/*

* Copyright (c) 2007-2008 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:  Application UI class

*

*/

#ifndef C_MMAPPUI_H

#define C_MMAPPUI_H

// INCLUDES

#include <gfxtranseffect/gfxtranseffect.h>     // for transition effects

#include <akntranseffect.h>                    // for transition effects

#include <e32hashtab.h>

#include <aknappui.h>

#include <akntoolbarobserver.h>

#include <eiklbo.h>

#include <AknsSrvClient.h>

#include "hncontrollerinterface.h"

#include "mmwidgetobserver.h"

#include "hnsuiteobserver.h"

#include "mmactionrequest.h"

#include "hnglobals.h"

// FORWARD DECLARATIONS

class CHnInterface;

class CHnSuiteModel;

class MHnMenuItemModelIterator;

class CAknToolbar;

class CMmWidgetContainer;

class CMmListBoxContainer;

class CMmGridContainer;

class CMmHighlightManager;

class CLiwGenericParamList;

class CHnItemModel;

class CMMExtensionManager;

class CMmTemplateLibrary;

class CMmNoMemory;

class CMmAppkeyHandler;

class CAknStylusPopUpMenu;

/**

 *  @ingroup group_matrixmenu

 *  Matrix Menu Application UI.

 *  Regular AVKON Application UI class, acts as controller for the application.

 *  <br>Implements:

 *  <ul>

 *  <li>MHnControllerInterface - for notifications about model changes.</li>

 *  <li>MAknToolbarObserver - to get notifications about toolbar events.</li>

 *  <li>MMmWidgetObserver -

 *      to get notifications about widget highlight changes.</li>

 *  </ul>

 *

 *  @since S60 v5.0

 */

NONSHARABLE_CLASS(CMmAppUi) : public CAknAppUi,

                            public MHnControllerInterface,

							public MAknToolbarObserver,

                            public MMmWidgetObserver,

                            public MMmActionRequest,

                            public MAknsSkinChangeObserver

	{

public:

	/**

	 * 2nd phase constructor.

	 *

	 * @since S60 v5.0

	 */

	void ConstructL();

	/**

	 * C++ default constructor. This needs to be public due to

	 * the way the framework constructs the AppUi.

	 *

	 * @since S60 v5.0

	 */

	CMmAppUi();

	/**

	 * Virtual Destructor.

	 *

	 * @since S60 v5.0

	 */

	~CMmAppUi();

// from base class CEikAppUi

    /**

     * From CEikAppUi.

     * Handles a change to the application's resources which

     * are shared across the environment. This function calls

     * CEikAppUi::HandleResourceChangeL except when aType is

     * KEikDynamicLayoutVariantSwitch.

     *

     * @since S60 v5.0

     * @param aType The type of resources that have changed.

     */

    void HandleResourceChangeL( TInt aType );

    /**

     * From CEikAppUi.

     * Takes care of Command Line tail handling.

     *

     * @since S60 v5.0

     * @param aCommand Not used by this app.

     * @param aDocumentName Not used by this app.

     * @param aTail Command line tail.

     */

	TBool ProcessCommandParametersL( TApaCommand aCommand,

									TFileName& aDocumentName,

									const TDesC8& aTail );

    /**

     * From CAknAppUi.

     * This method is overriden to ignore certain commands in

     * certain situations. For not ignored commands it simply

     * calls the base class implementation.

     *

     * @param aCommand A command ID.

     */

    void ProcessCommandL(TInt aCommand);

	/**

     * From CEikAppUi.

     * Takes care of Command Line tail handling.

     *

     * @since S60 v5.0

     * @param aUid UID of the message.

     * @param aParams Message params.

     */

	void ProcessMessageL( TUid aUid, const TDesC8& aParams );

	/**

     * From MCoeMessageObserver.

     * Handles window server messages.

     *

     * @since S60 v5.0

     * @param aClientHandleOfTargetWindowGroup The window group that the message was sent to.

     * @param aMessageUid The message UID.

     * @param aMessageParameters The message parameters.

     * @return Indicates whether the message was handled or not handled by the function.

     */

    MCoeMessageObserver::TMessageResponse HandleMessageL(

         TUint32 aClientHandleOfTargetWindowGroup,

         TUid aMessageUid,

         const TDesC8& aMessageParameters );

	/**

     * From MEikMenuObserver (CEikAppUi).

     * Handles dynamic menu pane initialization.

     *

     * @since S60 v5.0

     * @param aResourceId Resource ID of the menu pane.

