Raymond Hill
10 years ago
committed by
gorhill
gorhill
1 changed files with 381 additions and 0 deletions
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/******************************************************************************* |
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µBlock - a Chromium 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 */ |
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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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/******************************************************************************/ |
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self.vAPI = self.vAPI || {}; |
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var vAPI = self.vAPI; |
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var chrome = self.chrome; |
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vAPI.chrome = true; |
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/******************************************************************************/ |
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vAPI.storage = chrome.storage.local; |
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/******************************************************************************/ |
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vAPI.tabs = {}; |
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/******************************************************************************/ |
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vAPI.tabs.registerListeners = function() { |
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if ( typeof this.onNavigation === 'function' ) { |
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chrome.webNavigation.onCommitted.addListener(this.onNavigation); |
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} |
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if ( typeof this.onUpdated === 'function' ) { |
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chrome.tabs.onUpdated.addListener(this.onUpdated); |
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} |
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if ( typeof this.onClosed === 'function' ) { |
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chrome.tabs.onRemoved.addListener(this.onClosed); |
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} |
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if ( typeof this.onPopup === 'function' ) { |
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chrome.webNavigation.onCreatedNavigationTarget.addListener(this.onPopup); |
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} |
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}; |
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/******************************************************************************/ |
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vAPI.tabs.get = function(tabId, callback) { |
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var onTabReady = function(tab) { |
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// https://code.google.com/p/chromium/issues/detail?id=410868#c8
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if ( chrome.runtime.lastError ) { |
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return; |
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} |
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callback(tab); |
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}; |
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if ( tabId !== null ) { |
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chrome.tabs.get(tabId, onTabReady); |
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return; |
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} |
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var onTabReceived = function(tabs) { |
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// https://code.google.com/p/chromium/issues/detail?id=410868#c8
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if ( chrome.runtime.lastError ) { |
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return; |
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} |
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callback(tabs[0]); |
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}; |
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chrome.tabs.query({ active: true, currentWindow: true }, onTabReceived); |
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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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var targetURL = details.url; |
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if ( typeof targetURL !== 'string' || targetURL === '' ) { |
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return null; |
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} |
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// extension pages
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if ( /^[\w-]{2,}:/.test(targetURL) !== true ) { |
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targetURL = vAPI.getURL(targetURL); |
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} |
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// dealing with Chrome's asynchronous API
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var wrapper = function() { |
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if ( details.active === undefined ) { |
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details.active = true; |
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} |
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var subWrapper = function() { |
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var _details = { |
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url: targetURL, |
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active: !!details.active |
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}; |
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if ( details.tabId ) { |
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// update doesn't accept index, must use move
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chrome.tabs.update(details.tabId, _details, function(tab) { |
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// if the tab doesn't exist
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if ( vAPI.lastError() ) { |
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chrome.tabs.create(_details); |
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} else if ( details.index !== undefined ) { |
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chrome.tabs.move(tab.id, {index: details.index}); |
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} |
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}); |
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} else { |
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if ( details.index !== undefined ) { |
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_details.index = details.index; |
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} |
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chrome.tabs.create(_details); |
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} |
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}; |
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if ( details.index === -1 ) { |
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vAPI.tabs.get(null, function(tab) { |
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if ( tab ) { |
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details.index = tab.index + 1; |
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} else { |
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delete details.index; |
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} |
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subWrapper(); |
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}); |
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} |
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else { |
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subWrapper(); |
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} |
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}; |
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if ( details.select ) { |
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chrome.tabs.query({ currentWindow: true }, function(tabs) { |
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var rgxHash = /#.*/; |
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// this is questionable
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var url = targetURL.replace(rgxHash, ''); |
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var selected = tabs.some(function(tab) { |
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if ( tab.url.replace(rgxHash, '') === url ) { |
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chrome.tabs.update(tab.id, { active: true }); |
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return true; |
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} |
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}); |
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if ( !selected ) { |
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wrapper(); |
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} |
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}); |
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} |
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else { |
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wrapper(); |
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} |
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}; |
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/******************************************************************************/ |
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vAPI.tabs.remove = function(tabId) { |
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var onTabRemoved = function() { |
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if ( vAPI.lastError() ) { |
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} |
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}; |
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chrome.tabs.remove(tabId, onTabRemoved); |
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}; |
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/******************************************************************************/ |
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vAPI.tabs.injectScript = function(tabId, details, callback) { |
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var onScriptExecuted = function() { |
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// https://code.google.com/p/chromium/issues/detail?id=410868#c8
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if ( chrome.runtime.lastError ) { |
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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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if ( tabId ) { |
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chrome.tabs.executeScript(tabId, details, onScriptExecuted); |
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} else { |
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chrome.tabs.executeScript(details, onScriptExecuted); |
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} |
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}; |
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/******************************************************************************/ |
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// Must read: https://code.google.com/p/chromium/issues/detail?id=410868#c8
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// https://github.com/gorhill/uBlock/issues/19
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// https://github.com/gorhill/uBlock/issues/207
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// Since we may be called asynchronously, the tab id may not exist
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// anymore, so this ensures it does still exist.
