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Code Issues Releases Wiki Activity

use "platform" as suggested in #360

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Raymond Hill 10 years ago committed by gorhill
parent e9accabf13
commit ec6ad5ab80
1 changed files with 0 additions and 381 deletions
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meta/crx/vapi-background.js
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/*******************************************************************************
µBlock - a Chromium 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 self */
// For background page
/******************************************************************************/
(function() {
'use strict';
/******************************************************************************/
self.vAPI = self.vAPI || {};
var vAPI = self.vAPI;
var chrome = self.chrome;
vAPI.chrome = true;
/******************************************************************************/
vAPI.storage = chrome.storage.local;
/******************************************************************************/
vAPI.tabs = {};
/******************************************************************************/
vAPI.tabs.registerListeners = function() {
if ( typeof this.onNavigation === 'function' ) {
chrome.webNavigation.onCommitted.addListener(this.onNavigation);
}
if ( typeof this.onUpdated === 'function' ) {
chrome.tabs.onUpdated.addListener(this.onUpdated);
}
if ( typeof this.onClosed === 'function' ) {
chrome.tabs.onRemoved.addListener(this.onClosed);
}
if ( typeof this.onPopup === 'function' ) {
chrome.webNavigation.onCreatedNavigationTarget.addListener(this.onPopup);
}
};
/******************************************************************************/
vAPI.tabs.get = function(tabId, callback) {
var onTabReady = function(tab) {
// https://code.google.com/p/chromium/issues/detail?id=410868#c8
if ( chrome.runtime.lastError ) {
return;
}
callback(tab);
};
if ( tabId !== null ) {
chrome.tabs.get(tabId, onTabReady);
return;
}
var onTabReceived = function(tabs) {
// https://code.google.com/p/chromium/issues/detail?id=410868#c8
if ( chrome.runtime.lastError ) {
return;
}
callback(tabs[0]);
};
chrome.tabs.query({ active: true, currentWindow: true }, onTabReceived);
};
/******************************************************************************/
// 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) {
var targetURL = details.url;
if ( typeof targetURL !== 'string' || targetURL === '' ) {
return null;
}
// extension pages
if ( /^[\w-]{2,}:/.test(targetURL) !== true ) {
targetURL = vAPI.getURL(targetURL);
}
// dealing with Chrome's asynchronous API
var wrapper = function() {
if ( details.active === undefined ) {
details.active = true;
}
var subWrapper = function() {
var _details = {
url: targetURL,
active: !!details.active
};
if ( details.tabId ) {
// update doesn't accept index, must use move
chrome.tabs.update(details.tabId, _details, function(tab) {
// if the tab doesn't exist
if ( vAPI.lastError() ) {
chrome.tabs.create(_details);
} else if ( details.index !== undefined ) {
chrome.tabs.move(tab.id, {index: details.index});
}
});
} else {
if ( details.index !== undefined ) {
_details.index = details.index;
}
chrome.tabs.create(_details);
}
};
if ( details.index === -1 ) {
vAPI.tabs.get(null, function(tab) {
if ( tab ) {
details.index = tab.index + 1;
} else {
delete details.index;
}
subWrapper();
});
}
else {
subWrapper();
}
};
if ( details.select ) {
chrome.tabs.query({ currentWindow: true }, function(tabs) {
var rgxHash = /#.*/;
// this is questionable
var url = targetURL.replace(rgxHash, '');
var selected = tabs.some(function(tab) {
if ( tab.url.replace(rgxHash, '') === url ) {
chrome.tabs.update(tab.id, { active: true });
return true;
}
});
if ( !selected ) {
wrapper();
}
});
}
else {
wrapper();
}
};
/******************************************************************************/
vAPI.tabs.remove = function(tabId) {
var onTabRemoved = function() {
if ( vAPI.lastError() ) {
}
};
chrome.tabs.remove(tabId, onTabRemoved);
};
/******************************************************************************/
vAPI.tabs.injectScript = function(tabId, details, callback) {
var onScriptExecuted = function() {
// https://code.google.com/p/chromium/issues/detail?id=410868#c8
if ( chrome.runtime.lastError ) {
}
if ( typeof callback === 'function' ) {
callback();
}
};
if ( tabId ) {
chrome.tabs.executeScript(tabId, details, onScriptExecuted);
} else {
chrome.tabs.executeScript(details, onScriptExecuted);
}
};
/******************************************************************************/
// Must read: https://code.google.com/p/chromium/issues/detail?id=410868#c8
// https://github.com/gorhill/uBlock/issues/19
// https://github.com/gorhill/uBlock/issues/207
// Since we may be called asynchronously, the tab id may not exist
// anymore, so this ensures it does still exist.
