399 lines
14 KiB
JavaScript
399 lines
14 KiB
JavaScript
"use strict"; /* global document, navigator, send, window */
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initializePlayground();
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// pre-fill example one if search parameter exists
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if (window.location.href.search && window.location.href.split("?url=")[1]) {
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const searchParameter = window.location.href.split("?url=")[1];
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fetchMetadata(1, searchParameter); // eslint-disable-line padding-line-between-statements
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}
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document.querySelector("body").addEventListener("click", event => {
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if (event.target.dataset.action) {
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event.preventDefault();
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document.querySelector(".playground").classList.add("waiting");
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handleExamples(event.target);
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}
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if (
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event.target.classList &&
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event.target.classList[0] === "playground-content__meme__canvas__thumbnail"
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) {
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for (const thumbnail of document.querySelectorAll(".playground-content__meme__canvas__thumbnail"))
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thumbnail.classList.remove("selected");
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event.target.classList.add("selected");
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updateCanvas(event.target);
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}
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});
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document.getElementById("fetch-claim-uri").addEventListener("keyup", event => {
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const key = event.keyCode ?
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event.keyCode :
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event.which;
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switch(true) {
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case document.querySelector("[data-example='1']").classList.contains("active"):
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if (
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key === 13 &&
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document.getElementById("fetch-claim-uri").value.length > 0
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) fetchMetadata(1, document.getElementById("fetch-claim-uri").value);
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break;
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case document.querySelector("[data-example='3']").classList.contains("active"):
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if (
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key === 13 &&
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document.getElementById("fetch-claim-uri").value.length > 0
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) fetchMetadata(3, document.getElementById("fetch-claim-uri").value);
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break;
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default:
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break;
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}
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});
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document.querySelector("body").addEventListener("keyup", event => {
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if (
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event.target.id === "meme-top-line" ||
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event.target.id === "meme-bottom-line"
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) updateCanvas();
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});
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// H E L P E R S
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function clearCanvas(canvas) {
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const ctx = canvas.getContext("2d");
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ctx.save();
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ctx.globalCompositeOperation = "copy";
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ctx.strokeStyle = "transparent";
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ctx.beginPath();
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ctx.lineTo(0, 0);
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ctx.stroke();
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ctx.restore();
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}
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function detectLanguageAndUpdate() { // eslint-disable-line no-unused-vars
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const compare = (array1, array2) => array2.filter(value => array2.indexOf(value)); // compare two arrays and get match(es)
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const memeLocaleObject = document.getElementById("meme-language").children;
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const memeLocales = [];
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const userLocales = [];
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for (const language of navigator.languages)
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userLocales.push(language);
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for (const key in memeLocaleObject) {
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if (memeLocaleObject[key] && memeLocaleObject[key].value)
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memeLocales.push(memeLocaleObject[key].value);
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}
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if (
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memeLocales.length &&
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userLocales.length &&
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compare(memeLocales, userLocales).length
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) document.querySelector(`option[value="${compare(memeLocales, userLocales)[0]}"]`).setAttribute("selected", true);
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}
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function debounce(func, wait, immediate) {
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let timeout;
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return function() {
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const context = this;
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const args = arguments;
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const later = () => {
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timeout = null;
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if (!immediate) func.apply(context, args);
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};
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const callNow = immediate && !timeout;
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clearTimeout(timeout);
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timeout = setTimeout(later, wait);
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if (callNow) func.apply(context, args);
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};
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}
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function initializePlayground() {
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document.querySelector(".playground").classList.add("waiting");
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document.querySelector("#fetch-claim-uri").value = "";
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document.querySelector("#fetch-claim-uri").focus();
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document.querySelector(".playground-navigation__example:nth-child(1)").classList.add("active");
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send(JSON.stringify({
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message: "landed on playground"
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}));
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setTimeout(() => {
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document.querySelector(".playground-navigation__example:nth-child(1)").click();
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}, 300);
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}
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function fetchMetadata(exampleNumber, data) {
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if (!exampleNumber) return;
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switch(exampleNumber) {
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case 1:
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send(JSON.stringify({
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claim: data,
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message: "fetch metadata",
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method: "resolve",