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vAPI.setIcon = function(tabId, img, badge) { |
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var onIconReady = function() { |
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if ( vAPI.lastError() ) { |
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return; |
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} |
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chrome.browserAction.setBadgeText({ tabId: tabId, text: badge }); |
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if ( badge !== '' ) { |
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chrome.browserAction.setBadgeBackgroundColor({ tabId: tabId, color: '#666' }); |
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} |
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}; |
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chrome.browserAction.setIcon({ tabId: tabId, path: img }, onIconReady); |
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}; |
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/******************************************************************************/ |
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vAPI.messaging = { |
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ports: {}, |
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listeners: {}, |
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defaultHandler: null, |
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NOOPFUNC: function(){}, |
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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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vAPI.messaging.onPortMessage = function(request, port) { |
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var callback = vAPI.messaging.NOOPFUNC; |
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if ( request.requestId !== undefined ) { |
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callback = function(response) { |
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port.postMessage({ |
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requestId: request.requestId, |
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portName: request.portName, |
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msg: response !== undefined ? response : null |
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}); |
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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.portName]; |
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if ( typeof listener === 'function' ) { |
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r = listener(request.msg, port.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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// Default handler
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r = vAPI.messaging.defaultHandler(request.msg, port.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); |
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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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vAPI.messaging.onPortDisconnect = function(port) { |
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port.onDisconnect.removeListener(vAPI.messaging.onPortDisconnect); |
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port.onMessage.removeListener(vAPI.messaging.onPortMessage); |
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delete vAPI.messaging.ports[port.name]; |
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}; |
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/******************************************************************************/ |
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vAPI.messaging.onPortConnect = function(port) { |
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port.onDisconnect.addListener(vAPI.messaging.onPortDisconnect); |
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port.onMessage.addListener(vAPI.messaging.onPortMessage); |
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vAPI.messaging.ports[port.name] = port; |
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}; |
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/******************************************************************************/ |
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vAPI.messaging.setup = function(defaultHandler) { |
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// Already setup?
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if ( this.defaultHandler !== null ) { |
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return; |
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} |
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if ( typeof defaultHandler !== 'function' ) { |
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defaultHandler = function(){ return vAPI.messaging.UNHANDLED; }; |
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} |
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this.defaultHandler = defaultHandler; |
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chrome.runtime.onConnect.addListener(this.onPortConnect); |
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}; |
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/******************************************************************************/ |
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vAPI.messaging.broadcast = function(message) { |
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var messageWrapper = { |
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broadcast: true, |
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msg: message |
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}; |
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for ( var portName in this.ports ) { |
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if ( this.ports.hasOwnProperty(portName) === false ) { |
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continue; |
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} |
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this.ports[portName].postMessage(messageWrapper); |
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} |
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}; |
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/******************************************************************************/ |
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vAPI.net = { |
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registerListeners: function() { |
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var listeners = [ |
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'onBeforeRequest', |
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'onBeforeSendHeaders', |
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'onHeadersReceived' |
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]; |
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for (var i = 0; i < listeners.length; ++i) { |
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chrome.webRequest[listeners[i]].addListener( |
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this[listeners[i]].callback, |
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{ |
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'urls': this[listeners[i]].urls || ['<all_urls>'], |
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'types': this[listeners[i]].types || [] |
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}, |
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this[listeners[i]].extra |
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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.contextMenu = { |
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create: function(details, callback) { |
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this.menuId = details.id; |
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this.callback = callback; |
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chrome.contextMenus.create(details); |
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chrome.contextMenus.onClicked.addListener(this.callback); |
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}, |
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remove: function() { |
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chrome.contextMenus.onClicked.removeListener(this.callback); |
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chrome.contextMenus.remove(this.menuId); |
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} |
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}; |
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/******************************************************************************/ |
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vAPI.lastError = function() { |
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return chrome.runtime.lastError; |
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}; |
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/******************************************************************************/ |
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})(); |
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/******************************************************************************/ |
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