--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/slideshow/view/src/shwslideshowpausehandler.h	Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,125 @@
+/*
+* Copyright (c) 2006-2007 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
+ *
+*/
+
+
+
+
+#ifndef __CSHWSLIDESHOWPAUSEHANDLER_H__
+#define __CSHWSLIDESHOWPAUSEHANDLER_H__
+
+// INCLUDES
+#include <coecntrl.h>
+
+// FORWARD DECLARATIONS
+class CShwSlideshowEngine;
+
+// CLASS DECLARATION
+
+/**
+ * CShwSlideShowPauseHandler
+ * This class handles the different pause related requirements of 
+ * slide show: User pause, Phone call pause, Task away pausing.
+ * User pause/resume has the highest precedence, phone call is next
+ * and then task away (switch to background)
+ * So if the user pauses slideshow and then a phone call starts and 
+ * ends, slide show stays paused. Similarly if slideshow is running
+ * and gets switched to background and a phone call starts, slide show
+ * does not continue when switched to foreground unless the phone call
+ * ends before that.
+ */
+NONSHARABLE_CLASS( CShwSlideShowPauseHandler )
+		  : public CBase
+	{
+	public: // Constructors and destructor
+
+        /**
+         * Constructor.
+         * @param reference to the slide show engine
+         */
+         static CShwSlideShowPauseHandler* NewL( CShwSlideshowEngine& aEngine );
+
+        /**
+         * Destructor.
+         */
+        ~CShwSlideShowPauseHandler();
+
+    private:
+
+        /**
+         * Constructor
+         * @param reference to the slide show engine
+         */
+         CShwSlideShowPauseHandler( CShwSlideshowEngine& aEngine );
+
+    public: // The API
+
+        /**
+          * Informs the pause handler that user paused slide show
+          * Engine will always be paused if it was running and 
+          * vice versa,
+          */
+        void UserToggledPauseL();
+
+        /**
+          * Informs the pause handler that a phone call has started.
+          * If engine is running when call starts, if will be paused
+          */
+        void PhoneCallStartedL();
+
+        /**
+          * Informs the pause handler that a phone call has ended
+          * If engine was paused by telephone call we resume slide show
+          * when call ends
+          */
+        void PhoneCallEndedL();
+
+        /**
+          * Informs the pause handler that slide show was switched to background.
+          * If engine is running when switch occurs, if will be paused
+          */
+        void SwitchToBackgroundL();
+
+        /**
+          * Informs the pause handler that slide show was switched to foreground.
+          * If engine was paused when switch to background occurred, if will be resumed
+          * unless a phone call is ongoing.
+          */
+        void SwitchToForegroundL();
+        
+        /**
+          * Informs the pause handler that MSK Preesed when slide show is running. 
+          */
+        void ToggleUiControlsVisibiltyL();
+
+    private: // Implementation
+
+        /// Ref: The slideshow engine
+        CShwSlideshowEngine& iEngine;
+
+        /// Own: state flag to know if we are in a call
+        TBool iInCall;
+        
+        /// Own: state flag to know when user paused us
+        TBool iUserPaused;
+        
+        /// Own: state flag to know when we are on foreground
+        TBool iOnForeground;
+
+    };
+
+#endif // __CSHWSLIDESHOWPAUSEHANDLER_H__
+