null; + } + + // TODO: For the shouldClone case, this could be micro-optimized a bit by + // assuming that after the first child we've already added everything. + var childToDelete = currentFirstChild; + while (childToDelete !== null) { + deleteChild(returnFiber, childToDelete); + childToDelete = childToDelete.sibling; + } + return null; + } + + function mapRemainingChildren(returnFiber, currentFirstChild) { + // Add the remaining children to a temporary map so that we can find them by + // keys quickly. Implicit (null) keys get added to this set with their index + var existingChildren = new Map(); + + var existingChild = currentFirstChild; + while (existingChild !== null) { + if (existingChild.key !== null) { + existingChildren.set(existingChild.key, existingChild); + } else { + existingChildren.set(existingChild.index, existingChild); + } + existingChild = existingChild.sibling; + } + return existingChildren; + } + + function useFiber(fiber, pendingProps, expirationTime) { + // We currently set sibling to null and index to 0 here because it is easy + // to forget to do before returning it. E.g. for the single child case. + var clone = createWorkInProgress(fiber, pendingProps, expirationTime); + clone.index = 0; + clone.sibling = null; + return clone; + } + + function placeChild(newFiber, lastPlacedIndex, newIndex) { + newFiber.index = newIndex; + if (!shouldTrackSideEffects) { + // Noop. + return lastPlacedIndex; + } + var current = newFiber.alternate; + if (current !== null) { + var oldIndex = current.index; + if (oldIndex < lastPlacedIndex) { + // This is a move. + newFiber.effectTag = Placement; + return lastPlacedIndex; + } else { + // This item can stay in place. + return oldIndex; + } + } else { + // This is an insertion. + newFiber.effectTag = Placement; + return lastPlacedIndex; + } + } + + function placeSingleChild(newFiber) { + // This is simpler for the single child case. We only need to do a + // placement for inserting new children. + if (shouldTrackSideEffects && newFiber.alternate === null) { + newFiber.effectTag = Placement; + } + return newFiber; + } + + function updateTextNode(returnFiber, current, textContent, expirationTime) { + if (current === null || current.tag !== HostText) { + // Insert + var created = createFiberFromText(textContent, returnFiber.internalContextTag, expirationTime); + created['return'] = returnFiber; + return created; + } else { + // Update + var existing = useFiber(current, textContent, expirationTime); + existing['return'] = returnFiber; + return existing; + } + } + + function updateElement(returnFiber, current, element, expirationTime) { + if (current !== null && current.type === element.type) { + // Move based on index + var existing = useFiber(current, element.props, expirationTime); + existing.ref = coerceRef(current, element); + existing['return'] = returnFiber; + { + existing._debugSource = element._source; + existing._debugOwner = element._owner; + } + return existing; + } else { + // Insert + var created = createFiberFromElement(element, returnFiber.internalContextTag, expirationTime); + created.ref = coerceRef(current, element); + created['return'] = returnFiber; + return created; + } + } + + function updateCall(returnFiber, current, call, expirationTime) { + // TODO: Should this also compare handler to determine whether to reuse? + if (current === null || current.tag !== CallComponent) { + // Insert + var created = createFiberFromCall(call, returnFiber.internalContextTag, expirationTime); + created['return'] = returnFiber; + return created; + } else { + // Move based on index + var existing = useFiber(current, call, expirationTime); + existing['return'] = returnFiber; + return existing; + } + } + + function updateReturn(returnFiber, current, returnNode, expirationTime) { + if (current === null || current.tag !== ReturnComponent) { + // Insert + var created = createFiberFromReturn(returnNode, returnFiber.internalContextTag, expirationTime); + created.type = returnNode.value; + created['return'] = returnFiber; + return created; + } else { + // Move based on index + var existing = useFiber(current, null, expirationTime); + existing.type = returnNode.value; + existing['return'] = returnFiber; + return existing; + } + } + + function updatePortal(returnFiber, current, portal, expirationTime) { + if (current === null || current.tag !== HostPortal || current.stateNode.containerInfo !== portal.containerInfo || current.stateNode.implementation !== portal.implementation) { + // Insert + var created = createFiberFromPortal(portal, returnFiber.internalContextTag, expirationTime); + created['return'] = returnFiber; + return created; + } else { + // Update + var existing = useFiber(current, portal.children || [], expirationTime); + existing['return'] = returnFiber; + return existing; + } + } + + function updateFragment(returnFiber, current, fragment, expirationTime, key) { + if (current === null || current.tag !== Fragment) { + // Insert + var created = createFiberFromFragment(fragment, returnFiber.internalContextTag, expirationTime, key); + created['return'] = returnFiber; + return created; + } else { + // Update + var existing = useFiber(current, fragment, expirationTime); + existing['return'] = returnFiber; + return existing; + } + } + + function createChild(returnFiber, newChild, expirationTime) { + if (typeof newChild === 'string' || typeof newChild === 'number') { + // Text nodes don't have keys. If the previous node is implicitly keyed + // we can continue to replace it without aborting even if it is not a text + // node. + var created = createFiberFromText('' + newChild, returnFiber.internalContextTag, expirationTime); + created['return'] = returnFiber; + return created; + } + + if (typeof newChild === 'object' && newChild !== null) { + switch (newChild.$$typeof) { + case REACT_ELEMENT_TYPE: + { + if (newChild.type === REACT_FRAGMENT_TYPE) { + var _created = createFiberFromFragment(newChild.props.children, returnFiber.internalContextTag, expirationTime, newChild.key); + _created['return'] = returnFiber; + return _created; + } else { + var _created2 = createFiberFromElement(newChild, returnFiber.internalContextTag, expirationTime); + _created2.ref = coerceRef(null, newChild); + _created2['return'] = returnFiber; + return _created2; + } + } + + case REACT_CALL_TYPE: + { + var _created3 = createFiberFromCall(newChild, returnFiber.internalContextTag, expirationTime); + _created3['return'] = returnFiber; + return _created3; + } + + case REACT_RETURN_TYPE: + { + var _created4 = createFiberFromReturn(newChild, returnFiber.internalContextTag, expirationTime); + _created4.type = newChild.value; + _created4['return'] = returnFiber; + return _created4; + } + + case REACT_PORTAL_TYPE: + { + var _created5 = createFiberFromPortal(newChild, returnFiber.internalContextTag, expirationTime); + _created5['return'] = returnFiber; + return _created5; + } + } + + if (isArray$1(newChild) || getIteratorFn(newChild)) { + var _created6 = createFiberFromFragment(newChild, returnFiber.internalContextTag, expirationTime, null); + _created6['return'] = returnFiber; + return _created6; + } + + throwOnInvalidObjectType(returnFiber, newChild); + } + + { + if (typeof newChild === 'function') { + warnOnFunctionType(); + } + } + + return null; + } + + function updateSlot(returnFiber, oldFiber, newChild, expirationTime) { + // Update the fiber if the keys match, otherwise return null. + + var key = oldFiber !== null ? oldFiber.key : null; + + if (typeof newChild === 'string' || typeof newChild === 'number') { + // Text nodes don't have keys. If the previous node is implicitly keyed + // we can continue to replace it without aborting even if it is not a text + // node. + if (key !== null) { + return null; + } + return updateTextNode(returnFiber, oldFiber, '' + newChild, expirationTime); + } + + if (typeof newChild === 'object' && newChild !== null) { + switch (newChild.$$typeof) { + case REACT_ELEMENT_TYPE: + { + if (newChild.key === key) { + if (newChild.type === REACT_FRAGMENT_TYPE) { + return updateFragment(returnFiber, oldFiber, newChild.props.children, expirationTime, key); + } + return updateElement(returnFiber, oldFiber, newChild, expirationTime); + } else { + return null; + } + } + + case REACT_CALL_TYPE: + { + if (newChild.key === key) { + return updateCall(returnFiber, oldFiber, newChild, expirationTime); + } else { + return null; + } + } + + case REACT_RETURN_TYPE: + { + // Returns don't have keys. If the previous node is implicitly keyed + // we can continue to replace it without aborting even if it is not a + // yield. + if (key === null) { + return updateReturn(returnFiber, oldFiber, newChild, expirationTime); + } else { + return null; + } + } + + case REACT_PORTAL_TYPE: + { + if (newChild.key === key) { + return updatePortal(returnFiber, oldFiber, newChild, expirationTime); + } else { + return null; + } + } + } + + if (isArray$1(newChild) || getIteratorFn(newChild)) { + if (key !== null) { + return null; + } + + return updateFragment(returnFiber, oldFiber, newChild, expirationTime, null); + } + + throwOnInvalidObjectType(returnFiber, newChild); + } + + { + if (typeof newChild === 'function') { + warnOnFunctionType(); + } + } + + return null; + } + + function updateFromMap(existingChildren, returnFiber, newIdx, newChild, expirationTime) { + if (typeof newChild === 'string' || typeof newChild === 'number') { + // Text nodes don't have keys, so we neither have to check the old nor + // new node for the key. If both are text nodes, they match. + var matchedFiber = existingChildren.get(newIdx) || null; + return updateTextNode(returnFiber, matchedFiber, '' + newChild, expirationTime); + } + + if (typeof newChild === 'object' && newChild !== null) { + switch (newChild.$$typeof) { + case REACT_ELEMENT_TYPE: + { + var _matchedFiber = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null; + if (newChild.type === REACT_FRAGMENT_TYPE) { + return updateFragment(returnFiber, _matchedFiber, newChild.props.children, expirationTime, newChild.key); + } + return updateElement(returnFiber, _matchedFiber, newChild, expirationTime); + } + + case REACT_CALL_TYPE: + { + var _matchedFiber2 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null; + return updateCall(returnFiber, _matchedFiber2, newChild, expirationTime); + } + + case REACT_RETURN_TYPE: + { + // Returns don't have keys, so we neither have to check the old nor + // new node for the key. If both are returns, they match. + var _matchedFiber3 = existingChildren.get(newIdx) || null; + return updateReturn(returnFiber, _matchedFiber3, newChild, expirationTime); + } + + case REACT_PORTAL_TYPE: + { + var _matchedFiber4 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null; + return updatePortal(returnFiber, _matchedFiber4, newChild, expirationTime); + } + } + + if (isArray$1(newChild) || getIteratorFn(newChild)) { + var _matchedFiber5 = existingChildren.get(newIdx) || null; + return updateFragment(returnFiber, _matchedFiber5, newChild, expirationTime, null); + } + + throwOnInvalidObjectType(returnFiber, newChild); + } + + { + if (typeof newChild === 'function') { + warnOnFunctionType(); + } + } + + return null; + } + + /** + * Warns if there is a duplicate or missing key + */ + function warnOnInvalidKey(child, knownKeys) { + { + if (typeof child !== 'object' || child === null) { + return knownKeys; + } + switch (child.$$typeof) { + case REACT_ELEMENT_TYPE: + case REACT_CALL_TYPE: + case REACT_PORTAL_TYPE: + warnForMissingKey(child); + var key = child.key; + if (typeof key !== 'string') { + break; + } + if (knownKeys === null) { + knownKeys = new Set(); + knownKeys.add(key); + break; + } + if (!knownKeys.has(key)) { + knownKeys.add(key); + break; + } + warning(false, 'Encountered two children with the same key, `%s`. ' + 'Keys should be unique so that components maintain their identity ' + 'across updates. Non-unique keys may cause children to be ' + 'duplicated and/or omitted — the behavior is unsupported and ' + 'could change in a future version.%s', key, getCurrentFiberStackAddendum$1()); + break; + default: + break; + } + } + return knownKeys; + } + + function reconcileChildrenArray(returnFiber, currentFirstChild, newChildren, expirationTime) { + // This algorithm can't optimize by searching from boths ends since we + // don't have backpointers on fibers. I'm trying to see how far we can get + // with that model. If it ends up not being worth the tradeoffs, we can + // add it later. + + // Even with a two ended optimization, we'd want to optimize for the case + // where there are few changes and brute force the comparison instead of + // going for the Map. It'd like to explore hitting that path first in + // forward-only mode and only go for the Map once we notice that we need + // lots of look ahead. This doesn't handle reversal as well as two ended + // search but that's unusual. Besides, for the two ended optimization to + // work on Iterables, we'd need to copy the whole set. + + // In this first iteration, we'll just live with hitting the bad case + // (adding everything to a Map) in for every insert/move. + + // If you change this code, also update reconcileChildrenIterator() which + // uses the same algorithm. + + { + // First, validate keys. + var knownKeys = null; + for (var i = 0; i < newChildren.length; i++) { + var child = newChildren[i]; + knownKeys = warnOnInvalidKey(child, knownKeys); + } + } + + var resultingFirstChild = null; + var previousNewFiber = null; + + var oldFiber = currentFirstChild; + var lastPlacedIndex = 0; + var newIdx = 0; + var nextOldFiber = null; + for (; oldFiber !== null && newIdx < newChildren.length; newIdx++) { + if (oldFiber.index > newIdx) { + nextOldFiber = oldFiber; + oldFiber = null; + } else { + nextOldFiber = oldFiber.sibling; + } + var newFiber = updateSlot(returnFiber, oldFiber, newChildren[newIdx], expirationTime); + if (newFiber === null) { + // TODO: This breaks on empty slots like null children. That's + // unfortunate because it triggers the slow path all the time. We need + // a better way to communicate whether this was a miss or null, + // boolean, undefined, etc. + if (oldFiber === null) { + oldFiber = nextOldFiber; + } + break; + } + if (shouldTrackSideEffects) { + if (oldFiber && newFiber.alternate === null) { + // We matched the slot, but we didn't reuse the existing fiber, so we + // need to delete the existing child. + deleteChild(returnFiber, oldFiber); + } + } + lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx); + if (previousNewFiber === null) { + // TODO: Move out of the loop. This only happens for the first run. + resultingFirstChild = newFiber; + } else { + // TODO: Defer siblings if we're not at the right index for this slot. + // I.e. if we had null values before, then we want to defer this + // for each null value. However, we also don't want to call updateSlot + // with the previous one. + previousNewFiber.sibling = newFiber; + } + previousNewFiber = newFiber; + oldFiber = nextOldFiber; + } + + if (newIdx === newChildren.length) { + // We've reached the end of the new children. We can delete the rest. + deleteRemainingChildren(returnFiber, oldFiber); + return resultingFirstChild; + } + + if (oldFiber === null) { + // If we don't have any more existing children we can choose a fast path + // since the rest will all be insertions. + for (; newIdx < newChildren.length; newIdx++) { + var _newFiber = createChild(returnFiber, newChildren[newIdx], expirationTime); + if (!_newFiber) { + continue; + } + lastPlacedIndex = placeChild(_newFiber, lastPlacedIndex, newIdx); + if (previousNewFiber === null) { + // TODO: Move out of the loop. This only happens for the first run. + resultingFirstChild = _newFiber; + } else { + previousNewFiber.sibling = _newFiber; + } + previousNewFiber = _newFiber; + } + return resultingFirstChild; + } + + // Add all children to a key map for quick lookups. + var existingChildren = mapRemainingChildren(returnFiber, oldFiber); + + // Keep scanning and use the map to restore deleted items as moves. + for (; newIdx < newChildren.length; newIdx++) { + var _newFiber2 = updateFromMap(existingChildren, returnFiber, newIdx, newChildren[newIdx], expirationTime); + if (_newFiber2) { + if (shouldTrackSideEffects) { + if (_newFiber2.alternate !== null) { + // The new fiber is a work in progress, but if there exists a + // current, that means that we reused the fiber. We need to delete + // it from the child list so that we don't add it to the deletion + // list. + existingChildren['delete'](_newFiber2.key === null ? newIdx : _newFiber2.key); + } + } + lastPlacedIndex = placeChild(_newFiber2, lastPlacedIndex, newIdx); + if (previousNewFiber === null) { + resultingFirstChild = _newFiber2; + } else { + previousNewFiber.sibling = _newFiber2; + } + previousNewFiber = _newFiber2; + } + } + + if (shouldTrackSideEffects) { + // Any existing children that weren't consumed above were deleted. We need + // to add them to the deletion list. + existingChildren.forEach(function (child) { + return deleteChild(returnFiber, child); + }); + } + + return resultingFirstChild; + } + + function reconcileChildrenIterator(returnFiber, currentFirstChild, newChildrenIterable, expirationTime) { + // This is the same implementation as reconcileChildrenArray(), + // but using the iterator instead. + + var iteratorFn = getIteratorFn(newChildrenIterable); + !(typeof iteratorFn === 'function') ? invariant(false, 'An object is not an iterable. This error is likely caused by a bug in React. Please file an issue.') : void 0; + + { + // Warn about using Maps as children + if (typeof newChildrenIterable.entries === 'function') { + var possibleMap = newChildrenIterable; + if (possibleMap.entries === iteratorFn) { + warning(didWarnAboutMaps, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.%s', getCurrentFiberStackAddendum$1()); + didWarnAboutMaps = true; + } + } + + // First, validate keys. + // We'll get a different iterator later for the main pass. + var _newChildren = iteratorFn.call(newChildrenIterable); + if (_newChildren) { + var knownKeys = null; + var _step = _newChildren.next(); + for (; !_step.done; _step = _newChildren.next()) { + var child = _step.value; + knownKeys = warnOnInvalidKey(child, knownKeys); + } + } + } + + var newChildren = iteratorFn.call(newChildrenIterable); + !(newChildren != null) ? invariant(false, 'An iterable object provided no iterator.') : void 0; + + var resultingFirstChild = null; + var previousNewFiber = null; + + var oldFiber = currentFirstChild; + var lastPlacedIndex = 0; + var newIdx = 0; + var nextOldFiber = null; + + var step = newChildren.next(); + for (; oldFiber !== null && !step.done; newIdx++, step = newChildren.next()) { + if (oldFiber.index > newIdx) { + nextOldFiber = oldFiber; + oldFiber = null; + } else { + nextOldFiber = oldFiber.sibling; + } + var newFiber = updateSlot(returnFiber, oldFiber, step.value, expirationTime); + if (newFiber === null) { + // TODO: This breaks on empty slots like null children. That's + // unfortunate because it triggers the slow path all the time. We need + // a better way to communicate whether this was a miss or null, + // boolean, undefined, etc. + if (!oldFiber) { + oldFiber = nextOldFiber; + } + break; + } + if (shouldTrackSideEffects) { + if (oldFiber && newFiber.alternate === null) { + // We matched the slot, but we didn't reuse the existing fiber, so we + // need to delete the existing child. + deleteChild(returnFiber, oldFiber); + } + } + lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx); + if (previousNewFiber === null) { + // TODO: Move out of the loop. This only happens for the first run. + resultingFirstChild = newFiber; + } else { + // TODO: Defer siblings if we're not at the right index for this slot. + // I.e. if we had null values before, then we want to defer this + // for each null value. However, we also don't want to call updateSlot + // with the previous one. + previousNewFiber.sibling = newFiber; + } + previousNewFiber = newFiber; + oldFiber = nextOldFiber; + } + + if (step.done) { + // We've reached the end of the new children. We can delete the rest. + deleteRemainingChildren(returnFiber, oldFiber); + return resultingFirstChild; + } + + if (oldFiber === null) { + // If we don't have any more existing children we can choose a fast path + // since the rest will all be insertions. + for (; !step.done; newIdx++, step = newChildren.next()) { + var _newFiber3 = createChild(returnFiber, step.value, expirationTime); + if (_newFiber3 === null) { + continue; + } + lastPlacedIndex = placeChild(_newFiber3, lastPlacedIndex, newIdx); + if (previousNewFiber === null) { + // TODO: Move out of the loop. This only happens for the first run. + resultingFirstChild = _newFiber3; + } else { + previousNewFiber.sibling = _newFiber3; + } + previousNewFiber = _newFiber3; + } + return resultingFirstChild; + } + + // Add all children to a key map for quick lookups. + var existingChildren = mapRemainingChildren(returnFiber, oldFiber); + + // Keep scanning and use the map to restore deleted items as moves. + for (; !step.done; newIdx++, step = newChildren.next()) { + var _newFiber4 = updateFromMap(existingChildren, returnFiber, newIdx, step.value, expirationTime); + if (_newFiber4 !== null) { + if (shouldTrackSideEffects) { + if (_newFiber4.alternate !== null) { + // The new fiber is a work in progress, but if there exists a + // current, that means that we reused the fiber. We need to delete + // it from the child list so that we don't add it to the deletion + // list. + existingChildren['delete'](_newFiber4.key === null ? newIdx : _newFiber4.key); + } + } + lastPlacedIndex = placeChild(_newFiber4, lastPlacedIndex, newIdx); + if (previousNewFiber === null) { + resultingFirstChild = _newFiber4; + } else { + previousNewFiber.sibling = _newFiber4; + } + previousNewFiber = _newFiber4; + } + } + + if (shouldTrackSideEffects) { + // Any existing children that weren't consumed above were deleted. We need + // to add them to the deletion list. + existingChildren.forEach(function (child) { + return deleteChild(returnFiber, child); + }); + } + + return resultingFirstChild; + } + + function reconcileSingleTextNode(returnFiber, currentFirstChild, textContent, expirationTime) { + // There's no need to check for keys on text nodes since we don't have a + // way to define them. + if (currentFirstChild !