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1 /* | 1 /* |
2 * This file is part of Adblock Plus <https://adblockplus.org/>, | 2 * This file is part of Adblock Plus <https://adblockplus.org/>, |
3 * Copyright (C) 2006-2016 Eyeo GmbH | 3 * Copyright (C) 2006-2016 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 "use strict"; | 18 "use strict"; |
19 | 19 |
20 let {port} = require("messaging"); | 20 let {port} = require("messaging"); |
21 let {ElemHide} = require("elemHide"); | 21 let {ElemHide} = require("elemHide"); |
22 let {FilterNotifier} = require("filterNotifier"); | 22 let {FilterNotifier} = require("filterNotifier"); |
| 23 let {FilterStorage} = require("filterStorage"); |
23 let {Prefs} = require("prefs"); | 24 let {Prefs} = require("prefs"); |
24 let {Utils} = require("utils"); | 25 let {Policy} = require("contentPolicy"); |
25 | 26 |
26 /** | 27 FilterNotifier.on("elemhideupdate", () => port.emit("elemhideupdate")); |
27 * Indicates whether the element hiding stylesheet is currently applied. | |
28 * @type Boolean | |
29 */ | |
30 let applied = false; | |
31 | 28 |
32 /** | 29 port.on("getSelectors", () => ElemHide.getSelectors()); |
33 * Stylesheet URL to be registered | |
34 * @type nsIURI | |
35 */ | |
36 let styleURL = Utils.makeURI("about:abp-elemhide?css"); | |
37 | 30 |
38 function init() | 31 port.on("elemhideEnabled", ({frames, isPrivate}) => |
39 { | 32 { |
40 port.on("getSelectors", () => ElemHide.getSelectors()); | 33 if (!Prefs.enabled) |
| 34 return {enabled: false}; |
41 | 35 |
42 apply(); | 36 let hit = Policy.isFrameWhitelisted(frames, true); |
43 onShutdown.add(unapply); | 37 if (hit) |
44 | |
45 Prefs.addListener(function(name) | |
46 { | 38 { |
47 if (name == "enabled") | 39 let [frameIndex, contentType, docDomain, thirdParty, location, filter] = hit
; |
48 apply(); | 40 if (!isPrivate) |
49 }); | 41 FilterStorage.increaseHitCount(filter); |
50 | 42 return { |
51 FilterNotifier.on("elemhideupdate", onUpdate); | 43 enabled: false, |
52 } | 44 contentType, docDomain, thirdParty, location, |
53 | 45 filter: filter.text, filterType: filter.type |
54 function onUpdate() | 46 }; |
55 { | |
56 // Call apply() asynchronously and protect against reentrance - multiple | |
57 // change events shouldn't result in multiple calls. | |
58 if (onUpdate.inProgress) | |
59 return; | |
60 | |
61 onUpdate.inProgress = true; | |
62 Utils.runAsync(() => | |
63 { | |
64 onUpdate.inProgress = false; | |
65 apply(); | |
66 }); | |
67 } | |
68 | |
69 function apply() | |
70 { | |
71 unapply(); | |
72 | |
73 if (!Prefs.enabled) | |
74 return; | |
75 | |
76 try | |
77 { | |
78 Utils.styleService.loadAndRegisterSheet(styleURL, | |
79 Ci.nsIStyleSheetService.USER_SHEET); | |
80 applied = true; | |
81 } | 47 } |
82 catch (e) | 48 else |
83 { | 49 return {enabled: true}; |
84 Cu.reportError(e); | 50 }); |
85 } | |
86 } | |
87 | |
88 function unapply() | |
89 { | |
90 if (applied) | |
91 { | |
92 try | |
93 { | |
94 Utils.styleService.unregisterSheet(styleURL, | |
95 Ci.nsIStyleSheetService.USER_SHEET); | |
96 } | |
97 catch (e) | |
98 { | |
99 Cu.reportError(e); | |
100 } | |
101 applied = false; | |
102 } | |
103 } | |
104 | |
105 // Send dummy message before initializing, this delay makes sure that the child | |
106 // modules are loaded and our protocol handler registered. | |
107 port.emitWithResponse("ping").then(init); | |
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