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Issue 5088751004942336: Issue 370 - Right-clicked element is removed independent of created filter (Closed)
Patch Set: Rebase to rev 3c9cea80c481 Created July 18, 2014, 8:54 a.m.
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1 /*
2 * This file is part of Adblock Plus <http://adblockplus.org/>,
3 * Copyright (C) 2006-2014 Eyeo GmbH
4 *
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
7 * published by the Free Software Foundation.
8 *
9 * Adblock Plus is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
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/>.
16 */
17
18 //
19 // No direct file system access, using LocalStorage API
20 //
21
22 var IO = exports.IO =
23 {
24 _getFilePath: function(file)
25 {
26 if (file instanceof FakeFile)
27 return file.path;
28 else if ("spec" in file)
29 return file.spec;
30
31 throw new Error("Unexpected file type");
32 },
33
34 _setFileContents: function(path, contents, lastModified)
35 {
36 ext.storage[path] = contents;
37 ext.storage[path + "/lastModified"] = lastModified || 0;
38 },
39
40 lineBreak: "\n",
41
42 resolveFilePath: function(path)
43 {
44 return new FakeFile(path);
45 },
46
47 readFromFile: function(file, listener, callback, timeLineID)
48 {
49 var Utils = require("utils").Utils;
50 Utils.runAsync(function()
51 {
52 var path = this._getFilePath(file);
53 if (!(path in ext.storage))
54 {
55 callback(new Error("File doesn't exist"))
56 return;
57 }
58
59 var lines = ext.storage[path].split(/[\r\n]+/);
60 for (var i = 0; i < lines.length; i++)
61 listener.process(lines[i]);
62 listener.process(null);
63 callback(null);
64 }.bind(this));
65 },
66
67 writeToFile: function(file, data, callback, timeLineID)
68 {
69 var path = this._getFilePath(file);
70 this._setFileContents(path, data.join(this.lineBreak) + this.lineBreak, Date .now());
71
72 var Utils = require("utils").Utils;
73 Utils.runAsync(callback, null, null);
74 },
75
76 copyFile: function(fromFile, toFile, callback)
77 {
78 // Simply combine read and write operations
79 var data = [];
80 this.readFromFile(fromFile, {
81 process: function(line)
82 {
83 if (line !== null)
84 data.push(line);
85 }
86 }, function(e)
87 {
88 if (e)
89 callback(e);
90 else
91 this.writeToFile(toFile, data, callback);
92 }.bind(this));
93 },
94
95 renameFile: function(fromFile, newName, callback)
96 {
97 var path = this._getFilePath(fromFile);
98 if (!(path in ext.storage))
99 {
100 callback(new Error("File doesn't exist"))
101 return;
102 }
103
104 this._setFileContents(newName, ext.storage[path], ext.storage[path + "/lastM odified"]);
105 this.removeFile(fromFile, callback);
106 },
107
108 removeFile: function(file, callback)
109 {
110 var path = this._getFilePath(file);
111 delete ext.storage[path];
112 delete ext.storage[path + "/lastModified"];
113 callback(null);
114 },
115
116 statFile: function(file, callback)
117 {
118 var path = this._getFilePath(file);
119
120 // This needs to use Utils.runAsync(), otherwise FilterStorage might
121 // initialize too early - see #337.
122 require("utils").Utils.runAsync(callback.bind(null, null, {
123 exists: path in ext.storage,
124 isDirectory: false,
125 isFile: true,
126 lastModified: parseInt(ext.storage[path + "/lastModified"], 10) || 0
127 }));
128 }
129 };
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