application/src/PodcastListView.cpp
author skip
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/*
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* Copyright (c) 2007-2010 Sebastian Brannstrom, Lars Persson, EmbedDev AB
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*
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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 the License "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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* EmbedDev AB - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#include "PodcastListView.h"
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#include "Podcast.hrh"
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#include "PodcastAppUi.h"
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#include "constants.h"
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#include <podcast.rsg>
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#include <aknlists.h> 
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#include <aknviewappui.h>
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#include <aknnotedialog.h>
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#include <aknsbasicbackgroundcontrolcontext.h>
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#include <akntabgrp.h>
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#include <akntoolbarextension.h>
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#include <aknquerydialog.h>
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#include <barsread.h>
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const TInt KDefaultGran = 5;
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CPodcastListContainer::CPodcastListContainer()
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{
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}
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void CPodcastListContainer::SetKeyEventListener(MKeyEventListener *aKeyEventListener)
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	{
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	iKeyEventListener = aKeyEventListener;
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	}
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TKeyResponse CPodcastListContainer::OfferKeyEventL(const TKeyEvent& aKeyEvent,TEventCode aType)
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{
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	TKeyResponse response = iListbox->OfferKeyEventL(aKeyEvent, aType);
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	if (iKeyEventListener)
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		iKeyEventListener->OfferKeyEventL(aKeyEvent, aType);
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	return response;
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}
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void CPodcastListContainer::ConstructL( const TRect& aRect, TInt aListboxFlags )
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{
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	CreateWindowL();
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	iBgContext = 
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		    CAknsBasicBackgroundControlContext::NewL( KAknsIIDQsnBgAreaMain, 
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		                                              aRect, 
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		                                              ETrue );
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	 // Set the windows size
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    SetRect( aRect );    
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    iListbox =static_cast<CEikFormattedCellListBox*>( new (ELeave) CAknDoubleLargeStyleListBox);
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    iListbox->ConstructL(this, aListboxFlags);
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    iListbox->SetMopParent( this );
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	iListbox->SetContainerWindowL(*this);
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	iListbox->CreateScrollBarFrameL(ETrue);
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	iListbox->ScrollBarFrame()->SetScrollBarVisibilityL(CEikScrollBarFrame::EAuto, CEikScrollBarFrame::EAuto );
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	iListbox->ItemDrawer()->FormattedCellData()->EnableMarqueeL( ETrue );
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	iListbox->SetSize(aRect.Size());
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	iListbox->MakeVisible(ETrue);
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    MakeVisible(EFalse);
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	// Activate the window, which makes it ready to be drawn
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    ActivateL();   
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}
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TInt CPodcastListContainer::CountComponentControls() const
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    {
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    return 1; // return number of controls inside this container
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    }
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CCoeControl* CPodcastListContainer::ComponentControl(TInt aIndex) const
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    {
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    switch ( aIndex )
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        {
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        case 0:
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            return iListbox;
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        default:
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            return NULL;
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        }
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    }
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void CPodcastListContainer::HandleResourceChange(TInt aType)
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{
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	switch( aType )
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    	{
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	    case KEikDynamicLayoutVariantSwitch:
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		    SetRect(iEikonEnv->EikAppUi()->ClientRect());
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		    break;
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	    }
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}
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void CPodcastListContainer::ScrollToVisible() {
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	if (iListbox != NULL) {
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		iListbox->ScrollToMakeItemVisible(iListbox->CurrentItemIndex());
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	}
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}
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void CPodcastListContainer::SizeChanged()
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{
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	DP2("CPodcastListContainer::SizeChanged(), width=%d, height=%d",Size().iWidth, Size().iHeight);
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	if(iListbox != NULL)
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	{
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		iListbox->SetSize(Size());
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	}
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}
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CEikFormattedCellListBox* CPodcastListContainer::Listbox()
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{
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	return iListbox;
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}
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CPodcastListContainer::~CPodcastListContainer()
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{
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	delete iListbox;
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	delete iBgContext;
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}
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void CPodcastListContainer::Draw(const TRect& aRect) const
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	{
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	CWindowGc& gc = SystemGc();
