net.sf.doolin.gui.display
Class ContextDisplayStateHandler

java.lang.Object
  net.sf.doolin.gui.display.AbstractDisplayStateHandler
      net.sf.doolin.gui.display.ContextDisplayStateHandler

All Implemented Interfaces:

DisplayStateHandler

public class ContextDisplayStateHandler
extends AbstractDisplayStateHandler

Checks that the context is not null.

Author:

Damien Coraboeuf

Constructor Summary

ContextDisplayStateHandler()

Method Summary

DisplayState	getDisplayState(ActionContext actionContext) Gets the current DisplayState for the given action context
void	subscribe(ActionContext actionContext, Runnable task) Subscribes a task that is executed each time this display state handler changes its state.

Methods inherited from class net.sf.doolin.gui.display.AbstractDisplayStateHandler

connect, connect

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ContextDisplayStateHandler

public ContextDisplayStateHandler()

Method Detail

getDisplayState

public DisplayState getDisplayState(ActionContext actionContext)

Description copied from interface: DisplayStateHandler

Gets the current DisplayState for the given action context

Parameters:

actionContext - Action context.

Returns:

Display state

subscribe

public void subscribe(ActionContext actionContext,
                      Runnable task)

Description copied from interface: DisplayStateHandler

Subscribes a task that is executed each time this display state handler changes its state.

Parameters:

actionContext - Action context for this display state handler

task - Task to run each time the state change