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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: Media List View Base
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*
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*/
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#include "glxmedialistviewbase.h"
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#include <mpxcollectionutility.h>
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#include <glxcollectionpluginimageviewer.hrh>
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#include <glxcollectionpluginalbums.hrh>
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#include <glxcommandhandler.h>
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#include <glxassert.h>
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#include <glxgallery.hrh>
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#include <glxattributecontext.h>
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#include <glxuistd.h>
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#include <glxfetchcontextremover.h>
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#include <glxcommandhandlers.hrh>
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#include <AknUtils.h>
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#include <glxtracer.h> // For Logs
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#include <glxattributeretriever.h>
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#include "glxtitlefetcher.h"
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#include "glxmedialistfactory.h"
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#include "mglxmedialist.h"
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_LIT(KBlankTitle," ");
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// -----------------------------------------------------------------------------
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// Constructor
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// -----------------------------------------------------------------------------
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//
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EXPORT_C CGlxMediaListViewBase::CGlxMediaListViewBase()
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{
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}
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// -----------------------------------------------------------------------------
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// MLViewBaseConstructL
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void CGlxMediaListViewBase::MLViewBaseConstructL(
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MGlxMediaListFactory* aMediaListFactory,
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const TDesC& aTitle,TBool aEnableMiddleSoftkey)
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{
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iMediaListFactory = aMediaListFactory;
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iCollectionUtility = MMPXCollectionUtility::NewL(NULL, KMcModeDefault);
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iEnableMidddleSoftkey = aEnableMiddleSoftkey;
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iSelectionIterator.SetRange(KMaxTInt);
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if (aTitle.Length() > 0)
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{
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iFixedTitle = aTitle.AllocL();
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}
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if (iUiUtility->IsPenSupported())
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{
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// Responsible for controlling the ui states of toolbar
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// Create ToolbarController only for touch supported devices.
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iToolbarControl = CGlxToolbarController::NewL();
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}
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else
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{
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// Responsible for controlling the middle softkey if enabled.
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// Create Middle Softkey Controller only for non-touch devices
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iCbaControl = CGlxMSKController::NewL();
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}
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}
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// -----------------------------------------------------------------------------
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// Destructor
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// -----------------------------------------------------------------------------
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//
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EXPORT_C CGlxMediaListViewBase::~CGlxMediaListViewBase()
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{
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CloseMediaList();
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if ( iCollectionUtility )
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{
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iCollectionUtility->Close();
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}
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delete iFixedTitle;
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delete iTitleFetcher;
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if (iPreloadContextForCommandHandlers)
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{
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delete iPreloadContextForCommandHandlers;
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}
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if( iCbaControl )
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{
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delete iCbaControl;
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}
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if( iToolbarControl )
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{
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delete iToolbarControl;
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}
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}
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// -----------------------------------------------------------------------------
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// MediaList
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// -----------------------------------------------------------------------------
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//
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EXPORT_C MGlxMediaList& CGlxMediaListViewBase::MediaList()
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{
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GLX_ASSERT_ALWAYS( iMediaList, Panic( EGlxPanicNullMediaList ),
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"Media list has been closed" );
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return *iMediaList;
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}
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// -----------------------------------------------------------------------------
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// DoViewActivateL
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void CGlxMediaListViewBase::DoViewActivateL(
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const TVwsViewId& aPrevViewId, TUid aCustomMessageId,
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const TDesC8& aCustomMessage)
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{
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TRACER ("CGlxMediaListViewBase::DoViewActivateL()");
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iUiUtility->SetAppOrientationL( EGlxOrientationDefault );
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// current navigational state
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CMPXCollectionPath* navigationalState =
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iCollectionUtility->Collection().PathL();
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CleanupStack::PushL( navigationalState );
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if ( iMediaList )
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{
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// may need to refresh the media list if it has got out of sync
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// with the current navigational state, e.g. when jumping back two views
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// instead of just one, the intermediate view's media list will not have
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// been closed so if that view is subsequently re-opened its media list
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// could contain out of date items
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CMPXCollectionPath* path = iMediaList->PathLC();
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// current navigational state
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// current node id in UI Hierarchy
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TMPXItemId navStateNodeId =
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navigationalState->Id( navigationalState->Levels() - 2 );
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// current media list's node id in UI hierarchy
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TMPXItemId mediaListNodeId = path->Id( path->Levels() - 2 );
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if ( mediaListNodeId != navStateNodeId )
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{
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// the node ids are out of synch so close the media list
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// for it to be recreated later on
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CloseMediaList();
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}
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CleanupStack::PopAndDestroy( path );
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}
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if (!iMediaList && iMediaListFactory)
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{
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iMediaList
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= &iMediaListFactory->CreateMediaListL(*iCollectionUtility);
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if ((navigationalState->Id() != TMPXItemId(
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KGlxCollectionPluginAlbumsImplementationUid)))
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{
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iPreloadContextForCommandHandlers
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= new (ELeave) CGlxAttributeContext(&iSelectionIterator);
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TInt commandHandlerCount = iCommandHandlerList.Count();
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for (TInt i = 0; i < commandHandlerCount; i++)
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{
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DoPrepareCommandHandlerL(iCommandHandlerList[i]);
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}
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iMediaList->AddContextL(iPreloadContextForCommandHandlers, 0);
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}
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}
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__ASSERT_ALWAYS(iMediaList, Panic(EGlxPanicNullMediaList));
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if (navigationalState->Id() == TMPXItemId(KGlxCollectionPluginImageViewerImplementationUid))
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{
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// As image viewer is direct fullscreen view,
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// it will not have title.
