yomichan/ext/bg/yomichan.js

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/*
* Copyright (C) 2016 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 Yomichan {
constructor() {
this.translator = new Translator();
this.res = {
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rules: 'bg/data/rules.json',
edict: 'bg/data/edict.json',
enamdict: 'bg/data/enamdict.json',
kanjidic: 'bg/data/kanjidic.json'
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};
this.updateState('disabled');
chrome.runtime.onMessage.addListener(this.onMessage.bind(this));
chrome.browserAction.onClicked.addListener(this.onBrowserAction.bind(this));
}
onMessage(request, sender, callback) {
const {action, data} = request;
const handler = {
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findKanji: ({text}) => this.translator.onFindKanji(text),
findTerm: ({text}) => this.translator.findTerm(text),
getState: () => this.state
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}[action];
if (handler !== null) {
const result = handler.call(this, data);
if (callback !== null) {
callback(result);
}
}
}
onBrowserAction(tab) {
switch (this.state) {
case 'disabled':
this.updateState('loading');
break;
case 'enabled':
this.updateState('disabled');
break;
}
}
updateState(state) {
this.state = state;
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switch (state) {
case 'disabled':
chrome.browserAction.setBadgeText({text: ''});
break;
case 'enabled':
chrome.browserAction.setBadgeText({text: 'on'});
break;
case 'loading':
chrome.browserAction.setBadgeText({text: '...'});
this.translator.loadData(this.res, () => this.updateState('enabled'));
break;
}
chrome.tabs.query({}, (tabs) => {
for (const tab of tabs) {
chrome.tabs.sendMessage(tab.id, this.state, () => null);
}
});
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}
}
window.yomichan = new Yomichan();