mirror of https://github.com/gorhill/uBlock.git
795 lines
25 KiB
JavaScript
795 lines
25 KiB
JavaScript
/*******************************************************************************
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µBlock - a browser extension to block requests.
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Copyright (C) 2014 The µBlock authors
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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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/* global self, safari, SafariBrowserTab, µBlock */
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// For background page
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/******************************************************************************/
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(function() {
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'use strict';
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var vAPI = self.vAPI = self.vAPI || {};
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vAPI.safari = true;
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var noopFunc = function(){};
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/******************************************************************************/
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vAPI.app = {
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name: "µBlock",
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version: safari.extension.displayVersion
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};
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/******************************************************************************/
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vAPI.app.restart = function() {};
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/******************************************************************************/
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safari.extension.settings.addEventListener('change', function(e) {
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if(e.key === 'open_prefs') {
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vAPI.tabs.open({
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url: 'dashboard.html',
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active: true
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});
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}
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}, false);
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/******************************************************************************/
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vAPI.storage = {
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_storage: safari.extension.settings,
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QUOTA_BYTES: 52428800, // copied from Info.plist
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get: function(keys, callback) {
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if(typeof callback !== 'function') {
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return;
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}
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var i, value, result = {};
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if(keys === null) {
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for(i in this._storage) {
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value = this._storage[i];
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if(typeof value === 'string') {
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result[i] = JSON.parse(value);
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}
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}
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} else if(typeof keys === 'string') {
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value = this._storage[keys];
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if(typeof value === 'string') {
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result[keys] = JSON.parse(value);
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}
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} else if(Array.isArray(keys)) {
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for(i = 0; i < keys.length; i++) {
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value = this._storage[i];
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if(typeof value === 'string') {
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result[keys[i]] = JSON.parse(value);
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}
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}
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} else if(typeof keys === 'object') {
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for(i in keys) {
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value = this._storage[i];
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if(typeof value === 'string') {
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result[i] = JSON.parse(value);
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} else {
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result[i] = keys[i];
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}
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}
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}
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callback(result);
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},
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set: function(details, callback) {
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for(var key in details) {
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if(!details.hasOwnProperty(key)) {
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continue;
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}
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this._storage.setItem(key, JSON.stringify(details[key]));
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}
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if(typeof callback === 'function') {
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callback();
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}
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},
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remove: function(keys) {
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if(typeof keys === 'string') {
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keys = [keys];
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}
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for(var i = 0; i < keys.length; i++) {
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this._storage.removeItem(keys[i]);
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}
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},
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clear: function(callback) {
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this._storage.clear();
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callback();
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},
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getBytesInUse: function(keys, callback) {
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if(typeof callback !== 'function') {
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return;
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}
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var i;
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var size = 0;
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if(keys === null) {
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for(i in this._storage) {
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size += (this._storage[i] || '').length;
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}
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} else {
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if(typeof keys === 'string') {
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keys = [keys];
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}
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for(i = 0; i < keys.length; i++) {
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size += (this._storage[keys[i]] || '').length;
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}
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}
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callback(size);
