/*

* 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:

*

*/

#ifndef PODCASTFEEDVIEWH

#define PODCASTFEEDVIEWH 

#include "FeedEngine.h"

#include "PodcastListView.h"

#include "ImageHandler.h"

class CPodcastFeedViewUpdater;

enum TOpmlState {

	EOpmlIdle,

	EOpmlImporting,

	EOpmlSearching

};

class CPodcastFeedView : public CPodcastListView, public MEikListBoxObserver, 

	public MFeedEngineObserver, public MImageHandlerCallback

    {

    public: 

        static CPodcastFeedView* NewL(CPodcastModel& aPodcastModel);

        static CPodcastFeedView* NewLC(CPodcastModel& aPodcastModel);

        ~CPodcastFeedView();

        void UpdateItemL(TInt aIndex);

		void CheckResumeDownloadL();

		void UpdateToolbar(TBool aVisible=ETrue);

		TBool ViewingShows();

 	   void CheckConfirmExit();

 	   void ShowItem(TUint aUid);

	protected:

	    void ConstructL();

		CPodcastFeedView(CPodcastModel& aPodcastModel);

		/**

		 * Returns views id, intended for overriding by sub classes.

		 * @return id for this view.

		 */

		TUid Id() const;

		/** 

		 * Handles a view activation and passes the message of type 

		 * @c aCustomMessageId. This function is intended for overriding by 

		 * sub classes. This function is called by @c AknViewActivatedL().

		 * @param aPrevViewId Specifies the view previously active.

		 * @param aCustomMessageId Specifies the message type.

		 * @param aCustomMessage The activation message.

		 */

		void DoActivateL(const TVwsViewId& aPrevViewId,

	                                  TUid aCustomMessageId,

	                                  const TDesC8& aCustomMessage);

	    /** 

		 * View deactivation function intended for overriding by sub classes. 

		 * This function is called by @c AknViewDeactivated().

		 */

		void DoDeactivate();

		// From // MEikListBoxObserverClass

		void HandleListBoxEventL(CEikListBox* aListBox, TListBoxEvent aEventType);

		void UpdateListboxItemsL();

		// from MFeedEngineObserver

		void FeedDownloadStartedL(TFeedState aState,TUint aFeedUid);		

		void FeedDownloadFinishedL(TFeedState aState,TUint aFeeidUid, TInt aError);

		void FeedUpdateAllCompleteL(TFeedState aState);

		void OpmlParsingComplete(TInt aError, TUint aNumFeedsImported);

		/** 

		 * Command handling function intended for overriding by sub classes. 

		 * Default implementation is empty.  

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

		 */

		void HandleCommandL(TInt aCommand);

		void FeedInfoUpdatedL(TUint aFeedUid);

		void UpdateFeedInfoDataL(CFeedInfo* aFeedInfo, TInt aIndex, TBool aIsUpdating = EFalse);

		void UpdateFeedInfoStatusL(TUint aFeedUid, TBool aIsUpdating = EFalse);

		// from MProgressDialogCallback

		void DialogDismissedL(TInt aButtonId); 

		// from MImageHandlerCallback

		void ImageOperationCompleteL(TInt aError, TUint aHandle, CPodcastModel& aPodcastModel);

	private:

		void FormatFeedInfoListBoxItemL(CFeedInfo& aFeedInfo, TBool aIsUpdating = EFalse);

		void HandleAddFeedL();

		void HandleAddFeedUrlL();

		void HandleAddFeedSearchL();

		void HandleEditFeedL();

		void HandleRemoveFeedL();

		void HandleImportFeedsL();

		void HandleExportFeedsL();

		void HandleUpdateFeedL();

		void GetFeedErrorText(TDes &aErrorMessage, TInt aErrorCode);

		void OpmlParsingCompleteL(TInt aError, TUint aNumFeedsImported);

		void LoadIcons();

	private:

		CPodcastModel& iPodcastModel;		

		TUint iFeedUpdating;

		HBufC* iFeedsFormat;

		HBufC* iNeverUpdated;

		CPodcastFeedViewUpdater* iUpdater;

		TBool iFirstActivateAfterLaunch;

		TOpmlState iOpmlState;

		TBool iViewingShows;

		RArray<TInt> iFeedIdForIconArray;

};

#endif // PODCASTFEEDVIEWH