yomichan/ext/bg/js/backend.js
2019-09-10 20:09:33 -04:00

190 lines
6.0 KiB
JavaScript

/*
* Copyright (C) 2016-2017 Alex Yatskov <alex@foosoft.net>
* 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/>.
*/
class Backend {
constructor() {
this.translator = new Translator();
this.anki = new AnkiNull();
this.options = null;
this.optionsContext = {
depth: 0
};
this.isPreparedResolve = null;
this.isPreparedPromise = new Promise((resolve) => (this.isPreparedResolve = resolve));
this.apiForwarder = new BackendApiForwarder();
}
async prepare() {
await this.translator.prepare();
this.onOptionsUpdated(await optionsLoad());
if (chrome.commands !== null && typeof chrome.commands === 'object') {
chrome.commands.onCommand.addListener(this.onCommand.bind(this));
}
chrome.runtime.onMessage.addListener(this.onMessage.bind(this));
const options = this.getOptionsSync(this.optionsContext);
if (options.general.showGuide) {
chrome.tabs.create({url: chrome.extension.getURL('/bg/guide.html')});
}
this.isPreparedResolve();
this.isPreparedResolve = null;
this.isPreparedPromise = null;
}
onOptionsUpdated(options) {
this.options = utilIsolate(options);
this.applyOptions();
const callback = () => this.checkLastError(chrome.runtime.lastError);
chrome.tabs.query({}, tabs => {
for (const tab of tabs) {
chrome.tabs.sendMessage(tab.id, {action: 'optionsUpdate', params: {}}, callback);
}
});
}
onCommand(command) {
apiCommandExec(command);
}
onMessage({action, params}, sender, callback) {
const forward = (promise, callback) => {
return promise.then(result => {
callback({result});
}).catch(error => {
callback({error: error.toString ? error.toString() : error});
});
};
const handlers = {
optionsGet: ({optionsContext, callback}) => {
forward(apiOptionsGet(optionsContext), callback);
},
kanjiFind: ({text, optionsContext, callback}) => {
forward(apiKanjiFind(text, optionsContext), callback);
},
termsFind: ({text, optionsContext, callback}) => {
forward(apiTermsFind(text, optionsContext), callback);
},
definitionAdd: ({definition, mode, context, optionsContext, callback}) => {
forward(apiDefinitionAdd(definition, mode, context, optionsContext), callback);
},
definitionsAddable: ({definitions, modes, optionsContext, callback}) => {
forward(apiDefinitionsAddable(definitions, modes, optionsContext), callback);
},
noteView: ({noteId}) => {
forward(apiNoteView(noteId), callback);
},
templateRender: ({template, data, dynamic, callback}) => {
forward(apiTemplateRender(template, data, dynamic), callback);
},
commandExec: ({command, callback}) => {
forward(apiCommandExec(command), callback);
},
audioGetUrl: ({definition, source, callback}) => {
forward(apiAudioGetUrl(definition, source), callback);
},
screenshotGet: ({options}) => {
forward(apiScreenshotGet(options, sender), callback);
},
forward: ({action, params}) => {
forward(apiForward(action, params, sender), callback);
},
frameInformationGet: () => {
forward(apiFrameInformationGet(sender), callback);
}
};
const handler = handlers[action];
if (handler) {
params.callback = callback;
handler(params);
}
return true;
}
applyOptions() {
const options = this.getOptionsSync(this.optionsContext);
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();
}
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) {
return this.options;
}
setExtensionBadgeBackgroundColor(color) {
if (typeof chrome.browserAction.setBadgeBackgroundColor === 'function') {
chrome.browserAction.setBadgeBackgroundColor({color});
}
}
setExtensionBadgeText(text) {
if (typeof chrome.browserAction.setBadgeText === 'function') {
chrome.browserAction.setBadgeText({text});
}
}
checkLastError(e) {
// NOP
}
}
window.yomichan_backend = new Backend();
window.yomichan_backend.prepare();