     * @param aMenuPane The menu pane itself.

     */

    void DynInitMenuPaneL( TInt aResourceId, CEikMenuPane* aMenuPane );

// from base class MHnControllerInterface

    /**

     * From MHnControllerInterface.

     * Notifies UI to start a refresh after content change.

     *

     * @since S60 v5.0

     * @param aRefreshType Type of refresh.

     */

    void NotifyUiRefreshL( const THnUiRefreshType aRefreshType );

// from base class MHnSuiteObserver

    /**

     * From MHnSuiteObserver.

     * Trigger appropriate action on suite model.

     *

     * @since S60 v5.0

     * @param aCustomSuiteEvent Event to perform.

     * @param aModel Suite model where aCustomSuiteEvent should be envoked.

     */

    void HandleSuiteEventL( THnCustomSuiteEvent aCustomSuiteEvent,

                CHnSuiteModel* aModel );

// from base class MEikListBoxObserver

    /**

     * From MEikListBoxObserver.

     * Handles list box events.

     *

     * This pure virtual function is invoked by CEikListBox to

     * notify the observer of list box events.

     *

     * @since S60 v5.0

     * @param aListBox   The originating list box.

     * @param aEventType A code for the event. Further information

     *                   may be obtained by accessing the list box itself.

     */

    void HandleListBoxEventL( CEikListBox* aListBox,

            MEikListBoxObserver::TListBoxEvent aEventType );

// from base class MMmLongTapObserver

    /**

     * From MMmLongTapObserver.

     * Handles long tap event reported by widget container.

     *

     * @since S60 v5.0

     * @param aPenEventLocation The relative to screen pen event location.

     */

    void HandleLongTapEventL( const TPoint& aPenEventLocation );

// from base class MMmKeyEventObserver

    /**

     * From MMmKeyEventObserver.

     * Handles key press events.

     *

     * @since S60 v5.0

     * @param aKeyEvent Key event.

     * @param aType Event type.

     */

    TKeyResponse HandleKeyPressedL( const TKeyEvent &aKeyEvent,

        TEventCode aType );

// from base class MMmDragAndDropObserver

    /**

     * From MMmDragAndDropObserver.

     * Handles the start of dragging of an item.

     *

     * @since S60 v5.0

     * @param aModelItemIndex Index of the dragged item.

     */

    void HandleDragStartL( TInt aModelItemIndex );

    /**

     * From MMmDragAndDropObserver.

     * Handles the event of dragging an item over a different one.

     * Used to change presentation of folder icons to indicate drop into action.

     *

     * @since S60 v5.0

     * @param aModelItemIndex Index of the item.

     */

    void HandleDragOverL( TInt aModelItemIndex );

    /**

     * From MMmDragAndDropObserver.

     * Handles the stop of dragging of an item.

     *

     * @since S60 v5.0

     * @param aModelItemIndex Index of the dragged item.

     */

    void HandleDragStopL( TInt aModelItemIndex );

    /**

     * From MMmDragAndDropObserver.

     * Handles update of dragged item index.

     *

     * @since S60 v5.0

     * @param aModelItemIndex New dragged item index.

     */

    void HandleDraggedIndexUpdatedL( TInt  aModelItemIndex  );

// from base class MAknToolbarObserver

    /**

     * From MAknToolbarObserver.

     * Handles toolbar events for a certain toolbar item.

     *

     * @since S60 v5.0

     * @param aCommand The command ID of some toolbar item.

     */

    void OfferToolbarEventL( TInt aCommand );

//    from base class MHnControllerInterface

    /**

     * From MHnControllerInterface.

     * Execute extension manager action.

     *

     * @since S60 v5.0

     * @param aUid UID of the ECom plugin's.

     * @param aCommand Command which has to be executed on the plugin.

     *                 Request to the Service.

     * @param aEventParamList List of the event parameters needed to

     *                        execute action. Extention Manager is its owner.

     * @return Number representing error code.

     */

    TInt ExecuteExtensionActionL( const TUid aUid , const TDesC& aCommand,

                CLiwGenericParamList* aEventParamList );

    /**

     * Reloads cascade menu map.

     */

    void ReloadCascadeMenuMapL();

    /**

     * Called by the skin server when skin content is changed and the

     * connected client wants to be informed.

     *

     * @since 2.0

     */

    void SkinContentChanged();

    /**

    * Called by the skin server to indicate that the current skin

    * configuration has changed.

    *

    * @param aReason Reason code.