== null && currentFirstChild.tag === HostText) { + // We already have an existing node so let's just update it and delete + // the rest. + deleteRemainingChildren(returnFiber, currentFirstChild.sibling); + var existing = useFiber(currentFirstChild, textContent, expirationTime); + existing['return'] = returnFiber; + return existing; + } + // The existing first child is not a text node so we need to create one + // and delete the existing ones. + deleteRemainingChildren(returnFiber, currentFirstChild); + var created = createFiberFromText(textContent, returnFiber.internalContextTag, expirationTime); + created['return'] = returnFiber; + return created; + } + + function reconcileSingleElement(returnFiber, currentFirstChild, element, expirationTime) { + var key = element.key; + var child = currentFirstChild; + while (child !== null) { + // TODO: If key === null and child.key === null, then this only applies to + // the first item in the list. + if (child.key === key) { + if (child.tag === Fragment ? element.type === REACT_FRAGMENT_TYPE : child.type === element.type) { + deleteRemainingChildren(returnFiber, child.sibling); + var existing = useFiber(child, element.type === REACT_FRAGMENT_TYPE ? element.props.children : element.props, expirationTime); + existing.ref = coerceRef(child, element); + existing['return'] = returnFiber; + { + existing._debugSource = element._source; + existing._debugOwner = element._owner; + } + return existing; + } else { + deleteRemainingChildren(returnFiber, child); + break; + } + } else { + deleteChild(returnFiber, child); + } + child = child.sibling; + } + + if (element.type === REACT_FRAGMENT_TYPE) { + var created = createFiberFromFragment(element.props.children, returnFiber.internalContextTag, expirationTime, element.key); + created['return'] = returnFiber; + return created; + } else { + var _created7 = createFiberFromElement(element, returnFiber.internalContextTag, expirationTime); + _created7.ref = coerceRef(currentFirstChild, element); + _created7['return'] = returnFiber; + return _created7; + } + } + + function reconcileSingleCall(returnFiber, currentFirstChild, call, expirationTime) { + var key = call.key; + var child = currentFirstChild; + while (child !== null) { + // TODO: If key === null and child.key === null, then this only applies to + // the first item in the list. + if (child.key === key) { + if (child.tag === CallComponent) { + deleteRemainingChildren(returnFiber, child.sibling); + var existing = useFiber(child, call, expirationTime); + existing['return'] = returnFiber; + return existing; + } else { + deleteRemainingChildren(returnFiber, child); + break; + } + } else { + deleteChild(returnFiber, child); + } + child = child.sibling; + } + + var created = createFiberFromCall(call, returnFiber.internalContextTag, expirationTime); + created['return'] = returnFiber; + return created; + } + + function reconcileSingleReturn(returnFiber, currentFirstChild, returnNode, expirationTime) { + // There's no need to check for keys on yields since they're stateless. + var child = currentFirstChild; + if (child !== null) { + if (child.tag === ReturnComponent) { + deleteRemainingChildren(returnFiber, child.sibling); + var existing = useFiber(child, null, expirationTime); + existing.type = returnNode.value; + existing['return'] = returnFiber; + return existing; + } else { + deleteRemainingChildren(returnFiber, child); + } + } + + var created = createFiberFromReturn(returnNode, returnFiber.internalContextTag, expirationTime); + created.type = returnNode.value; + created['return'] = returnFiber; + return created; + } + + function reconcileSinglePortal(returnFiber, currentFirstChild, portal, expirationTime) { + var key = portal.key; + var child = currentFirstChild; + while (child !== null) { + // TODO: If key === null and child.key === null, then this only applies to + // the first item in the list. + if (child.key === key) { + if (child.tag === HostPortal && child.stateNode.containerInfo === portal.containerInfo && child.stateNode.implementation === portal.implementation) { + deleteRemainingChildren(returnFiber, child.sibling); + var existing = useFiber(child, portal.children || [], expirationTime); + existing['return'] = returnFiber; + return existing; + } else { + deleteRemainingChildren(returnFiber, child); + break; + } + } else { + deleteChild(returnFiber, child); + } + child = child.sibling; + } + + var created = createFiberFromPortal(portal, returnFiber.internalContextTag, expirationTime); + created['return'] = returnFiber; + return created; + } + + // This API will tag the children with the side-effect of the reconciliation + // itself. They will be added to the side-effect list as we pass through the + // children and the parent. + function reconcileChildFibers(returnFiber, currentFirstChild, newChild, expirationTime) { + // This function is not recursive. + // If the top level item is an array, we treat it as a set of children, + // not as a fragment. Nested arrays on the other hand will be treated as + // fragment nodes. Recursion happens at the normal flow. + + // Handle top level unkeyed fragments as if they were arrays. + // This leads to an ambiguity between <>{[...]} and <>.... + // We treat the ambiguous cases above the same. + if (typeof newChild === 'object' && newChild !== null && newChild.type === REACT_FRAGMENT_TYPE && newChild.key === null) { + newChild = newChild.props.children; + } + + // Handle object types + var isObject = typeof newChild === 'object' && newChild !== null; + + if (isObject) { + switch (newChild.$$typeof) { + case REACT_ELEMENT_TYPE: + return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, expirationTime)); + + case REACT_CALL_TYPE: + return placeSingleChild(reconcileSingleCall(returnFiber, currentFirstChild, newChild, expirationTime)); + case REACT_RETURN_TYPE: + return placeSingleChild(reconcileSingleReturn(returnFiber, currentFirstChild, newChild, expirationTime)); + case REACT_PORTAL_TYPE: + return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, expirationTime)); + } + } + + if (typeof newChild === 'string' || typeof newChild === 'number') { + return placeSingleChild(reconcileSingleTextNode(returnFiber, currentFirstChild, '' + newChild, expirationTime)); + } + + if (isArray$1(newChild)) { + return reconcileChildrenArray(returnFiber, currentFirstChild, newChild, expirationTime); + } + + if (getIteratorFn(newChild)) { + return reconcileChildrenIterator(returnFiber, currentFirstChild, newChild, expirationTime); + } + + if (isObject) { + throwOnInvalidObjectType(returnFiber, newChild); + } + + { + if (typeof newChild === 'function') { + warnOnFunctionType(); + } + } + if (typeof newChild === 'undefined') { + // If the new child is undefined, and the return fiber is a composite + // component, throw an error. If Fiber return types are disabled, + // we already threw above. + switch (returnFiber.tag) { + case ClassComponent: + { + { + var instance = returnFiber.stateNode; + if (instance.render._isMockFunction) { + // We allow auto-mocks to proceed as if they're returning null. + break; + } + } + } + // Intentionally fall through to the next case, which handles both + // functions and classes + // eslint-disable-next-lined no-fallthrough + case FunctionalComponent: + { + var Component = returnFiber.type; + invariant(false, '%s(...): Nothing was returned from render. This usually means a return statement is missing. Or, to render nothing, return null.', Component.displayName || Component.name || 'Component'); + } + } + } + + // Remaining cases are all treated as empty. + return deleteRemainingChildren(returnFiber, currentFirstChild); + } + + return reconcileChildFibers; +} + +var reconcileChildFibers = ChildReconciler(true); +var mountChildFibers = ChildReconciler(false); + +function cloneChildFibers(current, workInProgress) { + !(current === null || workInProgress.child === current.child) ? invariant(false, 'Resuming work not yet implemented.') : void 0; + + if (workInProgress.child === null) { + return; + } + + var currentChild = workInProgress.child; + var newChild = createWorkInProgress(currentChild, currentChild.pendingProps, currentChild.expirationTime); + workInProgress.child = newChild; + + newChild['return'] = workInProgress; + while (currentChild.sibling !== null) { + currentChild = currentChild.sibling; + newChild = newChild.sibling = createWorkInProgress(currentChild, currentChild.pendingProps, currentChild.expirationTime); + newChild['return'] = workInProgress; + } + newChild.sibling = null; +} + +{ + var warnedAboutStatelessRefs = {}; +} + +var ReactFiberBeginWork = function (config, hostContext, hydrationContext, scheduleWork, computeExpirationForFiber) { + var shouldSetTextContent = config.shouldSetTextContent, + useSyncScheduling = config.useSyncScheduling, + shouldDeprioritizeSubtree = config.shouldDeprioritizeSubtree; + var pushHostContext = hostContext.pushHostContext, + pushHostContainer = hostContext.pushHostContainer; + var enterHydrationState = hydrationContext.enterHydrationState, + resetHydrationState = hydrationContext.resetHydrationState, + tryToClaimNextHydratableInstance = hydrationContext.tryToClaimNextHydratableInstance; + + var _ReactFiberClassCompo = ReactFiberClassComponent(scheduleWork, computeExpirationForFiber, memoizeProps, memoizeState), + adoptClassInstance = _ReactFiberClassCompo.adoptClassInstance, + constructClassInstance = _ReactFiberClassCompo.constructClassInstance, + mountClassInstance = _ReactFiberClassCompo.mountClassInstance, + updateClassInstance = _ReactFiberClassCompo.updateClassInstance; + + // TODO: Remove this and use reconcileChildrenAtExpirationTime directly. + + + function reconcileChildren(current, workInProgress, nextChildren) { + reconcileChildrenAtExpirationTime(current, workInProgress, nextChildren, workInProgress.expirationTime); + } + + function reconcileChildrenAtExpirationTime(current, workInProgress, nextChildren, renderExpirationTime) { + if (current === null) { + // If this is a fresh new component that hasn't been rendered yet, we + // won't update its child set by applying minimal side-effects. Instead, + // we will add them all to the child before it gets rendered. That means + // we can optimize this reconciliation pass by not tracking side-effects. + workInProgress.child = mountChildFibers(workInProgress, null, nextChildren, renderExpirationTime); + } else { + // If the current child is the same as the work in progress, it means that + // we haven't yet started any work on these children. Therefore, we use + // the clone algorithm to create a copy of all the current children. + + // If we had any progressed work already, that is invalid at this point so + // let's throw it out. + workInProgress.child = reconcileChildFibers(workInProgress, current.child, nextChildren, renderExpirationTime); + } + } + + function updateFragment(current, workInProgress) { + var nextChildren = workInProgress.pendingProps; + if (hasContextChanged()) { + // Normally we can bail out on props equality but if context has changed + // we don't do the bailout and we have to reuse existing props instead. + if (nextChildren === null) { + nextChildren = workInProgress.memoizedProps; + } + } else if (nextChildren === null || workInProgress.memoizedProps === nextChildren) { + return bailoutOnAlreadyFinishedWork(current, workInProgress); + } + reconcileChildren(current, workInProgress, nextChildren); + memoizeProps(workInProgress, nextChildren); + return workInProgress.child; + } + + function markRef(current, workInProgress) { + var ref = workInProgress.ref; + if (ref !== null && (!current || current.ref !== ref)) { + // Schedule a Ref effect + workInProgress.effectTag |= Ref; + } + } + + function updateFunctionalComponent(current, workInProgress) { + var fn = workInProgress.type; + var nextProps = workInProgress.pendingProps; + + var memoizedProps = workInProgress.memoizedProps; + if (hasContextChanged()) { + // Normally we can bail out on props equality but if context has changed + // we don't do the bailout and we have to reuse existing props instead. + if (nextProps === null) { + nextProps = memoizedProps; + } + } else { + if (nextProps === null || memoizedProps === nextProps) { + return bailoutOnAlreadyFinishedWork(current, workInProgress); + } + // TODO: consider bringing fn.shouldComponentUpdate() back. + // It used to be here. + } + + var unmaskedContext = getUnmaskedContext(workInProgress); + var context = getMaskedContext(workInProgress, unmaskedContext); + + var nextChildren; + + { + ReactCurrentOwner.current = workInProgress; + ReactDebugCurrentFiber.setCurrentPhase('render'); + nextChildren = fn(nextProps, context); + ReactDebugCurrentFiber.setCurrentPhase(null); + } + // React DevTools reads this flag. + workInProgress.effectTag |= PerformedWork; + reconcileChildren(current, workInProgress, nextChildren); + memoizeProps(workInProgress, nextProps); + return workInProgress.child; + } + + function updateClassComponent(current, workInProgress, renderExpirationTime) { + // Push context providers early to prevent context stack mismatches. + // During mounting we don't know the child context yet as the instance doesn't exist. + // We will invalidate the child context in finishClassComponent() right after rendering. + var hasContext = pushContextProvider(workInProgress); + + var shouldUpdate = void 0; + if (current === null) { + if (!workInProgress.stateNode) { + // In the initial pass we might need to construct the instance. + constructClassInstance(workInProgress, workInProgress.pendingProps); + mountClassInstance(workInProgress, renderExpirationTime); + shouldUpdate = true; + } else { + invariant(false, 'Resuming work not yet implemented.'); + // In a resume, we'll already have an instance we can reuse. + // shouldUpdate = resumeMountClassInstance(workInProgress, renderExpirationTime); + } + } else { + shouldUpdate = updateClassInstance(current, workInProgress, renderExpirationTime); + } + return finishClassComponent(current, workInProgress, shouldUpdate, hasContext); + } + + function finishClassComponent(current, workInProgress, shouldUpdate, hasContext) { + // Refs should update even if shouldComponentUpdate returns false + markRef(current, workInProgress); + + if (!shouldUpdate) { + // Context providers should defer to sCU for rendering + if (hasContext) { + invalidateContextProvider(workInProgress, false); + } + + return bailoutOnAlreadyFinishedWork(current, workInProgress); + } + + var instance = workInProgress.stateNode; + + // Rerender + ReactCurrentOwner.current = workInProgress; + var nextChildren = void 0; + { + ReactDebugCurrentFiber.setCurrentPhase('render'); + nextChildren = instance.render(); + if (debugRenderPhaseSideEffects) { + instance.render(); + } + ReactDebugCurrentFiber.setCurrentPhase(null); + } + // React DevTools reads this flag. + workInProgress.effectTag |= PerformedWork; + reconcileChildren(current, workInProgress, nextChildren); + // Memoize props and state using the values we just used to render. + // TODO: Restructure so we never read values from the instance. + memoizeState(workInProgress, instance.state); + memoizeProps(workInProgress, instance.props); + + // The context might have changed so we need to recalculate it. + if (hasContext) { + invalidateContextProvider(workInProgress, true); + } + + return workInProgress.child; + } + + function pushHostRootContext(workInProgress) { + var root = workInProgress.stateNode; + if (root.pendingContext) { + pushTopLevelContextObject(workInProgress, root.pendingContext, root.pendingContext !== root.context); + } else if (root.context) { + // Should always be set + pushTopLevelContextObject(workInProgress, root.context, false); + } + pushHostContainer(workInProgress, root.containerInfo); + } + + function updateHostRoot(current, workInProgress, renderExpirationTime) { + pushHostRootContext(workInProgress); + var updateQueue = workInProgress.updateQueue; + if (updateQueue !== null) { + var prevState = workInProgress.memoizedState; + var state = processUpdateQueue(current, workInProgress, updateQueue, null, null, renderExpirationTime); + if (prevState === state) { + // If the state is the same as before, that's a bailout because we had + // no work that expires at this time. + resetHydrationState(); + return bailoutOnAlreadyFinishedWork(current, workInProgress); + } + var element = state.element; + var root = workInProgress.stateNode; + if ((current === null || current.child === null) && root.hydrate && enterHydrationState(workInProgress)) { + // If we don't have any current children this might be the first pass. + // We always try to hydrate. If this isn't a hydration pass there won't + // be any children to hydrate which is effectively the same thing as + // not hydrating. + + // This is a bit of a hack. We track the host root as a placement to + // know that we're currently in a mounting state. That way isMounted + // works as expected. We must reset this before committing. + // TODO: Delete this when we delete isMounted and findDOMNode. + workInProgress.effectTag |= Placement; + + // Ensure that children mount into this root without tracking + // side-effects. This ensures that we don't store Placement effects on + // nodes that will be hydrated. + workInProgress.child = mountChildFibers(workInProgress, null, element, renderExpirationTime); + } else { + // Otherwise reset hydration state in case we aborted and resumed another + // root. + resetHydrationState(); + reconcileChildren(current, workInProgress, element); + } + memoizeState(workInProgress, state); + return workInProgress.child; + } + resetHydrationState(); + // If there is no update queue, that's a bailout because the root has no props. + return bailoutOnAlreadyFinishedWork(current, workInProgress); + } + + function updateHostComponent(current, workInProgress, renderExpirationTime) { + pushHostContext(workInProgress); + + if (current === null) { + tryToClaimNextHydratableInstance(workInProgress); + } + + var type = workInProgress.type; + var memoizedProps = workInProgress.memoizedProps; + var nextProps = workInProgress.pendingProps; + if (nextProps === null) { + nextProps = memoizedProps; + !(nextProps !== null) ? invariant(false, 'We should always have pending or current props. This error is likely caused by a bug in React. Please file an issue.') : void 0; + } + var prevProps = current !== null ? current.memoizedProps : null; + + if (hasContextChanged()) { + // Normally we can bail out on props equality but if context has changed + // we don't do the bailout and we have to reuse existing props instead. + } else if (nextProps === null || memoizedProps === nextProps) { + return bailoutOnAlreadyFinishedWork(current, workInProgress); + } + + var nextChildren = nextProps.children; + var isDirectTextChild = shouldSetTextContent(type, nextProps); + + if (isDirectTextChild) { + // We special case a direct text child of a host node. This is a common + // case. We won't handle it as a reified child. We will instead handle + // this in the host environment that also have access to this prop. That + // avoids allocating another HostText fiber and traversing it. + nextChildren = null; + } else if (prevProps && shouldSetTextContent(type, prevProps)) { + // If we're switching from a direct text child to a normal child, or to + // empty, we need to schedule the text content to be reset. + workInProgress.effectTag |= ContentReset; + } + + markRef(current, workInProgress); + + // Check the host config to see if the children are offscreen/hidden. + if (renderExpirationTime !== Never && !useSyncScheduling && shouldDeprioritizeSubtree(type, nextProps)) { + // Down-prioritize the children. + workInProgress.expirationTime = Never; + // Bailout and come back to this fiber later. + return null; + } + + reconcileChildren(current, workInProgress, nextChildren); + memoizeProps(workInProgress, nextProps); + return workInProgress.child; + } + + function updateHostText(current, workInProgress) { + if (current === null) { + tryToClaimNextHydratableInstance(workInProgress); + } + var nextProps = workInProgress.pendingProps; + if (nextProps === null) { + nextProps = workInProgress.memoizedProps; + } + memoizeProps(workInProgress, nextProps); + // Nothing to do here. This is terminal. We'll do the completion step + // immediately after. + return null; + } + + function mountIndeterminateComponent(current, workInProgress, renderExpirationTime) { + !(current === null) ? invariant(false, 'An indeterminate component should never have mounted. This error is likely caused by a bug in React. Please file an issue.') : void 0; + var fn = workInProgress.type; + var props = workInProgress.pendingProps; + var unmaskedContext = getUnmaskedContext(workInProgress); + var context = getMaskedContext(workInProgress, unmaskedContext); + + var value; + + { + if (fn.prototype && typeof fn.prototype.render === 'function') { + var componentName = getComponentName(workInProgress); + warning(false, "The <%s /> component appears to have a render method, but doesn't extend React.Component. " + 'This is likely to cause errors. Change %s to extend React.Component instead.', componentName, componentName); + } + ReactCurrentOwner.current = workInProgress; + value = fn(props, context); + } + // React DevTools reads this flag. + workInProgress.effectTag |= PerformedWork; + + if (typeof value === 'object' && value !== null && typeof value.render === 'function') { + // Proceed under the assumption that this is a class instance + workInProgress.tag = ClassComponent; + + // Push context providers early to prevent context stack mismatches. + // During mounting we don't know the child context yet as the instance doesn't exist. + // We will invalidate the child context in finishClassComponent() right after rendering. + var hasContext = pushContextProvider(workInProgress); + adoptClassInstance(workInProgress, value); + mountClassInstance(workInProgress, renderExpirationTime); + return finishClassComponent(current, workInProgress, true, hasContext); + } else { + // Proceed under the assumption that this is a functional component + workInProgress.tag = FunctionalComponent; + { + var Component = workInProgress.type; + + if (Component) { + warning(!Component.childContextTypes, '%s(...): childContextTypes cannot be defined on a functional component.', Component.displayName || Component.name || 'Component'); + } + if (workInProgress.ref !== null) { + var info = ''; + var ownerName = ReactDebugCurrentFiber.getCurrentFiberOwnerName(); + if (ownerName) { + info += '\n\nCheck the render method of `' + ownerName + '`.'; + } + + var warningKey = ownerName || workInProgress._debugID || ''; + var debugSource = workInProgress._debugSource; + if (debugSource) { + warningKey = debugSource.fileName + ':' + debugSource.lineNumber; + } + if (!warnedAboutStatelessRefs[warningKey]) { + warnedAboutStatelessRefs[warningKey] = true; + warning(false, 'Stateless function components cannot be given refs. ' + 'Attempts to access this ref will fail.