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/*******************************************************************************
µBlock - a browser extension to block requests. Copyright (C) 2014 The µBlock authors
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see {http://www.gnu.org/licenses/}.
Home: https://github.com/gorhill/uBlock
*/
/* global Services, CustomizableUI */
// For background page
/******************************************************************************/
(function() {
'use strict';
/******************************************************************************/
const {classes: Cc, interfaces: Ci, utils: Cu} = Components;
Cu['import']('resource://gre/modules/Services.jsm'); Cu['import']('resource:///modules/CustomizableUI.jsm');
/******************************************************************************/
self.vAPI = self.vAPI || {}; vAPI.firefox = true;
/******************************************************************************/
// TODO: read these data from somewhere...
vAPI.app = { name: 'µBlock', version: '0.8.2.3' };
/******************************************************************************/
vAPI.app.restart = function() { // Observing in bootstrap.js
Services.obs.notifyObservers(null, location.host + '-restart', null); };
/******************************************************************************/
// List of things that needs to be destroyed when disabling the extension
// Only functions should be added to it
vAPI.unload = [];
/******************************************************************************/
var SQLite = { open: function() { var path = Services.dirsvc.get('ProfD', Ci.nsIFile); path.append('extension-data');
if ( !path.exists() ) { path.create(Ci.nsIFile.DIRECTORY_TYPE, parseInt('0774', 8)); }
if ( !path.isDirectory() ) { throw Error('Should be a directory...'); }
path.append(location.host + '.sqlite'); this.db = Services.storage.openDatabase(path); this.db.executeSimpleSQL( 'CREATE TABLE IF NOT EXISTS settings' + '(name TEXT PRIMARY KEY NOT NULL, value TEXT);' );
vAPI.unload.push(function() { // VACUUM somewhere else, instead on unload?
SQLite.run('VACUUM'); SQLite.db.asyncClose(); }); },
run: function(query, values, callback) { if ( !this.db ) { this.open(); }
var result = {};
query = this.db.createAsyncStatement(query);
if ( Array.isArray(values) && values.length ) { var i = values.length;
while ( i-- ) { query.bindByIndex(i, values[i]); } }
query.executeAsync({ handleResult: function(rows) { if ( !rows || typeof callback !== 'function' ) { return; }
var row;
while ( row = rows.getNextRow() ) { // we assume that there will be two columns, since we're
// using it only for preferences
result[row.getResultByIndex(0)] = row.getResultByIndex(1); } }, handleCompletion: function(reason) { if ( typeof callback === 'function' && reason === 0 ) { callback(result); } }, handleError: function(error) { console.error('SQLite error ', error.result, error.message); } }); } };
/******************************************************************************/
vAPI.storage = { QUOTA_BYTES: 100 * 1024 * 1024,
sqlWhere: function(col, params) { if ( params > 0 ) { params = Array(params + 1).join('?, ').slice(0, -2); return ' WHERE ' + col + ' IN (' + params + ')'; }
return ''; },
get: function(details, callback) { if ( typeof callback !== 'function' ) { return; }
var values = [], defaults = false;
if ( details !== null ) { if ( Array.isArray(details) ) { values = details; } else if ( typeof details === 'object' ) { defaults = true; values = Object.keys(details); } else { values = [details.toString()]; } }
SQLite.run( 'SELECT * FROM settings' + this.sqlWhere('name', values.length), values, function(result) { var key;
for ( key in result ) { result[key] = JSON.parse(result[key]); }
if ( defaults ) { for ( key in details ) { if ( result[key] === undefined ) { result[key] = details[key]; } } }
callback(result); } ); },
set: function(details, callback) { var key, values = [], placeholders = [];
for ( key in details ) { values.push(key); values.push(JSON.stringify(details[key])); placeholders.push('?, ?'); }
if ( !values.length ) { return; }
SQLite.run( 'INSERT OR REPLACE INTO settings (name, value) SELECT ' + placeholders.join(' UNION SELECT '), values, callback ); },
