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