spee.ch/public/assets/js/publishFileFunctions.js
2017-12-12 21:55:07 -08:00

233 lines
11 KiB
JavaScript

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 = `<p>loading preview...</p>`
}
previewReader.readAsDataURL(selectedFile);
previewReader.onloadend = function () {
assetPreview.innerHTML = '<img id="asset-preview" src="' + previewReader.result + '" alt="image preview"/>';
};
// clear & hide the thumbnail selection input
thumbnailInput.value = '';
thumbnailInputTool.hidden = true;
} else {
assetPreview.innerHTML = `<img id="asset-preview" src="/assets/img/video_thumb_default.png"/>`;
// 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');
return {
name: nameInput.value.trim(),
channelName: this.returnNullOrChannel(),
title: titleInput.value.trim(),
description: descriptionInput.value.trim(),
license: licenseInput.value.trim(),
nsfw: nsfwInput.checked,
type: stagedFiles[0].type,
thumbnail: thumbnailInput.value.trim(),
}
},
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);
}
} else {
console.log('xhr.readyState', xhr.readyState, 'xhr.status', xhr.status);
}
};
// 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; // note: necessary ?
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('<p>File is loading to server</p>');
this.updateUploadPercent('<p class="blue">' + percentage + '% </p>');
},
showFilePublishUpdate: function (msg) {
this.updatePublishStatus('<p>' + msg + '</p>');
this.updateUploadPercent('<p>Curious what magic is happening here? <a class="link--primary" target="blank" href="https://lbry.io/faq/what-is-lbry">Learn more.</a></p>');
},
showFilePublishFailure: function (msg){
this.updatePublishStatus('<p>Something went wrong...</p><p><strong>' + msg + '</strong></p><p>For help, post the above error text in the #speech channel on the <a class="link--primary" href="https://discord.gg/YjYbwhS" target="_blank">lbry discord</a>');
this.hidePublishProgressBar();
this.hideUploadPercent();
},
showFilePublishComplete: function (msg) {
console.log('Publish complete!');
const showUrl = msg.lbryTx.claim_id + "/" + msg.name;
// update status
this.updatePublishStatus('<p>Your publish is complete! You are being redirected to it now.</p>');
this.updateUploadPercent('<p><a class="link--primary" target="_blank" href="' + showUrl + '">If you do not get redirected, click here.</a></p>')
// 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;
},
}