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Diffstat (limited to 'ext/js/display/structured-content-generator.js')
| -rw-r--r-- | ext/js/display/structured-content-generator.js | 230 |
1 files changed, 0 insertions, 230 deletions
diff --git a/ext/js/display/structured-content-generator.js b/ext/js/display/structured-content-generator.js deleted file mode 100644 index 833df6f6..00000000 --- a/ext/js/display/structured-content-generator.js +++ /dev/null @@ -1,230 +0,0 @@ -/* - * Copyright (C) 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/>. - */ - -class StructuredContentGenerator { - constructor(mediaLoader, document) { - this._mediaLoader = mediaLoader; - this._document = document; - } - - createStructuredContent(content, dictionary) { - if (typeof content === 'string') { - return this._createTextNode(content); - } - if (!(typeof content === 'object' && content !== null)) { - return null; - } - if (Array.isArray(content)) { - const fragment = this._createDocumentFragment(); - for (const item of content) { - const child = this.createStructuredContent(item, dictionary); - if (child !== null) { fragment.appendChild(child); } - } - return fragment; - } - const {tag} = content; - switch (tag) { - case 'br': - return this._createStructuredContentElement(tag, content, dictionary, 'simple', false, false); - case 'ruby': - case 'rt': - case 'rp': - return this._createStructuredContentElement(tag, content, dictionary, 'simple', true, false); - case 'table': - return this._createStructuredContentTableElement(tag, content, dictionary); - case 'thead': - case 'tbody': - case 'tfoot': - case 'tr': - return this._createStructuredContentElement(tag, content, dictionary, 'table', true, false); - case 'th': - case 'td': - return this._createStructuredContentElement(tag, content, dictionary, 'table-cell', true, true); - case 'div': - case 'span': - return this._createStructuredContentElement(tag, content, dictionary, 'simple', true, true); - case 'img': - return this.createDefinitionImage(content, dictionary); - } - return null; - } - - createDefinitionImage(data, dictionary) { - const { - path, - width, - height, - preferredWidth, - preferredHeight, - title, - pixelated, - imageRendering, - appearance, - background, - collapsed, - collapsible, - verticalAlign, - sizeUnits - } = data; - - const hasPreferredWidth = (typeof preferredWidth === 'number'); - const hasPreferredHeight = (typeof preferredHeight === 'number'); - const invAspectRatio = ( - hasPreferredWidth && hasPreferredHeight ? - preferredHeight / preferredWidth : - height / width - ); - const usedWidth = ( - hasPreferredWidth ? - preferredWidth : - (hasPreferredHeight ? preferredHeight * invAspectRatio : width) - ); - - const node = this._createElement('a', 'gloss-image-link'); - node.target = '_blank'; - node.rel = 'noreferrer noopener'; - - const imageContainer = this._createElement('span', 'gloss-image-container'); - node.appendChild(imageContainer); - - const aspectRatioSizer = this._createElement('span', 'gloss-image-sizer'); - imageContainer.appendChild(aspectRatioSizer); - - const imageBackground = this._createElement('span', 'gloss-image-background'); - imageContainer.appendChild(imageBackground); - - const image = this._createElement('img', 'gloss-image'); - image.alt = ''; - imageContainer.appendChild(image); - - const overlay = this._createElement('span', 'gloss-image-container-overlay'); - imageContainer.appendChild(overlay); - - const linkText = this._createElement('span', 'gloss-image-link-text'); - linkText.textContent = 'Image'; - node.appendChild(linkText); - - node.dataset.path = path; - node.dataset.dictionary = dictionary; - node.dataset.imageLoadState = 'not-loaded'; - node.dataset.hasAspectRatio = 'true'; - node.dataset.imageRendering = typeof imageRendering === 'string' ? imageRendering : (pixelated ? 'pixelated' : 'auto'); - node.dataset.appearance = typeof appearance === 'string' ? appearance : 'auto'; - node.dataset.background = typeof background === 'boolean' ? `${background}` : 'true'; - node.dataset.collapsed = typeof collapsed === 'boolean' ? `${collapsed}` : 'false'; - node.dataset.collapsible = typeof collapsible === 'boolean' ? `${collapsible}` : 'true'; - if (typeof verticalAlign === 'string') { - node.dataset.verticalAlign = verticalAlign; - } - if (typeof sizeUnits === 'string' && (hasPreferredWidth || hasPreferredHeight)) { - node.dataset.sizeUnits = sizeUnits; - } - - imageContainer.style.width = `${usedWidth}em`; - if (typeof title === 'string') { - imageContainer.title = title; - } - - aspectRatioSizer.style.paddingTop = `${invAspectRatio * 100.0}%`; - - if (this._mediaLoader !== null) { - this._mediaLoader.loadMedia( - path, - dictionary, - (url) => this._setImageData(node, image, imageBackground, url, false), - () => this._setImageData(node, image, imageBackground, null, true) - ); - } - - return node; - } - - // Private - - _createElement(tagName, className) { - const node = this._document.createElement(tagName); - node.className = className; - return node; - } - - _createTextNode(data) { - return this._document.createTextNode(data); - } - - _createDocumentFragment() { - return this._document.createDocumentFragment(); - } - - _setImageData(node, image, imageBackground, url, unloaded) { - if (url !== null) { - image.src = url; - node.href = url; - node.dataset.imageLoadState = 'loaded'; - imageBackground.style.setProperty('--image', `url("${url}")`); - } else { - image.removeAttribute('src'); - node.removeAttribute('href'); - node.dataset.imageLoadState = unloaded ? 'unloaded' : 'load-error'; - imageBackground.style.removeProperty('--image'); - } - } - - _createStructuredContentTableElement(tag, content, dictionary) { - const container = this._createElement('div', 'gloss-sc-table-container'); - const table = this._createStructuredContentElement(tag, content, dictionary, 'table', true, false); - container.appendChild(table); - return container; - } - - _createStructuredContentElement(tag, content, dictionary, type, hasChildren, hasStyle) { - const node = this._createElement(tag, `gloss-sc-${tag}`); - switch (type) { - case 'table-cell': - { - const {colSpan, rowSpan} = content; - if (typeof colSpan === 'number') { node.colSpan = colSpan; } - if (typeof rowSpan === 'number') { node.rowSpan = rowSpan; } - } - break; - } - if (hasStyle) { - const {style} = content; - if (typeof style === 'object' && style !== null) { - this._setStructuredContentElementStyle(node, style); - } - } - if (hasChildren) { - const child = this.createStructuredContent(content.content, dictionary); - if (child !== null) { node.appendChild(child); } - } - return node; - } - - _setStructuredContentElementStyle(node, contentStyle) { - const {style} = node; - const {fontStyle, fontWeight, fontSize, textDecorationLine, verticalAlign} = contentStyle; - if (typeof fontStyle === 'string') { style.fontStyle = fontStyle; } - if (typeof fontWeight === 'string') { style.fontWeight = fontWeight; } - if (typeof fontSize === 'string') { style.fontSize = fontSize; } - if (typeof verticalAlign === 'string') { style.verticalAlign = verticalAlign; } - if (typeof textDecorationLine === 'string') { - style.textDecoration = textDecorationLine; - } else if (Array.isArray(textDecorationLine)) { - style.textDecoration = textDecorationLine.join(' '); - } - } -} |