vAPI.setIcon = function(tabId, img, badge) {
var onIconReady = function() {
if ( vAPI.lastError() ) {
return;
}
chrome.browserAction.setBadgeText({ tabId: tabId, text: badge });
if ( badge !== '' ) {
chrome.browserAction.setBadgeBackgroundColor({ tabId: tabId, color: '#666' });
}
};
chrome.browserAction.setIcon({ tabId: tabId, path: img }, onIconReady);
};
/******************************************************************************/
vAPI.messaging = {
ports: {},
listeners: {},
defaultHandler: null,
NOOPFUNC: function(){},
UNHANDLED: 'vAPI.messaging.notHandled'
};
/******************************************************************************/
vAPI.messaging.listen = function(listenerName, callback) {
this.listeners[listenerName] = callback;
};
/******************************************************************************/
vAPI.messaging.onPortMessage = function(request, port) {
var callback = vAPI.messaging.NOOPFUNC;
if ( request.requestId !== undefined ) {
callback = function(response) {
port.postMessage({
requestId: request.requestId,
portName: request.portName,
msg: response !== undefined ? response : null
});
};
}
// Specific handler
var r = vAPI.messaging.UNHANDLED;
var listener = vAPI.messaging.listeners[request.portName];
if ( typeof listener === 'function' ) {
r = listener(request.msg, port.sender, callback);
}
if ( r !== vAPI.messaging.UNHANDLED ) {
return;
}
// Default handler
r = vAPI.messaging.defaultHandler(request.msg, port.sender, callback);
if ( r !== vAPI.messaging.UNHANDLED ) {
return;
}
console.error('µBlock> messaging > unknown request: %o', request);
// 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.onPortDisconnect = function(port) {
port.onDisconnect.removeListener(vAPI.messaging.onPortDisconnect);
port.onMessage.removeListener(vAPI.messaging.onPortMessage);
delete vAPI.messaging.ports[port.name];
};
/******************************************************************************/
vAPI.messaging.onPortConnect = function(port) {
port.onDisconnect.addListener(vAPI.messaging.onPortDisconnect);
port.onMessage.addListener(vAPI.messaging.onPortMessage);
vAPI.messaging.ports[port.name] = port;
};
/******************************************************************************/
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;
chrome.runtime.onConnect.addListener(this.onPortConnect);
};
/******************************************************************************/
vAPI.messaging.broadcast = function(message) {
var messageWrapper = {
broadcast: true,
msg: message
};
for ( var portName in this.ports ) {
if ( this.ports.hasOwnProperty(portName) === false ) {
continue;
}
this.ports[portName].postMessage(messageWrapper);
}
};
/******************************************************************************/
vAPI.net = {
registerListeners: function() {
var listeners = [
'onBeforeRequest',
'onBeforeSendHeaders',
'onHeadersReceived'
];
for (var i = 0; i < listeners.length; ++i) {
chrome.webRequest[listeners[i]].addListener(
this[listeners[i]].callback,
{
'urls': this[listeners[i]].urls || ['<all_urls>'],
'types': this[listeners[i]].types || []
},
this[listeners[i]].extra
);
}
}
};
/******************************************************************************/
vAPI.contextMenu = {
create: function(details, callback) {
this.menuId = details.id;
this.callback = callback;
chrome.contextMenus.create(details);
chrome.contextMenus.onClicked.addListener(this.callback);
},
remove: function() {
chrome.contextMenus.onClicked.removeListener(this.callback);
chrome.contextMenus.remove(this.menuId);
}
};
/******************************************************************************/
vAPI.lastError = function() {
return chrome.runtime.lastError;
};
/******************************************************************************/
})();
/******************************************************************************/
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