--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/appinstaller/AppinstUi/Plugin/CommonUI/Src/CUICancelTimer.cpp	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,144 @@
+/*
+* Copyright (c) 2002-2004 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:   This file contains the implementation of CCUICancelTimer
+*                class member functions.
+*
+*/
+
+
+// INCLUDE FILES
+#include <eikenv.h>
+
+#include "CUICancelTimer.h"
+
+using namespace SwiUI::CommonUI;
+
+const TInt KCancelTries = 4;
+const TInt KCancelFirstTryInterval = 1; // 1us
+const TInt KCancelTryInterval = 500000; // 0,5 sec
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CCUICancelTimer::CCUICancelTimer
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CCUICancelTimer::CCUICancelTimer( MCUICancellable* aCancellable )
+    : CTimer( CActive::EPriorityHigh ),
+      iCancellable( aCancellable ),
+      iTryCount( KCancelTries )
+    {
+    CActiveScheduler::Add( this );    
+    }
+
+// -----------------------------------------------------------------------------
+// CCUICancelTimer::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CCUICancelTimer::ConstructL()
+    {    
+    CTimer::ConstructL(); 
+    iEikEnv = CEikonEnv::Static();    
+    }
+
+// -----------------------------------------------------------------------------
+// CCUICancelTimer::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CCUICancelTimer* CCUICancelTimer::NewL( MCUICancellable* aCancellable )
+    {
+    CCUICancelTimer* self = new( ELeave ) CCUICancelTimer( aCancellable );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;    
+    }
+    
+// Destructor
+EXPORT_C CCUICancelTimer::~CCUICancelTimer()
+    {
+    Cancel();    
+    }
+
+// -----------------------------------------------------------------------------
+// CCUICancelTimer::InstallL
+// Perform installation.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CCUICancelTimer::StartCancelling()
+    {
+    iCancellable->StartedCancellingL();
+    iCancellable->CancelEngine();
+    if ( iCancellable->IsShowingDialog() )
+        {
+        TKeyEvent key;
+        key.iRepeats = 0;
+        key.iCode = EKeyEscape;
+        key.iModifiers = 0;
+        iEikEnv->SimulateKeyEventL( key, EEventKey );
+        }  
+    iTryCount--;
+    TTimeIntervalMicroSeconds32 timeout( KCancelFirstTryInterval );
+    After( timeout );    
+    }
+
+// -----------------------------------------------------------------------------
+// CCUICancelTimer::RunL
+// Called when timer has triggered.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//    
+void CCUICancelTimer::RunL()
+    {
+    if ( --iTryCount >= 0 )
+        {
+        iCancellable->CancelEngine();
+        if ( iCancellable->IsShowingDialog() )
+            {
+            TKeyEvent key;
+            key.iRepeats = 0;
+            key.iCode = EKeyEscape;
+            key.iModifiers = 0;
+            iEikEnv->SimulateKeyEventL( key, EEventKey );
+            }  
+        TTimeIntervalMicroSeconds32 timeout( KCancelTryInterval );
+        After( timeout );        
+        }    
+    else if ( iCancellable->IsShowingDialog() )
+        {
+        // In this case we we are still showing a dialog, even we have tried
+        // to dismiss it. So force the cancel
+        iCancellable->ForceCancel();
+        }    
+    }
+
+// -----------------------------------------------------------------------------
+// CCUICancelTimer::RunError
+// Handles a leave occurring in the request completion event handler RunL().
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+// 
+TInt CCUICancelTimer::RunError( TInt /*aError*/ )
+    {
+    iCancellable->ForceCancel();    
+
+    return KErrNone;    
+    }
+
+//  End of File