599 lines
14 KiB
JavaScript
599 lines
14 KiB
JavaScript
/**
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* Manage downloads
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*/
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(function() {
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var cache = {};
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var form = $('form');
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var minified = true;
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var dependencies = {};
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var treeURL = 'https://api.github.com/repos/PrismJS/prism/git/trees/gh-pages?recursive=1';
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var treePromise = new Promise(function(resolve) {
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$u.xhr({
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url: treeURL,
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callback: function(xhr) {
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if (xhr.status < 400) {
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resolve(JSON.parse(xhr.responseText).tree);
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}
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}
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});
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});
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var hstr = window.location.hash.match(/(?:languages|plugins)=[-+\w]+|themes=[-\w]+/g);
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if (hstr) {
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hstr.forEach(function(str) {
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var kv = str.split('=', 2),
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category = kv[0],
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ids = kv[1].split('+');
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if (category !== 'meta' && category !== 'core' && components[category]) {
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for (var id in components[category]) {
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if (components[category][id].option) {
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delete components[category][id].option;
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}
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}
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if (category === 'themes' && ids.length) {
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var themeInput = $('#theme input[value="' + ids[0] + '"]');
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if (themeInput) {
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themeInput.checked = true;
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}
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setTheme(ids[0]);
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}
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var makeDefault = function (id) {
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if (id !== 'meta') {
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if (components[category][id]) {
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if (components[category][id].option !== 'default') {
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if (typeof components[category][id] === 'string') {
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components[category][id] = { title: components[category][id] }
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}
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components[category][id].option = 'default';
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}
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if (components[category][id].require) {
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var deps = components[category][id].require;
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if ($u.type(deps) !== 'array') {
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deps = [deps];
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}
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deps.forEach(makeDefault);
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}
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}
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}
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};
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ids.forEach(makeDefault);
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}
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});
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}
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// Stay compatible with old querystring feature
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var qstr = window.location.search.match(/(?:languages|plugins)=[-+\w]+|themes=[-\w]+/g);
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if (qstr && !hstr) {
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window.location.hash = window.location.search.replace(/^\?/, '');
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window.location.search = '';
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}
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var storedTheme = localStorage.getItem('theme');
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for (var category in components) {
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var all = components[category];
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all.meta.section = $u.element.create('section', {
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className: 'options',
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id: 'category-' + category,
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contents: {
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tag: 'h1',
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contents: category.charAt(0).toUpperCase() + category.slice(1)
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},
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inside: '#components'
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});
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if (all.meta.addCheckAll) {
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$u.element.create('label', {
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attributes: {
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'data-id': 'check-all-' + category
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},
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contents: [
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{
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tag: 'input',
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properties: {
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type: 'checkbox',
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name: 'check-all-' + category,
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value: '',
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checked: false,
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onclick: (function(category, all){
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return function () {
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var checkAll = this;
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$$('input[name="download-' + category + '"]').forEach(function(input) {
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all[input.value].enabled = input.checked = checkAll.checked;
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});
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update(category);
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};
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})(category, all)
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}
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},
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'Select/unselect all'
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],
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inside: all.meta.section
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});
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}
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for (var id in all) {
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if(id === 'meta') {
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continue;
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}
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var checked = false, disabled = false;
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var option = all[id].option || all.meta.option;
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switch (option) {
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case 'mandatory': disabled = true; // fallthrough
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case 'default': checked = true;
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}
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if (category === 'themes' && storedTheme) {
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checked = id === storedTheme;
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}
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var filepath = all.meta.path.replace(/\{id}/g, id);
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var info = all[id] = {
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title: all[id].title || all[id],
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aliasTitles: all[id].aliasTitles,
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noCSS: all[id].noCSS || all.meta.noCSS,
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noJS: all[id].noJS || all.meta.noJS,
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enabled: checked,
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require: $u.type(all[id].require) === 'string' ? [all[id].require] : all[id].require,
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after: $u.type(all[id].after) === 'string' ? [all[id].after] : all[id].after,
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peerDependencies: $u.type(all[id].peerDependencies) === 'string' ? [all[id].peerDependencies] : all[id].peerDependencies,
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owner: all[id].owner,
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files: {
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minified: {
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paths: [],
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size: 0
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},
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dev: {
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paths: [],
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size: 0
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}
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}
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};
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if (info.require) {
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info.require.forEach(function (v) {
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dependencies[v] = (dependencies[v] || []).concat(id);
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});
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}
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if (!all[id].noJS && !/\.css$/.test(filepath)) {
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info.files.minified.paths.push(filepath.replace(/(\.js)?$/, '.min.js'));
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info.files.dev.paths.push(filepath.replace(/(\.js)?$/, '.js'));
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}
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if ((!all[id].noCSS && !/\.js$/.test(filepath)) || /\.css$/.test(filepath)) {
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var cssFile = filepath.replace(/(\.css)?$/, '.css');
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info.files.minified.paths.push(cssFile);
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info.files.dev.paths.push(cssFile);
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}
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function getLanguageTitle(lang) {
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if (!lang.aliasTitles)
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return lang.title;
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var titles = [lang.title];
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for (var alias in lang.aliasTitles)
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if (lang.aliasTitles.hasOwnProperty(alias))
