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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: Implementation class for Media data provider. |
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15 * providign the data to the clients |
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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 #ifndef _GLXMEDIALISTMULMODELPROVIDERIMPL_H_ |
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23 #define _GLXMEDIALISTMULMODELPROVIDERIMPL_H_ |
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24 |
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25 #include <e32base.h> // Container Base Class |
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26 #include "glxmulmodelproviderbase.h" // DataProvider Base |
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27 #include "mglxbindingobserver.h" // Notifies that binding has changed |
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28 |
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29 namespace Alf |
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30 { |
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31 class IMulWidget; // An interface for all Multimedia widgets |
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32 } |
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33 |
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34 // Forward declarations |
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35 class TGlxMulBindingSetFactory; // Create binding set |
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36 class CGlxAttributeRequirements; // This class will set the required attribute to the medialist |
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37 class CAlfEnv; // This is the UI Accelerator Toolkit environment object |
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38 class MGlxMediaList; // Interface for reading lists of media items |
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39 class CGlxBindingSet; // basically holds the bindings required to populate the visual item. |
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40 class CGlxResolutionUtility; // Singleton containing resolution utility methods |
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41 class CGlxUiUtility; // lib glxalfutils.lib ; Alf utils |
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42 |
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43 /** |
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44 * CGlxMediaListMulModelProviderImpl |
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45 * The actual implemntation for providign the data to the clients is done here |
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46 */ |
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47 NONSHARABLE_CLASS( CGlxMediaListMulModelProviderImpl ) : public CGlxMulModelProviderBase, |
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48 public MGlxBindingObserver |
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49 { |
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50 |
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51 public: |
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52 /** |
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53 * The medialist data provider uses this API to create the provider impl |
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54 * @param aEnv The Alf Environment |
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55 * @param aWidget The widget being used by client for which the model has to be set |
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56 * @param aMediaList The instance of medialist which provides data for the model |
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57 * @param aFactory The instance of the bindingset factory |
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58 * @param aDefaultTemplate The template that is being used for the widget. |
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59 */ |
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60 static CGlxMediaListMulModelProviderImpl* NewL( CAlfEnv& aEnv, |
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61 Alf::IMulWidget& aWidget, |
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62 MGlxMediaList& aMediaList, |
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63 const TGlxMulBindingSetFactory& aFactory, |
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64 Alf::mulwidget::TLogicalTemplate aDefaultTemplate, |
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65 TInt aDataWindowSize ); |
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66 |
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67 /** |
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68 * Destructor |
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69 */ |
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70 ~CGlxMediaListMulModelProviderImpl(); |
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71 |
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72 private: |
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73 /** |
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74 * Constructor |
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75 * @param aWidget The widget being used by client for which the model has to be set |
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76 * @param aMediaList The instance of medialist which provides data for the model |
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77 */ |
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78 CGlxMediaListMulModelProviderImpl( Alf::IMulWidget& aWidget, MGlxMediaList& aMediaList ); |
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79 |
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80 /** |
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81 * ConstructL |
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82 * @param aEnv The Alf Environment |
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83 * @param aFactory The instance of the bindingset factory |
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84 * @param aDefaultTemplate The template that is being used for the widget. |
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85 */ |
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86 void ConstructL( CAlfEnv& aEnv, |
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87 const TGlxMulBindingSetFactory& aFactory, |
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88 Alf::mulwidget::TLogicalTemplate aDefaultTemplate, |
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89 TInt aDataWindowSize ); |
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90 |
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91 /** |
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92 * Helper function used be HandleError |
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93 * @param aError the error code to handle. |
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94 */ |
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95 void DoHandleErrorL( TInt aError ); |
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96 |
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97 // From MGlxBindingObserver |
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98 void HandleBindingChanged( const CGlxBinding& aBinding ); |
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99 |
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100 void HandleOrientationChanged(); |
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101 // From CGlxMulModelProviderBase |
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102 void HandleFocusChanged(TInt aNewFocusIndex, TInt aPreviousFocusIndex); |
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103 // From MGlxMediaListObserver |
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104 void HandleItemAddedL( TInt aStartIndex, TInt aEndIndex, MGlxMediaList* aList ); |
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105 void HandleItemRemovedL( TInt aStartIndex, TInt aEndIndex, MGlxMediaList* aList ); |
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106 void HandleAttributesAvailableL( TInt aItemIndex, |
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107 const RArray<TMPXAttribute>& aAttributes, MGlxMediaList* aList ); |
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108 void HandleFocusChangedL( NGlxListDefs::TFocusChangeType aType, |
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109 TInt aNewIndex, TInt aOldIndex, MGlxMediaList* aList ); |
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110 void HandleError( TInt aError ); |
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111 //Bug fix for PKAA-7NRBYZ |
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112 void HandleItemModifiedL( const RArray<TInt>& aItemIndexes, MGlxMediaList* aList ); |
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113 |
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114 // From IMulModelProvider |
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115 void ProvideData (int aIndex, int aCount, Alf::MulDataPath aPath); |
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116 private: |
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117 |
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118 MGlxMediaList& iMediaList; |
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119 CGlxBindingSet* iBindingSet; // own |
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120 TBool iIsReleventAttribute; |
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121 CGlxAttributeRequirements* iAttributeRequirements; // own |
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122 CGlxResolutionUtility* iResolutionUtility; |
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123 Alf::IMulWidget& iWidget; |
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124 CGlxUiUtility* iUiUtility; |
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125 |
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126 }; |
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127 |
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128 #endif // _GLXMEDIALISTMULMODELPROVIDERIMPL_H_ |
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129 |
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130 |