author | Stefan Karlsson <stefan.karlsson@nokia.com> |
Sun, 28 Mar 2010 16:36:22 +0100 | |
branch | CompilerCompatibility |
changeset 15 | d08a2bd7f23a |
parent 0 | 4e91876724a2 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Interface to Alf Objects |
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* |
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*/ |
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#ifndef _GLXMULMODELPROVIDERBASE_H_ |
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#define _GLXMULMODELPROVIDERBASE_H_ |
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#include<e32base.h> // Container Base Class |
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#include <alf/ialfwidgeteventhandler.h> // The interface for event handlers used by widget controls |
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#include <mglxmedialistobserver.h> // Observes for changes in media list |
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#include <mul/imulmodel.h> // An interface for the data model |
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#include <mul/imulmodelprovider.h> // An interface for requesting the data provider for data |
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#include <mul/imulwidget.h> |
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//constants |
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static const TInt LAST_INDEX = -1; |
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class CAlfEnv; // This is the UI Accelerator Toolkit environment object |
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class CGlxBinding; // The binding is created by the binding set factory |
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class MGlxBoundCommand; // Handles user commands |
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class TGlxMedia; // Reference to a media item in the item pool |
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class CGlxNavigationalState; // Class that stores the navigational state of the application |
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namespace Alf |
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{ |
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class IMulModel; // An interface for the data model |
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class IMulWidget; // An interface for all Multimedia widgets |
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class MulVisualItem; // Client need to use this class to add data in data model |
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} |
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NONSHARABLE_CLASS( CGlxMulModelProviderBase ) : public CBase, public Alf::IAlfWidgetEventHandler, |
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public MGlxMediaListObserver, public Alf::IMulModelProvider |
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{ |
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protected: |
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/** |
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* Constructor |
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* @param aWidget The widget to which the model is to be set |
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*/ |
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CGlxMulModelProviderBase( Alf::IMulWidget& aWidget ); |
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/** |
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* BaseConstructL |
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* @param aEnv Alf environment |
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* @param aDefaultTemplate The default template of the widget |
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*/ |
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void BaseConstructL( CAlfEnv& aEnv, Alf::mulwidget::TLogicalTemplate aDefaultTemplate, TInt aDataWindowSize ); |
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/** |
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* Destructor |
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*/ |
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~CGlxMulModelProviderBase(); |
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/** |
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* CreateModelL |
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*/ |
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void CreateModelL(); |
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/** |
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* InsertItemsL |
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* @param aIndex Start index |
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* @param aCount Number of items to insert |
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* @param aMediaListFocusIndex Focus Index to set in Model |
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*/ |
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void InsertItemsL( TInt aIndex, TInt aCount, TInt aMediaListFocusIndex = NULL ); |
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/** |
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* RemoveItem |
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* @param aAtIndex media list index |
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*/ |
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void RemoveItems( TInt aIndex, TInt aCount ); |
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/** |
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* UpdateItemL |
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* @param aBinding Binding used to update the item |
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* @param aMedia media item which has the updated data |
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* @param aAtIndex media list index |
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*/ |
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void SetDataT( const CGlxBinding& aBinding, const TGlxMedia& aMedia, |
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TInt aAtIndex ); |
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/// @todo docs |
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void UpdateItems( TInt aIndex, TInt aCount ); |
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/** |
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* FocusIndex |
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*/ |
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TInt FocusIndex() const; |
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/** |
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* BoundCommand |
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*@param aVisualItemIndex index of visual item |
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*@return MGlxBoundCommand for that visual item |
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*/ |
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MGlxBoundCommand* BoundCommand( TInt aVisualItemIndex ) const; |
