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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: CGlxContainerListBinding This class holds the list of |
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15 * tags/albums associated with a media item |
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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 |
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22 #include "glxcontainerlistbinding.h" // his class holds the list of tags/albums associated with a media item |
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23 |
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24 #include <glxfilterfactory.h> // for TGlxFilterFactory |
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25 #include <glxuistd.h> // for attribute priority |
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26 #include <mul/mulvisualitem.h> // Client need to use this class to add data in data model |
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27 |
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28 using namespace Alf; |
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29 |
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30 //CONSTANTS |
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31 const TInt KTagMediaListId = 0x2000D248; |
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32 const TInt KRangeOffset = 50; |
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33 |
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34 // ---------------------------------------------------------------------------- |
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35 // NewL |
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36 // ---------------------------------------------------------------------------- |
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37 // |
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38 CGlxContainerListBinding* CGlxContainerListBinding::NewL( const Alf::mulvisualitem::TVisualAttribute& aMulTag /*const char* const |
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39 aMulTag*/, const CMPXCollectionPath& aPath ) |
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40 { |
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41 CGlxContainerListBinding* self = CGlxContainerListBinding::NewLC( aMulTag, aPath); |
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42 CleanupStack::Pop( self ); |
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43 return self; |
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44 } |
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45 |
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46 |
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47 // ---------------------------------------------------------------------------- |
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48 // NewLC |
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49 // ---------------------------------------------------------------------------- |
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50 // |
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51 CGlxContainerListBinding* CGlxContainerListBinding::NewLC( const Alf::mulvisualitem::TVisualAttribute& aMulTag /*const char* const |
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52 aMulTag*/, const CMPXCollectionPath& aPath ) |
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53 { |
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54 CGlxContainerListBinding* self = new ( ELeave ) CGlxContainerListBinding(); |
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55 CleanupStack::PushL( self ); |
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56 self->ConstructL( aMulTag, aPath ); |
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57 return self; |
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58 } |
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59 |
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60 // ---------------------------------------------------------------------------- |
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61 // ConstructL |
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62 // ---------------------------------------------------------------------------- |
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63 // |
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64 void CGlxContainerListBinding::ConstructL( const Alf::mulvisualitem::TVisualAttribute& aMulTag /*const char* const aMulTag*/, |
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65 const CMPXCollectionPath& aPath ) |
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66 { |
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67 CGlxSingleTagBinding::BaseConstructL( aMulTag ); |
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68 iContainerPath = CMPXCollectionPath::NewL( aPath ); |
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69 |
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70 // attributes for Title of tags and albums |
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71 iFetchContext = CGlxDefaultAttributeContext::NewL(); |
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72 iFetchContext->AddAttributeL( KMPXMediaGeneralTitle ); |
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73 iFetchContext->SetRangeOffsets(KRangeOffset,KRangeOffset); |
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74 } |
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75 |
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76 // ---------------------------------------------------------------------------- |
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77 // Destructor |
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78 // ---------------------------------------------------------------------------- |
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79 // |
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80 CGlxContainerListBinding::~CGlxContainerListBinding() |
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81 { |
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82 CloseMediaList(); |
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83 } |
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84 |
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85 // --------------------------------------------------------------------------- |
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86 // PopulateT |
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87 // --------------------------------------------------------------------------- |
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88 // |
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89 void CGlxContainerListBinding::PopulateT( Alf::MulVisualItem& aItem, |
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90 const TGlxMedia& aMedia, TBool /*aIsFocused*/ ) const |
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91 { |
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92 const TInt KCommaLength = 2; |
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93 _LIT(KComma,","); |
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94 |
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95 //T is used for throws as per C++ standard.Hence used instead of "L" |
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96 //Ignoring this for code scanner warnings - Leaving functions called in non-leaving functions. |
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97 |
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98 if(!iContainerList) |
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99 { |
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100 CreateMediaListL( aMedia.Id() ); |
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101 } |
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102 |
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103 if( iContainerList ) |
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104 { |
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105 CGlxUStringConverter* stringConverter = CGlxUStringConverter::NewL(); |
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106 CleanupStack::PushL(stringConverter ); |
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107 |
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108 TInt tagListcount = iContainerList->Count(); |
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109 //if tags count is grater than 1 then display tags saperated by comma |