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}
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};
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/******************************************************************************/
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vAPI.tabs = {
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stack: {},
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stackId: 1
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};
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/******************************************************************************/
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vAPI.isNoTabId = function(tabId) {
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return tabId.toString() === '-1';
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};
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vAPI.noTabId = '-1';
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/******************************************************************************/
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vAPI.tabs.registerListeners = function() {
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safari.application.addEventListener('beforeNavigate', function(e) {
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if(!vAPI.tabs.popupCandidate || !e.target || e.url === 'about:blank') {
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return;
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}
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var url = e.url,
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tabId = vAPI.tabs.getTabId(e.target);
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var details = {
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url: url,
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tabId: tabId,
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sourceTabId: vAPI.tabs.popupCandidate
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};
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vAPI.tabs.popupCandidate = false;
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if(vAPI.tabs.onPopup(details)) {
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e.preventDefault();
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if(vAPI.tabs.stack[details.sourceTabId]) {
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vAPI.tabs.stack[details.sourceTabId].activate();
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}
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}
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}, true);
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// onClosed handled in the main tab-close event
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// onUpdated handled via monitoring the history.pushState on web-pages
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// onPopup is handled in window.open on web-pages
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};
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/******************************************************************************/
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vAPI.tabs.getTabId = function(tab) {
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for(var i in vAPI.tabs.stack) {
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if(vAPI.tabs.stack[i] === tab) {
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return +i;
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}
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}
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return -1;
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};
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/******************************************************************************/
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vAPI.tabs.get = function(tabId, callback) {
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var tab;
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if(tabId === null) {
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tab = safari.application.activeBrowserWindow.activeTab;
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tabId = this.getTabId(tab);
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} else {
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tab = this.stack[tabId];
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}
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if(!tab) {
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callback();
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return;
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}
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callback({
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id: tabId,
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index: tab.browserWindow.tabs.indexOf(tab),
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windowId: safari.application.browserWindows.indexOf(tab.browserWindow),
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active: tab === tab.browserWindow.activeTab,
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url: tab.url,
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title: tab.title
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});
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};
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/******************************************************************************/
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// properties of the details object:
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// url: 'URL', // the address that will be opened
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// tabId: 1, // the tab is used if set, instead of creating a new one
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// index: -1, // undefined: end of the list, -1: following tab, or after index
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// active: false, // opens the tab in background - true and undefined: foreground
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// select: true // if a tab is already opened with that url, then select it instead of opening a new one
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vAPI.tabs.open = function(details) {
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if(!details.url) {
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return null;
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}
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// extension pages
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if(/^[\w-]{2,}:/.test(details.url) === false) {
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details.url = vAPI.getURL(details.url);
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}
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var curWin, tab;
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if(details.select) {
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tab = safari.application.browserWindows.some(function(win) {
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var rgxHash = /#.*/;
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// this is questionable
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var url = details.url.replace(rgxHash, '');
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for(var i = 0; i < win.tabs.length; i++) {
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if(win.tabs[i].url.replace(rgxHash, '') === url) {
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win.tabs[i].activate();
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return true;
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}
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}
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});
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if(tab) {
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return;
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}
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}
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if(details.active === undefined) {
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details.active = true;
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}
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curWin = safari.application.activeBrowserWindow;
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// it must be calculated before opening a new tab,
