Move apiCommandExec implementation into Backend
This commit is contained in:
toasted-nutbread
parent
f07207c9bf
commit
f63220b6c5
134
ext/bg/js/api.js
134
ext/bg/js/api.js
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@ -65,58 +65,9 @@ function apiTemplateRender(template, data, dynamic) {
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return utilBackend()._onApiTemplateRender({template, data, dynamic});
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}
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async function apiCommandExec(command, params) {
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const handlers = apiCommandExec.handlers;
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if (hasOwn(handlers, command)) {
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const handler = handlers[command];
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handler(params);
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}
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function apiCommandExec(command, params) {
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return utilBackend()._onApiCommandExec({command, params});
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}
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apiCommandExec.handlers = {
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search: async (params) => {
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const url = chrome.runtime.getURL('/bg/search.html');
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if (!(params && params.newTab)) {
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try {
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const tab = await _apiFindTab(1000, (url2) => (
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url2 !== null &&
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url2.startsWith(url) &&
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(url2.length === url.length || url2[url.length] === '?' || url2[url.length] === '#')
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));
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if (tab !== null) {
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await _apiFocusTab(tab);
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return;
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}
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} catch (e) {
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// NOP
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}
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}
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chrome.tabs.create({url});
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},
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help: () => {
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chrome.tabs.create({url: 'https://foosoft.net/projects/yomichan/'});
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},
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options: (params) => {
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if (!(params && params.newTab)) {
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chrome.runtime.openOptionsPage();
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} else {
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const manifest = chrome.runtime.getManifest();
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const url = chrome.runtime.getURL(manifest.options_ui.page);
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chrome.tabs.create({url});
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}
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},
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toggle: async () => {
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const optionsContext = {
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depth: 0,
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url: window.location.href
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};
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const options = await apiOptionsGet(optionsContext);
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options.general.enable = !options.general.enable;
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await apiOptionsSave('popup');
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}
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};
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async function apiAudioGetUrl(definition, source, optionsContext) {
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return audioGetUrl(definition, source, optionsContext);
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@ -208,87 +159,6 @@ async function _apiGetBrowser() {
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}
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}
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function _apiGetTabUrl(tab) {
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return new Promise((resolve) => {
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chrome.tabs.sendMessage(tab.id, {action: 'getUrl'}, {frameId: 0}, (response) => {
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let url = null;
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if (!chrome.runtime.lastError) {
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url = (response !== null && typeof response === 'object' && !Array.isArray(response) ? response.url : null);
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if (url !== null && typeof url !== 'string') {
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url = null;
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}
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}
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resolve({tab, url});
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});
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});
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}
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async function _apiFindTab(timeout, checkUrl) {
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// This function works around the need to have the "tabs" permission to access tab.url.
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const tabs = await new Promise((resolve) => chrome.tabs.query({}, resolve));
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let matchPromiseResolve = null;
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const matchPromise = new Promise((resolve) => { matchPromiseResolve = resolve; });
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const checkTabUrl = ({tab, url}) => {
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if (checkUrl(url, tab)) {
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matchPromiseResolve(tab);
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}
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};
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const promises = [];
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for (const tab of tabs) {
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const promise = _apiGetTabUrl(tab);
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promise.then(checkTabUrl);
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promises.push(promise);
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}
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const racePromises = [
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matchPromise,
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Promise.all(promises).then(() => null)
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];
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if (typeof timeout === 'number') {
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racePromises.push(new Promise((resolve) => setTimeout(() => resolve(null), timeout)));
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}
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return await Promise.race(racePromises);
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}
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async function _apiFocusTab(tab) {
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await new Promise((resolve, reject) => {
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chrome.tabs.update(tab.id, {active: true}, () => {
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const e = chrome.runtime.lastError;
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if (e) { reject(e); }
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else { resolve(); }
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});
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});
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if (!(typeof chrome.windows === 'object' && chrome.windows !== null)) {
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// Windows not supported (e.g. on Firefox mobile)
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return;
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}
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try {
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const tabWindow = await new Promise((resolve) => {
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chrome.windows.get(tab.windowId, {}, (tabWindow) => {
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const e = chrome.runtime.lastError;
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if (e) { reject(e); }
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else { resolve(tabWindow); }
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});
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});
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if (!tabWindow.focused) {
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await new Promise((resolve, reject) => {
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chrome.windows.update(tab.windowId, {focused: true}, () => {
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const e = chrome.runtime.lastError;
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if (e) { reject(e); }
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else { resolve(); }
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});
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});
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}
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} catch (e) {
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// Edge throws exception for no reason here.
