1 /* |
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2 * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Classes for thumbnail-related tasks. |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 /** |
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21 * @internal reviewed 31/07/2007 by Simon Brooks |
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22 */ |
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23 |
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24 #include "glxtnthumbnailcreator.h" |
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25 |
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26 #include "glxpanic.h" |
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27 #include "glxtnbackgroundgenerationtask.h" |
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28 #include "glxtncleanuptask.h" |
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29 #include "glxtndeletethumbnailstask.h" |
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30 #include "glxtnfileutility.h" |
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31 #include "glxtnfilteravailabletask.h" |
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32 #include "glxtngeneratethumbnailtask.h" |
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33 #include "glxtnquickthumbnailtask.h" |
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34 #include "glxtntaskmanager.h" |
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35 #include "glxtnthumbnailrequest.h" |
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36 #include "glxtnzoomedimagetask.h" |
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37 #include "mglxtnthumbnailcreatorclient.h" |
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38 |
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39 #include <glxtracer.h> |
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40 #include <glxsettingsmodel.h> |
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41 |
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42 // ----------------------------------------------------------------------------- |
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43 // InstanceL |
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44 // ----------------------------------------------------------------------------- |
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45 // |
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46 EXPORT_C CGlxtnThumbnailCreator* CGlxtnThumbnailCreator::InstanceL() |
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47 { |
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48 TRACER("CGlxtnThumbnailCreator::InstanceL()"); |
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49 CGlxtnThumbnailCreator* instance |
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50 = reinterpret_cast<CGlxtnThumbnailCreator*>(Dll::Tls()); |
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51 |
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52 // Create instance if does not exist |
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53 if ( !instance ) |
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54 { |
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55 instance = new (ELeave) CGlxtnThumbnailCreator(); |
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56 CleanupStack::PushL(instance); |
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57 instance->ConstructL(); |
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58 CleanupStack::Pop(instance); |
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59 |
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60 Dll::SetTls(instance); |
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61 } |
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62 |
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63 // Add user |
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64 instance->iReferenceCount++; |
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65 |
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66 return instance; |
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67 } |
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68 |
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69 // ----------------------------------------------------------------------------- |
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70 // Close |
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71 // ----------------------------------------------------------------------------- |
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72 // |
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73 EXPORT_C void CGlxtnThumbnailCreator::Close(MGlxtnThumbnailStorage* aStorage) |
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74 { |
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75 TRACER("CGlxtnThumbnailCreator::Close()"); |
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76 // Cancel any tasks using the client's storage |
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77 if ( aStorage ) |
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78 { |
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79 iTaskManager->CancelTasks(aStorage); |
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80 } |
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81 |
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82 __ASSERT_DEBUG(iReferenceCount > 0, Panic(EGlxPanicIllegalState)); |
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83 iReferenceCount--; |
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84 if ( iReferenceCount < 1 ) |
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85 { |
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86 Dll::SetTls(NULL); |
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87 delete this; |
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88 } |
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89 } |
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90 |
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91 // ----------------------------------------------------------------------------- |
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92 // Constructor |
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93 // ----------------------------------------------------------------------------- |
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94 // |
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95 CGlxtnThumbnailCreator::CGlxtnThumbnailCreator() |
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96 { |
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97 TRACER("CGlxtnThumbnailCreator::CGlxtnThumbnailCreator()"); |
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98 } |
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99 |
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100 // ----------------------------------------------------------------------------- |
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101 // ConstructL |
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102 // ----------------------------------------------------------------------------- |
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103 // |
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104 void CGlxtnThumbnailCreator::ConstructL() |
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105 { |
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106 TRACER("CGlxtnThumbnailCreator::ConstructL()"); |
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107 iFileUtility = CGlxtnFileUtility::NewL(); |
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108 iTaskManager = CGlxtnTaskManager::NewL(); |
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109 iSettingsModel = CGlxSettingsModel::InstanceL(); |
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110 } |
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111 |
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112 // ----------------------------------------------------------------------------- |
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113 // Destructor |
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114 // ----------------------------------------------------------------------------- |
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115 // |
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116 CGlxtnThumbnailCreator::~CGlxtnThumbnailCreator() |
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117 { |
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118 TRACER("CGlxtnThumbnailCreator::~CGlxtnThumbnailCreator()"); |
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119 delete iTaskManager; |
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120 delete iFileUtility; |
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121 if (iSettingsModel) |
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122 { |
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123 iSettingsModel->Close(); |
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124 } |
