Setting the title pane touch observer

To set the title pane touch observer:

1. Provide an observer class that implements the MaknTitlePaneObserver interface.

   class MyTitlePaneObserver : public MAknTitlePaneObserver
       {
   public:
       void HandleTitlePaneEventL( TInt aEventID );
       };
   
   {
       switch( TAknTitlePaneEvents )
           {
            case EAknTitlePaneTapped:
                 ...
                 break;
   
            default
                 break;
   }

2. Get a pointer to the title pane via the status pane pointer.

   iStatusPane = static_cast<CAknAppUi*>( CEikonEnv::Static()-> EikAppUi() )->StatusPane();
   if( !iStatusPane )
       {
       User::Leave( KErrNotFound );
       }
    
   iTitlePane = ( CAknTitlePane* )iStatusPane->ControlL( TUid::Uid( EEikStatusPaneUidTitle ) );
   if( !iTitlePane )
       {
       User::Leave( KErrNotFound );
       }
   

3. Set the observer using the SetTitlePaneObserver method.

   iTitlePane->SetTitlePaneObserver( this );