1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/graphics/windowing/windowserver/nga/SERVER/KEYCLICK.CPP Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,196 @@
1.4 +// Copyright (c) 2001-2009 Nokia Corporation and/or its subsidiary(-ies).
1.5 +// All rights reserved.
1.6 +// This component and the accompanying materials are made available
1.7 +// under the terms of "Eclipse Public License v1.0"
1.8 +// which accompanies this distribution, and is available
1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.10 +//
1.11 +// Initial Contributors:
1.12 +// Nokia Corporation - initial contribution.
1.13 +//
1.14 +// Contributors:
1.15 +//
1.16 +// Description:
1.17 +// Definition of the class that manages the keyclick plugin
1.18 +//
1.19 +//
1.20 +
1.21 +#include "KEYCLICK.H"
1.22 +
1.23 +#include "server.h"
1.24 +#include "W32CLICK.H"
1.25 +#include "panics.h"
1.26 +#include "inifile.h"
1.27 +#include "advancedpointereventhelper.h"
1.28 +
1.29 +CClickMaker* CClick::iHandler=NULL;
1.30 +TBool CClick::iIsChangeable=ETrue;
1.31 +TBool CClick::iKeyClickOveride=EFalse;
1.32 +TBool CClick::iKeyClickEnabled=ETrue;
1.33 +TBool CClick::iPenClickEnabled=ETrue;
1.34 +RLibrary CClick::iPlugIn;
1.35 +TBool CClick::iIsLoaded=EFalse;
1.36 +
1.37 +const TUid KClickPlugInDllUid={0x10004F63};
1.38 +static _LIT_SECURITY_POLICY_C1(KSecurityPolicy_WriteDeviceData,ECapabilityWriteDeviceData);
1.39 +
1.40 +
1.41 +/*static part*/
1.42 +
1.43 +void CClick::InitStaticsL()
1.44 + {
1.45 + _LIT(KClickPlugin,"KEYCLICKPLUGIN");
1.46 + TPtrC plugInName;
1.47 + if (WsIniFile->FindVar(KClickPlugin,plugInName))
1.48 + LoadNewLibraryL(plugInName);
1.49 + _LIT(KClickFixed,"KEYCLICKPLUGINFIXED");
1.50 + iIsChangeable=!WsIniFile->FindVar(KClickFixed);
1.51 + }
1.52 +
1.53 +void CClick::DeleteStatics()
1.54 + {
1.55 + if (iIsLoaded)
1.56 + {
1.57 + delete iHandler;
1.58 + iHandler=NULL;
1.59 + iPlugIn.Close();
1.60 + }
1.61 + }
1.62 +
1.63 +void CClick::KeyEvent(TEventCode aType,const TKeyEvent& aEvent)
1.64 + {
1.65 + WS_ASSERT_DEBUG(iHandler, EWsPanicClickPluginNotLoaded);
1.66 + if (iKeyClickEnabled && !iKeyClickOveride)
1.67 + {
1.68 + TRAP_IGNORE(iHandler->KeyEvent(aType,aEvent)); // TRAP leaves in case the plugin is badly behaved
1.69 + }
1.70 + }
1.71 +
1.72 +void CClick::PointerEvent(const TPoint& aScreenPos,const TAdvancedPointerEvent& aEvent)
1.73 + {
1.74 + WS_ASSERT_DEBUG(iHandler, EWsPanicClickPluginNotLoaded);
1.75 + if (iPenClickEnabled)
1.76 + {
1.77 + TAdvancedPointerEvent event;
1.78 + TAdvancedPointerEventHelper::Copy(aEvent,event);
1.79 + event.iParentPosition=aScreenPos;
1.80 + TRAP_IGNORE(iHandler->PointerEvent(event)); // TRAP leaves in case the plugin is badly behaved
1.81 + }
1.82 + }
1.83 +
1.84 +void CClick::OtherEvent(TInt aType,TAny* aParam)
1.85 + {
1.86 + WS_ASSERT_DEBUG(iHandler, EWsPanicClickPluginNotLoaded);
1.87 + if (aType!=EEventPointer || iPenClickEnabled)
1.88 + TRAP_IGNORE(iHandler->OtherEvent(aType,aParam)); // TRAP leaves in case the plugin is badly behaved
1.89 + }
1.90 +
1.91 +void CClick::LoadNewLibraryL(const TDesC &aDllName)
