/*

* Copyright (c) 2005-2007 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:  Provides Psln Application Screensaver view.

*

*/

#ifndef CPSLNSCREENSAVERVIEW_H

#define CPSLNSCREENSAVERVIEW_H

//  INCLUDES

#include "PslnPropertySubscriber.h"

// Base classes

#include "PslnBaseView.h"

#include "mpslnscreensaverecomobserver.h"

#include <mpslnfwmsklabelobserver.h>

#include <cenrepnotifyhandler.h>

#include <psmclient.h>

#include <psmclientobserver.h>

class CAknWaitDialog;

/**

*  CPslnBaseView view class.

*  Provides Psln Application Screensaver view.

*

*  @since S60 v3.1

*/

class CPslnScreenSaverView : public CPslnBaseView,

                             public MPslnScreenSaverECOMObserver,

                             public MPslnFWMSKObserver,

                             public MCenRepNotifyHandlerCallback,

                             public MPsmClientObserver

    {

    public:

        /**

        * Two-phased constructor.

        */

        static CPslnScreenSaverView* NewLC();

        /**

        * Destructor.

        */

        virtual ~CPslnScreenSaverView();

        /**

        * From CAknView.

        * Returns view id.

        * @return An unsigned integer (view id).

        */

        TUid Id() const;

        /**

        * From MEikCommandObserver .

        * Handles commands.

        * @param aCommand Command to be handled.

        */

        void HandleCommandL( TInt aCommand );

        /**

        * From MPslnScreenSaverECOMObserver.

        * Called when there is a change in ECOM plugins.

        */

        void HandlePluginListChangeL();

        /**

        * From MPslnFWMSKObserver.

        * Checks if the MSK label needs to be adjusted.

        */

        void CheckMiddleSoftkeyLabelL();

        /**

        * From MPsmClientObserver.

        * Notify when the power save mode is changed.

        */

        void PowerSaveModeChanged( const TPsmsrvMode aMode );

        /**

        * From MPsmClientObserver.

        * Notify when some wrong with the power save mode change.

        */

        void PowerSaveModeChangeError( const TInt aError );

    private:

        /**

        * Callback for exiting Screensaver preview mode.

        * @param aPtr pointer to get reference to self.

        * @return error code.

        */

        static TInt HandlePreviewModeChanged( TAny* aPtr );

        /**

        * Callback for changes in Screensaver preview state.

        * @param aPtr pointer to get reference to self.

        * @return error code.

        */

        static TInt HandlePreviewStateChanged( TAny* aPtr );

        /**

        * From CAknView.

        * Called when view is about to activate.

        */

        void DoActivateL(

            const TVwsViewId& aPrevViewId,

            TUid aCustomMessageId,

            const TDesC8& aCustomMessage );

        /**

        * From CAknView.

        * Called when view is deactivated.

        */

        void DoDeactivate();

        /**

        * From MEikMenuObserver.

        * Changes MenuPane dynamically.

        */

        void DynInitMenuPaneL( TInt aResourceId, CEikMenuPane* aMenuPane );

        /**

        * From MProgressDialogCallback.

        * Called when wait note is removed.

        */

        void DialogDismissedL( TInt aButtonId );

        /**

        * From CPslnBaseView.

        * Handles listbox selection.

        */

        void HandleListBoxSelectionL();

        /**

        * From CPslnBaseView.

        * Creates new container.

        */

        void NewContainerL();

        /**

        * From CPslnBaseView.

        */

        void SetTitlePaneL( TInt& aResourceId );

        /* From MCenRepNotifyHandlerCallback. */

        void HandleNotifyInt( TUint32 aId, TInt /*aNewValue*/ );

        /* From MCenRepNotifyHandlerCallback. */

        void HandleNotifyGeneric( TUint32 aId );

        /* From MCenRepNotifyHandlerCallback. */

        void HandleNotifyError(

            TUint32 aId,

            TInt aError,

            CCenRepNotifyHandler* aHandler );

        /**

        * Handles screensaver activation command.

        */

        void HandleScreenSaverActivationL( TInt aCurrentItem );

        /**

        * Handles screensaver preview command.

        */

        void HandleScreenSaverPreviewL( TInt aCurrentItem );

        /**

        * Handles screensaver settings command.

        */

        void HandleScreenSaverSettingsL( TInt aCurrentItem );

        /**

        * Launches opening note.

        */

        void LaunchNote();

        /**

        * Same as above, but might leave.

        */

        void LaunchNoteL();

        /**

        * Removes opening note and stops listening for screensaver preview

        * state changes.

        */

        void RemoveNote();

        /**

        * Same as above, but might leave.

        */

        void RemoveNoteL();

        /**

        * Checks if screensaver function can be called, and if so makes

        * the call through PslnEngine.

        */

        void DoInvokeScreenSaverFunctionL(

            const TInt aCurrentItem,

            const TScPluginCaps aType );

        /**

        * Creates preview mode subscriber.

        */

		void CreatePreviewModeSubscriberL();

        /**

        * Creates preview state subscriber.

        */

        void CreatePreviewStateSubscriberL();

        /**

        * Remove command and label from MSK.

        */

        void RemoveCommandFromMSK();

        /**

        * Is 'Change' command visible.

        */

        TBool IsChangeCommandVisibleL() const;

        /**

        * Is 'Apply' command visible.

        */

        TBool IsApplyCommandVisibleL() const;

        /**

        * C++ default constructor.

        */

        CPslnScreenSaverView();

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

    private:

        /**

        * Publish & Subscribe item for setting Preview mode.

        */

        RProperty iPreviewModeProperty;

        /**

        * Publish & Subscribe item for setting Preview state.

        */

        RProperty iPreviewStateProperty;

        /**

        * Publish & Subscribe listener for Preview mode.

        * Own.

        */

        CPslnPropertySubscriber* iPreviewModeSubscriber;

        /**

        * Publish & Subscribe listener for Preview state.

        * Own.

        */

        CPslnPropertySubscriber* iPreviewStateSubscriber;

        /**

        * Wait note wrapper.

        * Own.

        */

        CAknWaitDialog* iWaitDlg;

        /**

        * Index of plugin screensaver that is previewed.

        */

        TInt iScreenSaverPreviewIndex;

        /**

        * Repository for active screensaver.

        * Own.

        */

        CRepository* iScreenSaverRepository;

        /**

        * Notifier for changes in the screensaver repository.

        * Own.

        */

        CCenRepNotifyHandler* iScreenSaverNotifier;

        CPsmClient *iPsmClient;

    };

#endif      // CPSLNSCREENSAVERVIEW_H

// End of File