/*

* Copyright (c) 2007-2010 Sebastian Brannstrom, Lars Persson, EmbedDev AB

*

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:

* EmbedDev AB - initial contribution.

*

* Contributors:

*

* Description:

*

*/

#include "PodcastQueueView.h"

#include "PodcastAppUi.h"

#include "ShowEngine.h"

#include "SettingsEngine.h"

#include "PodcastApp.h"

#include "Constants.h"

#include "imagehandler.h"

#include "PodcastShowsView.h"

#include <podcast.rsg>

#include <podcast.mbg>

#include <gulicon.h>

#include <barsread.h>

#include <aknnotedialog.h>

#include <aknmessagequerydialog.h>

#define KMaxMessageLength 200

CPodcastQueueView* CPodcastQueueView::NewL(CPodcastModel& aPodcastModel)

	{

	CPodcastQueueView* self = CPodcastQueueView::NewLC(aPodcastModel);

	CleanupStack::Pop(self);

	return self;

	}

CPodcastQueueView* CPodcastQueueView::NewLC(CPodcastModel& aPodcastModel)

	{

	CPodcastQueueView* self = new ( ELeave ) CPodcastQueueView(aPodcastModel);

	CleanupStack::PushL(self);

	self->ConstructL();

	return self;

	}

CPodcastQueueView::CPodcastQueueView(CPodcastModel& aPodcastModel) :

	CPodcastShowsView(aPodcastModel)

	{

	}

void CPodcastQueueView::ConstructL()

	{

	BaseConstructL(R_PODCAST_QUEUEVIEW);

	CPodcastListView::ConstructL();

	CreateIconsL();

	iListContainer->Listbox()->SetListBoxObserver(this);

	iPodcastModel.FeedEngine().AddObserver(this);

	iPodcastModel.ShowEngine().AddObserver(this);

	SetEmptyTextL(R_PODCAST_EMPTY_QUEUE);

	}

TKeyResponse CPodcastQueueView::OfferKeyEventL(const TKeyEvent& aKeyEvent,TEventCode aType)

	{

	if (aType == EEventKey)

		{

		CShowInfo *activeShow = NULL;

		TInt index = iListContainer->Listbox()->CurrentItemIndex();

		if(index >= 0 && index < iPodcastModel.ActiveShowList().Count())

		{

			activeShow = iPodcastModel.ActiveShowList()[index];

		}

		if (activeShow != NULL) {

			DP1("aKeyEvent.iCode=%d", aKeyEvent.iCode);

			switch (aKeyEvent.iCode) {

			case EKeyBackspace:

			case EKeyDelete:

				HandleCommandL(EPodcastRemoveDownload);

				break;

			default:

				break;

			}

			UpdateToolbar();

		}

	}

		return CPodcastListView::OfferKeyEventL(aKeyEvent, aType);

	}

CPodcastQueueView::~CPodcastQueueView()

	{

	iPodcastModel.ShowEngine().RemoveObserver(this);

	iPodcastModel.FeedEngine().RemoveObserver(this);

	}

TUid CPodcastQueueView::Id() const

	{

	return KUidPodcastQueueViewID;

	}

void CPodcastQueueView::DoActivateL(const TVwsViewId& aPrevViewId,

		TUid aCustomMessageId, const TDesC8& aCustomMessage)

	{

	DP("CPodcastQueueView::DoActivateL BEGIN");

	CPodcastListView::DoActivateL(aPrevViewId, aCustomMessageId, aCustomMessage);

	iPreviousView = aPrevViewId;

	UpdateFeedUpdateStateL();

	UpdateToolbar();

	DP("CPodcastQueueView::DoActivateL END");

	}

void CPodcastQueueView::DoDeactivate()

	{

	CPodcastListView::DoDeactivate();

	}

void CPodcastQueueView::HandleListBoxEventL(CEikListBox* /*aListBox*/,

		TListBoxEvent aEventType)

	{

	switch (aEventType)

