diff options
Diffstat (limited to 'juick-www/src/main/assets/embed.js')
| -rw-r--r-- | juick-www/src/main/assets/embed.js | 336 |
1 files changed, 0 insertions, 336 deletions
diff --git a/juick-www/src/main/assets/embed.js b/juick-www/src/main/assets/embed.js deleted file mode 100644 index 25c37142..00000000 --- a/juick-www/src/main/assets/embed.js +++ /dev/null @@ -1,336 +0,0 @@ - -function insertAfter(newNode, referenceNode) { - referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling); -} - -function setContent(containerNode, ...newNodes) { - removeAllFrom(containerNode); - newNodes.forEach(n => containerNode.appendChild(n)); - return containerNode; -} - -function removeAllFrom(fromNode) { - for (let c; c = fromNode.lastChild; ) { fromNode.removeChild(c); } -} - -function htmlEscape(html) { - let textarea = document.createElement('textarea'); - textarea.textContent = html; - return textarea.innerHTML; -} - -// rules :: [{pr: number, re: RegExp, with: string}] -// rules :: [{pr: number, re: RegExp, with: Function}] -// rules :: [{pr: number, re: RegExp, brackets: true, with: [string, string]}] -// rules :: [{pr: number, re: RegExp, brackets: true, with: [string, string, Function]}] -function formatText(txt, rules) { - let idCounter = 0; - function nextId() { return idCounter++; } - function ft(txt, rules) { - let matches = rules.map(r => { r.re.lastIndex = 0; return [r, r.re.exec(txt)]; }) - .filter(([,m]) => m !== null) - .sort(([r1,m1],[r2,m2]) => (r1.pr - r2.pr) || (m1.index - m2.index)); - if (matches && matches.length > 0) { - let [rule, match] = matches[0]; - let subsequentRules = rules.filter(r => r.pr >= rule.pr); - let idStr = `<>(${nextId()})<>`; - let outerStr = txt.substring(0, match.index) + idStr + txt.substring(rule.re.lastIndex); - let innerStr = (rule.brackets) - ? (() => { let [l ,r ,f] = rule.with; return l + ft((f ? f(match[1]) : match[1]), subsequentRules) + r; })() - : match[0].replace(rule.re, rule.with); - return ft(outerStr, subsequentRules).replace(idStr, innerStr); - } - return txt; - } - return ft(htmlEscape(txt), rules); // idStr above relies on the fact the text is escaped -} - -function fixWwwLink(url) { - return url.replace(/^(?!([a-z]+:)?\/\/)/i, '//'); -} - -function makeNewNode(embedType, aNode, reResult) { - const withClasses = el => { - if (embedType.className) { - el.classList.add(...embedType.className.split(' ')); - } - return el; - }; - return embedType.makeNode(aNode, reResult, withClasses(document.createElement('div'))); -} - -function makeIframe(src, w, h, scrolling='no') { - let iframe = document.createElement('iframe'); - iframe.style.width = w; - iframe.style.height = h; - iframe.frameBorder = 0; - iframe.scrolling = scrolling; - iframe.setAttribute('allowFullScreen', ''); - iframe.src = src; - iframe.innerHTML = 'Cannot show iframes.'; - return iframe; -} - -function makeResizableToRatio(element, ratio) { - element.dataset['ratio'] = ratio; - makeResizable(element, w => w * element.dataset['ratio']); -} - -// calcHeight :: Number -> Number -- calculate element height for a given width -function makeResizable(element, calcHeight) { - const setHeight = el => { - if (document.body.contains(el) && (el.offsetWidth > 0)) { - el.style.height = (calcHeight(el.offsetWidth)).toFixed(2) + 'px'; - } - }; - window.addEventListener('resize', () => setHeight(element)); - setHeight(element); -} - -function extractDomain(url) { - const domainRe = /^(?:https?:\/\/)?(?:[^@\/\n]+@)?(?:www\.)?([^:\/\n]+)/i; - return domainRe.exec(url)[1]; -} - -function urlReplace(match, p1, p2, p3) { - let isBrackets = (p1 !== undefined); - return (isBrackets) - ? `<a href="${fixWwwLink(p2 || p3)}">${p1}</a>` - : `<a href="${fixWwwLink(match)}">${extractDomain(match)}</a>`; -} - -function urlReplaceInCode(match, p1, p2, p3) { - let isBrackets = (p1 !