voiceui/voiceuivoicerecognition/inc/vuicnbestlistdialog.h
branchRCL_3
changeset 19 e36f3802f733
parent 0 bf1d17376201
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/voiceui/voiceuivoicerecognition/inc/vuicnbestlistdialog.h	Wed Sep 01 12:29:17 2010 +0100
@@ -0,0 +1,196 @@
+/*
+* Copyright (c) 2004-2008 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:  Definition of class that shows the N-Best List
+*
+*/
+
+#ifndef VUICNBESTLISTDIALOG_H
+#define VUICNBESTLISTDIALOG_H
+
+//  INCLUDES
+#include <aknlists.h>
+#include <aknlistquerydialog.h>
+#include <AknMediatorObserver.h>
+
+// FORWARD DECLARATIONS
+class CAknIconArray;
+class CListQueryDialog;
+class MKeyCallback;
+
+// CONSTANTS
+
+// CLASS DECLARATION
+
+/**
+* The N-Best List Dialog
+* @lib VoiceUiRecognition.lib
+*/
+NONSHARABLE_CLASS( CNBestListDialog ) : public CCoeControl,
+                                        public MEikCommandObserver,
+                                        public MAknDialogMediatorObserver
+    {
+    public:  // Constructors and destructor
+        
+        /**
+        * Two-phased constructor.
+        */
+        static CNBestListDialog* NewL();
+
+        /**
+        * Destructor.
+        */
+        virtual ~CNBestListDialog();
+
+    public: // New functions
+
+        /**
+        * Registers given object as a key listener
+        */
+        void RegisterForKeyCallback( MKeyCallback* aKeyCallback );
+        
+        /**
+        * Creates N-Best List
+        * @param aItems Items that will be shown in the list. Takes ownership of the list.
+        * @param aHeader Optional header text for the list
+        */
+        void CreateNBestListPopupLC( CDesC16ArrayFlat* aItems,
+                                     const TDesC& aHeader = KNullDesC );
+
+        /**
+        * Shows N-Best List
+        * @return Key value that caused the dialog to be dismissed
+        */
+        TInt ShowNBestListPopupL();
+        
+        /**
+        * Sets n-best list softkeys
+        * @param aResourceId Softkey resource id
+        */
+        void SetSoftkeysL( TInt aResourceId );
+        
+        /**
+        * Sets optional commands hidder or visible
+        * @param aHidden ETrue if commands should be hidden else EFalse
+        */
+        void SetCommandsHidden( TBool aHidden );
+
+        /**
+        * Takes care of the headset short key presses. Replaces the list with new one
+        * or moves down one item in the list.
+        * @param aItems New items that will be shown in the list. Takes ownership of the list.
+        * @return EFalse if the end of the list is passed else ETrue
+        */
+        TBool HandleShortKeypressL( CDesC16ArrayFlat* aItems );
+        
+        /**
+        * Returns currently selected index
+        * @return Index of current n-best list selection
+        */
+        TInt SelectedIndex();
+        
+    public:     // Functions from base classes
+    
+        /**
+        * From CCoeControl Called when a key is pressed
+        * @see CCoeControl
+        */
+        TKeyResponse OfferKeyEventL( const TKeyEvent& aKeyEvent, TEventCode aType );
+        
+        /**
+        * From MEikCommandObserver
+        * @see MEikCommandObserver for more information.
+        */
+        void ProcessCommandL( TInt aCommandId );
+        
+        /**
+        * From MAknDialogMediatorObserver
+        * @see MAknDialogMediatorObserver for more information.
+        */
+        TAknDialogMediatorObserverCommand MediatorCommandL( TUid aDomain, TUid aCategory, 
+                                                            TInt aCommandId,
+                                                            const TDesC8& aData ); 
+
+        /**
+        * From MAknDialogMediatorObserver
+        * @see MAknDialogMediatorObserver for more information.
+        */
+        void NotifyMediatorExit(); 
+
+    private:    // New functions
+
+        /**
+        * Converts key event to one of keypress enumeration values
+        * @param aKeyEvent Original key event
+        * @return One of keypress enumeration values
+        */
+        TInt ConvertKeyEventL( const TKeyEvent& aKeyEvent );
+
+        /**
+        * Creates new icon array. Ownership is transferred to caller.
+        * @return Icon array
+        */
+        CArrayPtr<CGulIcon>* CreateIconArrayL();
+
+        /**
+        * Load a possibly skinned icon (with mask) and append it to an 
+        * icon array.
+        * @param aArray    Icon array to add the icon to
+        * @param aID       Skin ID for the icon
+        * @param aBitmapId Id for the default icon in the MBM file
+        * @param aMaskId   Id for the default icon mask in the MBM file
+        */
+        static void AppendIconToArrayL( CAknIconArray* aArray,
+                                        const TAknsItemID& aID,
+                                        TInt aBitmapId,
+                                        TInt aMaskId );
+        
+        /**
+        * Creates and sets n-best list data to secondary display
+        * @param aItems New items that will be shown in the list. Takes ownership of the list.
+        */                                
+        void CreateAndSetSecondaryDisplayDataL( CDesC16ArrayFlat* aItems );
+                
+    private:    // Constructors
+
+        /**
+        * C++ default constructor.
+        */
+        CNBestListDialog();
+
+        /**
+        * By default Symbian 2nd phase constructor is private.
+        */
+        void ConstructL();
+
+    private: //data
+    
+        // Dialog
+        CListQueryDialog*                   iDialog;
+        
+        // Key observer
+        MKeyCallback*                       iKeyCallback;
+        
+        // Index of currently selected item
+        TInt                                iCurrentIndex;
+        
+        // Number of tags in the list
+        TInt                                iTagCount;
+                
+        // Current CBA resource id
+        TInt                                iCba;
+    };
+
+#endif  // VUICNBESTLISTDIALOG_H
+
+// End of File
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