/*

* Copyright (c) 2007-2007 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:  This Class provides the functionality to launch the application

*

*/

#include <apgcli.h>

#include <apacmdln.h>

#include <e32std.h>

#include <eikappui.h>

#include <eikenv.h>

#include <e32base.h>

#include <f32file.h>

#include "launcher.h"

#include "launcherobserver.h"

#include "appmanagerservice.h"

_LIT(KBackground ,"Background");

_LIT(KScheme,"s60uid://0x");

const TInt KDocMaxDigitsInHexString = 8; // 32 bits.

const TInt KLen = 2; // "//" for count these

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

// CLauncher::NewLC

// Returns the instance of CLauncher class.

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

CLauncher* CLauncher::NewL( RApaLsSession& aSession )

	{

	CLauncher* self = new ( ELeave )CLauncher( aSession );

	return self;

	}

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

// CLauncher::LaunchApplication

// This function Launch the Given Application

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

 TThreadId  CLauncher::LaunchApplicationL( const TDesC&    aAppId,

                                            const TDesC8&   aCmdLine,

                                            const TOptions& aOptions

                                           )

	{

	TUid appUid;

    TApaAppInfo appInfo;

    //parse the application string

    ParseAppIdL( aAppId, appUid );

    if(!( (0==aOptions.iMode.CompareF( KChained ) || 0 == aOptions.iMode.CompareF( KStandalone )  ) && (0==aOptions.iPostion.CompareF( KBackground ) || 0 == aOptions.iPostion.CompareF( KForeground ) ) ) )

        {

        User::Leave( KErrArgument );

        }

    CApaCommandLine* cmdLine = CApaCommandLine::NewLC();

    //Setting Executable name

    if( KErrNone == iApaLsSession.GetAppInfo( appInfo, appUid) )

        {

        cmdLine->SetExecutableNameL( appInfo.iFullName );

        }

    else

        {

        //Invalid UID

        User::Leave( KErrArgument );

        }

    //Setting command Line Argument

    if ( aCmdLine.Length() )

        {

        cmdLine->SetTailEndL( aCmdLine );

        }

    //Setting Document Name

    if ( aOptions.iDocument.Length() )

        {

        CAppManagerService::ValidateFilePathL(aOptions.iDocument);

        cmdLine->SetDocumentNameL( aOptions.iDocument );

        }

    //Set the Launchine Mode

    if( 0 == aOptions.iMode.CompareF( KChained ) )

       {

       //Chianed mode doesn;t make any sense with background 

       if( 0 != aOptions.iPostion.CompareF( KBackground ) )

	        cmdLine->SetCommandL( EApaCommandRun );

       else

            User::Leave( KErrNotSupported );

       SetChainedModeL( cmdLine, appUid );

       }

    else

        {

         //Setting the Launching postion means either background or foreground

        if( 0 == aOptions.iPostion.CompareF( KBackground ) )

            {

            cmdLine->SetCommandL( EApaCommandBackground );

            }

        else

            {

            cmdLine->SetCommandL( EApaCommandRun );

            }

        }

    // Launch the requested Application

    TThreadId threadNotUsed;

    TRequestStatus requestStatusForRendezvous;

    User::LeaveIfError( iApaLsSession.StartApp( *cmdLine,

								               threadNotUsed,

								               &requestStatusForRendezvous ));

	User::WaitForRequest( requestStatusForRendezvous );

	User::LeaveIfError( requestStatusForRendezvous.Int());

	CleanupStack::PopAndDestroy( cmdLine  );

    return threadNotUsed;

    }

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

// CLauncher::LaunchDocumentL

// This function Launch the Given Document

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

 TThreadId CLauncher::LaunchDocumentL(TDocument& aCriteria,

       	                               const TDesC8& aMimeType,

       	                               const TOptions& aOptions ,

       	                               TDesC& aFileName

       	                               )

    {

    TUid appUid;

    TApaAppInfo appInfo;

    TDataType dataType( aMimeType );

    CApaCommandLine* cmdLine = CApaCommandLine::NewLC();

    TFileName temp;

     //Extracting Application Uid

     if( 0 != aCriteria.iHandle.SubSessionHandle())

         {

         iApaLsSession.AppForDocument( aCriteria.iHandle,appUid,dataType);

         cmdLine->SetCommandL( EApaCommandOpen );

         cmdLine->SetFileByHandleL( aCriteria.iHandle );

         }

    else if (0 != aCriteria.iPath.CompareF(KNullDesC) )

         {

         CAppManagerService::ValidateFilePathL(aCriteria.iPath);

         iApaLsSession.AppForDocument( aCriteria.iPath,appUid,dataType);

         cmdLine->SetCommandL( EApaCommandOpen );

         cmdLine->SetDocumentNameL(aCriteria.iPath );	

         }

    else if ( 0 != aMimeType.CompareF( KNullDesC8 ) )

         {

         iApaLsSession.AppForDataType(dataType,appUid);

         cmdLine->SetCommandL( EApaCommandCreate );

            //This is the logic for handling the buffer right now we are not supported as 

            //underlying S60 classes showing memory leak and pecular behaviour with different 

            //buffer

         	/*if( 0 != aOptions.iBuffer.CompareF( KNullDesC8 ) )

