accessoryservices/accessoryserver/src/ChargerContext/AccSrvPSIntPropertyWatch.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/accessoryservices/accessoryserver/src/ChargerContext/AccSrvPSIntPropertyWatch.cpp Tue Feb 02 00:53:00 2010 +0200
@@ -0,0 +1,212 @@
+/*
+* Copyright (c) 2008-2008 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: A class to watch changes of a integer property.
+*
+*/
+
+
+
+#include <e32base.h>
+#include <e32def.h>
+
+
+#include "AccSrvPSIntPropertyWatch.h"
+#include "acc_debug.h"
+
+
+// ======== LOCAL FUNCTIONS ========
+
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------
+// Symbian two-phased constructor
+// ---------------------------------------------------------
+//
+CAccSrvPSIntPropertyWatch* CAccSrvPSIntPropertyWatch::NewL(
+ MAccSrvPSIntPropertyObserver* aObserver,
+ TUid aCategory,
+ TInt aKey,
+ TOwnerType aType )
+ {
+ COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::NewL()" );
+ CAccSrvPSIntPropertyWatch* self = new ( ELeave ) CAccSrvPSIntPropertyWatch();
+ CleanupStack::PushL( self );
+ self->ConstructL( aObserver, aCategory, aKey, aType );
+ CleanupStack::Pop( self );
+ COM_TRACE_1( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::NewL - return %p", self );
+ return self;
+ }
+
+
+// ---------------------------------------------------------------------------
+// Symbian two-phased constructor
+// ---------------------------------------------------------------------------
+//
+CAccSrvPSIntPropertyWatch* CAccSrvPSIntPropertyWatch::NewLC(
+ MAccSrvPSIntPropertyObserver* aObserver,
+ TUid aCategory,
+ TInt aKey,
+ TOwnerType aType )
+ {
+ COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::NewLC()" );
+ CAccSrvPSIntPropertyWatch* self = new( ELeave ) CAccSrvPSIntPropertyWatch;
+ CleanupStack::PushL( self );
+ self->ConstructL( aObserver, aCategory, aKey, aType );
+ COM_TRACE_1( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::NewLC - return %p", self );
+ return self;
+ }
+
+
+// ---------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------
+//
+CAccSrvPSIntPropertyWatch::~CAccSrvPSIntPropertyWatch()
+ {
+ COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::~CAccSrvPSIntPropertyWatch()" );
+ Cancel();
+ iProperty.Close();
+ COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::~CAccSrvPSIntPropertyWatch" );
+ }
+
+// ---------------------------------------------------------
+// SubscribeNotification
+// ---------------------------------------------------------
+//
+void CAccSrvPSIntPropertyWatch::Watch()
+ {
+ COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::Watch()" );
+ iProperty.Subscribe(iStatus);
+ SetActive();
+ COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::Watch - return void" );
+ return;
+ }
+
+
+// ---------------------------------------------------------
+// Get current value.
+// ---------------------------------------------------------
+//
+TInt CAccSrvPSIntPropertyWatch::GetCurrentValue( TInt& aValue)
+ {
+ COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::GetCurrentValue()" );
+ TInt value = 0;
+ TInt error( iProperty.Get( value ) );
+ if ( KErrNone == error )
+ {
+ // use new value ...
+ COM_TRACE_1( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::GetCurrentValue - value 0x%x", value );
+ aValue = value;
+ }
+ else if ( KErrNotFound == error )
+ {
+ // property deleted, do necessary actions here...
+ iObserver->PSPropertyDeleted( iCategory, iKey );
+ }
+ COM_TRACE_1( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::GetCurrentValue - return aError %d", error );
+ return error;
+ }
+
+
+// ---------------------------------------------------------
+// From class CActive.
+// DoCancel
+// ---------------------------------------------------------
+//
+void CAccSrvPSIntPropertyWatch::DoCancel()
+ {
+ COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::DoCancel()" );
+ iProperty.Cancel();
+ COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::DoCancel - return void" );
+ }
+
+
+// ---------------------------------------------------------
+// C++ constructor
+// ---------------------------------------------------------
+//
+CAccSrvPSIntPropertyWatch::CAccSrvPSIntPropertyWatch()
+ :CActive ( EPriority )
+ {
+ COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::CAccSrvPSIntPropertyWatch()" );
+ COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::CAccSrvPSIntPropertyWatch - return" );
+ }
+
+
+// ---------------------------------------------------------
+// ConstructL
+// ---------------------------------------------------------
+//
+void CAccSrvPSIntPropertyWatch::ConstructL(
+ MAccSrvPSIntPropertyObserver* aObserver,
+ TUid aCategory,
+ TInt aKey,
+ TOwnerType aType )
+ {
+ COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::ConstructL()" );
+ iObserver = aObserver;
+ iCategory = aCategory;
+ iKey = aKey;
+ User::LeaveIfError( iProperty.Attach(iCategory,iKey, aType ) );
+ CActiveScheduler::Add(this);
+ COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::ConstructL - return void" );
+ return;
+ }
+
+// ---------------------------------------------------------
+// From class CActive.
+// RunL
+// ---------------------------------------------------------
+//
+void CAccSrvPSIntPropertyWatch::RunL()
+ {
+ COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::RunL()" );
+
+ // resubscribe before processing new value to prevent missing updates
+ iProperty.Subscribe(iStatus);
+ SetActive();
+ // property updated, get new value
+ TInt value;
+ if ( iProperty.Get( value ) == KErrNotFound )
+ {
+ // property deleted, do necessary actions here...
+ iObserver->PSPropertyDeleted( iCategory, iKey );
+ }
+ else
+ {
+ // use new value ...
+ iObserver->PSPropertyChanged( iCategory, iKey, value );
+ }
+ COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::RunL - return void" );
+ }
+
+
+// ---------------------------------------------------------
+// From class CActive.
+// RunL
+// ---------------------------------------------------------
+//
+TInt CAccSrvPSIntPropertyWatch::RunError( TInt aError )
+ {
+ COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::RunError()" );
+ // Avoid Panic in CActiveScheduler
+ aError = KErrNone;
+ COM_TRACE_1( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::RunError - return aError %d", aError );
+ return aError;
+ }
+
+
+// ======== GLOBAL FUNCTIONS ========
+