155 lines
3.9 KiB
JavaScript
155 lines
3.9 KiB
JavaScript
function Metadata(modules) {
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var comments = modules.cache.make(function(threadId) {
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return modules.async.bind(
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modules.async.parallel(
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getJSON(url(threadId)),
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getJSON(url(threadId) + '/context'),
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),
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modules.async.map(function(t) {
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return [renderLink(t[0]), renderAnswers(t[1])];
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})
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);
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});
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return {
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get: get,
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getComments: getComments
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};
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function url(threadId) {
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return blog.path.commentsAt + '/api/v1/statuses/' + threadId;
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}
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function getJSON(url) {
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return modules.async.bind(
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modules.async.http({method: 'GET', url: url}),
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function(queryResult) {
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if(queryResult.status == 200) {
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try {
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return modules.async.wrap(JSON.parse(queryResult.responseText));
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} catch(e) {
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return modules.async.fail('Server returned invalid JSON for ' + url);
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}
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} else {
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return modules.async.fail('Could not load page ' + url);
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}
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}
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);
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}
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function getComments(articleKey) {
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var threadId = blog.articles[articleKey].metadata.comments;
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if(blog.path.commentsAt != undefined && threadId != undefined) {
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var ul = modules.dom.make('ul');
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var div = emptySection(ul);
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modules.async.run(
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modules.async.bind(
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comments.get(threadId), modules.async.map(populateComments(div, ul))
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)
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);
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return [div];
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} else {
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return [];
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}
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}
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function populateComments(div, ul) {
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return function(apiResults) {
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var post = apiResults[0], comments = apiResults[1];
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div.appendChild(post);
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comments.forEach(function(comment) {ul.appendChild(comment);});
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};
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}
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function emptySection(ul) {
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return modules.dom.make('div', {class: 'comments'}, [
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modules.dom.make('h2', {innerText: blog.wording.commentsSection}),
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ul
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]);
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}
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function renderLink(post) {
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return modules.dom.make('a', {
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href: post.url,
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innerText: blog.wording.commentsLink
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});
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}
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function getContent(descendant) {
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return descendant.content.replace(/:([^: ]+):/g, function(pattern, shortcode) {
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var emoji = descendant.emojis.find(function(e) {return e.shortcode == shortcode;});
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if(emoji) {
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return [
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'<img title=', shortcode, ' alt=', shortcode, ' src=', emoji.url, ' class="emoji"/>'
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].join('"');
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} else {
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return pattern;
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}
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});
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}
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function renderAnswers(comments) {
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return comments.descendants.map(function(descendant) {
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return modules.dom.make('li', {}, [
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modules.dom.make('a', {href: descendant.account.url}, [
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modules.dom.make('img', {
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src: descendant.account.avatar,
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alt: descendant.account.username + "'s profile picture"
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})
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]),
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modules.dom.make('div', {
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class: "metadata",
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innerHTML: modules.template.render('metadata', {
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author: author(descendant.account.url, descendant.account.username),
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date: date(descendant.created_at)
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})
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}),
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modules.dom.make('div', {innerHTML: getContent(descendant)})
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]);
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});
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}
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function author(key, name) {
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var authorUrl = key;
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if(blog.articles[key] != undefined) {
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authorUrl = blog.articles[key].metadata.author;
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}
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if(authorUrl) {
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var author = name || authorUrl.replace(/.*\//, '');
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return '<a href="' + authorUrl + '">' + author + '</a>';
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}
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}
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function date(key) {
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if(blog.articles[key] != undefined) {
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var date = new Date(blog.articles[key].metadata.date * 1000);
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} else {
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var date = new Date(key);
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}
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var format = blog.wording.dateFormat;
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if(format[0] != '[') {
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if(format[0] != '"') {
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format = '"' + format + '"';
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}
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format = '[' + format + ']';
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}
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return Date.prototype.toLocaleDateString.apply(date, JSON.parse(format));
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}
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function tags(key) {
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var tags = blog.articles[key].tagged;
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return tags.length < 1 ? null : tags.map(function(tag) {
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return '<a class="tag" href="/' + tag + '">' + tag + '</a>';
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}).join(', ');
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}
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function get(key) {
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return modules.dom.make('div', {
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class: "metadata",
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innerHTML: modules.template.render('metadata', {
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author: author(key),
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date: date(key),
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tags: tags(key)
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})
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});
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}
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}
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