/*

* Copyright (c) 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:

*

*/

#include <apgcli.h>

#include <swi/sisregistrysession.h>

#include <swi/sisregistryentry.h>

#include <WidgetRegistryClient.h>

#include <javaregistry.h>

#include <javaregistrypackageentry.h>

#include <javaregistryapplicationentry.h>

#include <mcsmenuutils.h>

#include "mcsdef.h"

#include "mcsmenu.h"

#include "mcsmenuitem.h"

#include "menuuninstalloperation.h"

_LIT8( KAppMimeType, "x-epoc/x-sisx-app" );

_LIT8( KMidletMimeType, "application/java-archive" );

_LIT8( KWidgetMimeType, "application/x-nokia-widget");

const TUid KMidletType = { 0x10210E26 };

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

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

// CMenuUninstallOperation::~CMenuUninstallOperation

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

//

CMenuUninstallOperation::~CMenuUninstallOperation()

    {

    Cancel();

    iUninstaller.Close();

    delete iRemoveOperation;

    }

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

// CMenuUninstallOperation::NewL

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

//

CMenuUninstallOperation* CMenuUninstallOperation::NewL(

    RMenu &aMenu,

    TInt aPriority,

    TRequestStatus &aObserverStatus,

    CMenuItem& aItem )

    {

    CMenuUninstallOperation* self;

    self = new ( ELeave ) CMenuUninstallOperation( aMenu, aPriority, aObserverStatus );

    CleanupStack::PushL( self );

    self->ConstructL( aItem );

    CleanupStack::Pop( self );

    return self;

    }

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

// CMenuUninstallOperation::CMenuUninstallOperation

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

//

CMenuUninstallOperation::CMenuUninstallOperation

( RMenu &aMenu, TInt aPriority, TRequestStatus &aObserverStatus )

: CMenuOperation( aMenu, aPriority, aObserverStatus ),

iState( EIdle ),

iRemoveOperation( NULL )

    {

    CActiveScheduler::Add( this );

    }

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

// CMenuUninstallOperation::ConstructL

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

//

void CMenuUninstallOperation::ConstructL( CMenuItem& aItem )

    {

    TBool exists;

    TPtrC uidAttr( aItem.GetAttributeL( KMenuAttrUid, exists ) );

    TUint uid;

    TUid packageUid = KNullUid;

    TPtrC8 mimeType;

    if( !exists )

        {

        User::Leave( KErrCorrupt );

        }

    if( aItem.Flags() & TMenuItem::ELockDelete )

    	{

        iObserverStatus = KRequestPending;

        SetActive();

        TRequestStatus* status = &iStatus;

        User::RequestComplete( status, KErrAccessDenied );

        return;

    	}

    User::LeaveIfError( iUninstaller.Connect() );

    iId = aItem.Id();

    // Prepare parameters

    MenuUtils::GetTUint( uidAttr, uid );

    AppInfoL( TUid::Uid( uid ), mimeType, packageUid );

    // Commence the uninstallations

    iUninstaller.Uninstall( iStatus, packageUid, mimeType );

    iObserverStatus = KRequestPending;

    if( mimeType == KMidletMimeType()

            && IsWidgetL( TUid::Uid( uid ) ) )	

		{

    	//we remove java type app(it will gain different uid

		//during next install) and widget type app(it MIGHT get

		//different uid during next install) from xml

    	iState = EUninstalling;

    	}

    else

    	{

    	//if its not java or widget app we leave it in xml,

    	//appscanner will hide it for later passible reinstallation 

    	iState = ERemoving;

    	}

    SetActive();

    }

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

// CMenuUninstallOperation::AppInfo

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

//

void CMenuUninstallOperation::AppInfoL( const TUid& aAppUid, TPtrC8& aMimeType, TUid& aPackageUid )

	{

	TUid typeUid;

	RApaLsSession apaLsSession;

	User::LeaveIfError( apaLsSession.Connect() );

	CleanupClosePushL( apaLsSession );

	User::LeaveIfError( apaLsSession.GetAllApps() );

    if( KErrNone == apaLsSession.GetAppType( typeUid, aAppUid  ) &&

    		typeUid == KMidletType )

        {

        GetJavaSuitUidL( aAppUid, aPackageUid );

        aMimeType.Set( KMidletMimeType );

        }

    else if( IsWidgetL( aAppUid ) )

        {

        aPackageUid = aAppUid;

        aMimeType.Set( KWidgetMimeType );

        }

    else

        {

        TApaAppInfo appInfo;

        User::LeaveIfError( apaLsSession.GetAppInfo( appInfo, aAppUid ) );

        if( !GetInstallPkgUidL( appInfo.iFullName, aPackageUid ) )

        	{

        	aPackageUid = aAppUid;

        	}

        aMimeType.Set( KAppMimeType );

        }

    CleanupStack::PopAndDestroy( &apaLsSession );

	}

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

// CMenuUninstallOperation::GetInstallPkgUidL

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

//

TBool CMenuUninstallOperation::GetInstallPkgUidL( const TDesC& aAppFullName, TUid& aPackageUid )

	{

	// Search for the full name of the application amongst every file name in

	// every installed packages.