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110 if( tagListcount > 0 ) |
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111 { |
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112 HBufC* stringBuffer = NULL; |
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113 |
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114 for(TInt i=0; i < tagListcount; i++ ) |
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115 { |
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116 HBufC* string = NULL; |
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117 stringConverter->AsStringL( iContainerList->Item(i), |
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118 KMPXMediaGeneralTitle, NULL, string ); |
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119 if( string ) |
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120 { |
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121 if( stringBuffer ) |
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122 { |
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123 stringBuffer = stringBuffer->ReAlloc( stringBuffer->Length() + string->Length() ); |
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124 stringBuffer->Des().Append ( string->Des() ); |
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125 } |
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126 |
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127 if( !stringBuffer ) |
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128 { |
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129 stringBuffer = string->Alloc(); |
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130 } |
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131 |
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132 delete string; |
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133 string = NULL; |
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134 } |
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135 if( i < tagListcount -1 ) |
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136 { |
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137 if( stringBuffer ) |
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138 { |
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139 stringBuffer = stringBuffer->ReAlloc( stringBuffer->Length() + KCommaLength ); |
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140 stringBuffer->Des().Append( KComma ); |
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141 } |
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142 } |
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143 } |
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144 |
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145 if( stringBuffer ) |
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146 { |
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147 aItem.SetAttribute( MulTag(), *stringBuffer ); |
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148 delete stringBuffer; |
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149 stringBuffer = NULL; |
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150 } |
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151 } |
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152 else |
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153 { |
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154 aItem.SetAttribute( MulTag(), _L("") ); |
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155 } |
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156 CleanupStack::PopAndDestroy(stringConverter ); |
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157 } |
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158 |
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159 } |
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160 // --------------------------------------------------------------------------- |
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161 // CreateMediaListL |
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162 // --------------------------------------------------------------------------- |
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163 // |
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164 void CGlxContainerListBinding::CreateMediaListL(TGlxMediaId aMediaId) const |
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165 { |
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166 //create filter that excludes all containers that do not contain the specified item |
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167 CMPXFilter* itemFilter = TGlxFilterFactory::CreateExcludeContainersWithoutItemFilterL( aMediaId ); |
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168 CleanupStack::PushL(itemFilter); |
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169 |
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170 TGlxFilterProperties filterProperty; |
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171 filterProperty.iSortOrder = EGlxFilterSortOrderAlphabetical; |
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172 filterProperty.iSortDirection = EGlxFilterSortDirectionAscending; |
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173 //creates a combined filter, items will be sorted by the filters specified |
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174 CMPXFilter* filter = TGlxFilterFactory::CreateCombinedFilterL( filterProperty, |
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175 itemFilter, EFalse); |
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176 CleanupStack::PushL(filter); |
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177 //create media list |
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178 iContainerList = MGlxMediaList::InstanceL( *iContainerPath, TGlxHierarchyId(KTagMediaListId), filter ); |
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179 iContainerList->AddContextL( iFetchContext, KGlxFetchContextPriorityNormal ); |
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180 iContainerList->AddMediaListObserverL( const_cast<CGlxContainerListBinding*>(this)); |
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181 CleanupStack::PopAndDestroy(filter); |
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182 CleanupStack::PopAndDestroy(itemFilter); |
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183 } |
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184 // --------------------------------------------------------------------------- |
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185 // CloseMediaListL |
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186 // --------------------------------------------------------------------------- |
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187 // |
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188 void CGlxContainerListBinding::CloseMediaList() |
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189 { |
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190 if(iContainerList) |
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191 { |
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192 iContainerList->RemoveMediaListObserver( this ); |
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193 if (iFetchContext) |
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194 { |
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195 iContainerList->RemoveContext( iFetchContext ); |
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196 delete iFetchContext; |
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197 iFetchContext = NULL; |
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198 } |
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199 iContainerList->Close(); |
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200 } |
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201 if (iContainerPath) |
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202 { |
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203 delete iContainerPath; |
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204 iContainerPath= NULL; |
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205 } |
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206 } |
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207 |
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208 // --------------------------------------------------------------------------- |
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209 // HandleItemAddedL |
