photosgallery/viewframework/dataprovider/src/glxmulmodelproviderbase.cpp
changeset 0 4e91876724a2
child 14 ce1c7ad1f18b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/viewframework/dataprovider/src/glxmulmodelproviderbase.cpp	Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,570 @@
+/*
+* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Interface to Alf Objects  
+*
+*/
+
+
+
+
+#include "glxmulmodelproviderbase.h"
+
+#include <e32err.h>
+#include <alf/alfenv.h>
+#include <alf/alfevent.h>
+#include <alf/ialfwidgetfactory.h>
+#include <alf/alfwidgetenvextension.h>
+//#include <osn/ustring.h>
+#include <mul/imulwidget.h>
+#include <mul/mulevent.h>
+#include <mul/mulvisualitem.h>
+#include <glxlog.h>  //Logging
+#include <glxtracer.h>
+#include "glxbinding.h"
+#include "glxcommandbindingutility.h"
+#include <glxnavigationalstate.h>
+#include <glxnavigationalstatedefs.h>
+
+#include <data_caging_path_literals.hrh>// for KDC_APP_RESOURCE_DIR
+#include <glxuiutilities.rsg>
+#include <glxgeneraluiutilities.h>
+#include <glxtexturemanager.h>
+#include <glxicons.mbg>
+#include <glxuistd.h>
+#include <mul/imulcoverflowwidget.h>               // An interface for Multimedia coverflow Widget
+
+using namespace Alf;
+
+static const char* const KListWidget = "ListWidget";
+static const char* const KGridWidget = "GridWidget";
+static const char* const KCoverFlowWidget = "CoverflowWidget";
+
+//@todo to be uncommented when using command binding
+//#include "glxboundcommand.h"
+
+// ----------------------------------------------------------------------------
+// BaseConstructL
+// ----------------------------------------------------------------------------
+//
+void CGlxMulModelProviderBase::BaseConstructL(
+     CAlfEnv& aEnv, 
+     Alf::mulwidget::TLogicalTemplate aDefaultTemplate,
+     TInt aDataWindowSize )
+    {
+    TRACER("CGlxMulModelProviderBase::BaseConstructL");
+   
+    // Create navigational state 
+    iNavigationalState = CGlxNavigationalState::InstanceL();
+
+    iEnv = &aEnv;
+
+    iDefaultTemplate = aDefaultTemplate;
+        
+    iDataWindowSize = aDataWindowSize;
+
+    }
+    
+// ----------------------------------------------------------------------------
+// Constructor
+// ----------------------------------------------------------------------------
+//
+CGlxMulModelProviderBase::CGlxMulModelProviderBase( IMulWidget& aWidget )
+        : iWidget( aWidget ),iPreviousFocusIndex(-1)
+    {
+    }
+
+// ----------------------------------------------------------------------------
+// Destructor
+// ----------------------------------------------------------------------------
+//
+CGlxMulModelProviderBase::~CGlxMulModelProviderBase()
+    { 
+    TRACER("CGlxMulModelProviderBase::~CGlxMulModelProviderBase");
+    //   remove event handler
+	iWidget.RemoveEventHandler( *this );
+    if ( iNavigationalState )
+          {
+          iNavigationalState->Close();
+          }
+	}    
+ 
+// ----------------------------------------------------------------------------
+// HandleItemAddedL
+// ----------------------------------------------------------------------------
+// 
+void CGlxMulModelProviderBase::HandleItemAddedL( TInt /*aStartIndex*/, TInt 
+	/*aEndIndex*/, MGlxMediaList* /*aList*/ )
+	{
+
+	}
+
+// ----------------------------------------------------------------------------
+// HandleItemRemoved
+// ----------------------------------------------------------------------------
+//	
+void CGlxMulModelProviderBase::HandleItemRemovedL( TInt /*aStartIndex*/, TInt 
+	/*aEndIndex*/, MGlxMediaList* /*aList*/ )
+	{
+
+	}
+