remove: function(keys, callback) { if ( typeof keys === 'string' ) { keys = [keys]; }
SQLite.run( 'DELETE FROM settings' + this.sqlWhere('name', keys.length), keys, callback ); },
clear: function(callback) { SQLite.run('DELETE FROM settings'); SQLite.run('VACUUM', null, callback); },
getBytesInUse: function(keys, callback) { if ( typeof callback !== 'function' ) { return; }
SQLite.run( 'SELECT "size" AS size, SUM(LENGTH(value)) FROM settings' + this.sqlWhere('name', Array.isArray(keys) ? keys.length : 0), keys, function(result) { callback(result.size); } ); } };
/******************************************************************************/
var windowWatcher = { onTabClose: function(e) { var tabId = vAPI.tabs.getTabId(e.target); vAPI.tabs.onClosed(tabId); delete vAPI.tabIcons[tabId]; },
onTabSelect: function(e) { vAPI.setIcon( vAPI.tabs.getTabId(e.target), e.target.ownerDocument.defaultView ); },
onReady: function(e) { if ( e ) { this.removeEventListener(e.type, windowWatcher.onReady); }
var wintype = this.document.documentElement.getAttribute('windowtype');
if ( wintype !== 'navigator:browser' ) { return; }
if ( !this.gBrowser || !this.gBrowser.tabContainer ) { return; }
var tC = this.gBrowser.tabContainer;
this.gBrowser.addTabsProgressListener(tabsProgressListener); tC.addEventListener('TabClose', windowWatcher.onTabClose); tC.addEventListener('TabSelect', windowWatcher.onTabSelect);
vAPI.toolbarButton.register(this.document); vAPI.contextMenu.register(this.document);
// when new window is opened TabSelect doesn't run on the selected tab?
},
observe: function(win, topic) { if ( topic === 'domwindowopened' ) { win.addEventListener('DOMContentLoaded', this.onReady); } } };
/******************************************************************************/
var tabsProgressListener = { onLocationChange: function(browser, webProgress, request, location, flags) { if ( !webProgress.isTopLevel ) { return; }
var tabId = vAPI.tabs.getTabId(browser);
if ( flags & 1 ) { vAPI.tabs.onUpdated(tabId, {url: location.spec}, { frameId: 0, tabId: tabId, url: browser.currentURI.spec }); } else { vAPI.tabs.onNavigation({ frameId: 0, tabId: tabId, url: location.spec }); } } };
/******************************************************************************/
vAPI.tabs = {};
/******************************************************************************/
vAPI.tabs.registerListeners = function() { // onNavigation and onUpdated handled with tabsProgressListener
// onClosed - handled in windowWatcher.onTabClose
// onPopup ?
for ( var win of this.getWindows() ) { windowWatcher.onReady.call(win); }
Services.ww.registerNotification(windowWatcher); vAPI.toolbarButton.init();
vAPI.unload.push(function() { Services.ww.unregisterNotification(windowWatcher);
for ( var win of vAPI.tabs.getWindows() ) { vAPI.toolbarButton.unregister(win.document); vAPI.contextMenu.unregister(win.document);
win.removeEventListener('DOMContentLoaded', windowWatcher.onReady); win.gBrowser.removeTabsProgressListener(tabsProgressListener);
var tC = win.gBrowser.tabContainer; tC.removeEventListener('TabClose', windowWatcher.onTabClose); tC.removeEventListener('TabSelect', windowWatcher.onTabSelect);
// close extension tabs
for ( var tab of win.gBrowser.tabs ) { var URI = tab.linkedBrowser.currentURI;
if ( URI.scheme === 'chrome' && URI.host === location.host ) { win.gBrowser.removeTab(tab); } } } }); };
/******************************************************************************/
vAPI.tabs.getTabId = function(target) { if ( target.linkedPanel ) { return target.linkedPanel.slice(6); }
var i, gBrowser = target.ownerDocument.defaultView.gBrowser;
// This should be more efficient from version 35
if ( gBrowser.getTabForBrowser ) { i = gBrowser.getTabForBrowser(target); return i ? i.linkedPanel.slice(6) : -1; }
i = gBrowser.browsers.indexOf(target);
if ( i !== -1 ) { i = gBrowser.tabs[i].linkedPanel.slice(6); }
return i; };
/******************************************************************************/
vAPI.tabs.get = function(tabId, callback) { var tab, windows;
if ( tabId === null ) { tab = Services.wm.getMostRecentWindow('navigator:browser').gBrowser.selectedTab; tabId = vAPI.tabs.getTabId(tab); } else { windows = this.getWindows();
