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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: Media List View Base |
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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 #include "glxmedialistviewbase.h" |
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22 |
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23 #include <mpxcollectionutility.h> |
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24 #include <glxcollectionpluginimageviewer.hrh> |
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25 #include <glxcollectionpluginalbums.hrh> |
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26 #include <glxcommandhandler.h> |
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27 #include <glxassert.h> |
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28 #include <glxgallery.hrh> |
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29 #include <glxattributecontext.h> |
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30 #include <glxuistd.h> |
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31 #include <glxfetchcontextremover.h> |
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32 #include <glxcommandhandlers.hrh> |
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33 #include <AknUtils.h> |
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34 #include <glxtracer.h> // For Logs |
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35 #include <glxattributeretriever.h> |
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36 #include "glxtitlefetcher.h" |
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37 #include "glxmedialistfactory.h" |
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38 #include "mglxmedialist.h" |
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39 |
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40 _LIT(KBlankTitle," "); |
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41 |
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42 // ----------------------------------------------------------------------------- |
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43 // Constructor |
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44 // ----------------------------------------------------------------------------- |
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45 // |
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46 EXPORT_C CGlxMediaListViewBase::CGlxMediaListViewBase() |
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47 { |
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48 } |
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49 |
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50 // ----------------------------------------------------------------------------- |
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51 // MLViewBaseConstructL |
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52 // ----------------------------------------------------------------------------- |
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53 // |
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54 EXPORT_C void CGlxMediaListViewBase::MLViewBaseConstructL( |
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55 MGlxMediaListFactory* aMediaListFactory, |
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56 const TDesC& aTitle,TBool aEnableMiddleSoftkey) |
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57 { |
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58 iMediaListFactory = aMediaListFactory; |
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59 iCollectionUtility = MMPXCollectionUtility::NewL(NULL, KMcModeDefault); |
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60 iEnableMidddleSoftkey = aEnableMiddleSoftkey; |
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61 |
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62 iSelectionIterator.SetRange(KMaxTInt); |
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63 |
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64 if (aTitle.Length() > 0) |
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65 { |
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66 iFixedTitle = aTitle.AllocL(); |
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67 } |
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68 |
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69 if (iUiUtility->IsPenSupported()) |
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70 { |
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71 // Responsible for controlling the ui states of toolbar |
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72 // Create ToolbarController only for touch supported devices. |
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73 iToolbarControl = CGlxToolbarController::NewL(); |
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74 } |
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75 else |
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76 { |
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77 // Responsible for controlling the middle softkey if enabled. |
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78 // Create Middle Softkey Controller only for non-touch devices |
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79 iCbaControl = CGlxMSKController::NewL(); |
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80 } |
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81 } |
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82 |
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83 // ----------------------------------------------------------------------------- |
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84 // Destructor |
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85 // ----------------------------------------------------------------------------- |
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86 // |
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87 EXPORT_C CGlxMediaListViewBase::~CGlxMediaListViewBase() |
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88 { |
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89 CloseMediaList(); |
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90 |
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91 if ( iCollectionUtility ) |
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92 { |
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93 iCollectionUtility->Close(); |
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94 } |
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95 |
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96 delete iFixedTitle; |
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97 delete iTitleFetcher; |
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98 if (iPreloadContextForCommandHandlers) |
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99 { |
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100 delete iPreloadContextForCommandHandlers; |
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101 } |
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102 |
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103 if( iCbaControl ) |
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104 { |
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105 delete iCbaControl; |
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106 } |
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107 |
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108 if( iToolbarControl ) |
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109 { |
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110 delete iToolbarControl; |
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111 } |
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112 } |
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113 |
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114 // ----------------------------------------------------------------------------- |
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115 // MediaList |
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116 // ----------------------------------------------------------------------------- |
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117 // |
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118 EXPORT_C MGlxMediaList& CGlxMediaListViewBase::MediaList() |
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119 { |
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120 GLX_ASSERT_ALWAYS( iMediaList, Panic( EGlxPanicNullMediaList ), |
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121 "Media list has been closed" ); |
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122 return *iMediaList; |
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123 } |
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124 |
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125 // ----------------------------------------------------------------------------- |
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126 // DoViewActivateL |
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127 // ----------------------------------------------------------------------------- |
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128 // |
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129 EXPORT_C void CGlxMediaListViewBase::DoViewActivateL( |