    *

    * @since 2.5

    */

    void SkinConfigurationChanged(

        const TAknsSkinStatusConfigurationChangeReason aReason );

    /**

    * Called by the skin server to indicate that the available

    * skin packages have changed.

    *

    * @param aReason Reason code.

    *

    * @since 2.5

    */

    void SkinPackageChanged(

        const TAknsSkinStatusPackageChangeReason aReason );

private:

    /**

     * Enum defining possible exit types for ExitMenuL method.

     *

     * @since S60 v5.0

     */

    enum TExitType

        {

        EExitReally,

        EExitToIdle,

        EExitToPhone

        };

    /**

     * Enum defining possible exit types for ExitMenuL method.

     *

     * @since S60 v5.0

     */

    enum TExitKeyType

        {

        EExitKeyApplication,

        EExitKeyRed

        };

    /**

     * Defiens edit mode state.

     *

     * @since S60 v5.0

     */

    enum TEditModeStatus

        {

        ENoEditMode,

        ETransitionToEditMode,

        EEditMode,

        ETransitionFromEditMode,

        EFastTransitionFromEditMode

        };

    /**

	 * Indicates if edit mode is on.

	 *

	 * @since S60 v5.0

	 * @return Returns edit mode status.

	 */

    TBool IsEditMode();

    /**

	 * Adjusts highlight when entering or leaving edit mode.

	 *

	 * @since S60 v5.0

	 * @param aOriginalHighlight Highlight that would normally be set

	 * @return A modified value of highlight

	 */

    TInt AdjustEditModeHighlightL( TInt aOriginalHighlight );

    /**

	 * Manages the container lookup.

	 *

	 * @since S60 v5.0

	 * @return Pointer to the container to be loaded, of NULL

	 * 		   if a new container should be created.

	 */

    CMmWidgetContainer* GetAppropriateContainerToLoadL();

    /**

     * Submits an asynchronous service request to show user a message

     * when Matrix Menu is out of memory.

     *

     * @since S60 v5.0

     */

    void HandleOutOfMemoryL();

    /**

     * Resets MM App UI to the initial state (most of the fields).

     *

     * @since S60 v5.0

     */

    void ResetToInitialStateL();

    /**

     * Refreshes menu pane if needed

     */

    void HideMenuPaneIfVisibleL();

// from base class CEikAppUi

	/**

	 * From CEikAppUi.

	 * Takes care of command handling.

	 *

	 * @since S60 v5.0

	 * @param aCommand Command to be handled.

	 */

	void HandleCommandL( TInt aCommand );

	/**

     * From CEikAppUi.

     * Handles Window Server events.

     *

     * @since S60 v5.0

     * @param aEvent Event to be handled.

     * @param aDestination Destination control.

     */

    void HandleWsEventL( const TWsEvent& aEvent, CCoeControl* aDestination );

	/**

     * Indicates if root (main) view is displayed.

     *

     * @since S60 v5.0

     * @return ETrue if root displayed, EFalse otherwise.

     */

	TBool IsRootdisplayedL();

	/**

	 * Handles pen down events for an item.

	 *

	 * @since S60 v5.0

     * @param aIndex Item index.

     */

    void HandleHighlightItemPenDownL( TInt aIndex );

    /**

     * Handles single click event on widget item.

     *

     * @since S60 v5.0

     * @param aIndex Clicked item index.

     */

    void HandleHighlightItemSingleClickedL( TInt aIndex );

    /**

     * Handles drag event.

     *

     * @since S60 v5.0

     */

    void HandleEventDraggingActionedL();

    /**

     * Handles click (select) events for an item.

     *

     * @since S60 v5.0

     * @param aIndex Item index.

     */

    void HandleHighlightItemDoubleClickedL( TInt aIndex );

    /**

     * Handles suite model initialized event.

     *

     * @param aModel Suite model that has been initialized.

     * @since S60 v5.0

     */

    void HandleSuiteModelInitializedL( CHnSuiteModel* aModel );

    /**

     * Handles suite update events.

     *

     * @since S60 v5.0

     */

    void UpdateL();

    /**

     * Handles suite remove events.

     *

     * @since S60 v5.0

     */

    void RemoveL();

    /**

     * Handles suite insert events.

     *

     * @since S60 v5.0

     */

    void InsertL();

	/**

     * Handles the "Back" softkey event.

     *

     * @since S60 v5.0

     */

	void HandleBackCommandL();

    /**

     * Refreshes toolbar.

     *

     * @since S60 v5.0

     */

    void RefreshToolbarL();