		{

		case EEventItemSingleClicked:

		case EEventEnterKeyPressed:		

		case EEventItemActioned:

		case EEventItemDoubleClicked:

			break;

		default:

			break;

		}

		UpdateToolbar();

	}

void CPodcastQueueView::UpdateListboxItemsL()

	{

	if (iListContainer->IsVisible() && !iDontUpdateList)

		{

		TListItemProperties itemProps;

		TInt len = 0;

		iPodcastModel.GetShowsDownloadingL();

		RShowInfoArray &fItems = iPodcastModel.ActiveShowList();

		len = fItems.Count();

		if (iListContainer->Listbox() != NULL)

			{

			TBool allUidsMatch = EFalse;

			if (len == iListContainer->Listbox()->Model()->NumberOfItems())

				{

				allUidsMatch = ETrue;

				TUint itemId = 0;

				for (TInt loop = 0; loop< len; loop++)

					{

					itemId = iItemIdArray[loop];

					if (fItems[loop]->Uid() != itemId)

						{

						allUidsMatch = EFalse;

						break;

						}

					}

				}

			if (allUidsMatch && len > 0)

				{

				for (TInt loop = 0; loop< len; loop++)

					{					

					UpdateShowItemDataL(fItems[loop], loop);	

					}

				iListContainer->Listbox()->DrawNow();

				}

			else

				{

				iListContainer->Listbox()->ItemDrawer()->ClearAllPropertiesL();

				iListContainer->Listbox()->Reset();

				iItemIdArray.Reset();

				iItemArray->Reset();

				if (len > 0)

					{

					for (TInt i=0; i<len; i++)

						{

						CShowInfo *si = fItems[i];

						FormatShowInfoListBoxItemL(*si);

						iItemIdArray.Append(si->Uid());						

						iItemArray->AppendL(iListboxFormatbuffer);

						}

					}

				else

					{

					iItemArray->Reset();

					iItemIdArray.Reset();

					itemProps.SetDimmed(ETrue);

					itemProps.SetHiddenSelection(ETrue);

					}

				iListContainer->Listbox()->HandleItemAdditionL();

				}				

			}

		}

	}

/** 

 * Command handling function intended for overriding by sub classes. 

 * Default implementation is empty.  

 * @param aCommand ID of the command to respond to. 

 */

void CPodcastQueueView::HandleCommandL(TInt aCommand)

	{

	switch (aCommand)

		{

		case EPodcastRemoveAllDownloads:

			{

			TBuf<KMaxMessageLength> msg;

			iEikonEnv->ReadResourceL(msg, R_CLEAR_QUERY);

			if(ShowQueryMessageL(msg))

				{

				iPodcastModel.ShowEngine().RemoveAllDownloadsL();

				UpdateListboxItemsL();

				}

			}

			break;

		case EPodcastRemoveDownload:

			{

			TInt index = iListContainer->Listbox()->CurrentItemIndex();

			if (index >= 0 && index < iPodcastModel.ActiveShowList().Count())

				{

				// this is an ugly hack to prevent UpdateListboxItemsL from being

				// triggered from the show engine, which causes focus to jump

				// around in an ugly fashion

				iDontUpdateList = ETrue;

				TRAP_IGNORE(iPodcastModel.ShowEngine().RemoveDownloadL(iPodcastModel.ActiveShowList()[index]->Uid()));

				iDontUpdateList = EFalse;

				}

			UpdateListboxItemsL();

			if (index > 0)

				{

				iListContainer->Listbox()->SetCurrentItemIndex(index - 1);

				}

			}

			break;

		case EPodcastMoveDownloadUp:

			{

			TInt index = iListContainer->Listbox()->CurrentItemIndex();

			TBool resumeAfterMove = EFalse;

			if (index == 1 && !iPodcastModel.SettingsEngine().DownloadSuspended())

				{

				iPodcastModel.ShowEngine().SuspendDownloads();

				resumeAfterMove = ETrue;

				}

			if (index >= 0 && index < iPodcastModel.ActiveShowList().Count())

