yomichan/ext/bg/js/backend.js
2019-11-26 22:06:27 -05:00

208 lines
7.4 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.mecab = new Mecab();
this.options = null;
this.optionsContext = {
depth: 0,
url: window.location.href
};
this.isPreparedResolve = null;
this.isPreparedPromise = new Promise((resolve) => (this.isPreparedResolve = resolve));
this.clipboardPasteTarget = document.querySelector('#clipboard-paste-target');
this.apiForwarder = new BackendApiForwarder();
}
async prepare() {
await this.translator.prepare();
this.options = await optionsLoad();
this.onOptionsUpdated('background');
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.runtime.getURL('/bg/guide.html')});
}
this.isPreparedResolve();
this.isPreparedResolve = null;
this.isPreparedPromise = null;
}
onOptionsUpdated(source) {
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: {source}}, callback);
}
});
}
onCommand(command) {
apiCommandExec(command);
}
onMessage({action, params}, sender, callback) {
const handlers = Backend.messageHandlers;
if (hasOwn(handlers, action)) {
const handler = handlers[action];
const promise = handler(params, sender);
promise.then(
(result) => callback({result}),
(error) => callback({error: errorToJson(error)})
);
}
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();
if (options.parsing.enableMecabParser) {
this.mecab.startListener();
} else {
this.mecab.stopListener();
}
}
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.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;
}
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() {
// NOP
}
}
Backend.messageHandlers = {
optionsGet: ({optionsContext}) => apiOptionsGet(optionsContext),
optionsSet: ({changedOptions, optionsContext, source}) => apiOptionsSet(changedOptions, optionsContext, source),
kanjiFind: ({text, optionsContext}) => apiKanjiFind(text, optionsContext),
termsFind: ({text, details, optionsContext}) => apiTermsFind(text, details, optionsContext),
textParse: ({text, optionsContext}) => apiTextParse(text, optionsContext),
textParseMecab: ({text, optionsContext}) => apiTextParseMecab(text, optionsContext),
definitionAdd: ({definition, mode, context, optionsContext}) => apiDefinitionAdd(definition, mode, context, optionsContext),
definitionsAddable: ({definitions, modes, optionsContext}) => apiDefinitionsAddable(definitions, modes, optionsContext),
noteView: ({noteId}) => apiNoteView(noteId),
templateRender: ({template, data, dynamic}) => apiTemplateRender(template, data, dynamic),
commandExec: ({command, params}) => apiCommandExec(command, params),
audioGetUrl: ({definition, source, optionsContext}) => apiAudioGetUrl(definition, source, optionsContext),
screenshotGet: ({options}, sender) => apiScreenshotGet(options, sender),
forward: ({action, params}, sender) => apiForward(action, params, sender),
frameInformationGet: (params, sender) => apiFrameInformationGet(sender),
injectStylesheet: ({css}, sender) => apiInjectStylesheet(css, sender),
getEnvironmentInfo: () => apiGetEnvironmentInfo(),
clipboardGet: () => apiClipboardGet()
};
window.yomichan_backend = new Backend();
window.yomichan_backend.prepare();