// Copyright (c) 2003-2009 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 "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members

// which accompanies this distribution, and is available

// at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// Help Launcher module

// 

//

#ifndef __HLPLCH_H__

#define __HLPLCH_H__

#if !defined(__APGTASK_H__)

#include <apgtask.h>

#endif

#if !defined(__EIKDLL_H__)

#include <eikdll.h>

#endif

#if !defined(__WSERV_H__)

#include <w32std.h>

#endif

#if !defined(__COEHELP_H__)

#include <coehelp.h>

#endif

/** Help application UID. 

@internalComponent

@released

*/

const TUid KHlpAppUid={ 0x10005234 };

/** UID of window message to send to application. 

@internalComponent

@released

*/

const TUid KHlpAppWsMsg={ 0x100055c7 };

/** Maximum length of command line to launch application. 

@internalComponent

@released

*/

const TInt KMaxCmdLineLength = 512;

// resource file name

_LIT(KHelpLauncherResource, "z:\\resource\\apps\\lch.rsc");

class CHlpCmdLine : public CBase

/**

@internalComponent

@released

*/

	{

public:

	static CHlpCmdLine* NewL(CArrayFix<TCoeHelpContext>* aContextList);

	static CHlpCmdLine* NewLC(CArrayFix<TCoeHelpContext>* aContextList);

	~CHlpCmdLine();

public:

	TPtr8 CmdLineL();

private:

	void BuildCmdLineL();

	void AddContextL(TCoeHelpContext& aContext);

private:

	void ConstructL();

	CHlpCmdLine(CArrayFix<TCoeHelpContext>* aContextList);

private:

	CArrayFix<TCoeHelpContext>* iContextList;

	CBufFlat* iCmdLine;

	};

class HlpLauncher

/** Launches the help application.

It assumes that such an application is at z:\\Sys\\Bin\\CsHelp.exe

@publishedAll

@released

*/

	{

public:

	IMPORT_C	static void LaunchHelpApplicationL(RWsSession& aWsSession, CArrayFix<TCoeHelpContext>* aContextList);

	IMPORT_C	static void LaunchHelpApplicationL(RWsSession& aWsSession, TUid aUid);

	IMPORT_C	static void LaunchHelpApplicationL(RWsSession& aWsSession);

private:

	static void DoLaunchHelpApplicationL(RWsSession& aWsSession, const TDesC8& aCmdLine);

	};

#endif