1.92 + {
1.93 + WS_ASSERT_DEBUG(iIsChangeable, EWsPanicChangeClickPlugin);
1.94 + const TUidType uidType(KDllUid,KClickPlugInDllUid);
1.95 + RLibrary plugIn;
1.96 + User::LeaveIfError(plugIn.Load(aDllName,uidType));
1.97 + CleanupClosePushL(plugIn);
1.98 + CreateCClickHandler function;
1.99 + CClickMaker* handler;
1.100 + function=(CreateCClickHandler)User::LeaveIfNull((TAny*)plugIn.Lookup(1)); //Can only cast function pointer with C-style casts
1.101 + handler=(*function)();
1.102 + if (handler)
1.103 + {
1.104 + Unload();
1.105 + CleanupStack::Pop(&plugIn);
1.106 + iPlugIn=plugIn;
1.107 + iHandler=handler;
1.108 + iIsLoaded=ETrue;
1.109 + }
1.110 + else
1.111 + CleanupStack::PopAndDestroy(&plugIn);
1.112 + }
1.113 +
1.114 +/*object part*/
1.115 +
1.116 +void CClick::ConstructL(const TUid& aUid)
1.117 + {
1.118 + NewObjL();
1.119 + iThirdUid=aUid;
1.120 + }
1.121 +
1.122 +void CClick::CommandL(TInt aOpcode,const TAny* aCmdData)
1.123 + {
1.124 + TWsClickCmdUnion pData;
1.125 + pData.any=aCmdData;
1.126 + switch(aOpcode)
1.127 + {
1.128 + case EWsClickOpFree:
1.129 + delete this;
1.130 + break;
1.131 + case EWsClickOpIsLoaded:
1.132 + {
1.133 + TUint reply=0;
1.134 + if (IsHandler())
1.135 + reply|=EClickLoaded;
1.136 + if (iIsChangeable)
1.137 + reply|=EClickLoadable;
1.138 + SetReply(reply);
1.139 + }
1.140 + break;
1.141 + case EWsClickOpUnLoad:
1.142 + {
1.143 + if(!KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for RSoundPlugIn::UnLoad API")))
1.144 + {
1.145 + User::Leave(KErrPermissionDenied);
1.146 + }
1.147 + if (iIsChangeable)
1.148 + Unload();
1.149 + else
1.150 + SetReply(KErrNotSupported);
1.151 + }
1.152 + break;
1.153 + case EWsClickOpLoad:
1.154 + {
1.155 + if(!KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for RSoundPlugIn::Load API")))
1.156 + {
1.157 + User::Leave(KErrPermissionDenied);
1.158 + }
1.159 + if (iIsChangeable)
1.160 + LoadNewLibraryL(iWsOwner->BufferTPtr((TText*)(pData.Int+1),*pData.Int));
1.161 + else
1.162 + SetReply(KErrNotSupported);
1.163 + }
1.164 + break;
1.165 + case EWsClickOpSetKeyClick:
1.166 + {
1.167 + if(KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for RSoundPlugIn::SetKeyClick API")))
1.168 + {
1.169 + iKeyClickEnabled=*pData.Bool;
1.170 + }
1.171 + }
1.172 + break;
1.173 + case EWsClickOpSetPenClick:
1.174 + {
1.175 + if(KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for RSoundPlugIn::SetPenClick API")))
1.176 + {
1.177 + iPenClickEnabled=*pData.Bool;
1.178 + }
1.179 + }
1.180 + break;
1.181 + case EWsClickOpKeyClickEnabled:
1.182 + SetReply(iKeyClickEnabled);
1.183 + break;
1.184 + case EWsClickOpPenClickEnabled:
1.185 + SetReply(iPenClickEnabled);
1.186 + break;
1.187 + case EWsClickOpCommandReply:
1.188 + {
1.189 + TInt reply=RSoundPlugIn::ESoundWrongPlugIn;
1.190 + if (iHandler && iThirdUid==ThirdUid() && iThirdUid!=TUid::Null())
1.191 + TRAP(reply, reply = iHandler->CommandReplyL(*pData.Int,(TAny*)(pData.Int+1)));
1.192 + SetReply(reply);
1.193 + }
1.194 + break;
1.195 + default:
1.196 + OwnerPanic(EWservPanicOpcode);
1.197 + break;
1.198 + }
1.199 + }