/*

* Copyright (c) 2002-2005 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:  Container class for main view.

*

*/

#ifndef GSCONTAINER_H

#define GSCONTAINER_H

#include    "gsbasecontainer.h"

#include    <bldvariant.hrh>

#include    <AknIconArray.h>

#include    <AknsUtils.h>     // For loading icons

#include    <gsmainview.h>

// CLASS DECLARATION

class CAknViewAppUi;

class CAknSingleLargeStyleListBox;

class CGSPluginInterface;

class CGsContainerExt;

/**

* Container class for the GS Main view.

* @since Series60_3.1

*/

class CGSMainContainer : public CCoeControl, public MEikListBoxObserver

{

    public: // Constructors and destructor

        /**

        * Symbian OS constructor.

        * Required by the base class.

        *

        */

        void ConstructL(

            const TRect& aRect,

            CAknViewAppUi* aAppUi,

            CArrayPtrFlat<CGSPluginInterface>* aPluginArray );

        /**

        * Destructor.

        */

        ~CGSMainContainer();

    public: // New

        /**

        * Updates listbox.

        */

        void UpdateListBoxL();

        /**

        * @return pointer to owned listbox.

        */

        CAknSingleLargeStyleListBox* ListBox();

        /**

        * @return Plugin which is selected in the lbx.

        */

        CGSPluginInterface* SelectedPlugin();

        /**

        * Sets selected lbx item using the UID of the item. If the item is not

        * existing or visible anymore, selected item is the first item in the

        * lbx.

        */

        void SetSelectedItem( TUid aSelectedItemUid );

        /**

         * Set the empty text of list box.

         */

        void SetListBoxEmptyTextL(const TDes& aEmpty);

        /**

         * Store listbox's exact position.

         * @param aPosition includes the exact position of the listbox.

         */

        void StoreListBoxPositionL( CGSMainView::TListBoxPosition& aPosition );

        /**

         * Restore listbox's exact position.

         * @param aPosition includes the exact position of the listbox.

         * @param aScreenModeChanged indicates whether the screen mode is changed.

         */

        void RestoreListBoxPositionL( const CGSMainView::TListBoxPosition& aPosition, TBool aScreenModeChanged );

    public: // From CCoeControl

        /**

        * See base class.

        */

        void HandleResourceChange( TInt aType );

        /**

        * Set focus on the selected listbox. For animated skins feature.

        */

        void FocusChanged( TDrawNow aDrawNow );

    protected: // New

        /**

        * Required for help.

        */

        void GetHelpContext( TCoeHelpContext& aContext ) const;

    protected: // From MEikListBoxObserver

        /**

        * Handles listbox events.

        * @param aListBox Listbox where the event occurred.

        * @param aEventType Event type.

        */

        void HandleListBoxEventL( CEikListBox* aListBox,

                                  TListBoxEvent aEventType );

    private: // New

        /**

        * Adds plugin data to listbox.

        * @param aPlugin A plugin whose data is to be used.

        * @param aIndex Index of the plugin in the listbox.

        * @param aItemTextArray Array for plugin texts and format strings used

        *        by lbx.

        * @param aIconArray Array for icons used in lbx.

        */

        void AddPluginDataToLbxL( CGSPluginInterface* aPlugin,

                                  TInt aIndex,

                                  CDesCArray* aItemTextArray,

                                  CAknIconArray* aIconArray );

    private: // From CCoeControl

        /**

        * See base class.

        */

        void SizeChanged();

        /**

        * See base class.

        */

        TInt CountComponentControls() const;

        /**

        * See base class.

        */

        CCoeControl* ComponentControl( TInt /*aIndex*/ ) const;

        /**

        * See base class.

        */

        TKeyResponse OfferKeyEventL( const TKeyEvent& aKeyEvent,

                                     TEventCode aType );

    private: // Data

        // Owned listbox.

        CAknSingleLargeStyleListBox* iListBox;

        // Pointer to Application UI. Not owned.

        CAknViewAppUi* iAppUi;

        /**

        * Pointer to listbox model's item texts. Note that the indexes of

        * listbox items are mapped directly to the indexes in plugin array.

        * Plugin which maps to selected listbox item index in plugin array is

        * activated when item is selected in listbox.

        *

        * Owned by iListBox.

        */

        CDesCArray* iItemTextArray;

        // Given from CGSMainView - not owned

        CArrayPtrFlat<CGSPluginInterface>* iPluginArray;

        // Array of pointers to iPluginArray plugins which are visible.

        // This is the actual array which is displayed by the listbox.

        // It is needed because iPluginArray also contains non-visible plugins

        // and therefore the indexes do not match to lbx items.

        CArrayPtrFlat<CGSPluginInterface>* iVisiblePlugins;

        // Extension for main container.

        CGsContainerExt* iExt;

};

#endif // GSCONTAINER_H

// End of File