sl@0: // Copyright (c) 2001-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // Definition of the class that manages the keyclick plugin
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include "KEYCLICK.H"
sl@0: 
sl@0: #include "server.h"
sl@0: #include "W32CLICK.H"
sl@0: #include "panics.h"
sl@0: #include "inifile.h"
sl@0: #include "advancedpointereventhelper.h"
sl@0: 
sl@0: CClickMaker* CClick::iHandler=NULL;
sl@0: TBool CClick::iIsChangeable=ETrue;
sl@0: TBool CClick::iKeyClickOveride=EFalse;
sl@0: TBool CClick::iKeyClickEnabled=ETrue;
sl@0: TBool CClick::iPenClickEnabled=ETrue;
sl@0: RLibrary CClick::iPlugIn;
sl@0: TBool CClick::iIsLoaded=EFalse;
sl@0: 
sl@0: const TUid KClickPlugInDllUid={0x10004F63};
sl@0: static _LIT_SECURITY_POLICY_C1(KSecurityPolicy_WriteDeviceData,ECapabilityWriteDeviceData);
sl@0: 
sl@0: 
sl@0: /*static part*/
sl@0: 
sl@0: void CClick::InitStaticsL()
sl@0: 	{
sl@0: 	_LIT(KClickPlugin,"KEYCLICKPLUGIN");
sl@0: 	TPtrC plugInName;
sl@0: 	if (WsIniFile->FindVar(KClickPlugin,plugInName))
sl@0: 		LoadNewLibraryL(plugInName);
sl@0: 	_LIT(KClickFixed,"KEYCLICKPLUGINFIXED");
sl@0: 	iIsChangeable=!WsIniFile->FindVar(KClickFixed);
sl@0: 	}
sl@0: 
sl@0: void CClick::DeleteStatics()
sl@0: 	{
sl@0: 	if (iIsLoaded)
sl@0: 		{
sl@0: 		delete iHandler;
sl@0: 		iHandler=NULL;
sl@0: 		iPlugIn.Close();
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: void CClick::KeyEvent(TEventCode aType,const TKeyEvent& aEvent)
sl@0: 	{
sl@0: 	WS_ASSERT_DEBUG(iHandler, EWsPanicClickPluginNotLoaded);
sl@0: 	if (iKeyClickEnabled && !iKeyClickOveride)
sl@0: 		{
sl@0: 		TRAP_IGNORE(iHandler->KeyEvent(aType,aEvent)); // TRAP leaves in case the plugin is badly behaved
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: void CClick::PointerEvent(const TPoint& aScreenPos,const TAdvancedPointerEvent& aEvent)
sl@0: 	{
sl@0: 	WS_ASSERT_DEBUG(iHandler, EWsPanicClickPluginNotLoaded);
sl@0: 	if (iPenClickEnabled)
sl@0: 		{
sl@0: 		TAdvancedPointerEvent event;
sl@0: 		TAdvancedPointerEventHelper::Copy(aEvent,event);
sl@0: 		event.iParentPosition=aScreenPos;
sl@0: 		TRAP_IGNORE(iHandler->PointerEvent(event)); // TRAP leaves in case the plugin is badly behaved
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: void CClick::OtherEvent(TInt aType,TAny* aParam)
sl@0: 	{
sl@0: 	WS_ASSERT_DEBUG(iHandler, EWsPanicClickPluginNotLoaded);
sl@0: 	if (aType!=EEventPointer || iPenClickEnabled)
sl@0: 		TRAP_IGNORE(iHandler->OtherEvent(aType,aParam)); // TRAP leaves in case the plugin is badly behaved
sl@0: 	}
sl@0: 
sl@0: void CClick::LoadNewLibraryL(const TDesC &aDllName)
sl@0: 	{
sl@0: 	WS_ASSERT_DEBUG(iIsChangeable, EWsPanicChangeClickPlugin);
sl@0: 	const TUidType uidType(KDllUid,KClickPlugInDllUid);
sl@0: 	RLibrary plugIn;
sl@0: 	User::LeaveIfError(plugIn.Load(aDllName,uidType));
sl@0: 	CleanupClosePushL(plugIn);
sl@0: 	CreateCClickHandler function;
