diff -r 5aadd1120515 -r b57382753122 notepad/notepad1/ViewerInc/NpdViewerAppUi.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/notepad/notepad1/ViewerInc/NpdViewerAppUi.h	Wed Nov 03 17:12:22 2010 +0530
@@ -0,0 +1,122 @@
+/*
+* Copyright (c) 2002 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:  Declarations for Notepad Viewer Application UI class.
+*
+*/
+
+
+#ifndef NOTEPADVIEWERAPPUI_H
+#define NOTEPADVIEWERAPPUI_H
+
+// INCLUDES
+#include <aknappui.h>
+
+// FORWARD DECLARATIONS
+class CNotepadViewerDialog;
+class CNotepadApi;
+
+// CLASS DECLARATION
+/**
+* Notepad Viewer application UI class.
+* 
+*/
+class CNotepadViewerAppUi : public CAknAppUi
+    {
+    public: // Constructors and destructor
+
+        /**
+        * Second phase onstructor.
+        */      
+        void ConstructL();
+
+        /**
+        * Destructor.
+        */      
+        virtual ~CNotepadViewerAppUi();
+
+    private: // Functions from base classes
+
+        /**
+        * From CEikAppUi.
+        * Takes care of command handling.
+        *
+        * @param aCommand command to be handled
+        */
+        void HandleCommandL(TInt aCommand);
+
+        /**
+        * From CEikAppUi.
+        * Command line processing.
+        *
+        * When DocumentHandler wants to launch NpdViewer as a standalone
+        * application, it use RApaLsSession::StartDocument(filename, ...).
+        *
+        * CEikonEnv::ConstructAppFromCommandLineL(...), at first, pass 
+        * the filename information to ProcessCommandParametersL 
+        * correctly. But default CEikAppUi::ProcessCommandParametersL 
+        * overwrite it's reference parameter (TFileName& aDocumentName) to 
+        * application's defualt document name such as "NpdViewer.ini".
+        * (In EikAppUi.cpp, 
+        * Application()->GetDefaultDocumentFileName(aDocumentName);
+        * do this). 
+        * So,  when CEikonEnv::ConstructAppFromCommandLineL(...) calls
+        * CApaDocument::OpenFileL(...), the filename information from 
+        * Document Handler had been lost.
+        * 
+        * On the other hand, when DocumentHandler wants to launch NpdViewer 
+        * as a embeded application, it use CApaDocument::OpenFileL() directly 
+        * and never call ProcessCommandParametersL.
+        *
+        * So, in order to pass a correct filename information to OpenFileL 
+        * in both case, we decide to override this function.
+        *
+        * @param aCommand command. (ignored)
+        * @param aDocumentName Filename.
+        * @param aTail optional command line parampeter. (ignored)
+        * @return ETrue if aDocumentName file exists.
+        */
+        TBool ProcessCommandParametersL(
+            TApaCommand aCommand,
+            TFileName& aDocumentName,
+            const TDesC8& aTail);
+
+        /**
+        * From CEikAppUi.
+        * Start fileviewer with specified filename.
+        * Both standalone and embeded case, this function is really called 
+        *
+        * @param aFilename Filename to view.
+        */
+        void OpenFileL(const TDesC& aFilename);
+
+	public:
+	
+        /**
+        * Start fileviewer with specified file handle.
+        * Both standalone and embeded case, this function is really called 
+        *
+        * @param aFile File handle.
+        */
+        void OpenFileL(RFile& aFile);
+
+    private: // Data
+
+        CNotepadApi* iApi; // own
+        TBool iCurrentFileOpened; // To avoid reopening of same file.
+
+    };
+
+#endif // NOTEPADVIEWERAPPUI_H
+
+// End of File