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130 const TVwsViewId& aPrevViewId, TUid aCustomMessageId, |
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131 const TDesC8& aCustomMessage) |
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132 { |
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133 TRACER ("CGlxMediaListViewBase::DoViewActivateL()"); |
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134 iUiUtility->SetAppOrientationL( EGlxOrientationDefault ); |
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135 // current navigational state |
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136 CMPXCollectionPath* navigationalState = |
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137 iCollectionUtility->Collection().PathL(); |
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138 CleanupStack::PushL( navigationalState ); |
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139 |
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140 if ( iMediaList ) |
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141 { |
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142 // may need to refresh the media list if it has got out of sync |
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143 // with the current navigational state, e.g. when jumping back two views |
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144 // instead of just one, the intermediate view's media list will not have |
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145 // been closed so if that view is subsequently re-opened its media list |
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146 // could contain out of date items |
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147 CMPXCollectionPath* path = iMediaList->PathLC(); |
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148 // current navigational state |
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149 // current node id in UI Hierarchy |
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150 TMPXItemId navStateNodeId = |
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151 navigationalState->Id( navigationalState->Levels() - 2 ); |
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152 // current media list's node id in UI hierarchy |
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153 TMPXItemId mediaListNodeId = path->Id( path->Levels() - 2 ); |
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154 |
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155 if ( mediaListNodeId != navStateNodeId ) |
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156 { |
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157 // the node ids are out of synch so close the media list |
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158 // for it to be recreated later on |
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159 CloseMediaList(); |
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160 } |
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161 CleanupStack::PopAndDestroy( path ); |
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162 } |
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163 |
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164 if (!iMediaList && iMediaListFactory) |
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165 { |
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166 iMediaList |
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167 = &iMediaListFactory->CreateMediaListL(*iCollectionUtility); |
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168 |
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169 if ((navigationalState->Id() != TMPXItemId( |
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170 KGlxCollectionPluginAlbumsImplementationUid))) |
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171 { |
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172 iPreloadContextForCommandHandlers |
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173 = new (ELeave) CGlxAttributeContext(&iSelectionIterator); |
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174 TInt commandHandlerCount = iCommandHandlerList.Count(); |
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175 for (TInt i = 0; i < commandHandlerCount; i++) |
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176 { |
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177 DoPrepareCommandHandlerL(iCommandHandlerList[i]); |
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178 } |
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179 |
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180 iMediaList->AddContextL(iPreloadContextForCommandHandlers, 0); |
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181 } |
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182 } |
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183 __ASSERT_ALWAYS(iMediaList, Panic(EGlxPanicNullMediaList)); |
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184 |
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185 |
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186 if (navigationalState->Id() == TMPXItemId(KGlxCollectionPluginImageViewerImplementationUid)) |
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187 { |
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188 // As image viewer is direct fullscreen view, |
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189 // it will not have title. |
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190 SetTitleL(KBlankTitle); |
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191 } |
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192 else if(iFixedTitle) |
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193 { |
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194 // If there is a fixed title, set it |
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195 SetTitleL(*iFixedTitle); |
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196 } |
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197 else |
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198 { |
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199 // else obtain a title from the media list |
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200 // First set a blank title to claim the title space |
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201 SetTitleL(KBlankTitle); |
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202 |
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203 CMPXCollectionPath* path = iMediaList->PathLC( NGlxListDefs::EPathParent ); |
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204 iTitleFetcher = CGlxTitleFetcher::NewL(*this, path); |
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205 CleanupStack::PopAndDestroy(path); |
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206 } |
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207 |
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208 //Allow the MskController to observe medialist everytime a view with a valid |
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209 //medialist becomes active |
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210 if( iCbaControl && Cba()&& iEnableMidddleSoftkey ) |
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211 { |
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212 iCbaControl->AddToObserverL(*iMediaList,Cba()); |
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213 if(!(1 == navigationalState->Levels())) // Checking for the main list view |
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214 { |
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215 iCbaControl->SetStatusOnViewActivationL(iMediaList); |
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216 } |
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217 else |
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218 { |
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219 iCbaControl->SetMainStatusL(); |
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220 } |
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221 } |
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222 |
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223 CleanupStack::PopAndDestroy( navigationalState ); |
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224 |
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225 DoMLViewActivateL(aPrevViewId, aCustomMessageId, aCustomMessage); |
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226 //Allow the toolbarController to observe medialist everytime a view with a valid |
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227 //medialist becomes active |
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228 if( GetToolBar() && iToolbarControl ) |
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229 { |
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230 iToolbarControl->AddToObserverL(*iMediaList, GetToolBar()); |
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231 iToolbarControl->SetStatusOnViewActivationL(iMediaList); |
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232 } |
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233 } |
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234 |
