/*

* Copyright (c) 2006, 2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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: 

*

*/

#include "WidgetUiAppUi.h"

#include "WidgetUiWindowView.h"

#include "WidgetUiWindowManager.h"

#include "WidgetUiWindow.h"

#include "WidgetUiAsyncExit.h"

#include "widgetappdefs.rh"

#include <WidgetUi.rsg>

#include "WidgetUi.hrh"

#include <S32MEM.H>

#include <avkon.hrh>

#include <e32std.h>

#include <bautils.h>

#include <oommonitorplugin.h>

#include <BrowserDialogsProvider.h>

#include <e32property.h>

// EXTERNAL DATA STRUCTURES

// EXTERNAL FUNCTION PROTOTYPES

// CONSTANTS

// const TUid KWidgetAppUid  = TUid::Uid( 0x10282822 );

// MACROS

// LOCAL CONSTANTS AND MACROS

// MODULE DATA STRUCTURES

// LOCAL FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

// ============================= LOCAL FUNCTIONS ================================

static void NotifyWidgetRunning()

    {

    const TUid KMyPropertyCat = { 0x10282E5A };

    enum TMyPropertyKeys { EMyPropertyState = 109 };

    TInt state( 1 );

    RProperty::Set( KMyPropertyCat, EMyPropertyState , state );

    }

// ============================ MEMBER FUNCTIONS ================================

//

CWidgetUiAppUi::CWidgetUiAppUi()

    {

    //Nothing

    }

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

// CWidgetUiAppUi::ConstructL

// Symbian constructor

//

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

//

void CWidgetUiAppUi::ConstructL()

    {

    CWidgetUiWindowView* contentView( NULL );

    BaseConstructL( EAknEnableSkin | EAknEnableMSK );

    //

    iWindowManager = CWidgetUiWindowManager::NewL( *this );

    iWidgetUiAsyncExit = CWidgetUiAsyncExit::NewL( *this );

    iDelayedForegroundEvent = CIdle::NewL(CActive::EPriorityIdle);

    contentView = CWidgetUiWindowView::NewLC( *iWindowManager );

    iWindowManager->SetView( *contentView );

    // Transfer ownership to CAknViewAppUi

    AddViewL( contentView );

    CleanupStack::Pop( contentView );

    SetRotationSupport();

    LoadAdditionalResourcefile();

    }

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

// CWidgetUiAppUi::LoadAdditionalResourcefile

// Load resource file for creating dynamic options menu

//

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

//

void CWidgetUiAppUi::LoadAdditionalResourcefile()

    {

    // add widgetmenu resource file to the coe environment

    // load resource file

    TFileName resourceFileName;

    TParse parse;

    CEikAppUi* pAppUI = (CEikAppUi*)(CCoeEnv::Static()->AppUi());

    TFileName dllName = pAppUI->Application()->DllName();

    parse.Set( dllName, NULL, NULL );

    resourceFileName += parse.Drive();

     _LIT(WIDGET_RESOURCE_DIR,"\\resource\\");

    resourceFileName += WIDGET_RESOURCE_DIR;

    resourceFileName += _L("widgetmenu.rsc");

    CCoeEnv* coeEnv = CCoeEnv::Static();

    BaflUtils::NearestLanguageFile( coeEnv->FsSession(), resourceFileName  );

    iResourceFile = coeEnv->AddResourceFileL( resourceFileName );

    }

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

// CWidgetUiAppUi::~CWidgetUiAppUi

// Destructor

//

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

//

CWidgetUiAppUi::~CWidgetUiAppUi()

    {

    // remove resource file

    CCoeEnv::Static()->DeleteResourceFile( iResourceFile );

    delete iWindowManager;

    if (iDelayedForegroundEvent)

        {

        iDelayedForegroundEvent->Cancel(); 

        }

    delete iDelayedForegroundEvent;

    delete iWidgetUiAsyncExit;

    }

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

// CWidgetUiAppUi::::DynInitMenuPaneL

// This function is called by the EIKON framework just before it displays

// a menu pane. Its default implementation is empty, and by overriding it,

// the application can set the state of menu items dynamically according

// to the state of application data.

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

//

void CWidgetUiAppUi::DynInitMenuPaneL( TInt aResourceId, CEikMenuPane* aMenuPane )

    {

    ActiveView()->DynInitMenuPaneL( aResourceId, aMenuPane );

    }

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

// CWidgetUiAppUi::HandleCommandL

// Handles user commands

//

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

//

void CWidgetUiAppUi::HandleCommandL(TInt aCommand)

    {

    switch ( aCommand )

        {

        case EEikCmdExit:

            {

            Exit();

            break;

            }

        default:

            {

            break;

            }

        }

    }

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

// CWidgetUiAppUi::ActiveView

// returns the app UI's currently active view

//

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

//

CAknView* CWidgetUiAppUi::ActiveView()

