--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/viewframework/tvout/src/glxwindowvisibilitymonitor.cpp	Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,142 @@
+/*
+* Copyright (c) 2008-2009 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:    Class that monitors tv window visibility
+*
+*/
+
+
+
+/**
+ * @internal reviewed 24/08/2007 by D Holland
+ */
+
+//  CLASS HEADER
+#include "glxwindowvisibilitymonitor.h"
+
+//  EXTERNAL INCLUDES
+#include <w32std.h>             // for TWsEvent
+#include <AknDef.h>             // for KAknFullOrPartialForegroundLost
+#include <AknWsEventObserver.h> // for EventMonitor
+#include <aknappui.h>
+
+//  INTERNAL INCLUDES
+#include <glxlog.h>
+#include <glxpanic.h>
+#include "glxtv.h"              // for MGlxWindowVisibilityObserver
+
+
+
+//-----------------------------------------------------------------------------
+// Return new object
+//-----------------------------------------------------------------------------
+//
+CGlxWindowVisibilityMonitor* CGlxWindowVisibilityMonitor::NewL(
+                               MGlxWindowVisibilityObserver& aVisibilityObserver ) 
+    {
+    GLX_LOG_INFO("CGlxWindowVisibilityMonitor::NewL");
+    CGlxWindowVisibilityMonitor* self = new ( ELeave ) 
+                CGlxWindowVisibilityMonitor( aVisibilityObserver );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+    
+
+//-----------------------------------------------------------------------------
+// Destructor
+//-----------------------------------------------------------------------------
+//
+CGlxWindowVisibilityMonitor::~CGlxWindowVisibilityMonitor()
+    {
+    GLX_LOG_INFO("~CGlxWindowVisibilityMonitor");
+    }
+
+
+//-----------------------------------------------------------------------------
+// Close
+// To overcome code-scanner high rated warning
+//-----------------------------------------------------------------------------
+//
+void CGlxWindowVisibilityMonitor::Close()
+    {
+    iAknEventMonitor->Enable( EFalse );
+    iAknEventMonitor->RemoveObserver( this );
+    }
+
+//-----------------------------------------------------------------------------
+// Default C++ constructor
+//-----------------------------------------------------------------------------
+//
+CGlxWindowVisibilityMonitor::CGlxWindowVisibilityMonitor
+                           ( MGlxWindowVisibilityObserver& aVisibilityObserver ) 
+                            :iVisibilityObserver ( aVisibilityObserver )
+    {
+    GLX_LOG_INFO("CGlxWindowVisibilityMonitor");
+    }
+
+
+//-----------------------------------------------------------------------------
+// Symbian second phase constructor
+//-----------------------------------------------------------------------------
+//
+void CGlxWindowVisibilityMonitor::ConstructL()
+    {
+    GLX_LOG_INFO("CGlxWindowVisibilityMonitor::ConstructL");
+    // Register for visibility events
+    iAknEventMonitor = 
+       static_cast<CAknAppUiBase*>(CCoeEnv::Static()->AppUi())->EventMonitor();
+    iAknEventMonitor->Enable( ETrue );
+    iAknEventMonitor->AddObserverL( this );
+    }
+
+
+//-----------------------------------------------------------------------------
+// From class MAknWsEventObserver
+// Propagates window server visibility events to the observer
+//-----------------------------------------------------------------------------
+//
+void CGlxWindowVisibilityMonitor::HandleWsEventL( const TWsEvent& aEvent, 
+                                                CCoeControl* /*aDestination*/ )
+    {
+    GLX_LOG_INFO("CGlxWindowVisibilityMonitor::HandleWsEventL");
+	TInt eventType = aEvent.Type();
+
+    if ( eventType == EEventWindowVisibilityChanged )
+        {
+        // check the state 
+        TUint visible = aEvent.VisibilityChanged()->iFlags;
+        // notify the observer
+        if ( visible & TWsVisibilityChangedEvent::EFullyVisible )
+            {
+            GLX_LOG_INFO("Visibility Event - EFullyVisible");
+            iVisibilityObserver.HandleWindowVisibilityChangedL( ETvDisplayIsVisible ); 
+            }
+        else if ( visible & TWsVisibilityChangedEvent::ENotVisible )
+            {
+            GLX_LOG_INFO("Visibility Event - ENotVisible");
+            iVisibilityObserver.HandleWindowVisibilityChangedL( ETvDisplayNotVisible ); 
+            }
+         else if (visible & TWsVisibilityChangedEvent::EPartiallyVisible)   
+            {
+            GLX_LOG_INFO("Visibility Event - EPartiallyVisible");
+            iVisibilityObserver.HandleWindowVisibilityChangedL( ETvDisplayNotVisible ); 
+            }
+        }
+    }
+
+
+
+
+