/*

* Copyright (c) 2005-2008 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:  General Settings User Interface

*

*/

// INCLUDE FILES

#include    <bldvariant.hrh>

#include    <eikapp.h>

#include    <avkon.hrh>

#include    <akncontext.h>

#include    <aknnotewrappers.h>

#include    <aknnavi.h>

#include    <aknnavide.h>

#include    <akntabgrp.h>

#include    <akntitle.h>

#include    <AknUtils.h>

#include    <AknsConstants.h> // For determining skin change

#include    <barsread.h>

#include    <StringLoader.h>

#include    <gsapp.rsg>

#include    <eikenv.h>

#include    <ConeResLoader.h>

#include    <apgcli.h>

#include    <f32file.h>

#include    <hlplch.h> // For HlpLauncher

#include    <w32std.h>

#include    <eikproc.h> // Embedding CC in GS

#include    <aknclearer.h> // Embedding CC in GS

#include    <apacln.h> // Embedding CC in GS

#include    <PSVariables.h>

#include    <e32std.h> // The USER class

#include    <featmgr.h>

#include    <s32mem.h>

#include    <gsplugininterface.h>

#include    <gsbaseview.h>

#include    <gsfwviewuids.h>

#include  <apgwgnam.h>

#include    "GsLogger.h"

#include    "GSUi.h"

#include    <gsmainview.h>

#include    "GSDocument.h"

#include    "gssettingid.h"

#include    <mgswatchdog.h>

// System Includes

#include  <e32property.h>

#include <sbdefs.h>

using namespace conn;

//CONSTANTS

const TInt KGSPhoneAppID = 0x100058b3;

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

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

// CGSUi::CGSUi()

//

// Default constructor.

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

CGSUi::CGSUi()

    {

    }

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

// CGSUi::~CGSUi()

// destructor

//

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

CGSUi::~CGSUi()

    {

    GSDocument().PrepareForUIDestruction();

    FeatureManager::UnInitializeLib();

    //Embedding - removing created document

    if ( iEmbedded )

        {

        iEikonEnv->Process()->DestroyDocument( iEmbedded );

        }

    if( iEComNotifier )

        {

        delete iEComNotifier;

        }

    }

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

// CGSUi::ConstructL()

//

// Symbian OS two-phased constructor

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

void CGSUi::ConstructL()

    {

    __GSLOGSTRING( "[CGSUi] ConstructL()" );

    FeatureManager::InitializeLibL();

    BaseConstructL( EAknEnableSkin | EAknEnableMSK |EAknSingleClickCompatible );

    TInt backupInfo = 0;

  const TInt error = RProperty::Get( TUid::Uid( KUidSystemCategoryValue ),

                             KUidBackupRestoreKey,

                             backupInfo );

  // We check if the backup/restore process is underway

  if  ( error == KErrNone )

    {

        // Work out what kind of operation is underway:

    if ( ( backupInfo & KBURPartTypeMask ) == EBURNormal ||

         ( backupInfo & KBURPartTypeMask ) == EBURUnset )

      {

      ConstructViewsL();

      //Activate the main view to be the first view when

      // application is opened.

      SetDefaultViewL( *iMainView );

      }

    else

      {

      if ( ( backupInfo & KBURPartTypeMask) == EBURBackupFull ||

           ( backupInfo & KBURPartTypeMask) == EBURBackupPartial )

        {

            // Backup In Progress.. show a Note and Dont Launch GS

            ShowNoteGsNotOpenedDuringBackupRestoreL();

        }

      else if ( ( backupInfo & KBURPartTypeMask) == EBURRestoreFull ||

                ( backupInfo & KBURPartTypeMask) == EBURRestorePartial )

        {

            // Restore In Progress.. show a Note and Dont Launch GS

                    ShowNoteGsNotOpenedDuringBackupRestoreL();

        }

      }

    }

    GSDocument().PreparePluginCacheL( *this );

    // This will observe plugin install events.

    iEComNotifier = CGSEComNotifier::NewL( this, GSDocument().GetImplInfo() );

    }

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

// CGSUi::ConstructViewsL()

//

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

void CGSUi::ConstructViewsL()

    {

    __GSLOGSTRING( "[CGSUi] Constructing views..." );

    iMainView = CGSMainView::NewL();

