--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraapp/generic/inc/cameracontroller/mcamcameraobserver.h Thu Jan 07 16:18:56 2010 +0200
@@ -0,0 +1,80 @@
+/*
+* 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: Camera observer interface.
+*
+*/
+
+
+#ifndef CAM_CAMERAOBSERVER_H
+#define CAM_CAMERAOBSERVER_H
+
+
+#include "camcameraevents.h"
+
+
+/**
+ * MCamCameraObserver mixin.
+ *
+ */
+class MCamCameraObserver
+ {
+ public:
+
+ /**
+ * Handle camera event.
+ *
+ * @param aStatus Status code describing the event status.
+ * @param aEventId Identifier for the event.
+ * @param aEventData Event associated data. If such data is provided with the event,
+ * it is mentioned in the documentation of particular event id.
+ * Ownership not transferred to observer.
+ */
+ virtual void HandleCameraEventL( TInt aStatus,
+ TCamCameraEventId aEventId,
+ TAny* aEventData = NULL ) = 0;
+ };
+
+
+/**
+* MCamCameraObservable mixin.
+*/
+class MCamCameraObservable
+ {
+ public:
+
+ /**
+ * Attach a new observer.
+ * @param aObserver Observer to attach. If given observer is already attached,
+ * duplicate is not added and no error is reported.
+ * @param aInterest Observer event interest info.
+ * TCamCameraEventClassId values ORed.
+ * If observer needs to change the interest info, it should
+ * first detach itself and then attach with new info.
+ */
+ virtual void AttachObserverL( const MCamCameraObserver* aObserver,
+ const TUint& aInterest ) = 0;
+
+
+ /**
+ * Detach an observer.
+ * @param aObserver Observer to detach. If given observer is not found
+ * among attached observers, such an is simply ignored.
+ */
+ virtual void DetachObserver( const MCamCameraObserver* aObserver ) = 0;
+ };
+
+
+#endif // M_CAM_ENGINEOBSERVER_H
+
+// end of file