Something went wrong. Try again.
Pop-up dictionary browser extension for language learning. Successor to Yomichan. (PERSONAL FORK)
Something went wrong. Try again.
4.5 kB · 124 lines
JavaScript
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125/* * Copyright (C) 2023-2025 Yomitan Authors * Copyright (C) 2021-2022 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/>. */
import {isContentScriptRegistered, registerContentScript, unregisterContentScript} from '../background/script-manager.js';import {log} from '../core/log.js';
/** * This class controls the registration of accessibility handlers. */export class AccessibilityController { constructor() { /** @type {?import('core').TokenObject} */ this._updateGoogleDocsAccessibilityToken = null; /** @type {?Promise<void>} */ this._updateGoogleDocsAccessibilityPromise = null; /** @type {boolean} */ this._forceGoogleDocsHtmlRenderingAny = false; }
/** * Updates the accessibility handlers. * @param {import('settings').Options} fullOptions The full options object from the `Backend` instance. * The value is treated as read-only and is not modified. */ async update(fullOptions) { let forceGoogleDocsHtmlRenderingAny = false; for (const {options} of fullOptions.profiles) { if (options.accessibility.forceGoogleDocsHtmlRendering) { forceGoogleDocsHtmlRenderingAny = true; break; } }
await this._updateGoogleDocsAccessibility(forceGoogleDocsHtmlRenderingAny); }
// Private
/** * @param {boolean} forceGoogleDocsHtmlRenderingAny */ async _updateGoogleDocsAccessibility(forceGoogleDocsHtmlRenderingAny) { // Reentrant token /** @type {?import('core').TokenObject} */ const token = {}; this._updateGoogleDocsAccessibilityToken = token;
// Wait for previous let promise = this._updateGoogleDocsAccessibilityPromise; if (promise !== null) { await promise; }
// Reentrant check if (this._updateGoogleDocsAccessibilityToken !== token) { return; }
// Update promise = this._updateGoogleDocsAccessibilityInner(forceGoogleDocsHtmlRenderingAny); this._updateGoogleDocsAccessibilityPromise = promise; await promise; this._updateGoogleDocsAccessibilityPromise = null; }
/** * @param {boolean} forceGoogleDocsHtmlRenderingAny */ async _updateGoogleDocsAccessibilityInner(forceGoogleDocsHtmlRenderingAny) { if (this._forceGoogleDocsHtmlRenderingAny === forceGoogleDocsHtmlRenderingAny) { return; }
this._forceGoogleDocsHtmlRenderingAny = forceGoogleDocsHtmlRenderingAny;
const id = 'googleDocsAccessibility'; try { if (forceGoogleDocsHtmlRenderingAny) { if (await isContentScriptRegistered(id)) { return; } try { await this._registerGoogleDocsContentScript(id, false); } catch (e) { // Firefox doesn't support `world` field and will throw an error. // In this case, use the xray vision version. await this._registerGoogleDocsContentScript(id, true); } } else { await unregisterContentScript(id); } } catch (e) { log.error(e); } }
/** * @param {string} id * @param {boolean} xray * @returns {Promise<void>} */ _registerGoogleDocsContentScript(id, xray) { /** @type {import('script-manager').RegistrationDetails} */ const details = { allFrames: true, matches: ['*://docs.google.com/*'], runAt: 'document_start', js: [ xray ? 'js/accessibility/google-docs-xray.js' : 'js/accessibility/google-docs.js', ], }; if (!xray) { details.world = 'MAIN'; } return registerContentScript(id, details); }}