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// @todo docs |
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void SetFocusIndex( TInt aIndex ); |
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void AddWidgetEventHandler(); |
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/** |
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* HandleOrientationChanged |
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* Icon Size change notification to be implemented dependent on Orientation |
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*/ |
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virtual void HandleOrientationChanged(); |
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private: |
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/** |
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* CreateItemT |
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* @param aBinding Binding used to update the item |
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* @param aMedia media item which has the updated data |
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* @param aIsFocused |
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*/ |
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std::auto_ptr<Alf::MulVisualItem> CreateItemT( const CGlxBinding& aBinding, |
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const TGlxMedia& aMedia, TBool aIsFocused ); |
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/** |
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* IsFocused |
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* @param aIndex Media list index |
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*/ |
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TBool IsFocused( TInt aIndex ) const; |
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// From MGlxMediaListObserver |
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void HandleItemAddedL( TInt aStartIndex, TInt aEndIndex, MGlxMediaList* aList ); |
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void HandleItemRemovedL( TInt aStartIndex, TInt aEndIndex, MGlxMediaList* aList ); |
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void HandleAttributesAvailableL( TInt aItemIndex, |
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const RArray<TMPXAttribute>& aAttributes, MGlxMediaList* aList ); |
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void HandleFocusChangedL( NGlxListDefs::TFocusChangeType aType, |
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TInt aNewIndex, TInt aOldIndex, MGlxMediaList* aList ); |
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void HandleItemSelectedL(TInt aIndex, TBool aSelected, MGlxMediaList* aList ); |
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void HandleMessageL( const CMPXMessage& aMessage, MGlxMediaList* aList ); |
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void HandleError( TInt aError ); |
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void HandleCommandCompleteL( TAny* /*aSessionId*/, CMPXCommand* aCommandResult, TInt aError, |
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MGlxMediaList* aList ); |
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void HandleMediaL( TInt aListIndex, MGlxMediaList* aList ); |
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void HandleItemModifiedL( const RArray<TInt>& aItemIndexes, MGlxMediaList* aList ); |
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// From IAlfWidgetEventHandler |
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bool accept( Alf::CAlfWidgetControl& aControl, const TAlfEvent& aEvent ) const; |
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Alf::AlfEventStatus offerEvent( Alf::CAlfWidgetControl& aControl, const TAlfEvent& aEvent ); |
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void setActiveStates( unsigned int /*aStates*/ ); |
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void setEventHandlerData( const Alf::AlfWidgetEventHandlerInitData& /*aData*/ ); |
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Alf::AlfWidgetEventHandlerInitData* eventHandlerData(); |
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Alf::IAlfInterfaceBase* makeInterface(const Alf::IfId& /*aType */); |
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AlfEventHandlerType eventHandlerType() ; |
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AlfEventHandlerExecutionPhase eventExecutionPhase() ; |
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/** |
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* HandleFocusChanged |
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* Focus change notification to implemented class |
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*/ |
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virtual void HandleFocusChanged( TInt aNewFocusIndex, TInt aPreviousFocusIndex ); |
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/** |
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* Item |
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*@param aIndex index of visual item |
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*@return MulVisualItem the visual item at that index |
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*/ |
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const Alf::MulVisualItem& Item( TInt aIndex ) const; |
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private: |
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//The widget to which the model will be set |
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/// Never expose this widget to any other class so that the osn-symbian interface |
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/// is minimised to here. (i.e., try/catch vs. trap/leave) |
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Alf::IMulWidget& iWidget; |
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//Owned: Model |
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/// Never expose this model to any other class so that the osn-symbian interface |
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/// is minimised to here. (i.e., try/catch vs. trap/leave) |
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Alf::IMulModel* iModel; |
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TBool iWithinFocusChangeCall; |
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//previous focus index |
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TInt iPreviousFocusIndex; |
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CAlfEnv* iEnv; |
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Alf::mulwidget::TLogicalTemplate iDefaultTemplate; |
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TInt iDataWindowSize; |
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// Create navigational state |
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CGlxNavigationalState* iNavigationalState; |
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}; |
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#endif // _GLXMULMODELPROVIDERBASE_H_ |