UIContextFocus Constructor
        
 Constructor.
 
         
        Parameters
        
            - focusLogic
            
 
            - 
                
Type: Function
 The logic to run when context focused.  
            - releaseLogic
            
 
            - 
                
Type: Function
 The logic to run when context focus is released.  
            - options
            
 
            - 
                
Type: Object
 Options:
     toolbarCommands - [type="Array", elementType="dundas.controls.ToolbarItem"] - the toolbar items that the tool bar will display when in context focus. If specified, toolbar will be restored to prior to context focus when context focus is released.
Optional: True