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// otherwise the new tab will be the active tab here
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if(details.index === -1) {
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details.index = curWin.tabs.indexOf(curWin.activeTab) + 1;
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}
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tab = details.tabId && this.stack[details.tabId] || curWin.openTab(details.active ? 'foreground' : 'background');
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if(details.index !== undefined) {
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curWin.insertTab(tab, details.index);
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}
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tab.url = details.url;
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};
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/******************************************************************************/
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vAPI.tabs.remove = function(tabIds) {
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if(tabIds instanceof SafariBrowserTab) {
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tabIds = this.getTabId(tabIds);
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}
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if(!Array.isArray(tabIds)) {
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tabIds = [tabIds];
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}
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for(var i = 0; i < tabIds.length; i++) {
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if(this.stack[tabIds[i]]) {
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this.stack[tabIds[i]].close();
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}
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}
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};
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/******************************************************************************/
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vAPI.tabs.reload = function(tabId) {
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var tab = this.stack[tabId];
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if(tab) {
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tab.url = tab.url;
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}
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};
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/******************************************************************************/
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vAPI.tabs.injectScript = function(tabId, details, callback) {
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var tab;
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if(tabId) {
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tab = this.stack[tabId];
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} else {
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tab = safari.application.activeBrowserWindow.activeTab;
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}
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if(details.file) {
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var xhr = new XMLHttpRequest();
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xhr.overrideMimeType('application/x-javascript;charset=utf-8');
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xhr.open('GET', details.file, false);
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xhr.send();
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details.code = xhr.responseText;
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}
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tab.page.dispatchMessage('broadcast', {
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channelName: 'vAPI',
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msg: {
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cmd: 'injectScript',
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details: details
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}
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});
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if(typeof callback === 'function') {
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setTimeout(callback, 13);
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}
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};
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/******************************************************************************/
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// bind tabs to unique IDs
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(function() {
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var wins = safari.application.browserWindows,
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i = wins.length,
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j;
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while(i--) {
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j = wins[i].tabs.length;
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while(j--) {
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vAPI.tabs.stack[vAPI.tabs.stackId++] = wins[i].tabs[j];
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}
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}
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})();
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/******************************************************************************/
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safari.application.addEventListener('open', function(e) {
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// ignore windows
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if(e.target instanceof SafariBrowserTab) {
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vAPI.tabs.stack[vAPI.tabs.stackId++] = e.target;
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}
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}, true);
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/******************************************************************************/
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safari.application.addEventListener('close', function(e) {
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// ignore windows
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if(!(e.target instanceof SafariBrowserTab)) {
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return;
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}
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var tabId = vAPI.tabs.getTabId(e.target);
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if(tabId !== -1) {
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// to not add another listener, put this here
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// instead of vAPI.tabs.registerListeners
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if(typeof vAPI.tabs.onClosed === 'function') {
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vAPI.tabs.onClosed(tabId);
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}
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delete vAPI.tabIcons[tabId];
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delete vAPI.tabs.stack[tabId];
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}
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}, true);
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/******************************************************************************/
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// update badge when tab is activated
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safari.application.addEventListener('activate', function(e) {
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// ignore windows
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if(!(e.target instanceof SafariBrowserTab)) {
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return;
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}
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// update the badge, when tab is selected
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vAPI.setIcon();
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}, true);
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/******************************************************************************/
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// reload the popup when that is opened
