/*

* 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:    Metadata dialog implementation

*

*/

#ifndef GLXMETADATADIALOG_H 

#define GLXMETADATADIALOG_H

// SYSTEM INCLUDES

#include <AknDialog.h>

#include <alf/alfscreenbuffer.h>

#include "glxmetadatacontainer.h"

#include "mglxmedialistprovider.h"

#include "mglxmedialistobserver.h"

#include <mglxmetadatadialogobserver.h>

#include "glxmedia.h"

#include <aknphysicsobserveriface.h> //Physics - Kinetic scrolling listener

// FORWARD DECLARATIONS

class CGlxMetadataCommandHandler;class CGlxCommandHandlerAddToContainer;

class CGlxUiUtility;

// CLASS DECLARATION

/**

 *  CGlxMetadataDialog

 * 

 *  Metadata dialog implementation

 */

class CGlxMetadataDialog : public CAknDialog,

                           public MGlxMediaListProvider,

                           public MGlxMetadataDialogObserver,

                           public MToolbarResetObserver,

                           public MAknPhysicsObserver

    {

public: // Constructors and destructor

    /**

	* Two-phased constructor.

	*

	* @param aURI uri or file name of item

	*/

    IMPORT_C static CGlxMetadataDialog* NewL( const TDesC& aUri );

    /**

    * Destructor.

    */

    virtual ~CGlxMetadataDialog();

private :

    CGlxMetadataDialog(const TDesC& aUri);

public: // Functions from base classes

    /**

    * Initializes the dialog and calls CAknDialog's 

    *   ExecuteLD()

    * This method need to be called to execute the dialog.

    * After exiting the dialog gets automatically destroyed

    *

    * @return TInt  ID value of the button that closed the dialog.

    */

    IMPORT_C TInt ExecuteLD();

    /**

    * From CEikDialog. Handles button events and checks if the dialog 

    *   can be closed

    *

    * @param aKeycode Id of the 'pressed' button

    *

    * @return   EFalse if Options menu was pressed 

    *           ETrue otherwise

    */

    TBool OkToExitL( TInt aKeycode );  

    /*

     * From MToolbarResetObserver 

     */

    void HandleToolbarResetting(TBool aVisible);

protected: // from MAknPhysicsObserver   

    void ViewPositionChanged( const TPoint& /*aNewPosition*/, TBool /*aDrawNow*/, TUint /*aFlags*/ );

    void PhysicEmulationEnded();

    TPoint ViewPosition() const;

protected:  // Functions from base classes

    /**

    * From MEikCommandObserver Prosesses menucommands

    *

    * @param aCommandId     Commant value defined in resources.

    */

    void ProcessCommandL( TInt aCommandId );

    /**

    * From CCoeControl Handles key events

    *

    * @param aKeyEvent      TKeyEvent 

    * @param aType          TEventCode

    *

    * @return TKeyResponse depending on was is consumed or not.

    */

    TKeyResponse OfferKeyEventL( const TKeyEvent& aKeyEvent, TEventCode aType );

    /**

    * From MEikMenuObserver Initializes items on the menu

    *

    * @param aMenuId    Current menu's resource Id

    * @param aMenuPane  Pointer to menupane

    */

    void DynInitMenuPaneL(TInt aMenuId, CEikMenuPane* aMenuPane);

private:        

		/**

		 * Initializes the dialog's controls after the dialog has been sized 

		 * but before it has been activated.

		 */

		void PostLayoutDynInitL();

		/**

		* Symbian 2nd phase constructor.

		* 

		* @param aURI

		*/

		void ConstructL();

		/**

		* Initalise the resource

		*

		*/

		void InitResourceL();   

		/** 

		* To deal with any specific commands

		*

		* @param aCommand The command to respond to

		* @return ETrue if the command has been handled.

		*

		*/

		TBool HandleViewCommandL(TInt aCommand);

		/**

		* Returns reference to the current media list 

		*

		*/

		MGlxMediaList& MediaList();

private:

		void HandlePointerEventL(const TPointerEvent& aPointerEvent);   	

		/**

		* SetTitleL

		* Sets title for view

		* @param aTitleText title of view to be set

		*/

		void SetTitleL(const TDesC& aTitleText);    

		/**

		* SetPreviousTitleL

		* Sets title of previous view

		*/

		void SetPreviousTitleL();

		/** 

		* Sets the dialog toolbar visibility

		* @param aVisible - ETrue for visible; EFalse otherwise.

		*/

		void SetDetailsDlgToolbarVisibility(TBool aVisible);

public:

    // from MGlxMetadataDialogObserver	

    /**

     * Find out the items nature to set the corresponding options

     */

    void OnLocationEditL();

    void AddTagL();

    void AddAlbumL();

    void HandleItemRemovedL();

public: // from MEikDialogPageObserver

    /**

    * @ref MEikDialogPageObserver::CreateCustomControlL

    */

    SEikControlInfo CreateCustomControlL(TInt aControlType);

private: //data

		TInt iResourceOffset;

		TBool iStatusPaneAvailable;

		CGlxMetadataContainer* iContainer;

		CGlxMetadataCommandHandler*     iMetadataCmdHandler;//own

		CGlxUiUtility* iUiUtility;		

		HBufC* iPreviousTitle;    

		const TDesC& iUri;

		CGlxCommandHandlerAddToContainer*  iAddToTag;

		CGlxCommandHandlerAddToContainer*  iAddToAlbum;

		/*

		 * Store previous pointer event point

		 */ 

		TPoint iPrev;

		/*

		 * Check if the dragging got beyond kinetic drag threshold & screen 

		 * movement will start, if set to true 

		 */

		TBool iViewDragged;

		/*

		 * Store the value of kinetic drag threshold

		 */

		TInt iKineticDragThreshold;

    };

#endif  // GLXMETADATADIALOG_H

// End of File