for ( var win of windows ) { tab = win.gBrowser.tabContainer.querySelector( 'tab[linkedpanel="panel-' + tabId + '"]' );
if ( tab ) { break; } } }
// for internal use
if ( tab && typeof callback !== 'function' ) { return tab; }
if ( !tab ) { callback(); return; }
var browser = tab.linkedBrowser; var gBrowser = browser.ownerDocument.defaultView.gBrowser;
if ( !windows ) { windows = this.getWindows(); }
callback({ id: tabId, index: gBrowser.browsers.indexOf(browser), windowId: windows.indexOf(browser.ownerDocument.defaultView), active: tab === gBrowser.selectedTab, url: browser.currentURI.spec, title: tab.label }); };
/******************************************************************************/
vAPI.tabs.getAll = function(window) { var win, tab, tabs = [];
for ( win of this.getWindows() ) { if ( window && window !== win ) { continue; }
for ( tab of win.gBrowser.tabs ) { tabs.push(tab); } }
return tabs; };
/******************************************************************************/
vAPI.tabs.getWindows = function() { var winumerator = Services.wm.getEnumerator('navigator:browser'); var windows = [];
while ( winumerator.hasMoreElements() ) { var win = winumerator.getNext();
if ( !win.closed ) { windows.push(win); } }
return windows; };
/******************************************************************************/
// properties of the details object:
// url: 'URL', // the address that will be opened
// tabId: 1, // the tab is used if set, instead of creating a new one
// index: -1, // undefined: end of the list, -1: following tab, or after index
// active: false, // opens the tab in background - true and undefined: foreground
// select: true // if a tab is already opened with that url, then select it instead of opening a new one
vAPI.tabs.open = function(details) { if ( !details.url ) { return null; } // extension pages
if ( /^[\w-]{2,}:/.test(details.url) === false ) { details.url = vAPI.getURL(details.url); }
var tab, tabs;
if ( details.select ) { var rgxHash = /#.*/; // this is questionable
var url = details.url.replace(rgxHash, ''); tabs = this.getAll();
for ( tab of tabs ) { var browser = tab.linkedBrowser;
if ( browser.currentURI.spec.replace(rgxHash, '') === url ) { browser.ownerDocument.defaultView.gBrowser.selectedTab = tab; return; } } }
if ( details.active === undefined ) { details.active = true; }
var gBrowser = Services.wm.getMostRecentWindow('navigator:browser').gBrowser;
if ( details.index === -1 ) { details.index = gBrowser.browsers.indexOf(gBrowser.selectedBrowser) + 1; }
if ( details.tabId ) { tabs = tabs || this.getAll();
for ( tab of tabs ) { if ( vAPI.tabs.getTabId(tab) === details.tabId ) { tab.linkedBrowser.loadURI(details.url); return; } } }
tab = gBrowser.loadOneTab(details.url, {inBackground: !details.active});
if ( details.index !== undefined ) { gBrowser.moveTabTo(tab, details.index); } };
/******************************************************************************/
vAPI.tabs.close = function(tabIds) { if ( !Array.isArray(tabIds) ) { tabIds = [tabIds]; }
tabIds = tabIds.map(function(tabId) { return 'tab[linkedpanel="panel-' + tabId + '"]'; }).join(',');
for ( var win of this.getWindows() ) { var tabs = win.gBrowser.tabContainer.querySelectorAll(tabIds);
if ( !tabs ) { continue; }
for ( var tab of tabs ) { win.gBrowser.removeTab(tab); } } };
/******************************************************************************/
vAPI.tabs.injectScript = function(tabId, details, callback) { var tab = vAPI.tabs.get(tabId);
if ( !tab ) { return; }
if ( details.file ) { details.file = vAPI.getURL(details.file); }
tab.linkedBrowser.messageManager.sendAsyncMessage( location.host + ':broadcast', JSON.stringify({ broadcast: true, channelName: 'vAPI', msg: { cmd: 'injectScript', details: details } }) );
if ( typeof callback === 'function' ) { setTimeout(callback, 13); } };
/******************************************************************************/
vAPI.tabIcons = { /*tabId: {badge: 0, img: boolean}*/ }; vAPI.setIcon = function(tabId, iconStatus, badge) { // If badge is undefined, then setIcon was called from the TabSelect event