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safari.application.addEventListener('popover', function(e) {
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e.target.contentWindow.document.body.textContent = '';
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e.target.contentWindow.location.reload();
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}, true);
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/******************************************************************************/
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vAPI.tabIcons = { /*tabId: {badge: 0, img: suffix}*/ };
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vAPI.setIcon = function(tabId, iconStatus, badge) {
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var curTabId = vAPI.tabs.getTabId(
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safari.application.activeBrowserWindow.activeTab
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);
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// from 'activate' event
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if(tabId === undefined) {
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tabId = curTabId;
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} else {
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if(badge && /\D/.test(badge)) {
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badge = 999;
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}
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vAPI.tabIcons[tabId] = {
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badge: badge || 0,
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img: iconStatus === 'on' ? '' : '-off'
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};
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}
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if(tabId !== curTabId) {
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return;
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}
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// if the selected tab has the same ID, then update the badge too,
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// or always update it when changing tabs ('activate' event)
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var items = safari.extension.toolbarItems;
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var i = items.length;
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while(i--) {
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if(items[i].browserWindow === safari.application.activeBrowserWindow) {
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var icon = vAPI.tabIcons[tabId];
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items[i].badge = icon && icon.badge || 0;
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// TODO: a disabled icon for Safari
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// items[i].img = vAPI.getURL(icon.img);
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return;
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}
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}
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};
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/******************************************************************************/
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vAPI.messaging = {
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listeners: {},
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defaultHandler: null,
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NOOPFUNC: noopFunc,
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UNHANDLED: 'vAPI.messaging.notHandled'
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};
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/******************************************************************************/
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vAPI.messaging.listen = function(listenerName, callback) {
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this.listeners[listenerName] = callback;
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};
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/******************************************************************************/
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var CallbackWrapper = function(request, port) {
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// No need to bind every single time
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this.callback = this.proxy.bind(this);
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this.messaging = vAPI.messaging;
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this.init(request, port);
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};
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CallbackWrapper.junkyard = [];
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CallbackWrapper.factory = function(request, port) {
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var wrapper = CallbackWrapper.junkyard.pop();
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if(wrapper) {
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wrapper.init(request, port);
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return wrapper;
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}
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return new CallbackWrapper(request, port);
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};
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CallbackWrapper.prototype.init = function(request, port) {
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this.request = request;
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this.port = port;
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};
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CallbackWrapper.prototype.proxy = function(response) {
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this.port.dispatchMessage(this.request.name, {
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requestId: this.request.message.requestId,
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channelName: this.request.message.channelName,
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msg: response !== undefined ? response: null
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});
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this.port = this.request = null;
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CallbackWrapper.junkyard.push(this);
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};
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vAPI.messaging.onMessage = function(request) {
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var callback = vAPI.messaging.NOOPFUNC;
|
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if(request.message.requestId !== undefined) {
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callback = CallbackWrapper.factory(request, request.target.page).callback;
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}
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var sender = {
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tab: {
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id: vAPI.tabs.getTabId(request.target)
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}
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};
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// Specific handler
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var r = vAPI.messaging.UNHANDLED;
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var listener = vAPI.messaging.listeners[request.message.channelName];
|
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if(typeof listener === 'function') {
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r = listener(request.message.msg, sender, callback);
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}
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if(r !== vAPI.messaging.UNHANDLED) {
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return;
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}
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|
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// Default handler
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r = vAPI.messaging.defaultHandler(request.message.msg, sender, callback);
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if(r !== vAPI.messaging.UNHANDLED) {
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return;