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235 // ----------------------------------------------------------------------------- |
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236 // DoViewDeactivate |
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237 // ----------------------------------------------------------------------------- |
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238 // |
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239 EXPORT_C void CGlxMediaListViewBase::DoViewDeactivate() |
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240 { |
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241 TRACER ("CGlxMediaListViewBase::DoViewDeactivate()"); |
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242 //Need to be done before the view deactivation |
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243 //as the grid toolbar will be deleted in grid deactivation. |
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244 |
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245 if (GetToolBar() && iToolbarControl && iMediaList) |
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246 { |
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247 //Remove Toolbarcontroller from medialist observer |
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248 iToolbarControl->RemoveFromObserver(*iMediaList); |
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249 } |
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250 DoMLViewDeactivate(); |
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251 |
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252 if( iMediaList ) |
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253 { |
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254 if (iCbaControl && Cba()) |
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255 { |
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256 //Remove Mskcontroller from medialist observer |
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257 iCbaControl->RemoveFromObserver(*iMediaList); |
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258 } |
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259 // Only close the medialist if navigating backwards |
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260 if (iUiUtility->ViewNavigationDirection() == EGlxNavigationBackwards) |
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261 { |
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262 CloseMediaList(); |
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263 } |
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264 } |
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265 |
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266 delete iTitleFetcher; |
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267 iTitleFetcher = NULL; |
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268 } |
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269 |
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270 // ----------------------------------------------------------------------------- |
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271 // CGlxMediaListViewBase::FetchAttributesL |
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272 // ----------------------------------------------------------------------------- |
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273 // |
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274 EXPORT_C void CGlxMediaListViewBase::FetchAttributesL() |
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275 { |
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276 FetchAttributesL(EFalse); |
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277 } |
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278 |
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279 // ----------------------------------------------------------------------------- |
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280 // CGlxMediaListViewBase::FetchAttributesForCommandL |
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281 // ----------------------------------------------------------------------------- |
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282 // |
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283 EXPORT_C void CGlxMediaListViewBase::FetchAttributesForCommandL(TInt aCommand) |
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284 { |
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285 FetchAttributesL(ETrue, aCommand); |
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286 } |
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287 |
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288 // ----------------------------------------------------------------------------- |
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289 // SetToolbarStateL |
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290 // ----------------------------------------------------------------------------- |
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291 // |
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292 EXPORT_C void CGlxMediaListViewBase::SetToolbarStateL() |
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293 { |
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294 TRACER("CGlxMediaListViewBase::SetToolbarStateL"); |
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295 |
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296 if( iToolbarControl && iMediaList ) |
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297 { |
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298 iToolbarControl->SetStatusL(iMediaList); |
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299 } |
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300 } |
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301 |
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302 // ----------------------------------------------------------------------------- |
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303 // CGlxMediaListViewBase::FetchAttributesL |
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304 // ----------------------------------------------------------------------------- |
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305 // |
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306 void CGlxMediaListViewBase::FetchAttributesL(TBool aFilterUsingCommandId, |
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307 TInt aCommandId) |
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308 { |
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309 TRACER("CGlxMediaListViewBase::FetchAttributesL"); |
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310 |
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311 TGlxSelectionIterator iterator; |
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312 CGlxAttributeContext* attributeContext = new(ELeave) CGlxAttributeContext(&iterator); |
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313 CleanupStack::PushL(attributeContext); |
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314 |
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315 TInt commandHandlerCount = iCommandHandlerList.Count(); |
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316 for (TInt i = 0; i < commandHandlerCount; i++) |
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317 { |
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318 AddAttributesToContextL(*attributeContext, iCommandHandlerList[i], ETrue, aFilterUsingCommandId, aCommandId); |
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319 } |
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320 |
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321 if( EAknSoftkeyBack == aCommandId || attributeContext->AttributeCount()) |
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322 { |
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323 // Check if media attributes are already fetched. |
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324 // If media item is NULL, Cancel the previous pending request |
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325 MediaList().CancelPreviousRequests(); |
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326 } |
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327 |
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328 if (attributeContext->AttributeCount()) |
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329 { |
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330 |
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331 MediaList().AddContextL(attributeContext, KGlxFetchContextPriorityCommandHandlerOpening ); |
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332 |
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333 // TGlxContextRemover will remove the context when it goes out of scope |
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334 // Used here to avoid a trap and still have safe cleanup |
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335 TGlxFetchContextRemover contextRemover(attributeContext, MediaList()); |
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336 // put to cleanupstack as cleanupstack is emptied before stack objects |
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337 // are deleted |
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338 CleanupClosePushL( contextRemover ); |
