--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tstaskmonitor/server/inc/tsfswengine.h	Thu May 27 13:11:12 2010 +0300
@@ -0,0 +1,178 @@
+/*
+* 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:  Task monitor engine
+ *
+*/
+
+
+#ifndef TSFSWENGINE_H
+#define TSFSWENGINE_H
+
+#define __E32SVR_H__
+
+#include <e32event.h>
+
+#include <e32base.h>
+#include <e32cmn.h>
+#include <s32strm.h>
+#include <fbs.h>
+#include <eikenv.h>
+#include <w32std.h>
+#include <e32hashtab.h>
+#include <apgcli.h>
+#include <e32property.h>
+#include "tsfswentry.h"
+#include "tsfswobservers.h"
+#include "hsdataprovider.h"
+#include "hsdataobserver.h"
+
+class MTsFswEngineObserver;
+class CTsFastSwapPreviewProvider;
+class CApaWindowGroupName;
+class CBitmapRotator;
+class CTsRotationTask;
+class CTSCpsNotifier;
+
+class CTsFswDataList;
+
+// descriptor big enough to store hex repr of 32-bit integer plus 0x prefix
+typedef TBuf<10> TAppUidHexString;
+
+/**
+ * Engine for fast swap server.
+ * Performs task monitoring, notifications about wg changes are
+ * received from the appui.
+ */
+NONSHARABLE_CLASS( CTsFswEngine ) : public CBase,
+        public MTsFswTaskListObserver
+
+    {
+    enum TTsFswFgAppType
+        {
+        /**
+         * Means that even when the foreground app has another app embedded
+         * into it the uid of the container application will be returned.
+         */
+        EUseStandaloneUid,
+        /**
+         * Means that if the foreground app has another app embedded
+         * into it then the returned uid will be the uid of the embedded
+         * app.
+         */
+        EUseEmbeddedUid
+        };
+    
+public:
+    /**
+     * Creates a new instance.
+     * @param   aObserver   ref to observer
+     */
+    static CTsFswEngine* NewL( MHsDataObserver& aObserver );
+
+    /**
+     * @copydoc NewL
+     */
+    static CTsFswEngine* NewLC( MHsDataObserver& aObserver );
+
+    /**
+     * Destructor.
+     */
+    ~CTsFswEngine();
+
+    /**
+     * Returns a reference to the current content.
+     * Also performs sanity checks, e.g. associates application icons
+     * when no screenshot has been received.
+     * @return  ref to content array
+     */
+    const RTsFswArray& FswDataL();
+
+
+
+
+private:
+
+    // from MTsFswTaskListObserver
+    void UpdateTaskList();
+
+
+
+private:
+    /**
+     * Constructor.
+     */
+    CTsFswEngine( MHsDataObserver& aObserver );
+
+    /**
+     * Performs 2nd phase construction.
+     */
+    void ConstructL();
+
+    /**
+     * Gets the window group list and reconstructs the fsw content.
+     * @return   TBool   ETrue if the list has been modified
+     */
+    TBool CollectTasksL();
+
+
+    /**
+     * Callback for the iUpdateStarter timer.
+     * Calls CollectTasksL and notifies the observer if the task list
+     * has really been modified.
+     */
+    static TInt UpdateStarterCallback( TAny* aParam );
+
+    /**
+     * Returns the uid of the foreground app or KNullUid.
+     * Will never return hidden apps, only those which can
+     * also be seen in the array returned by FswDataL.
+     *
+     * In case of embedded apps the behaviour is controlled
+     * by aType: it will return either the uid of the embedded
+     * application or the container app.
+     *
+     * @param   aType   @see CTsFswClient::TTsFswFgAppType
+     */
+    TUid ForegroundAppUidL( TInt aType );
+    
+    /**
+     * Gets and publishes the foreground app uid to CFW.
+     */
+    void PublishFgAppUidL();
+
+private:
+    // data    
+    MHsDataObserver& iObserver;
+
+    // window server session
+    RWsSession iWsSession;
+
+    // apparc session
+    RApaLsSession iAppArcSession;
+
+    // timer to defer content refresh
+    CPeriodic* iUpdateStarter;
+
+
+    // window group ids returned by last WindowGroupList call
+    RArray<TInt> iWgIds;
+  
+    TUid iFgAppUid;
+
+
+    CTsFswDataList* iDataList;//own
+
+    };
+
+#endif