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}
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}
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async function apiClipboardGet() {
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const clipboardPasteTarget = utilBackend().clipboardPasteTarget;
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clipboardPasteTarget.innerText = '';
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@ -397,8 +397,11 @@ class Backend {
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);
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}
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_onApiCommandExec({command, params}) {
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return apiCommandExec(command, params);
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async _onApiCommandExec({command, params}) {
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const handler = Backend._commandHandlers.get(command);
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if (typeof handler !== 'function') { return false; }
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handler(this, params);
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}
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_onApiAudioGetUrl({definition, source, optionsContext}) {
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@ -429,6 +432,54 @@ class Backend {
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return apiClipboardGet();
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}
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// Command handlers
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async _onCommandSearch(params) {
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const url = chrome.runtime.getURL('/bg/search.html');
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if (!(params && params.newTab)) {
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try {
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const tab = await Backend._findTab(1000, (url2) => (
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url2 !== null &&
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url2.startsWith(url) &&
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(url2.length === url.length || url2[url.length] === '?' || url2[url.length] === '#')
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));
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if (tab !== null) {
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await Backend._focusTab(tab);
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return;
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}
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} catch (e) {
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// NOP
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}
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}
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chrome.tabs.create({url});
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}
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_onCommandHelp() {
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chrome.tabs.create({url: 'https://foosoft.net/projects/yomichan/'});
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}
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_onCommandOptions(params) {
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if (!(params && params.newTab)) {
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chrome.runtime.openOptionsPage();
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} else {
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const manifest = chrome.runtime.getManifest();
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const url = chrome.runtime.getURL(manifest.options_ui.page);
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chrome.tabs.create({url});
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}
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}
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async _onCommandToggle() {
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const optionsContext = {
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depth: 0,
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url: window.location.href
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};
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const source = 'popup';
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const options = await this.getOptions(optionsContext);
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options.general.enable = !options.general.enable;
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await this._optionsSave({source});
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}
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// Utilities
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async _injectScreenshot(definition, fields, screenshot) {
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@ -466,6 +517,87 @@ class Backend {
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definition.screenshotFileName = filename;
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}
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static _getTabUrl(tab) {
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return new Promise((resolve) => {
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chrome.tabs.sendMessage(tab.id, {action: 'getUrl'}, {frameId: 0}, (response) => {
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let url = null;
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if (!chrome.runtime.lastError) {
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url = (response !== null && typeof response === 'object' && !Array.isArray(response) ? response.url : null);
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if (url !== null && typeof url !== 'string') {
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url = null;
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}
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}
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resolve({tab, url});
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});
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});
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}
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static async _findTab(timeout, checkUrl) {
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// This function works around the need to have the "tabs" permission to access tab.url.
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const tabs = await new Promise((resolve) => chrome.tabs.query({}, resolve));
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let matchPromiseResolve = null;
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const matchPromise = new Promise((resolve) => { matchPromiseResolve = resolve; });
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const checkTabUrl = ({tab, url}) => {
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if (checkUrl(url, tab)) {
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matchPromiseResolve(tab);
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}
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};
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const promises = [];
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for (const tab of tabs) {
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const promise = Backend._getTabUrl(tab);
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promise.then(checkTabUrl);
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promises.push(promise);
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}
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const racePromises = [
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matchPromise,
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Promise.all(promises).then(() => null)
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];
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if (typeof timeout === 'number') {
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racePromises.push(new Promise((resolve) => setTimeout(() => resolve(null), timeout)));
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}
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return await Promise.race(racePromises);
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}
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static async _focusTab(tab) {
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await new Promise((resolve, reject) => {
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chrome.tabs.update(tab.id, {active: true}, () => {
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const e = chrome.runtime.lastError;
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if (e) { reject(e); }
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else { resolve(); }
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});
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});
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if (!(typeof chrome.windows === 'object' && chrome.windows !== null)) {
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// Windows not supported (e.g. on Firefox mobile)
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return;
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}
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try {
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const tabWindow = await new Promise((resolve) => {
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chrome.windows.get(tab.windowId, {}, (tabWindow) => {
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const e = chrome.runtime.lastError;
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if (e) { reject(e); }
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else { resolve(tabWindow); }
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});
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});
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if (!tabWindow.focused) {
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await new Promise((resolve, reject) => {
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chrome.windows.update(tab.windowId, {focused: true}, () => {
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const e = chrome.runtime.lastError;
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if (e) { reject(e); }
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else { resolve(); }
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});
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});
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}
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} catch (e) {
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// Edge throws exception for no reason here.
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}
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}
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}
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Backend._messageHandlers = new Map([
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@ -491,5 +623,12 @@ Backend._messageHandlers = new Map([
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['clipboardGet', (self, ...args) => self._onApiClipboardGet(...args)]
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]);
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Backend._commandHandlers = new Map([
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['search', (self, ...args) => self._onCommandSearch(...args)],
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['help', (self, ...args) => self._onCommandHelp(...args)],
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['options', (self, ...args) => self._onCommandOptions(...args)],
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['toggle', (self, ...args) => self._onCommandToggle(...args)]
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]);
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window.yomichan_backend = new Backend();
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window.yomichan_backend.prepare();
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