yomichan/ext/bg/js/backend.js

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/*
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* Copyright (C) 2016-2017 Alex Yatskov <alex@foosoft.net>
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* Author: Alex Yatskov <alex@foosoft.net>
*
* 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 <http://www.gnu.org/licenses/>.
*/
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class Backend {
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constructor() {
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this.translator = new Translator();
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this.anki = new AnkiNull();
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this.mecab = new Mecab();
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this.options = null;
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this.optionsContext = {
depth: 0,
url: window.location.href
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};
this.isPreparedResolve = null;
this.isPreparedPromise = new Promise((resolve) => (this.isPreparedResolve = resolve));
this.clipboardPasteTarget = document.querySelector('#clipboard-paste-target');
this.apiForwarder = new BackendApiForwarder();
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}
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async prepare() {
await this.translator.prepare();
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this.options = await optionsLoad();
this.onOptionsUpdated('background');
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if (chrome.commands !== null && typeof chrome.commands === 'object') {
chrome.commands.onCommand.addListener(this.onCommand.bind(this));
}
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chrome.runtime.onMessage.addListener(this.onMessage.bind(this));
const options = this.getOptionsSync(this.optionsContext);
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if (options.general.showGuide) {
chrome.tabs.create({url: chrome.runtime.getURL('/bg/guide.html')});
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}
this.isPreparedResolve();
this.isPreparedResolve = null;
this.isPreparedPromise = null;
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}
onOptionsUpdated(source) {
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this.applyOptions();
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const callback = () => this.checkLastError(chrome.runtime.lastError);
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chrome.tabs.query({}, (tabs) => {
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for (const tab of tabs) {
chrome.tabs.sendMessage(tab.id, {action: 'optionsUpdate', params: {source}}, callback);
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}
});
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}
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onCommand(command) {
apiCommandExec(command);
}
onMessage({action, params}, sender, callback) {
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const handler = Backend._messageHandlers.get(action);
if (typeof handler !== 'function') { return false; }
try {
const promise = handler(this, params, sender);
promise.then(
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(result) => callback({result}),
(error) => callback({error: errorToJson(error)})
);
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return true;
} catch (error) {
callback({error: errorToJson(error)});
return false;
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}
}
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applyOptions() {
const options = this.getOptionsSync(this.optionsContext);
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if (!options.general.enable) {
this.setExtensionBadgeBackgroundColor('#555555');
this.setExtensionBadgeText('off');
} else if (!dictConfigured(options)) {
this.setExtensionBadgeBackgroundColor('#f0ad4e');
this.setExtensionBadgeText('!');
} else {
this.setExtensionBadgeText('');
}
this.anki = options.anki.enable ? new AnkiConnect(options.anki.server) : new AnkiNull();
if (options.parsing.enableMecabParser) {
this.mecab.startListener();
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} else {
this.mecab.stopListener();
}
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}
async getFullOptions() {
if (this.isPreparedPromise !== null) {
await this.isPreparedPromise;
}
return this.options;
}
async getOptions(optionsContext) {
if (this.isPreparedPromise !== null) {
await this.isPreparedPromise;
}
return this.getOptionsSync(optionsContext);
}
getOptionsSync(optionsContext) {
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return this.getProfileSync(optionsContext).options;
}
getProfileSync(optionsContext) {
const profiles = this.options.profiles;
