--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/emailuis/emailui/inc/FreestyleEmailUiPropertySubscriber.h Wed Sep 01 12:28:57 2010 +0100
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2009 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: Used for observing property changes and notifying listeners.
+ *
+ */
+
+#ifndef __FREESTYLEEMAILUIPROPERTYSUBSCRIBER_H__
+#define __FREESTYLEEMAILUIPROPERTYSUBSCRIBER_H__
+
+#include <e32base.h> // For CActive, link against: euser.lib
+#include <e32property.h> // Observer for property change events.
+
+/**
+ * Observer interface for property changes.
+ */
+class MFreestyleEmailUiPropertyChangedObserver
+ {
+public:
+
+ virtual void PropertyChangedL( TInt aValue ) = 0;
+ };
+
+
+/**
+ * Subcribes property from P&S and listens to property changes.
+ */
+NONSHARABLE_CLASS( CFreestyleEmailUiPropertySubscriber ) : public CActive
+ {
+public: // Construction and destruction.
+
+ /**
+ * Two-phased constructor.
+ * @param aUid P&S property category.
+ * @param aKey P&S property key.
+ * @param aObserver The given property changed observer.
+ */
+ static CFreestyleEmailUiPropertySubscriber* NewL(
+ const TUid aUid,
+ const TUint32 aKey,
+ MFreestyleEmailUiPropertyChangedObserver& aObserver );
+
+ /**
+ * Two-phased constructor.
+ * @param aUid P&S property category.
+ * @param aKey P&S property key.
+ * @param aObserver The given property changed observer.
+ */
+ static CFreestyleEmailUiPropertySubscriber* NewLC(
+ const TUid aUid,
+ const TUint32 aKey,
+ MFreestyleEmailUiPropertyChangedObserver& aObserver );
+
+ /**
+ * Cancels and destroys the instance.
+ */
+ ~CFreestyleEmailUiPropertySubscriber();
+
+
+private: // Construction.
+
+ /**
+ * C++ constructor.
+ * @param aObserver The given property changed observer.
+ */
+ CFreestyleEmailUiPropertySubscriber(
+ MFreestyleEmailUiPropertyChangedObserver& aObserver );
+
+ /**
+ * Second phase constructor.
+ * @param aUid P&S property category.
+ * @param aKey P&S property key.
+ */
+ void ConstructL( const TUid aUid, const TUint32 aKey );
+
+
+private: // From CActive.
+
+ /**
+ * Handles completion.
+ */
+ void RunL();
+
+ /**
+ * How to cancel me.
+ */
+ void DoCancel();
+
+
+private:
+
+ // The observer for property changes.
+ MFreestyleEmailUiPropertyChangedObserver& iPropertyChangeObserver;
+
+ // The property to listen to.
+ RProperty iProperty;
+ };
+
+
+#endif /* __FREESTYLEEMAILUIPROPERTYSUBSCRIBER_H__ */
+
+// End of file.
+