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339 // retrieve attributes, ignore return value |
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340 (void)GlxAttributeRetriever::RetrieveL(*attributeContext, MediaList(), ETrue); |
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341 // context off the list |
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342 CleanupStack::PopAndDestroy( &contextRemover ); |
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343 } |
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344 |
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345 CleanupStack::PopAndDestroy(attributeContext); |
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346 } |
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347 |
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348 // ----------------------------------------------------------------------------- |
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349 // HandleTitleAvailableL |
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350 // ----------------------------------------------------------------------------- |
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351 // |
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352 EXPORT_C void CGlxMediaListViewBase::HandleTitleAvailableL( |
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353 const TDesC& aTitle) |
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354 { |
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355 // Convertion of unsigned short to unsigned int |
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356 TUint16* tileConv = const_cast<TUint16*>(aTitle.Ptr()); |
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357 TInt titleLen = aTitle.Length(); |
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358 TPtr titlePtr(tileConv,titleLen,titleLen); |
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359 |
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360 //to convert between arabic-indic digits and european digits. |
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361 //based on existing language setting. |
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362 AknTextUtils::LanguageSpecificNumberConversion(titlePtr); |
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363 |
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364 // Set a title after it has been obtained by the title fetcher |
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365 SetTitleL(aTitle); |
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366 } |
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367 |
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368 // ----------------------------------------------------------------------------- |
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369 // CGlxMediaListViewBase::DoPrepareCommandHandlerL |
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370 // ----------------------------------------------------------------------------- |
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371 // |
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372 EXPORT_C void CGlxMediaListViewBase::DoPrepareCommandHandlerL( |
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373 CGlxCommandHandler* aCommandHandler) |
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374 { |
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375 if (iPreloadContextForCommandHandlers) |
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376 { |
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377 AddAttributesToContextL(*iPreloadContextForCommandHandlers, |
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378 aCommandHandler, EFalse, EFalse); |
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379 } |
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380 } |
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381 |
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382 // ----------------------------------------------------------------------------- |
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383 // CGlxMediaListViewBase::CloseMediaList |
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384 // ----------------------------------------------------------------------------- |
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385 // |
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386 void CGlxMediaListViewBase::CloseMediaList() |
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387 { |
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388 if (iMediaList) |
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389 { |
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390 if (iPreloadContextForCommandHandlers) |
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391 { |
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392 iMediaList->RemoveContext(iPreloadContextForCommandHandlers); |
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393 } |
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394 iMediaList->Close(); |
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395 iMediaList = NULL; |
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396 } |
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397 } |
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398 |
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399 // ----------------------------------------------------------------------------- |
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400 // CGlxMediaListViewBase::AddAttributesToContextL |
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401 // ----------------------------------------------------------------------------- |
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402 // |
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403 void CGlxMediaListViewBase::AddAttributesToContextL( |
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404 CGlxAttributeContext& aAttributeContext, |
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405 CGlxCommandHandler* aCommandHandler, |
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406 TBool aFilterUsingSelection, |
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407 TBool aFilterUsingCommandId, |
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408 TInt aCommandId) |
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409 { |
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410 RArray<TMPXAttribute> requiredAttributes; |
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411 CleanupClosePushL(requiredAttributes); |
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412 aCommandHandler-> |
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413 GetRequiredAttributesL(requiredAttributes, aFilterUsingSelection, aFilterUsingCommandId, aCommandId); |
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414 |
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415 TInt attributeCount = requiredAttributes.Count(); |
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416 for (TInt i = 0; i < attributeCount; i++) |
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417 { |
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418 aAttributeContext.AddAttributeL(requiredAttributes[i]); |
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419 } |
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420 CleanupStack::PopAndDestroy(&requiredAttributes); |
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421 } |
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422 |
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423 // ----------------------------------------------------------------------------- |
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424 // HandleViewCommandL |
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425 // ----------------------------------------------------------------------------- |
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426 // |
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427 EXPORT_C TBool CGlxMediaListViewBase::HandleViewCommandL(TInt /*aCommand*/) |
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428 { |
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429 return EFalse; |
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430 } |
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431 |
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432 // ----------------------------------------------------------------------------- |
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433 // DoHandleCommandL |
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434 // ----------------------------------------------------------------------------- |
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435 // |
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436 EXPORT_C TInt CGlxMediaListViewBase::DoHandleCommandL(TInt aCommand) |
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437 { |
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438 // Pass the command to the deriving class |
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439 return HandleViewCommandL( aCommand ); |
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440 } |
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441 |