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Diffstat (limited to 'ext/js/templates/template-renderer.js')
| -rw-r--r-- | ext/js/templates/template-renderer.js | 620 |
1 files changed, 0 insertions, 620 deletions
diff --git a/ext/js/templates/template-renderer.js b/ext/js/templates/template-renderer.js deleted file mode 100644 index 02471c97..00000000 --- a/ext/js/templates/template-renderer.js +++ /dev/null @@ -1,620 +0,0 @@ -/* - * Copyright (C) 2016-2021 Yomichan Authors - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <https://www.gnu.org/licenses/>. - */ - -/* global - * DictionaryDataUtil - * Handlebars - * StructuredContentGenerator - * TemplateRendererMediaProvider - */ - -class TemplateRenderer { - constructor(japaneseUtil, cssStyleApplier) { - this._japaneseUtil = japaneseUtil; - this._cssStyleApplier = cssStyleApplier; - this._mediaProvider = new TemplateRendererMediaProvider(); - this._cache = new Map(); - this._cacheMaxSize = 5; - this._helpersRegistered = false; - this._stateStack = null; - this._dataTypes = new Map(); - this._requirements = null; - this._cleanupCallbacks = null; - this._temporaryElement = null; - } - - registerDataType(name, {modifier=null, composeData=null}) { - this._dataTypes.set(name, {modifier, composeData}); - } - - render(template, data, type) { - const instance = this._getTemplateInstance(template); - data = this._getModifiedData(data, void 0, type); - return this._renderTemplate(instance, data); - } - - renderMulti(items) { - const results = []; - for (const {template, templateItems} of items) { - const instance = this._getTemplateInstance(template); - for (const {type, commonData, datas} of templateItems) { - for (let data of datas) { - let result; - try { - data = this._getModifiedData(data, commonData, type); - result = this._renderTemplate(instance, data); - result = {result}; - } catch (error) { - result = {error}; - } - results.push(result); - } - } - } - return results; - } - - getModifiedData(data, type) { - return this._getModifiedData(data, void 0, type); - } - - // Private - - _getTemplateInstance(template) { - if (!this._helpersRegistered) { - this._registerHelpers(); - } - - const cache = this._cache; - let instance = cache.get(template); - if (typeof instance === 'undefined') { - this._updateCacheSize(this._cacheMaxSize - 1); - instance = Handlebars.compile(template); - cache.set(template, instance); - } - - return instance; - } - - _renderTemplate(instance, data) { - const cleanupCallbacks = []; - const requirements = []; - try { - this._stateStack = [new Map()]; - this._requirements = requirements; - this._mediaProvider.requirements = requirements; - this._cleanupCallbacks = cleanupCallbacks; - const result = instance(data).trim(); - return {result, requirements}; - } finally { - for (const callback of cleanupCallbacks) { callback(); } - this._stateStack = null; - this._requirements = null; - this._mediaProvider.requirements = null; - this._cleanupCallbacks = null; - } - } - - _getModifiedData(data, commonData, type) { - if (typeof type === 'string') { - const typeInfo = this._dataTypes.get(type); - if (typeof typeInfo !== 'undefined') { - if (typeof commonData !== 'undefined') { - const {composeData} = typeInfo; - if (typeof composeData === 'function') { - data = composeData(data, commonData); - } - } - const {modifier} = typeInfo; - if (typeof modifier === 'function') { - data = modifier(data); - } - } - } - return data; - } - - _updateCacheSize(maxSize) { - const cache = this._cache; - let removeCount = cache.size - maxSize; - if (removeCount <= 0) { return; } - - for (const key of cache.keys()) { - cache.delete(key); - if (--removeCount <= 0) { break; } - } - } - - _registerHelpers() { - Handlebars.partials = Handlebars.templates; - - const helpers = [ - ['dumpObject', this._dumpObject.bind(this)], - ['furigana', this._furigana.bind(this)], - ['furiganaPlain', this._furiganaPlain.bind(this)], - ['kanjiLinks', this._kanjiLinks.bind(this)], - ['multiLine', this._multiLine.bind(this)], - ['sanitizeCssClass', this._sanitizeCssClass.bind(this)], - ['regexReplace', this._regexReplace.bind(this)], - ['regexMatch', this._regexMatch.bind(this)], - ['mergeTags', this._mergeTags.bind(this)], - ['eachUpTo', this._eachUpTo.bind(this)], - ['spread', this._spread.bind(this)], - ['op', this._op.bind(this)], - ['get', this._get.bind(this)], - ['set', this._set.bind(this)], - ['scope', this._scope.bind(this)], - ['property', this._property.bind(this)], - ['noop', this._noop.bind(this)], - ['isMoraPitchHigh', this._isMoraPitchHigh.bind(this)], - ['getKanaMorae', this._getKanaMorae.bind(this)], - ['typeof', this._getTypeof.bind(this)], - ['join', this._join.bind(this)], - ['concat', this._concat.bind(this)], - ['pitchCategories', this._pitchCategories.bind(this)], - ['formatGlossary', this._formatGlossary.bind(this)], - ['hasMedia', this._hasMedia.bind(this)], - ['getMedia', this._getMedia.bind(this)] - ]; - - for (const [name, helper] of helpers) { - this._registerHelper(name, helper); - } - - this._helpersRegistered = true; - } - - _registerHelper(name, helper) { - function wrapper(...args) { - return helper(this, ...args); - } - Handlebars.registerHelper(name, wrapper); - } - - _escape(text) { - return Handlebars.Utils.escapeExpression(text); - } - - _dumpObject(context, options) { - const dump = JSON.stringify(options.fn(context), null, 4); - return this._escape(dump); - } - - _furigana(context, ...args) { - const {expression, reading} = this._getFuriganaExpressionAndReading(context, ...args); - const segs = this._japaneseUtil.distributeFurigana(expression, reading); - - let result = ''; - for (const {text, reading: reading2} of segs) { - if (reading2.length > 0) { - result += `<ruby>${text}<rt>${reading2}</rt></ruby>`; - } else { - result += text; - } - } - - return result; - } - - _furiganaPlain(context, ...args) { - const {expression, reading} = this._getFuriganaExpressionAndReading(context, ...args); - const segs = this._japaneseUtil.distributeFurigana(expression, reading); - - let result = ''; - for (const {text, reading: reading2} of segs) { - if (reading2.length > 0) { - if (result.length > 0) { result += ' '; } - result += `${text}[${reading2}]`; - } else { - result += text; - } - } - - return result; - } - - _getFuriganaExpressionAndReading(context, ...args) { - const options = args[args.length - 1]; - if (args.length >= 3) { - return {expression: args[0], reading: args[1]}; - } else { - const {expression, reading} = options.fn(context); - return {expression, reading}; - } - } - - _kanjiLinks(context, options) { - const jp = this._japaneseUtil; - let result = ''; - for (const c of options.fn(context)) { - if (jp.isCodePointKanji(c.codePointAt(0))) { - result += `<a href="#" class="kanji-link">${c}</a>`; - } else { - result += c; - } - } - - return result; - } - - _stringToMultiLineHtml(string) { - return string.split('\n').join('<br>'); - } - - _multiLine(context, options) { - return this._stringToMultiLineHtml(options.fn(context)); - } - - _sanitizeCssClass(context, options) { - return options.fn(context).replace(/[^_a-z0-9\u00a0-\uffff]/ig, '_'); - } - - _regexReplace(context, ...args) { - // Usage: - // {{#regexReplace regex string [flags]}}content{{/regexReplace}} - // regex: regular expression string - // string: string to replace - // flags: optional flags for regular expression - // e.g. "i" for case-insensitive, "g" for replace all - let value = args[args.length - 1].fn(context); - if (args.length >= 3) { - try { - const flags = args.length > 3 ? args[2] : 'g'; - const regex = new RegExp(args[0], flags); - value = value.replace(regex, args[1]); - } catch (e) { - return `${e}`; - } - } - return value; - } - - _regexMatch(context, ...args) { - // Usage: - // {{#regexMatch regex [flags]}}content{{/regexMatch}} - // regex: regular expression string - // flags: optional flags for regular expression - // e.g. "i" for case-insensitive, "g" for match all - let value = args[args.length - 1].fn(context); - if (args.length >= 2) { - try { - const flags = args.length > 2 ? args[1] : ''; - const regex = new RegExp(args[0], flags); - const parts = []; - value.replace(regex, (g0) => parts.push(g0)); - value = parts.join(''); - } catch (e) { - return `${e}`; - } - } - return value; - } - - _mergeTags(context, object, isGroupMode, isMergeMode) { - const tagSources = []; - if (isGroupMode || isMergeMode) { - for (const definition of