videoconnutility/connutility/src/vcxconnutilsubscriber.cpp
changeset 0 822a42b6c3f1
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/videoconnutility/connutility/src/vcxconnutilsubscriber.cpp	Thu Dec 17 09:14:38 2009 +0200
@@ -0,0 +1,143 @@
+/*
+* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:    Class to handle subscribtions from PS*
+*/
+
+
+
+#include "vcxconnutilsubscriber.h"
+#include "vcxconnutilpubsubobserver.h"
+
+
+// -----------------------------------------------------------------------------
+// CVcxConnUtilSubscriber::CVcxConnUtilSubscriber()
+// -----------------------------------------------------------------------------
+//
+CVcxConnUtilSubscriber::CVcxConnUtilSubscriber( const TUid aUid, 
+                                                const TUint32 aKey, 
+                                                RProperty::TType aType,
+                                                MConnUtilPubsubObserver* aObserver ) :
+    CActive( EPriorityStandard ), 
+    iUid( aUid ),
+    iKey( aKey ), 
+    iKeyType(aType), 
+    iObserver( aObserver )
+    {
+        // NOP
+    }
+ 
+// -----------------------------------------------------------------------------
+// CVcxConnUtilSubscriber::NewL()
+// -----------------------------------------------------------------------------
+//
+CVcxConnUtilSubscriber* CVcxConnUtilSubscriber::NewL( const TUid aUid, 
+                                                      const TUint32 aKey,
+                                                      RProperty::TType aType, 
+                                                      MConnUtilPubsubObserver* aObserver )
+    {
+    CVcxConnUtilSubscriber* self =
+                      new( ELeave ) CVcxConnUtilSubscriber( aUid, aKey, aType, aObserver );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+ 
+// -----------------------------------------------------------------------------
+// CVcxConnUtilSubscriber::ConstructL()
+// -----------------------------------------------------------------------------
+//
+void CVcxConnUtilSubscriber::ConstructL()
+    {
+    iInitialized = EFalse;
+    User::LeaveIfError( iProperty.Attach( iUid, iKey ) );
+    CActiveScheduler::Add( this );    
+    }
+ 
+// -----------------------------------------------------------------------------
+// CVcxConnUtilSubscriber::~CVcxConnUtilSubscriber()
+// -----------------------------------------------------------------------------
+//
+CVcxConnUtilSubscriber::~CVcxConnUtilSubscriber()
+    {
+    if( IsActive() )
+        {
+        Cancel();
+        }
+    iProperty.Close();
+    
+    }
+
+// -----------------------------------------------------------------------------
+// CVcxConnUtilSubscriber::Property()
+// -----------------------------------------------------------------------------
+//
+RProperty& CVcxConnUtilSubscriber::Property()
+    {
+    return iProperty;
+    }
+  
+// -----------------------------------------------------------------------------
+// CVcxConnUtilSubscriber::Start()
+// -----------------------------------------------------------------------------
+//
+void CVcxConnUtilSubscriber::Start()
+    {
+    if( !IsActive() )
+        {
+        iProperty.Subscribe( iStatus );
+        SetActive();
+        iInitialized = ETrue;
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CVcxConnUtilSubscriber::DoCancel()
+// -----------------------------------------------------------------------------
+//
+void CVcxConnUtilSubscriber::DoCancel()
+    {
+    if( IsActive() )
+        {
+        iProperty.Cancel();
+        }   
+    iInitialized = EFalse;
+    }
+ 
+// -----------------------------------------------------------------------------
+// CVcxConnUtilSubscriber::RunL()
+// -----------------------------------------------------------------------------
+//
+void CVcxConnUtilSubscriber::RunL()
+    {
+    // resubscribe before processing new 
+    // value to prevent missing updates
+    iProperty.Subscribe( iStatus );
+    SetActive();
+
+    if( iInitialized )
+        {           
+        if(iKeyType == RProperty::EInt )
+            {
+            TInt intValue;
+            // int type changed
+            if( iProperty.Get( intValue ) == KErrNone && iObserver )
+                {                
+                TRAP_IGNORE( iObserver->ValueChangedL( iKey, intValue ) );
+                }
+            }
+        }
+    iInitialized = ETrue;
+  }
+// end of file