homescreenplugins/videochplugin/src/videochpssubscriber.cpp
changeset 0 96612d01cf9f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/homescreenplugins/videochplugin/src/videochpssubscriber.cpp	Mon Jan 18 20:21:12 2010 +0200
@@ -0,0 +1,148 @@
+/*
+* 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 subscriptions from PS*
+*/
+
+
+
+#include "videochpssubscriber.h"
+
+
+// -----------------------------------------------------------------------------
+// CVcxNsCHPSSubscriber::CVcxConnUtilSubscriber()
+// -----------------------------------------------------------------------------
+//
+CVcxNsCHPSSubscriber::CVcxNsCHPSSubscriber( const TUid aUid, 
+                                            const TUint32 aKey, 
+                                            RProperty::TType aType,
+                                            MCHPSObserver* aObserver ) :
+    CActive( EPriorityStandard ), 
+    iUid( aUid ),
+    iKey( aKey ), 
+    iKeyType(aType),
+    iObserver( aObserver )
+    {
+        // NOP
+    }
+ 
+// -----------------------------------------------------------------------------
+// CVcxNsCHPSSubscriber::NewL()
+// -----------------------------------------------------------------------------
+//
+CVcxNsCHPSSubscriber* CVcxNsCHPSSubscriber::NewL( const TUid aUid, 
+                                                  const TUint32 aKey,
+                                                  RProperty::TType aType, 
+                                                  MCHPSObserver* aObserver )
+    {
+    if( aType != RProperty::EInt )
+        {
+        User::Leave( KErrNotSupported );
+        }
+    CVcxNsCHPSSubscriber* self =
+                      new( ELeave ) CVcxNsCHPSSubscriber( aUid, aKey, aType, aObserver );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+ 
+// -----------------------------------------------------------------------------
+// CVcxNsCHPSSubscriber::ConstructL()
+// -----------------------------------------------------------------------------
+//
+void CVcxNsCHPSSubscriber::ConstructL()
+    {
+    iInitialized = EFalse;
+    User::LeaveIfError( iProperty.Attach( iUid, iKey ) );
+    CActiveScheduler::Add( this );    
+    }
+ 
+// -----------------------------------------------------------------------------
+// CVcxNsCHPSSubscriber::~CVcxNsCHPSSubscriber()
+// -----------------------------------------------------------------------------
+//
+CVcxNsCHPSSubscriber::~CVcxNsCHPSSubscriber()
+    {
+    if( IsActive() )
+        {
+        Cancel();
+        }
+    iProperty.Close();
+    }
+
+// -----------------------------------------------------------------------------
+// CVcxNsCHPSSubscriber::Get()
+// -----------------------------------------------------------------------------
+//
+TInt CVcxNsCHPSSubscriber::Get( TInt& aValue )
+    {
+    return iProperty.Get( aValue );
+    }
+
+
+// -----------------------------------------------------------------------------
+// CVcxNsCHPSSubscriber::Start()
+// -----------------------------------------------------------------------------
+//
+void CVcxNsCHPSSubscriber::Start()
+    {
+    if( !IsActive() )
+        {
+        iProperty.Subscribe( iStatus );
+        SetActive();
+        iInitialized = ETrue;
+        }
+    }
+
+
+// -----------------------------------------------------------------------------
+// CVcxNsCHPSSubscriber::DoCancel()
+// -----------------------------------------------------------------------------
+//
+void CVcxNsCHPSSubscriber::DoCancel()
+    {
+    if( IsActive() )
+        {
+        iProperty.Cancel();
+        }
+
+    iInitialized = EFalse;
+    }
+ 
+// -----------------------------------------------------------------------------
+// CVcxNsCHPSSubscriber::RunL()
+// -----------------------------------------------------------------------------
+//
+void CVcxNsCHPSSubscriber::RunL()
+    {
+    // resubscribe before processing new 
+    // value to prevent missing updates
+    iProperty.Subscribe( iStatus );
+    SetActive();
+
+    if( iInitialized )
+        {
+        TInt intValue;
+    
+        if(iKeyType == RProperty::EInt )
+            {
+            if( iProperty.Get( intValue ) == KErrNone && iObserver )
+                {
+                iObserver->ValueChanged( iKey, intValue );
+                }
+            }       
+        }
+    iInitialized = ETrue;
+  }
+// end of file