== undefined); - return (isBrackets) - ? `<a href="${fixWwwLink(p2 || p3)}">${match}</a>` - : `<a href="${fixWwwLink(match)}">${match}</a>`; -} - -function messageReplyReplace(messageId) { - return function(match, mid, rid) { - let replyPart = (rid && rid != '0') ? '#' + rid : ''; - return `<a href="/${mid || messageId}${replyPart}">${match}</a>`; - }; -} - -/** - * Given "txt" message in unescaped plaintext with Juick markup, this function - * returns escaped formatted HTML string. - * - * @param {string} txt - * @param {string} messageId - current message id - * @param {boolean} isCode - * @returns {string} - */ -function juickFormat(txt, messageId, isCode) { - const urlRe = /(?:\[([^\]\[]+)\](?:\[([^\]]+)\]|\(((?:[a-z]+:\/\/|www\.|ftp\.)(?:\([-\w+*&@#/%=~|$?!:;,.]*\)|[-\w+*&@#/%=~|$?!:;,.])*(?:\([-\w+*&@#/%=~|$?!:;,.]*\)|[\w+*&@#/%=~|$]))\))|\b(?:[a-z]+:\/\/|www\.|ftp\.)(?:\([-\w+*&@#/%=~|$?!:;,.]*\)|[-\w+*&@#/%=~|$?!:;,.])*(?:\([-\w+*&@#/%=~|$?!:;,.]*\)|[\w+*&@#/%=~|$]))/gi; - const bqReplace = m => m.replace(/^(?:>|>)\s?/gmi, ''); - return (isCode) - ? formatText(txt, [ - { pr: 1, re: urlRe, with: urlReplaceInCode }, - { pr: 1, re: /\B(?:#(\d+))?(?:\/(\d+))?\b/g, with: messageReplyReplace(messageId) }, - { pr: 1, re: /\B@([\w-]+)\b/gi, with: '<a href="/$1">@$1</a>' }, - ]) - : formatText(txt, [ - { pr: 0, re: /((?:^(?:>|>)\s?[\s\S]+?$\n?)+)/gmi, brackets: true, with: ['<q>', '</q>', bqReplace] }, - { pr: 1, re: urlRe, with: urlReplace }, - { pr: 1, re: /\B(?:#(\d+))?(?:\/(\d+))?\b/g, with: messageReplyReplace(messageId) }, - { pr: 1, re: /\B@([\w-]+)\b/gi, with: '<a href="/$1">@$1</a>' }, - { pr: 2, re: /\B\*([^\n]+?)\*((?=\s)|(?=$)|(?=[!\"#$%&'*+,\-./:;<=>?@[\]^_`{|}~()]+))/g, brackets: true, with: ['<b>', '</b>'] }, - { pr: 2, re: /\B\/([^\n]+?)\/((?=\s)|(?=$)|(?=[!\"#$%&'*+,\-./:;<=>?@[\]^_`{|}~()]+))/g, brackets: true, with: ['<i>', '</i>'] }, - { pr: 2, re: /\b\_([^\n]+?)\_((?=\s)|(?=$)|(?=[!\"#$%&'*+,\-./:;<=>?@[\]^_`{|}~()]+))/g, brackets: true, with: ['<span class="u">', '</span>'] }, - { pr: 3, re: /\n/g, with: '<br/>' }, - ]); -} - -function getEmbeddableLinkTypes() { - return [ - { - name: 'Jpeg and png images', - id: 'embed_jpeg_and_png_images', - className: 'picture compact', - ctsDefault: false, - re: /\.(jpe?g|png|svg)(:[a-zA-Z]+)?(?:\?[\w&;\?=]*)?$/i, - makeNode: function(aNode, reResult, div) { - div.innerHTML = `<a href="${aNode.href}"><img src="${aNode.href}"></a>`; - return div; - } - }, - { - name: 'Gif images', - id: 'embed_gif_images', - className: 'picture compact', - ctsDefault: true, - re: /\.gif(:[a-zA-Z]+)?(?:\?[\w&;\?=]*)?$/i, - makeNode: function(aNode, reResult, div) { - div.innerHTML = `<a href="${aNode.href}"><img src="${aNode.href}"></a>`; - return div; - } - }, - { - name: 'Video (webm, mp4, ogv)', - id: 'embed_webm_and_mp4_videos', - className: 'video compact', - ctsDefault: false, - re: /\.(webm|mp4|m4v|ogv)(?:\?[\w&;\?=]*)?$/i, - makeNode: function(aNode, reResult, div) { - div.innerHTML = `<video src="${aNode.href}" title="${aNode.href}" controls></video>`; - return div; - } - }, - { - name: 'Audio (mp3, ogg, weba, opus, m4a, oga, wav)', - id: 'embed_sound_files', - className: 'audio singleColumn', - ctsDefault: false, - re: /\.(mp3|ogg|weba|opus|m4a|oga|wav)(?:\?[\w&;\?=]*)?$/i, - makeNode: function(aNode, reResult, div) { - div.innerHTML = `<audio src="${aNode.href}" title="${aNode.href}" controls></audio>`; - return div; - } - }, - { - name: 'YouTube videos (and playlists)', - id: 'embed_youtube_videos', - className: 'youtube resizableV singleColumn', - ctsDefault: false, - re: /^(?:https?:)?\/\/(?:www\.|m\.|gaming\.)?(?:youtu(?:(?:\.be\/|be\.com\/(?:v|embed)\/)([-\w]+)|be\.com\/watch)((?:(?:\?|&(?:amp;)?)(?:\w+=[-\.\w]*[-\w]))*)|youtube\.com\/playlist\?list=([-\w]*)(&(amp;)?[-\w\?=]*)?)/i, - makeNode: function(aNode, reResult, div) { - let [url, v, args, plist] = reResult; - let iframeUrl; - if (plist) { - iframeUrl = '//www.youtube-nocookie.com/embed/videoseries?list=' + plist; - } else { - let pp = {}; args.replace(/^\?/, '') - .split('&') - .map(s => s.split('=')) - .forEach(z => pp[z[0]] = z[1]); - let embedArgs = { rel: '0' }; - if (pp.t) { - const tre = /^(?:(\d+)|(?:(\d+)h)?(?:(\d+)m)?