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1 /* | 1 /* |
2 * This file is part of Adblock Plus <http://adblockplus.org/>, | 2 * This file is part of Adblock Plus <http://adblockplus.org/>, |
3 * Copyright (C) 2006-2013 Eyeo GmbH | 3 * Copyright (C) 2006-2014 Eyeo GmbH |
4 * | 4 * |
5 * Adblock Plus is free software: you can redistribute it and/or modify | 5 * Adblock Plus is free software: you can redistribute it and/or modify |
6 * it under the terms of the GNU General Public License version 3 as | 6 * it under the terms of the GNU General Public License version 3 as |
7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
8 * | 8 * |
9 * Adblock Plus is distributed in the hope that it will be useful, | 9 * Adblock Plus is distributed in the hope that it will be useful, |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 * GNU General Public License for more details. | 12 * GNU General Public License for more details. |
13 * | 13 * |
14 * You should have received a copy of the GNU General Public License | 14 * You should have received a copy of the GNU General Public License |
15 * along with Adblock Plus. If not, see <http://www.gnu.org/licenses/>. | 15 * along with Adblock Plus. If not, see <http://www.gnu.org/licenses/>. |
16 */ | 16 */ |
17 | 17 |
18 (function() | 18 (function() |
19 { | 19 { |
20 /* Events */ | 20 /* Message passing */ |
21 | 21 |
22 WrappedEventTarget = function(target) | 22 ext.onMessage = new ext._EventTarget(); |
23 { | 23 |
24 this._listeners = []; | 24 |
25 this._wrappedListeners = []; | 25 /* Background page */ |
26 this._target = target; | 26 |
27 }; | 27 ext.backgroundPage = { |
28 WrappedEventTarget.prototype = { | 28 sendMessage: chrome.runtime.sendMessage, |
29 _prepareExtraArguments: function() | 29 getWindow: function() |
30 { | 30 { |
31 return []; | 31 return chrome.extension.getBackgroundPage(); |
32 }, | |
33 addListener: function(listener) | |
34 { | |
35 var extraArgs = Array.prototype.slice.call(arguments, 1); | |
36 extraArgs = this._prepareExtraArguments.apply(this, extraArgs); | |
37 | |
38 var wrappedListener = this._wrapListener(listener); | |
39 this._listeners.push(listener); | |
40 this._wrappedListeners.push(wrappedListener); | |
41 | |
42 this._target.addListener.apply(this._target, [wrappedListener].concat(extr
aArgs)); | |
43 }, | |
44 removeListener: function(listener) | |
45 { | |
46 var idx = this._listeners.indexOf(listener); | |
47 | |
48 if (idx != -1) { | |
49 this._target.removeListener(this._wrappedListeners[idx]); | |
50 | |
51 this._listeners.splice(idx, 1); | |
52 this._wrappedListeners.splice(idx, 1); | |
53 } | |
54 } | |
55 }; | |
56 | |
57 var MessageEventTarget = function() | |
58 { | |
59 var target; | |
60 if ("runtime" in chrome && "onMessage" in chrome.runtime) | |
61 target = chrome.runtime.onMessage; | |
62 else if ("onMessage" in chrome.extension) | |
63 target = chrome.extension.onMessage; | |
64 else | |
65 target = chrome.extension.onRequest; | |
66 WrappedEventTarget.call(this, target); | |
67 }; | |
68 MessageEventTarget.prototype = { | |
69 __proto__: WrappedEventTarget.prototype, | |
70 _wrapListener: function(listener) { | |
71 return function(message, sender, sendResponse) | |
72 { | |
73 if (sender.tab && sender.tab.id >= 0) | |
74 sender.tab = new Tab(sender.tab); | |
75 return listener(message, sender, sendResponse); | |
76 }; | |
77 } | 32 } |
78 }; | 33 }; |
79 | 34 |
80 | 35 |
81 /* API */ | 36 /* Utils */ |
82 | 37 |
83 ext = { | 38 ext.getURL = chrome.extension.getURL; |
84 backgroundPage: { | 39 ext.i18n = chrome.i18n; |
85 getWindow: function() | |
86 { | |
87 return chrome.extension.getBackgroundPage(); | |
88 } | |
89 }, | |
90 getURL: chrome.extension.getURL, | |
91 onMessage: new MessageEventTarget(), | |
92 i18n: chrome.i18n | |
93 }; | |
94 | |
95 if ("runtime" in chrome && "sendMessage" in chrome.runtime) | |
96 ext.backgroundPage.sendMessage = chrome.runtime.sendMessage; | |
97 else if ("sendMessage" in chrome.extension) | |
98 ext.backgroundPage.sendMessage = chrome.extension.sendMessage; | |
99 else | |
100 ext.backgroundPage.sendMessage = chrome.extension.sendRequest; | |
101 })(); | 40 })(); |
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