bluetoothengine/btui/Ecom/src/BTUIKeyWatcher.cpp
changeset 0 f63038272f30
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bluetoothengine/btui/Ecom/src/BTUIKeyWatcher.cpp	Mon Jan 18 20:28:57 2010 +0200
@@ -0,0 +1,151 @@
+/*
+* Copyright (c) 2007 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:  Listen to CenRep and PubSub Keys
+*
+*/
+
+
+#include <e32base.h>
+#include <btserversdkcrkeys.h>
+#include <btengprivatecrkeys.h>
+#include <bt_subscribe.h>
+#include "BTUIKeyWatcher.h"
+#include "BTUIMainView.h"
+#include "debug.h"
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// NewL
+// ---------------------------------------------------------------------------
+//
+CBTUIKeyWatcher* CBTUIKeyWatcher::NewL( TAny* aCaller, TInt aServiceID  )
+    {
+    CBTUIKeyWatcher* self = new( ELeave ) CBTUIKeyWatcher( aCaller );
+    CleanupStack::PushL( self );
+    self->ConstructL( aServiceID );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// C++ default constructor
+// ---------------------------------------------------------------------------
+//
+CBTUIKeyWatcher::CBTUIKeyWatcher( TAny* aCaller )
+:   iCaller( aCaller )
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// Symbian 2nd-phase constructor
+// ---------------------------------------------------------------------------
+//
+void CBTUIKeyWatcher::ConstructL( TInt aServiceID )
+    {
+    TRACE_FUNC_ENTRY
+       
+    if( aServiceID & KBTUIPHYCountWatcher )
+    	{
+	    TInt err = iPHYCountKey.Attach( KPropertyUidBluetoothCategory, KPropertyKeyBluetoothPHYCount );
+	    if( !err )
+	        {
+	        iPHYCountWatcher = CBTUIActive::NewL( this, KBTUIPHYCountWatcher, CActive::EPriorityStandard );
+	        if( iPHYCountWatcher != NULL )
+	        	{
+	        	iPHYCountKey.Subscribe( iPHYCountWatcher->RequestStatus() );
+	        	iPHYCountWatcher->GoActive();
+	        	}
+	        else
+	        	{
+	        	TRACE_INFO(_L("new iPHYCountWatcher failed"));
+	        	}
+	        }
+	    else
+	    	{
+	    	TRACE_INFO((_L("Attach failed %d"), err))
+	    	}	
+    	}
+    
+    TRACE_FUNC_EXIT
+    }
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CBTUIKeyWatcher::~CBTUIKeyWatcher()
+    {
+    TRACE_FUNC_ENTRY
+   
+    if( iPHYCountKey.Handle() )
+        {
+        iPHYCountKey.Cancel();
+        }
+    if( iPHYCountWatcher )
+    	{
+    	delete iPHYCountWatcher;
+    	iPHYCountWatcher = NULL;
+    	}
+    iPHYCountKey.Close();
+    
+    TRACE_FUNC_EXIT
+    }
+
+
+// ---------------------------------------------------------------------------
+// From class MBTEngActiveObserver.
+// Processes a changed key value.
+// ---------------------------------------------------------------------------
+//
+void CBTUIKeyWatcher::RequestCompletedL( CBTUIActive* aActive, TInt aId, TInt /*aStatus*/ )
+    {
+    switch( aId )
+        {
+        case KBTUIPHYCountWatcher:
+            iPHYCountKey.Subscribe( aActive->RequestStatus() );
+            aActive->GoActive();
+            static_cast<CBTUIMainView*>(iCaller)->UpdateParentView();
+            break;
+        default:
+        	TRACE_INFO((_L("wrong key notification! id=%d"), aId))
+            break;
+        }
+    TRACE_FUNC_EXIT
+    }
+
+// ---------------------------------------------------------------------------
+// From class MBTEngActiveObserver.
+// Handles a leave in RunL/RequestCompletedL by checking that all 
+// the subscriptions are active.
+// ---------------------------------------------------------------------------
+//
+void CBTUIKeyWatcher::HandleError( CBTUIActive* aActive, TInt aId, TInt aError )
+    {
+    TRACE_INFO((_L("status = %d"), aError))
+    (void) aError;
+    if( !aActive->IsActive() )
+        {
+        switch( aId )
+            {
+            case KBTUIPHYCountWatcher:
+                iPHYCountKey.Subscribe( aActive->RequestStatus() );
+                aActive->GoActive();
+                break;
+            default:         
+            	TRACE_INFO((_L("wrong key notification! id=%d"), aId))
+                break;
+            }
+        }
+    }