--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/contextengine/plugins/locationplugin/inc/locationcontextplugin.h Mon Jan 18 20:34:07 2010 +0200
@@ -0,0 +1,135 @@
+/*
+* Copyright (c) 2007-2009 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 Context Engine Plug-in to get location context information.
+*
+*/
+
+
+#ifndef CLOCATIONCONTEXTPLUGIN_H
+#define CLOCATIONCONTEXTPLUGIN_H
+
+#include <e32def.h>
+
+#include "contextplugin.h"
+#include "rlocationtrail.h"
+#include "rlocationobjectmanipulator.h"
+#include "locationdatatype.h"
+
+// forward declarations
+class TLocality;
+class CMdESession;
+class CHarvesterData;
+class CMdEProperty;
+
+/**
+* This class implements the context plugin interface for GPS
+* location information.
+*
+*/
+class CLocationContextPlugin : public CContextPlugin
+ {
+public:
+
+ /**
+ * Creates and constructs a new instance of CLocationContextPlugin.
+ *
+ * @return A pointer to the created instance.
+ */
+ static CLocationContextPlugin* NewL();
+
+ /**
+ * Destructor.
+ */
+ virtual ~CLocationContextPlugin();
+
+// from base class CContextPlugin
+
+ /**
+ * From CContextPlugin.
+ * Initialization of Location Context Plugin.
+ *
+ * @param An observer to notify the completion of initialization to.
+ */
+ void Init( MContextPluginObserver& aObserver );
+
+ /**
+ * Set a pointer to MdESession.
+ * Session is used to store harvested context data.
+ *
+ * @param aSession Session pointer to set.
+ */
+ void SetMdeSession( CMdESession& aSession );
+
+ /**
+ * From CContextPlugin.
+ * This method takes a location context snapshot for one metadata object
+ * and writes the information to the object received as parameter.
+ * The observer will be informed about the status of the operation.
+ *
+ * @param aObserver An interface class to inform about finishing context snapshot.
+ * @param aMetadataObject An object to take the snapshot for.
+ */
+ void ContextSnapshot( MContextPluginObserver& aObserver, CHarvesterData& aHD );
+
+ /**
+ * From CContextPlugin.
+ * This method takes a location context snapshot for several metadata objects
+ * and writes the information to the all the objects received as parameter.
+ * The observer will be informed about the status of the operation.
+ *
+ * @param aObserver An interface class to inform about finishing context snapshot.
+ * @param aMetadataObjectArray Array of objects to take the snapshot for.
+ */
+ void ContextSnapshot( MContextPluginObserver& aObserver,
+ RPointerArray<CHarvesterData>& aHDArray );
+
+private:
+
+ /**
+ * Constructor, called by NewL() only.
+ */
+ CLocationContextPlugin();
+
+ /**
+ * Second phase constructor called by NewL.
+ */
+ void ConstructL();
+
+ /**
+ * A simple method to get creation date/time from a mde object.
+ *
+ * @param aObject A metadata object to get the date/time from.
+ * @param aTimeProperty A property to store the time information to.
+ */
+ void GetMdeObjectCreationTimeL( CMdEObject& aObject, CMdEProperty*& aProperty );
+
+private: // data
+
+ /** @var Observer to notify about finishing status of the context snapshot. */
+ MContextPluginObserver* iObserver;
+
+ /** @var Service to get GPS location information. */
+ RLocationTrail iLocationTrail;
+
+ /** @var Pointer to Mde session which is used to store context data. */
+ CMdESession* iMdeSession;
+
+ /** @var Location trail status flag to signal if Connect() was successful. */
+ TBool iLocationTrailConnected;
+
+ /** @var Service to modify location context objects. */
+ RLocationObjectManipulator iManipulator;
+ };
+
+#endif // CLOCATIONCONTEXTPLUGIN_H