    {

    TVwsViewId activeViewId;

    if ( GetActiveViewId( activeViewId ) == KErrNone )

        {

        return View( activeViewId.iViewUid );

        }

    return NULL;

    }

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

// CWidgetUiAppUi::ProcessCommandParametersL

// Process shell commands

//

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

//

TBool CWidgetUiAppUi::ProcessCommandParametersL(CApaCommandLine &aCommandLine)

    {   

    TBool res( ETrue );

    const TPtrC doc( aCommandLine.DocumentName() );

    TInt len( doc.Length() * 2 );

    if ( len )

        {

        HBufC8* params( HBufC8::NewMaxLC( len ) );

        Mem::Copy( 

            const_cast< TUint8* >( params->Ptr() ),

            reinterpret_cast< const TUint16* >( doc.Ptr() ),

            len );

        LaunchWindowL( *params );

        CleanupStack::PopAndDestroy( params );

        }

    else

        {

        res = CEikAppUi::ProcessCommandParametersL( aCommandLine );

        }

    return res;

}

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

// CWidgetUiAppUi::LaunchWindowL

// Process shell commands

//

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

//

void CWidgetUiAppUi::LaunchWindowL( const TDesC8& aMessage )

    {

    TUid uid( KNullUid );

    TUint32 operation( 0 );

    ProcessMessageArgumentsL( aMessage, uid, operation );

    iWindowManager->HandleWidgetCommandL( uid, operation );

    // Widget is up and running, notify that next one can be launched

    // TODO magic numbers from Launcher.

    if( operation == LaunchMiniview )

        {

        NotifyWidgetRunning();

        }

    }

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

// CWidgetUiAppUi::HandleMessageL

// Called by WidgetLaucher

//

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

//

MCoeMessageObserver::TMessageResponse CWidgetUiAppUi::HandleMessageL(

                    TUint32 aClientHandleOfTargetWindowGroup,

                    TUid aMessageUid,

                    const TDesC8& aMessageParameters )

    {

    MCoeMessageObserver::TMessageResponse res( EMessageNotHandled );

    // TODO Magic number 1 comes from Widget Launcher.

    if ( ( aMessageUid == TUid::Uid( 1 ) ) )

        {

        // Hide red exclamation marks, as it is the habit of UI applications.

        LaunchWindowL( aMessageParameters );

        res = EMessageHandled;

        }

    else

        {

        res = CAknViewAppUi::HandleMessageL( 

            aClientHandleOfTargetWindowGroup,

            aMessageUid,

            aMessageParameters );

        }

    return res;

    }

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

// CWidgetUiAppUi::HandleResourceChangeL

// Handles change to the application's resources shared across the environment

//

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

//

void CWidgetUiAppUi::HandleResourceChangeL( TInt aType )

    {

    CAknViewAppUi::HandleResourceChangeL( aType );

    if ( aType == KEikDynamicLayoutVariantSwitch && iWindowManager && iWindowManager->ActiveWindow())

        {

        iWindowManager->ActiveWindow()->Relayout();

        }

    }

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

// CWidgetUiAppUi::HandleWsEventL

// Handles events sent to the application by the window server

//

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

//

void CWidgetUiAppUi::HandleWsEventL(

    const TWsEvent& aEvent, CCoeControl* aDestination )

    {

    if ( aEvent.Type() == KAknUidValueEndKeyCloseEvent )

        {

        return;

        }

    if ( aEvent.Type() == EEventUser )

        {

        // Fetch the event data of the user event. Content of the event data:

        // bits 0-31: Uid of the WidgetAppUi to check if the event should be

        // handled here.

        // bits 32-63: Uid of the widget that should be closed.

        TUint8* eventData = aEvent.EventData();

        // Check if first 32 bits of event data contains uid of WidgetAppUi

        if ( ( TUint32& )*eventData == KWidgetAppUid )

            {

            eventData += sizeof( TUint32 );

            // Fetch uid of the widget that should be to be closed.

            TInt32 uidInteger = ( TInt32& )*eventData;

            TUid widgetUid = TUid::Uid( uidInteger );

            // Close the running widget with uid widgetUid

            //iWindowManager->CloseWindow( widgetUid );

            iWindowManager->Exit( EEikCmdExit,widgetUid );

            TWsEvent event;

            event.SetType(EEventWindowGroupListChanged);

            event.SetTimeNow();

            iEikonEnv->WsSession().SendEventToWindowGroup(

                iEikonEnv->WsSession().GetFocusWindowGroup(), event);

            return;

            }

        }

    CAknViewAppUi::HandleWsEventL( aEvent, aDestination );

    }

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

// CWidgetUiAppUi::HandleForegroundEventL

// called when application goes to background or comes back to foreground.

//

// Although WindowManager::OpenOrCreateWindowL does handle opening a new window,

// we have to worry about "blank screen" / "resume" in power save operations.