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titles.push(lang.aliasTitles[alias]);
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return titles.join(" + ");
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}
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var label = $u.element.create('label', {
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attributes: {
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'data-id': id
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},
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contents: [
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{
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tag: 'input',
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properties: {
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type: all.meta.exclusive? 'radio' : 'checkbox',
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name: 'download-' + category,
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value: id,
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checked: checked,
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disabled: disabled,
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onclick: (function(id, category, all){
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return function () {
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$$('input[name="' + this.name + '"]').forEach(function(input) {
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all[input.value].enabled = input.checked;
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});
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if (all[id].require && this.checked) {
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all[id].require.forEach(function(v) {
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var input = $('label[data-id="' + v + '"] > input');
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input.checked = true;
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input.onclick();
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});
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}
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if (dependencies[id] && !this.checked) { // It’s required by others
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dependencies[id].forEach(function(dependent) {
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var input = $('label[data-id="' + dependent + '"] > input');
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input.checked = false;
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input.onclick();
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});
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}
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update(category, id);
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};
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})(id, category, all)
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}
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},
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all.meta.link? {
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tag: 'a',
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properties: {
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href: all.meta.link.replace(/\{id}/g, id),
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className: 'name'
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},
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contents: info.title
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} : {
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tag: 'span',
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properties: {
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className: 'name'
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},
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contents: getLanguageTitle(info)
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},
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' ',
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all[id].owner? {
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tag: 'a',
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properties: {
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href: 'https://github.com/' + all[id].owner,
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className: 'owner',
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target: '_blank'
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},
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contents: all[id].owner
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} : ' ',
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{
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tag: 'strong',
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className: 'filesize'
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}
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],
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inside: all.meta.section
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});
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// Add click events on main theme selector too.
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(function (label) {
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if (category === 'themes') {
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var themeInput = $('#theme input[value="' + id + '"]');
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var input = $('input', label);
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if (themeInput) {
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var themeInputOnclick = themeInput.onclick;
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themeInput.onclick = function () {
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input.checked = true;
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input.onclick();
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themeInputOnclick && themeInputOnclick.call(themeInput);
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};
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}
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}
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}(label));
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}
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}
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form.elements.compression[0].onclick =
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form.elements.compression[1].onclick = function() {
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minified = !!+this.value;
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getFilesSizes();
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};
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function getFileSize(filepath) {
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return treePromise.then(function(tree) {
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for(var i=0, l=tree.length; i<l; i++) {
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if(tree[i].path === filepath) {
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return tree[i].size;
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}
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}
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});
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}
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function getFilesSizes() {
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for (var category in components) {
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var all = components[category];
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for (var id in all) {
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if(id === 'meta') {
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continue;
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}
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var distro = all[id].files[minified? 'minified' : 'dev'],
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files = distro.paths;
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files.forEach(function (filepath) {
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var file = cache[filepath] = cache[filepath] || {};
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if(!file.size) {
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(function(category, id) {
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getFileSize(filepath).then(function(size) {
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if(size) {
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file.size = size;
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distro.size += file.size;
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update(category, id);
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}
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});
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}(category, id));
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}
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else {
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update(category, id);
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}
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});
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}
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}
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}
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getFilesSizes();
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function getFileContents(filepath) {
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return new Promise(function(resolve, reject) {
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$u.xhr({
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url: filepath,
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callback: function(xhr) {
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if (xhr.status < 400 && xhr.responseText) {
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resolve(xhr.responseText);
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} else {
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reject();
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}
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}
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});
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});
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}
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function prettySize(size) {
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return Math.round(100 * size / 1024)/100 + 'KB';
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}
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function update(updatedCategory, updatedId){
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// Update total size
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var total = {js: 0, css: 0}, updated = {js: 0, css: 0};
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for (var category in components) {
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var all = components[category];
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var allChecked = true;
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for (var id in all) {
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var info = all[id];
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if (info.enabled || id == updatedId) {
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var distro = info.files[minified? 'minified' : 'dev'];
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distro.paths.forEach(function(path) {
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if (cache[path]) {
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var file = cache[path];
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var type = path.match(/\.(\w+)$/)[1],
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size = file.size || 0;
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if (info.enabled) {
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if (!file.contentsPromise) {
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file.contentsPromise = getFileContents(path);
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}
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total[type] += size;
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}
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if (id == updatedId) {
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updated[type] += size;
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}
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}
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});