var curWin = badge === undefined ? iconStatus : Services.wm.getMostRecentWindow('navigator:browser'); var curTabId = vAPI.tabs.getTabId(curWin.gBrowser.selectedTab);
// from 'TabSelect' event
if ( tabId === undefined ) { tabId = curTabId; } else if ( badge !== undefined ) { vAPI.tabIcons[tabId] = { badge: badge, img: iconStatus === 'on' }; }
if ( tabId !== curTabId ) { return; }
var button = curWin.document.getElementById(vAPI.toolbarButton.widgetId);
if ( !button ) { return; }
/*if ( !button.classList.contains('badged-button') ) { button.classList.add('badged-button'); }*/
var icon = vAPI.tabIcons[tabId]; button.setAttribute('badge', icon && icon.badge || ''); iconStatus = !button.image || !icon || !icon.img ? '-off' : ''; button.image = vAPI.getURL('img/browsericons/icon16' + iconStatus + '.svg'); };
/******************************************************************************/
vAPI.toolbarButton = { widgetId: location.host + '-button', panelId: location.host + '-panel' };
/******************************************************************************/
vAPI.toolbarButton.init = function() { CustomizableUI.createWidget({ id: this.widgetId, type: 'view', viewId: this.panelId, defaultArea: CustomizableUI.AREA_NAVBAR, label: vAPI.app.name, tooltiptext: vAPI.app.name, onViewShowing: function({target}) { target.firstChild.setAttribute('src', vAPI.getURL('popup.html')); }, onViewHiding: function({target}) { target.firstChild.setAttribute('src', 'about:blank'); } });
this.closePopup = function({target}) { CustomizableUI.hidePanelForNode( target.ownerDocument.getElementById(vAPI.toolbarButton.panelId) ); };
vAPI.messaging.globalMessageManager.addMessageListener( location.host + ':closePopup', this.closePopup );
vAPI.unload.push(function() { CustomizableUI.destroyWidget(vAPI.toolbarButton.widgetId); vAPI.messaging.globalMessageManager.addMessageListener( location.host + ':closePopup', vAPI.toolbarButton.closePopup ); }); };
/******************************************************************************/
// it runs with windowWatcher when a window is opened
// vAPI.tabs.registerListeners initializes it
vAPI.toolbarButton.register = function(doc) { var panel = doc.createElement('panelview'); panel.setAttribute('id', this.panelId);
var iframe = doc.createElement('iframe'); iframe.setAttribute('type', 'content');
doc.getElementById('PanelUI-multiView') .appendChild(panel) .appendChild(iframe);
var updateTimer = null; var delayedResize = function() { if ( updateTimer ) { return; }
updateTimer = setTimeout(resizePopup, 20); };
var resizePopup = function() { var panelStyle = panel.style; var body = iframe.contentDocument.body; panelStyle.width = iframe.style.width = body.clientWidth + 'px'; panelStyle.height = iframe.style.height = body.clientHeight + 'px'; updateTimer = null; };
var onPopupReady = function() { var win = this.contentWindow;
if ( !win || win.location.host !== location.host ) { return; }
new win.MutationObserver(delayedResize).observe(win.document, { childList: true, attributes: true, characterData: true, subtree: true });
delayedResize(); };
iframe.addEventListener('load', onPopupReady, true);
if ( !this.styleURI ) { this.styleURI = 'data:text/css,' + encodeURIComponent([ '#' + this.widgetId + ' {', 'list-style-image: url(', vAPI.getURL('img/browsericons/icon16-off.svg'), ');', '}', '#' + this.widgetId + '[badge]:not([badge=""])::after {', 'position: absolute;', 'margin-left: -16px;', 'margin-top: 3px;', 'padding: 1px 2px;', 'font-size: 9px;', 'font-weight: bold;', 'color: #fff;', 'background: #666;', 'content: attr(badge);', '}', '#' + this.panelId + ', #' + this.panelId + ' > iframe {', 'width: 180px;', 'height: 310px;', 'overflow: hidden !important;', '}' ].join(''));
this.styleURI = Services.io.newURI(this.styleURI, null, null); }
doc.defaultView.QueryInterface(Ci.nsIInterfaceRequestor). getInterface(Ci.nsIDOMWindowUtils).loadSheet(this.styleURI, 1); };
/******************************************************************************/
vAPI.toolbarButton.unregister = function(doc) { var panel = doc.getElementById(this.panelId); panel.parentNode.removeChild(panel); doc.defaultView.QueryInterface(Ci.nsIInterfaceRequestor). getInterface(Ci.nsIDOMWindowUtils).removeSheet(this.styleURI, 1); };