	TBool found = EFalse;

	Swi::RSisRegistrySession iSisRegSession;

	// Get the array of ids of every installed packages

	if( KErrNone != iSisRegSession.Connect() )

		{

		return found;

		}

	CleanupClosePushL( iSisRegSession );

    RArray<TUid> packageIds;

    CleanupClosePushL( packageIds );

    iSisRegSession.InstalledUidsL( packageIds );

    RPointerArray< HBufC > packageFiles;

    CleanupClosePushL( packageFiles );

    for( TInt i = 0; i < packageIds.Count() && !found; ++i )

        {

        const TUid packageId = packageIds[i];

        Swi::RSisRegistryEntry packageEntry;

        // Get the array of file names in the current install package and look

        // if there is one suggesting that the application was installed from

        // the package.

        if( KErrNone == packageEntry.Open( iSisRegSession, packageId ) )

        	{

	        CleanupClosePushL( packageEntry );

	        packageEntry.FilesL( packageFiles );

	        for( TInt pf = 0; pf < packageFiles.Count() && !found; ++pf )

	            {

	            if( packageFiles[pf]->FindC( aAppFullName ) == 0 )

	                {

	                aPackageUid = packageId;

	                found = ETrue;

	                }

	            }

	        packageFiles.ResetAndDestroy();

	        CleanupStack::PopAndDestroy( &packageEntry );    

        	}

        }

    CleanupStack::PopAndDestroy( &packageFiles );

    CleanupStack::PopAndDestroy( &packageIds );

    CleanupStack::PopAndDestroy( &iSisRegSession );

    return found;

	}

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

// CMenuUninstallOperation::GetJavaSuitUidL

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

//

void CMenuUninstallOperation::GetJavaSuitUidL( const TUid& aAppUid, TUid& aPackageUid )

	{

	Java::CJavaRegistry* javaRegistry;

	javaRegistry = Java::CJavaRegistry::NewLC();

	Java::CJavaRegistryEntry* regEntry = 

		javaRegistry->RegistryEntryL( aAppUid );

	if( regEntry )

		{

	CleanupStack::PushL( regEntry );

	Java::TJavaRegistryEntryType entryType = regEntry->Type();

	if ( ( entryType >= Java::EGeneralPackage ) && 

			(entryType < Java::EGeneralApplication) )

		{

		//package entry

		aPackageUid = regEntry->Uid();

		}

	else 

		{

		//application entry

		Java::CJavaRegistryApplicationEntry* regApplicationEntry = 

			static_cast<Java::CJavaRegistryApplicationEntry*>( regEntry );

		Java::CJavaRegistryPackageEntry* regPackageEntry = 

			regApplicationEntry->PackageEntryL();

		aPackageUid = regPackageEntry->Uid();

		delete regPackageEntry;

		}

		CleanupStack::PopAndDestroy( regEntry );

		}

	else

		{

		aPackageUid = aAppUid;

		}

	CleanupStack::PopAndDestroy( javaRegistry );

	}

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

// CMenuUninstallOperation::IsWidget

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

//

TBool CMenuUninstallOperation::IsWidgetL( const TUid& aAppUid )

	{

	RWidgetRegistryClientSession widgetReg;

	TBool isWidget;

	if( KErrNone != widgetReg.Connect() )

		{

		return EFalse;

		}

	CleanupClosePushL( widgetReg);

	isWidget = widgetReg.IsWidget( aAppUid );

	CleanupStack::PopAndDestroy( &widgetReg );

	return isWidget;

	}

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

// CMenuUninstallOperation::RunL

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

//

void CMenuUninstallOperation::RunL()

    {

    if( KErrNone == iStatus.Int() )

        {

        switch( iState )

            {

            case EUninstalling:

                {

                __ASSERT_DEBUG( NULL == iRemoveOperation, User::Invariant() );

                iState = ERemoving;

                iRemoveOperation = iMenu.RemoveL( iId, iStatus );

                SetActive();

                }

                break;

            case ERemoving:

                {

                delete iRemoveOperation;

                iRemoveOperation = NULL;

                iState = EIdle;

                TRequestStatus* status = &iObserverStatus;

                User::RequestComplete( status, iStatus.Int() );

                }

                break;

            default:

                // Object is in an unexpected state

                __ASSERT_DEBUG( 0, User::Invariant() );

            }

        }

    else if ( KErrNotFound == iStatus.Int() && iState == ERemoving )

    	{

    	// Most probably: After uninstalling the application the application

    	// scanner removed the corresponding item from the xml so not finding

    	// the menuitem is not an error here.

        delete iRemoveOperation;

        iRemoveOperation = NULL;

        iState = EIdle;

        TRequestStatus* status = &iObserverStatus;

        User::RequestComplete( status, KErrNone );

    	}

    else

        {

        // Report error

        delete iRemoveOperation;

        iRemoveOperation = NULL;

        iState = EIdle;

        TRequestStatus* status = &iObserverStatus;

        User::RequestComplete( status, iStatus.Int() );

        }

    }

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

// CMenuUninstallOperation::DoCancel

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

//

void CMenuUninstallOperation::DoCancel()

    {

    switch( iState )

        {

        case EUninstalling:

            {

            iState = EIdle;

            }

            break;

        case ERemoving:

            {

            delete iRemoveOperation;

            iRemoveOperation = NULL;

            iState = EIdle;

            }

            break;

        default:

            // Object is in an unexpected state

            __ASSERT_DEBUG( 0, User::Invariant() );

        }

    iUninstaller.CancelAsyncRequest( SwiUI::ERequestUninstall );

    // Complete the caller:

    TRequestStatus* status = &iObserverStatus;

    User::RequestComplete( status, iStatus.Int() );

    }

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

// CMenuUninstallOperation::RunError

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

//

TInt CMenuUninstallOperation::RunError( TInt aError )

    {

    TRequestStatus* status = &iObserverStatus;

    User::RequestComplete( status, aError );

    return KErrNone;

    }