diff options
Diffstat (limited to 'ext/js/background/backend.js')
| -rw-r--r-- | ext/js/background/backend.js | 163 |
1 files changed, 54 insertions, 109 deletions
diff --git a/ext/js/background/backend.js b/ext/js/background/backend.js index e4186d02..bf4841f8 100644 --- a/ext/js/background/backend.js +++ b/ext/js/background/backend.js @@ -35,6 +35,7 @@ import {Translator} from '../language/translator.js'; import {AudioDownloader} from '../media/audio-downloader.js'; import {MediaUtil} from '../media/media-util.js'; import {yomitan} from '../yomitan.js'; +import {OffscreenProxy, DictionaryDatabaseProxy, TranslatorProxy, ClipboardReaderProxy} from './offscreen-proxy.js'; import {ProfileConditionsUtil} from './profile-conditions-util.js'; import {RequestBuilder} from './request-builder.js'; import {ScriptManager} from './script-manager.js'; @@ -50,15 +51,15 @@ export class Backend { constructor() { this._japaneseUtil = new JapaneseUtil(wanakana); this._environment = new Environment(); - this._dictionaryDatabase = new DictionaryDatabase(); - this._translator = new Translator({ - japaneseUtil: this._japaneseUtil, - database: this._dictionaryDatabase - }); this._anki = new AnkiConnect(); this._mecab = new Mecab(); if (!chrome.offscreen) { + this._dictionaryDatabase = new DictionaryDatabase(); + this._translator = new Translator({ + japaneseUtil: this._japaneseUtil, + database: this._dictionaryDatabase + }); this._clipboardReader = new ClipboardReader({ // eslint-disable-next-line no-undef document: (typeof document === 'object' && document !== null ? document : null), @@ -66,10 +67,10 @@ export class Backend { richContentPasteTargetSelector: '#clipboard-rich-content-paste-target' }); } else { - this._clipboardReader = { - getText: this._getTextOffscreen.bind(this), - getImage: this._getImageOffscreen.bind(this) - }; + this._offscreen = new OffscreenProxy(); + this._dictionaryDatabase = new DictionaryDatabaseProxy(this._offscreen); + this._translator = new TranslatorProxy(this._offscreen); + this._clipboardReader = new ClipboardReaderProxy(this._offscreen); } this._clipboardMonitor = new ClipboardMonitor({ @@ -106,8 +107,6 @@ export class Backend { this._permissions = null; this._permissionsUtil = new PermissionsUtil(); - this._creatingOffscreen = null; - this._messageHandlers = new Map([ ['requestBackendReadySignal', {async: false, contentScript: true, handler: this._onApiRequestBackendReadySignal.bind(this)}], ['optionsGet', {async: false, contentScript: true, handler: this._onApiOptionsGet.bind(this)}], @@ -230,7 +229,7 @@ export class Backend { await this._requestBuilder.prepare(); await this._environment.prepare(); if (chrome.offscreen) { - await this._setupOffscreenDocument(); + await this._offscreen.prepare(); } this._clipboardReader.browser = this._environment.getInfo().browser; @@ -754,6 +753,49 @@ export class Backend { } } + _onApiOpenCrossFramePort({targetTabId, targetFrameId}, sender) { + const sourceTabId = (sender && sender.tab ? sender.tab.id : null); + if (typeof sourceTabId !== 'number') { + throw new Error('Port does not have an associated tab ID'); + } + const sourceFrameId = sender.frameId; + if (typeof sourceFrameId !== 'number') { + throw new Error('Port does not have an associated frame ID'); + } + + const sourceDetails = { + name: 'cross-frame-communication-port', + otherTabId: targetTabId, + otherFrameId: targetFrameId + }; + const targetDetails = { + name: 'cross-frame-communication-port', + otherTabId: sourceTabId, + otherFrameId: sourceFrameId + }; + let sourcePort = chrome.tabs.connect(sourceTabId, {frameId: sourceFrameId, name: JSON.stringify(sourceDetails)}); + let targetPort = chrome.tabs.connect(targetTabId, {frameId: targetFrameId, name: JSON.stringify(targetDetails)}); + + const cleanup = () => { + this._checkLastError(chrome.runtime.lastError); + if (targetPort !