%s%s', info, ReactDebugCurrentFiber.getCurrentFiberStackAddendum()); + } + } + } + reconcileChildren(current, workInProgress, value); + memoizeProps(workInProgress, props); + return workInProgress.child; + } + } + + function updateCallComponent(current, workInProgress, renderExpirationTime) { + var nextCall = workInProgress.pendingProps; + if (hasContextChanged()) { + // Normally we can bail out on props equality but if context has changed + // we don't do the bailout and we have to reuse existing props instead. + if (nextCall === null) { + nextCall = current && current.memoizedProps; + !(nextCall !== null) ? invariant(false, 'We should always have pending or current props. This error is likely caused by a bug in React. Please file an issue.') : void 0; + } + } else if (nextCall === null || workInProgress.memoizedProps === nextCall) { + nextCall = workInProgress.memoizedProps; + // TODO: When bailing out, we might need to return the stateNode instead + // of the child. To check it for work. + // return bailoutOnAlreadyFinishedWork(current, workInProgress); + } + + var nextChildren = nextCall.children; + + // The following is a fork of reconcileChildrenAtExpirationTime but using + // stateNode to store the child. + if (current === null) { + workInProgress.stateNode = mountChildFibers(workInProgress, workInProgress.stateNode, nextChildren, renderExpirationTime); + } else { + workInProgress.stateNode = reconcileChildFibers(workInProgress, workInProgress.stateNode, nextChildren, renderExpirationTime); + } + + memoizeProps(workInProgress, nextCall); + // This doesn't take arbitrary time so we could synchronously just begin + // eagerly do the work of workInProgress.child as an optimization. + return workInProgress.stateNode; + } + + function updatePortalComponent(current, workInProgress, renderExpirationTime) { + pushHostContainer(workInProgress, workInProgress.stateNode.containerInfo); + var nextChildren = workInProgress.pendingProps; + if (hasContextChanged()) { + // Normally we can bail out on props equality but if context has changed + // we don't do the bailout and we have to reuse existing props instead. + if (nextChildren === null) { + nextChildren = current && current.memoizedProps; + !(nextChildren != null) ? invariant(false, 'We should always have pending or current props. This error is likely caused by a bug in React. Please file an issue.') : void 0; + } + } else if (nextChildren === null || workInProgress.memoizedProps === nextChildren) { + return bailoutOnAlreadyFinishedWork(current, workInProgress); + } + + if (current === null) { + // Portals are special because we don't append the children during mount + // but at commit. Therefore we need to track insertions which the normal + // flow doesn't do during mount. This doesn't happen at the root because + // the root always starts with a "current" with a null child. + // TODO: Consider unifying this with how the root works. + workInProgress.child = reconcileChildFibers(workInProgress, null, nextChildren, renderExpirationTime); + memoizeProps(workInProgress, nextChildren); + } else { + reconcileChildren(current, workInProgress, nextChildren); + memoizeProps(workInProgress, nextChildren); + } + return workInProgress.child; + } + + /* + function reuseChildrenEffects(returnFiber : Fiber, firstChild : Fiber) { + let child = firstChild; + do { + // Ensure that the first and last effect of the parent corresponds + // to the children's first and last effect. + if (!returnFiber.firstEffect) { + returnFiber.firstEffect = child.firstEffect; + } + if (child.lastEffect) { + if (returnFiber.lastEffect) { + returnFiber.lastEffect.nextEffect = child.firstEffect; + } + returnFiber.lastEffect = child.lastEffect; + } + } while (child = child.sibling); + } + */ + + function bailoutOnAlreadyFinishedWork(current, workInProgress) { + cancelWorkTimer(workInProgress); + + // TODO: We should ideally be able to bail out early if the children have no + // more work to do. However, since we don't have a separation of this + // Fiber's priority and its children yet - we don't know without doing lots + // of the same work we do anyway. Once we have that separation we can just + // bail out here if the children has no more work at this priority level. + // if (workInProgress.priorityOfChildren <= priorityLevel) { + // // If there are side-effects in these children that have not yet been + // // committed we need to ensure that they get properly transferred up. + // if (current && current.child !== workInProgress.child) { + // reuseChildrenEffects(workInProgress, child); + // } + // return null; + // } + + cloneChildFibers(current, workInProgress); + return workInProgress.child; + } + + function bailoutOnLowPriority(current, workInProgress) { + cancelWorkTimer(workInProgress); + + // TODO: Handle HostComponent tags here as well and call pushHostContext()? + // See PR 8590 discussion for context + switch (workInProgress.tag) { + case HostRoot: + pushHostRootContext(workInProgress); + break; + case ClassComponent: + pushContextProvider(workInProgress); + break; + case HostPortal: + pushHostContainer(workInProgress, workInProgress.stateNode.containerInfo); + break; + } + // TODO: What if this is currently in progress? + // How can that happen? How is this not being cloned? + return null; + } + + // TODO: Delete memoizeProps/State and move to reconcile/bailout instead + function memoizeProps(workInProgress, nextProps) { + workInProgress.memoizedProps = nextProps; + } + + function memoizeState(workInProgress, nextState) { + workInProgress.memoizedState = nextState; + // Don't reset the updateQueue, in case there are pending updates. Resetting + // is handled by processUpdateQueue. + } + + function beginWork(current, workInProgress, renderExpirationTime) { + if (workInProgress.expirationTime === NoWork || workInProgress.expirationTime > renderExpirationTime) { + return bailoutOnLowPriority(current, workInProgress); + } + + switch (workInProgress.tag) { + case IndeterminateComponent: + return mountIndeterminateComponent(current, workInProgress, renderExpirationTime); + case FunctionalComponent: + return updateFunctionalComponent(current, workInProgress); + case ClassComponent: + return updateClassComponent(current, workInProgress, renderExpirationTime); + case HostRoot: + return updateHostRoot(current, workInProgress, renderExpirationTime); + case HostComponent: + return updateHostComponent(current, workInProgress, renderExpirationTime); + case HostText: + return updateHostText(current, workInProgress); + case CallHandlerPhase: + // This is a restart. Reset the tag to the initial phase. + workInProgress.tag = CallComponent; + // Intentionally fall through since this is now the same. + case CallComponent: + return updateCallComponent(current, workInProgress, renderExpirationTime); + case ReturnComponent: + // A return component is just a placeholder, we can just run through the + // next one immediately. + return null; + case HostPortal: + return updatePortalComponent(current, workInProgress, renderExpirationTime); + case Fragment: + return updateFragment(current, workInProgress); + default: + invariant(false, 'Unknown unit of work tag. This error is likely caused by a bug in React. Please file an issue.'); + } + } + + function beginFailedWork(current, workInProgress, renderExpirationTime) { + // Push context providers here to avoid a push/pop context mismatch. + switch (workInProgress.tag) { + case ClassComponent: + pushContextProvider(workInProgress); + break; + case HostRoot: + pushHostRootContext(workInProgress); + break; + default: + invariant(false, 'Invalid type of work. This error is likely caused by a bug in React. Please file an issue.'); + } + + // Add an error effect so we can handle the error during the commit phase + workInProgress.effectTag |= Err; + + // This is a weird case where we do "resume" work — work that failed on + // our first attempt. Because we no longer have a notion of "progressed + // deletions," reset the child to the current child to make sure we delete + // it again. TODO: Find a better way to handle this, perhaps during a more + // general overhaul of error handling. + if (current === null) { + workInProgress.child = null; + } else if (workInProgress.child !== current.child) { + workInProgress.child = current.child; + } + + if (workInProgress.expirationTime === NoWork || workInProgress.expirationTime > renderExpirationTime) { + return bailoutOnLowPriority(current, workInProgress); + } + + // If we don't bail out, we're going be recomputing our children so we need + // to drop our effect list. + workInProgress.firstEffect = null; + workInProgress.lastEffect = null; + + // Unmount the current children as if the component rendered null + var nextChildren = null; + reconcileChildrenAtExpirationTime(current, workInProgress, nextChildren, renderExpirationTime); + + if (workInProgress.tag === ClassComponent) { + var instance = workInProgress.stateNode; + workInProgress.memoizedProps = instance.props; + workInProgress.memoizedState = instance.state; + } + + return workInProgress.child; + } + + return { + beginWork: beginWork, + beginFailedWork: beginFailedWork + }; +}; + +var ReactFiberCompleteWork = function (config, hostContext, hydrationContext) { + var createInstance = config.createInstance, + createTextInstance = config.createTextInstance, + appendInitialChild = config.appendInitialChild, + finalizeInitialChildren = config.finalizeInitialChildren, + prepareUpdate = config.prepareUpdate, + mutation = config.mutation, + persistence = config.persistence; + var getRootHostContainer = hostContext.getRootHostContainer, + popHostContext = hostContext.popHostContext, + getHostContext = hostContext.getHostContext, + popHostContainer = hostContext.popHostContainer; + var prepareToHydrateHostInstance = hydrationContext.prepareToHydrateHostInstance, + prepareToHydrateHostTextInstance = hydrationContext.prepareToHydrateHostTextInstance, + popHydrationState = hydrationContext.popHydrationState; + + + function markUpdate(workInProgress) { + // Tag the fiber with an update effect. This turns a Placement into + // an UpdateAndPlacement. + workInProgress.effectTag |= Update; + } + + function markRef(workInProgress) { + workInProgress.effectTag |= Ref; + } + + function appendAllReturns(returns, workInProgress) { + var node = workInProgress.stateNode; + if (node) { + node['return'] = workInProgress; + } + while (node !== null) { + if (node.tag === HostComponent || node.tag === HostText || node.tag === HostPortal) { + invariant(false, 'A call cannot have host component children.'); + } else if (node.tag === ReturnComponent) { + returns.push(node.type); + } else if (node.child !== null) { + node.child['return'] = node; + node = node.child; + continue; + } + while (node.sibling === null) { + if (node['return'] === null || node['return'] === workInProgress) { + return; + } + node = node['return']; + } + node.sibling['return'] = node['return']; + node = node.sibling; + } + } + + function moveCallToHandlerPhase(current, workInProgress, renderExpirationTime) { + var call = workInProgress.memoizedProps; + !call ? invariant(false, 'Should be resolved by now. This error is likely caused by a bug in React. Please file an issue.') : void 0; + + // First step of the call has completed. Now we need to do the second. + // TODO: It would be nice to have a multi stage call represented by a + // single component, or at least tail call optimize nested ones. Currently + // that requires additional fields that we don't want to add to the fiber. + // So this requires nested handlers. + // Note: This doesn't mutate the alternate node. I don't think it needs to + // since this stage is reset for every pass. + workInProgress.tag = CallHandlerPhase; + + // Build up the returns. + // TODO: Compare this to a generator or opaque helpers like Children. + var returns = []; + appendAllReturns(returns, workInProgress); + var fn = call.handler; + var props = call.props; + var nextChildren = fn(props, returns); + + var currentFirstChild = current !== null ? current.child : null; + workInProgress.child = reconcileChildFibers(workInProgress, currentFirstChild, nextChildren, renderExpirationTime); + return workInProgress.child; + } + + function appendAllChildren(parent, workInProgress) { + // We only have the top Fiber that was created but we need recurse down its + // children to find all the terminal nodes. + var node = workInProgress.child; + while (node !== null) { + if (node.tag === HostComponent || node.tag === HostText) { + appendInitialChild(parent, node.stateNode); + } else if (node.tag === HostPortal) { + // If we have a portal child, then we don't want to traverse + // down its children. Instead, we'll get insertions from each child in + // the portal directly. + } else if (node.child !== null) { + node.child['return'] = node; + node = node.child; + continue; + } + if (node === workInProgress) { + return; + } + while (node.sibling === null) { + if (node['return'] === null || node['return'] === workInProgress) { + return; + } + node = node['return']; + } + node.sibling['return'] = node['return']; + node = node.sibling; + } + } + + var updateHostContainer = void 0; + var updateHostComponent = void 0; + var updateHostText = void 0; + if (mutation) { + if (enableMutatingReconciler) { + // Mutation mode + updateHostContainer = function (workInProgress) { + // Noop + }; + updateHostComponent = function (current, workInProgress, updatePayload, type, oldProps, newProps, rootContainerInstance) { + // TODO: Type this specific to this type of component. + workInProgress.updateQueue = updatePayload; + // If the update payload indicates that there is a change or if there + // is a new ref we mark this as an update. All the work is done in commitWork. + if (updatePayload) { + markUpdate(workInProgress); + } + }; + updateHostText = function (current, workInProgress, oldText, newText) { + // If the text differs, mark it as an update. All the work in done in commitWork. + if (oldText !== newText) { + markUpdate(workInProgress); + } + }; + } else { + invariant(false, 'Mutating reconciler is disabled.'); + } + } else if (persistence) { + if (enablePersistentReconciler) { + // Persistent host tree mode + var cloneInstance = persistence.cloneInstance, + createContainerChildSet = persistence.createContainerChildSet, + appendChildToContainerChildSet = persistence.appendChildToContainerChildSet, + finalizeContainerChildren = persistence.finalizeContainerChildren; + + // An unfortunate fork of appendAllChildren because we have two different parent types. + + var appendAllChildrenToContainer = function (containerChildSet, workInProgress) { + // We only have the top Fiber that was created but we need recurse down its + // children to find all the terminal nodes. + var node = workInProgress.child; + while (node !== null) { + if (node.tag === HostComponent || node.tag === HostText) { + appendChildToContainerChildSet(containerChildSet, node.stateNode); + } else if (node.tag === HostPortal) { + // If we have a portal child, then we don't want to traverse + // down its children. Instead, we'll get insertions from each child in + // the portal directly. + } else if (node.child !== null) { + node.child['return'] = node; + node = node.child; + continue; + } + if (node === workInProgress) { + return; + } + while (node.sibling === null) { + if (node['return'] === null || node['return'] === workInProgress) { + return; + } + node = node['return']; + } + node.sibling['return'] = node['return']; + node = node.sibling; + } + }; + updateHostContainer = function (workInProgress) { + var portalOrRoot = workInProgress.stateNode; + var childrenUnchanged = workInProgress.firstEffect === null; + if (childrenUnchanged) { + // No changes, just reuse the existing instance. + } else { + var container = portalOrRoot.containerInfo; + var newChildSet = createContainerChildSet(container); + if (finalizeContainerChildren(container, newChildSet)) { + markUpdate(workInProgress); + } + portalOrRoot.pendingChildren = newChildSet; + // If children might have changed, we have to add them all to the set. + appendAllChildrenToContainer(newChildSet, workInProgress); + // Schedule an update on the container to swap out the container. + markUpdate(workInProgress); + } + }; + updateHostComponent = function (current, workInProgress, updatePayload, type, oldProps, newProps, rootContainerInstance) { + // If there are no effects associated with this node, then none of our children had any updates. + // This guarantees that we can reuse all of them. + var childrenUnchanged = workInProgress.firstEffect === null; + var currentInstance = current.stateNode; + if (childrenUnchanged && updatePayload === null) { + // No changes, just reuse the existing instance. + // Note that this might release a previous clone. + workInProgress.stateNode = currentInstance; + } else { + var recyclableInstance = workInProgress.stateNode; + var newInstance = cloneInstance(currentInstance, updatePayload, type, oldProps, newProps, workInProgress, childrenUnchanged, recyclableInstance); + if (finalizeInitialChildren(newInstance, type, newProps, rootContainerInstance)) { + markUpdate(workInProgress); + } + workInProgress.stateNode = newInstance; + if (childrenUnchanged) { + // If there are no other effects in this tree, we need to flag this node as having one. + // Even though we're not going to use it for anything. + // Otherwise parents won't know that there are new children to propagate upwards. + markUpdate(workInProgress); + } else { + // If children might have changed, we have to add them all to the set. + appendAllChildren(newInstance, workInProgress); + } + } + }; + updateHostText = function (current, workInProgress, oldText, newText) { + if (oldText !== newText) { + // If the text content differs, we'll create a new text instance for it. + var rootContainerInstance = getRootHostContainer(); + var currentHostContext = getHostContext(); + workInProgress.stateNode = createTextInstance(newText, rootContainerInstance, currentHostContext, workInProgress); + // We'll have to mark it as having an effect, even though we won't use the effect for anything. + // This lets the parents know that at least one of their children has changed. + markUpdate(workInProgress); + } + }; + } else { + invariant(false, 'Persistent reconciler is disabled.'); + } + } else { + if (enableNoopReconciler) { + // No host operations + updateHostContainer = function (workInProgress) { + // Noop + }; + updateHostComponent = function (current, workInProgress, updatePayload, type, oldProps, newProps, rootContainerInstance) { + // Noop + }; + updateHostText = function (current, workInProgress, oldText, newText) { + // Noop + }; + } else { + invariant(false, 'Noop reconciler is disabled.'); + } + } + + function completeWork(current, workInProgress, renderExpirationTime) { + // Get the latest props. + var newProps = workInProgress.pendingProps; + if (newProps === null) { + newProps = workInProgress.memoizedProps; + } else if (workInProgress.expirationTime !== Never || renderExpirationTime === Never) { + // Reset the pending props, unless this was a down-prioritization. + workInProgress.pendingProps = null; + } + + switch (workInProgress.tag) { + case FunctionalComponent: + return null; + case ClassComponent: + { + // We are leaving this subtree, so pop context if any. + popContextProvider(workInProgress); + return null; + } + case HostRoot: + { + popHostContainer(workInProgress); + popTopLevelContextObject(workInProgress); + var fiberRoot = workInProgress.stateNode; + if (fiberRoot.pendingContext) { + fiberRoot.context = fiberRoot.pendingContext; + fiberRoot.pendingContext = null; + } + + if (current === null || current.child === null) { + // If we hydrated, pop so that we can delete any remaining children + // that weren't hydrated. + popHydrationState(workInProgress); + // This resets the hacky state to fix isMounted before committing. + // TODO: Delete this when we delete isMounted and findDOMNode. + workInProgress.effectTag &= ~Placement; + } + updateHostContainer(workInProgress); + return null; + } + case HostComponent: + { + popHostContext(workInProgress); + var rootContainerInstance = getRootHostContainer(); + var type = workInProgress.type; + if (current !== null && workInProgress.stateNode != null) { + // If we have an alternate, that means this is an update and we need to + // schedule a side-effect to do the updates. + var oldProps = current.memoizedProps; + // If we get updated because one of our children updated, we don't + // have newProps so we'll have to reuse them. + // TODO: Split the update API as separate for the props vs. children. + // Even better would be if children weren't special cased at all tho. + var instance = workInProgress.stateNode; + var currentHostContext = getHostContext(); + var updatePayload = prepareUpdate(instance, type, oldProps, newProps, rootContainerInstance, currentHostContext); + + updateHostComponent(current, workInProgress, updatePayload, type, oldProps, newProps, rootContainerInstance); + + if (current.ref !== workInProgress.ref) { + markRef(workInProgress); + } + } else { + if (!newProps) { + !(workInProgress.stateNode !== null) ? invariant(false, 'We must have new props for new mounts. This error is likely caused by a bug in React. Please file an issue.') : void 0; + // This can happen when we abort work. + return null; + } + + var _currentHostContext = getHostContext(); + // TODO: Move createInstance to beginWork and keep it on a context + // "stack" as the parent. Then append children as we go in beginWork + // or completeWork depending on we want to add then top->down or + // bottom->up. Top->down is faster in IE11. + var wasHydrated = popHydrationState(workInProgress); + if (wasHydrated) { + // TODO: Move this and createInstance step into the beginPhase + // to consolidate. + if (prepareToHydrateHostInstance(workInProgress, rootContainerInstance, _currentHostContext)) { + // If changes to the hydrated node needs to be applied at the + // commit-phase we mark this as such. + markUpdate(workInProgress); + } + } else { + var _instance = createInstance(type, newProps, rootContainerInstance, _currentHostContext, workInProgress); + + appendAllChildren(_instance, workInProgress); + + // Certain renderers require commit-time effects for initial mount. + // (eg DOM renderer supports auto-focus for certain elements). + // Make sure such renderers get scheduled for later work. + if (finalizeInitialChildren(_instance, type, newProps, rootContainerInstance)) { + markUpdate(workInProgress); + } + workInProgress.stateNode = _instance; + } + + if (workInProgress.ref !