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example: exampleNumber
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}));
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document.getElementById("fetch-claim-uri").value = data;
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document.getElementById("playground-results").innerHTML = playgroundResponseForExample1(data);
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document.getElementById("playground-loader").style.display = "none";
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break;
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case 2:
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send(JSON.stringify({
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data: data,
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message: "fetch metadata",
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method: "publish",
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example: exampleNumber
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}));
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document.getElementById("playground-results").innerHTML = playgroundResponseForExample2(getMemeInfo());
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document.getElementById("playground-loader").style.display = "none";
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break;
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case 3:
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send(JSON.stringify({
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claim: data,
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message: "fetch metadata",
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method: "claim_tip",
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example: exampleNumber
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}));
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document.getElementById("fetch-claim-uri").value = data;
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document.getElementById("playground-results").innerHTML = playgroundResponseForExample3(data);
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document.getElementById("playground-loader").style.display = "none";
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break;
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default:
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break;
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}
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}
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function getMemeInfo() { // TODO: Error handling
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return {
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description: document.getElementById("meme-description").value,
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file_path: document.getElementById("meme-canvas").toDataURL("image/jpeg", 0.6),
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language: document.getElementById("meme-language").value,
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license: document.getElementById("meme-license").value,
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name: document.getElementById("meme-title").value,
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nsfw: document.getElementById("meme-nsfw-flag").checked,
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title: document.getElementById("meme-title").value
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};
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}
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function playgroundResponseForExample1(source) {
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return `
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<pre><code class="language-bash">
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<span class="token comment"># With the LBRY app/daemon running locally, you can use this in your Terminal</span>
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curl --header <span class="token string">"Content-Type: application/json"</span> --data <span class="token string">'{ "method": "resolve", "params": { "uri": "${source}" }}'</span> <span class="token url">http://localhost:5279 </span>
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</code></pre>
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<div class="loader" id="temp-loader"></div>
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<div id="example1-result"></div>
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`;
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}
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function playgroundResponseForExample2(source) {
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return `
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<pre><code class="language-bash">
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<span class="token comment"># With the LBRY app/daemon running locally, you can use this in your Terminal</span>
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curl --header <span class="token string">"Content-Type: application/json"</span> --data <span class="token string">'{ "method": "publish", "params": { "name": "${source.name}", "file_path": "ABSOLUTE_PATH_TO_MEDIA_ON_YOUR_COMPUTER", "bid": "0.001", "metadata": { "description": "${source.description}", "title": "${source.title}", "language": "${source.language}", "license": "${source.license}", "nsfw": ${source.nsfw} }}}'</span> <span class="token url">http://localhost:5279 </span>
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</code></pre>
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<div class="loader" id="temp-loader"></div>
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<div id="example2-result"></div>
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`;
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}
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function playgroundResponseForExample3(source) {
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document.querySelector("[data-action='execute claim']").disabled = true;
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return `
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<pre><code class="language-bash">
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<span class="token comment"># With the LBRY app/daemon running locally, you can use this in your Terminal</span>
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curl --header <span class="token string">"Content-Type: application/json"</span> --data <span class="token string">'{ "method": "claim_tip", "params": { "amount": "0.001", "claim_id": "${source}" }}'</span> <span class="token url">http://localhost:5279 </span>
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</code></pre>
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<div class="loader" id="temp-loader"></div>
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<div id="example3-result"></div>
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`;
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}
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const handleExamples = debounce(event => {
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let exampleNumber;
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const data = event.dataset;
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if (!parseInt(document.querySelector(".playground-navigation__example.active").dataset.example)) return;
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exampleNumber = parseInt(document.querySelector(".playground-navigation__example.active").dataset.example);
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switch(data.action) {
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case "choose claim":
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fetchMetadata(exampleNumber, data.claimId);
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if (document.querySelector(".playground-navigation__example:nth-child(3)").classList.contains("active"))
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document.getElementById("fetch-claim-uri").value = event.dataset.name + "#" + event.dataset.claimId;
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break;
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case "execute claim":
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if (!document.getElementById("fetch-claim-uri").value.length > 0) return;
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fetchMetadata(exampleNumber, document.getElementById("fetch-claim-uri").value);
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break;
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case "playground, example 1":
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if (document.getElementById("playground-loader").classList.contains("playground-content__meme")) {
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document.getElementById("playground-loader").classList.remove("playground-content__meme");
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document.getElementById("playground-loader").classList.add("playground-content__trends");
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}
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document.getElementById("fetch-claim-uri").value = ""; // reset URL bar
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document.querySelector("#playground-url button").textContent = "Resolve";