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SetTitleL(KBlankTitle);
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}
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else if(iFixedTitle)
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{
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// If there is a fixed title, set it
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SetTitleL(*iFixedTitle);
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}
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else
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{
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// else obtain a title from the media list
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// First set a blank title to claim the title space
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SetTitleL(KBlankTitle);
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CMPXCollectionPath* path = iMediaList->PathLC( NGlxListDefs::EPathParent );
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iTitleFetcher = CGlxTitleFetcher::NewL(*this, path);
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CleanupStack::PopAndDestroy(path);
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}
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//Allow the MskController to observe medialist everytime a view with a valid
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//medialist becomes active
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if( iCbaControl && Cba()&& iEnableMidddleSoftkey )
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{
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iCbaControl->AddToObserverL(*iMediaList,Cba());
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if(!(1 == navigationalState->Levels())) // Checking for the main list view
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{
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iCbaControl->SetStatusOnViewActivationL(iMediaList);
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}
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else
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{
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iCbaControl->SetMainStatusL();
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}
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}
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CleanupStack::PopAndDestroy( navigationalState );
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DoMLViewActivateL(aPrevViewId, aCustomMessageId, aCustomMessage);
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//Allow the toolbarController to observe medialist everytime a view with a valid
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//medialist becomes active
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if( GetToolBar() && iToolbarControl )
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{
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iToolbarControl->AddToObserverL(*iMediaList, GetToolBar());
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iToolbarControl->SetStatusOnViewActivationL(iMediaList);
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}
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}
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// -----------------------------------------------------------------------------
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// DoViewDeactivate
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void CGlxMediaListViewBase::DoViewDeactivate()
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{
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TRACER ("CGlxMediaListViewBase::DoViewDeactivate()");
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//Need to be done before the view deactivation
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//as the grid toolbar will be deleted in grid deactivation.
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if (GetToolBar() && iToolbarControl && iMediaList)
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{
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//Remove Toolbarcontroller from medialist observer
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iToolbarControl->RemoveFromObserver(*iMediaList);
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}
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DoMLViewDeactivate();
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if( iMediaList )
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{
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if (iCbaControl && Cba())
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{
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//Remove Mskcontroller from medialist observer
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iCbaControl->RemoveFromObserver(*iMediaList);
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}
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// Only close the medialist if navigating backwards
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if (iUiUtility->ViewNavigationDirection() == EGlxNavigationBackwards)
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{
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CloseMediaList();
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}
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}
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delete iTitleFetcher;
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iTitleFetcher = NULL;
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}
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// -----------------------------------------------------------------------------
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// CGlxMediaListViewBase::FetchAttributesL
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void CGlxMediaListViewBase::FetchAttributesL()
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{
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FetchAttributesL(EFalse);
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}
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// -----------------------------------------------------------------------------
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// CGlxMediaListViewBase::FetchAttributesForCommandL
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void CGlxMediaListViewBase::FetchAttributesForCommandL(TInt aCommand)
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{
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FetchAttributesL(ETrue, aCommand);
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}
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// -----------------------------------------------------------------------------
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// SetToolbarStateL
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void CGlxMediaListViewBase::SetToolbarStateL()
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{
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TRACER("CGlxMediaListViewBase::SetToolbarStateL");
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if( iToolbarControl && iMediaList )
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{
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iToolbarControl->SetStatusL(iMediaList);
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}
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}
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// -----------------------------------------------------------------------------
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// CGlxMediaListViewBase::FetchAttributesL
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// -----------------------------------------------------------------------------
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//
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void CGlxMediaListViewBase::FetchAttributesL(TBool aFilterUsingCommandId,
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TInt aCommandId)
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{
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TRACER("CGlxMediaListViewBase::FetchAttributesL");
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TGlxSelectionIterator iterator;
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CGlxAttributeContext* attributeContext = new(ELeave) CGlxAttributeContext(&iterator);
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CleanupStack::PushL(attributeContext);
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TInt commandHandlerCount = iCommandHandlerList.Count();
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for (TInt i = 0; i < commandHandlerCount; i++)
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{
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AddAttributesToContextL(*attributeContext, iCommandHandlerList[i], ETrue, aFilterUsingCommandId, aCommandId);
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}
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if( EAknSoftkeyBack == aCommandId || attributeContext->AttributeCount())
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{
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// Check if media attributes are already fetched.