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210 // --------------------------------------------------------------------------- |
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211 // |
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212 void CGlxContainerListBinding::HandleItemAddedL( TInt /*aStartIndex*/, TInt /*aEndIndex*/, |
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213 MGlxMediaList* /*aList*/ ) |
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214 { |
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215 //No implementation |
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216 } |
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217 |
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218 // --------------------------------------------------------------------------- |
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219 // HandleItemRemovedL |
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220 // --------------------------------------------------------------------------- |
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221 // |
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222 void CGlxContainerListBinding::HandleItemRemovedL( TInt /*aStartIndex*/, |
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223 TInt /*aEndIndex*/, MGlxMediaList* /*aList*/ ) |
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224 { |
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225 //No implementation |
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226 } |
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227 |
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228 // --------------------------------------------------------------------------- |
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229 // HandleAttributesAvailableL |
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230 // --------------------------------------------------------------------------- |
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231 // |
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232 void CGlxContainerListBinding::HandleAttributesAvailableL( TInt /*aItemIndex*/, |
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233 const RArray<TMPXAttribute>& /*aAttributes*/, MGlxMediaList* aList ) |
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234 { |
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235 if( aList == iContainerList ) |
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236 { |
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237 Update(); |
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238 } |
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239 } |
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240 |
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241 // ---------------------------------------------------------------------------- |
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242 // HandleFocusChanged |
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243 // checks whether the focus has changed,returns the response status |
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244 // ---------------------------------------------------------------------------- |
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245 // |
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246 CGlxBinding::TResponse CGlxContainerListBinding::HandleFocusChanged( |
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247 TBool /*aIsGained*/ ) |
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248 { |
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249 //@todo - Need further implementation |
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250 //return aIsGained ? EUpdateRequested : ENoUpdateNeeded ; |
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251 //need to remove once bug ESPK-7G6GJX is fixed |
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252 return ENoUpdateNeeded ; |
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253 } |
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254 |
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255 // --------------------------------------------------------------------------- |
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256 // HandleFocusChangedL |
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257 // --------------------------------------------------------------------------- |
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258 // |
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259 void CGlxContainerListBinding::HandleFocusChangedL( NGlxListDefs::TFocusChangeType /*aType*/, |
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260 TInt /*aNewIndex*/, TInt /*aOldIndex*/, MGlxMediaList* /*aList*/ ) |
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261 { |
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262 //No implementation |
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263 } |
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264 |
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265 // --------------------------------------------------------------------------- |
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266 // HandleItemSelectedL |
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267 // --------------------------------------------------------------------------- |
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268 // |
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269 void CGlxContainerListBinding::HandleItemSelectedL(TInt /*aIndex*/, |
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270 TBool /*aSelected*/, MGlxMediaList* /*aList*/ ) |
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271 { |
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272 //No implementation |
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273 } |
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274 |
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275 // --------------------------------------------------------------------------- |
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276 // HandleMessageL |
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277 // --------------------------------------------------------------------------- |
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278 // |
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279 void CGlxContainerListBinding::HandleMessageL( const CMPXMessage& /*aMessage*/, |
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280 MGlxMediaList* /*aList*/ ) |
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281 { |
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282 //No implementation |
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283 } |
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284 |
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285 // --------------------------------------------------------------------------- |
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286 // HandleMediaL |
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287 // --------------------------------------------------------------------------- |
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288 // |
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289 void CGlxContainerListBinding::HandleMediaL( TInt /*aListIndex*/, |
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290 MGlxMediaList* /*aList*/ ) |
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291 { |
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292 //No implementation |
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293 } |
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294 |
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295 // --------------------------------------------------------------------------- |
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296 // HandleItemModifiedL |
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297 // --------------------------------------------------------------------------- |
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298 // |
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299 void CGlxContainerListBinding::HandleItemModifiedL( const RArray<TInt>& /*aItemIndexes*/, |
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300 MGlxMediaList* /*aList*/ ) |
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301 { |
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302 //No implementation |
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303 } |