1 /*
2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "IconDatabase.h"
28
29 #if !ENABLE(ICONDATABASE)
30
31 #include "PlatformString.h"
32 #include "SharedBuffer.h"
33 #include <wtf/StdLibExtras.h>
34
35 namespace WebCore {
36
37 static IconDatabase* sharedIconDatabase = 0;
38
39 // This version number is in the DB and marks the current generation of the schema
40 // Theoretically once the switch is flipped this should never change
41 // Currently, an out-of-date schema causes the DB to be wiped and reset. This isn't
42 // so bad during development but in the future, we would need to write a conversion
43 // function to advance older released schemas to "current"
44 const int currentDatabaseVersion = 5;
45
46 // Icons expire once a day
47 const int iconExpirationTime = 60*60*24;
48 // Absent icons are rechecked once a week
49 const int missingIconExpirationTime = 60*60*24*7;
50
51 const int updateTimerDelay = 5;
52
defaultDatabaseFilename()53 String IconDatabase::defaultDatabaseFilename()
54 {
55 DEFINE_STATIC_LOCAL(String, defaultDatabaseFilename, ("Icons.db"));
56 return defaultDatabaseFilename.threadsafeCopy();
57 }
58
iconDatabase()59 IconDatabase* iconDatabase()
60 {
61 if (!sharedIconDatabase)
62 sharedIconDatabase = new IconDatabase;
63 return sharedIconDatabase;
64 }
65
IconDatabase()66 IconDatabase::IconDatabase()
67 {
68 }
69
open(const String &)70 bool IconDatabase::open(const String& /*databasePath*/)
71 {
72 return false;
73 }
74
isOpen() const75 bool IconDatabase::isOpen() const
76 {
77 return false;
78 }
79
close()80 void IconDatabase::close()
81 {
82 }
83
databasePath() const84 String IconDatabase::databasePath() const
85 {
86 return String();
87 }
88
removeAllIcons()89 void IconDatabase::removeAllIcons()
90 {
91 }
92
setPrivateBrowsingEnabled(bool)93 void IconDatabase::setPrivateBrowsingEnabled(bool /*flag*/)
94 {
95 }
96
isPrivateBrowsingEnabled() const97 bool IconDatabase::isPrivateBrowsingEnabled() const
98 {
99 return false;
100 }
101
readIconForPageURLFromDisk(const String &)102 void IconDatabase::readIconForPageURLFromDisk(const String&)
103 {
104
105 }
106
iconForPageURL(const String &,const IntSize & size)107 Image* IconDatabase::iconForPageURL(const String& /*pageURL*/, const IntSize& size)
108 {
109 return defaultIcon(size);
110 }
111
112
loadDecisionForIconURL(const String &,DocumentLoader *)113 IconLoadDecision IconDatabase::loadDecisionForIconURL(const String&, DocumentLoader*)
114 {
115 return IconLoadNo;
116 }
117
iconDataKnownForIconURL(const String &)118 bool IconDatabase::iconDataKnownForIconURL(const String&)
119 {
120 return false;
121 }
122
iconURLForPageURL(const String &)123 String IconDatabase::iconURLForPageURL(const String& /*pageURL*/)
124 {
125 return String();
126 }
127
defaultIcon(const IntSize &)128 Image* IconDatabase::defaultIcon(const IntSize& /*size*/)
129 {
130 return 0;
131 }
132
retainIconForPageURL(const String &)133 void IconDatabase::retainIconForPageURL(const String& /*pageURL*/)
134 {
135 }
136
releaseIconForPageURL(const String &)137 void IconDatabase::releaseIconForPageURL(const String& /*pageURL*/)
138 {
139 }
140
setIconDataForIconURL(PassRefPtr<SharedBuffer>,const String &)141 void IconDatabase::setIconDataForIconURL(PassRefPtr<SharedBuffer> /*data*/, const String& /*iconURL*/)
142 {
143 }
144
setIconURLForPageURL(const String &,const String &)145 void IconDatabase::setIconURLForPageURL(const String& /*iconURL*/, const String& /*pageURL*/)
146 {
147 }
148
setEnabled(bool)149 void IconDatabase::setEnabled(bool /*enabled*/)
150 {
151 }
152
isEnabled() const153 bool IconDatabase::isEnabled() const
154 {
155 return false;
156 }
157
~IconDatabase()158 IconDatabase::~IconDatabase()
159 {
160 ASSERT_NOT_REACHED();
161 }
162
checkIntegrityBeforeOpening()163 void IconDatabase::checkIntegrityBeforeOpening()
164 {
165 }
166
delayDatabaseCleanup()167 void IconDatabase::delayDatabaseCleanup()
168 {
169 }
170
allowDatabaseCleanup()171 void IconDatabase::allowDatabaseCleanup()
172 {
173 }
174
pageURLMappingCount()175 size_t IconDatabase::pageURLMappingCount()
176 {
177 return 0;
178 }
179
retainedPageURLCount()180 size_t IconDatabase::retainedPageURLCount()
181 {
182 return 0;
183 }
184
iconRecordCount()185 size_t IconDatabase::iconRecordCount()
186 {
187 return 0;
188 }
189
iconRecordCountWithData()190 size_t IconDatabase::iconRecordCountWithData()
191 {
192 return 0;
193 }
194
setClient(IconDatabaseClient *)195 void IconDatabase::setClient(IconDatabaseClient*)
196 {
197 }
198
199 // ************************
200 // *** Sync Thread Only ***
201 // ************************
202
importIconURLForPageURL(const String &,const String &)203 void IconDatabase::importIconURLForPageURL(const String&, const String&)
204 {
205 }
206
importIconDataForIconURL(PassRefPtr<SharedBuffer>,const String &)207 void IconDatabase::importIconDataForIconURL(PassRefPtr<SharedBuffer>, const String&)
208 {
209 }
210
shouldStopThreadActivity() const211 bool IconDatabase::shouldStopThreadActivity() const
212 {
213 return true;
214 }
215
216 } // namespace WebCore
217
218 #endif // !ENABLE(ICONDATABASE)
219