mirror of https://github.com/gorhill/uBlock.git
295 lines
8.7 KiB
JavaScript
295 lines
8.7 KiB
JavaScript
/*******************************************************************************
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uBlock Origin - a comprehensive, efficient content blocker
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Copyright (C) 2014-2015 The uBlock Origin authors
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Copyright (C) 2014-present Raymond Hill
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see {http://www.gnu.org/licenses/}.
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Home: https://github.com/gorhill/uBlock
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*/
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// For background page or non-background pages
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/* global browser */
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'use strict';
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/******************************************************************************/
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/******************************************************************************/
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vAPI.T0 = Date.now();
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/******************************************************************************/
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vAPI.setTimeout = vAPI.setTimeout || self.setTimeout.bind(self);
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vAPI.defer = {
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create(callback) {
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return new this.Client(callback);
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},
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once(delay, ...args) {
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const delayInMs = vAPI.defer.normalizeDelay(delay);
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return new Promise(resolve => {
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vAPI.setTimeout(
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(...args) => { resolve(...args); },
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delayInMs,
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...args
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);
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});
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},
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Client: class {
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constructor(callback) {
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this.timer = null;
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this.type = 0;
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this.callback = callback;
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}
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on(delay, ...args) {
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if ( this.timer !== null ) { return; }
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const delayInMs = vAPI.defer.normalizeDelay(delay);
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this.type = 0;
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this.timer = vAPI.setTimeout(( ) => {
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this.timer = null;
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this.callback(...args);
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}, delayInMs || 1);
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}
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offon(delay, ...args) {
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this.off();
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this.on(delay, ...args);
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}
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onvsync(delay, ...args) {
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if ( this.timer !== null ) { return; }
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const delayInMs = vAPI.defer.normalizeDelay(delay);
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if ( delayInMs !== 0 ) {
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this.type = 0;
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this.timer = vAPI.setTimeout(( ) => {
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this.timer = null;
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this.onraf(...args);
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}, delayInMs);
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} else {
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this.onraf(...args);
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}
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}
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onidle(delay, options, ...args) {
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if ( this.timer !== null ) { return; }
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const delayInMs = vAPI.defer.normalizeDelay(delay);
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if ( delayInMs !== 0 ) {
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this.type = 0;
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this.timer = vAPI.setTimeout(( ) => {
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this.timer = null;
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this.onric(options, ...args);
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}, delayInMs);
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} else {
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this.onric(options, ...args);
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}
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}
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off() {
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if ( this.timer === null ) { return; }
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switch ( this.type ) {
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case 0:
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self.clearTimeout(this.timer);
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break;
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case 1:
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self.cancelAnimationFrame(this.timer);
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break;
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case 2:
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self.cancelIdleCallback(this.timer);
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break;
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default:
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break;
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}
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this.timer = null;
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}
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onraf(...args) {
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if ( this.timer !== null ) { return; }
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this.type = 1;
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this.timer = requestAnimationFrame(( ) => {
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this.timer = null;
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this.callback(...args);
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});
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}
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onric(options, ...args) {
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if ( this.timer !== null ) { return; }
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this.type = 2;
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this.timer = self.requestIdleCallback(deadline => {
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this.timer = null;
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this.callback(deadline, ...args);
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}, options);
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}
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ongoing() {
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return this.timer !== null;
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}
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},
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normalizeDelay(delay = 0) {
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if ( typeof delay === 'object' ) {
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if ( delay.sec !== undefined ) {
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return delay.sec * 1000;
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} else if ( delay.min !== undefined ) {
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return delay.min * 60000;
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} else if ( delay.hr !== undefined ) {
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return delay.hr * 3600000;
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}
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}
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return delay;
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}
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};
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/******************************************************************************/
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vAPI.webextFlavor = {
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major: 0,
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soup: new Set(),
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get env() {
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return Array.from(this.soup);
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}
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};
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// https://bugzilla.mozilla.org/show_bug.cgi?id=1858743
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// Add support for native `:has()` for Firefox 121+
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(( ) => {
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const ua = navigator.userAgent;
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const flavor = vAPI.webextFlavor;
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const soup = flavor.soup;
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const dispatch = function() {
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window.dispatchEvent(new CustomEvent('webextFlavor'));
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};
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// This is always true.
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soup.add('ublock').add('webext');
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// Whether this is a dev build.
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if ( /^\d+\.\d+\.\d+\D/.test(browser.runtime.getManifest().version) ) {
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soup.add('devbuild');
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}
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if ( /\bMobile\b/.test(ua) ) {
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soup.add('mobile');
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}
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if ( CSS.supports('selector(a:has(b))') ) {
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soup.add('native_css_has');
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}
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// Order of tests is important
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if ( browser.runtime.getURL('').startsWith('moz-extension://') ) {
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soup.add('firefox')
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.add('user_stylesheet')
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.add('html_filtering');
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const match = /Firefox\/(\d+)/.exec(ua);
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flavor.major = match && parseInt(match[1], 10) || 115;
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} else {
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const match = /\bChrom(?:e|ium)\/(\d+)/.exec(ua);
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if ( match !== null ) {
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soup.add('chromium')
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.add('user_stylesheet');
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}
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flavor.major = match && parseInt(match[1], 10) || 120;
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}
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// Don't starve potential listeners
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vAPI.setTimeout(dispatch, 97);
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})();
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/******************************************************************************/
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vAPI.download = function(details) {
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if ( !details.url ) { return; }
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const a = document.createElement('a');
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a.href = details.url;
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a.setAttribute('download', details.filename || '');
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a.setAttribute('type', 'text/plain');
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a.dispatchEvent(new MouseEvent('click'));
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};
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/******************************************************************************/
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vAPI.getURL = browser.runtime.getURL;
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/******************************************************************************/
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// https://github.com/gorhill/uBlock/issues/3057
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// - webNavigation.onCreatedNavigationTarget become broken on Firefox when we
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// try to make the popup panel close itself using the original
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// `window.open('', '_self').close()`.
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vAPI.closePopup = function() {
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if ( vAPI.webextFlavor.soup.has('firefox') ) {
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window.close();
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return;
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}
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// TODO: try to figure why this was used instead of a plain window.close().
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// https://github.com/gorhill/uBlock/commit/b301ac031e0c2e9a99cb6f8953319d44e22f33d2#diff-bc664f26b9c453e0d43a9379e8135c6a
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window.open('', '_self').close();
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};
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/******************************************************************************/
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// A localStorage-like object which should be accessible from the
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// background page or auxiliary pages.
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//
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// https://github.com/uBlockOrigin/uBlock-issues/issues/899
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// Convert into asynchronous access API.
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vAPI.localStorage = {
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clear: function() {
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vAPI.messaging.send('vapi', {
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what: 'localStorage',
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fn: 'clear',
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});
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},
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getItemAsync: function(key) {
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return vAPI.messaging.send('vapi', {
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what: 'localStorage',
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fn: 'getItemAsync',
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args: [ key ],
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});
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},
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removeItem: function(key) {
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return vAPI.messaging.send('vapi', {
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what: 'localStorage',
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fn: 'removeItem',
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args: [ key ],
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});
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},
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setItem: function(key, value = undefined) {
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return vAPI.messaging.send('vapi', {
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what: 'localStorage',
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fn: 'setItem',
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args: [ key, value ]
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});
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},
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};
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/*******************************************************************************
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DO NOT:
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- Remove the following code
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- Add code beyond the following code
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Reason:
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- https://github.com/gorhill/uBlock/pull/3721
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- uBO never uses the return value from injected content scripts
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**/
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void 0;
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