/*

* Copyright (c) 2009-2010 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: Item action menu.

*

*/

#include <aknappui.h>

#include <akncollection.h>

#include <aknitemactionmenu.h>

#include <aknlistquerydialog.h>

#include <aknstyluspopupmenu.h>

#include <AknTasHook.h>

#include <avkon.rsg>

#include <eikmenub.h>

#include <eikpanic.h>

#include "akncollectionobserver.h"

#include "aknitemactionmenudata.h"

#include "aknitemactionmenuregister.h"

/**

 * Index for invalid list index.

 */

const TInt KInvalidListIndex( -1 );

// ---------------------------------------------------------------------------

// CAknItemActionMenu::NewL

// ---------------------------------------------------------------------------

//

CAknItemActionMenu* CAknItemActionMenu::NewL(

    {

    CleanupStack::Pop( self );

    return self;

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::NewLC

// ---------------------------------------------------------------------------

//

    {

    CleanupStack::PushL( self );

    self->ConstructL( aCollection );

    return self;

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::~CAknItemActionMenu

// ---------------------------------------------------------------------------

//

CAknItemActionMenu::~CAknItemActionMenu()

    {

    AKNTASHOOK_REMOVE();

    delete iPopupMenu;

    delete iMenuPane;

    delete iMenuData;

    iStates.Close();

    iObservers.Close();

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::RegisterCollectionL

// ---------------------------------------------------------------------------

//

EXPORT_C CAknItemActionMenu* CAknItemActionMenu::RegisterCollectionL(

        MAknCollection& aCollection )

    {

    return AknItemActionMenuRegister::RegisterCollectionL( aCollection );

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::RemoveCollection

// ---------------------------------------------------------------------------

//

EXPORT_C void CAknItemActionMenu::RemoveCollection(

        MAknCollection& aCollection )

    {

    for ( TInt i = 0; i < iStates.Count(); i++ )

        {

        MAknCollection* state( iStates[ i ] );

        if ( state == &aCollection )

            {

            iStates.Remove( i );

            break;

            }

        }

    UnregisterMenu(); 

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::InitMenuL

// ---------------------------------------------------------------------------

//

EXPORT_C TBool CAknItemActionMenu::InitMenuL()

    {

    iMenuData->Reset();

    if ( !iMenuBar )

        {

        AknItemActionMenuRegister::RegisterItemActionMenuL( *this );

        }

    if ( iMenuBar )

        {

        if ( iMenuPane )

            {

            delete iMenuPane;

            iMenuPane = NULL;

            }

        iMenuPane = iMenuBar->PopulateItemActionMenuL( *this );

        }

    else

        {

        return EFalse;

        }

    return iMenuData->Count();

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::ShowMenuL

// ---------------------------------------------------------------------------

//

EXPORT_C void CAknItemActionMenu::ShowMenuL(

        const TPoint& aPosition,

        TUint /*aFlags*/ )

    {

    if ( iMenuData->Count() )

        {

        if ( !iPopupMenu )

            {

            iPopupMenu = CAknStylusPopUpMenu::NewL( this, TPoint() );

            }

        iPopupMenu->Clear();

        iMenuData->AddMenuItemsToStylusPopupMenuL( iPopupMenu );

        iPopupMenu->SetPosition(

                aPosition,

                CAknStylusPopUpMenu::EPositionTypeRightBottom );

        iPopupMenu->ShowMenu();

        }

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::CollectionChanged

// ---------------------------------------------------------------------------

//

EXPORT_C void CAknItemActionMenu::CollectionChanged(

        MAknCollection& aCollection )

    {

    if ( iObservers.Count() && iStates.Find( &aCollection ) != KErrNotFound )

        {

        TBool collectionVisible( aCollection.CollectionState()

                & MAknCollection::EStateCollectionVisible );

        NotifyChangeToActiveObserver( collectionVisible );

        }

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::AddCollectionStateL

// ---------------------------------------------------------------------------

//

void CAknItemActionMenu::AddCollectionStateL(

        MAknCollection& aCollection )

    {

    if ( iStates.Find( &aCollection ) == KErrNotFound )

        {

        iStates.InsertL( &aCollection, 0 );

        }

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::SetMenuBar

// ---------------------------------------------------------------------------

//

void CAknItemActionMenu::SetMenuBar(

        MEikMenuObserver* aMenuObserver,

        CEikMenuBar* aMenuBar )

    {

    iMenuBarObserver = aMenuObserver;

    iMenuBar = aMenuBar;

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::CollectionHighlightVisible

// ---------------------------------------------------------------------------

//

TBool CAknItemActionMenu::CollectionHighlightVisible() const

    {

    TBool highlightVisible( ETrue );

    for ( TInt i = 0; i < iStates.Count(); i++ )

        {

        MAknCollection* collection( iStates[ i ] );

        TUint state = collection->CollectionState();

        highlightVisible = state & MAknCollection::EStateHighlightVisible;

        if ( highlightVisible )

            {

            // Highlight can't be visible if the collection is not visible.

            highlightVisible = state & MAknCollection::EStateCollectionVisible;

            break;

            }

        }

    return highlightVisible;

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::CollectionSoftkeyVisible

// ---------------------------------------------------------------------------

//

TBool CAknItemActionMenu::CollectionSoftkeyVisible(

        TBool aVisibleCollection ) const

    {

    TBool softkeyVisible( ETrue );

    for ( TInt i = 0; i < iStates.Count(); i++ )

        {

        TInt state( iStates[ i ]->CollectionState() );

        if ( !aVisibleCollection

                || state & MAknCollection::EStateCollectionVisible )

