/*

 * Copyright (c) 2008-2009 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:    AppUi class 

 *

 */

#include "glxivwrappui.h"

#include <avkon.hrh>

#include <StringLoader.h>    

#include <aknnotewrappers.h>

#include <AknUtils.h>

#include <mpxviewutility.h>

#include <mpxcollectionutility.h>

#include <mpxcollectionmessage.h>

#include <mpxmessagegeneraldefs.h>

#include <mpxcollectionpath.h>

#include <alf/alfenv.h>

#include <akntoolbar.h>

#include <glxgallery.hrh>

#include <glxcollectionpluginimageviewer.hrh>

#include <glxfiltergeneraldefs.h>

#include <glxpanic.h>

#include <glxuistd.h>

#include <glxviewpluginuids.hrh>

#include <glxlog.h>

#include <glxuiutility.h>

#include <glxsettingsmodel.h>

#include <glxcommandhandlers.hrh>

#include <glxzoomstatepublisher.h>

#include <glxnavigationalstate.h>

#include <glxnavigationalstatedefs.h>

#include <glxfullscreenviewplugin.hrh>

#include <glxivwr.rsg>

#include <AknGlobalNote.h>

#include <glxtracer.h>

#include <glxbackservicewrapper.h>

#include <glxuistd.h>

#include <apgcli.h>

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

// Constructor

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

//

CGlxIVwrAppUi::CGlxIVwrAppUi()

    {

    }

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

// ConstructL is called by the application framework

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

//

void CGlxIVwrAppUi::ConstructL()

    {

    TRACER("void CGlxIVwrAppUi::ConstructL()");

    // Enable Avkon skins.

    BaseConstructL( EAknEnableSkin | EAknEnableMSK | EAknSingleClickCompatible );

    // Create navigational state 

    iNavigationalState = CGlxNavigationalState::InstanceL();

    iNavigationalState->AddObserverL( *this );

    // Create Back Stepping Service wrapper

    iBSWrapper = CGlxBackServiceWrapper::NewL( TUid::Uid( KGlxGalleryApplicationUid ) );

    iNavigationalState->SetBackExitStatus(EFalse);

    // Get an instance of view utility

    iViewUtility = MMPXViewUtility::UtilityL();

    iUiUtility = CGlxUiUtility::UtilityL();

    // Always start in default orientation

    iUiUtility->SetAppOrientationL(EGlxOrientationDefault);

    // publish zoom context, no zoom keys for now

    NGlxZoomStatePublisher::PublishStateL( EFalse );

    }

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

// Destructor

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

//

CGlxIVwrAppUi::~CGlxIVwrAppUi()

    {

    TRACER("CGlxIVwrAppUi::~CGlxIVwrAppUi()");

    if ( iNavigationalState )

        {

        iNavigationalState->RemoveObserver(*this);

        iNavigationalState->Close();

        }

    if ( iViewUtility )

        {

        iViewUtility->Close();

        }

    delete iActivationParam;

    if ( iUiUtility )

        {

        iUiUtility->Close();

        }

    if( iBSWrapper )

        {	

        delete iBSWrapper;    

        }

    }

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

// HandleCommandL

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

//

void CGlxIVwrAppUi::HandleCommandL(TInt aCommand)

    {

    TRACER("void CGlxIVwrAppUi::HandleCommandL(TInt aCommand)");

    GLX_LOG_INFO1("PHOTOS LOGS: void CGlxIVwrAppUi::HandleCommandL(TInt aCommand = %d)",aCommand );

    switch(aCommand)

        {

        case EEikCmdExit:

            {

            Exit();

            }

            break;

        case EAknSoftkeyExit:

            {

            CloseImgVwr();

            GLX_LOG_INFO("CGlxIVwrAppUi::HandleCommandL: Exit() being Called");

            Exit();

            }

            break;

        case EAknSoftkeyBack:

            iNavigationalState->ActivatePreviousViewL();

            break;

        default:

            break;

        }

    }

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

// ProcessCommandParametersL

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

//

TBool CGlxIVwrAppUi::ProcessCommandParametersL(TApaCommand aCommand,

        TFileName& aDocumentName, const TDesC8& aTail)

    {

    TRACER("TBool CGlxIVwrAppUi::ProcessCommandParametersL(TApaCommand /*aCommand*/,TFileName& /*aDocumentName*/, const TDesC8& aTail)");

    TRAPD(err, HandleActivationMessageL(aCommand, aDocumentName, aTail));

    if ( KErrNone != err )

        {

        // Open collection for main view

        iStartupViewUid = TUid::Null();

        // Open navigational state at root level

        CMPXCollectionPath* newState = CMPXCollectionPath::NewL();

        CleanupStack::PushL( newState );

        iNavigationalState->NavigateToL( *newState );