== null) { + // If there is a ref on a host node we need to schedule a callback + markRef(workInProgress); + } + } + return null; + } + case HostText: + { + var newText = newProps; + if (current && workInProgress.stateNode != null) { + var oldText = current.memoizedProps; + // If we have an alternate, that means this is an update and we need + // to schedule a side-effect to do the updates. + updateHostText(current, workInProgress, oldText, newText); + } else { + if (typeof newText !== 'string') { + !(workInProgress.stateNode !== null) ? invariant(false, 'We must have new props for new mounts. This error is likely caused by a bug in React. Please file an issue.') : void 0; + // This can happen when we abort work. + return null; + } + var _rootContainerInstance = getRootHostContainer(); + var _currentHostContext2 = getHostContext(); + var _wasHydrated = popHydrationState(workInProgress); + if (_wasHydrated) { + if (prepareToHydrateHostTextInstance(workInProgress)) { + markUpdate(workInProgress); + } + } else { + workInProgress.stateNode = createTextInstance(newText, _rootContainerInstance, _currentHostContext2, workInProgress); + } + } + return null; + } + case CallComponent: + return moveCallToHandlerPhase(current, workInProgress, renderExpirationTime); + case CallHandlerPhase: + // Reset the tag to now be a first phase call. + workInProgress.tag = CallComponent; + return null; + case ReturnComponent: + // Does nothing. + return null; + case Fragment: + return null; + case HostPortal: + popHostContainer(workInProgress); + updateHostContainer(workInProgress); + return null; + // Error cases + case IndeterminateComponent: + invariant(false, 'An indeterminate component should have become determinate before completing. This error is likely caused by a bug in React. Please file an issue.'); + // eslint-disable-next-line no-fallthrough + default: + invariant(false, 'Unknown unit of work tag. This error is likely caused by a bug in React. Please file an issue.'); + } + } + + return { + completeWork: completeWork + }; +}; + +var invokeGuardedCallback$2 = ReactErrorUtils.invokeGuardedCallback; +var hasCaughtError$1 = ReactErrorUtils.hasCaughtError; +var clearCaughtError$1 = ReactErrorUtils.clearCaughtError; + + +var ReactFiberCommitWork = function (config, captureError) { + var getPublicInstance = config.getPublicInstance, + mutation = config.mutation, + persistence = config.persistence; + + + var callComponentWillUnmountWithTimer = function (current, instance) { + startPhaseTimer(current, 'componentWillUnmount'); + instance.props = current.memoizedProps; + instance.state = current.memoizedState; + instance.componentWillUnmount(); + stopPhaseTimer(); + }; + + // Capture errors so they don't interrupt unmounting. + function safelyCallComponentWillUnmount(current, instance) { + { + invokeGuardedCallback$2(null, callComponentWillUnmountWithTimer, null, current, instance); + if (hasCaughtError$1()) { + var unmountError = clearCaughtError$1(); + captureError(current, unmountError); + } + } + } + + function safelyDetachRef(current) { + var ref = current.ref; + if (ref !== null) { + { + invokeGuardedCallback$2(null, ref, null, null); + if (hasCaughtError$1()) { + var refError = clearCaughtError$1(); + captureError(current, refError); + } + } + } + } + + function commitLifeCycles(current, finishedWork) { + switch (finishedWork.tag) { + case ClassComponent: + { + var instance = finishedWork.stateNode; + if (finishedWork.effectTag & Update) { + if (current === null) { + startPhaseTimer(finishedWork, 'componentDidMount'); + instance.props = finishedWork.memoizedProps; + instance.state = finishedWork.memoizedState; + instance.componentDidMount(); + stopPhaseTimer(); + } else { + var prevProps = current.memoizedProps; + var prevState = current.memoizedState; + startPhaseTimer(finishedWork, 'componentDidUpdate'); + instance.props = finishedWork.memoizedProps; + instance.state = finishedWork.memoizedState; + instance.componentDidUpdate(prevProps, prevState); + stopPhaseTimer(); + } + } + var updateQueue = finishedWork.updateQueue; + if (updateQueue !== null) { + commitCallbacks(updateQueue, instance); + } + return; + } + case HostRoot: + { + var _updateQueue = finishedWork.updateQueue; + if (_updateQueue !== null) { + var _instance = finishedWork.child !== null ? finishedWork.child.stateNode : null; + commitCallbacks(_updateQueue, _instance); + } + return; + } + case HostComponent: + { + var _instance2 = finishedWork.stateNode; + + // Renderers may schedule work to be done after host components are mounted + // (eg DOM renderer may schedule auto-focus for inputs and form controls). + // These effects should only be committed when components are first mounted, + // aka when there is no current/alternate. + if (current === null && finishedWork.effectTag & Update) { + var type = finishedWork.type; + var props = finishedWork.memoizedProps; + commitMount(_instance2, type, props, finishedWork); + } + + return; + } + case HostText: + { + // We have no life-cycles associated with text. + return; + } + case HostPortal: + { + // We have no life-cycles associated with portals. + return; + } + default: + { + invariant(false, 'This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue.'); + } + } + } + + function commitAttachRef(finishedWork) { + var ref = finishedWork.ref; + if (ref !== null) { + var instance = finishedWork.stateNode; + switch (finishedWork.tag) { + case HostComponent: + ref(getPublicInstance(instance)); + break; + default: + ref(instance); + } + } + } + + function commitDetachRef(current) { + var currentRef = current.ref; + if (currentRef !== null) { + currentRef(null); + } + } + + // User-originating errors (lifecycles and refs) should not interrupt + // deletion, so don't let them throw. Host-originating errors should + // interrupt deletion, so it's okay + function commitUnmount(current) { + if (typeof onCommitUnmount === 'function') { + onCommitUnmount(current); + } + + switch (current.tag) { + case ClassComponent: + { + safelyDetachRef(current); + var instance = current.stateNode; + if (typeof instance.componentWillUnmount === 'function') { + safelyCallComponentWillUnmount(current, instance); + } + return; + } + case HostComponent: + { + safelyDetachRef(current); + return; + } + case CallComponent: + { + commitNestedUnmounts(current.stateNode); + return; + } + case HostPortal: + { + // TODO: this is recursive. + // We are also not using this parent because + // the portal will get pushed immediately. + if (enableMutatingReconciler && mutation) { + unmountHostComponents(current); + } else if (enablePersistentReconciler && persistence) { + emptyPortalContainer(current); + } + return; + } + } + } + + function commitNestedUnmounts(root) { + // While we're inside a removed host node we don't want to call + // removeChild on the inner nodes because they're removed by the top + // call anyway. We also want to call componentWillUnmount on all + // composites before this host node is removed from the tree. Therefore + var node = root; + while (true) { + commitUnmount(node); + // Visit children because they may contain more composite or host nodes. + // Skip portals because commitUnmount() currently visits them recursively. + if (node.child !== null && ( + // If we use mutation we drill down into portals using commitUnmount above. + // If we don't use mutation we drill down into portals here instead. + !mutation || node.tag !== HostPortal)) { + node.child['return'] = node; + node = node.child; + continue; + } + if (node === root) { + return; + } + while (node.sibling === null) { + if (node['return'] === null || node['return'] === root) { + return; + } + node = node['return']; + } + node.sibling['return'] = node['return']; + node = node.sibling; + } + } + + function detachFiber(current) { + // Cut off the return pointers to disconnect it from the tree. Ideally, we + // should clear the child pointer of the parent alternate to let this + // get GC:ed but we don't know which for sure which parent is the current + // one so we'll settle for GC:ing the subtree of this child. This child + // itself will be GC:ed when the parent updates the next time. + current['return'] = null; + current.child = null; + if (current.alternate) { + current.alternate.child = null; + current.alternate['return'] = null; + } + } + + if (!mutation) { + var commitContainer = void 0; + if (persistence) { + var replaceContainerChildren = persistence.replaceContainerChildren, + createContainerChildSet = persistence.createContainerChildSet; + + var emptyPortalContainer = function (current) { + var portal = current.stateNode; + var containerInfo = portal.containerInfo; + + var emptyChildSet = createContainerChildSet(containerInfo); + replaceContainerChildren(containerInfo, emptyChildSet); + }; + commitContainer = function (finishedWork) { + switch (finishedWork.tag) { + case ClassComponent: + { + return; + } + case HostComponent: + { + return; + } + case HostText: + { + return; + } + case HostRoot: + case HostPortal: + { + var portalOrRoot = finishedWork.stateNode; + var containerInfo = portalOrRoot.containerInfo, + _pendingChildren = portalOrRoot.pendingChildren; + + replaceContainerChildren(containerInfo, _pendingChildren); + return; + } + default: + { + invariant(false, 'This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue.'); + } + } + }; + } else { + commitContainer = function (finishedWork) { + // Noop + }; + } + if (enablePersistentReconciler || enableNoopReconciler) { + return { + commitResetTextContent: function (finishedWork) {}, + commitPlacement: function (finishedWork) {}, + commitDeletion: function (current) { + // Detach refs and call componentWillUnmount() on the whole subtree. + commitNestedUnmounts(current); + detachFiber(current); + }, + commitWork: function (current, finishedWork) { + commitContainer(finishedWork); + }, + + commitLifeCycles: commitLifeCycles, + commitAttachRef: commitAttachRef, + commitDetachRef: commitDetachRef + }; + } else if (persistence) { + invariant(false, 'Persistent reconciler is disabled.'); + } else { + invariant(false, 'Noop reconciler is disabled.'); + } + } + var commitMount = mutation.commitMount, + commitUpdate = mutation.commitUpdate, + resetTextContent = mutation.resetTextContent, + commitTextUpdate = mutation.commitTextUpdate, + appendChild = mutation.appendChild, + appendChildToContainer = mutation.appendChildToContainer, + insertBefore = mutation.insertBefore, + insertInContainerBefore = mutation.insertInContainerBefore, + removeChild = mutation.removeChild, + removeChildFromContainer = mutation.removeChildFromContainer; + + + function getHostParentFiber(fiber) { + var parent = fiber['return']; + while (parent !== null) { + if (isHostParent(parent)) { + return parent; + } + parent = parent['return']; + } + invariant(false, 'Expected to find a host parent. This error is likely caused by a bug in React. Please file an issue.'); + } + + function isHostParent(fiber) { + return fiber.tag === HostComponent || fiber.tag === HostRoot || fiber.tag === HostPortal; + } + + function getHostSibling(fiber) { + // We're going to search forward into the tree until we find a sibling host + // node. Unfortunately, if multiple insertions are done in a row we have to + // search past them. This leads to exponential search for the next sibling. + var node = fiber; + siblings: while (true) { + // If we didn't find anything, let's try the next sibling. + while (node.sibling === null) { + if (node['return'] === null || isHostParent(node['return'])) { + // If we pop out of the root or hit the parent the fiber we are the + // last sibling. + return null; + } + node = node['return']; + } + node.sibling['return'] = node['return']; + node = node.sibling; + while (node.tag !== HostComponent && node.tag !== HostText) { + // If it is not host node and, we might have a host node inside it. + // Try to search down until we find one. + if (node.effectTag & Placement) { + // If we don't have a child, try the siblings instead. + continue siblings; + } + // If we don't have a child, try the siblings instead. + // We also skip portals because they are not part of this host tree. + if (node.child === null || node.tag === HostPortal) { + continue siblings; + } else { + node.child['return'] = node; + node = node.child; + } + } + // Check if this host node is stable or about to be placed. + if (!(node.effectTag & Placement)) { + // Found it! + return node.stateNode; + } + } + } + + function commitPlacement(finishedWork) { + // Recursively insert all host nodes into the parent. + var parentFiber = getHostParentFiber(finishedWork); + var parent = void 0; + var isContainer = void 0; + switch (parentFiber.tag) { + case HostComponent: + parent = parentFiber.stateNode; + isContainer = false; + break; + case HostRoot: + parent = parentFiber.stateNode.containerInfo; + isContainer = true; + break; + case HostPortal: + parent = parentFiber.stateNode.containerInfo; + isContainer = true; + break; + default: + invariant(false, 'Invalid host parent fiber. This error is likely caused by a bug in React. Please file an issue.'); + } + if (parentFiber.effectTag & ContentReset) { + // Reset the text content of the parent before doing any insertions + resetTextContent(parent); + // Clear ContentReset from the effect tag + parentFiber.effectTag &= ~ContentReset; + } + + var before = getHostSibling(finishedWork); + // We only have the top Fiber that was inserted but we need recurse down its + // children to find all the terminal nodes. + var node = finishedWork; + while (true) { + if (node.tag === HostComponent || node.tag === HostText) { + if (before) { + if (isContainer) { + insertInContainerBefore(parent, node.stateNode, before); + } else { + insertBefore(parent, node.stateNode, before); + } + } else { + if (isContainer) { + appendChildToContainer(parent, node.stateNode); + } else { + appendChild(parent, node.stateNode); + } + } + } else if (node.tag === HostPortal) { + // If the insertion itself is a portal, then we don't want to traverse + // down its children. Instead, we'll get insertions from each child in + // the portal directly. + } else if (node.child !== null) { + node.child['return'] = node; + node = node.child; + continue; + } + if (node === finishedWork) { + return; + } + while (node.sibling === null) { + if (node['return'] === null || node['return'] === finishedWork) { + return; + } + node = node['return']; + } + node.sibling['return'] = node['return']; + node = node.sibling; + } + } + + function unmountHostComponents(current) { + // We only have the top Fiber that was inserted but we need recurse down its + var node = current; + + // Each iteration, currentParent is populated with node's host parent if not + // currentParentIsValid. + var currentParentIsValid = false; + var currentParent = void 0; + var currentParentIsContainer = void 0; + + while (true) { + if (!currentParentIsValid) { + var parent = node['return']; + findParent: while (true) { + !(parent !== null) ? invariant(false, 'Expected to find a host parent. This error is likely caused by a bug in React. Please file an issue.') : void 0; + switch (parent.tag) { + case HostComponent: + currentParent = parent.stateNode; + currentParentIsContainer = false; + break findParent; + case HostRoot: + currentParent = parent.stateNode.containerInfo; + currentParentIsContainer = true; + break findParent; + case HostPortal: + currentParent = parent.stateNode.containerInfo; + currentParentIsContainer = true; + break findParent; + } + parent = parent['return']; + } + currentParentIsValid = true; + } + + if (node.tag === HostComponent || node.tag === HostText) { + commitNestedUnmounts(node); + // After all the children have unmounted, it is now safe to remove the + // node from the tree. + if (currentParentIsContainer) { + removeChildFromContainer(currentParent, node.stateNode); + } else { + removeChild(currentParent, node.stateNode); + } + // Don't visit children because we already visited them. + } else if (node.tag === HostPortal) { + // When we go into a portal, it becomes the parent to remove from. + // We will reassign it back when we pop the portal on the way up. + currentParent = node.stateNode.containerInfo; + // Visit children because portals might contain host components. + if (node.child !== null) { + node.child['return'] = node; + node = node.child; + continue; + } + } else { + commitUnmount(node); + // Visit children because we may find more host components below. + if (node.child !== null) { + node.child['return'] = node; + node = node.child; + continue; + } + } + if (node === current) { + return; + } + while (node.sibling === null) { + if (node['return'] === null || node['return'] === current) { + return; + } + node = node['return']; + if (node.tag === HostPortal) { + // When we go out of the portal, we need to restore the parent. + // Since we don't keep a stack of them, we will search for it. + currentParentIsValid = false; + } + } + node.sibling['return'] = node['return']; + node = node.sibling; + } + } + + function commitDeletion(current) { + // Recursively delete all host nodes from the parent. + // Detach refs and call componentWillUnmount() on the whole subtree. + unmountHostComponents(current); + detachFiber(current); + } + + function commitWork(current, finishedWork) { + switch (finishedWork.tag) { + case ClassComponent: + { + return; + } + case HostComponent: + { + var instance = finishedWork.stateNode; + if (instance != null) { + // Commit the work prepared earlier. + var newProps = finishedWork.memoizedProps; + // For hydration we reuse the update path but we treat the oldProps + // as the newProps. The updatePayload will contain the real change in + // this case. + var oldProps = current !== null ? current.memoizedProps : newProps; + var type = finishedWork.type; + // TODO: Type the updateQueue to be specific to host components. + var updatePayload = finishedWork.updateQueue; + finishedWork.updateQueue = null; + if (updatePayload !== null) { + commitUpdate(instance, updatePayload, type, oldProps, newProps, finishedWork); + } + } + return; + } + case HostText: + { + !(finishedWork.stateNode !== null) ? invariant(false, 'This should have a text node initialized. This error is likely caused by a bug in React. Please file an issue.') : void 0; + var textInstance = finishedWork.stateNode; + var newText = finishedWork.memoizedProps; + // For hydration we reuse the update path but we treat the oldProps + // as the newProps. The updatePayload will contain the real change in + // this case. + var oldText = current !== null ? current.memoizedProps : newText; + commitTextUpdate(textInstance, oldText, newText); + return; + } + case HostRoot: + { + return; + } + default: + { + invariant(false, 'This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue.'); + } + } + } + + function commitResetTextContent(current) { + resetTextContent(current.stateNode); + } + + if (enableMutatingReconciler) { + return { + commitResetTextContent: commitResetTextContent, + commitPlacement: commitPlacement, + commitDeletion: commitDeletion, + commitWork: commitWork, + commitLifeCycles: commitLifeCycles, + commitAttachRef: commitAttachRef, + commitDetachRef: commitDetachRef + }; + } else { + invariant(false, 'Mutating reconciler is disabled.'); + } +}; + +var NO_CONTEXT = {}; + +var ReactFiberHostContext = function (config) { + var getChildHostContext = config.getChildHostContext, + getRootHostContext = config.getRootHostContext; + + + var contextStackCursor = createCursor(NO_CONTEXT); + var contextFiberStackCursor = createCursor(NO_CONTEXT); + var rootInstanceStackCursor = createCursor(NO_CONTEXT); + + function requiredContext(c) { + !(c !== NO_CONTEXT) ? invariant(false, 'Expected host context to exist. This error is likely caused by a bug in React. Please file an issue.') : void 0; + return c; + } + + function getRootHostContainer() { + var rootInstance = requiredContext(rootInstanceStackCursor.current); + return rootInstance; + } + + function pushHostContainer(fiber, nextRootInstance) { + // Push current root instance onto the stack; + // This allows us to reset root when portals are popped. + push(rootInstanceStackCursor, nextRootInstance, fiber); + + var nextRootContext = getRootHostContext(nextRootInstance); + + // Track the context and the Fiber that provided it. + // This enables us to pop only Fibers that provide unique contexts. + push(contextFiberStackCursor, fiber, fiber); + push(contextStackCursor, nextRootContext, fiber); + } + + function popHostContainer(fiber) { + pop(contextStackCursor, fiber); + pop(contextFiberStackCursor, fiber); + pop(rootInstanceStackCursor, fiber); + } + + function getHostContext() { + var context = requiredContext(contextStackCursor.current); + return context; + } + + function pushHostContext(fiber) { + var rootInstance = requiredContext(rootInstanceStackCursor.current); + var context = requiredContext(contextStackCursor.current); + var nextContext = getChildHostContext(context, fiber.type, rootInstance); + + // Don't push this Fiber's context unless it's unique. + if (context === nextContext) { + return; + } + + // Track the context and the Fiber that provided it. + // This enables us to pop only Fibers that provide unique contexts. + push(contextFiberStackCursor, fiber, fiber); + push(contextStackCursor, nextContext, fiber); + } + + function popHostContext(fiber) { + // Do not pop unless this Fiber provided the current context. + // pushHostContext() only pushes Fibers that provide unique contexts. + if (contextFiberStackCursor.current !