             {

                __UHEAP_MARK;

                CDocumentHandler *temp = CDocumentHandler::NewLC();

                TRAPD (err, temp->SaveL(aOptions.iBuffer,dataType,KEntryAttNormal) );

                temp->GetPath(aFileName);

                __UHEAP_MARKEND;

                CleanupStack::PopAndDestroy( );

             }*/

         //left to the launch application for setting

         cmdLine->SetDocumentNameL( aFileName );

         }

    else

        {

        User::Leave(KErrArgument);

        }

    //extraction application path

    if( KErrNone == iApaLsSession.GetAppInfo( appInfo, appUid) )

        {

        cmdLine->SetExecutableNameL( appInfo.iFullName );

        }

    else

        {

        User::Leave( KErrNotFound );

        }

    //Set the Launchine Mode

    if( 0 == aOptions.iMode.CompareF( KChained ) )

       {

        SetChainedModeL( cmdLine  ,appUid );

       }

    else if ( 0 != aOptions.iMode.CompareF( KStandalone ) ) //The only other mode is "Standalone"

        {   

            User::Leave(KErrArgument);

        }

    // Launch the requested Application

    TThreadId threadNotUsed;

    TRequestStatus requestStatusForRendezvous;

    User::LeaveIfError( iApaLsSession.StartApp( *cmdLine,

								               threadNotUsed,

								               &requestStatusForRendezvous ));

	User::WaitForRequest( requestStatusForRendezvous );

	User::LeaveIfError( requestStatusForRendezvous.Int());

	CleanupStack::PopAndDestroy( cmdLine  );

    return threadNotUsed;

    }

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

// CLauncher::LaunchDocumentL

// This function will parse the application ID string and return the UID

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

void CLauncher::ParseAppIdL( const TDesC & aSource ,TUid & aUid )

{

	// Icoming string : s60uid://0x101f4d90 , output : 0x101f4d90

	if( (aSource.Length() > KScheme.iTypeLength )  &&(0 == aSource.Mid(0,KScheme.iTypeLength).CompareF(KScheme) ) )

		{

		TChar a('/');

		TInt offset = aSource.Locate(a);

		TPtrC uiddata;

		// To chk for pattern ://

		if((0 != aSource.Mid(offset+1,1).Compare(_L("/"))) && (0 != aSource.Mid(offset-1,1).Compare(_L(":"))) )

	    	User::LeaveIfError(KErrArgument);

	    TPtrC a1(aSource.Mid(offset+1,1));

	    TPtrC a2(aSource.Mid(offset-1,1));

		TInt sourcelen = aSource.Length();

		TInt off = offset + KLen;

		TInt len = sourcelen -(off) ;

		uiddata.Set(aSource.Mid(off,len));

		TInt32 uidinint ;

	    User::LeaveIfError( ConvertHexStringToInt32(uiddata,uidinint) );

	    aUid.iUid = uidinint;

		}

	else

		{

		TUid empt(TUid::Null());

		aUid.iUid = empt.iUid;

		}

}

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

// CLauncher::ConvertHexStringToInt32

// This function will convert the Hax string into TInt32

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

TInt CLauncher::ConvertHexStringToInt32(const TDesC& aHexString,TInt32& aInt32 )

    {

    aInt32 = 0;

    TInt pos = aHexString.LocateF( 'x' );

    if ( pos == KErrNotFound )

        {

        pos = 0;

        }

    else

        {

        pos++;

        }

    if( ( aHexString.Length() - pos ) > KDocMaxDigitsInHexString )

        {

        return KErrArgument; // Error: value too big.

        }

    TPtrC hexStringPtr( aHexString.Mid( pos ) );

    TInt64 value64;

    if ( TLex( hexStringPtr ).Val( value64, EHex ) != KErrNone )

        {

        return KErrArgument; // Error: conversion failed.

        }

    aInt32 = value64;

    return KErrNone;

    }

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

// CLauncher::SetChainedModeL

// This function will set the application to launch in chained mode

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

void CLauncher::SetChainedModeL( CApaCommandLine* aCmdLine  , const TUid& aAppUid )

    {

       CEikonEnv* eikEnv = CEikonEnv::Static();

       if( !eikEnv )

           {

	        //Console Based Application can not launch another application in

	        //chained mode

	        User::Leave( KErrNotSupported );

           }

       else

           {

            RWindowGroup& wg = eikEnv->RootWin();

            CEikAppUi* appUi = eikEnv->EikAppUi();

	        // Window chain the client with the current application

	        const TInt parentWindowGroupID = wg.Identifier();

	        if ( parentWindowGroupID )

		        {

		        aCmdLine->SetParentWindowGroupID( parentWindowGroupID );

		        wg.AllowProcessToCreateChildWindowGroups( aAppUid );

		        }

		        if ( appUi )

		        {

     		     appUi->DeactivateActiveViewL();

                }

           }

    }

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

// CLauncher::CLauncher

// Constructor

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

CLauncher::CLauncher( RApaLsSession& aSession ): iApaLsSession( aSession )

	{

	}

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

// CLauncher::~CLauncher

// Destructor

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

CLauncher::~CLauncher( )

	{

	}