resourcemgmt/hwrmfmtxwatcherplugin/src/hwrmfmtxaccobserver.cpp
changeset 0 4e1aa6a622a0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/resourcemgmt/hwrmfmtxwatcherplugin/src/hwrmfmtxaccobserver.cpp	Tue Feb 02 00:53:00 2010 +0200
@@ -0,0 +1,210 @@
+/*
+* 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.
+*
+*/
+
+
+// INCLUDE FILES
+#include <accessoryservicesinternalpskeys.h>
+#include "hwrmfmtxaccobserver.h"
+#include "trace.h"
+
+// ============================ LOCAL FUNCTIONS ===============================
+// -----------------------------------------------------------------------------
+// AccessoryConnected()
+// -----------------------------------------------------------------------------
+//
+static TBool AccessoryConnected( TInt aWiredConnStatus )
+    {
+    TBool wiredConnected( ETrue );
+    
+    if( aWiredConnStatus == EAccSrvcsWiredConnUninitialized ||
+        aWiredConnStatus == EAccSrvcsWiredConnDisconnected )
+        {
+        wiredConnected = EFalse;
+        }
+    
+    return wiredConnected;
+    }
+
+// ============================ MEMBER FUNCTIONS ===============================
+// -----------------------------------------------------------------------------
+// CHWRMFmtxAccObserver::NewL()
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CHWRMFmtxAccObserver* CHWRMFmtxAccObserver::NewL( MHWRMFmtxConnObserverCallback& aCallback )
+    {
+    FUNC_LOG;
+    
+    CHWRMFmtxAccObserver* self = new( ELeave ) CHWRMFmtxAccObserver( aCallback );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+    
+// -----------------------------------------------------------------------------
+// CHWRMFmtxAccObserver::~CHWRMFmtxAccObserver()
+// -----------------------------------------------------------------------------
+//
+CHWRMFmtxAccObserver::~CHWRMFmtxAccObserver()
+    {
+    FUNC_LOG;
+    iProperty.Cancel();
+    Cancel();
+    iProperty.Close();
+    }    
+
+// -----------------------------------------------------------------------------
+// CHWRMFmtxAccObserver::StartObservingL
+// -----------------------------------------------------------------------------
+//
+TBool CHWRMFmtxAccObserver::GetStatusL()
+    {
+    FUNC_LOG;
+      
+    TInt wiredConnStatus( EAccSrvcsWiredConnUninitialized );        
+    TInt err( iProperty.Get( KPSUidAccessoryServices,
+                             KAccSrvcsWiredConnection,
+                             wiredConnStatus ) ); 
+
+    LOG_IF_ERROR1( err, "CHWRMFmtxAccObserver::GetStatusL: err=%d", err );
+    
+    User::LeaveIfError( err );
+    
+    return AccessoryConnected( wiredConnStatus );
+    }
+
+// -----------------------------------------------------------------------------
+// CHWRMFmtxAccObserver::StartObservingL
+// -----------------------------------------------------------------------------
+//
+void CHWRMFmtxAccObserver::StartObservingL()
+    {
+    FUNC_LOG;
+    
+    if( IsActive() )
+        {
+        ERROR_LOG( "CHWRMFmtxAccObserver::StartObservingL: already active" );
+        }
+    else
+        {
+        OrderAccessoryNotification();
+        
+        iConnected = GetStatusL(); // only connection change will be notified
+        }        
+    }
+    
+// -----------------------------------------------------------------------------
+// CHWRMFmtxAccObserver::StopObserving
+// -----------------------------------------------------------------------------
+//
+void CHWRMFmtxAccObserver::StopObserving()
+    {
+    FUNC_LOG;
+    
+    Cancel();
+    }
+
+// -----------------------------------------------------------------------------
+// CHWRMFmtxAccObserver::CHWRMFmtxAccObserver()
+// -----------------------------------------------------------------------------
+//
+CHWRMFmtxAccObserver::CHWRMFmtxAccObserver( MHWRMFmtxConnObserverCallback& aCallback ) :
+    CActive( EPriorityStandard ),
+    iCallback( aCallback )
+    {
+    FUNC_LOG;
+    
+    CActiveScheduler::Add( this );
+    }
+    
+// -----------------------------------------------------------------------------
+// CHWRMFmtxAccObserver::ConstructL
+// -----------------------------------------------------------------------------
+//
+void CHWRMFmtxAccObserver::ConstructL()
+    {
+    FUNC_LOG;
+    
+    // Connect to accessory server
+    TInt err = iProperty.Attach( KPSUidAccessoryServices, KAccSrvcsWiredConnection );
+    
+    LOG_IF_ERROR1( err, "CHWRMFmtxAccObserver::ConstructL: RProperty::Attach err=%d", err );
+
+    User::LeaveIfError( err );
+    }
+
+// -----------------------------------------------------------------------------
+// CHWRMFmtxAccObserver::OrderAccessoryNotification()
+// -----------------------------------------------------------------------------
+//
+void CHWRMFmtxAccObserver::OrderAccessoryNotification()
+    {
+    FUNC_LOG;
+    
+    iProperty.Subscribe( iStatus );
+    SetActive();
+    }
+    
+// -----------------------------------------------------------------------------
+// CHWRMFmtxAccObserver::RunL()
+// -----------------------------------------------------------------------------
+//
+void CHWRMFmtxAccObserver::RunL()
+    {
+    FUNC_LOG;
+    
+    TInt status( iStatus.Int() );
+    
+    LOG_IF_ERROR1( status, "CHWRMFmtxAccObserver::RunL: error, status=%d", status );
+    
+    // prevent looping due to immediate completion
+    if ( status != KErrCancel )
+        {
+        OrderAccessoryNotification();    
+        }
+    
+    TInt wiredConnStatus( EAccSrvcsWiredConnUninitialized );
+    TInt err = iProperty.Get( wiredConnStatus );
+    TBool connected( AccessoryConnected( wiredConnStatus ) );
+    
+    INFO_LOG2( "CHWRMFmtxAccObserver::RunL: err=%d, wiredConnStatus=%d", err, wiredConnStatus );
+    
+    if ( err == KErrNotFound || err == KErrNone )
+        {
+        INFO_LOG2( "CHWRMFmtxAccObserver::RunL: connected=%d, iConnected=%d", connected, iConnected );
+        
+        if ( connected != iConnected )
+            {
+            iCallback.HandleConnectionChange( EFmtxWatcherObserverAccessory, connected );    
+            iConnected = connected; // store the status to be used on next completion    
+            }
+        }
+    }
+    
+// -----------------------------------------------------------------------------
+// CHWRMFmtxAccObserver::DoCancel
+// ---------------------------------------------------------------------------
+//
+void CHWRMFmtxAccObserver::DoCancel()
+    {
+    FUNC_LOG;
+
+    iProperty.Cancel();
+    }
+
+//  End of File