== fiber) { + return; + } + + pop(contextStackCursor, fiber); + pop(contextFiberStackCursor, fiber); + } + + function resetHostContainer() { + contextStackCursor.current = NO_CONTEXT; + rootInstanceStackCursor.current = NO_CONTEXT; + } + + return { + getHostContext: getHostContext, + getRootHostContainer: getRootHostContainer, + popHostContainer: popHostContainer, + popHostContext: popHostContext, + pushHostContainer: pushHostContainer, + pushHostContext: pushHostContext, + resetHostContainer: resetHostContainer + }; +}; + +var ReactFiberHydrationContext = function (config) { + var shouldSetTextContent = config.shouldSetTextContent, + hydration = config.hydration; + + // If this doesn't have hydration mode. + + if (!hydration) { + return { + enterHydrationState: function () { + return false; + }, + resetHydrationState: function () {}, + tryToClaimNextHydratableInstance: function () {}, + prepareToHydrateHostInstance: function () { + invariant(false, 'Expected prepareToHydrateHostInstance() to never be called. This error is likely caused by a bug in React. Please file an issue.'); + }, + prepareToHydrateHostTextInstance: function () { + invariant(false, 'Expected prepareToHydrateHostTextInstance() to never be called. This error is likely caused by a bug in React. Please file an issue.'); + }, + popHydrationState: function (fiber) { + return false; + } + }; + } + + var canHydrateInstance = hydration.canHydrateInstance, + canHydrateTextInstance = hydration.canHydrateTextInstance, + getNextHydratableSibling = hydration.getNextHydratableSibling, + getFirstHydratableChild = hydration.getFirstHydratableChild, + hydrateInstance = hydration.hydrateInstance, + hydrateTextInstance = hydration.hydrateTextInstance, + didNotMatchHydratedContainerTextInstance = hydration.didNotMatchHydratedContainerTextInstance, + didNotMatchHydratedTextInstance = hydration.didNotMatchHydratedTextInstance, + didNotHydrateContainerInstance = hydration.didNotHydrateContainerInstance, + didNotHydrateInstance = hydration.didNotHydrateInstance, + didNotFindHydratableContainerInstance = hydration.didNotFindHydratableContainerInstance, + didNotFindHydratableContainerTextInstance = hydration.didNotFindHydratableContainerTextInstance, + didNotFindHydratableInstance = hydration.didNotFindHydratableInstance, + didNotFindHydratableTextInstance = hydration.didNotFindHydratableTextInstance; + + // The deepest Fiber on the stack involved in a hydration context. + // This may have been an insertion or a hydration. + + var hydrationParentFiber = null; + var nextHydratableInstance = null; + var isHydrating = false; + + function enterHydrationState(fiber) { + var parentInstance = fiber.stateNode.containerInfo; + nextHydratableInstance = getFirstHydratableChild(parentInstance); + hydrationParentFiber = fiber; + isHydrating = true; + return true; + } + + function deleteHydratableInstance(returnFiber, instance) { + { + switch (returnFiber.tag) { + case HostRoot: + didNotHydrateContainerInstance(returnFiber.stateNode.containerInfo, instance); + break; + case HostComponent: + didNotHydrateInstance(returnFiber.type, returnFiber.memoizedProps, returnFiber.stateNode, instance); + break; + } + } + + var childToDelete = createFiberFromHostInstanceForDeletion(); + childToDelete.stateNode = instance; + childToDelete['return'] = returnFiber; + childToDelete.effectTag = Deletion; + + // This might seem like it belongs on progressedFirstDeletion. However, + // these children are not part of the reconciliation list of children. + // Even if we abort and rereconcile the children, that will try to hydrate + // again and the nodes are still in the host tree so these will be + // recreated. + if (returnFiber.lastEffect !== null) { + returnFiber.lastEffect.nextEffect = childToDelete; + returnFiber.lastEffect = childToDelete; + } else { + returnFiber.firstEffect = returnFiber.lastEffect = childToDelete; + } + } + + function insertNonHydratedInstance(returnFiber, fiber) { + fiber.effectTag |= Placement; + { + switch (returnFiber.tag) { + case HostRoot: + { + var parentContainer = returnFiber.stateNode.containerInfo; + switch (fiber.tag) { + case HostComponent: + var type = fiber.type; + var props = fiber.pendingProps; + didNotFindHydratableContainerInstance(parentContainer, type, props); + break; + case HostText: + var text = fiber.pendingProps; + didNotFindHydratableContainerTextInstance(parentContainer, text); + break; + } + break; + } + case HostComponent: + { + var parentType = returnFiber.type; + var parentProps = returnFiber.memoizedProps; + var parentInstance = returnFiber.stateNode; + switch (fiber.tag) { + case HostComponent: + var _type = fiber.type; + var _props = fiber.pendingProps; + didNotFindHydratableInstance(parentType, parentProps, parentInstance, _type, _props); + break; + case HostText: + var _text = fiber.pendingProps; + didNotFindHydratableTextInstance(parentType, parentProps, parentInstance, _text); + break; + } + break; + } + default: + return; + } + } + } + + function tryHydrate(fiber, nextInstance) { + switch (fiber.tag) { + case HostComponent: + { + var type = fiber.type; + var props = fiber.pendingProps; + var instance = canHydrateInstance(nextInstance, type, props); + if (instance !== null) { + fiber.stateNode = instance; + return true; + } + return false; + } + case HostText: + { + var text = fiber.pendingProps; + var textInstance = canHydrateTextInstance(nextInstance, text); + if (textInstance !== null) { + fiber.stateNode = textInstance; + return true; + } + return false; + } + default: + return false; + } + } + + function tryToClaimNextHydratableInstance(fiber) { + if (!isHydrating) { + return; + } + var nextInstance = nextHydratableInstance; + if (!nextInstance) { + // Nothing to hydrate. Make it an insertion. + insertNonHydratedInstance(hydrationParentFiber, fiber); + isHydrating = false; + hydrationParentFiber = fiber; + return; + } + if (!tryHydrate(fiber, nextInstance)) { + // If we can't hydrate this instance let's try the next one. + // We use this as a heuristic. It's based on intuition and not data so it + // might be flawed or unnecessary. + nextInstance = getNextHydratableSibling(nextInstance); + if (!nextInstance || !tryHydrate(fiber, nextInstance)) { + // Nothing to hydrate. Make it an insertion. + insertNonHydratedInstance(hydrationParentFiber, fiber); + isHydrating = false; + hydrationParentFiber = fiber; + return; + } + // We matched the next one, we'll now assume that the first one was + // superfluous and we'll delete it. Since we can't eagerly delete it + // we'll have to schedule a deletion. To do that, this node needs a dummy + // fiber associated with it. + deleteHydratableInstance(hydrationParentFiber, nextHydratableInstance); + } + hydrationParentFiber = fiber; + nextHydratableInstance = getFirstHydratableChild(nextInstance); + } + + function prepareToHydrateHostInstance(fiber, rootContainerInstance, hostContext) { + var instance = fiber.stateNode; + var updatePayload = hydrateInstance(instance, fiber.type, fiber.memoizedProps, rootContainerInstance, hostContext, fiber); + // TODO: Type this specific to this type of component. + fiber.updateQueue = updatePayload; + // If the update payload indicates that there is a change or if there + // is a new ref we mark this as an update. + if (updatePayload !== null) { + return true; + } + return false; + } + + function prepareToHydrateHostTextInstance(fiber) { + var textInstance = fiber.stateNode; + var textContent = fiber.memoizedProps; + var shouldUpdate = hydrateTextInstance(textInstance, textContent, fiber); + { + if (shouldUpdate) { + // We assume that prepareToHydrateHostTextInstance is called in a context where the + // hydration parent is the parent host component of this host text. + var returnFiber = hydrationParentFiber; + if (returnFiber !== null) { + switch (returnFiber.tag) { + case HostRoot: + { + var parentContainer = returnFiber.stateNode.containerInfo; + didNotMatchHydratedContainerTextInstance(parentContainer, textInstance, textContent); + break; + } + case HostComponent: + { + var parentType = returnFiber.type; + var parentProps = returnFiber.memoizedProps; + var parentInstance = returnFiber.stateNode; + didNotMatchHydratedTextInstance(parentType, parentProps, parentInstance, textInstance, textContent); + break; + } + } + } + } + } + return shouldUpdate; + } + + function popToNextHostParent(fiber) { + var parent = fiber['return']; + while (parent !== null && parent.tag !== HostComponent && parent.tag !== HostRoot) { + parent = parent['return']; + } + hydrationParentFiber = parent; + } + + function popHydrationState(fiber) { + if (fiber !== hydrationParentFiber) { + // We're deeper than the current hydration context, inside an inserted + // tree. + return false; + } + if (!isHydrating) { + // If we're not currently hydrating but we're in a hydration context, then + // we were an insertion and now need to pop up reenter hydration of our + // siblings. + popToNextHostParent(fiber); + isHydrating = true; + return false; + } + + var type = fiber.type; + + // If we have any remaining hydratable nodes, we need to delete them now. + // We only do this deeper than head and body since they tend to have random + // other nodes in them. We also ignore components with pure text content in + // side of them. + // TODO: Better heuristic. + if (fiber.tag !== HostComponent || type !== 'head' && type !== 'body' && !shouldSetTextContent(type, fiber.memoizedProps)) { + var nextInstance = nextHydratableInstance; + while (nextInstance) { + deleteHydratableInstance(fiber, nextInstance); + nextInstance = getNextHydratableSibling(nextInstance); + } + } + + popToNextHostParent(fiber); + nextHydratableInstance = hydrationParentFiber ? getNextHydratableSibling(fiber.stateNode) : null; + return true; + } + + function resetHydrationState() { + hydrationParentFiber = null; + nextHydratableInstance = null; + isHydrating = false; + } + + return { + enterHydrationState: enterHydrationState, + resetHydrationState: resetHydrationState, + tryToClaimNextHydratableInstance: tryToClaimNextHydratableInstance, + prepareToHydrateHostInstance: prepareToHydrateHostInstance, + prepareToHydrateHostTextInstance: prepareToHydrateHostTextInstance, + popHydrationState: popHydrationState + }; +}; + +// This lets us hook into Fiber to debug what it's doing. +// See https://github.com/facebook/react/pull/8033. +// This is not part of the public API, not even for React DevTools. +// You may only inject a debugTool if you work on React Fiber itself. +var ReactFiberInstrumentation = { + debugTool: null +}; + +var ReactFiberInstrumentation_1 = ReactFiberInstrumentation; + +var defaultShowDialog = function (capturedError) { + return true; +}; + +var showDialog = defaultShowDialog; + +function logCapturedError(capturedError) { + var logError = showDialog(capturedError); + + // Allow injected showDialog() to prevent default console.error logging. + // This enables renderers like ReactNative to better manage redbox behavior. + if (logError === false) { + return; + } + + var error = capturedError.error; + var suppressLogging = error && error.suppressReactErrorLogging; + if (suppressLogging) { + return; + } + + { + var componentName = capturedError.componentName, + componentStack = capturedError.componentStack, + errorBoundaryName = capturedError.errorBoundaryName, + errorBoundaryFound = capturedError.errorBoundaryFound, + willRetry = capturedError.willRetry; + + + var componentNameMessage = componentName ? 'The above error occurred in the <' + componentName + '> component:' : 'The above error occurred in one of your React components:'; + + var errorBoundaryMessage = void 0; + // errorBoundaryFound check is sufficient; errorBoundaryName check is to satisfy Flow. + if (errorBoundaryFound && errorBoundaryName) { + if (willRetry) { + errorBoundaryMessage = 'React will try to recreate this component tree from scratch ' + ('using the error boundary you provided, ' + errorBoundaryName + '.'); + } else { + errorBoundaryMessage = 'This error was initially handled by the error boundary ' + errorBoundaryName + '.\n' + 'Recreating the tree from scratch failed so React will unmount the tree.'; + } + } else { + errorBoundaryMessage = 'Consider adding an error boundary to your tree to customize error handling behavior.\n' + 'Visit https://fb.me/react-error-boundaries to learn more about error boundaries.'; + } + var combinedMessage = '' + componentNameMessage + componentStack + '\n\n' + ('' + errorBoundaryMessage); + + // In development, we provide our own message with just the component stack. + // We don't include the original error message and JS stack because the browser + // has already printed it. Even if the application swallows the error, it is still + // displayed by the browser thanks to the DEV-only fake event trick in ReactErrorUtils. + console.error(combinedMessage); + } +} + +var invokeGuardedCallback$1 = ReactErrorUtils.invokeGuardedCallback; +var hasCaughtError = ReactErrorUtils.hasCaughtError; +var clearCaughtError = ReactErrorUtils.clearCaughtError; + + +{ + var didWarnAboutStateTransition = false; + var didWarnSetStateChildContext = false; + var didWarnStateUpdateForUnmountedComponent = {}; + + var warnAboutUpdateOnUnmounted = function (fiber) { + var componentName = getComponentName(fiber) || 'ReactClass'; + if (didWarnStateUpdateForUnmountedComponent[componentName]) { + return; + } + warning(false, 'Can only update a mounted or mounting ' + 'component. This usually means you called setState, replaceState, ' + 'or forceUpdate on an unmounted component. This is a no-op.\n\nPlease ' + 'check the code for the %s component.', componentName); + didWarnStateUpdateForUnmountedComponent[componentName] = true; + }; + + var warnAboutInvalidUpdates = function (instance) { + switch (ReactDebugCurrentFiber.phase) { + case 'getChildContext': + if (didWarnSetStateChildContext) { + return; + } + warning(false, 'setState(...): Cannot call setState() inside getChildContext()'); + didWarnSetStateChildContext = true; + break; + case 'render': + if (didWarnAboutStateTransition) { + return; + } + warning(false, 'Cannot update during an existing state transition (such as within ' + "`render` or another component's constructor). Render methods should " + 'be a pure function of props and state; constructor side-effects are ' + 'an anti-pattern, but can be moved to `componentWillMount`.'); + didWarnAboutStateTransition = true; + break; + } + }; +} + +var ReactFiberScheduler = function (config) { + var hostContext = ReactFiberHostContext(config); + var hydrationContext = ReactFiberHydrationContext(config); + var popHostContainer = hostContext.popHostContainer, + popHostContext = hostContext.popHostContext, + resetHostContainer = hostContext.resetHostContainer; + + var _ReactFiberBeginWork = ReactFiberBeginWork(config, hostContext, hydrationContext, scheduleWork, computeExpirationForFiber), + beginWork = _ReactFiberBeginWork.beginWork, + beginFailedWork = _ReactFiberBeginWork.beginFailedWork; + + var _ReactFiberCompleteWo = ReactFiberCompleteWork(config, hostContext, hydrationContext), + completeWork = _ReactFiberCompleteWo.completeWork; + + var _ReactFiberCommitWork = ReactFiberCommitWork(config, captureError), + commitResetTextContent = _ReactFiberCommitWork.commitResetTextContent, + commitPlacement = _ReactFiberCommitWork.commitPlacement, + commitDeletion = _ReactFiberCommitWork.commitDeletion, + commitWork = _ReactFiberCommitWork.commitWork, + commitLifeCycles = _ReactFiberCommitWork.commitLifeCycles, + commitAttachRef = _ReactFiberCommitWork.commitAttachRef, + commitDetachRef = _ReactFiberCommitWork.commitDetachRef; + + var now = config.now, + scheduleDeferredCallback = config.scheduleDeferredCallback, + cancelDeferredCallback = config.cancelDeferredCallback, + useSyncScheduling = config.useSyncScheduling, + prepareForCommit = config.prepareForCommit, + resetAfterCommit = config.resetAfterCommit; + + // Represents the current time in ms. + + var startTime = now(); + var mostRecentCurrentTime = msToExpirationTime(0); + + // Represents the expiration time that incoming updates should use. (If this + // is NoWork, use the default strategy: async updates in async mode, sync + // updates in sync mode.) + var expirationContext = NoWork; + + var isWorking = false; + + // The next work in progress fiber that we're currently working on. + var nextUnitOfWork = null; + var nextRoot = null; + // The time at which we're currently rendering work. + var nextRenderExpirationTime = NoWork; + + // The next fiber with an effect that we're currently committing. + var nextEffect = null; + + // Keep track of which fibers have captured an error that need to be handled. + // Work is removed from this collection after componentDidCatch is called. + var capturedErrors = null; + // Keep track of which fibers have failed during the current batch of work. + // This is a different set than capturedErrors, because it is not reset until + // the end of the batch. This is needed to propagate errors correctly if a + // subtree fails more than once. + var failedBoundaries = null; + // Error boundaries that captured an error during the current commit. + var commitPhaseBoundaries = null; + var firstUncaughtError = null; + var didFatal = false; + + var isCommitting = false; + var isUnmounting = false; + + // Used for performance tracking. + var interruptedBy = null; + + function resetContextStack() { + // Reset the stack + reset$1(); + // Reset the cursors + resetContext(); + resetHostContainer(); + } + + function commitAllHostEffects() { + while (nextEffect !== null) { + { + ReactDebugCurrentFiber.setCurrentFiber(nextEffect); + } + recordEffect(); + + var effectTag = nextEffect.effectTag; + if (effectTag & ContentReset) { + commitResetTextContent(nextEffect); + } + + if (effectTag & Ref) { + var current = nextEffect.alternate; + if (current !== null) { + commitDetachRef(current); + } + } + + // The following switch statement is only concerned about placement, + // updates, and deletions. To avoid needing to add a case for every + // possible bitmap value, we remove the secondary effects from the + // effect tag and switch on that value. + var primaryEffectTag = effectTag & ~(Callback | Err | ContentReset | Ref | PerformedWork); + switch (primaryEffectTag) { + case Placement: + { + commitPlacement(nextEffect); + // Clear the "placement" from effect tag so that we know that this is inserted, before + // any life-cycles like componentDidMount gets called. + // TODO: findDOMNode doesn't rely on this any more but isMounted + // does and isMounted is deprecated anyway so we should be able + // to kill this. + nextEffect.effectTag &= ~Placement; + break; + } + case PlacementAndUpdate: + { + // Placement + commitPlacement(nextEffect); + // Clear the "placement" from effect tag so that we know that this is inserted, before + // any life-cycles like componentDidMount gets called. + nextEffect.effectTag &= ~Placement; + + // Update + var _current = nextEffect.alternate; + commitWork(_current, nextEffect); + break; + } + case Update: + { + var _current2 = nextEffect.alternate; + commitWork(_current2, nextEffect); + break; + } + case Deletion: + { + isUnmounting = true; + commitDeletion(nextEffect); + isUnmounting = false; + break; + } + } + nextEffect = nextEffect.nextEffect; + } + + { + ReactDebugCurrentFiber.resetCurrentFiber(); + } + } + + function commitAllLifeCycles() { + while (nextEffect !== null) { + var effectTag = nextEffect.effectTag; + + if (effectTag & (Update | Callback)) { + recordEffect(); + var current = nextEffect.alternate; + commitLifeCycles(current, nextEffect); + } + + if (effectTag & Ref) { + recordEffect(); + commitAttachRef(nextEffect); + } + + if (effectTag & Err) { + recordEffect(); + commitErrorHandling(nextEffect); + } + + var next = nextEffect.nextEffect; + // Ensure that we clean these up so that we don't accidentally keep them. + // I'm not actually sure this matters because we can't reset firstEffect + // and lastEffect since they're on every node, not just the effectful + // ones. So we have to clean everything as we reuse nodes anyway. + nextEffect.nextEffect = null; + // Ensure that we reset the effectTag here so that we can rely on effect + // tags to reason about the current life-cycle. + nextEffect = next; + } + } + + function commitRoot(finishedWork) { + // We keep track of this so that captureError can collect any boundaries + // that capture an error during the commit phase. The reason these aren't + // local to this function is because errors that occur during cWU are + // captured elsewhere, to prevent the unmount from being interrupted. + isWorking = true; + isCommitting = true; + startCommitTimer(); + + var root = finishedWork.stateNode; + !(root.current !== finishedWork) ? invariant(false, 'Cannot commit the same tree as before. This is probably a bug related to the return field. This error is likely caused by a bug in React. Please file an issue.') : void 0; + root.isReadyForCommit = false; + + // Reset this to null before calling lifecycles + ReactCurrentOwner.current = null; + + var firstEffect = void 0; + if (finishedWork.effectTag > PerformedWork) { + // A fiber's effect list consists only of its children, not itself. So if + // the root has an effect, we need to add it to the end of the list. The + // resulting list is the set that would belong to the root's parent, if + // it had one; that is, all the effects in the tree including the root. + if (finishedWork.lastEffect !== null) { + finishedWork.lastEffect.nextEffect = finishedWork; + firstEffect = finishedWork.firstEffect; + } else { + firstEffect = finishedWork; + } + } else { + // There is no effect on the root. + firstEffect = finishedWork.firstEffect; + } + + prepareForCommit(); + + // Commit all the side-effects within a tree. We'll do this in two passes. + // The first pass performs all the host insertions, updates, deletions and + // ref unmounts. + nextEffect = firstEffect; + startCommitHostEffectsTimer(); + while (nextEffect !== null) { + var didError = false; + var _error = void 0; + { + invokeGuardedCallback$1(null, commitAllHostEffects, null); + if (hasCaughtError()) { + didError = true; + _error = clearCaughtError(); + } + } + if (didError) { + !(nextEffect !== null) ? invariant(false, 'Should have next effect. This error is likely caused by a bug in React. Please file an issue.') : void 0; + captureError(nextEffect, _error); + // Clean-up + if (nextEffect !== null) { + nextEffect = nextEffect.nextEffect; + } + } + } + stopCommitHostEffectsTimer(); + + resetAfterCommit(); + + // The work-in-progress tree is now the current tree. This must come after + // the first pass of the commit phase, so that the previous tree is still + // current during componentWillUnmount, but before the second pass, so that + // the finished work is current during componentDidMount/Update. + root.current = finishedWork; + + // In the second pass we'll perform all life-cycles and ref callbacks. + // Life-cycles happen as a separate pass so that all placements, updates, + // and deletions in the entire tree have already been invoked. + // This pass also triggers any renderer-specific initial effects. + nextEffect = firstEffect; + startCommitLifeCyclesTimer(); + while (nextEffect !