/******************************************************************************/
vAPI.messaging = { get globalMessageManager() { return Cc['@mozilla.org/globalmessagemanager;1'] .getService(Ci.nsIMessageListenerManager); }, frameScript: vAPI.getURL('frameScript.js'), listeners: {}, defaultHandler: null, NOOPFUNC: function(){}, UNHANDLED: 'vAPI.messaging.notHandled' };
/******************************************************************************/
vAPI.messaging.listen = function(listenerName, callback) { this.listeners[listenerName] = callback; };
/******************************************************************************/
vAPI.messaging.onMessage = function({target, data}) { var messageManager = target.messageManager;
if ( !messageManager ) { // Message came from a popup, and its message manager is not usable.
// So instead we broadcast to the parent window.
messageManager = target .webNavigation.QueryInterface(Ci.nsIDocShell) .chromeEventHandler.ownerDocument.defaultView.messageManager; }
var listenerId = data.channelName.split('|'); var requestId = data.requestId; var channelName = listenerId[1]; listenerId = listenerId[0];
var callback = vAPI.messaging.NOOPFUNC; if ( requestId !== undefined ) { callback = function(response) { var message = JSON.stringify({ requestId: requestId, channelName: channelName, msg: response !== undefined ? response : null });
if ( messageManager.sendAsyncMessage ) { messageManager.sendAsyncMessage(listenerId, message); } else { messageManager.broadcastAsyncMessage(listenerId, message); } }; }
var sender = { tab: { id: vAPI.tabs.getTabId(target) } };
// Specific handler
var r = vAPI.messaging.UNHANDLED; var listener = vAPI.messaging.listeners[channelName]; if ( typeof listener === 'function' ) { r = listener(data.msg, sender, callback); } if ( r !== vAPI.messaging.UNHANDLED ) { return; }
// Default handler
r = vAPI.messaging.defaultHandler(data.msg, sender, callback); if ( r !== vAPI.messaging.UNHANDLED ) { return; }
console.error('µBlock> messaging > unknown request: %o', data);
// Unhandled:
// Need to callback anyways in case caller expected an answer, or
// else there is a memory leak on caller's side
callback(); };
/******************************************************************************/
vAPI.messaging.setup = function(defaultHandler) { // Already setup?
if ( this.defaultHandler !== null ) { return; }
if ( typeof defaultHandler !== 'function' ) { defaultHandler = function(){ return vAPI.messaging.UNHANDLED; }; } this.defaultHandler = defaultHandler;
this.globalMessageManager.addMessageListener( location.host + ':background', this.onMessage );
this.globalMessageManager.loadFrameScript(this.frameScript, true);
vAPI.unload.push(function() { var gmm = vAPI.messaging.globalMessageManager;
gmm.removeDelayedFrameScript(vAPI.messaging.frameScript); gmm.removeMessageListener( location.host + ':background', vAPI.messaging.onMessage ); }); };
/******************************************************************************/
vAPI.messaging.broadcast = function(message) { this.globalMessageManager.broadcastAsyncMessage( location.host + ':broadcast', JSON.stringify({broadcast: true, msg: message}) ); };
/******************************************************************************/
var httpObserver = { ABORT: Components.results.NS_BINDING_ABORTED, lastRequest: { url: null, type: null, tabId: null, frameId: null, parentFrameId: null },
QueryInterface: (function() { var {XPCOMUtils} = Cu['import']('resource://gre/modules/XPCOMUtils.jsm', {}); return XPCOMUtils.generateQI([ Ci.nsIObserver, Ci.nsISupportsWeakReference ]); })(),
register: function() { Services.obs.addObserver(httpObserver, 'http-on-opening-request', true); // Services.obs.addObserver(httpObserver, 'http-on-modify-request', true);
Services.obs.addObserver(httpObserver, 'http-on-examine-response', true); },
unregister: function() { Services.obs.removeObserver(httpObserver, 'http-on-opening-request'); // Services.obs.removeObserver(httpObserver, 'http-on-modify-request');
Services.obs.removeObserver(httpObserver, 'http-on-examine-response'); },
observe: function(httpChannel, topic) { // No need for QueryInterface if this check is performed?