object.definitions) { - tagSources.push(definition.definitionTags); - } - } else { - tagSources.push(object.definitionTags); - } - - const tags = new Set(); - for (const tagSource of tagSources) { - if (!Array.isArray(tagSource)) { continue; } - for (const tag of tagSource) { - tags.add(tag.name); - } - } - - return [...tags].join(', '); - } - - _eachUpTo(context, iterable, maxCount, options) { - if (iterable) { - const results = []; - let any = false; - for (const entry of iterable) { - any = true; - if (results.length >= maxCount) { break; } - const processedEntry = options.fn(entry); - results.push(processedEntry); - } - if (any) { - return results.join(''); - } - } - return options.inverse(context); - } - - _spread(context, ...args) { - const result = []; - for (let i = 0, ii = args.length - 1; i < ii; ++i) { - try { - result.push(...args[i]); - } catch (e) { - // NOP - } - } - return result; - } - - _op(context, ...args) { - switch (args.length) { - case 3: return this._evaluateUnaryExpression(args[0], args[1]); - case 4: return this._evaluateBinaryExpression(args[0], args[1], args[2]); - case 5: return this._evaluateTernaryExpression(args[0], args[1], args[2], args[3]); - default: return void 0; - } - } - - _evaluateUnaryExpression(operator, operand1) { - switch (operator) { - case '+': return +operand1; - case '-': return -operand1; - case '~': return ~operand1; - case '!': return !operand1; - default: return void 0; - } - } - - _evaluateBinaryExpression(operator, operand1, operand2) { - switch (operator) { - case '+': return operand1 + operand2; - case '-': return operand1 - operand2; - case '/': return operand1 / operand2; - case '*': return operand1 * operand2; - case '%': return operand1 % operand2; - case '**': return operand1 ** operand2; - case '==': return operand1 == operand2; // eslint-disable-line eqeqeq - case '!=': return operand1 != operand2; // eslint-disable-line eqeqeq - case '===': return operand1 === operand2; - case '!==': return operand1 !== operand2; - case '<': return operand1 < operand2; - case '<=': return operand1 <= operand2; - case '>': return operand1 > operand2; - case '>=': return operand1 >= operand2; - case '<<': return operand1 << operand2; - case '>>': return operand1 >> operand2; - case '>>>': return operand1 >>> operand2; - case '&': return operand1 & operand2; - case '|': return operand1 | operand2; - case '^': return operand1 ^ operand2; - case '&&': return operand1 && operand2; - case '||': return operand1 || operand2; - default: return void 0; - } - } - - _evaluateTernaryExpression(operator, operand1, operand2, operand3) { - switch (operator) { - case '?:': return operand1 ? operand2 : operand3; - default: return void 0; - } - } - - _get(context, key) { - for (let i = this._stateStack.length; --i >= 0;) { - const map = this._stateStack[i]; - if (map.has(key)) { - return map.get(key); - } - } - return void 0; - } - - _set(context, ...args) { - switch (args.length) { - case 2: - { - const [key, options] = args; - const value = options.fn(context); - this._stateStack[this._stateStack.length - 1].set(key, value); - } - break; - case 3: - { - const [key, value] = args; - this._stateStack[this._stateStack.length - 1].set(key, value); - } - break; - } - return ''; - } - - _scope(context, options) { - try { - this._stateStack.push(new Map()); - return options.fn(context); - } finally { - if (this._stateStack.length > 1) { - this._stateStack.pop(); - } - } - } - - _property(context, ...args) { - const ii = args.length - 1; - if (ii <= 0) { return void 0; } - - try { - let value = args[0]; - for (let i = 1; i < ii; ++i) { - value = value[args[i]]; - } - return value; - } catch (e) { - return void 0; - } - } - - _noop(context, options) { - return options.fn(context); - } - - _isMoraPitchHigh(context, index, position) { - return this._japaneseUtil.isMoraPitchHigh(index, position); - } - - _getKanaMorae(context, text) { - return this._japaneseUtil.getKanaMorae(`${text}`); - } - - _getTypeof(context, ...args) { - const ii = args.length - 1; - const value = (ii > 0 ? args[0] : args[ii].fn(context)); - return typeof value; - } - - _join(context, ...args) { - return args.length > 1 ? args.slice(1, args.length - 