+// ----------------------------------------------------------------------------
+// HandleAttributesAvailableL
+// ----------------------------------------------------------------------------
+//	
+void CGlxMulModelProviderBase::HandleAttributesAvailableL( TInt /*aItemIndex*/, 
+	const RArray<TMPXAttribute>& /*aAttributes*/, MGlxMediaList* /*aList*/ )
+	{
+
+	}
+	
+// ----------------------------------------------------------------------------
+// HandleFocusChangedL
+// ----------------------------------------------------------------------------
+//	
+void CGlxMulModelProviderBase::HandleFocusChangedL( NGlxListDefs::
+	TFocusChangeType /*aType*/, TInt /*aNewIndex*/, TInt /*aOldIndex*/, MGlxMediaList* /*aList*/ )
+	{
+
+	}
+
+// ----------------------------------------------------------------------------
+// HandleItemSelected
+// ----------------------------------------------------------------------------
+//	
+void CGlxMulModelProviderBase::HandleItemSelectedL(TInt aIndex, 
+	TBool aSelected, MGlxMediaList* /*aList*/ )
+	{
+	TRACER("CGlxMulModelProviderBase::HandleItemSelectedL");
+	std::vector<int> itemIndex;	
+	itemIndex.push_back( aIndex);	
+	// changed code ---statr
+	if(aSelected) 
+	    {
+	    iModel->SetMarkedIndices(MulWidgetDef::EMulMark,itemIndex);
+	    }
+	else 
+	    {	
+	    iModel->SetMarkedIndices(MulWidgetDef::EMulUnmark,itemIndex);	
+	    }
+	}
+
+// ----------------------------------------------------------------------------
+// accept
+// ----------------------------------------------------------------------------
+//	
+bool CGlxMulModelProviderBase::accept( Alf::CAlfWidgetControl& /*aControl*/, const 
+	TAlfEvent& /*aEvent*/ ) const
+	{
+	TRACER("CGlxMulModelProviderBase::accept");
+	//Need implementation
+	return NULL;
+	}
+
+// ----------------------------------------------------------------------------
+// offerEvent
+// ----------------------------------------------------------------------------
+//
+AlfEventStatus CGlxMulModelProviderBase::offerEvent( Alf::CAlfWidgetControl& 
+		/*aControl*/, const TAlfEvent& aEvent )
+	{
+	TRACER("CGlxMulModelProviderBase::offerEvent");
+	AlfEventStatus response = EEventNotHandled;
+	if ( aEvent.IsCustomEvent() )
+		{
+		switch ( aEvent.CustomParameter() ) 
+			{
+			case KAlfActionIdDeviceLayoutChanged:
+				{
+				HandleOrientationChanged();
+				response = EEventNotHandled;
+				}
+				break;
+			case Alf::ETypeHighlight:
+				{
+				if ( !iWithinFocusChangeCall )
+					{
+					// iWithinFocusChangeCall = ETrue;
+					HandleFocusChanged( FocusIndex(), iPreviousFocusIndex );
+					//iPreviousFocusIndex = FocusIndex();
+					//iWithinFocusChangeCall = EFalse;
+					}
+				response = EEventHandled;
+				}
+				break;
+			default:
+				break;
+			}
+		}
+	return response;
+	}
+
+// ----------------------------------------------------------------------------
+// setActiveStates
+// ----------------------------------------------------------------------------
+//
+void CGlxMulModelProviderBase::setActiveStates( unsigned int /*aStates*/ ) 
+    {
+    
+    }
+
+// ----------------------------------------------------------------------------
+// setEventHandlerData
+// ----------------------------------------------------------------------------
+//  
+void CGlxMulModelProviderBase::setEventHandlerData( const Alf::AlfWidgetEventHandlerInitData& /*aData*/ )
+    {
+    
+    }
+
+// ----------------------------------------------------------------------------
+// eventHandlerData
+// ----------------------------------------------------------------------------
+//  
+Alf::AlfWidgetEventHandlerInitData* CGlxMulModelProviderBase::eventHandlerData() 