if ( !(httpChannel instanceof Ci.nsIHttpChannel) ) { return; }
var URI = httpChannel.URI, tabId, result;
if ( topic === 'http-on-modify-request' ) { // var onHeadersReceived = vAPI.net.onHeadersReceived;
return; }
if ( topic === 'http-on-examine-request' ) { try { tabId = httpChannel.getProperty('tabId'); } catch (ex) { return; }
if ( !tabId ) { return; }
topic = 'Content-Security-Policy';
try { result = httpChannel.getResponseHeader(topic); } catch (ex) { result = null; }
result = vAPI.net.onHeadersReceived.callback({ url: URI.spec, tabId: tabId, parentFrameId: -1, responseHeaders: result ? [{name: topic, value: result}] : [] });
if ( result ) { httpChannel.setResponseHeader( topic, result.responseHeaders.pop().value, true ); }
return; }
// http-on-opening-request
var lastRequest = this.lastRequest;
if ( !lastRequest.url || lastRequest.url !== URI.spec ) { lastRequest.url = null; return; }
// Important! When loading file via XHR for mirroring,
// the URL will be the same, so it could fall into an infinite loop
lastRequest.url = null;
if ( lastRequest.type === 'main_frame' && httpChannel instanceof Ci.nsIWritablePropertyBag ) { httpChannel.setProperty('tabId', lastRequest.tabId); }
var onBeforeRequest = vAPI.net.onBeforeRequest;
if ( !onBeforeRequest.types.has(lastRequest.type) ) { return; }
result = onBeforeRequest.callback({ url: URI.spec, type: lastRequest.type, tabId: lastRequest.tabId, frameId: lastRequest.frameId, parentFrameId: lastRequest.parentFrameId });
if ( !result || typeof result !== 'object' ) { return; }
if ( result.cancel === true ) { httpChannel.cancel(this.ABORT); } else if ( result.redirectUrl ) { httpChannel.redirectionLimit = 1; httpChannel.redirectTo( Services.io.newURI(result.redirectUrl, null, null) ); } } };
/******************************************************************************/
vAPI.net = {};
/******************************************************************************/
vAPI.net.registerListeners = function() { var typeMap = { 2: 'script', 3: 'image', 4: 'stylesheet', 5: 'object', 6: 'main_frame', 7: 'sub_frame', 11: 'xmlhttprequest' };
this.onBeforeRequest.types = new Set(this.onBeforeRequest.types);
var shouldLoadListenerMessageName = location.host + ':shouldLoad'; var shouldLoadListener = function(e) { var lastRequest = httpObserver.lastRequest; lastRequest.url = e.data.url; lastRequest.type = typeMap[e.data.type] || 'other'; lastRequest.tabId = vAPI.tabs.getTabId(e.target); lastRequest.frameId = e.data.frameId; lastRequest.parentFrameId = e.data.parentFrameId; };
vAPI.messaging.globalMessageManager.addMessageListener( shouldLoadListenerMessageName, shouldLoadListener );
httpObserver.register();
vAPI.unload.push(function() { vAPI.messaging.globalMessageManager.removeMessageListener( shouldLoadListenerMessageName, shouldLoadListener );
httpObserver.unregister(); }); };
/******************************************************************************/
vAPI.contextMenu = { contextMap: { frame: 'inFrame', link: 'onLink', image: 'onImage', audio: 'onAudio', video: 'onVideo', editable: 'onEditableArea' } };
/******************************************************************************/
vAPI.contextMenu.displayMenuItem = function(e) { var doc = e.target.ownerDocument; var gContextMenu = doc.defaultView.gContextMenu; var menuitem = doc.getElementById(vAPI.contextMenu.menuItemId);
if ( /^https?$/.test(gContextMenu.browser.currentURI.scheme) === false) { menuitem.hidden = true; return; }
var ctx = vAPI.contextMenu.contexts;
if ( !ctx ) { menuitem.hidden = false; return; }
var ctxMap = vAPI.contextMenu.contextMap;