    AddViewL( iMainView );         // transfer ownership to CAknViewAppUi

    __GSLOGSTRING( "[CGSUi] Constructing views done." );

    }

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

// CGSUi::HandleCommandL(TInt aCommand)

//

//

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

void CGSUi::HandleCommandL( TInt aCommand )

    {

    __GSLOGSTRING1( "[CGSUi] HandleCommandL(%d)", aCommand );

    switch ( aCommand )

        {

        case EEikCmdExit:

        case EAknCmdExit:

        case EAknSoftkeyExit:

        #ifdef GS_ENABLE_WATCH_DOG

            GSDocument().WatchDog()->ReportCleanExitL();

        #endif

            Exit();

            break;

        default:

            break;

        }

    }

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

// CGSUi::HandleResourceChangeL()

//

//

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

//

void CGSUi::HandleResourceChangeL( TInt aType )

    {

    CAknViewAppUi::HandleResourceChangeL( aType );

    }

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

// CGSUi::HandleKeyEventL()

//

//

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

TKeyResponse CGSUi::HandleKeyEventL( const TKeyEvent& aKeyEvent,

                                     TEventCode aType )

    {

    __GSLOGSTRING1( "[CGSUi] HandleKeyEventL(code:%d)", aKeyEvent.iCode );

    CAknNavigationControlContainer* naviContainer =

        static_cast<CAknNavigationControlContainer*>

        ( StatusPane()->ControlL( TUid::Uid(EEikStatusPaneUidNavi ) ) );

    TKeyResponse response = EKeyWasNotConsumed;

    if( naviContainer )

        {

        CAknNavigationDecorator* naviDec = naviContainer->Top();

        if( naviDec )

            {

            CCoeControl* decControl = naviDec->DecoratedControl();

            if( decControl)

                {

                response = decControl->OfferKeyEventL( aKeyEvent, aType );

                }

            }

        }

    return response;

    }

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

// CGSUi::PhoneIdle()

//

//

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

//

void CGSUi::PhoneIdle()

    {

    TRAP_IGNORE( CreateActivateViewEventL( TVwsViewId( TUid::Uid( KGSPhoneAppID ),

        TUid::Uid( KGSPhoneAppID ) ), KNullUid, KNullDesC8() ) );

    }

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

// CGSUi::EmbedAppL()

//

// Launches application as embedded.

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

//

void CGSUi::EmbedAppL( const TAppInfo& aApp )

    {

    if ( iEmbedded )

        {

        iEikonEnv->Process()->DestroyDocument( iEmbedded );

        iEmbedded = NULL;

        }

    CAknLocalScreenClearer* clearer = CAknLocalScreenClearer::NewLC();

    CEikProcess* process = iEikonEnv->Process();

    TApaApplicationFactory apaAppFactory( aApp.iUid );

    iEmbedded = process->AddNewDocumentL( apaAppFactory );

    TApaDocCleanupItem cleanup( process, iEmbedded );

    CleanupStack::PushL( cleanup );

    iEmbedded->NewDocumentL();

    CleanupStack::Pop();

    iEmbedded->EditL( NULL );

    CleanupStack::PopAndDestroy( clearer );

    }

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

// CGSUi::Document()

//

//

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

//

CGSDocument& CGSUi::GSDocument() const

    {

    CGSDocument* doc = static_cast< CGSDocument* >( Document() );

    return *doc;

    }

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

// CGSUi::ShowNoteGsNotOpenedDuringBackupRestoreL()

//

//

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

//

void CGSUi::ShowNoteGsNotOpenedDuringBackupRestoreL()

    {

    HBufC* prompt =

     StringLoader::LoadL( R_CONFIRM_NOTE_GS_EXIT_BACKUP_RESTORE_STRING );

    CleanupStack::PushL( prompt );

    CAknInformationNote* note =

                new( ELeave ) CAknInformationNote( ETrue );

    note->ExecuteLD( *prompt );

    CleanupStack::PopAndDestroy( prompt );

#ifdef GS_ENABLE_WATCH_DOG

    GSDocument().WatchDog()->ReportCleanExitL();

#endif

    Exit();