+    {
+    TRACER("CGlxMulModelProviderBase::eventHandlerData");
+    return NULL; 
+    }
+
+// ----------------------------------------------------------------------------
+// makeInterface
+// ----------------------------------------------------------------------------
+//    
+Alf::IAlfInterfaceBase* CGlxMulModelProviderBase::makeInterface(const Alf::IfId& /*aType */)
+    {
+    TRACER("CGlxMulModelProviderBase::makeInterface");
+    return this;
+    }
+
+// ----------------------------------------------------------------------------
+// eventHandlerType
+// ----------------------------------------------------------------------------
+//    
+IAlfWidgetEventHandler::AlfEventHandlerType CGlxMulModelProviderBase::
+    eventHandlerType() 
+	{
+	TRACER("CGlxMulModelProviderBase::eventHandlerType");
+	// To Avoid Compiler warning
+	return IAlfWidgetEventHandler::ELogicalEventHandler;
+	}
+
+// ----------------------------------------------------------------------------
+// eventExecutionPhase
+// ----------------------------------------------------------------------------
+//    
+IAlfWidgetEventHandler::AlfEventHandlerExecutionPhase 
+    CGlxMulModelProviderBase::eventExecutionPhase()
+	{
+	TRACER("CGlxMulModelProviderBase::eventExecutionPhase");
+	return EBubblingPhaseEventHandler;
+	}
+
+// ----------------------------------------------------------------------------
+// UpdateItemL
+// ----------------------------------------------------------------------------
+//	
+void CGlxMulModelProviderBase::UpdateItems( TInt aIndex, TInt aCount )
+    {
+    TRACER("CGlxMulModelProviderBase::UpdateItems");
+    try 
+        {
+        iModel->Update( aIndex, aCount );
+        }
+    catch (...)
+        {
+        throw std::bad_alloc();
+        }
+    }
+
+// ----------------------------------------------------------------------------
+// SetDataT
+// ----------------------------------------------------------------------------
+//	
+void CGlxMulModelProviderBase::SetDataT( const CGlxBinding& aBinding,
+        const TGlxMedia& aMedia, TInt aAtIndex )
+    {
+    TRACER("CGlxMulModelProviderBase::SetDataT");
+    iModel->SetData( aAtIndex, CreateItemT( aBinding, aMedia, 
+        IsFocused( aAtIndex ) ) );
+    }
+    
+// ----------------------------------------------------------------------------
+// CreateItemT
+// ----------------------------------------------------------------------------
+//    
+auto_ptr<MulVisualItem> CGlxMulModelProviderBase::CreateItemT( 
+    const CGlxBinding& aBinding, const TGlxMedia& aMedia, TBool aIsFocused )     
+    {
+    TRACER("CGlxMulModelProviderBase::CreateItemT");
+    auto_ptr<MulVisualItem> item( new ( EMM ) MulVisualItem() );
+    aBinding.PopulateT( *item, aMedia, aIsFocused );
+    return item;
+    }
+// ----------------------------------------------------------------------------
+// CreateModelL
+// ----------------------------------------------------------------------------
+//    
+    
+void CGlxMulModelProviderBase::CreateModelL()
+    {
+    
+    const char* KLoadNameModel( "mulmodel" );
+    try 
+        {
+
+        IAlfWidgetFactory& widgetFactory = AlfWidgetEnvExtension::widgetFactory(*iEnv);
+
+        std::auto_ptr< Alf::IMulModel > model( 
+                widgetFactory.createModel< IMulModel >( KLoadNameModel ) );
+        iModel = model.release(); 
+        if( iDataWindowSize > 0 )
+            {
+            iModel->SetDataWindow(iDataWindowSize);
+            }
+        iModel->SetDataProvider( *this );
+        iModel->SetTemplate( iDefaultTemplate );
+        }
+    catch (...)