(\d+)s|(?:(\d+)h)?(\d+)m|(\d+)h)$/i; - let [, t, h, m, s, h1, m1, h2] = tre.exec(pp.t); - embedArgs['start'] = (+t) || ((+(h || h1 || h2 || 0))*60*60 + (+(m || m1 || 0))*60 + (+(s || 0))); - } - if (pp.list) { - embedArgs['list'] = pp.list; - } - v = v || pp.v; - let argsStr = Object.keys(embedArgs) - .map(k => `${k}=${embedArgs[k]}`) - .join('&'); - iframeUrl = `//www.youtube-nocookie.com/embed/${v}?${argsStr}`; - } - let iframe = makeIframe(iframeUrl, '100%', '360px'); - iframe.onload = () => makeResizableToRatio(iframe, 9.0 / 16.0); - return setContent(div, iframe); - } - }, - { - name: 'Vimeo videos', - id: 'embed_vimeo_videos', - className: 'vimeo resizableV', - ctsDefault: false, - re: /^(?:https?:)?\/\/(?:www\.)?(?:player\.)?vimeo\.com\/(?:video\/|album\/[\d]+\/video\/)?([\d]+)/i, - makeNode: function(aNode, reResult, div) { - let iframe = makeIframe('//player.vimeo.com/video/' + reResult[1], '100%', '360px'); - iframe.onload = () => makeResizableToRatio(iframe, 9.0 / 16.0); - return setContent(div, iframe); - } - } - ]; -} - -function embedLink(aNode, linkTypes, container, afterNode) { - let anyEmbed = false; - let linkId = (aNode.href.replace(/^https?:/i, '').replace(/\'/gi,'')); - let sameEmbed = container.querySelector(`*[data-linkid='${linkId}']`); // do not embed the same thing twice - if (sameEmbed === null) { - anyEmbed = [].some.call(linkTypes, function(linkType) { - let reResult = linkType.re.exec(aNode.href); - if (reResult) { - if (linkType.match && (linkType.match(aNode, reResult) === false)) { return false; } - let newNode = makeNewNode(linkType, aNode, reResult); - if (!newNode) { return false; } - newNode.setAttribute('data-linkid', linkId); - if (afterNode) { - insertAfter(newNode, afterNode); - } else { - container.appendChild(newNode); - } - aNode.classList.add('embedLink'); - return true; - } - }); - } - return anyEmbed; -} - -function embedLinks(aNodes, container) { - let anyEmbed = false; - let embeddableLinkTypes = getEmbeddableLinkTypes(); - Array.from(aNodes).forEach(aNode => { - let isEmbedded = embedLink(aNode, embeddableLinkTypes, container); - anyEmbed = anyEmbed || isEmbedded; - }); - return anyEmbed; -} - -/** - * Embed all the links inside element "x" that match to "allLinksSelector". - * All the embedded media is placed inside "div.embedContainer". - * "div.embedContainer" is inserted before an element matched by "beforeNodeSelector" - * if not present. Existing container is used otherwise. - * - * @param {Element} x - * @param {string} beforeNodeSelector - * @param {string} allLinksSelector - */ -function embedLinksToX(x, beforeNodeSelector, allLinksSelector) { - let isCtsPost = false; - let allLinks = x.querySelectorAll(allLinksSelector); - - let existingContainer = x.querySelector('div.embedContainer'); - if (existingContainer) { - embedLinks(allLinks, existingContainer); - } else { - let embedContainer = document.createElement('div'); - embedContainer.className = 'embedContainer'; - - let anyEmbed = embedLinks(allLinks, embedContainer); - if (anyEmbed) { - let beforeNode = x.querySelector(beforeNodeSelector); - x.insertBefore(embedContainer, beforeNode); - } - } -} - -function embedLinksToArticles() { - let beforeNodeSelector = 'nav.l'; - let allLinksSelector = 'p:not(.ir) a, pre a'; - Array.from(document.querySelectorAll('#content article')).forEach(article => { - embedLinksToX(article, beforeNodeSelector, allLinksSelector); - }); -} - -function embedLinksToPost() { - let beforeNodeSelector = '.msg-txt + *'; - let allLinksSelector = '.msg-txt a'; - Array.from(document.querySelectorAll('#content .msg-cont')).forEach(msg => { - embedLinksToX(msg, beforeNodeSelector, allLinksSelector); - }); -} - -/** - * Embed all the links in all messages/replies on the page. - */ -function embedAll() { - if (document.querySelector('#content article[data-mid]')) { - embedLinksToArticles(); - } else { - embedLinksToPost(); - } -} - -exports.embedAll = embedAll; -exports.embedLinksToX = embedLinksToX; -exports.format = juickFormat; |