/*

* 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:  Used for handling system events (events with EventHandler-prefix).

*

*/

#include <liwservicehandler.h>

#include <liwvariant.h>

#include <liwcommon.h>

#include <UikonInternalPSKeys.h>

#include <e32property.h>

#include "aieventhandler.h"

#include "aixmluiconstants.h"

#include "xmluicontroller.h"

#include "appui.h"

#include "xndomnode.h"

#include "xnuiengineappif.h"

#include "xnnodeappif.h"

#include "aistrcnv.h"

#include <csxhelp/hmsc.hlp.hrh>

#include <hlplch.h>

using namespace AiXmlUiController;

// Action Handler LIW commands

_LIT8( KAHInterface, "IDataAction");

_LIT8( KAHService, "Service.ActionHandler");

_LIT( KLaunchApplication, "launch_application" );

_LIT( KViewActivation, "view_activation" );

_LIT8( KType, "type" );

_LIT8( KLaunchMethod, "launch_method" );

_LIT8( KApplicationUid, "application_uid" );

_LIT8( KViewId, "view_id" );

_LIT8( KViewAppUid, "view_app_uid" );

_LIT8( KMessageUid, "message_uid" );

_LIT8( KAdditionalData, "additional_data" );

_LIT8( KPluginId, "plugin_id" );

_LIT8( KData, "data");

_LIT8( KExecute, "Execute" );

const TInt32 KCASpaAppLauncherPlugin = {0x10282E5F};

const TUid KVoiceCallUidViewId = { 0x10282D81 };

const TUid KVideoCallUid = { 0x101F8681 };

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

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

// Shows the Homescreen specific help item

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

//

static void ShowHelpL( const TDesC& aHelpString )

    {

    TUid fwUid = TUid::Uid( AI_UID3_AIFW_COMMON );

    TCoeContextName helpString;

    helpString.Copy( aHelpString );

    CArrayFixFlat<TCoeHelpContext>* array = 

    new (ELeave) CArrayFixFlat<TCoeHelpContext>(1);

    CleanupStack::PushL( array );

    array->AppendL( TCoeHelpContext( fwUid, helpString ) );

    HlpLauncher::LaunchHelpApplicationL( 

    CCoeEnv::Static()->WsSession(), array );

    CleanupStack::Pop( array );

    }

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

// Activates Phone application either in video call or normal view

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

//

static void ActivatePhoneViewL( CXmlUiController& aUiController )

    {

    TInt topMostAppId = 0;

    RProperty::Get( KPSUidUikon, KUikVideoCallTopApp, topMostAppId );

    TUid appId(TUid::Uid(topMostAppId));

    if( appId == KVideoCallUid)

        {

        const TVwsViewId viewId(appId, appId);

        aUiController.AppUi()->ActivateViewL( viewId, KNullUid, KNullDesC8());  

        }

    else

        {

        const TVwsViewId viewId(appId, KVoiceCallUidViewId);

        aUiController.AppUi()->ActivateViewL( viewId, KVoiceCallUidViewId, KNullDesC8());

        }

    }

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

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

// CAIXuikonEventHandler::CAIXuikonEventHandler()

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

//

CAIEventHandler::CAIEventHandler( CXmlUiController& aUiController )

    {

    }

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

// CAISystemEventHandler::ConstructL()

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

//

void CAIEventHandler::ConstructL()

    {

    }

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

// CAISystemEventHandler::NewL()

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

//

CAIEventHandler* CAIEventHandler::NewL( CXmlUiController& aUiController )

    {

    CAIEventHandler* self =

        new ( ELeave ) CAIEventHandler( aUiController );

    CleanupStack::PushL( self );    

    self->ConstructL();    

    CleanupStack::Pop( self );    

    return self;

    }

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

// CAISystemEventHandler::~CAISystemEventHandler()

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

//

CAIEventHandler::~CAIEventHandler()

    {

    if( iServiceHandler )

        {

        iServiceHandler->Reset();

        }

    delete iServiceHandler;

    }

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

// Handles the restricted ( can be triggered only from view) events and forwards 

// the rest into appropriate functions.

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

//

void CAIEventHandler::HandleEventL( const TDesC8& aEventText, CXnDomNode& aEvent )

    {

    const TDesC8& prefix( AiUiDef::xml::event::KEventHandlerPrefix );

    const TDesC8& event( aEventText.Mid( prefix.Length() ) );

    const TDesC8& ns( iUiController.UiEngineL()->ActiveView()->Namespace() );

    // These events can be excuted from view only

    if( aEvent.Namespace() == ns)

        {

        if ( event == AiUiDef::xml::event::KEventSetOnline )

            {

            iUiController.AppUi()->SetOnlineStateL( ETrue );

            }

        else if ( event == AiUiDef::xml::event::KEventSetOffline )

            {

            iUiController.AppUi()->SetOnlineStateL( EFalse );

            }    

        else if ( event == AiUiDef::xml::event::KEventShowHelp )

            {

            if( iUiController.UiEngineL()->IsEditMode() )

