Scope Controller Objects

Controllers are created by extending the Scope API's Basic Controller

Controllers have three responsibilities:

1. Set the model and the view (usually in the constructor)
   

   public LoginController() {         
       setModel(new CheckoutModel());         
       setView(mainView);     
   }

2. Handle controls in the doHandleControl method Controllers respond to Control objects from two sources:
   

   protected void doHandleControl(Control inControl) throws ControlException { 
       if (inControl.matchesID(VALIDATE_LOGIN)) { 
           doValidateLogin();         
       } 
   }

   • Issued from Views as a result of user interaction
   • Issued from child Sub-Controllers in the chain of responsibility
   • Issued locally using the handleControl command
3. Startup

   public void startup() {         
       LoginView myView = (LoginView)getView();         
       myView.setViewBounds(myView.CENTRED);         
       showView(myView);     
   }