== null) { + var _didError = false; + var _error2 = void 0; + { + invokeGuardedCallback$1(null, commitAllLifeCycles, null); + if (hasCaughtError()) { + _didError = true; + _error2 = clearCaughtError(); + } + } + if (_didError) { + !(nextEffect !== null) ? invariant(false, 'Should have next effect. This error is likely caused by a bug in React. Please file an issue.') : void 0; + captureError(nextEffect, _error2); + if (nextEffect !== null) { + nextEffect = nextEffect.nextEffect; + } + } + } + + isCommitting = false; + isWorking = false; + stopCommitLifeCyclesTimer(); + stopCommitTimer(); + if (typeof onCommitRoot === 'function') { + onCommitRoot(finishedWork.stateNode); + } + if (true && ReactFiberInstrumentation_1.debugTool) { + ReactFiberInstrumentation_1.debugTool.onCommitWork(finishedWork); + } + + // If we caught any errors during this commit, schedule their boundaries + // to update. + if (commitPhaseBoundaries) { + commitPhaseBoundaries.forEach(scheduleErrorRecovery); + commitPhaseBoundaries = null; + } + + if (firstUncaughtError !== null) { + var _error3 = firstUncaughtError; + firstUncaughtError = null; + onUncaughtError(_error3); + } + + var remainingTime = root.current.expirationTime; + + if (remainingTime === NoWork) { + capturedErrors = null; + failedBoundaries = null; + } + + return remainingTime; + } + + function resetExpirationTime(workInProgress, renderTime) { + if (renderTime !== Never && workInProgress.expirationTime === Never) { + // The children of this component are hidden. Don't bubble their + // expiration times. + return; + } + + // Check for pending updates. + var newExpirationTime = getUpdateExpirationTime(workInProgress); + + // TODO: Calls need to visit stateNode + + // Bubble up the earliest expiration time. + var child = workInProgress.child; + while (child !== null) { + if (child.expirationTime !== NoWork && (newExpirationTime === NoWork || newExpirationTime > child.expirationTime)) { + newExpirationTime = child.expirationTime; + } + child = child.sibling; + } + workInProgress.expirationTime = newExpirationTime; + } + + function completeUnitOfWork(workInProgress) { + while (true) { + // The current, flushed, state of this fiber is the alternate. + // Ideally nothing should rely on this, but relying on it here + // means that we don't need an additional field on the work in + // progress. + var current = workInProgress.alternate; + { + ReactDebugCurrentFiber.setCurrentFiber(workInProgress); + } + var next = completeWork(current, workInProgress, nextRenderExpirationTime); + { + ReactDebugCurrentFiber.resetCurrentFiber(); + } + + var returnFiber = workInProgress['return']; + var siblingFiber = workInProgress.sibling; + + resetExpirationTime(workInProgress, nextRenderExpirationTime); + + if (next !== null) { + stopWorkTimer(workInProgress); + if (true && ReactFiberInstrumentation_1.debugTool) { + ReactFiberInstrumentation_1.debugTool.onCompleteWork(workInProgress); + } + // If completing this work spawned new work, do that next. We'll come + // back here again. + return next; + } + + if (returnFiber !== null) { + // Append all the effects of the subtree and this fiber onto the effect + // list of the parent. The completion order of the children affects the + // side-effect order. + if (returnFiber.firstEffect === null) { + returnFiber.firstEffect = workInProgress.firstEffect; + } + if (workInProgress.lastEffect !== null) { + if (returnFiber.lastEffect !== null) { + returnFiber.lastEffect.nextEffect = workInProgress.firstEffect; + } + returnFiber.lastEffect = workInProgress.lastEffect; + } + + // If this fiber had side-effects, we append it AFTER the children's + // side-effects. We can perform certain side-effects earlier if + // needed, by doing multiple passes over the effect list. We don't want + // to schedule our own side-effect on our own list because if end up + // reusing children we'll schedule this effect onto itself since we're + // at the end. + var effectTag = workInProgress.effectTag; + // Skip both NoWork and PerformedWork tags when creating the effect list. + // PerformedWork effect is read by React DevTools but shouldn't be committed. + if (effectTag > PerformedWork) { + if (returnFiber.lastEffect !== null) { + returnFiber.lastEffect.nextEffect = workInProgress; + } else { + returnFiber.firstEffect = workInProgress; + } + returnFiber.lastEffect = workInProgress; + } + } + + stopWorkTimer(workInProgress); + if (true && ReactFiberInstrumentation_1.debugTool) { + ReactFiberInstrumentation_1.debugTool.onCompleteWork(workInProgress); + } + + if (siblingFiber !== null) { + // If there is more work to do in this returnFiber, do that next. + return siblingFiber; + } else if (returnFiber !== null) { + // If there's no more work in this returnFiber. Complete the returnFiber. + workInProgress = returnFiber; + continue; + } else { + // We've reached the root. + var root = workInProgress.stateNode; + root.isReadyForCommit = true; + return null; + } + } + + // Without this explicit null return Flow complains of invalid return type + // TODO Remove the above while(true) loop + // eslint-disable-next-line no-unreachable + return null; + } + + function performUnitOfWork(workInProgress) { + // The current, flushed, state of this fiber is the alternate. + // Ideally nothing should rely on this, but relying on it here + // means that we don't need an additional field on the work in + // progress. + var current = workInProgress.alternate; + + // See if beginning this work spawns more work. + startWorkTimer(workInProgress); + { + ReactDebugCurrentFiber.setCurrentFiber(workInProgress); + } + + var next = beginWork(current, workInProgress, nextRenderExpirationTime); + { + ReactDebugCurrentFiber.resetCurrentFiber(); + } + if (true && ReactFiberInstrumentation_1.debugTool) { + ReactFiberInstrumentation_1.debugTool.onBeginWork(workInProgress); + } + + if (next === null) { + // If this doesn't spawn new work, complete the current work. + next = completeUnitOfWork(workInProgress); + } + + ReactCurrentOwner.current = null; + + return next; + } + + function performFailedUnitOfWork(workInProgress) { + // The current, flushed, state of this fiber is the alternate. + // Ideally nothing should rely on this, but relying on it here + // means that we don't need an additional field on the work in + // progress. + var current = workInProgress.alternate; + + // See if beginning this work spawns more work. + startWorkTimer(workInProgress); + { + ReactDebugCurrentFiber.setCurrentFiber(workInProgress); + } + var next = beginFailedWork(current, workInProgress, nextRenderExpirationTime); + { + ReactDebugCurrentFiber.resetCurrentFiber(); + } + if (true && ReactFiberInstrumentation_1.debugTool) { + ReactFiberInstrumentation_1.debugTool.onBeginWork(workInProgress); + } + + if (next === null) { + // If this doesn't spawn new work, complete the current work. + next = completeUnitOfWork(workInProgress); + } + + ReactCurrentOwner.current = null; + + return next; + } + + function workLoop(expirationTime) { + if (capturedErrors !== null) { + // If there are unhandled errors, switch to the slow work loop. + // TODO: How to avoid this check in the fast path? Maybe the renderer + // could keep track of which roots have unhandled errors and call a + // forked version of renderRoot. + slowWorkLoopThatChecksForFailedWork(expirationTime); + return; + } + if (nextRenderExpirationTime === NoWork || nextRenderExpirationTime > expirationTime) { + return; + } + + if (nextRenderExpirationTime <= mostRecentCurrentTime) { + // Flush all expired work. + while (nextUnitOfWork !== null) { + nextUnitOfWork = performUnitOfWork(nextUnitOfWork); + } + } else { + // Flush asynchronous work until the deadline runs out of time. + while (nextUnitOfWork !== null && !shouldYield()) { + nextUnitOfWork = performUnitOfWork(nextUnitOfWork); + } + } + } + + function slowWorkLoopThatChecksForFailedWork(expirationTime) { + if (nextRenderExpirationTime === NoWork || nextRenderExpirationTime > expirationTime) { + return; + } + + if (nextRenderExpirationTime <= mostRecentCurrentTime) { + // Flush all expired work. + while (nextUnitOfWork !== null) { + if (hasCapturedError(nextUnitOfWork)) { + // Use a forked version of performUnitOfWork + nextUnitOfWork = performFailedUnitOfWork(nextUnitOfWork); + } else { + nextUnitOfWork = performUnitOfWork(nextUnitOfWork); + } + } + } else { + // Flush asynchronous work until the deadline runs out of time. + while (nextUnitOfWork !== null && !shouldYield()) { + if (hasCapturedError(nextUnitOfWork)) { + // Use a forked version of performUnitOfWork + nextUnitOfWork = performFailedUnitOfWork(nextUnitOfWork); + } else { + nextUnitOfWork = performUnitOfWork(nextUnitOfWork); + } + } + } + } + + function renderRootCatchBlock(root, failedWork, boundary, expirationTime) { + // We're going to restart the error boundary that captured the error. + // Conceptually, we're unwinding the stack. We need to unwind the + // context stack, too. + unwindContexts(failedWork, boundary); + + // Restart the error boundary using a forked version of + // performUnitOfWork that deletes the boundary's children. The entire + // failed subree will be unmounted. During the commit phase, a special + // lifecycle method is called on the error boundary, which triggers + // a re-render. + nextUnitOfWork = performFailedUnitOfWork(boundary); + + // Continue working. + workLoop(expirationTime); + } + + function renderRoot(root, expirationTime) { + !!isWorking ? invariant(false, 'renderRoot was called recursively. This error is likely caused by a bug in React. Please file an issue.') : void 0; + isWorking = true; + + // We're about to mutate the work-in-progress tree. If the root was pending + // commit, it no longer is: we'll need to complete it again. + root.isReadyForCommit = false; + + // Check if we're starting from a fresh stack, or if we're resuming from + // previously yielded work. + if (root !== nextRoot || expirationTime !== nextRenderExpirationTime || nextUnitOfWork === null) { + // Reset the stack and start working from the root. + resetContextStack(); + nextRoot = root; + nextRenderExpirationTime = expirationTime; + nextUnitOfWork = createWorkInProgress(nextRoot.current, null, expirationTime); + } + + startWorkLoopTimer(nextUnitOfWork); + + var didError = false; + var error = null; + { + invokeGuardedCallback$1(null, workLoop, null, expirationTime); + if (hasCaughtError()) { + didError = true; + error = clearCaughtError(); + } + } + + // An error was thrown during the render phase. + while (didError) { + if (didFatal) { + // This was a fatal error. Don't attempt to recover from it. + firstUncaughtError = error; + break; + } + + var failedWork = nextUnitOfWork; + if (failedWork === null) { + // An error was thrown but there's no current unit of work. This can + // happen during the commit phase if there's a bug in the renderer. + didFatal = true; + continue; + } + + // "Capture" the error by finding the nearest boundary. If there is no + // error boundary, we use the root. + var boundary = captureError(failedWork, error); + !(boundary !== null) ? invariant(false, 'Should have found an error boundary. This error is likely caused by a bug in React. Please file an issue.') : void 0; + + if (didFatal) { + // The error we just captured was a fatal error. This happens + // when the error propagates to the root more than once. + continue; + } + + didError = false; + error = null; + { + invokeGuardedCallback$1(null, renderRootCatchBlock, null, root, failedWork, boundary, expirationTime); + if (hasCaughtError()) { + didError = true; + error = clearCaughtError(); + continue; + } + } + // We're finished working. Exit the error loop. + break; + } + + var uncaughtError = firstUncaughtError; + + // We're done performing work. Time to clean up. + stopWorkLoopTimer(interruptedBy); + interruptedBy = null; + isWorking = false; + didFatal = false; + firstUncaughtError = null; + + if (uncaughtError !== null) { + onUncaughtError(uncaughtError); + } + + return root.isReadyForCommit ? root.current.alternate : null; + } + + // Returns the boundary that captured the error, or null if the error is ignored + function captureError(failedWork, error) { + // It is no longer valid because we exited the user code. + ReactCurrentOwner.current = null; + { + ReactDebugCurrentFiber.resetCurrentFiber(); + } + + // Search for the nearest error boundary. + var boundary = null; + + // Passed to logCapturedError() + var errorBoundaryFound = false; + var willRetry = false; + var errorBoundaryName = null; + + // Host containers are a special case. If the failed work itself is a host + // container, then it acts as its own boundary. In all other cases, we + // ignore the work itself and only search through the parents. + if (failedWork.tag === HostRoot) { + boundary = failedWork; + + if (isFailedBoundary(failedWork)) { + // If this root already failed, there must have been an error when + // attempting to unmount it. This is a worst-case scenario and + // should only be possible if there's a bug in the renderer. + didFatal = true; + } + } else { + var node = failedWork['return']; + while (node !== null && boundary === null) { + if (node.tag === ClassComponent) { + var instance = node.stateNode; + if (typeof instance.componentDidCatch === 'function') { + errorBoundaryFound = true; + errorBoundaryName = getComponentName(node); + + // Found an error boundary! + boundary = node; + willRetry = true; + } + } else if (node.tag === HostRoot) { + // Treat the root like a no-op error boundary + boundary = node; + } + + if (isFailedBoundary(node)) { + // This boundary is already in a failed state. + + // If we're currently unmounting, that means this error was + // thrown while unmounting a failed subtree. We should ignore + // the error. + if (isUnmounting) { + return null; + } + + // If we're in the commit phase, we should check to see if + // this boundary already captured an error during this commit. + // This case exists because multiple errors can be thrown during + // a single commit without interruption. + if (commitPhaseBoundaries !== null && (commitPhaseBoundaries.has(node) || node.alternate !== null && commitPhaseBoundaries.has(node.alternate))) { + // If so, we should ignore this error. + return null; + } + + // The error should propagate to the next boundary -— we keep looking. + boundary = null; + willRetry = false; + } + + node = node['return']; + } + } + + if (boundary !== null) { + // Add to the collection of failed boundaries. This lets us know that + // subsequent errors in this subtree should propagate to the next boundary. + if (failedBoundaries === null) { + failedBoundaries = new Set(); + } + failedBoundaries.add(boundary); + + // This method is unsafe outside of the begin and complete phases. + // We might be in the commit phase when an error is captured. + // The risk is that the return path from this Fiber may not be accurate. + // That risk is acceptable given the benefit of providing users more context. + var _componentStack = getStackAddendumByWorkInProgressFiber(failedWork); + var _componentName = getComponentName(failedWork); + + // Add to the collection of captured errors. This is stored as a global + // map of errors and their component stack location keyed by the boundaries + // that capture them. We mostly use this Map as a Set; it's a Map only to + // avoid adding a field to Fiber to store the error. + if (capturedErrors === null) { + capturedErrors = new Map(); + } + + var capturedError = { + componentName: _componentName, + componentStack: _componentStack, + error: error, + errorBoundary: errorBoundaryFound ? boundary.stateNode : null, + errorBoundaryFound: errorBoundaryFound, + errorBoundaryName: errorBoundaryName, + willRetry: willRetry + }; + + capturedErrors.set(boundary, capturedError); + + try { + logCapturedError(capturedError); + } catch (e) { + // Prevent cycle if logCapturedError() throws. + // A cycle may still occur if logCapturedError renders a component that throws. + var suppressLogging = e && e.suppressReactErrorLogging; + if (!suppressLogging) { + console.error(e); + } + } + + // If we're in the commit phase, defer scheduling an update on the + // boundary until after the commit is complete + if (isCommitting) { + if (commitPhaseBoundaries === null) { + commitPhaseBoundaries = new Set(); + } + commitPhaseBoundaries.add(boundary); + } else { + // Otherwise, schedule an update now. + // TODO: Is this actually necessary during the render phase? Is it + // possible to unwind and continue rendering at the same priority, + // without corrupting internal state? + scheduleErrorRecovery(boundary); + } + return boundary; + } else if (firstUncaughtError === null) { + // If no boundary is found, we'll need to throw the error + firstUncaughtError = error; + } + return null; + } + + function hasCapturedError(fiber) { + // TODO: capturedErrors should store the boundary instance, to avoid needing + // to check the alternate. + return capturedErrors !== null && (capturedErrors.has(fiber) || fiber.alternate !== null && capturedErrors.has(fiber.alternate)); + } + + function isFailedBoundary(fiber) { + // TODO: failedBoundaries should store the boundary instance, to avoid + // needing to check the alternate. + return failedBoundaries !== null && (failedBoundaries.has(fiber) || fiber.alternate !== null && failedBoundaries.has(fiber.alternate)); + } + + function commitErrorHandling(effectfulFiber) { + var capturedError = void 0; + if (capturedErrors !== null) { + capturedError = capturedErrors.get(effectfulFiber); + capturedErrors['delete'](effectfulFiber); + if (capturedError == null) { + if (effectfulFiber.alternate !== null) { + effectfulFiber = effectfulFiber.alternate; + capturedError = capturedErrors.get(effectfulFiber); + capturedErrors['delete'](effectfulFiber); + } + } + } + + !(capturedError != null) ? invariant(false, 'No error for given unit of work. This error is likely caused by a bug in React. Please file an issue.') : void 0; + + switch (effectfulFiber.tag) { + case ClassComponent: + var instance = effectfulFiber.stateNode; + + var info = { + componentStack: capturedError.componentStack + }; + + // Allow the boundary to handle the error, usually by scheduling + // an update to itself + instance.componentDidCatch(capturedError.error, info); + return; + case HostRoot: + if (firstUncaughtError === null) { + firstUncaughtError = capturedError.error; + } + return; + default: + invariant(false, 'Invalid type of work. This error is likely caused by a bug in React. Please file an issue.'); + } + } + + function unwindContexts(from, to) { + var node = from; + while (node !== null) { + switch (node.tag) { + case ClassComponent: + popContextProvider(node); + break; + case HostComponent: + popHostContext(node); + break; + case HostRoot: + popHostContainer(node); + break; + case HostPortal: + popHostContainer(node); + break; + } + if (node === to || node.alternate === to) { + stopFailedWorkTimer(node); + break; + } else { + stopWorkTimer(node); + } + node = node['return']; + } + } + + function computeAsyncExpiration() { + // Given the current clock time, returns an expiration time. We use rounding + // to batch like updates together. + // Should complete within ~1000ms. 1200ms max. + var currentTime = recalculateCurrentTime(); + var expirationMs = 1000; + var bucketSizeMs = 200; + return computeExpirationBucket(currentTime, expirationMs, bucketSizeMs); + } + + function computeExpirationForFiber(fiber) { + var expirationTime = void 0; + if (expirationContext !== NoWork) { + // An explicit expiration context was set; + expirationTime = expirationContext; + } else if (isWorking) { + if (isCommitting) { + // Updates that occur during the commit phase should have sync priority + // by default. + expirationTime = Sync; + } else { + // Updates during the render phase should expire at the same time as + // the work that is being rendered. + expirationTime = nextRenderExpirationTime; + } + } else { + // No explicit expiration context was set, and we're not currently + // performing work. Calculate a new expiration time. + if (useSyncScheduling && !(fiber.internalContextTag & AsyncUpdates)) { + // This is a sync update + expirationTime = Sync; + } else { + // This is an async update + expirationTime = computeAsyncExpiration(); + } + } + return expirationTime; + } + + function scheduleWork(fiber, expirationTime) { + return scheduleWorkImpl(fiber, expirationTime, false); + } + + function checkRootNeedsClearing(root, fiber, expirationTime) { + if (!isWorking && root === nextRoot && expirationTime < nextRenderExpirationTime) { + // Restart the root from the top. + if (nextUnitOfWork !== null) { + // This is an interruption. (Used for performance tracking.) + interruptedBy = fiber; + } + nextRoot = null; + nextUnitOfWork = null; + nextRenderExpirationTime = NoWork; + } + } + + function scheduleWorkImpl(fiber, expirationTime, isErrorRecovery) { + recordScheduleUpdate(); + + { + if (!isErrorRecovery && fiber.tag === ClassComponent) { + var instance = fiber.stateNode; + warnAboutInvalidUpdates(instance); + } + } + + var node = fiber; + while (node !== null) { + // Walk the parent path to the root and update each node's + // expiration time. + if (node.expirationTime === NoWork || node.expirationTime > expirationTime) { + node.expirationTime = expirationTime; + } + if (node.alternate !== null) { + if (node.alternate.expirationTime === NoWork || node.alternate.expirationTime > expirationTime) { + node.alternate.expirationTime = expirationTime; + } + } + if (node['return'] === null) { + if (node.tag === HostRoot) { + var root = node.stateNode; + + checkRootNeedsClearing(root, fiber, expirationTime); + requestWork(root, expirationTime); + checkRootNeedsClearing(root, fiber, expirationTime); + } else { + { + if (!isErrorRecovery && fiber.tag === ClassComponent) { + warnAboutUpdateOnUnmounted(fiber); + } + } + return; + } + } + node = node['return']; + } + } + + function scheduleErrorRecovery(fiber) { + scheduleWorkImpl(fiber, Sync, true); + } + + function recalculateCurrentTime() { + // Subtract initial time so it fits inside 32bits + var ms = now() - startTime; + mostRecentCurrentTime = msToExpirationTime(ms); + return mostRecentCurrentTime; + } + + function deferredUpdates(fn) { + var previousExpirationContext = expirationContext; + expirationContext = computeAsyncExpiration(); + try { + return fn(); + } finally { + expirationContext = previousExpirationContext; + } + } + + function syncUpdates(fn) { + var previousExpirationContext = expirationContext; + expirationContext = Sync; + try { + return fn(); + } finally { + expirationContext = previousExpirationContext; + } + } + + // TODO: Everything below this is written as if it has been lifted to the + // renderers. I'll do this in a follow-up. + + // Linked-list of roots + var firstScheduledRoot = null; + var lastScheduledRoot = null; + + var callbackExpirationTime = NoWork; + var callbackID = -1; + var isRendering = false; + var nextFlushedRoot = null; + var nextFlushedExpirationTime = NoWork; + var deadlineDidExpire = false; + var hasUnhandledError = false; + var unhandledError = null; + var deadline = null; + + var isBatchingUpdates = false; + var isUnbatchingUpdates = false; + + // Use these to prevent an infinite loop of nested updates + var NESTED_UPDATE_LIMIT = 1000; + var nestedUpdateCount = 0; + + var timeHeuristicForUnitOfWork = 1; + + function scheduleCallbackWithExpiration(expirationTime) { + if (callbackExpirationTime !