TB10.1 Example Applications: examples/Graphics/WS/transparent/eventhandler.cpp Source File

00001 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
-00002 // All rights reserved.
-00003 // This component and the accompanying materials are made available
-00004 // under the terms of "Eclipse Public License v1.0"
-00005 // which accompanies this distribution, and is available
-00006 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
-00007 //
-00008 // Initial Contributors:
-00009 // Nokia Corporation - initial contribution.
-00010 //
-00011 // Contributors:
-00012 //
-00013 // Description:
-00014 // This encapsulates both issuing a request for getting pointer events to an asynchronous service provider
-00015 // and handling the completed requests.
-00016 //
-00017 
-00018 
-00019 
-00024 #include "transparent.h"
-00025 
-00030 CEventHandler* CEventHandler::NewL(RWsSession& aWs)
-00031         {
-00032         CEventHandler* eventHandler = new(ELeave) CEventHandler(aWs);
-00033         CleanupStack::PushL(eventHandler);
-00034         eventHandler->ConstructL();
-00035         CleanupStack::Pop(eventHandler);
-00036         return eventHandler;
-00037         }
-00038 
-00043 CEventHandler::CEventHandler(RWsSession& aWs) : CActive(CActive::EPriorityStandard),iWs(aWs)
-00044         {
-00045         }
-00046 
-00050 void CEventHandler ::ConstructL()
-00051         {
-00052         CActiveScheduler::Add(this);
-00053         }
-00054 
-00058 CEventHandler ::~CEventHandler ()
-00059         {
-00060         Cancel();
-00061         }
-00062 
-00067 void CEventHandler ::DoCancel()
-00068         {
-00069         iWs.EventReadyCancel();
-00070         }
-00071 
-00076 void CEventHandler::RunL()
-00077         {
-00078         iWs.GetEvent(iWsEvent);
-00079         TInt eventType = iWsEvent.Type();
-00080 
-00081         // Take action for the event that occurred
-00082         switch (eventType)
-00083                 {
-00084                 // Events global within window group
-00085                 case EEventNull:
-00086                         break;
-00087                 case EEventPointer:
-00088                         {
-00089                         TPointerEvent& pointerEvent = *iWsEvent.Pointer();
-00090                         HandlePointerEvent(pointerEvent);
-00091                         }
-00092                         break;
-00093                 }
-00094         // Maintain outstanding request
-00095         IssueRequest();
-00096         }
-00097 
-00103 void CEventHandler::HandlePointerEvent(TPointerEvent& aPointerEvent)
-00104         {
-00105         switch (aPointerEvent.iType)
-00106                 {
-00107                 case TPointerEvent::EButton1Down:
-00108                         {
-00109                         InfoMessage(KEventButton1Pressed);
-00110                         break;
-00111                         }
-00112                         case TPointerEvent::EButton2Down:
-00113                         {
-00114                         InfoMessage(KEventButton2Pressed);
-00115                         break;
-00116                         }
-00117                         case TPointerEvent::EButton3Down:
-00118                         {
-00119                         InfoMessage(KEventButton3Pressed);
-00120                         break;
-00121                         }
-00122                         default:
-00123                         {
-00124                         break;
-00125                         }
-00126                 }
-00127         }
-00128 
-00133 void CEventHandler::IssueRequest()
-00134         {
-00135         if(!IsActive())
-00136                 {
-00137                 iWs.EventReady(&iStatus);
-00138                 SetActive();
-00139                 }
-00140         }
-00141 
-00146 void CEventHandler::InfoMessage(const TDesC& aMsg)
-00147         {
-00148         CEikonEnv *obj = CEikonEnv::Static();
-00149         obj->InfoMsg(aMsg);
-00150         }
-00151 
-