--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/slideshow/view/src/shwslideshowpausehandler.cpp	Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,188 @@
+/*
+* Copyright (c) 2007-2008 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:    The pause handling control for the slideshow
+ *
+*/
+
+
+
+
+//  CLASS HEADER
+#include "shwslideshowpausehandler.h"
+
+//  EXTERNAL INCLUDES
+
+//  INTERNAL INCLUDES
+#include "shwslideshowengine.h"
+
+#include <glxlog.h>
+#include <glxtracer.h>
+
+// -----------------------------------------------------------------------------
+// C++ Constructor. inlined to save a few bits of ROM
+// -----------------------------------------------------------------------------
+inline CShwSlideShowPauseHandler::CShwSlideShowPauseHandler(
+        CShwSlideshowEngine& aEngine )
+    : iEngine( aEngine ),
+    iInCall( EFalse ),  // set to false just to clarify
+    iUserPaused( EFalse ), // set to false to clarify
+    iOnForeground( ETrue ) // we are on foreground by default
+    {
+    // No implementation required
+    }
+
+// -----------------------------------------------------------------------------
+// NewL. Static construction
+// -----------------------------------------------------------------------------
+CShwSlideShowPauseHandler* CShwSlideShowPauseHandler::NewL(
+        CShwSlideshowEngine& aEngine )
+    {
+    TRACER("CShwSlideShowPauseHandler::OfferKeyEventL");
+    GLX_LOG_INFO( "CShwSlideShowPauseHandler::NewL" );
+    CShwSlideShowPauseHandler* self = 
+        new( ELeave ) CShwSlideShowPauseHandler( aEngine );
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// Destructor.
+// -----------------------------------------------------------------------------
+CShwSlideShowPauseHandler::~CShwSlideShowPauseHandler()
+    {
+    // No implementation required
+    }
+// -----------------------------------------------------------------------------
+// UserToggledControlsVisibiltyL.
+// -----------------------------------------------------------------------------
+void CShwSlideShowPauseHandler::ToggleUiControlsVisibiltyL()
+    {
+        iEngine.ToggleUiControlsVisibiltyL();
+    }
+// -----------------------------------------------------------------------------
+// UserToggledPauseL.
+// -----------------------------------------------------------------------------
+void CShwSlideShowPauseHandler::UserToggledPauseL()
+    {
+    TRACER("CShwSlideShowPauseHandler::UserToggledPauseL");
+    GLX_LOG_INFO( 
+        "CShwSlideShowPauseHandler::UserToggledPauseL" );
+    // get the engine state unless we are on background
+    if( iOnForeground )
+        {
+        CShwSlideshowEngine::TShwState state = iEngine.State();
+        if ( CShwSlideshowEngine::EShwStateRunning == state )
+            {
+            // user paused us
+            iUserPaused = ETrue;
+            // Calling PauseL on the engine results in the view receiving an
+            // paused event from engine observer.
+            iEngine.PauseL();
+            }
+        else if ( CShwSlideshowEngine::EShwStatePaused == state )
+            {
+            // user resumed us
+            iUserPaused = EFalse;
+            // if engine is paused, resume
+            iEngine.ResumeL(); 
+            }
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// PhoneCallStartedL.
+// -----------------------------------------------------------------------------
+void CShwSlideShowPauseHandler::PhoneCallStartedL()
+    {
+    TRACER("CShwSlideShowPauseHandler::PhoneCallStartedL");
+    GLX_LOG_INFO( 
+        "CShwSlideShowPauseHandler::PhoneCallStartedL" );
+    // set state to in call
+    iInCall = ETrue;
+    // get the engine state
+    CShwSlideshowEngine::TShwState state = iEngine.State();
+    // if engine is running
+    if ( CShwSlideshowEngine::EShwStateRunning == state )
+        {
+        // Calling PauseL on the engine results in the view receiving an
+        // paused event from engine observer.
+        iEngine.PauseL();
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// PhoneCallEndedL.
+// -----------------------------------------------------------------------------
+void CShwSlideShowPauseHandler::PhoneCallEndedL()
+    {
+    TRACER("CShwSlideShowPauseHandler::PhoneCallEndedL");
+    GLX_LOG_INFO( 
+        "CShwSlideShowPauseHandler::PhoneCallEndedL" );
+    // set state to not in call
+    iInCall = EFalse;
+    // only resume when we are on foreground
+    if( iOnForeground )
+        {
+        // get the engine state
+        CShwSlideshowEngine::TShwState state = iEngine.State();
+        // if not paused by user and engine is paused, resume
+        if( ( !iUserPaused )&&
+            ( CShwSlideshowEngine::EShwStatePaused == state ) )
+            {
+            iEngine.ResumeL(); 
+            }
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// SwitchToBackgroundL.
+// -----------------------------------------------------------------------------
+void CShwSlideShowPauseHandler::SwitchToBackgroundL()
+    {
+    TRACER("CShwSlideShowPauseHandler::SwitchToBackgroundL");
+    GLX_LOG_INFO( 
+        "CShwSlideShowPauseHandler::SwitchToBackgroundL" );
+    // we are now not on foreground
+    iOnForeground = EFalse;
+    // get the engine state
+    CShwSlideshowEngine::TShwState state = iEngine.State();
+    // if engine is running
+    if ( CShwSlideshowEngine::EShwStateRunning == state )
+        {
+        // Calling PauseL on the engine results in the view receiving an
+        // paused event from engine observer.
+        iEngine.PauseL();
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// SwitchToForegroundL.
+// -----------------------------------------------------------------------------
+void CShwSlideShowPauseHandler::SwitchToForegroundL()
+    {
+    TRACER("CShwSlideShowPauseHandler::SwitchToForegroundL");
+    GLX_LOG_INFO( 
+        "CShwSlideShowPauseHandler::SwitchToForegroundL" );
+    // we are now on foreground
+    iOnForeground = ETrue;
+    // get the engine state
+    CShwSlideshowEngine::TShwState state = iEngine.State();
+    // if we are not paused by user, not in call and engine is paused, resume
+    if( ( !iUserPaused )&&
+        ( !iInCall )&&
+        ( CShwSlideshowEngine::EShwStatePaused == state ) )
+        {
+        iEngine.ResumeL(); 
+        }
+    }
+