== NoWork) { + // A callback is already scheduled. Check its expiration time (timeout). + if (expirationTime > callbackExpirationTime) { + // Existing callback has sufficient timeout. Exit. + return; + } else { + // Existing callback has insufficient timeout. Cancel and schedule a + // new one. + cancelDeferredCallback(callbackID); + } + // The request callback timer is already running. Don't start a new one. + } else { + startRequestCallbackTimer(); + } + + // Compute a timeout for the given expiration time. + var currentMs = now() - startTime; + var expirationMs = expirationTimeToMs(expirationTime); + var timeout = expirationMs - currentMs; + + callbackExpirationTime = expirationTime; + callbackID = scheduleDeferredCallback(performAsyncWork, { timeout: timeout }); + } + + // requestWork is called by the scheduler whenever a root receives an update. + // It's up to the renderer to call renderRoot at some point in the future. + function requestWork(root, expirationTime) { + if (nestedUpdateCount > NESTED_UPDATE_LIMIT) { + invariant(false, 'Maximum update depth exceeded. This can happen when a component repeatedly calls setState inside componentWillUpdate or componentDidUpdate. React limits the number of nested updates to prevent infinite loops.'); + } + + // Add the root to the schedule. + // Check if this root is already part of the schedule. + if (root.nextScheduledRoot === null) { + // This root is not already scheduled. Add it. + root.remainingExpirationTime = expirationTime; + if (lastScheduledRoot === null) { + firstScheduledRoot = lastScheduledRoot = root; + root.nextScheduledRoot = root; + } else { + lastScheduledRoot.nextScheduledRoot = root; + lastScheduledRoot = root; + lastScheduledRoot.nextScheduledRoot = firstScheduledRoot; + } + } else { + // This root is already scheduled, but its priority may have increased. + var remainingExpirationTime = root.remainingExpirationTime; + if (remainingExpirationTime === NoWork || expirationTime < remainingExpirationTime) { + // Update the priority. + root.remainingExpirationTime = expirationTime; + } + } + + if (isRendering) { + // Prevent reentrancy. Remaining work will be scheduled at the end of + // the currently rendering batch. + return; + } + + if (isBatchingUpdates) { + // Flush work at the end of the batch. + if (isUnbatchingUpdates) { + // ...unless we're inside unbatchedUpdates, in which case we should + // flush it now. + nextFlushedRoot = root; + nextFlushedExpirationTime = Sync; + performWorkOnRoot(nextFlushedRoot, nextFlushedExpirationTime); + } + return; + } + + // TODO: Get rid of Sync and use current time? + if (expirationTime === Sync) { + performWork(Sync, null); + } else { + scheduleCallbackWithExpiration(expirationTime); + } + } + + function findHighestPriorityRoot() { + var highestPriorityWork = NoWork; + var highestPriorityRoot = null; + + if (lastScheduledRoot !== null) { + var previousScheduledRoot = lastScheduledRoot; + var root = firstScheduledRoot; + while (root !== null) { + var remainingExpirationTime = root.remainingExpirationTime; + if (remainingExpirationTime === NoWork) { + // This root no longer has work. Remove it from the scheduler. + + // TODO: This check is redudant, but Flow is confused by the branch + // below where we set lastScheduledRoot to null, even though we break + // from the loop right after. + !(previousScheduledRoot !== null && lastScheduledRoot !== null) ? invariant(false, 'Should have a previous and last root. This error is likely caused by a bug in React. Please file an issue.') : void 0; + if (root === root.nextScheduledRoot) { + // This is the only root in the list. + root.nextScheduledRoot = null; + firstScheduledRoot = lastScheduledRoot = null; + break; + } else if (root === firstScheduledRoot) { + // This is the first root in the list. + var next = root.nextScheduledRoot; + firstScheduledRoot = next; + lastScheduledRoot.nextScheduledRoot = next; + root.nextScheduledRoot = null; + } else if (root === lastScheduledRoot) { + // This is the last root in the list. + lastScheduledRoot = previousScheduledRoot; + lastScheduledRoot.nextScheduledRoot = firstScheduledRoot; + root.nextScheduledRoot = null; + break; + } else { + previousScheduledRoot.nextScheduledRoot = root.nextScheduledRoot; + root.nextScheduledRoot = null; + } + root = previousScheduledRoot.nextScheduledRoot; + } else { + if (highestPriorityWork === NoWork || remainingExpirationTime < highestPriorityWork) { + // Update the priority, if it's higher + highestPriorityWork = remainingExpirationTime; + highestPriorityRoot = root; + } + if (root === lastScheduledRoot) { + break; + } + previousScheduledRoot = root; + root = root.nextScheduledRoot; + } + } + } + + // If the next root is the same as the previous root, this is a nested + // update. To prevent an infinite loop, increment the nested update count. + var previousFlushedRoot = nextFlushedRoot; + if (previousFlushedRoot !== null && previousFlushedRoot === highestPriorityRoot) { + nestedUpdateCount++; + } else { + // Reset whenever we switch roots. + nestedUpdateCount = 0; + } + nextFlushedRoot = highestPriorityRoot; + nextFlushedExpirationTime = highestPriorityWork; + } + + function performAsyncWork(dl) { + performWork(NoWork, dl); + } + + function performWork(minExpirationTime, dl) { + deadline = dl; + + // Keep working on roots until there's no more work, or until the we reach + // the deadline. + findHighestPriorityRoot(); + + if (enableUserTimingAPI && deadline !== null) { + var didExpire = nextFlushedExpirationTime < recalculateCurrentTime(); + stopRequestCallbackTimer(didExpire); + } + + while (nextFlushedRoot !== null && nextFlushedExpirationTime !== NoWork && (minExpirationTime === NoWork || nextFlushedExpirationTime <= minExpirationTime) && !deadlineDidExpire) { + performWorkOnRoot(nextFlushedRoot, nextFlushedExpirationTime); + // Find the next highest priority work. + findHighestPriorityRoot(); + } + + // We're done flushing work. Either we ran out of time in this callback, + // or there's no more work left with sufficient priority. + + // If we're inside a callback, set this to false since we just completed it. + if (deadline !== null) { + callbackExpirationTime = NoWork; + callbackID = -1; + } + // If there's work left over, schedule a new callback. + if (nextFlushedExpirationTime !== NoWork) { + scheduleCallbackWithExpiration(nextFlushedExpirationTime); + } + + // Clean-up. + deadline = null; + deadlineDidExpire = false; + nestedUpdateCount = 0; + + if (hasUnhandledError) { + var _error4 = unhandledError; + unhandledError = null; + hasUnhandledError = false; + throw _error4; + } + } + + function performWorkOnRoot(root, expirationTime) { + !!isRendering ? invariant(false, 'performWorkOnRoot was called recursively. This error is likely caused by a bug in React. Please file an issue.') : void 0; + + isRendering = true; + + // Check if this is async work or sync/expired work. + // TODO: Pass current time as argument to renderRoot, commitRoot + if (expirationTime <= recalculateCurrentTime()) { + // Flush sync work. + var finishedWork = root.finishedWork; + if (finishedWork !== null) { + // This root is already complete. We can commit it. + root.finishedWork = null; + root.remainingExpirationTime = commitRoot(finishedWork); + } else { + root.finishedWork = null; + finishedWork = renderRoot(root, expirationTime); + if (finishedWork !== null) { + // We've completed the root. Commit it. + root.remainingExpirationTime = commitRoot(finishedWork); + } + } + } else { + // Flush async work. + var _finishedWork = root.finishedWork; + if (_finishedWork !== null) { + // This root is already complete. We can commit it. + root.finishedWork = null; + root.remainingExpirationTime = commitRoot(_finishedWork); + } else { + root.finishedWork = null; + _finishedWork = renderRoot(root, expirationTime); + if (_finishedWork !== null) { + // We've completed the root. Check the deadline one more time + // before committing. + if (!shouldYield()) { + // Still time left. Commit the root. + root.remainingExpirationTime = commitRoot(_finishedWork); + } else { + // There's no time left. Mark this root as complete. We'll come + // back and commit it later. + root.finishedWork = _finishedWork; + } + } + } + } + + isRendering = false; + } + + // When working on async work, the reconciler asks the renderer if it should + // yield execution. For DOM, we implement this with requestIdleCallback. + function shouldYield() { + if (deadline === null) { + return false; + } + if (deadline.timeRemaining() > timeHeuristicForUnitOfWork) { + // Disregard deadline.didTimeout. Only expired work should be flushed + // during a timeout. This path is only hit for non-expired work. + return false; + } + deadlineDidExpire = true; + return true; + } + + // TODO: Not happy about this hook. Conceptually, renderRoot should return a + // tuple of (isReadyForCommit, didError, error) + function onUncaughtError(error) { + !(nextFlushedRoot !== null) ? invariant(false, 'Should be working on a root. This error is likely caused by a bug in React. Please file an issue.') : void 0; + // Unschedule this root so we don't work on it again until there's + // another update. + nextFlushedRoot.remainingExpirationTime = NoWork; + if (!hasUnhandledError) { + hasUnhandledError = true; + unhandledError = error; + } + } + + // TODO: Batching should be implemented at the renderer level, not inside + // the reconciler. + function batchedUpdates(fn, a) { + var previousIsBatchingUpdates = isBatchingUpdates; + isBatchingUpdates = true; + try { + return fn(a); + } finally { + isBatchingUpdates = previousIsBatchingUpdates; + if (!isBatchingUpdates && !isRendering) { + performWork(Sync, null); + } + } + } + + // TODO: Batching should be implemented at the renderer level, not inside + // the reconciler. + function unbatchedUpdates(fn) { + if (isBatchingUpdates && !isUnbatchingUpdates) { + isUnbatchingUpdates = true; + try { + return fn(); + } finally { + isUnbatchingUpdates = false; + } + } + return fn(); + } + + // TODO: Batching should be implemented at the renderer level, not within + // the reconciler. + function flushSync(fn) { + var previousIsBatchingUpdates = isBatchingUpdates; + isBatchingUpdates = true; + try { + return syncUpdates(fn); + } finally { + isBatchingUpdates = previousIsBatchingUpdates; + !!isRendering ? invariant(false, 'flushSync was called from inside a lifecycle method. It cannot be called when React is already rendering.') : void 0; + performWork(Sync, null); + } + } + + return { + computeAsyncExpiration: computeAsyncExpiration, + computeExpirationForFiber: computeExpirationForFiber, + scheduleWork: scheduleWork, + batchedUpdates: batchedUpdates, + unbatchedUpdates: unbatchedUpdates, + flushSync: flushSync, + deferredUpdates: deferredUpdates + }; +}; + +{ + var didWarnAboutNestedUpdates = false; +} + +// 0 is PROD, 1 is DEV. +// Might add PROFILE later. + + +function getContextForSubtree(parentComponent) { + if (!parentComponent) { + return emptyObject; + } + + var fiber = get(parentComponent); + var parentContext = findCurrentUnmaskedContext(fiber); + return isContextProvider(fiber) ? processChildContext(fiber, parentContext) : parentContext; +} + +var ReactFiberReconciler$1 = function (config) { + var getPublicInstance = config.getPublicInstance; + + var _ReactFiberScheduler = ReactFiberScheduler(config), + computeAsyncExpiration = _ReactFiberScheduler.computeAsyncExpiration, + computeExpirationForFiber = _ReactFiberScheduler.computeExpirationForFiber, + scheduleWork = _ReactFiberScheduler.scheduleWork, + batchedUpdates = _ReactFiberScheduler.batchedUpdates, + unbatchedUpdates = _ReactFiberScheduler.unbatchedUpdates, + flushSync = _ReactFiberScheduler.flushSync, + deferredUpdates = _ReactFiberScheduler.deferredUpdates; + + function scheduleTopLevelUpdate(current, element, callback) { + { + if (ReactDebugCurrentFiber.phase === 'render' && ReactDebugCurrentFiber.current !== null && !didWarnAboutNestedUpdates) { + didWarnAboutNestedUpdates = true; + warning(false, 'Render methods should be a pure function of props and state; ' + 'triggering nested component updates from render is not allowed. ' + 'If necessary, trigger nested updates in componentDidUpdate.\n\n' + 'Check the render method of %s.', getComponentName(ReactDebugCurrentFiber.current) || 'Unknown'); + } + } + + callback = callback === undefined ? null : callback; + { + warning(callback === null || typeof callback === 'function', 'render(...): Expected the last optional `callback` argument to be a ' + 'function. Instead received: %s.', callback); + } + + var expirationTime = void 0; + // Check if the top-level element is an async wrapper component. If so, + // treat updates to the root as async. This is a bit weird but lets us + // avoid a separate `renderAsync` API. + if (enableAsyncSubtreeAPI && element != null && element.type != null && element.type.prototype != null && element.type.prototype.unstable_isAsyncReactComponent === true) { + expirationTime = computeAsyncExpiration(); + } else { + expirationTime = computeExpirationForFiber(current); + } + + var update = { + expirationTime: expirationTime, + partialState: { element: element }, + callback: callback, + isReplace: false, + isForced: false, + nextCallback: null, + next: null + }; + insertUpdateIntoFiber(current, update); + scheduleWork(current, expirationTime); + } + + function findHostInstance(fiber) { + var hostFiber = findCurrentHostFiber(fiber); + if (hostFiber === null) { + return null; + } + return hostFiber.stateNode; + } + + return { + createContainer: function (containerInfo, hydrate) { + return createFiberRoot(containerInfo, hydrate); + }, + updateContainer: function (element, container, parentComponent, callback) { + // TODO: If this is a nested container, this won't be the root. + var current = container.current; + + { + if (ReactFiberInstrumentation_1.debugTool) { + if (current.alternate === null) { + ReactFiberInstrumentation_1.debugTool.onMountContainer(container); + } else if (element === null) { + ReactFiberInstrumentation_1.debugTool.onUnmountContainer(container); + } else { + ReactFiberInstrumentation_1.debugTool.onUpdateContainer(container); + } + } + } + + var context = getContextForSubtree(parentComponent); + if (container.context === null) { + container.context = context; + } else { + container.pendingContext = context; + } + + scheduleTopLevelUpdate(current, element, callback); + }, + + + batchedUpdates: batchedUpdates, + + unbatchedUpdates: unbatchedUpdates, + + deferredUpdates: deferredUpdates, + + flushSync: flushSync, + + getPublicRootInstance: function (container) { + var containerFiber = container.current; + if (!containerFiber.child) { + return null; + } + switch (containerFiber.child.tag) { + case HostComponent: + return getPublicInstance(containerFiber.child.stateNode); + default: + return containerFiber.child.stateNode; + } + }, + + + findHostInstance: findHostInstance, + + findHostInstanceWithNoPortals: function (fiber) { + var hostFiber = findCurrentHostFiberWithNoPortals(fiber); + if (hostFiber === null) { + return null; + } + return hostFiber.stateNode; + }, + injectIntoDevTools: function (devToolsConfig) { + var findFiberByHostInstance = devToolsConfig.findFiberByHostInstance; + + return injectInternals(_assign({}, devToolsConfig, { + findHostInstanceByFiber: function (fiber) { + return findHostInstance(fiber); + }, + findFiberByHostInstance: function (instance) { + if (!findFiberByHostInstance) { + // Might not be implemented by the renderer. + return null; + } + return findFiberByHostInstance(instance); + } + })); + } + }; +}; + +var ReactFiberReconciler$2 = Object.freeze({ + default: ReactFiberReconciler$1 +}); + +var ReactFiberReconciler$3 = ( ReactFiberReconciler$2 && ReactFiberReconciler$1 ) || ReactFiberReconciler$2; + +// TODO: bundle Flow types with the package. + + + +// TODO: decide on the top-level export form. +// This is hacky but makes it work with both Rollup and Jest. +var reactReconciler = ReactFiberReconciler$3['default'] ? ReactFiberReconciler$3['default'] : ReactFiberReconciler$3; + +function createPortal$1(children, containerInfo, +// TODO: figure out the API for cross-renderer implementation. +implementation) { + var key = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null; + + return { + // This tag allow us to uniquely identify this as a React Portal + $$typeof: REACT_PORTAL_TYPE, + key: key == null ? null : '' + key, + children: children, + containerInfo: containerInfo, + implementation: implementation + }; +} + +// TODO: this is special because it gets imported during build. + +var ReactVersion = '16.2.0'; + +// a requestAnimationFrame, storing the time for the start of the frame, then +// scheduling a postMessage which gets scheduled after paint. Within the +// postMessage handler do as much work as possible until time + frame rate. +// By separating the idle call into a separate event tick we ensure that +// layout, paint and other browser work is counted against the available time. +// The frame rate is dynamically adjusted. + +{ + if (ExecutionEnvironment.canUseDOM && typeof requestAnimationFrame !== 'function') { + warning(false, 'React depends on requestAnimationFrame. Make sure that you load a ' + 'polyfill in older browsers. http://fb.me/react-polyfills'); + } +} + +var hasNativePerformanceNow = typeof performance === 'object' && typeof performance.now === 'function'; + +var now = void 0; +if (hasNativePerformanceNow) { + now = function () { + return performance.now(); + }; +} else { + now = function () { + return Date.now(); + }; +} + +// TODO: There's no way to cancel, because Fiber doesn't atm. +var rIC = void 0; +var cIC = void 0; + +if (!ExecutionEnvironment.canUseDOM) { + rIC = function (frameCallback) { + return setTimeout(function () { + frameCallback({ + timeRemaining: function () { + return Infinity; + } + }); + }); + }; + cIC = function (timeoutID) { + clearTimeout(timeoutID); + }; +} else if (typeof requestIdleCallback !== 'function' || typeof cancelIdleCallback !== 'function') { + // Polyfill requestIdleCallback and cancelIdleCallback + + var scheduledRICCallback = null; + var isIdleScheduled = false; + var timeoutTime = -1; + + var isAnimationFrameScheduled = false; + + var frameDeadline = 0; + // We start out assuming that we run at 30fps but then the heuristic tracking + // will adjust this value to a faster fps if we get more frequent animation + // frames. + var previousFrameTime = 33; + var activeFrameTime = 33; + + var frameDeadlineObject; + if (hasNativePerformanceNow) { + frameDeadlineObject = { + didTimeout: false, + timeRemaining: function () { + // We assume that if we have a performance timer that the rAF callback + // gets a performance timer value. Not sure if this is always true. + var remaining = frameDeadline - performance.now(); + return remaining > 0 ? remaining : 0; + } + }; + } else { + frameDeadlineObject = { + didTimeout: false, + timeRemaining: function () { + // Fallback to Date.now() + var remaining = frameDeadline - Date.now(); + return remaining > 0 ? remaining : 0; + } + }; + } + + // We use the postMessage trick to defer idle work until after the repaint. + var messageKey = '__reactIdleCallback$' + Math.random().toString(36).slice(2); + var idleTick = function (event) { + if (event.source !== window || event.data !== messageKey) { + return; + } + + isIdleScheduled = false; + + var currentTime = now(); + if (frameDeadline - currentTime <= 0) { + // There's no time left in this idle period. Check if the callback has + // a timeout and whether it's been exceeded. + if (timeoutTime !== -1 && timeoutTime <= currentTime) { + // Exceeded the timeout. Invoke the callback even though there's no + // time left. + frameDeadlineObject.didTimeout = true; + } else { + // No timeout. + if (!isAnimationFrameScheduled) { + // Schedule another animation callback so we retry later. + isAnimationFrameScheduled = true; + requestAnimationFrame(animationTick); + } + // Exit without invoking the callback. + return; + } + } else { + // There's still time left in this idle period. + frameDeadlineObject.didTimeout = false; + } + + timeoutTime = -1; + var callback = scheduledRICCallback; + scheduledRICCallback = null; + if (callback !