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	gc.SetBrushStyle(CGraphicsContext::ESolidBrush);
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	MAknsControlContext* cc = AknsDrawUtils::ControlContext(this);
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	MAknsSkinInstance* skin = AknsUtils::SkinInstance();
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	AknsDrawUtils::Background(skin, cc, (CCoeControl*) this, gc, aRect);
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	}
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TTypeUid::Ptr CPodcastListContainer::MopSupplyObject( TTypeUid aId )
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    {
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    if (iBgContext )
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    {
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      return MAknsControlContext::SupplyMopObject( aId, iBgContext );
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    }
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    return CCoeControl::MopSupplyObject(aId);
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    }
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void CPodcastListContainer::HandlePointerEventL(const TPointerEvent& aPointerEvent)
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	{
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	if (iPointerListener)
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		iPointerListener->PointerEventL(aPointerEvent);
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	// Call base class HandlePointerEventL()
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	CCoeControl::HandlePointerEventL(aPointerEvent);
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	}
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void CPodcastListContainer::SetPointerListener(MPointerListener *aPointerListener)
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	{
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	iPointerListener = aPointerListener;
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	}
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CPodcastListView::CPodcastListView()
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{
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}
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void CPodcastListView::ConstructL()
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{
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	DP("CPodcastListView::ConstructL BEGIN");
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	iListContainer = new (ELeave) CPodcastListContainer;
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	iListContainer->ConstructL(ClientRect(), iListboxFlags);
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	iListContainer->SetMopParent(this);
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	iListContainer->ActivateL();
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	iItemArray = new (ELeave)CDesCArrayFlat(KDefaultGran);
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	iListContainer->Listbox()->Model()->SetItemTextArray(iItemArray);
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	iListContainer->Listbox()->Model()->SetOwnershipType(ELbmDoesNotOwnItemArray);
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	if (Toolbar()) {
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		iToolbar = Toolbar();
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		iToolbar->SetToolbarObserver(this);
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	}
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	iLongTapDetector = CAknLongTapDetector::NewL(this);
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	iListContainer->SetPointerListener(this);
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	iListContainer->SetKeyEventListener(this);
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	DP("CPodcastListView::ConstructL END");
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}
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void CPodcastListView::HandleViewRectChange()
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{
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    if ( iListContainer )
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	{
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        iListContainer->SetRect( ClientRect() );
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	}
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}
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void CPodcastListView::HandleStatusPaneSizeChange()
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{
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	DP2("CPodcastListView::HandleStatusPaneSizeChange(), width=%d, height=%d", ClientRect().Width(), ClientRect().Height());
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	if ( iListContainer )
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	{
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        iListContainer->SetRect( ClientRect() );
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	}
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}
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CPodcastListView::~CPodcastListView()
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    {
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    if(iListContainer)
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    	{
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    	AppUi()->RemoveFromStack(iListContainer);
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    	delete iListContainer;
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    	}
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    delete iItemArray;
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    delete iLongTapDetector;
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    iItemIdArray.Close();
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    }
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void CPodcastListView::DoActivateL(const TVwsViewId& /*aPrevViewId */,
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	                                  TUid /*aCustomMessageId */,
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									  const TDesC8& /* aCustomMessage */)
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{	
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	DP("CPodcastListView::DoActivateL() BEGIN");
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	if(iListContainer)
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	{
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		iListContainer->SetSize(ClientRect().Size());
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		iListContainer->SetMopParent(this);
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		AppUi()->AddToStackL(*this, iListContainer);
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		iListContainer->MakeVisible(ETrue);
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		UpdateListboxItemsL();		
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		iListContainer->DrawNow();
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	}
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	DP("CPodcastListView::DoActivateL() END");
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}
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void CPodcastListView::DoDeactivate()
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{
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	DP("CPodcastListView::DoDeactivate() BEGIN");
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	if ( iListContainer )
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	{
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		AppUi()->RemoveFromViewStack( *this, iListContainer);
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		iListContainer->MakeVisible(EFalse);
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	}
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	DP("CPodcastListView::DoDeactivate() END");
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}
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/** 
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* Command handling function intended for overriding by sub classes. 
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* Default implementation is empty.  
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* @param aCommand ID of the command to respond to. 