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}
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if (id !== 'meta' && !info.enabled) {
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allChecked = false;
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}
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// Select main theme
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if (category === 'themes' && id === updatedId && info.enabled) {
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var themeInput = $('#theme input[value="' + updatedId + '"]');
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if (themeInput) {
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themeInput.checked = true;
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}
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setTheme(updatedId);
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}
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}
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if (all.meta.addCheckAll) {
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$('input[name="check-all-' + category + '"]').checked = allChecked;
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}
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}
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total.all = total.js + total.css;
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if (updatedId) {
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updated.all = updated.js + updated.css;
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$u.element.prop($('label[data-id="' + updatedId + '"] .filesize'), {
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textContent: prettySize(updated.all),
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title: (updated.js ? Math.round(100 * updated.js / updated.all) + '% JavaScript' : '') +
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(updated.js && updated.css ? ' + ' : '') +
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(updated.css ? Math.round(100 * updated.css / updated.all) + '% CSS' : '')
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});
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}
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$('#filesize').textContent = prettySize(total.all);
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$u.element.prop($('#percent-js'), {
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textContent: Math.round(100 * total.js / total.all) + '%',
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title: prettySize(total.js)
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});
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$u.element.prop($('#percent-css'), {
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textContent: Math.round(100 * total.css / total.all) + '%',
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title: prettySize(total.css)
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});
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delayedGenerateCode();
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}
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var timerId = 0;
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// "debounce" multiple rapid requests to generate and highlight code
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function delayedGenerateCode(){
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if ( timerId !== 0 ) {
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clearTimeout(timerId);
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}
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timerId = setTimeout(generateCode, 500);
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}
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function getSortedComponents(components, requireName, sorted) {
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if (!sorted) {
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sorted = [];
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for (var component in components) {
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sorted.push(component);
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}
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}
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var i = 0;
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while (i < sorted.length) {
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var id = sorted[i];
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var indexOfRequirement = i;
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var notNow = false;
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for (var requirement in components[id][requireName]) {
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indexOfRequirement = sorted.indexOf(components[id][requireName][requirement]);
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if (indexOfRequirement > i) {
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notNow = true;
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break;
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}
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}
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if (notNow) {
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var tmp = sorted[i];
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sorted[i] = sorted[indexOfRequirement];
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sorted[indexOfRequirement] = tmp;
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}
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else {
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i++;
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}
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}
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return sorted;
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}
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function getSortedComponentsByRequirements(components, afterName) {
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var sorted = getSortedComponents(components, afterName);
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return getSortedComponents(components, "require", sorted);
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}
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function generateCode(){
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var promises = [];
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var redownload = {};
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for (var category in components) {
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var all = components[category];
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// In case if one component requires other, required component should go first.
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var sorted = getSortedComponentsByRequirements(all, category === 'languages' ? 'peerDependencies' : 'after');
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for (var i = 0; i < sorted.length; i++) {
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var id = sorted[i];
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if(id === 'meta') {
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continue;
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}
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var info = all[id];
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if (info.enabled) {
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if (category !== 'core') {
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redownload[category] = redownload[category] || [];
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redownload[category].push(id);
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}
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info.files[minified? 'minified' : 'dev'].paths.forEach(function (path) {
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if (cache[path]) {
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var type = path.match(/\.(\w+)$/)[1];
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promises.push({
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contentsPromise: cache[path].contentsPromise,
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path: path,
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type: type
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});
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}
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});
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}
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}
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}
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// Hide error message if visible
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var error = $('#download .error');
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error.style.display = '';
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Promise.all([buildCode(promises), getVersion()]).then(function(arr) {
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var res = arr[0];
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var version = arr[1];
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var code = res.code;
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var errors = res.errors;
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if(errors.length) {
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error.style.display = 'block';
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error.innerHTML = '';
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$u.element.contents(error, errors);
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}
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var redownloadUrl = window.location.href.split("#")[0] + "#";
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for (var category in redownload) {
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redownloadUrl += category + "=" + redownload[category].join('+') + "&";
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}
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redownloadUrl = redownloadUrl.replace(/&$/,"");
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window.location.replace(redownloadUrl);
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var versionComment = "/* PrismJS " + version + "\n" + redownloadUrl + " */";
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for (var type in code) {
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var codeElement = $('#download-' + type + ' code');
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codeElement.textContent = versionComment + "\n" + code[type];
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Prism.highlightElement(codeElement, true);
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$('#download-' + type + ' .download-button').href = 'data:application/octet-stream;charset=utf-8,' + encodeURIComponent(versionComment + "\n" + code[type]);
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}
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});
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}
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function buildCode(promises) {
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var i = 0,
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l = promises.length;
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var code = {js: '', css: ''};
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var errors = [];
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var f = function(resolve) {
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if(i < l) {
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var p = promises[i];
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p.contentsPromise.then(function(contents) {
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code[p.type] += contents + (p.type === 'js' && !/;\s*$/.test(contents) ? ';' : '') + '\n';
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i++;
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f(resolve);
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});
|
||
p.contentsPromise['catch'](function() {
|
||
errors.push($u.element.create({
|
||
tag: 'p',
|
||
prop: {
|
||
textContent: 'An error occurred while fetching the file "' + p.path + '".'
|
||
}
|
||
}));
|
||
i++;
|
||
f(resolve);
|
||
});
|
||
} else {
|
||
resolve({code: code, errors: errors});
|
||
}
|
||
};
|
||
|
||
return new Promise(f);
|
||
}
|
||
|
||
function getVersion() {
|
||
return getFileContents('./package.json').then(function (jsonStr) {
|
||
return JSON.parse(jsonStr).version;
|
||
});
|
||
}
|
||
|
||
})();
|