for ( var context of ctx ) { if ( context === 'page' && !gContextMenu.onLink && !gContextMenu.onImage && !gContextMenu.onEditableArea && !gContextMenu.inFrame && !gContextMenu.onVideo && !gContextMenu.onAudio ) { menuitem.hidden = false; return; }
if ( gContextMenu[ctxMap[context]] ) { menuitem.hidden = false; return; } }
menuitem.hidden = true; };
/******************************************************************************/
vAPI.contextMenu.register = function(doc) { if ( !this.menuItemId ) { return; }
var contextMenu = doc.getElementById('contentAreaContextMenu'); var menuitem = doc.createElement('menuitem');
menuitem.setAttribute('id', this.menuItemId); menuitem.setAttribute('label', this.menuLabel); menuitem.setAttribute('image', vAPI.getURL('img/browsericons/icon16.svg')); menuitem.setAttribute('class', 'menuitem-iconic');
menuitem.addEventListener('command', this.onCommand); contextMenu.addEventListener('popupshowing', this.displayMenuItem);
contextMenu.insertBefore(menuitem, doc.getElementById('inspect-separator')); };
/******************************************************************************/
vAPI.contextMenu.unregister = function(doc) { if ( !this.menuItemId ) { return; }
var menuitem = doc.getElementById(this.menuItemId); var contextMenu = menuitem.parentNode;
menuitem.removeEventListener('command', this.onCommand); contextMenu.removeEventListener('popupshowing', this.displayMenuItem); contextMenu.removeChild(menuitem); };
/******************************************************************************/
vAPI.contextMenu.create = function(details, callback) { this.menuItemId = details.id; this.menuLabel = details.title; this.contexts = details.contexts;
if ( Array.isArray(this.contexts) && this.contexts.length ) { this.contexts = this.contexts.indexOf('all') === -1 ? this.contexts : null; } else { // default in Chrome
this.contexts = ['page']; }
this.onCommand = function() { var gContextMenu = this.ownerDocument.defaultView.gContextMenu; var details = { menuItemId: this.id, tagName: gContextMenu.target.tagName.toLowerCase() };
if ( gContextMenu.inFrame ) { details.frameUrl = gContextMenu.focusedWindow.location.href; } else if ( gContextMenu.onImage || gContextMenu.onAudio || gContextMenu.onVideo ) { details.srcUrl = gContextMenu.mediaURL; } else if ( gContextMenu.onLink ) { details.linkUrl = gContextMenu.linkURL; }
callback(details, { id: vAPI.tabs.getTabId(gContextMenu.browser), url: gContextMenu.browser.currentURI.spec }); };
for ( var win of vAPI.tabs.getWindows() ) { this.register(win.document); } };
/******************************************************************************/
vAPI.contextMenu.remove = function() { for ( var win of vAPI.tabs.getWindows() ) { this.unregister(win.document); }
this.menuItemId = null; this.menuLabel = null; this.contexts = null; this.onCommand = 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() {};
/******************************************************************************/
// clean up when the extension is disabled
window.addEventListener('unload', function() { for ( var unload of vAPI.unload ) { unload(); }
// frameModule needs to be cleared too
var frameModule = {}; Cu['import'](vAPI.getURL('frameModule.js'), frameModule); frameModule.contentPolicy.unregister(); frameModule.docObserver.unregister(); Cu.unload(vAPI.getURL('frameModule.js')); });
/******************************************************************************/
})();
/******************************************************************************/
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