+        {
+        User::Leave( KErrNoMemory );
+        }
+    }
+// ----------------------------------------------------------------------------
+// InsertItemsL
+// ----------------------------------------------------------------------------
+//    
+    
+void CGlxMulModelProviderBase::InsertItemsL( TInt aIndex, TInt aCount, TInt aMediaListFocusIndex )
+    {
+    TRACER("CGlxMulModelProviderBase::InsertItemsL");
+    // The order of calling should be Model->Insert(..), 
+    // Model->SetHighlight(..) and Widget.SetModel(..)
+    // Change the order once bug EPBA-7JRDXV ( SetModel Crashes if highlight 
+    // index is set >0 before setting model. )is fixed. 
+    if(!iWidget.model())
+        {
+        CreateModelL();
+        }
+    
+    if(iWidget.model())
+        {
+        iModel->SetTemplate( iDefaultTemplate );
+        }
+    
+    iModel->Insert( aIndex, aCount );     
+    
+    if( aMediaListFocusIndex >= 0 )
+        {
+        SetFocusIndex( aMediaListFocusIndex );
+        }
+    
+    if(!iWidget.model())
+        {
+        iWidget.SetModel( iModel->Accessor() );
+        
+        CGlxUiUtility* uiUtility = CGlxUiUtility::UtilityL();
+        CleanupClosePushL( *uiUtility );
+        TSize defaultIconSize = uiUtility->GetGridIconSize();
+        TFileName resFile(KDC_APP_BITMAP_DIR);
+        resFile.Append(KGlxIconsFilename);
+        TInt defaultTextureId =  uiUtility->
+                        GlxTextureManager().CreateIconTextureL( 
+                        EMbmGlxiconsQgn_prop_image_notcreated, resFile, 
+                        defaultIconSize ).Id();
+                    
+        static_cast<IMulCoverFlowWidget&>(iWidget).SetDefaultImage( defaultTextureId ) ;
+        CleanupStack::PopAndDestroy( uiUtility );
+        }    
+
+    }
+
+// ----------------------------------------------------------------------------
+// RemoveItem
+// ----------------------------------------------------------------------------
+//    
+void CGlxMulModelProviderBase::RemoveItems( TInt aIndex, TInt aCount )
+    {
+    TRACER("CGlxMulModelProviderBase::RemoveItems");
+    // RemoveItems does not throw according to model documentation
+    iModel->Remove( aIndex, aCount );
+    }    
+
+// ----------------------------------------------------------------------------
+// SetFocusIndex
+// ----------------------------------------------------------------------------
+//    
+void CGlxMulModelProviderBase::SetFocusIndex( TInt aIndex )
+    {
+    TRACER("CGlxMulModelProviderBase::SetFocusIndex");
+    iModel->SetHighlight( aIndex );
+    }
+// ----------------------------------------------------------------------------
+// IsFocused
+// ----------------------------------------------------------------------------
+//
+
+TBool CGlxMulModelProviderBase::IsFocused( TInt aIndex ) const 
+    {
+    TRACER("CGlxMulModelProviderBase::IsFocused");
+    return aIndex == FocusIndex() && aIndex != LAST_INDEX;
+    }
+
+
+
+// ----------------------------------------------------------------------------
+// FocusIndex
+// ----------------------------------------------------------------------------
+//
+
+TInt CGlxMulModelProviderBase::FocusIndex() const
+    {
+    TRACER("CGlxMulModelProviderBase::FocusIndex");
+    TInt index = 0;
+    /// @todo use multiline widget instead of this widget hack. Currently model does not have interface for highlight.
+    
+    // We are comparing depending on teh widget name which we are setting during the 
+    // widget creation, but for that we had to do dynamic_cast which fails on hardware
+    // and is not the preffered way of doing, so as of now we have to check using widget name
+    
+    if(UString(KListWidget) == UString(iWidget.widgetName() ) )
+        {
+        index = iModel->Highlight();
+        }
+    else if ( UString(KGridWidget) == UString(iWidget.widgetName() ) )
+        {
+        index = iModel->Highlight();
+        }
+    else if (UString(KCoverFlowWidget) == UString(iWidget.widgetName() ) )
+        {
+        index = iModel->Highlight();
+        // Check if Model count is zero in FS view, activate back grid view.
