resourcemgmt/hwrmfmtxwatcherplugin/inc/hwrmfmtxaccobserver.h
changeset 0 4e1aa6a622a0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/resourcemgmt/hwrmfmtxwatcherplugin/inc/hwrmfmtxaccobserver.h	Tue Feb 02 00:53:00 2010 +0200
@@ -0,0 +1,107 @@
+/*
+* Copyright (c) 2008 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:  Accessory observer implementation for fmtx watcher plugin.
+*
+*/
+
+
+#ifndef HWRMFMTXACCOBSERVER_H
+#define HWRMFMTXACCOBSERVER_H
+
+//  INCLUDES
+#include <e32base.h>
+#include <e32property.h>
+#include "hwrmfmtxconnobserver.h"
+
+// CLASS DECLARATIONS
+/**
+* Active object for obtaining notification of changes in Accessory connections.
+*
+* @since S60 3.2
+* @lib fmtxwatcherplugin.lib
+*/
+NONSHARABLE_CLASS(CHWRMFmtxAccObserver) : public CActive, public MHWRMFmtxConnObserver
+	{
+public: // From MFmtxConnObserver
+
+    /**
+    * This is a two-phase constructor method that is used to create a new
+    * instance for listening to the changes in Accessory connections.
+    *
+    * @param aObserver A reference to an observer instance.
+    * @return A pointer to a new instance of the CAccObserver class.
+    *
+    * @leave One of the Symbian OS error codes.
+    */
+    static CHWRMFmtxAccObserver* NewL( MHWRMFmtxConnObserverCallback& aObserver );
+    
+    /**
+    * Destructor.
+    */
+    ~CHWRMFmtxAccObserver();
+    
+    
+    // form MHWRMFmtxConnObserver
+    TBool GetStatusL();
+    void StartObservingL();
+    void StopObserving();
+	
+private:
+
+    /**
+    * C++ default constructor.
+    *
+    * @param aObserver A reference to an observer instance.
+    */
+    CHWRMFmtxAccObserver( MHWRMFmtxConnObserverCallback& aObserver );
+    
+    /**
+    * By default Symbian OS constructor is private.
+    */
+    void ConstructL();
+    
+    /**
+    * Orders notification for wired accessory connection status change.
+    */
+    void OrderAccessoryNotification();
+
+protected:
+    
+    // from CActive
+    void RunL();
+    void DoCancel();
+
+private:
+
+    /**
+    * Publish&Subscribe key session.     
+    */
+    RProperty iProperty;
+    
+    /**
+    * Response callback pointer.
+    */    
+    MHWRMFmtxConnObserverCallback& iCallback;
+    
+    /**
+    * Connection status.
+    * Used for filtering out audio routing change notifications.
+    */ 
+    TBool iConnected;
+	};
+
+
+#endif // HWRMFMTXACCOBSERVER_H
+            
+// End of File