windowing/windowserver/nga/SERVER/KEYCLICK.CPP
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:47:50 +0200
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permissions -rw-r--r--
Revision: 201003 Kit: 201005
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// Copyright (c) 2001-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// Definition of the class that manages the keyclick plugin
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// 
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//
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#include "KEYCLICK.H"
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#include "server.h"
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#include "W32CLICK.H"
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#include "panics.h"
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#include "inifile.h"
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#include "advancedpointereventhelper.h"
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CClickMaker* CClick::iHandler=NULL;
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TBool CClick::iIsChangeable=ETrue;
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TBool CClick::iKeyClickOveride=EFalse;
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TBool CClick::iKeyClickEnabled=ETrue;
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TBool CClick::iPenClickEnabled=ETrue;
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RLibrary CClick::iPlugIn;
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TBool CClick::iIsLoaded=EFalse;
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const TUid KClickPlugInDllUid={0x10004F63};
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static _LIT_SECURITY_POLICY_C1(KSecurityPolicy_WriteDeviceData,ECapabilityWriteDeviceData);
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/*static part*/
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void CClick::InitStaticsL()
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	{
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	_LIT(KClickPlugin,"KEYCLICKPLUGIN");
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	TPtrC plugInName;
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	if (WsIniFile->FindVar(KClickPlugin,plugInName))
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		LoadNewLibraryL(plugInName);
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	_LIT(KClickFixed,"KEYCLICKPLUGINFIXED");
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	iIsChangeable=!WsIniFile->FindVar(KClickFixed);
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	}
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void CClick::DeleteStatics()
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	{
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	if (iIsLoaded)
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		{
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		delete iHandler;
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		iHandler=NULL;
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		iPlugIn.Close();
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		}
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	}
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void CClick::KeyEvent(TEventCode aType,const TKeyEvent& aEvent)
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	{
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	WS_ASSERT_DEBUG(iHandler, EWsPanicClickPluginNotLoaded);
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	if (iKeyClickEnabled && !iKeyClickOveride)
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		{
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		TRAP_IGNORE(iHandler->KeyEvent(aType,aEvent)); // TRAP leaves in case the plugin is badly behaved
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		}
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	}
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void CClick::PointerEvent(const TPoint& aScreenPos,const TAdvancedPointerEvent& aEvent)
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	{
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	WS_ASSERT_DEBUG(iHandler, EWsPanicClickPluginNotLoaded);
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	if (iPenClickEnabled)
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		{
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		TAdvancedPointerEvent event;
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		TAdvancedPointerEventHelper::Copy(aEvent,event);
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		event.iParentPosition=aScreenPos;
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		TRAP_IGNORE(iHandler->PointerEvent(event)); // TRAP leaves in case the plugin is badly behaved
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		}
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	}
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void CClick::OtherEvent(TInt aType,TAny* aParam)
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	{
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	WS_ASSERT_DEBUG(iHandler, EWsPanicClickPluginNotLoaded);
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	if (aType!=EEventPointer || iPenClickEnabled)
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		TRAP_IGNORE(iHandler->OtherEvent(aType,aParam)); // TRAP leaves in case the plugin is badly behaved
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	}
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void CClick::LoadNewLibraryL(const TDesC &aDllName)
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	{
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	WS_ASSERT_DEBUG(iIsChangeable, EWsPanicChangeClickPlugin);
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	const TUidType uidType(KDllUid,KClickPlugInDllUid);
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	RLibrary plugIn;
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	User::LeaveIfError(plugIn.Load(aDllName,uidType));
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	CleanupClosePushL(plugIn);
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	CreateCClickHandler function;
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	CClickMaker* handler;
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	function=(CreateCClickHandler)User::LeaveIfNull((TAny*)plugIn.Lookup(1));	//Can only cast function pointer with C-style casts
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	handler=(*function)();
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	if (handler)
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		{
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		Unload();
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		CleanupStack::Pop(&plugIn);
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		iPlugIn=plugIn;
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		iHandler=handler;
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		iIsLoaded=ETrue;
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		}
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	else
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		CleanupStack::PopAndDestroy(&plugIn);
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	}
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   111
/*object part*/
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   112
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   113
void CClick::ConstructL(const TUid& aUid)
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   114
	{
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   115
	NewObjL();
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   116
	iThirdUid=aUid;
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   117
	}
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   118
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   119
void CClick::CommandL(TInt aOpcode,const TAny* aCmdData)
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   120
	{
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   121
	TWsClickCmdUnion pData;
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   122
	pData.any=aCmdData;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   123
	switch(aOpcode)
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   124
		{
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   125
		case EWsClickOpFree:
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   126
			delete this;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   127
			break;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   128
		case EWsClickOpIsLoaded:
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   129
			{
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   130
			TUint reply=0;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   131
			if (IsHandler())
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   132
				reply|=EClickLoaded;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   133
			if (iIsChangeable)
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   134
				reply|=EClickLoadable;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   135
			SetReply(reply);
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   136
			}
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   137
			break;
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   138
		case EWsClickOpUnLoad:
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   139
			{
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   140
			if(!KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for RSoundPlugIn::UnLoad API")))
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   141
				{
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   142
				User::Leave(KErrPermissionDenied);
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   143
				}
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   144
			if (iIsChangeable)
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   145
				Unload();
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   146
			else
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   147
				SetReply(KErrNotSupported);
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   148
			}
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   149
			break;
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   150
		case EWsClickOpLoad:
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   151
			{
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   152
			if(!KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for RSoundPlugIn::Load API")))
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   153
				{
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   154
				User::Leave(KErrPermissionDenied);
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   155
				}
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   156
			if (iIsChangeable)
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   157
				LoadNewLibraryL(iWsOwner->BufferTPtr((TText*)(pData.Int+1),*pData.Int));
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   158
			else 
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   159
				SetReply(KErrNotSupported);
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   160
			}
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   161
			break;
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   162
		case EWsClickOpSetKeyClick:
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   163
			{
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   164
			if(KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for RSoundPlugIn::SetKeyClick API")))
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   165
				{
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   166
				iKeyClickEnabled=*pData.Bool;
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   167
				}
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   168
			}
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   169
			break;
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   170
		case EWsClickOpSetPenClick:
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   171
			{
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   172
			if(KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for RSoundPlugIn::SetPenClick API")))
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   173
				{
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   174
				iPenClickEnabled=*pData.Bool;
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   175
				}
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   176
			}
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   177
			break;
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   178
		case EWsClickOpKeyClickEnabled:
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   179
			SetReply(iKeyClickEnabled);
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   180
			break;
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   181
		case EWsClickOpPenClickEnabled:
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   182
			SetReply(iPenClickEnabled);
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   183
			break;
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   184
		case EWsClickOpCommandReply:
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   185
			{
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   186
			TInt reply=RSoundPlugIn::ESoundWrongPlugIn;
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   187
			if (iHandler && iThirdUid==ThirdUid() && iThirdUid!=TUid::Null())
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   188
				TRAP(reply, reply = iHandler->CommandReplyL(*pData.Int,(TAny*)(pData.Int+1)));
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   189
			SetReply(reply);
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   190
			}
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   191
			break;
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   192
		default:
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   193
			OwnerPanic(EWservPanicOpcode);
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   194
			break;
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   195
		}
5d03bc08d59c Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   196
	}