    }

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

// CGSUi::HandleMessageL

// Handles messages sent from gslauncher

//

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

//

MCoeMessageObserver::TMessageResponse CGSUi::HandleMessageL(

    TUint32 /*aClientHandleOfTargetWindowGroup*/,

    TUid /*aMessageUid*/,

    const TDesC8 &aMessageParameters )

  {

  const TUint8* ptr = aMessageParameters.Ptr();

  __GSLOGSTRING1( "[CGSUi::HandleMessageL] aMessageParameters: %S", &aMessageParameters );

  FindAndKillEmbeddedAppL();

  TUid viewUid;

  TUid uid2;

  RDesReadStream str;

  str.Open(aMessageParameters);

  str >> viewUid;

  str >> uid2;

  HBufC8* msg8 = HBufC8::NewLC(str, 1024);

  str.Close();

  __GSLOGSTRING1( "[CGSUi::HandleMessageL] Launching  view 0x%x ", viewUid.iUid );

  TVwsViewId id( KUidGS , viewUid );

  if ( !View(viewUid) )

	  {

	  GSDocument().CreateShimmedViewL(viewUid);

	  }

  ActivateViewL( id, uid2, *msg8 );

  CleanupStack::PopAndDestroy( msg8 );

  return MCoeMessageObserver::EMessageNotHandled;

  }

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

// CGSUi::FindAndKillEmbeddedAppL()

// Find possiple child app of GS, and kill it.

//

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

//

TInt CGSUi::FindAndKillEmbeddedAppL()

    {

    RWsSession ws  = CEikonEnv::Static()->WsSession();

    TApaTaskList taskList( ws );

    TApaTask gstask = taskList.FindApp( KUidGS  ); // Find GS

    if ( gstask.Exists() ) // Task should exist

        {

        TInt gswgid = gstask.WgId();

        RArray<RWsSession::TWindowGroupChainInfo> wgrp;

        ws.WindowGroupList( &wgrp );

        TInt i = 0;

        // Loop window groups, find GS's child app

        for ( i=0; i < wgrp.Count() ; ++i )

            {

            TBuf<100> name;

            ws.GetWindowGroupNameFromIdentifier( wgrp[i].iId , name );

            RWsSession::TWindowGroupChainInfo wginfo = wgrp[i];

            __GSLOGSTRING3( "[CGSUi] wginfo %d (%d) '%S'",  wginfo.iId, wginfo.iParentId, &( name.Left( 20 ) )  );

            if ( wginfo.iParentId == gswgid ) // Child of GS found

                {

                CApaWindowGroupName* windowName1 = CApaWindowGroupName::NewLC( ws, wginfo.iId );

                TUid embeddeeuid;

                embeddeeuid = windowName1->AppUid();

                TApaTask embeddee = taskList.FindApp( embeddeeuid );

                // Kill the child app

                if ( embeddee.Exists() )

                    {

                    __GSLOGSTRING2( "[CGSUi] Embeddee: 0x%x  Embeddee thread=0x%x",

                                    embeddeeuid.iUid,

                                    embeddee.ThreadId() );

                    embeddee.KillTask();

                    }

                CleanupStack::PopAndDestroy( windowName1 );  //windowName1

                }

            }

        wgrp.Close();

        }

    return KErrNone;

    }

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

//

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

//

void CGSUi::HandleEComEvent( TEComEvent aEvent )

    {

    /**

     * Quietly close GS if GS-plugin is uninstalled. This is a precaution for

     * scenario where GS-plugin is uninstalled and GS tries to access the

     * plugin even though plugin's resources do not exist anymore.

     *

     * More sophisticated solution would have been to update whole GS plugin

     * structure but this would have been overkill for this very rare use

     * scenario and rather impossible due to BC requirements.

     */

    __GSLOGSTRING1( "[CGSUi::HandleEComEvent] aEvent:%d", aEvent );

    switch( aEvent )

        {

        case MGSEComObserver::EPluginRemoved:

            __GSLOGSTRING( "[CGSUi::HandleAppListEvent] Closing GS..." );

            #ifdef GS_ENABLE_WATCH_DOG

                TRAP_IGNORE( GSDocument().WatchDog()->ReportCleanExitL() );

            #endif

            Exit();

            break;

        default:

            break;

        }

    }

//End of File