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// If media item is NULL, Cancel the previous pending request
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MediaList().CancelPreviousRequests();
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}
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if (attributeContext->AttributeCount())
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{
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MediaList().AddContextL(attributeContext, KGlxFetchContextPriorityCommandHandlerOpening );
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// TGlxContextRemover will remove the context when it goes out of scope
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// Used here to avoid a trap and still have safe cleanup
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TGlxFetchContextRemover contextRemover(attributeContext, MediaList());
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// put to cleanupstack as cleanupstack is emptied before stack objects
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// are deleted
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CleanupClosePushL( contextRemover );
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// retrieve attributes, ignore return value
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(void)GlxAttributeRetriever::RetrieveL(*attributeContext, MediaList(), ETrue);
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// context off the list
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CleanupStack::PopAndDestroy( &contextRemover );
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}
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CleanupStack::PopAndDestroy(attributeContext);
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}
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// -----------------------------------------------------------------------------
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// HandleTitleAvailableL
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void CGlxMediaListViewBase::HandleTitleAvailableL(
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const TDesC& aTitle)
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{
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// Convertion of unsigned short to unsigned int
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TUint16* tileConv = const_cast<TUint16*>(aTitle.Ptr());
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TInt titleLen = aTitle.Length();
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TPtr titlePtr(tileConv,titleLen,titleLen);
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//to convert between arabic-indic digits and european digits.
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//based on existing language setting.
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AknTextUtils::LanguageSpecificNumberConversion(titlePtr);
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// Set a title after it has been obtained by the title fetcher
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SetTitleL(aTitle);
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}
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// -----------------------------------------------------------------------------
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// CGlxMediaListViewBase::DoPrepareCommandHandlerL
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void CGlxMediaListViewBase::DoPrepareCommandHandlerL(
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CGlxCommandHandler* aCommandHandler)
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{
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if (iPreloadContextForCommandHandlers)
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{
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AddAttributesToContextL(*iPreloadContextForCommandHandlers,
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aCommandHandler, EFalse, EFalse);
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}
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}
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// -----------------------------------------------------------------------------
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// CGlxMediaListViewBase::CloseMediaList
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// -----------------------------------------------------------------------------
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//
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void CGlxMediaListViewBase::CloseMediaList()
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{
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if (iMediaList)
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{
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if (iPreloadContextForCommandHandlers)
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{
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iMediaList->RemoveContext(iPreloadContextForCommandHandlers);
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}
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iMediaList->Close();
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iMediaList = NULL;
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}
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}
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// -----------------------------------------------------------------------------
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// CGlxMediaListViewBase::AddAttributesToContextL
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// -----------------------------------------------------------------------------
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//
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void CGlxMediaListViewBase::AddAttributesToContextL(
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CGlxAttributeContext& aAttributeContext,
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CGlxCommandHandler* aCommandHandler,
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TBool aFilterUsingSelection,
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TBool aFilterUsingCommandId,
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TInt aCommandId)
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{
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RArray<TMPXAttribute> requiredAttributes;
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CleanupClosePushL(requiredAttributes);
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aCommandHandler->
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GetRequiredAttributesL(requiredAttributes, aFilterUsingSelection, aFilterUsingCommandId, aCommandId);
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TInt attributeCount = requiredAttributes.Count();
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for (TInt i = 0; i < attributeCount; i++)
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{
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aAttributeContext.AddAttributeL(requiredAttributes[i]);
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}
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CleanupStack::PopAndDestroy(&requiredAttributes);
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}
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// -----------------------------------------------------------------------------
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// HandleViewCommandL
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// -----------------------------------------------------------------------------
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//
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EXPORT_C TBool CGlxMediaListViewBase::HandleViewCommandL(TInt /*aCommand*/)
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{
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return EFalse;
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}
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// -----------------------------------------------------------------------------
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// DoHandleCommandL
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// -----------------------------------------------------------------------------
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//
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EXPORT_C TInt CGlxMediaListViewBase::DoHandleCommandL(TInt aCommand)
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{
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// Pass the command to the deriving class
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return HandleViewCommandL( aCommand );
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}
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441 |
|