        CleanupStack::PopAndDestroy( newState );

        }

    if(0 == aTail.CompareC(KNullDesC8))

        {

        return ETrue;

        }

    else

        {

        return EFalse;

        }

    }

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

// Handle navigational state change

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

//

void CGlxIVwrAppUi::HandleNavigationalStateChangedL()

    {

    TRACER("void CGlxIVwrAppUi::HandleNavigationalStateChangedL()");

    // get current navigational state

    CMPXCollectionPath* naviState = iNavigationalState->StateLC();

    // Case: Open photos in grid, go to filemanager via menu and open any image

    if (naviState->Id() != TMPXItemId(KGlxCollectionPluginImageViewerImplementationUid))

        {

        /*

         * This thread chk is added for EDDG-7UUC53. In this scenario we get EPathChanged from MPX.

         * That initiates a viewnavigational change from CGlxNavigationalStateImp  HandleCollectionMessageL()

         * In these types of scenarios we don't want a view switch. So ignoring the event. 

         */

        TApaTaskList taskList( iCoeEnv->WsSession() );

        TApaTask task = taskList.FindApp( TUid::Uid( KGlxGalleryApplicationUid ) );

        TApaTask taskForeGround = taskList.FindByPos(0); // get fopreground app

        if ( task.Exists() && task.ThreadId() != taskForeGround.ThreadId() )

            {

            GLX_LOG_INFO("CGlxIVwrAppUi ::HandleNavigationalStateChanged: Return ");

            return;

            }

        }

    CleanupStack::PopAndDestroy( naviState );

    HBufC* activationParam = iActivationParam;

    iActivationParam = NULL; // release ownership

    CleanupStack::PushL( activationParam );

    if ( TUid::Null() != iStartupViewUid )

        {

        GLX_LOG_INFO("CGlxAppUi::HandleNavigationalStateChanged: Activating startup view");

        // Activate startup view

        iViewUtility->ActivateViewL( iStartupViewUid, activationParam );

        iStartupViewUid = TUid::Null();

        }

    else

        {

        GLX_LOG_INFO("CGlxAppUi::HandleNavigationalStateChanged: Activating view");

        // get ids for scoring a view

        RArray< TUid > scoringIds;

        CleanupClosePushL( scoringIds );

        GetViewScoringIdsL( scoringIds );

        GLX_LOG_INFO1( "CGlxIVwrAppUi::HandleNavigationalStateChanged: Uid count %d", scoringIds.Count());

        // let view utility to select the best view based on scoring ids

        iViewUtility->ActivateViewL( scoringIds, activationParam );

        CleanupStack::PopAndDestroy( &scoringIds );

        }

    CleanupStack::PopAndDestroy( activationParam );

    }

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

// Populate array with view scoring ids

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

//

void CGlxIVwrAppUi::GetViewScoringIdsL( RArray<TUid>& aIds ) const

{

TRACER("void CGlxIVwrAppUi::GetViewScoringIdsL( RArray<TUid>& aIds ) const");

aIds.Reset(); // For maintenance safety

// get current navigational state

CMPXCollectionPath* naviState = iNavigationalState->StateLC();

// no if check in needed here ,it makes the aapui aware of the list view depth

// to be removed.added by gopa   

if ( naviState->Levels() >= 1)

    {

    if (iNavigationalState->ViewingMode() == NGlxNavigationalState::EBrowse) 

        {

        // For image viewer collection, goto view mode

        if (naviState->Id() == TMPXItemId(KGlxCollectionPluginImageViewerImplementationUid))

            {

            aIds.AppendL( TUid::Uid(  KGlxViewingModeView ) );

            }

        else

            {

            aIds.AppendL( TUid::Uid(  KGlxViewingModeBrowse ) );

            }

        } 

    else 

        {

        aIds.AppendL( TUid::Uid(  KGlxViewingModeView ) );

        }                 

    }

if( TUid::Null() != GetViewScoringIdForCollectionPlugin( *naviState ) )

    {

    // add scoring id for collection plugin

    aIds.AppendL( GetViewScoringIdForCollectionPlugin( *naviState ) );

    }

if( TUid::Null() != ViewScoringIdForNaviStateDepth( *naviState ) )

    {

    // add scoring id for depth in the ui hierarchy

    aIds.AppendL( ViewScoringIdForNaviStateDepth( *naviState ) );

    }

CleanupStack::PopAndDestroy( naviState );

}

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

// Handles the foreground events

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

//

void CGlxIVwrAppUi::HandleForegroundEventL( TBool aForeground )

    {

    TRACER("void CGlxIVwrAppUi::HandleForegroundEventL( TBool aForeground )");

