/*

* Copyright (c) 2008 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:   Declares view class of View architecture for Event view.

*

*/

#ifndef CALENEVENTVIEW_H

#define CALENEVENTVIEW_H

// Include Files

#include <calentoolbar.h>                       // MCalenToolbarObserver

#include "calennativeview.h"

//Forward declarations

class CAknButton;

class CCalenEventViewContainer;

// class declaration

/**

 * Declares view for event view

 */

NONSHARABLE_CLASS(CCalenEventView):public CCalenNativeView

	{

public: // Constructors and destructor

    /**

     * Two-phased constructor.

     */

    IMPORT_C static CCalenEventView* NewL( MCalenServices& aServices );

    /**

     * Destructor.

     */

    virtual ~CCalenEventView();

public:  // From CCalenView

    virtual TNextPopulationStep ActiveStepL();

    virtual void CancelPopulation();

    virtual TCyclePosition CyclePosition() const;

    virtual const TDesC& LocalisedViewNameL( CCalenView::TViewName aViewName );

    virtual CGulIcon* CCalenEventView::ViewIconL() const;

protected:  // From CCalenNativeView

    /**

     * Clears view specific data

     */

    virtual void ClearViewSpecificDataL();

private:

    /**

     * By default Symbian OS constructor is private.

     */

    void ConstructL();

    /**

     * C++ constructor.

     */

    CCalenEventView( MCalenServices& aServices );

protected:

    /**

     * From CCalenView Second phase DoActivateL

     */

    void DoActivateImplL(	const TVwsViewId& aPrevViewId,

                            TUid aCustomMessageId,

                            const TDesC8& aCustomMessage );

    /**

     * From CCalenView Second phase DoDeactivate

     */

    void DoDeactivateImpl();

  	/**

     * From CCalenView. Called when locale was changed and

     *                 time was crossed over

     */

    void OnLocaleChangedL(TInt aReason);

public: // From CCalenView

    /**

     * Redraw status pane when Form is closed

     **/

    void RedrawStatusPaneL();

    /**

     * From CCalenView Creates CCalenContainer

     **/

    CCalenContainer* CreateContainerImplL();

    /**

     * From CCalenView. Normal command handling method.

     * needed for MSK.

     */

    void HandleCommandL(TInt aCommand);

    /**

    * Checks whether event viewer is launched from alarm or not.

    * @return ETrue, if event viewer launched from alarm(MSK case).

    */

    TBool IsAlarmActiveInViewer(); // IsEventViewerLaunchedFromAlarm

public:

    /**

     * Update CBA buttons depending on if we have items or not in view

     * Callend from Day Container as well as DoActivateViewImpl.

     * 

     */

    void UpdateCbaL();

private:  // From MEikMenuObserver

    /**

     * From MEikMenuObserver Changes MenuPane dynamically

     */

    void DynInitMenuPaneL(TInt aResourceId, CEikMenuPane* aMenuPane);

private:  // From CAknView

    TUid Id() const;

	// For toolbar support

	/**

	* Create calendar toolbar buttons

	*/

	CAknButton* CreateButtonL( CGulIcon* aIcon, 

                               const TDesC& aText,

                               TInt aTooltipID,

                               CAknToolbar& aToolbar );

    /**

	* Removes the event viewer toolbar buttons and unhides the view cycling buttons

	*/                           

    void RemoveToolbarButtonsL();

    /**

	* Adds the necessary toolbar buttons on the existing toolbar for event viewer

	*/

    void AddToolbarButtonsL();

    /**

     * Updates the toolbar buttons on the existing toolbar for event viewer

     */

    void UpdateToolbarButtonsL();

    /**

     * Set date to Status pane. Default implementation does nothing.

     * @param aTime it will be refrect to StatusPane

     */

    void SetStatusPaneFromActiveContextL();

private:

    TVwsViewId iPreviousViewId;  

private: 

    enum TPopulationStep

        {

		ENothingDone,

		EBuildTextEditor,

		ERequestInstanceView,

		EAddField,

		EPopulationDone	

        };

    enum TEventViewCBA

	    {	    

	    EShowClose=1,

	    EShowAlarm,

	    EShowAlarmStopOnly,

	    EShowBack	    	

	    };    

    TEventViewCBA iEventViewCBA;

    TPopulationStep iPopulationStep;

 	};

#endif // CALENEVENTVIEW_H