== null) { + targetPort.disconnect(); + targetPort = null; + } + if (sourcePort !== null) { + sourcePort.disconnect(); + sourcePort = null; + } + }; + + sourcePort.onMessage.addListener((message) => { targetPort.postMessage(message); }); + targetPort.onMessage.addListener((message) => { sourcePort.postMessage(message); }); + sourcePort.onDisconnect.addListener(cleanup); + targetPort.onDisconnect.addListener(cleanup); + + return {targetTabId, targetFrameId}; + } + // Command handlers async _onCommandOpenSearchPage(params) { @@ -1624,20 +1666,6 @@ export class Backend { return await (json ? response.json() : response.text()); } - _sendMessagePromise(...args) { - return new Promise((resolve, reject) => { - const callback = (response) => { - try { - resolve(this._getMessageResponseResult(response)); - } catch (error) { - reject(error); - } - }; - - chrome.runtime.sendMessage(...args, callback); - }); - } - _sendMessageIgnoreResponse(...args) { const callback = () => this._checkLastError(chrome.runtime.lastError); chrome.runtime.sendMessage(...args, callback); @@ -2239,87 +2267,4 @@ export class Backend { } return results; } - - async _getTextOffscreen(useRichText) { - return this._sendMessagePromise({action: 'clipboardGetTextOffscreen', params: {useRichText}}); - } - - async _getImageOffscreen() { - return this._sendMessagePromise({action: 'clipboardGetImageOffscreen'}); - } - - _onApiOpenCrossFramePort({targetTabId, targetFrameId}, sender) { - const sourceTabId = (sender && sender.tab ? sender.tab.id : null); - if (typeof sourceTabId !== 'number') { - throw new Error('Port does not have an associated tab ID'); - } - const sourceFrameId = sender.frameId; - if (typeof sourceFrameId !== 'number') { - throw new Error('Port does not have an associated frame ID'); - } - - const sourceDetails = { - name: 'cross-frame-communication-port', - otherTabId: targetTabId, - otherFrameId: targetFrameId - }; - const targetDetails = { - name: 'cross-frame-communication-port', - otherTabId: sourceTabId, - otherFrameId: sourceFrameId - }; - let sourcePort = chrome.tabs.connect(sourceTabId, {frameId: sourceFrameId, name: JSON.stringify(sourceDetails)}); - let targetPort = chrome.tabs.connect(targetTabId, {frameId: targetFrameId, name: JSON.stringify(targetDetails)}); - - const cleanup = () => { - this._checkLastError(chrome.runtime.lastError); - if (targetPort !== null) { - targetPort.disconnect(); - targetPort = null; - } - if (sourcePort !== null) { - sourcePort.disconnect(); - sourcePort = null; - } - }; - - sourcePort.onMessage.addListener((message) => { targetPort.postMessage(message); }); - targetPort.onMessage.addListener((message) => { sourcePort.postMessage(message); }); - sourcePort.onDisconnect.addListener(cleanup); - targetPort.onDisconnect.addListener(cleanup); - - return {targetTabId, targetFrameId}; - } - - // https://developer.chrome.com/docs/extensions/reference/offscreen/ - async _setupOffscreenDocument() { - if (await this._hasOffscreenDocument()) { - return; - } - if (this._creatingOffscreen) { - await this._creatingOffscreen; - return; - } - - this._creatingOffscreen = chrome.offscreen.createDocument({ - url: 'offscreen.html', - reasons: ['CLIPBOARD'], - justification: 'Access to the clipboard' - }); - await this._creatingOffscreen; - this._creatingOffscreen = null; - } - async _hasOffscreenDocument() { - const offscreenUrl = chrome.runtime.getURL('offscreen.html'); - if (!chrome.runtime.getContexts) { // chrome version <116 - const matchedClients = await clients.matchAll(); - return await matchedClients.some((client) => client.url === offscreenUrl); - } - - const contexts = await chrome.runtime.getContexts({ - contextTypes: ['OFFSCREEN_DOCUMENT'], - documentUrls: [offscreenUrl] - }); - return !!contexts.length; - } } |