if (typeof optionsContext.index === 'number') {
return profiles[optionsContext.index];
}
const profile = this.getProfileFromContext(optionsContext);
return profile !== null ? profile : this.options.profiles[this.options.profileCurrent];
}
getProfileFromContext(optionsContext) {
for (const profile of this.options.profiles) {
const conditionGroups = profile.conditionGroups;
if (conditionGroups.length > 0 && Backend.testConditionGroups(conditionGroups, optionsContext)) {
return profile;
}
}
return null;
}
static testConditionGroups(conditionGroups, data) {
if (conditionGroups.length === 0) { return false; }
for (const conditionGroup of conditionGroups) {
const conditions = conditionGroup.conditions;
if (conditions.length > 0 && Backend.testConditions(conditions, data)) {
return true;
}
}
return false;
}
static testConditions(conditions, data) {
for (const condition of conditions) {
if (!conditionsTestValue(profileConditionsDescriptor, condition.type, condition.operator, condition.value, data)) {
return false;
}
}
return true;
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}
setExtensionBadgeBackgroundColor(color) {
if (typeof chrome.browserAction.setBadgeBackgroundColor === 'function') {
chrome.browserAction.setBadgeBackgroundColor({color});
}
}
setExtensionBadgeText(text) {
if (typeof chrome.browserAction.setBadgeText === 'function') {
chrome.browserAction.setBadgeText({text});
}
}
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checkLastError() {
// NOP
}
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// Message handlers
_onApiOptionsGet({optionsContext}) {
return apiOptionsGet(optionsContext);
}
_onApiOptionsSet({changedOptions, optionsContext, source}) {
return apiOptionsSet(changedOptions, optionsContext, source);
}
_onApiKanjiFind({text, optionsContext}) {
return apiKanjiFind(text, optionsContext);
}
_onApiTermsFind({text, details, optionsContext}) {
return apiTermsFind(text, details, optionsContext);
}
_onApiTextParse({text, optionsContext}) {
return apiTextParse(text, optionsContext);
}
_onApiTextParseMecab({text, optionsContext}) {
return apiTextParseMecab(text, optionsContext);
}
_onApiDefinitionAdd({definition, mode, context, optionsContext}) {
return apiDefinitionAdd(definition, mode, context, optionsContext);
}
_onApiDefinitionsAddable({definitions, modes, optionsContext}) {
return apiDefinitionsAddable(definitions, modes, optionsContext);
}
_onApiNoteView({noteId}) {
return apiNoteView(noteId);
}
_onApiTemplateRender({template, data, dynamic}) {
return apiTemplateRender(template, data, dynamic);
}
_onApiCommandExec({command, params}) {
return apiCommandExec(command, params);
}
_onApiAudioGetUrl({definition, source, optionsContext}) {
return apiAudioGetUrl(definition, source, optionsContext);
}
_onApiScreenshotGet({options}, sender) {
return apiScreenshotGet(options, sender);
}
_onApiForward({action, params}, sender) {
return apiForward(action, params, sender);
}
_onApiFrameInformationGet(params, sender) {
return apiFrameInformationGet(sender);
}
_onApiInjectStylesheet({css}, sender) {
return apiInjectStylesheet(css, sender);
}
_onApiGetEnvironmentInfo() {
return apiGetEnvironmentInfo();
}
_onApiClipboardGet() {
return apiClipboardGet();
}
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}
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Backend._messageHandlers = new Map([
['optionsGet', (self, ...args) => self._onApiOptionsGet(...args)],
['optionsSet', (self, ...args) => self._onApiOptionsSet(...args)],
['kanjiFind', (self, ...args) => self._onApiKanjiFind(...args)],
['termsFind', (self, ...args) => self._onApiTermsFind(...args)],
['textParse', (self, ...args) => self._onApiTextParse(...args)],
['textParseMecab', (self, ...args) => self._onApiTextParseMecab(...args)],
['definitionAdd', (self, ...args) => self._onApiDefinitionAdd(...args)],
['definitionsAddable', (self, ...args) => self._onApiDefinitionsAddable(...args)],
['noteView', (self, ...args) => self._onApiNoteView(...args)],
['templateRender', (self, ...args) => self._onApiTemplateRender(...args)],
['commandExec', (self, ...args) => self._onApiCommandExec(...args)],
['audioGetUrl', (self, ...args) => self._onApiAudioGetUrl(...args)],
['screenshotGet', (self, ...args) => self._onApiScreenshotGet(...args)],
['forward', (self, ...args) => self._onApiForward(...args)],
['frameInformationGet', (self, ...args) => self._onApiFrameInformationGet(...args)],
['injectStylesheet', (self, ...args) => self._onApiInjectStylesheet(...args)],
['getEnvironmentInfo', (self, ...args) => self._onApiGetEnvironmentInfo(...args)],
['clipboardGet', (self, ...args) => self._onApiClipboardGet(...args)]
]);
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window.yomichan_backend = new Backend();
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window.yomichan_backend.prepare();