+        if (iModel->Count() ==0)
+            {
+            TRAP_IGNORE( iNavigationalState->ActivatePreviousViewL() );    
+            }
+        }
+    else
+        {
+        return KErrGeneral;
+        }
+    
+    return index;
+    }
+    
+// ----------------------------------------------------------------------------
+// HandleMessageL
+// ----------------------------------------------------------------------------
+//    
+ void CGlxMulModelProviderBase::HandleMessageL( const CMPXMessage& /*aMessage*/, 
+	MGlxMediaList* /*aList*/ )
+    {
+    
+    }
+  
+// ----------------------------------------------------------------------------
+// HandleError
+// ----------------------------------------------------------------------------
+//
+void CGlxMulModelProviderBase::HandleError( TInt /*aError*/ ) 
+    {
+    
+    }
+  
+// ----------------------------------------------------------------------------
+// HandleCommandCompleteL
+// ----------------------------------------------------------------------------
+//  
+void CGlxMulModelProviderBase::HandleCommandCompleteL( TAny* /*aSessionId*/, CMPXCommand* /*aCommandResult*/, 
+	TInt /*aError*/, MGlxMediaList* /*aList*/ )
+    {
+    
+    }
+  
+// ----------------------------------------------------------------------------
+// HandleMediaL
+// ----------------------------------------------------------------------------
+//  
+void CGlxMulModelProviderBase::HandleMediaL( TInt /*aListIndex*/, MGlxMediaList* /*aList*/ )
+    {
+    
+    }
+  
+// ----------------------------------------------------------------------------
+// HandleItemModifiedL
+// ----------------------------------------------------------------------------
+//  
+void CGlxMulModelProviderBase::HandleItemModifiedL( const RArray<TInt>& /*aItemIndexes*/,
+	MGlxMediaList* /*aList*/ )
+    {
+    
+    }
+
+// ----------------------------------------------------------------------------
+// HandleFocusChanged
+// ----------------------------------------------------------------------------
+//
+//@todo: Implementation to be done later depending on the scenario	
+void CGlxMulModelProviderBase::HandleFocusChanged( TInt /*aNewFocusIndex*/, 
+			TInt /*aPreviousFocusIndex*/ )
+	{
+	// default implementation empty
+	}
+
+  
+   
+// ----------------------------------------------------------------------------
+// BoundCommand
+// ----------------------------------------------------------------------------
+//
+MGlxBoundCommand* CGlxMulModelProviderBase::BoundCommand( TInt aVisualItemIndex ) const
+    {
+    TRACER("CGlxMulModelProviderBase::BoundCommand");
+   	if ( iModel->Count() > 0 )
+        {
+        return GlxCommandBindingUtility::Get( Item( aVisualItemIndex ) );
+        }
+    return NULL;
+    }
+    
+// ----------------------------------------------------------------------------
+// Item
+// ----------------------------------------------------------------------------
+//
+const Alf::MulVisualItem& CGlxMulModelProviderBase::Item( TInt aIndex ) const
+	{
+	TRACER("CGlxMulModelProviderBase::Item");
+	ASSERT( aIndex >= 0 && aIndex < iModel->Count() );
+	return *(iModel->Data( aIndex ));
+	}
+
+//-----------------------------------------------------------------------------
+// HandleResolutionChanged
+//-----------------------------------------------------------------------------
+//
+void CGlxMulModelProviderBase::HandleOrientationChanged()
+	{
+	
+	}
+
+//-----------------------------------------------------------------------------
+// HandleResolutionChanged
+//-----------------------------------------------------------------------------
+//
+void CGlxMulModelProviderBase::AddWidgetEventHandler()
+    {
+    iWidget.AddEventHandler( *this );
+    }
+
+//EOF