            {

            if ( state & MAknCollection::EStateMultipleSelection

                    || state & MAknCollection::EStateViewOnly )

                {

                softkeyVisible = ETrue;

                }

            else

                {

                softkeyVisible =

                    state & MAknCollection::EStateHighlightVisible;

                }

            break;

            }

        }

    return softkeyVisible;

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::MenuData

// ---------------------------------------------------------------------------

//

CAknItemActionMenuData& CAknItemActionMenu::MenuData()

    {

    return *iMenuData;

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::RegisterCollectionObserverL

// ---------------------------------------------------------------------------

//

void CAknItemActionMenu::RegisterCollectionObserverL(

        MAknCollectionObserver& aObserver )

    {

    if ( iObservers.Find( &aObserver ) == KErrNotFound )

        {

        iObservers.InsertL( &aObserver, 0 );

        aObserver.SetItemActionMenu( this );

        }

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::RemoveCollectionObserver

// ---------------------------------------------------------------------------

//

void CAknItemActionMenu::RemoveCollectionObserver(

        MAknCollectionObserver& aObserver )

    {

    TInt index( iObservers.Find( &aObserver ) );

    if ( index != KErrNotFound )

        {

        iObservers.Remove( index );

        UnregisterMenu(); 

        }

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::CollectionCount

// ---------------------------------------------------------------------------

//

TInt CAknItemActionMenu::CollectionCount() const

    {

    return iStates.Count();

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::CAknItemActionMenu

// ---------------------------------------------------------------------------

//

    : iPopupMenu( NULL ),

    iMenuBarObserver( NULL ),

    iMenuBar( NULL ),

    iMenuPane( NULL ),

    {

    AKNTASHOOK_ADD( this, "CAknItemActionMenu" );

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::ConstructL

// ---------------------------------------------------------------------------

//

void CAknItemActionMenu::ConstructL( MAknCollection& aCollection )

    {

    AddCollectionStateL( aCollection );

    iMenuData = CAknItemActionMenuData::NewL();

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::LaunchSubMenuQueryL

// ---------------------------------------------------------------------------

//

TInt CAknItemActionMenu::LaunchSubMenuQueryL( const TDesC& aHeading )

    {

    TInt selectedIndex( KInvalidListIndex );

    if ( iMenuData->Count() )

        {

        CAknListQueryDialog* queryDialog

            = new ( ELeave ) CAknListQueryDialog( &selectedIndex );

        queryDialog->PrepareLC( R_AVKON_ITEM_ACTION_SUB_MENU_QUERY );

        MDesCArray* itemArray = iMenuData->MenuItemsForQueryDialogL();

        queryDialog->SetItemTextArray( itemArray );

        queryDialog->SetOwnershipType( ELbmOwnsItemArray );

        if ( aHeading != KNullDesC && queryDialog->QueryHeading() )

            {

            queryDialog->QueryHeading()->SetTextL( aHeading );

            }

        queryDialog->RunLD();

        }

    return ++selectedIndex;

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::NotifyChangeToActiveObserver

// ---------------------------------------------------------------------------

//

void CAknItemActionMenu::NotifyChangeToActiveObserver(

        TBool aCollectionVisible )

    {

    for ( TInt i = 0; i < iObservers.Count(); i++ )

        {

        MAknCollectionObserver* observer( iObservers[ i ] );

        if ( observer->Active() )

            {

            observer->CollectionChanged( aCollectionVisible );

            break;

            }

        }

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::SetEmphasis

// ---------------------------------------------------------------------------

//

void CAknItemActionMenu::SetEmphasis(

        CCoeControl* /*aMenuControl*/,

        TBool /*aEmphasis*/ )

    {

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::ProcessCommandL

// ---------------------------------------------------------------------------

//

void CAknItemActionMenu::ProcessCommandL( TInt aCommandId )

    {

    MAknCollection* informState ( NULL );

    // Store collection state before sending the command

    for ( TInt i = 0; i < iStates.Count(); i++ )

        {

        MAknCollection* state( iStates[ i ] );

        if ( state->CollectionState()

                & MAknCollection::EStateCollectionVisible )

            {

            informState = state;

            break;

            }

        }       

    if ( aCommandId > 0 )

        {

        TInt cascadeId( iMenuData->MenuItemCascadeId( aCommandId ) );

        if ( cascadeId && iMenuPane )

            {

            TMenuItemTextBuf text = iMenuData->MenuItemText( aCommandId );

            iMenuData->Reset();

            iMenuPane->AddCascadeMenuItemsToActionMenuL(

                    cascadeId, EFalse, *iMenuData );

            aCommandId = LaunchSubMenuQueryL( text );

            }

        if ( aCommandId > 0 && iMenuBarObserver )

            {

            iProcessingCommand = ETrue; 

            iMenuBarObserver->ProcessCommandL(

                    iMenuData->MenuItemCommandId( aCommandId ) );

            iProcessingCommand = EFalse; 

            }

        }

    // Inform collection that submenu was closed

    if ( iStates.Find( informState ) != KErrNotFound ) 

        {

        informState->ItemActionMenuClosed();

        }

    UnregisterMenu(); 

    }

// ---------------------------------------------------------------------------

// CAknItemActionMenu::UnregisterMenu

// ---------------------------------------------------------------------------

//

void CAknItemActionMenu::UnregisterMenu()

    {

    if ( !iProcessingCommand && !iStates.Count() && !iObservers.Count() )

        {

        delete iPopupMenu;

        iPopupMenu = NULL;

        delete iMenuPane;

        iMenuPane = NULL;

        AknItemActionMenuRegister::UnregisterItemActionMenu( *this );

        }

    }

// End of File