				{

				TRAP_IGNORE(iPodcastModel.ShowEngine().MoveDownloadUpL(iPodcastModel.ActiveShowList()[index]->Uid()));

				}

			if(resumeAfterMove)

				{

				iPodcastModel.ShowEngine().ResumeDownloadsL();

				}

			UpdateListboxItemsL();

			iListContainer->Listbox()->SetCurrentItemIndex(index - 1);

			}

			break;

		case EPodcastMoveDownloadDown:

			{

			TInt index = iListContainer->Listbox()->CurrentItemIndex();

			TBool resumeAfterMove = EFalse;

			if (index == 0 && !iPodcastModel.SettingsEngine().DownloadSuspended())

				{

				iPodcastModel.ShowEngine().SuspendDownloads();

				resumeAfterMove = ETrue;

				}

			if (index >= 0 && index < iPodcastModel.ActiveShowList().Count())

				{

				TRAP_IGNORE(iPodcastModel.ShowEngine().MoveDownloadDownL(iPodcastModel.ActiveShowList()[index]->Uid()));

				}

			if(resumeAfterMove)

				{

				iPodcastModel.ShowEngine().ResumeDownloadsL();

				}

			UpdateListboxItemsL();

			iListContainer->Listbox()->SetCurrentItemIndex(index + 1);

			}

			break;

		case EPodcastSuspendDownloads:

			{

			iDontUpdateList = ETrue;

			iPodcastModel.ShowEngine().SuspendDownloads();

			iDontUpdateList = EFalse;

			UpdateListboxItemsL();

			}

			break;

		case EPodcastResumeDownloads:

			{

			iDontUpdateList = ETrue;

			iPodcastModel.ShowEngine().ResumeDownloadsL();

			iDontUpdateList = EFalse;

			UpdateListboxItemsL();

			}

			break;

		case EPodcastShowInfo:

			{

			DisplayShowInfoDialogL();

			}

			break;

		default:

			CPodcastListView::HandleCommandL(aCommand);

			break;

		}

	UpdateToolbar();

	}

void CPodcastQueueView::DynInitMenuPaneL(TInt aResourceId,CEikMenuPane* aMenuPane)

	{

	if(aResourceId == R_PODCAST_QUEUEVIEW_MENU)

		{

		TBool dimDown = (iListContainer->Listbox()->CurrentItemIndex() >= iPodcastModel.ActiveShowList().Count() - 1 ?

				ETrue : EFalse);

		TBool dimUp = (iListContainer->Listbox()->CurrentItemIndex() <= 0 ?

				ETrue : EFalse);

		TInt index = iListContainer->Listbox()->CurrentItemIndex();

		if (index >= 0 && index < iPodcastModel.ActiveShowList().Count())

			{			

			CShowInfo* info = iPodcastModel.ActiveShowList()[index];

			aMenuPane->SetItemDimmed(EPodcastMoveDownloadDown, dimDown);

			aMenuPane->SetItemDimmed(EPodcastMoveDownloadUp, dimUp);

			}

		}

	}

void CPodcastQueueView::UpdateToolbar(TBool aVisible)

	{

	CAknToolbar* toolbar = Toolbar();

	if (toolbar)

		{

		RShowInfoArray &fItems = iPodcastModel.ActiveShowList();

		TInt itemCnt = fItems.Count();

		if (iListContainer->IsVisible()) 

			{

			toolbar->SetToolbarVisibility(aVisible);

			}

		toolbar->HideItem(EPodcastRemoveAllDownloads, EFalse, ETrue);

		toolbar->SetItemDimmed(EPodcastRemoveAllDownloads, itemCnt == 0, ETrue);

		toolbar->HideItem(EPodcastSuspendDownloads,iPodcastModel.SettingsEngine().DownloadSuspended(), ETrue);

		toolbar->HideItem(EPodcastResumeDownloads,!iPodcastModel.SettingsEngine().DownloadSuspended(), ETrue);	

		toolbar->SetItemDimmed(EPodcastRemoveDownload, itemCnt == 0, ETrue);		

		}

	}