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*/
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void CPodcastListView::HandleCommandL(TInt aCommand)
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{
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	DP1("CPodcastListView::HandleCommandL=%d", aCommand);
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	switch(aCommand)
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	{
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	case EAknSoftkeyExit:
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	case EEikCmdExit:
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		{
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            AppUi()->Exit();
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            break;
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		}
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	case EAknSoftkeyBack:
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		{
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		AppUi()->ActivateViewL(iPreviousView);
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		if (iPreviousView.iViewUid == KUidPodcastFeedViewID) {
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			((CPodcastAppUi*)AppUi())->SetActiveTab(KTabIdFeeds);
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		}
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		}break;
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	case EPodcastSettings:
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		AppUi()->ActivateLocalViewL(KUidPodcastSettingsViewID);
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		break;
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	case EPodcastAbout:
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		RunAboutDialogL();
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		break;
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	default:
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		AppUi()->HandleCommandL(aCommand);
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   291
	}
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   292
}
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   293
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   294
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void CPodcastListView::RunAboutDialogL()
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{
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	CAknNoteDialog* dlg = new(ELeave) CAknNoteDialog();
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	dlg->ExecuteLD(R_DLG_ABOUT);
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   299
}
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void CPodcastListView::SetEmptyTextL(TInt aResourceId)
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	{
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	HBufC* emptyText =  iEikonEnv->AllocReadResourceLC(aResourceId);
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	iListContainer->Listbox()->View()->SetListEmptyTextL(*emptyText);
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	CleanupStack::PopAndDestroy(emptyText);	
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   306
	}
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   307
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void CPodcastListView::ShowOkMessage(TDesC &aText)
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	{
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	CAknNoteDialog* dlg= new(ELeave) CAknNoteDialog();
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	CleanupStack::PushL(dlg);
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	dlg->SetTextL(aText);
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   313
	CleanupStack::Pop(dlg);
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   314
	dlg->ExecuteLD(R_MESSAGEDLG_OK);
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   315
	}
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   316
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void CPodcastListView::ShowErrorMessage(TDesC &aText)
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	{
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   319
	CAknNoteDialog* dlg= new(ELeave) CAknNoteDialog();
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   320
	CleanupStack::PushL(dlg);
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   321
	dlg->SetTextL(aText);
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   322
	CleanupStack::Pop(dlg);
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   323
	dlg->ExecuteLD(R_ERRORDLG_OK);
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   324
	}
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   325
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   326
TInt CPodcastListView::ShowQueryMessage(TDesC &aText)
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	{
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   328
	CAknQueryDialog* dlg= new(ELeave) CAknQueryDialog();
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   329
	
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	CleanupStack::PushL(dlg);
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   331
	dlg->SetPromptL(aText);
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   332
	CleanupStack::Pop(dlg);
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   333
	return dlg->ExecuteLD(R_QUERYDLG);
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   334
	}
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   335
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   336
void CPodcastListView::CloseToolbarExtension()
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   337
{
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   338
	CAknToolbar* toolbar = Toolbar();
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   339
	if (toolbar) {
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   340
		CAknToolbarExtension* toolbarExtension = toolbar->ToolbarExtension();
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   341
		if (toolbarExtension) {
29cda98b007e Initial import of Podcatcher from the Bergamot project
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   342
		toolbarExtension->SetShown( EFalse );
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   343
		}
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   344
	}
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   345
}
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   346
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   347
void CPodcastListView::PointerEventL(const TPointerEvent& aPointerEvent)
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   348
	{
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	//DP1("CPodcastListView::PointerEventL, iType=%d", aPointerEvent.iType);
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   350
	// Pass the pointer event to Long tap detector component
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	iLongTapDetector->PointerEventL(aPointerEvent);
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	}
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void CPodcastListView::HandleLongTapEventL( const TPoint& aPenEventLocation, const TPoint& /* aPenEventScreenLocation */)
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{
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	DP("CPodcastListView::HandleLongTapEventL BEGIN");
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    if(iStylusPopupMenu)
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    {
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		iStylusPopupMenu->ShowMenu();
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		iStylusPopupMenu->SetPosition(aPenEventLocation);
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    }
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	DP("CPodcastListView::HandleLongTapEventL END");
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}
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   366
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void CPodcastListView::DynInitToolbarL (TInt /*aResourceId*/, CAknToolbar * /*aToolbar*/)
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	{
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	DP("CPodcastListView::DynInitToolbarL");
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	UpdateToolbar();
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	}
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void CPodcastListView::OfferToolbarEventL(TInt aCommand)
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	{
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	HandleCommandL(aCommand);
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	}
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   378
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void CPodcastListView::ShowWaitDialogL(TDesC &aWaitText)
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	{
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	DP("CPodcastListView::ShowWaitDialogL BEGIN");
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   382
	
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	if (iWaitDialog) {
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   384
		User::Leave(KErrInUse);
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   385
	}
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	iWaitDialog=new(ELeave) CAknWaitDialog(reinterpret_cast<CEikDialog**>(&iWaitDialog), EFalse);
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	iWaitDialog->SetCallback(this);
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	iWaitDialog->ExecuteLD(R_WAITDLG);
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	iWaitDialog->SetTextL(aWaitText);
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	DP("CPodcastListView::ShowWaitDialogL END");
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	}
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TKeyResponse CPodcastListView::OfferKeyEventL(const TKeyEvent& aKeyEvent,TEventCode aType)
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	{
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   396
	if (aType==EEventKey)
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   397
		{
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		switch (aKeyEvent.iCode)
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			{
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			case EKeyRightArrow:
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   401
				((CPodcastAppUi*)AppUi())->TabRight();
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   402
				return EKeyWasConsumed;
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   403
			case EKeyLeftArrow:
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				((CPodcastAppUi*)AppUi())->TabLeft();
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   405
				return EKeyWasConsumed;
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   406
			}
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   407
		}
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   408
	return EKeyWasNotConsumed;
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	}
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   410