--- a/epoc32/include/coeview.h	Tue Nov 24 13:55:44 2009 +0000
+++ b/epoc32/include/coeview.h	Tue Mar 16 16:12:26 2010 +0000
@@ -1,1 +1,174 @@
-coeview.h
+// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
+// which accompanies this distribution, and is available
+// at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+#ifndef __COEVIEW_H__
+#define __COEVIEW_H__
+
+#include <vwsdef.h>
+#include <coemain.h> // for CCoeStatic
+
+class CCoeAppUi;
+
+/** Specifies an interface for views. 
+
+This class should be implemented by all application views. 
+
+@publishedAll
+@released */
+class MCoeView
+	{
+public:	
+	/** Returns a TVwsViewId uniquely identifying the view.
+	
+	@return Represents a view in the server. */
+	virtual TVwsViewId ViewId() const=0;
+private:
+	/** Takes any action required when a view is activated. Reimplemented versions 
+	should read the contents of aCustomMessage for any message type identified 
+	by aCustomMessageId that the view understands.
+	
+	The ID of the previously active view aPrevViewId is supplied so that the activated 
+	view can subsequently switch back to the caller if required.
+	
+	@param aPrevViewId The UID of the previously active view.
+	@param aCustomMessageId Message type.
+	@param aCustomMessage Message contents. 
+
+	@publishedAll
+	@released */
+	virtual void ViewActivatedL(const TVwsViewId& aPrevViewId,TUid aCustomMessageId,const TDesC8& aCustomMessage)=0;
+	/** Takes any action that is required following deactivation of the view. 
+	
+	This reduces the work required of the window server.
+
+	@publishedAll
+	@released */
+	virtual void ViewDeactivated()=0;
+
+protected:
+	IMPORT_C MCoeView();
+	IMPORT_C virtual TVwsViewIdAndMessage ViewScreenDeviceChangedL();
+private:
+	IMPORT_C virtual void ViewConstructL();
+protected:
+	IMPORT_C virtual TBool ViewScreenModeCompatible(TInt aScreenMode); // was MCoeView_Reserved_1()
+private:
+	friend class CCoeViewManager;
+	IMPORT_C virtual void PrepareForViewActivation();
+	IMPORT_C virtual void MCoeView_Reserved_2();
+	IMPORT_C virtual void MCoeView_Reserved_3();
+private:
+	TInt iMCoeView_Reserved1;
+	};
+
+/** An interface through which view deactivations can be
+notified to an observer.
+
+Dialogs and other floating windows such as virtual keyboards which should be dismissed
+when a view is deactivated can implement this interface and take any action required.
+
+@publishedAll
+@released */
+class MCoeViewDeactivationObserver
+	{
+public:
+	//
+	// Handles the deactivation of the view identified by aViewIdToBeDeactivated before the newly activated
+	// view with id aNewlyActivatedViewId is marked as current.
+	//
+	virtual void HandleViewDeactivation(const TVwsViewId& aViewIdToBeDeactivated,const TVwsViewId& aNewlyActivatedViewId)=0;
+protected:
+	IMPORT_C MCoeViewDeactivationObserver();
+private:
+	IMPORT_C virtual void MCoeViewDeactivationObserver_Reserved_1();
+	IMPORT_C virtual void MCoeViewDeactivationObserver_Reserved_2();
+private:
+	TInt iMCoeViewDeactivationObserver_Reserved1;
+	};
+
+/** An interface through which view activations can be notified to an observer.
+
+@publishedPartner
+@released
+*/
+class MCoeViewActivationObserver
+	{
+public:
+	//
+	// Handles the activation of the view aNewlyActivatedViewId before the old view aViewIdToBeDeactivated is
+	// to be deactivated.
+	//
+	virtual void HandleViewActivation(const TVwsViewId& aNewlyActivatedViewId,const TVwsViewId& aViewIdToBeDeactivated)=0;
+protected:
+	IMPORT_C MCoeViewActivationObserver();
+private:
+	IMPORT_C virtual void MCoeViewActivationObserver_Reserved_1();
+	IMPORT_C virtual void MCoeViewActivationObserver_Reserved_2();
+private:
+	TInt iMCoeViewActivationObserver_Reserved1;
+	};
+
+
+/** An interface through which view events can be notified to an observer.
+
+@publishedPartner
+@released */
+class MCoeViewObserver
+	{
+public:
+	virtual void HandleViewEventL(const TVwsViewEvent& aEvent)=0;
+protected:
+	IMPORT_C MCoeViewObserver();
+private:
+	IMPORT_C virtual void MCoeViewObserver_Reserved1();
+	IMPORT_C virtual void MCoeViewObserver_Reserved2();
+private:
+	TInt iMCoeViewObserver_Reserved1;
+	};
+
+
+//
+// Handles any screen device changes that occur while a view is active 
+//
+/** A default screen device change handler. 
+
+This class is used to activate a default view when a screen "flip" occurs, 
+if the currently active view does not implement MCoeView::ViewScreenDeviceChangedL().
+
+@publishedAll 
+@released
+@see MCoeView::ViewScreenDeviceChangedL() */
+class CCoeScreenDeviceChangeDefaultHandler : public CCoeStatic
+	{
+public:
+	IMPORT_C ~CCoeScreenDeviceChangeDefaultHandler();
+	IMPORT_C static CCoeScreenDeviceChangeDefaultHandler* Self();
+protected:
+	IMPORT_C CCoeScreenDeviceChangeDefaultHandler();
+	IMPORT_C CCoeScreenDeviceChangeDefaultHandler(TInt aDestructionPriority);
+private:
+	IMPORT_C virtual void CCoeStatic_Reserved1();
+	IMPORT_C virtual void CCoeStatic_Reserved2();
+	IMPORT_C virtual void CCoeScreenDeviceChangeDefaultHandler_Reserved1();
+	IMPORT_C virtual void CCoeScreenDeviceChangeDefaultHandler_Reserved2();
+public:
+	virtual void HandleScreenDeviceChangedL()=0;
+	virtual TVwsViewIdAndMessage DefaultViewOnScreenDeviceChanged()=0;
+private:
+	TInt iCCoeScreenDeviceChangeDefaultHandler;
+	};
+
+
+#endif	// __COEVIEW_H__