sl@0: 	CClickMaker* handler;
sl@0: 	function=(CreateCClickHandler)User::LeaveIfNull((TAny*)plugIn.Lookup(1));	//Can only cast function pointer with C-style casts
sl@0: 	handler=(*function)();
sl@0: 	if (handler)
sl@0: 		{
sl@0: 		Unload();
sl@0: 		CleanupStack::Pop(&plugIn);
sl@0: 		iPlugIn=plugIn;
sl@0: 		iHandler=handler;
sl@0: 		iIsLoaded=ETrue;
sl@0: 		}
sl@0: 	else
sl@0: 		CleanupStack::PopAndDestroy(&plugIn);
sl@0: 	}
sl@0: 
sl@0: /*object part*/
sl@0: 
sl@0: void CClick::ConstructL(const TUid& aUid)
sl@0: 	{
sl@0: 	NewObjL();
sl@0: 	iThirdUid=aUid;
sl@0: 	}
sl@0: 
sl@0: void CClick::CommandL(TInt aOpcode,const TAny* aCmdData)
sl@0: 	{
sl@0: 	TWsClickCmdUnion pData;
sl@0: 	pData.any=aCmdData;
sl@0: 	switch(aOpcode)
sl@0: 		{
sl@0: 		case EWsClickOpFree:
sl@0: 			delete this;
sl@0: 			break;
sl@0: 		case EWsClickOpIsLoaded:
sl@0: 			{
sl@0: 			TUint reply=0;
sl@0: 			if (IsHandler())
sl@0: 				reply|=EClickLoaded;
sl@0: 			if (iIsChangeable)
sl@0: 				reply|=EClickLoadable;
sl@0: 			SetReply(reply);
sl@0: 			}
sl@0: 			break;
sl@0: 		case EWsClickOpUnLoad:
sl@0: 			{
sl@0: 			if(!KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for RSoundPlugIn::UnLoad API")))
sl@0: 				{
sl@0: 				User::Leave(KErrPermissionDenied);
sl@0: 				}
sl@0: 			if (iIsChangeable)
sl@0: 				Unload();
sl@0: 			else
sl@0: 				SetReply(KErrNotSupported);
sl@0: 			}
sl@0: 			break;
sl@0: 		case EWsClickOpLoad:
sl@0: 			{
sl@0: 			if(!KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for RSoundPlugIn::Load API")))
sl@0: 				{
sl@0: 				User::Leave(KErrPermissionDenied);
sl@0: 				}
sl@0: 			if (iIsChangeable)
sl@0: 				LoadNewLibraryL(iWsOwner->BufferTPtr((TText*)(pData.Int+1),*pData.Int));
sl@0: 			else 
sl@0: 				SetReply(KErrNotSupported);
sl@0: 			}
sl@0: 			break;
sl@0: 		case EWsClickOpSetKeyClick:
sl@0: 			{
sl@0: 			if(KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for RSoundPlugIn::SetKeyClick API")))
sl@0: 				{
sl@0: 				iKeyClickEnabled=*pData.Bool;
sl@0: 				}
sl@0: 			}
sl@0: 			break;
sl@0: 		case EWsClickOpSetPenClick:
sl@0: 			{
sl@0: 			if(KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for RSoundPlugIn::SetPenClick API")))
sl@0: 				{
sl@0: 				iPenClickEnabled=*pData.Bool;
sl@0: 				}
sl@0: 			}
sl@0: 			break;
sl@0: 		case EWsClickOpKeyClickEnabled:
sl@0: 			SetReply(iKeyClickEnabled);
sl@0: 			break;
sl@0: 		case EWsClickOpPenClickEnabled:
sl@0: 			SetReply(iPenClickEnabled);
sl@0: 			break;
sl@0: 		case EWsClickOpCommandReply:
sl@0: 			{
sl@0: 			TInt reply=RSoundPlugIn::ESoundWrongPlugIn;
sl@0: 			if (iHandler && iThirdUid==ThirdUid() && iThirdUid!=TUid::Null())
sl@0: 				TRAP(reply, reply = iHandler->CommandReplyL(*pData.Int,(TAny*)(pData.Int+1)));
sl@0: 			SetReply(reply);
sl@0: 			}
sl@0: 			break;
sl@0: 		default:
sl@0: 			OwnerPanic(EWservPanicOpcode);
sl@0: 			break;
sl@0: 		}
sl@0: 	}