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125 } |
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126 |
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127 // ----------------------------------------------------------------------------- |
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128 // FetchThumbnailL |
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129 // ----------------------------------------------------------------------------- |
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130 // |
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131 EXPORT_C void CGlxtnThumbnailCreator::FetchThumbnailL( |
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132 const TGlxThumbnailRequest& aRequestInfo, |
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133 MGlxtnThumbnailCreatorClient& aClient) |
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134 { |
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135 TRACER("void CGlxtnThumbnailCreator::FetchThumbnailL()"); |
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136 // Create the task |
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137 CGlxtnTask* task = NULL; |
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138 |
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139 if ( 0 == aRequestInfo.iBitmapHandle ) |
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140 { |
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141 task = CGlxtnBackgroundGenerationTask::NewL(aRequestInfo.iId, |
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142 *iFileUtility, aClient, iSettingsModel->SupportedOrientations() ); |
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143 } |
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144 else if ( ( 0 == aRequestInfo.iSizeClass.iWidth) || ( 0 == aRequestInfo.iSizeClass.iHeight ) ) |
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145 { |
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146 User::Leave(KErrArgument); |
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147 } |
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148 else if ( !aRequestInfo.iCroppingRect.IsEmpty() ) |
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149 { |
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150 task = CGlxtnZoomedImageTask::NewL(aRequestInfo, |
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151 *iFileUtility, aClient); |
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152 } |
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153 else if ( TGlxThumbnailRequest::EPrioritizeQuality == aRequestInfo.iPriorityMode ) |
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154 { |
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155 task = CGlxtnGenerateThumbnailTask::NewL(aRequestInfo, |
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156 *iFileUtility, aClient); |
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157 } |
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158 else |
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159 { |
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160 task = CGlxtnQuickThumbnailTask::NewL(aRequestInfo, |
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161 *iFileUtility, aClient); |
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162 } |
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163 |
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164 iTaskManager->AddTaskL(task); // Takes ownership |
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165 } |
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166 |
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167 // ----------------------------------------------------------------------------- |
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168 // DeleteThumbnailsL |
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169 // Starts deleting all stored thumbnails for a given item. This will result |
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170 // in a callback to MGlxtnThumbnailCreatorClient::ThumbnailDeletionComplete(). |
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171 // ----------------------------------------------------------------------------- |
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172 // |
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173 EXPORT_C void CGlxtnThumbnailCreator::DeleteThumbnailsL( |
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174 const TGlxMediaId& aItemId, MGlxtnThumbnailCreatorClient& aClient) |
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175 { |
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176 TRACER("void CGlxtnThumbnailCreator::DeleteThumbnailsL()"); |
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177 iTaskManager->AddTaskL(CGlxtnDeleteThumbnailsTask::NewL(aItemId, aClient)); |
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178 } |
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179 |
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180 // ----------------------------------------------------------------------------- |
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181 // FilterAvailableThumbnailsL |
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182 // Starts the filtering of items for which a thumbnail is available from a |
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183 // list of item IDs. This will result in a callback to |
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184 // MGlxtnThumbnailCreatorClient::FilterAvailableComplete(). |
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185 // ----------------------------------------------------------------------------- |
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186 // |
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187 EXPORT_C void CGlxtnThumbnailCreator::FilterAvailableThumbnailsL( |
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188 const TArray<TGlxMediaId>& aItemArray, const TSize& aSize, |
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189 MGlxtnThumbnailCreatorClient& aClient) |
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190 { |
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191 TRACER("void CGlxtnThumbnailCreator::FilterAvailableThumbnailsL()"); |
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192 iTaskManager->AddTaskL(CGlxtnFilterAvailableTask::NewL(aItemArray, aSize, |
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193 aClient)); |
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194 } |
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195 |
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196 // ----------------------------------------------------------------------------- |
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197 // CleanupThumbnailsL |
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198 // Starts the cleanup of obsolete thumbnails from storage. There is no |
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199 // callback indicating completion of the request. |
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200 // ----------------------------------------------------------------------------- |
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201 // |
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202 EXPORT_C void CGlxtnThumbnailCreator::CleanupThumbnailsL( |
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203 MGlxtnThumbnailStorage* aStorage) |
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204 { |
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205 TRACER("void CGlxtnThumbnailCreator::CleanupThumbnailsL()"); |
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206 iTaskManager->AddTaskL(CGlxtnCleanupTask::NewL(aStorage)); |
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207 } |
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208 |
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209 // ----------------------------------------------------------------------------- |
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210 // CancelRequest |
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211 // Cancel any ongoing tasks for a given item. This ensures the TNC is not |
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212 // locking the media file. |
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213 // ----------------------------------------------------------------------------- |
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214 // |
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215 EXPORT_C void CGlxtnThumbnailCreator::CancelRequest(const TGlxMediaId& aItemId) |
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216 { |
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217 TRACER("void CGlxtnThumbnailCreator::CancelRequest()"); |
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218 iTaskManager->CancelTasks(aItemId); |
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219 } |
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