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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) 2006-2013 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 WebSQL API
20 //
21
22 var IO = exports.IO =
23 {
24 _db: null,
25 lineBreak: "\n",
26
27 _transaction: function(callback)
28 {
29 var dbCreated = false;
30 if (!this._db)
31 this._db = openDatabase("adblockplus", "1.0", "", 102400, function() { dbC reated = true; });
32
33 this._db.transaction(function(tx)
34 {
35 if (dbCreated)
36 tx.executeSql("CREATE TABLE files (path unique, last_modified, content)" );
37
38 callback(tx);
39 });
40 },
41 _getFilePath: function(file)
42 {
43 if (file instanceof FakeFile)
44 return file.path;
45 if ("spec" in file)
46 return file.spec;
47
48 throw new Error("Unexpected file type");
49 },
50 resolveFilePath: function(path)
51 {
52 return new FakeFile(path);
53 },
54 readFromFile: function(file, decode, listener, callback, timeLineID)
55 {
56 if ("spec" in file && /^defaults\b/.test(file.spec))
57 {
58 // Code attempts to read the default patterns.ini, we don't have that.
59 // Make sure to execute first-run actions instead.
60 var Utils = require("utils").Utils;
61 Utils.runAsync(function()
62 {
63 if (localStorage.currentVersion)
64 seenDataCorruption = true;
65 delete localStorage.currentVersion;
66 callback(null);
67 });
68 return;
69 }
70
71 var path = this._getFilePath(file);
72 var runAsync = require("utils").Utils.runAsync;
73
74 this._transaction(function(tx)
75 {
76 tx.executeSql(
77 "SELECT content FROM files WHERE path = ?",
78 [path],
79 function(tx, results)
80 {
81 if (results.rows.length == 0)
82 {
83 runAsync(callback, null, new Error("File doesn't exist"));
84 return;
85 }
86
87 var lines = results.rows.item(0).content.split(/[\r\n]+/);
88 runAsync(function()
89 {
90 for (var i = 0; i < lines.length; i++)
91 listener.process(lines[i]);
92 listener.process(null);
93 callback(null);
94 });
95 }
96 );
97 });
98 },
99 writeToFile: function(file, encode, data, callback, timeLineID)
100 {
101 var path = this._getFilePath(file);
102 var lnbr = this.lineBreak;
103 var runAsync = require("utils").Utils.runAsync;
104
105 this._transaction(function(tx)
106 {
107 tx.executeSql(
108 "INSERT OR REPLACE INTO files VALUES (?, ?, ?)",
109 [path, Date.now(), data.join(lnbr) + lnbr],
110 function() { runAsync(callback, null, null); }
111 );
112 });
113 },
114 copyFile: function(fromFile, toFile, callback)
115 {
116 var fromPath = this._getFilePath(fromFile);
117 var toPath = this._getFilePath(toFile);
118 var runAsync = require("utils").Utils.runAsync;
119
120 this._transaction(function(tx)
121 {
122 tx.executeSql(
123 "INSERT OR REPLACE INTO files SELECT ?, ?, content FROM files WHERE path = ?",
124 [toPath, Date.now(), fromPath],
125 function(tx, results)
126 {
127 if (results.rowsAffected == 0)
128 runAsync(callback, null, new Error("File doesn't exist"));
129 else
130 runAsync(callback, null, null);
131 }
132 );
133 });
134 },
135 renameFile: function(fromFile, newName, callback)
136 {
137 var path = this._getFilePath(fromFile);
138 var runAsync = require("utils").Utils.runAsync;
139
140 this._transaction(function(tx)
141 {
142 tx.executeSql(
143 "UPDATE files SET path = ? WHERE path = ?",
144 [newName, path],
145 function(tx, results)
146 {
147 if (results.rowsAffected == 0)
148 runAsync(callback, null, new Error("File doesn't exist"));
149 else
150 runAsync(callback, null, null);
151 }
152 );
153 });
154 },
155 removeFile: function(file, callback)
156 {
157 var path = this._getFilePath(file);
158 var runAsync = require("utils").Utils.runAsync;
159
160 this._transaction(function(tx)
161 {
162 tx.executeSql(
163 "DELETE FROM files WHERE path = ?",
164 [path],
165 function() { runAsync(callback, null, null); }
166 );
167 });
168 },
169 statFile: function(file, callback)
170 {
171 var path = this._getFilePath(file);
172 var runAsync = require("utils").Utils.runAsync;
173
174 this._transaction(function(tx)
175 {
176 tx.executeSql(
177 "SELECT last_modified FROM files WHERE path = ?",
178 [path],
179 function(tx, results)
180 {
181 if (results.rows.length == 0)
182 runAsync(callback, null, null, {
183 exists: false,
184 isDirectory: false,
185 isFile: false,
186 lastModified: 0
187 });
188 else
189 runAsync(callback, null, null, {
190 exists: true,
191 isDirectory: false,
192 isFile: true,
193 lastModified: results.rows.item(0).last_modified
194 });
195 }
196 );
197 });
198 }
199 };
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