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if (document.getElementById("playground-url").style.display === "none")
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document.getElementById("playground-url").removeAttribute("style");
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for (const example of document.querySelectorAll(".playground-navigation__example"))
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example.classList.remove("active");
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document.querySelector(".playground-navigation__example:nth-child(1)").classList.add("active");
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document.getElementById("playground-loader").innerHTML = "";
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document.getElementById("playground-results").innerHTML = "";
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document.getElementById("playground-loader").removeAttribute("style");
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document.getElementById("playground-results").removeAttribute("style");
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send(JSON.stringify({
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message: `request for ${data.action}`
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}));
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break;
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case "playground, example 2":
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if (document.getElementById("playground-loader").classList.contains("playground-content__trends")) {
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document.getElementById("playground-loader").classList.remove("playground-content__trends");
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document.getElementById("playground-loader").classList.add("playground-content__meme");
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}
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document.getElementById("fetch-claim-uri").value = ""; // reset URL bar
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document.getElementById("playground-url").style.display = "none";
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for (const example of document.querySelectorAll(".playground-navigation__example"))
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example.classList.remove("active");
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document.querySelector(".playground-navigation__example:nth-child(2)").classList.add("active");
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document.getElementById("playground-loader").innerHTML = "";
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document.getElementById("playground-results").innerHTML = "";
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document.getElementById("playground-loader").removeAttribute("style");
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document.getElementById("playground-results").removeAttribute("style");
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send(JSON.stringify({
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message: `request for ${data.action}`
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}));
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break;
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case "playground, example 3":
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if (document.getElementById("playground-loader").classList.contains("playground-content__meme")) {
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document.getElementById("playground-loader").classList.remove("playground-content__meme");
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document.getElementById("playground-loader").classList.add("playground-content__trends");
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}
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document.getElementById("fetch-claim-uri").value = ""; // reset URL bar
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document.querySelector("#playground-url button").textContent = "Tip";
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if (document.getElementById("playground-url").style.display === "none")
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document.getElementById("playground-url").removeAttribute("style");
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for (const example of document.querySelectorAll(".playground-navigation__example"))
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example.classList.remove("active");
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document.querySelector(".playground-navigation__example:nth-child(3)").classList.add("active");
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document.getElementById("playground-loader").innerHTML = "";
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document.getElementById("playground-results").innerHTML = "";
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document.getElementById("playground-loader").removeAttribute("style");
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document.getElementById("playground-results").removeAttribute("style");
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send(JSON.stringify({
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message: `request for ${data.action}`
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}));
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break;
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case "upload image":
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fetchMetadata(exampleNumber, getMemeInfo());
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break;
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default:
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break;
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}
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}, 10);
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function initCanvas() { // eslint-disable-line no-unused-vars
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const canvas = document.getElementById("meme-canvas");
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const canvasHeight = 600;
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const canvasWidth = 800;
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const ctx = canvas.getContext("2d");
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const img = document.getElementById("base-image");
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clearCanvas(canvas);
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ctx.drawImage(img, 0, 0, canvasWidth, canvasHeight, 0, 0, canvasWidth, canvasHeight);
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ctx.fillStyle = "white";
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ctx.font = "bold 48px 'Inter UI', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'";
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// ctx.font = "bold 48px Arial";
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ctx.lineJoin = "round";
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ctx.lineWidth = 4;
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ctx.strokeStyle = "black";
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ctx.textAlign = "center";
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ctx.textBaseline = "top";
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positionCanvasText(ctx, canvasHeight, canvasWidth);
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}
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function positionCanvasText(canvas, height, width) {
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canvas.strokeText(document.getElementById("meme-top-line").value.toUpperCase(), width / 2, 40);
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canvas.fillText(document.getElementById("meme-top-line").value.toUpperCase(), width / 2, 40);
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canvas.strokeText(document.getElementById("meme-bottom-line").value.toUpperCase(), width / 2, (height - 80));
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canvas.fillText(document.getElementById("meme-bottom-line").value.toUpperCase(), width / 2, (height - 80));
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}
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function updateCanvas(imageSource) {
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const canvas = document.getElementById("meme-canvas");
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const canvasHeight = 600;
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const canvasWidth = 800;
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const ctx = canvas.getContext("2d");
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const img = document.getElementById("base-image");
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clearCanvas(canvas);
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if (imageSource) {
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ctx.drawImage(imageSource, 0, 0, canvasWidth, canvasHeight);
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img.src = imageSource.src;
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} else {
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ctx.drawImage(img, 0, 0, canvasWidth, canvasHeight);
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}
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positionCanvasText(ctx, canvasHeight, canvasWidth);
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}
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