--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tstaskmonitor/server/src/tsfswengine.cpp	Fri May 14 17:24:44 2010 +0300
@@ -0,0 +1,221 @@
+/*
+* 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
+ *
+*/
+
+
+#include "tsfswengine.h"
+
+#include "tsfswdatalist.h"
+
+
+
+
+#include <apgtask.h>
+#include <AknDef.h>
+#include <apgwgnam.h>
+#include <mmf/common/mmfcontrollerpluginresolver.h> // for CleanupResetAndDestroyPushL
+#include <featmgr.h>
+#include <swi/swispubsubdefs.h>
+#include <s32mem.h>
+#include <bitmaptransforms.h>
+
+// time to wait before refreshing content
+const TInt KContentRefreshDelay = 50000; // 0.05 sec
+
+
+// --------------------------------------------------------------------------
+// CTsFswEngine::NewL
+// --------------------------------------------------------------------------
+//
+CTsFswEngine* CTsFswEngine::NewL( MHsDataObserver& aObserver )
+    {
+    CTsFswEngine* self = NewLC( aObserver );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// --------------------------------------------------------------------------
+// CTsFswEngine::NewLC
+// --------------------------------------------------------------------------
+//
+CTsFswEngine* CTsFswEngine::NewLC( MHsDataObserver& aObserver )
+    {
+    CTsFswEngine* self = new ( ELeave ) CTsFswEngine( aObserver );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    return self;
+    }
+
+// --------------------------------------------------------------------------
+// CTsFswEngine::CTsFswEngine
+// --------------------------------------------------------------------------
+//
+CTsFswEngine::CTsFswEngine( MHsDataObserver& aObserver )
+        :iObserver( aObserver )
+    {
+    }
+
+// --------------------------------------------------------------------------
+// CTsFswEngine::ConstructL
+// --------------------------------------------------------------------------
+//
+void CTsFswEngine::ConstructL()
+    {
+    User::LeaveIfError( iWsSession.Connect() );
+    User::LeaveIfError( iAppArcSession.Connect() );
+
+    iDataList = CTsFswDataList::NewL(*this);    
+
+    // get an initial list of tasks
+    iDataList->SetAppDataRefreshNeeded();
+    CollectTasksL();
+
+    iUpdateStarter = CPeriodic::NewL( CActive::EPriorityStandard );   
+    }
+
+// --------------------------------------------------------------------------
+// CTsFswEngine::~CTsFswEngine
+// --------------------------------------------------------------------------
+//
+CTsFswEngine::~CTsFswEngine()
+    {
+
+    delete iUpdateStarter;
+
+    iWgIds.Close();
+
+    iAppArcSession.Close();
+    iWsSession.Close();
+
+    delete iDataList;
+    }
+
+// --------------------------------------------------------------------------
+// CTsFswEngine::FswDataL
+// --------------------------------------------------------------------------
+//
+const RTsFswArray& CTsFswEngine::FswDataL()
+    {
+    return iDataList->FswDataL();
+    }
+
+// --------------------------------------------------------------------------
+// CTsFswEngine::UpdateTaskList
+// Callback from appui
+// --------------------------------------------------------------------------
+//
+void CTsFswEngine::UpdateTaskList()
+    {
+    // There can be many calls in a row, use a timer to prevent degrading
+    // device performance.
+    iDataList->SetDirty();
+    if ( !iUpdateStarter->IsActive() )
+        {
+        iUpdateStarter->Start( KContentRefreshDelay, 0,
+                TCallBack( UpdateStarterCallback, this ) );
+        }    
+    // get the foreground app uid and publish it to CFW if different than before
+    TRAP_IGNORE( PublishFgAppUidL() );
+    }
+
+// --------------------------------------------------------------------------
+// CTsFswEngine::UpdateStarterCallback
+// Callback for the timer
+// --------------------------------------------------------------------------
+//
+TInt CTsFswEngine::UpdateStarterCallback( TAny* aParam )
+    {
+    CTsFswEngine* self = static_cast<CTsFswEngine*>( aParam );
+    self->iUpdateStarter->Cancel();
+    // get list of tasks and notify observer if there is a change in the list
+    TBool changed = EFalse;
+    TRAPD( err, changed = self->CollectTasksL() );
+    if ( err == KErrNone && changed )
+        {
+        self->iObserver.DataChanged();
+        }
+    return 0;
+    }
+
+// --------------------------------------------------------------------------
+// CTsFswEngine::CollectTasksL
+// --------------------------------------------------------------------------
+//
+TBool CTsFswEngine::CollectTasksL()
+    {
+    TBool changed = iDataList->CollectTasksL();
+    return changed;
+    }
+
+// --------------------------------------------------------------------------
+// CTsFswEngine::ForegroundAppUidL
+// --------------------------------------------------------------------------
+//
+TUid CTsFswEngine::ForegroundAppUidL( TInt aType )
+    {
+    // Do not use GetFocusWindowGroup or others.
+    // We want to see only "real" application uids in FgApp,
+    // i.e. stuff that would also be shown in the task swapper
+    // area of Taskswitcher.
+
+    TUid result = KNullUid;
+    RArray<RWsSession::TWindowGroupChainInfo> allWgIds;
+    CleanupClosePushL( allWgIds );
+    User::LeaveIfError( iWsSession.WindowGroupList( 0, &allWgIds ) );
+    TInt count = allWgIds.Count();
+    for ( TInt i = 0; i < count; ++i )
+        {
+        // Depending on aType we may not need to bother with iParentId here.
+        // If aType == EUseEmbeddedUid => embedded apps are treated as others.
+        // If aType == EUseStandaloneUid => embedded apps must be ignored.
+        if ( allWgIds[i].iParentId > 0
+                && aType == CTsFswEngine::EUseStandaloneUid )
+            {
+            continue;
+            }
+
+        CApaWindowGroupName* wgn = CApaWindowGroupName::NewLC(
+            iWsSession, allWgIds[i].iId );
+        TUid newUid = wgn->AppUid();
+        TBool hidden = wgn->Hidden();
+        CleanupStack::PopAndDestroy( wgn );
+
+        if ( !hidden && newUid.iUid && !iDataList->IsHiddenUid(newUid) )
+            {
+            result = newUid;
+            break;
+            }
+        }
+    CleanupStack::PopAndDestroy( &allWgIds );
+    
+    return result;
+    }
+
+// --------------------------------------------------------------------------
+// CTsFswEngine::PublishFgAppUidL
+// --------------------------------------------------------------------------
+//
+void CTsFswEngine::PublishFgAppUidL()
+    {
+    TUid newUid = ForegroundAppUidL( CTsFswEngine::EUseEmbeddedUid );
+    if ( iFgAppUid != newUid && newUid.iUid )
+        {
+        iFgAppUid = newUid;
+        iDataList->MoveEntryAtStart(newUid.iUid, EFalse);
+        }
+    }
+
+// end of file