    // first let base class handle it so that we dont break anything

    CAknViewAppUi::HandleForegroundEventL( aForeground );

    }

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

// Return scoring id for collection plugin

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

//

TUid CGlxIVwrAppUi::GetViewScoringIdForCollectionPlugin( const CMPXCollectionPath& aNaviState ) const

{

TRACER("TUid CGlxIVwrAppUi::GetViewScoringIdForCollectionPluginL( const CMPXCollectionPath& aNaviState ) const");

GLX_LOG_INFO1( "CGlxIVwrAppUi::GetViewScoringIdForCollectionPluginL: Depth %d", aNaviState.Levels() );

// score view based on collection plugin if not on root level

if ( aNaviState.Levels() )

    {

    return TUid::Uid( aNaviState.Id( 0 ) );

    }

// return null as id to be ignored in scoring

return TUid::Null(); 

}

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

// Return scoring id for depth

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

//

TUid CGlxIVwrAppUi::ViewScoringIdForNaviStateDepth( const CMPXCollectionPath& aNaviState ) const

{

TRACER("TUid CGlxIVwrAppUi::ViewScoringIdForNaviStateDepthL( const CMPXCollectionPath& aNaviState ) const");

GLX_LOG_INFO1( "CGlxIVwrAppUi::ViewScoringIdForNaviStateDepthL: Level %d", aNaviState.Levels() );

switch ( aNaviState.Levels() )

    {

    case 0:

        GLX_LOG_INFO1( "CGlxIVwrAppUi::ViewScoringIdForNaviStateDepthL: \

                Depth  case 0 %x", TUid::Uid( KGlxDepthOne ) );

        return TUid::Uid( KGlxDepthOne );

    case 1:

        GLX_LOG_INFO1( "CGlxIVwrAppUi::ViewScoringIdForNaviStateDepthL: \

                Depth case 1 %x", TUid::Uid( KGlxDepthTwo ) );

        return TUid::Uid( KGlxDepthTwo );

    case 2:

        GLX_LOG_INFO1( "CGlxIVwrAppUi::GetViewScoringIdForUiHieararchyDepthL: \

                Depth case 2 %x", TUid::Uid( KGlxDepthThree ) );

        return TUid::Uid( KGlxDepthThree );

    default:

        GLX_LOG_WARNING( "CGlxIVwrAppUi::GetViewScoringIdsL: Navigational state deeper than supported" );

        // return null as an id to be ignored in scoring

        return TUid::Null(); 

    }

}

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

// HandleActivationMessageL

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

//

void CGlxIVwrAppUi::HandleActivationMessageL(const TApaCommand& aCommand, 

        const TFileName& aDocumentName, const TDesC8& aData)

    {

    TRACER("void CGlxIVwrAppUi::HandleActivationMessageL(const TApaCommand& aCommand, const TFileName& aDocumentName, const TDesC8& aData)");

    delete iActivationParam;

    iActivationParam = NULL;

    if ( 0 == aData.CompareC(KNullDesC8) )

        {

        CMPXCollectionPath* path = CMPXCollectionPath::NewL();

        CleanupStack::PushL(path);

        path->AppendL( KGlxCollectionPluginImageViewerImplementationUid );

        iNavigationalState->NavigateToL( *path );

        CleanupStack::PopAndDestroy( path );

        }

    // Introduced to fix bug EMJN-78GH6N. Rowland Cook 10/12/2007

    if (0 != iEikonEnv->RootWin().OrdinalPosition())

        {

        iEikonEnv->RootWin().SetOrdinalPosition(0);

        }

    }

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

// SetActivationParamL

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

//

void CGlxIVwrAppUi::SetActivationParamL(const TDesC8& aParam)

    {

    TRACER("void CGlxIVwrAppUi::SetActivationParamL(const TDesC8& aParam)");

    iActivationParam = HBufC::NewL(aParam.Length());

    iActivationParam->Des().Copy(aParam);

    }

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

// HandleApplicationSpecificEventL

// 

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

//

void CGlxIVwrAppUi::HandleApplicationSpecificEventL(TInt aEventType, const TWsEvent& aWsEvent)

    {

    TRACER("CGlxIVwrAppUi::HandleApplicationSpecificEventL");

    CAknViewAppUi::HandleApplicationSpecificEventL(aEventType,aWsEvent);

    if(aWsEvent.Type() == KAknUidValueEndKeyCloseEvent)

        {

        CloseImgVwr();

        }

    }

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

// CloseImgVwr

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

//

void CGlxIVwrAppUi::CloseImgVwr()

    {

    TRACER("CGlxNsAppUi::CloseImgVwr()");

    iUiUtility->SetViewNavigationDirection(EGlxNavigationBackwards);

    iUiUtility->SetExitingState(ETrue);         

    }