                {

                ShowHelpL( KSET_HLP_HOME_SCREEN_EDIT );

                }

            else

                {

                ShowHelpL( KSET_HLP_HOME_SCREEN );

                }

            }

        else if ( event == AiUiDef::xml::event::KEventActivatePhoneView )

            {

            ActivatePhoneViewL( iUiController );

            }

        }

    if( event == AiUiDef::xml::event::KEventLaunchApp )

        {

        LaunchAppL( aEvent );

        }

    else if( event == AiUiDef::xml::event::KEventActivateView )

        {

        ActivateViewL( aEvent );

        }

    }

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

// Launches app using Action Handler

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

//

void CAIEventHandler::LaunchAppL( CXnDomNode& aEventNode )

    { 

    const TDesC8& uidStr( aEventNode.AttributeValue( AiUiDef::xml::property::KUid ));

    TInt32 uid( 0 );

    User::LeaveIfError( AiUtility::ParseInt( uid, uidStr ) );

    CLiwDefaultMap* map = CLiwDefaultMap::NewL(); 

    map->PushL();

    map->InsertL( KType, TLiwVariant( KLaunchApplication ));

    map->InsertL( KLaunchMethod, TLiwVariant( KCmdLine ));

    map->InsertL( KApplicationUid, TLiwVariant( uid ));

    ExecuteAppLauncherL( *map );

    CleanupStack::PopAndDestroy( map );

    }

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

// Activates view using Action Handler

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

//

void CAIEventHandler::ActivateViewL( CXnDomNode& aEventNode )

    {

    const TDesC8& uidStr( aEventNode.AttributeValue( AiUiDef::xml::property::KUid ));

    const TDesC8& viewIdStr( aEventNode.AttributeValue( AiUiDef::xml::property::KViewId ));

    const TDesC8& messageIdStr( aEventNode.AttributeValue( AiUiDef::xml::property::KMessageId ));

    const TDesC8& messageStr( aEventNode.AttributeValue( AiUiDef::xml::property::KMessage ));

    CLiwDefaultMap* map = CLiwDefaultMap :: NewL(); 

    map->PushL();

    map->InsertL( KType, TLiwVariant( KViewActivation ));

    TInt32 uid( 0 );    

    User::LeaveIfError( AiUtility::ParseInt( uid, uidStr ) );

    map->InsertL( KViewAppUid, TLiwVariant( uid ));

    TInt32 viewId( 0 );

    User::LeaveIfError( AiUtility::ParseInt( viewId, viewIdStr ) );

    map->InsertL( KViewId, TLiwVariant( viewId ));

    if( messageIdStr.Length() != 0 )

        {

        TInt32 messageId( 0 );

        User::LeaveIfError( AiUtility::ParseInt( messageId, messageIdStr ) );

        map->InsertL( KMessageUid, TLiwVariant( messageId ));

        map->InsertL( KAdditionalData, TLiwVariant( messageStr ));

        }

    ExecuteAppLauncherL( *map );

    CleanupStack::PopAndDestroy( map );

    }

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

// Calls the actual LIW interface

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

//

void CAIEventHandler::ExecuteAppLauncherL( CLiwDefaultMap& aMap )

    {

        {

        CLiwGenericParamList& inparam = iServiceHandler->InParamListL();

        CLiwGenericParamList& outparam = iServiceHandler->OutParamListL();

        TLiwGenericParam pluginUid( KPluginId, TLiwVariant( TUid::Uid( KCASpaAppLauncherPlugin )));

        inparam.AppendL( pluginUid );

        TLiwGenericParam data( KData, TLiwVariant( &aMap ));

        inparam.AppendL( data );

        outparam.Reset();

        inparam.Reset();

        }

    }

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

// Gets the Action Handler interface

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

//

MLiwInterface* CAIEventHandler::ActionHandlerInterfaceL( )

    {

    if( !iServiceHandler )

        {

        iServiceHandler = CLiwServiceHandler::NewL();

        }

    CLiwGenericParamList& inParam = iServiceHandler->InParamListL();

    CLiwGenericParamList& outParam = iServiceHandler->OutParamListL();

    CLiwCriteriaItem* crit = CLiwCriteriaItem::NewL( KLiwCmdAsStr, KAHInterface, KAHService);

    CleanupStack::PushL( crit );

    crit->SetServiceClass( TUid::Uid( KLiwClassBase ));

    RCriteriaArray a;

    a.AppendL(crit);    

    iServiceHandler->AttachL(a);

    iServiceHandler->ExecuteServiceCmdL( *crit, inParam, outParam ); 

    CleanupStack::PopAndDestroy( crit );

    a.Reset();

    // find service interface

    TInt pos = 0;

    MLiwInterface* msgInterface = NULL;

    outParam.FindFirst( pos, KAHInterface );

    if ( pos != KErrNotFound ) 

        {

        msgInterface = (outParam)[pos].Value().AsInterface(); 

        }

    outParam.Reset();

    inParam.Reset();

    return msgInterface;

    }

// End of file