// It is true that there is now overhead with HandleForegroundEventL( ETrue )

// and OpenOrCreateWindowL. The latter might need some checking, or e.g.

// blinking might occur (flip the old widget visible, then open a new one).

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

//

void CWidgetUiAppUi::HandleForegroundEventL( TBool aForeground )

    {

    iIsForeground = aForeground;

    if ( !iDelayedForegroundEvent->IsActive() )

        {

        iDelayedForegroundEvent->Start(TCallBack(HandleDelayedForegroundEventCallback,this));

        }

    }

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

// CWidgetUiAppUi::HandleApplicationSpecificEventL

// called when application specific events like OOM from window server are triggered

//

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

//

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

    {

    CAknAppUi::HandleApplicationSpecificEventL(aEventType, aWsEvent);

    if ( iWindowManager )

        {

        if(aEventType == KAppOomMonitor_FreeRam )

            {

            iWindowManager->HandleOOMEventL(iIsForeground);

            }

        else if(aEventType == KAppOomMonitor_MemoryGood && iWindowManager->ActiveWindow())

            {

            iWindowManager->ActiveWindow()->Engine()->HandleCommandL( 

                                (TInt)TBrCtlDefs::ECommandMemoryGood + (TInt)TBrCtlDefs::ECommandIdBase);

            }

        }

    }

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

// CWidgetUiAppUi::SendAppToBackground

// force the application to the background

//

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

//

void CWidgetUiAppUi::SendAppToBackground()

    {

    TApaTaskList taskList( CEikonEnv::Static()->WsSession() );

    TUid wapUid( TUid::Uid( KWidgetAppUid ) );

    TApaTask task = taskList.FindApp( wapUid );

    task.SendToBackground();

    }

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

// CWidgetUiAppUi::SetRotationSupport()

// check to see if screen oriantation can be changed

// this code must match Widget::Widget in WidgetEngine

//

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

//

void CWidgetUiAppUi::SetRotationSupport()

    {

    iRotationSupported = iAvkonAppUi->OrientationCanBeChanged();

    }

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

// CWidgetUiAppUi::SetDisplayLandscapeL()

// switch the display orientation to landscape

//

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

//

void CWidgetUiAppUi::SetDisplayLandscapeL( )

    {

    if (!iRotationSupported) return;

    if ( Orientation() == EAppUiOrientationPortrait )

        {

        SetOrientationL(EAppUiOrientationLandscape);

        }

    else if (Orientation() == EAppUiOrientationUnspecified)

        {

        TRect rect = ApplicationRect();

        TInt width = rect.Width();

        TInt height = rect.Height();

        if (width < height)

            {

            SetOrientationL(EAppUiOrientationLandscape);

            }

        }

    }

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

// CWidgetUiAppUi::SetDisplayPortraitL()

// switch the display orientation to portrait

//

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

//

void CWidgetUiAppUi::SetDisplayPortraitL( )

    {

    if (!iRotationSupported) return;

    if ( Orientation() == EAppUiOrientationLandscape )

        {

        SetOrientationL(EAppUiOrientationPortrait);

        }

    else if (Orientation() == EAppUiOrientationUnspecified)

        {

        TRect rect = ApplicationRect();

        TInt width = rect.Width();

        TInt height = rect.Height();

        if (width > height)

            {

            SetOrientationL(EAppUiOrientationPortrait);

            }

        }

    }

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

// CWidgetUiAppUi::SetDisplayAuto()

// switch the display orientation to default device orientation

//

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

//

void CWidgetUiAppUi::SetDisplayAuto( )

    {

    TRAP_IGNORE(SetOrientationL(EAppUiOrientationAutomatic));

    }

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

// CWidgetUiAppUi::AsyncExit()

// start an async exit

//

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

//

void CWidgetUiAppUi::AsyncExit( TBool aAllWidgets )

    {

    if (aAllWidgets && iWindowManager)

        {

        iWindowManager->CloseAllWindowsExceptCurrent();

        }

    iWidgetUiAsyncExit->Start(); // close current and exits app if no widgets left running

    }

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

// CWidgetUiAppUi::HandleDelayedForegroundEventCallback()

// CIdle callback function to handle delayed foreground events for WidgetUI

//

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

//

TInt CWidgetUiAppUi::HandleDelayedForegroundEventCallback( TAny* aAppUi )

    {

    return ((CWidgetUiAppUi*)aAppUi)->HandleDelayedForegroundEvent();

    }

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

// CWidgetUiAppUi::HandleDelayedForegroundEvent()

// function to handle delayed foreground events for WidgetUI

//

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

//

TInt CWidgetUiAppUi::HandleDelayedForegroundEvent( )

    {

    if (iWindowManager)

        {

        iWindowManager->HandleForegroundEvent(iIsForeground);

        }

    return (KErrNone);

    }

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

// CWidgetUiWindowManager::RegisterWidgetL

//

// Register widget to CPS listener.

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