1).flat().join(args[0]) : ''; - } - - _concat(context, ...args) { - let result = ''; - for (let i = 0, ii = args.length - 1; i < ii; ++i) { - result += args[i]; - } - return result; - } - - _pitchCategories(context, data) { - const {pronunciations, headwords} = data.dictionaryEntry; - const categories = new Set(); - for (const {headwordIndex, pitches} of pronunciations) { - const {reading, wordClasses} = headwords[headwordIndex]; - const isVerbOrAdjective = DictionaryDataUtil.isNonNounVerbOrAdjective(wordClasses); - for (const {position} of pitches) { - const category = this._japaneseUtil.getPitchCategory(reading, position, isVerbOrAdjective); - if (category !== null) { - categories.add(category); - } - } - } - return [...categories]; - } - - _getTemporaryElement() { - let element = this._temporaryElement; - if (element === null) { - element = document.createElement('div'); - this._temporaryElement = element; - } - return element; - } - - _getHtml(node) { - const container = this._getTemporaryElement(); - container.appendChild(node); - this._normalizeHtml(container); - const result = container.innerHTML; - container.textContent = ''; - return result; - } - - _normalizeHtml(root) { - const {ELEMENT_NODE, TEXT_NODE} = Node; - const treeWalker = document.createTreeWalker(root, NodeFilter.SHOW_ELEMENT | NodeFilter.SHOW_TEXT); - const elements = []; - const textNodes = []; - while (true) { - const node = treeWalker.nextNode(); - if (node === null) { break; } - switch (node.nodeType) { - case ELEMENT_NODE: - elements.push(node); - break; - case TEXT_NODE: - textNodes.push(node); - break; - } - } - this._cssStyleApplier.applyClassStyles(elements); - for (const element of elements) { - const {dataset} = element; - for (const key of Object.keys(dataset)) { - delete dataset[key]; - } - } - for (const textNode of textNodes) { - this._replaceNewlines(textNode); - } - } - - _replaceNewlines(textNode) { - const parts = textNode.nodeValue.split('\n'); - if (parts.length <= 1) { return; } - const {parentNode} = textNode; - if (parentNode === null) { return; } - const fragment = document.createDocumentFragment(); - for (let i = 0, ii = parts.length; i < ii; ++i) { - if (i > 0) { fragment.appendChild(document.createElement('br')); } - fragment.appendChild(document.createTextNode(parts[i])); - } - parentNode.replaceChild(fragment, textNode); - } - - _createStructuredContentGenerator(data) { - const mediaLoader = { - loadMedia: async (path, dictionary, onLoad, onUnload) => { - const imageUrl = this._mediaProvider.getMedia(data, ['dictionaryMedia', path], {dictionary, format: 'fileName', default: null}); - if (imageUrl !== null) { - onLoad(imageUrl); - this._cleanupCallbacks.push(() => onUnload(true)); - } - } - }; - return new StructuredContentGenerator(mediaLoader, document); - } - - _formatGlossary(context, dictionary, options) { - const data = options.data.root; - const content = options.fn(context); - if (typeof content === 'string') { return this._stringToMultiLineHtml(this._escape(content)); } - if (!(typeof content === 'object' && content !== null)) { return ''; } - switch (content.type) { - case 'image': return this._formatGlossaryImage(content, dictionary, data); - case 'structured-content': return this._formatStructuredContent(content, dictionary, data); - } - return ''; - } - - _formatGlossaryImage(content, dictionary, data) { - const structuredContentGenerator = this._createStructuredContentGenerator(data); - const node = structuredContentGenerator.createDefinitionImage(content, dictionary); - return this._getHtml(node); - } - - _formatStructuredContent(content, dictionary, data) { - const structuredContentGenerator = this._createStructuredContentGenerator(data); - const node = structuredContentGenerator.createStructuredContent(content.content, dictionary); - return node !== null ? this._getHtml(node) : ''; - } - - _hasMedia(context, ...args) { - const ii = args.length - 1; - const options = args[ii]; - return this._mediaProvider.hasMedia(options.data.root, args.slice(0, ii), options.hash); - } - - _getMedia(context, ...args) { - const ii = args.length - 1; - const options = args[ii]; - return this._mediaProvider.getMedia(options.data.root, args.slice(0, ii), options.hash); - } -} |