--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmlibs/mmfw/src/Client/Video/mediaclientwseventobserver.cpp	Thu Oct 07 22:34:12 2010 +0100
@@ -0,0 +1,177 @@
+// Copyright (c) 2010 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:
+//
+
+#include "mediaclientwseventobserver.h"
+#include "mediaclientvideotrace.h"
+
+CMediaClientWsEventObserver* CMediaClientWsEventObserver::NewL(MMediaClientWsEventObserverCallback& aCallback)
+    {
+    DEBUG_PRINTF("CMediaClientWsEventObserver::NewL +++");
+    CMediaClientWsEventObserver* self = new (ELeave) CMediaClientWsEventObserver(aCallback);
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop(self);
+    DEBUG_PRINTF("CMediaClientWsEventObserver::NewL ---");
+    return self;
+    }
+
+CMediaClientWsEventObserver::CMediaClientWsEventObserver(MMediaClientWsEventObserverCallback& aCallback) :
+CActive(EPriorityStandard),
+iCallback(aCallback)
+    {   
+    DEBUG_PRINTF("CMediaClientWsEventObserver::CMediaClientWsEventObserver +++"); 
+    DEBUG_PRINTF("CMediaClientWsEventObserver::CMediaClientWsEventObserver ---");
+    }
+
+void CMediaClientWsEventObserver::ConstructL()
+    {
+    DEBUG_PRINTF("CMediaClientWsEventObserver::ConstructL +++");
+    
+    DEBUG_PRINTF("CMediaClientWsEventObserver::ConstructL RWsSession Connect");
+    TInt err = iWs.Connect();
+    if (err != KErrNone)
+        {
+        DEBUG_PRINTF2("CMediaClientWsEventObserver::ConstructL Windows Server unavailable, err %d", err);
+        User::Leave(err);
+        }
+    
+    DEBUG_PRINTF("CMediaClientWsEventObserver::ConstructL RWindowGroup Create");
+    iWindowGroup = RWindowGroup(iWs);
+    User::LeaveIfError(iWindowGroup.Construct((TUint32)this, EFalse));
+
+    // Send created window to the background and hide it from the
+    // application switcher    
+    iWindowGroup.SetOrdinalPosition( -1, -1000 ); // -1000 = ECoeWinPriorityNeverAtFront
+
+    DEBUG_PRINTF("CMediaClientWsEventObserver::ConstructL RWindowGroup EnableFocusChangeEvents");
+    User::LeaveIfError(iWindowGroup.EnableFocusChangeEvents());
+    
+    UpdateFocusWindowGroupId(ETrue);
+    DEBUG_PRINTF3("CMediaClientWsEventObserver::ConstructL Initial WgId %d Error %d", iWgId, iWgIdError);
+
+    CActiveScheduler::Add(this);
+
+    // register with window server to receive focus change notifications
+    DEBUG_PRINTF("CMediaClientWsEventObserver::ConstructL iWs.EventReady()");
+    iWs.EventReady(&iStatus);
+
+    DEBUG_PRINTF("CMediaClientWsEventObserver::ConstructL SetActive()");
+    SetActive();
+    
+    DEBUG_PRINTF("CMediaClientWsEventObserver::ConstructL ---");
+    }
+
+CMediaClientWsEventObserver::~CMediaClientWsEventObserver()
+    {
+    DEBUG_PRINTF("CMediaClientWsEventObserver::~CMediaClientWsEventObserver +++");
+
+    Cancel();
+
+    iWindowGroup.Close();
+    
+    iWs.Close();
+    
+    DEBUG_PRINTF("CMediaClientWsEventObserver::~CMediaClientWsEventObserver ---");
+    }
+
+TInt CMediaClientWsEventObserver::FocusWindowGroupId(TInt& aFocusGroupId)
+    {
+    DEBUG_PRINTF("CMediaClientWsEventObserver::FocusWindowGroupId +++");
+    aFocusGroupId = iWgId;
+    DEBUG_PRINTF3("CMediaClientWsEventObserver::FocusWindowGroupId --- WgId %d, Error %d", iWgId, iWgIdError);
+    return iWgIdError;
+    }
+
+void CMediaClientWsEventObserver::UpdateFocusWindowGroupId(TBool aConstruction)
+    {
+    DEBUG_PRINTF2("CMediaClientWsEventObserver::UpdateFocusWindowGroupId +++, construction %d", aConstruction);
+    
+    TInt wgId = iWs.GetFocusWindowGroup();
+    DEBUG_PRINTF2("CMediaClientWsEventObserver::UpdateFocusWindowGroupId id %d ", wgId);
+
+    // get the thread that owns windowgroup id
+    TThreadId threadId;
+    iWgIdError = iWs.GetWindowGroupClientThreadId(wgId, threadId);
+    if(iWgIdError != KErrNone)
+        {
+        DEBUG_PRINTF2("CMediaClientWsEventObserver::UpdateFocusWindowGroupId --- Get Thread Id error %d", iWgIdError);
+        return;
+        }
+    
+    RThread thread;    
+    iWgIdError = thread.Open(threadId);
+    if(iWgIdError != KErrNone)
+        {
+        DEBUG_PRINTF2("CMediaClientWsEventObserver::UpdateFocusWindowGroupId --- Open thread error %d", iWgIdError);
+        return;
+        }
+    
+    TSecureId fgThreadId = thread.SecureId();
+    thread.Close();
+    
+    if(iCallback.MmcweoIgnoreProcess(fgThreadId))
+        {
+        // If ignore returns ETrue during construction the previous value of iWgId does not contain a valid id. It is 0.
+        // This is an error case so set error flag accordingly.
+        if(aConstruction)
+            {
+            iWgIdError = KErrNotSupported;    
+            }
+        }
+    else
+        {
+        iWgId = wgId;
+        }
+
+    DEBUG_PRINTF("CMediaClientWsEventObserver::UpdateFocusWindowGroupId --- ");
+    }
+
+void CMediaClientWsEventObserver::RunL()
+    {
+    DEBUG_PRINTF("CMediaClientWsEventObserver::RunL +++");
+
+    iWs.GetEvent(iEvent);    
+
+    DEBUG_PRINTF("CMediaClientWsEventObserver::RunL EventReady()");
+    iWs.EventReady(&iStatus);
+    DEBUG_PRINTF("CMediaClientWsEventObserver::RunL SetActive()");
+    SetActive();
+
+    DEBUG_PRINTF2("CMediaClientWsEventObserver::RunL() Ws event.Type %d", iEvent.Type());
+    if(iEvent.Type() == EEventFocusGroupChanged)
+        {
+        DEBUG_PRINTF("CMediaClientWsEventObserver::RunL Received EEventFocusGroupChanged");
+        
+        TInt prevWgId = iWgId;
+        UpdateFocusWindowGroupId(EFalse);
+        if((iWgIdError != KErrNone) || (iWgId != prevWgId))
+            {
+            iCallback.MmcweoFocusWindowGroupChanged();
+            }
+        }
+    else
+        {
+        DEBUG_PRINTF("CMediaClientWsEventObserver::RunL Event Ignored");
+        }
+
+    DEBUG_PRINTF("CMediaClientWsEventObserver::RunL ---");
+    }
+
+void CMediaClientWsEventObserver::DoCancel()
+    {
+    DEBUG_PRINTF("CMediaClientWsEventObserver::DoCancel +++");
+    iWs.EventReadyCancel();
+    DEBUG_PRINTF("CMediaClientWsEventObserver::DoCancel ---");
+    }