== null) { + callback(frameDeadlineObject); + } + }; + // Assumes that we have addEventListener in this environment. Might need + // something better for old IE. + window.addEventListener('message', idleTick, false); + + var animationTick = function (rafTime) { + isAnimationFrameScheduled = false; + var nextFrameTime = rafTime - frameDeadline + activeFrameTime; + if (nextFrameTime < activeFrameTime && previousFrameTime < activeFrameTime) { + if (nextFrameTime < 8) { + // Defensive coding. We don't support higher frame rates than 120hz. + // If we get lower than that, it is probably a bug. + nextFrameTime = 8; + } + // If one frame goes long, then the next one can be short to catch up. + // If two frames are short in a row, then that's an indication that we + // actually have a higher frame rate than what we're currently optimizing. + // We adjust our heuristic dynamically accordingly. For example, if we're + // running on 120hz display or 90hz VR display. + // Take the max of the two in case one of them was an anomaly due to + // missed frame deadlines. + activeFrameTime = nextFrameTime < previousFrameTime ? previousFrameTime : nextFrameTime; + } else { + previousFrameTime = nextFrameTime; + } + frameDeadline = rafTime + activeFrameTime; + if (!isIdleScheduled) { + isIdleScheduled = true; + window.postMessage(messageKey, '*'); + } + }; + + rIC = function (callback, options) { + // This assumes that we only schedule one callback at a time because that's + // how Fiber uses it. + scheduledRICCallback = callback; + if (options != null && typeof options.timeout === 'number') { + timeoutTime = now() + options.timeout; + } + if (!isAnimationFrameScheduled) { + // If rAF didn't already schedule one, we need to schedule a frame. + // TODO: If this rAF doesn't materialize because the browser throttles, we + // might want to still have setTimeout trigger rIC as a backup to ensure + // that we keep performing work. + isAnimationFrameScheduled = true; + requestAnimationFrame(animationTick); + } + return 0; + }; + + cIC = function () { + scheduledRICCallback = null; + isIdleScheduled = false; + timeoutTime = -1; + }; +} else { + rIC = window.requestIdleCallback; + cIC = window.cancelIdleCallback; +} + +/** + * Forked from fbjs/warning: + * https://github.com/facebook/fbjs/blob/e66ba20ad5be433eb54423f2b097d829324d9de6/packages/fbjs/src/__forks__/warning.js + * + * Only change is we use console.warn instead of console.error, + * and do nothing when 'console' is not supported. + * This really simplifies the code. + * --- + * Similar to invariant but only logs a warning if the condition is not met. + * This can be used to log issues in development environments in critical + * paths. Removing the logging code for production environments will keep the + * same logic and follow the same code paths. + */ + +var lowPriorityWarning = function () {}; + +{ + var printWarning = function (format) { + for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) { + args[_key - 1] = arguments[_key]; + } + + var argIndex = 0; + var message = 'Warning: ' + format.replace(/%s/g, function () { + return args[argIndex++]; + }); + if (typeof console !== 'undefined') { + console.warn(message); + } + try { + // --- Welcome to debugging React --- + // This error was thrown as a convenience so that you can use this stack + // to find the callsite that caused this warning to fire. + throw new Error(message); + } catch (x) {} + }; + + lowPriorityWarning = function (condition, format) { + if (format === undefined) { + throw new Error('`warning(condition, format, ...args)` requires a warning ' + 'message argument'); + } + if (!condition) { + for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) { + args[_key2 - 2] = arguments[_key2]; + } + + printWarning.apply(undefined, [format].concat(args)); + } + }; +} + +var lowPriorityWarning$1 = lowPriorityWarning; + +// isAttributeNameSafe() is currently duplicated in DOMMarkupOperations. +// TODO: Find a better place for this. +var VALID_ATTRIBUTE_NAME_REGEX = new RegExp('^[' + ATTRIBUTE_NAME_START_CHAR + '][' + ATTRIBUTE_NAME_CHAR + ']*$'); +var illegalAttributeNameCache = {}; +var validatedAttributeNameCache = {}; +function isAttributeNameSafe(attributeName) { + if (validatedAttributeNameCache.hasOwnProperty(attributeName)) { + return true; + } + if (illegalAttributeNameCache.hasOwnProperty(attributeName)) { + return false; + } + if (VALID_ATTRIBUTE_NAME_REGEX.test(attributeName)) { + validatedAttributeNameCache[attributeName] = true; + return true; + } + illegalAttributeNameCache[attributeName] = true; + { + warning(false, 'Invalid attribute name: `%s`', attributeName); + } + return false; +} + +// shouldIgnoreValue() is currently duplicated in DOMMarkupOperations. +// TODO: Find a better place for this. +function shouldIgnoreValue(propertyInfo, value) { + return value == null || propertyInfo.hasBooleanValue && !value || propertyInfo.hasNumericValue && isNaN(value) || propertyInfo.hasPositiveNumericValue && value < 1 || propertyInfo.hasOverloadedBooleanValue && value === false; +} + +/** + * Operations for dealing with DOM properties. + */ + + + + + +/** + * Get the value for a property on a node. Only used in DEV for SSR validation. + * The "expected" argument is used as a hint of what the expected value is. + * Some properties have multiple equivalent values. + */ +function getValueForProperty(node, name, expected) { + { + var propertyInfo = getPropertyInfo(name); + if (propertyInfo) { + var mutationMethod = propertyInfo.mutationMethod; + if (mutationMethod || propertyInfo.mustUseProperty) { + return node[propertyInfo.propertyName]; + } else { + var attributeName = propertyInfo.attributeName; + + var stringValue = null; + + if (propertyInfo.hasOverloadedBooleanValue) { + if (node.hasAttribute(attributeName)) { + var value = node.getAttribute(attributeName); + if (value === '') { + return true; + } + if (shouldIgnoreValue(propertyInfo, expected)) { + return value; + } + if (value === '' + expected) { + return expected; + } + return value; + } + } else if (node.hasAttribute(attributeName)) { + if (shouldIgnoreValue(propertyInfo, expected)) { + // We had an attribute but shouldn't have had one, so read it + // for the error message. + return node.getAttribute(attributeName); + } + if (propertyInfo.hasBooleanValue) { + // If this was a boolean, it doesn't matter what the value is + // the fact that we have it is the same as the expected. + return expected; + } + // Even if this property uses a namespace we use getAttribute + // because we assume its namespaced name is the same as our config. + // To use getAttributeNS we need the local name which we don't have + // in our config atm. + stringValue = node.getAttribute(attributeName); + } + + if (shouldIgnoreValue(propertyInfo, expected)) { + return stringValue === null ? expected : stringValue; + } else if (stringValue === '' + expected) { + return expected; + } else { + return stringValue; + } + } + } + } +} + +/** + * Get the value for a attribute on a node. Only used in DEV for SSR validation. + * The third argument is used as a hint of what the expected value is. Some + * attributes have multiple equivalent values. + */ +function getValueForAttribute(node, name, expected) { + { + if (!isAttributeNameSafe(name)) { + return; + } + if (!node.hasAttribute(name)) { + return expected === undefined ? undefined : null; + } + var value = node.getAttribute(name); + if (value === '' + expected) { + return expected; + } + return value; + } +} + +/** + * Sets the value for a property on a node. + * + * @param {DOMElement} node + * @param {string} name + * @param {*} value + */ +function setValueForProperty(node, name, value) { + var propertyInfo = getPropertyInfo(name); + + if (propertyInfo && shouldSetAttribute(name, value)) { + var mutationMethod = propertyInfo.mutationMethod; + if (mutationMethod) { + mutationMethod(node, value); + } else if (shouldIgnoreValue(propertyInfo, value)) { + deleteValueForProperty(node, name); + return; + } else if (propertyInfo.mustUseProperty) { + // Contrary to `setAttribute`, object properties are properly + // `toString`ed by IE8/9. + node[propertyInfo.propertyName] = value; + } else { + var attributeName = propertyInfo.attributeName; + var namespace = propertyInfo.attributeNamespace; + // `setAttribute` with objects becomes only `[object]` in IE8/9, + // ('' + value) makes it output the correct toString()-value. + if (namespace) { + node.setAttributeNS(namespace, attributeName, '' + value); + } else if (propertyInfo.hasBooleanValue || propertyInfo.hasOverloadedBooleanValue && value === true) { + node.setAttribute(attributeName, ''); + } else { + node.setAttribute(attributeName, '' + value); + } + } + } else { + setValueForAttribute(node, name, shouldSetAttribute(name, value) ? value : null); + return; + } + + { + + } +} + +function setValueForAttribute(node, name, value) { + if (!isAttributeNameSafe(name)) { + return; + } + if (value == null) { + node.removeAttribute(name); + } else { + node.setAttribute(name, '' + value); + } + + { + + } +} + +/** + * Deletes an attributes from a node. + * + * @param {DOMElement} node + * @param {string} name + */ +function deleteValueForAttribute(node, name) { + node.removeAttribute(name); +} + +/** + * Deletes the value for a property on a node. + * + * @param {DOMElement} node + * @param {string} name + */ +function deleteValueForProperty(node, name) { + var propertyInfo = getPropertyInfo(name); + if (propertyInfo) { + var mutationMethod = propertyInfo.mutationMethod; + if (mutationMethod) { + mutationMethod(node, undefined); + } else if (propertyInfo.mustUseProperty) { + var propName = propertyInfo.propertyName; + if (propertyInfo.hasBooleanValue) { + node[propName] = false; + } else { + node[propName] = ''; + } + } else { + node.removeAttribute(propertyInfo.attributeName); + } + } else { + node.removeAttribute(name); + } +} + +var ReactControlledValuePropTypes = { + checkPropTypes: null +}; + +{ + var hasReadOnlyValue = { + button: true, + checkbox: true, + image: true, + hidden: true, + radio: true, + reset: true, + submit: true + }; + + var propTypes = { + value: function (props, propName, componentName) { + if (!props[propName] || hasReadOnlyValue[props.type] || props.onChange || props.readOnly || props.disabled) { + return null; + } + return new Error('You provided a `value` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultValue`. Otherwise, ' + 'set either `onChange` or `readOnly`.'); + }, + checked: function (props, propName, componentName) { + if (!props[propName] || props.onChange || props.readOnly || props.disabled) { + return null; + } + return new Error('You provided a `checked` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultChecked`. Otherwise, ' + 'set either `onChange` or `readOnly`.'); + } + }; + + /** + * Provide a linked `value` attribute for controlled forms. You should not use + * this outside of the ReactDOM controlled form components. + */ + ReactControlledValuePropTypes.checkPropTypes = function (tagName, props, getStack) { + checkPropTypes(propTypes, props, 'prop', tagName, getStack); + }; +} + +// TODO: direct imports like some-package/src/* are bad. Fix me. +var getCurrentFiberOwnerName$2 = ReactDebugCurrentFiber.getCurrentFiberOwnerName; +var getCurrentFiberStackAddendum$3 = ReactDebugCurrentFiber.getCurrentFiberStackAddendum; + +var didWarnValueDefaultValue = false; +var didWarnCheckedDefaultChecked = false; +var didWarnControlledToUncontrolled = false; +var didWarnUncontrolledToControlled = false; + +function isControlled(props) { + var usesChecked = props.type === 'checkbox' || props.type === 'radio'; + return usesChecked ? props.checked != null : props.value != null; +} + +/** + * Implements an host component that allows setting these optional + * props: `checked`, `value`, `defaultChecked`, and `defaultValue`. + * + * If `checked` or `value` are not supplied (or null/undefined), user actions + * that affect the checked state or value will trigger updates to the element. + * + * If they are supplied (and not null/undefined), the rendered element will not + * trigger updates to the element. Instead, the props must change in order for + * the rendered element to be updated. + * + * The rendered element will be initialized as unchecked (or `defaultChecked`) + * with an empty value (or `defaultValue`). + * + * See http://www.w3.org/TR/2012/WD-html5-20121025/the-input-element.html + */ + +function getHostProps(element, props) { + var node = element; + var value = props.value; + var checked = props.checked; + + var hostProps = _assign({ + // Make sure we set .type before any other properties (setting .value + // before .type means .value is lost in IE11 and below) + type: undefined, + // Make sure we set .step before .value (setting .value before .step + // means .value is rounded on mount, based upon step precision) + step: undefined, + // Make sure we set .min & .max before .value (to ensure proper order + // in corner cases such as min or max deriving from value, e.g. Issue #7170) + min: undefined, + max: undefined + }, props, { + defaultChecked: undefined, + defaultValue: undefined, + value: value != null ? value : node._wrapperState.initialValue, + checked: checked != null ? checked : node._wrapperState.initialChecked + }); + + return hostProps; +} + +function initWrapperState(element, props) { + { + ReactControlledValuePropTypes.checkPropTypes('input', props, getCurrentFiberStackAddendum$3); + + if (props.checked !== undefined && props.defaultChecked !== undefined && !didWarnCheckedDefaultChecked) { + warning(false, '%s contains an input of type %s with both checked and defaultChecked props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the checked prop, or the defaultChecked prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', getCurrentFiberOwnerName$2() || 'A component', props.type); + didWarnCheckedDefaultChecked = true; + } + if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue) { + warning(false, '%s contains an input of type %s with both value and defaultValue props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', getCurrentFiberOwnerName$2() || 'A component', props.type); + didWarnValueDefaultValue = true; + } + } + + var defaultValue = props.defaultValue; + var node = element; + node._wrapperState = { + initialChecked: props.checked != null ? props.checked : props.defaultChecked, + initialValue: props.value != null ? props.value : defaultValue, + controlled: isControlled(props) + }; +} + +function updateChecked(element, props) { + var node = element; + var checked = props.checked; + if (checked != null) { + setValueForProperty(node, 'checked', checked); + } +} + +function updateWrapper(element, props) { + var node = element; + { + var controlled = isControlled(props); + + if (!node._wrapperState.controlled && controlled && !didWarnUncontrolledToControlled) { + warning(false, 'A component is changing an uncontrolled input of type %s to be controlled. ' + 'Input elements should not switch from uncontrolled to controlled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components%s', props.type, getCurrentFiberStackAddendum$3()); + didWarnUncontrolledToControlled = true; + } + if (node._wrapperState.controlled && !controlled && !didWarnControlledToUncontrolled) { + warning(false, 'A component is changing a controlled input of type %s to be uncontrolled. ' + 'Input elements should not switch from controlled to uncontrolled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components%s', props.type, getCurrentFiberStackAddendum$3()); + didWarnControlledToUncontrolled = true; + } + } + + updateChecked(element, props); + + var value = props.value; + if (value != null) { + if (value === 0 && node.value === '') { + node.value = '0'; + // Note: IE9 reports a number inputs as 'text', so check props instead. + } else if (props.type === 'number') { + // Simulate `input.valueAsNumber`. IE9 does not support it + var valueAsNumber = parseFloat(node.value) || 0; + + if ( + // eslint-disable-next-line + value != valueAsNumber || + // eslint-disable-next-line + value == valueAsNumber && node.value != value) { + // Cast `value` to a string to ensure the value is set correctly. While + // browsers typically do this as necessary, jsdom doesn't. + node.value = '' + value; + } + } else if (node.value !== '' + value) { + // Cast `value` to a string to ensure the value is set correctly. While + // browsers typically do this as necessary, jsdom doesn't. + node.value = '' + value; + } + } else { + if (props.value == null && props.defaultValue != null) { + // In Chrome, assigning defaultValue to certain input types triggers input validation. + // For number inputs, the display value loses trailing decimal points. For email inputs, + // Chrome raises "The specified value is not a valid email address". + // + // Here we check to see if the defaultValue has actually changed, avoiding these problems + // when the user is inputting text + // + // https://github.com/facebook/react/issues/7253 + if (node.defaultValue !== '' + props.defaultValue) { + node.defaultValue = '' + props.defaultValue; + } + } + if (props.checked == null && props.defaultChecked != null) { + node.defaultChecked = !!props.defaultChecked; + } + } +} + +function postMountWrapper(element, props) { + var node = element; + + // Detach value from defaultValue. We won't do anything if we're working on + // submit or reset inputs as those values & defaultValues are linked. They + // are not resetable nodes so this operation doesn't matter and actually + // removes browser-default values (eg "Submit Query") when no value is + // provided. + + switch (props.type) { + case 'submit': + case 'reset': + break; + case 'color': + case 'date': + case 'datetime': + case 'datetime-local': + case 'month': + case 'time': + case 'week': + // This fixes the no-show issue on iOS Safari and Android Chrome: + // https://github.com/facebook/react/issues/7233 + node.value = ''; + node.value = node.defaultValue; + break; + default: + node.value = node.value; + break; + } + + // Normally, we'd just do `node.checked = node.checked` upon initial mount, less this bug + // this is needed to work around a chrome bug where setting defaultChecked + // will sometimes influence the value of checked (even after detachment). + // Reference: https://bugs.chromium.org/p/chromium/issues/detail?id=608416 + // We need to temporarily unset name to avoid disrupting radio button groups. + var name = node.name; + if (name !== '') { + node.name = ''; + } + node.defaultChecked = !node.defaultChecked; + node.defaultChecked = !node.defaultChecked; + if (name !== '') { + node.name = name; + } +} + +function restoreControlledState$1(element, props) { + var node = element; + updateWrapper(node, props); + updateNamedCousins(node, props); +} + +function updateNamedCousins(rootNode, props) { + var name = props.name; + if (props.type === 'radio' && name != null) { + var queryRoot = rootNode; + + while (queryRoot.parentNode) { + queryRoot = queryRoot.parentNode; + } + + // If `rootNode.form` was non-null, then we could try `form.elements`, + // but that sometimes behaves strangely in IE8. We could also try using + // `form.getElementsByName`, but that will only return direct children + // and won't include inputs that use the HTML5 `form=` attribute. Since + // the input might not even be in a form. It might not even be in the + // document. Let's just use the local `querySelectorAll` to ensure we don't + // miss anything. + var group = queryRoot.querySelectorAll('input[name=' + JSON.stringify('' + name) + '][type="radio"]'); + + for (var i = 0; i < group.length; i++) { + var otherNode = group[i]; + if (otherNode === rootNode || otherNode.form !== rootNode.form) { + continue; + } + // This will throw if radio buttons rendered by different copies of React + // and the same name are rendered into the same form (same as #1939). + // That's probably okay; we don't support it just as we don't support + // mixing React radio buttons with non-React ones. + var otherProps = getFiberCurrentPropsFromNode$1(otherNode); + !otherProps ? invariant(false, 'ReactDOMInput: Mixing React and non-React radio inputs with the same `name` is not supported.') : void 0; + + // We need update the tracked value on the named cousin since the value + // was changed but the input saw no event or value set + updateValueIfChanged(otherNode); + + // If this is a controlled radio button group, forcing the input that + // was previously checked to update will cause it to be come re-checked + // as appropriate. + updateWrapper(otherNode, otherProps); + } + } +} + +function flattenChildren(children) { + var content = ''; + + // Flatten children and warn if they aren't strings or numbers; + // invalid types are ignored. + // We can silently skip them because invalid DOM nesting warning + // catches these cases in Fiber. + React.Children.forEach(children, function (child) { + if (child == null) { + return; + } + if (typeof child === 'string' || typeof child === 'number') { + content += child; + } + }); + + return content; +} + +/** + * Implements an
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By clicking 'Upload', you affirm that you have the rights to publish this content to the LBRY network, and that you understand the properties of publishing it to a decentralized, user-controlled network. Read more.

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diff --git a/views/partials/publishForm-Thumbnail.handlebars b/views/partials/publishForm-Thumbnail.handlebars deleted file mode 100644 index 3d582159..00000000 --- a/views/partials/publishForm-Thumbnail.handlebars +++ /dev/null @@ -1,56 +0,0 @@ - - - \ No newline at end of file diff --git a/views/partials/publishForm-Url.handlebars b/views/partials/publishForm-Url.handlebars deleted file mode 100644 index d5200ae4..00000000 --- a/views/partials/publishForm-Url.handlebars +++ /dev/null @@ -1,16 +0,0 @@ -
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- spee.ch / - {{user.channelName}}:{{user.shortChannelId}} - xyzThis will be a random id - / - - -
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\ No newline at end of file diff --git a/views/popular.handlebars b/views/popular.handlebars index 1c8626fc..7f3072c2 100644 --- a/views/popular.handlebars +++ b/views/popular.handlebars @@ -1,3 +1,4 @@ +{{> navBar}}
{{#each trendingAssets}} @@ -20,4 +21,4 @@ percentPosition: true }); }); - \ No newline at end of file + diff --git a/views/requestError.handlebars b/views/requestError.handlebars index 83e56144..45048624 100644 --- a/views/requestError.handlebars +++ b/views/requestError.handlebars @@ -1,3 +1,4 @@ +{{> navBar}}

Error

Unfortnately, Spee.ch encountered an error. You can help us out, by reporting the below error message in the #speech channel on LBRY Discord!

diff --git a/views/show.handlebars b/views/show.handlebars index 7282a522..ac8066c8 100644 --- a/views/show.handlebars +++ b/views/show.handlebars @@ -1,3 +1,4 @@ +{{> navBar}}
@@ -14,4 +15,4 @@ {{> assetInfo}}
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\ No newline at end of file +
diff --git a/webpack.config.js b/webpack.config.js new file mode 100644 index 00000000..ae082fa7 --- /dev/null +++ b/webpack.config.js @@ -0,0 +1,32 @@ +const Path = require('path'); + +const REACT_ROOT = Path.resolve(__dirname, 'react/'); + +module.exports = { + entry : ['whatwg-fetch', './react/app.js'], + output: { + path : Path.join(__dirname, '/public/bundle/'), + filename: 'bundle.js', + }, + watch : true, + module: { + loaders: [ + { + test : /.jsx?$/, + loader : 'babel-loader', + exclude: /node_modules/, + query : { + presets: ['es2015', 'react', 'stage-2'], + }, + }, + ], + }, + resolve: { + modules: [ + REACT_ROOT, + 'node_modules', + __dirname, + ], + extensions: ['.js', '.jsx', '.scss'], + }, +};