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}
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console.error('µBlock> messaging > unknown request: %o', request.message);
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|
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// Unhandled:
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// Need to callback anyways in case caller expected an answer, or
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// else there is a memory leak on caller's side
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callback();
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};
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|
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/******************************************************************************/
|
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|
|
vAPI.messaging.setup = function(defaultHandler) {
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// Already setup?
|
|
if(this.defaultHandler !== null) {
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return;
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}
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|
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if(typeof defaultHandler !== 'function') {
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defaultHandler = function() {
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return vAPI.messaging.UNHANDLED;
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};
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}
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this.defaultHandler = defaultHandler;
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|
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// the third parameter must stay false (bubbling), so later
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// onBeforeRequest will use true (capturing), where we can invoke
|
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// stopPropagation() (this way this.onMessage won't be fired)
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safari.application.addEventListener('message', this.onMessage, false);
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};
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|
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/******************************************************************************/
|
|
|
|
vAPI.messaging.broadcast = function(message) {
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message = {
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broadcast: true,
|
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msg: message
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};
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|
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for(var tabId in vAPI.tabs.stack) {
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vAPI.tabs.stack[tabId].page.dispatchMessage('broadcast', message);
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}
|
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};
|
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|
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/******************************************************************************/
|
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|
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vAPI.net = {};
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|
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/******************************************************************************/
|
|
|
|
// Fast `contains`
|
|
|
|
Array.prototype.contains = function(a) {
|
|
var b = this.length;
|
|
while(b--) {
|
|
if(this[b] === a) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.net.registerListeners = function() {
|
|
var µb = µBlock;
|
|
|
|
// Until Safari has more specific events, those are instead handled
|
|
// in the onBeforeRequestAdapter; clean them up so they're garbage-collected
|
|
vAPI.net.onBeforeSendHeaders = null;
|
|
vAPI.net.onHeadersReceived = null;
|
|
|
|
var onBeforeRequest = vAPI.net.onBeforeRequest,
|
|
onBeforeRequestClient = onBeforeRequest.callback,
|
|
blockableTypes = onBeforeRequest.types;
|
|
|
|
var onBeforeRequestAdapter = function(e) {
|
|
if(e.name !== "canLoad") {
|
|
return;
|
|
}
|
|
e.stopPropagation && e.stopPropagation();
|
|
switch(e.message.type) {
|
|
case "isWhiteListed":
|
|
e.message = !µb.getNetFilteringSwitch(e.message.url);
|
|
break;
|
|
case "navigatedToNew":
|
|
vAPI.tabs.onNavigation({
|
|
url: e.message.url,
|
|
frameId: 0,
|
|
tabId: vAPI.tabs.getTabId(e.target)
|
|
});
|
|
break;
|
|
case "popup":
|
|
if(e.message.url === 'about:blank') {
|
|
vAPI.tabs.popupCandidate = vAPI.tabs.getTabId(e.target);
|
|
e.message = true;
|
|
} else {
|
|
e.message = !vAPI.tabs.onPopup({
|
|
url: e.message.url,
|
|
tabId: 0,
|
|
sourceTabId: vAPI.tabs.getTabId(e.target)
|
|
});
|
|
}
|
|
break;
|
|
case "popstate":
|
|
vAPI.tabs.onUpdated(vAPI.tabs.getTabId(e.target), {
|
|
url: e.message.url
|
|
}, {
|
|
url: e.message.url
|
|
});
|
|
break;
|
|
default:
|
|
if(!blockableTypes.contains(e.message.type)) {
|
|
e.message = true;
|
|
return;
|
|
}
|
|
e.message.hostname = µb.URI.hostnameFromURI(e.message.url);
|
|
e.message.tabId = vAPI.tabs.getTabId(e.target);
|
|
var blockVerdict = onBeforeRequestClient(e.message);
|
|
if(blockVerdict && blockVerdict.cancel) {
|
|
e.message = false;
|
|
} else {
|
|
e.message = true;
|
|
}
|
|
}
|
|
return;
|
|
};
|
|
safari.application.addEventListener("message", onBeforeRequestAdapter, true);
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.contextMenu = {
|
|
contextMap: {
|
|
frame: 'insideFrame',
|
|
link: 'linkHref',
|
|
image: 'srcUrl',
|
|
editable: 'editable'
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.contextMenu.create = function(details, callback) {
|
|
var contexts = details.contexts;
|
|
var menuItemId = details.id;
|
|
var menuTitle = details.title;
|
|
|
|
if(Array.isArray(contexts) && contexts.length) {
|
|
contexts = contexts.indexOf('all') === -1 ? contexts : null;
|
|
} else {
|
|
// default in Chrome
|
|
contexts = ['page'];
|
|
}
|
|
|
|
this.onContextMenu = function(e) {
|
|
var uI = e.userInfo;
|
|
|
|
if(!uI || /^https?:\/\//i.test(uI.pageUrl) === false) {
|
|
return;
|
|
}
|
|
|
|
if(contexts) {
|
|
var invalidContext = true;
|
|
var ctxMap = vAPI.contextMenu.contextMap;
|
|
|
|
for(var i = 0; i < contexts.length; i++) {
|
|
var ctx = contexts[i];
|
|
|
|
if(ctx === 'audio' || ctx === 'video') {
|
|
if(uI[ctxMap['image']] && uI.tagName === ctx) {
|
|
invalidContext = false;
|
|
break;
|
|
}
|
|
} else if(uI[ctxMap[ctx]]) {
|
|
invalidContext = false;
|
|
break;
|
|
} else if(ctx === 'page') {
|
|
if(!(uI.insideFrame || uI.linkHref || uI.mediaType || uI.editable)) {
|
|
invalidContext = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(invalidContext) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
e.contextMenu.appendContextMenuItem(menuItemId, menuTitle);
|
|
};
|
|
|
|
this.onContextMenuCmd = function(e) {
|
|
if(e.command === menuItemId) {
|
|
var tab = e.currentTarget.activeBrowserWindow.activeTab;
|
|
e.userInfo.menuItemId = menuItemId;
|
|
callback(e.userInfo, tab ? {
|
|
id: vAPI.tabs.getTabId(tab),
|
|
url: tab.url
|
|
} : undefined);
|
|
}
|
|
};
|
|
|
|
safari.application.addEventListener('contextmenu', this.onContextMenu);
|
|
safari.application.addEventListener('command', this.onContextMenuCmd);
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.contextMenu.remove = function() {
|
|
safari.application.removeEventListener('contextmenu', this.onContextMenu);
|
|
safari.application.removeEventListener('command', this.onContextMenuCmd);
|
|
this.onContextMenu = null;
|
|
this.onContextMenuCmd = null;
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.lastError = function() {
|
|
return null;
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
// This is called only once, when everything has been loaded in memory after
|
|
// the extension was launched. It can be used to inject content scripts
|
|
// in already opened web pages, to remove whatever nuisance could make it to
|
|
// the web pages before uBlock was ready.
|
|
|
|
vAPI.onLoadAllCompleted = function() {};
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.punycodeHostname = function(hostname) {
|
|
return hostname;
|
|
};
|
|
|
|
vAPI.punycodeURL = function(url) {
|
|
return url;
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
})();
|