--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/windowing/windowserver/nga/SERVER/KEYCLICK.CPP	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,196 @@
+// Copyright (c) 2001-2009 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:
+// Definition of the class that manages the keyclick plugin
+// 
+//
+
+#include "KEYCLICK.H"
+
+#include "server.h"
+#include "W32CLICK.H"
+#include "panics.h"
+#include "inifile.h"
+#include "advancedpointereventhelper.h"
+
+CClickMaker* CClick::iHandler=NULL;
+TBool CClick::iIsChangeable=ETrue;
+TBool CClick::iKeyClickOveride=EFalse;
+TBool CClick::iKeyClickEnabled=ETrue;
+TBool CClick::iPenClickEnabled=ETrue;
+RLibrary CClick::iPlugIn;
+TBool CClick::iIsLoaded=EFalse;
+
+const TUid KClickPlugInDllUid={0x10004F63};
+static _LIT_SECURITY_POLICY_C1(KSecurityPolicy_WriteDeviceData,ECapabilityWriteDeviceData);
+
+
+/*static part*/
+
+void CClick::InitStaticsL()
+	{
+	_LIT(KClickPlugin,"KEYCLICKPLUGIN");
+	TPtrC plugInName;
+	if (WsIniFile->FindVar(KClickPlugin,plugInName))
+		LoadNewLibraryL(plugInName);
+	_LIT(KClickFixed,"KEYCLICKPLUGINFIXED");
+	iIsChangeable=!WsIniFile->FindVar(KClickFixed);
+	}
+
+void CClick::DeleteStatics()
+	{
+	if (iIsLoaded)
+		{
+		delete iHandler;
+		iHandler=NULL;
+		iPlugIn.Close();
+		}
+	}
+
+void CClick::KeyEvent(TEventCode aType,const TKeyEvent& aEvent)
+	{
+	WS_ASSERT_DEBUG(iHandler, EWsPanicClickPluginNotLoaded);
+	if (iKeyClickEnabled && !iKeyClickOveride)
+		{
+		TRAP_IGNORE(iHandler->KeyEvent(aType,aEvent)); // TRAP leaves in case the plugin is badly behaved
+		}
+	}
+
+void CClick::PointerEvent(const TPoint& aScreenPos,const TAdvancedPointerEvent& aEvent)
+	{
+	WS_ASSERT_DEBUG(iHandler, EWsPanicClickPluginNotLoaded);
+	if (iPenClickEnabled)
+		{
+		TAdvancedPointerEvent event;
+		TAdvancedPointerEventHelper::Copy(aEvent,event);
+		event.iParentPosition=aScreenPos;
+		TRAP_IGNORE(iHandler->PointerEvent(event)); // TRAP leaves in case the plugin is badly behaved
+		}
+	}
+
+void CClick::OtherEvent(TInt aType,TAny* aParam)
+	{
+	WS_ASSERT_DEBUG(iHandler, EWsPanicClickPluginNotLoaded);
+	if (aType!=EEventPointer || iPenClickEnabled)
+		TRAP_IGNORE(iHandler->OtherEvent(aType,aParam)); // TRAP leaves in case the plugin is badly behaved
+	}
+
+void CClick::LoadNewLibraryL(const TDesC &aDllName)
+	{
+	WS_ASSERT_DEBUG(iIsChangeable, EWsPanicChangeClickPlugin);
+	const TUidType uidType(KDllUid,KClickPlugInDllUid);
+	RLibrary plugIn;
+	User::LeaveIfError(plugIn.Load(aDllName,uidType));
+	CleanupClosePushL(plugIn);
+	CreateCClickHandler function;
+	CClickMaker* handler;
+	function=(CreateCClickHandler)User::LeaveIfNull((TAny*)plugIn.Lookup(1));	//Can only cast function pointer with C-style casts
+	handler=(*function)();
+	if (handler)
+		{
+		Unload();
+		CleanupStack::Pop(&plugIn);
+		iPlugIn=plugIn;
+		iHandler=handler;
+		iIsLoaded=ETrue;
+		}
+	else
+		CleanupStack::PopAndDestroy(&plugIn);
+	}
+
+/*object part*/
+
+void CClick::ConstructL(const TUid& aUid)
+	{
+	NewObjL();
+	iThirdUid=aUid;
+	}
+
+void CClick::CommandL(TInt aOpcode,const TAny* aCmdData)
+	{
+	TWsClickCmdUnion pData;
+	pData.any=aCmdData;
+	switch(aOpcode)
+		{
+		case EWsClickOpFree:
+			delete this;
+			break;
+		case EWsClickOpIsLoaded:
+			{
+			TUint reply=0;
+			if (IsHandler())
+				reply|=EClickLoaded;
+			if (iIsChangeable)
+				reply|=EClickLoadable;
+			SetReply(reply);
+			}
+			break;
+		case EWsClickOpUnLoad:
+			{
+			if(!KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for RSoundPlugIn::UnLoad API")))
+				{
+				User::Leave(KErrPermissionDenied);
+				}
+			if (iIsChangeable)
+				Unload();
+			else
+				SetReply(KErrNotSupported);
+			}
+			break;
+		case EWsClickOpLoad:
+			{
+			if(!KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for RSoundPlugIn::Load API")))
+				{
+				User::Leave(KErrPermissionDenied);
+				}
+			if (iIsChangeable)
+				LoadNewLibraryL(iWsOwner->BufferTPtr((TText*)(pData.Int+1),*pData.Int));
+			else 
+				SetReply(KErrNotSupported);
+			}
+			break;
+		case EWsClickOpSetKeyClick:
+			{
+			if(KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for RSoundPlugIn::SetKeyClick API")))
+				{
+				iKeyClickEnabled=*pData.Bool;
+				}
+			}
+			break;
+		case EWsClickOpSetPenClick:
+			{
+			if(KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for RSoundPlugIn::SetPenClick API")))
+				{
+				iPenClickEnabled=*pData.Bool;
+				}
+			}
+			break;
+		case EWsClickOpKeyClickEnabled:
+			SetReply(iKeyClickEnabled);
+			break;
+		case EWsClickOpPenClickEnabled:
+			SetReply(iPenClickEnabled);
+			break;
+		case EWsClickOpCommandReply:
+			{
+			TInt reply=RSoundPlugIn::ESoundWrongPlugIn;
+			if (iHandler && iThirdUid==ThirdUid() && iThirdUid!=TUid::Null())
+				TRAP(reply, reply = iHandler->CommandReplyL(*pData.Int,(TAny*)(pData.Int+1)));
+			SetReply(reply);
+			}
+			break;
+		default:
+			OwnerPanic(EWservPanicOpcode);
+			break;
+		}
+	}