org.assertj.swing.monitor

Class WindowMonitor

java.lang.Object

org.assertj.swing.monitor.WindowMonitor

public class WindowMonitor
extends Object

Monitor that keeps track of all known root AWT or Swing Windows (showing, hidden, closed).

Author:

Alex Ruiz

Method Summary

Modifier and Type	Method and Description
Collection<EventQueue>	allEventQueues()
EventQueue	eventQueueFor(Component c) Returns the event queue corresponding to the given AWT or Swing Compoenent.
static WindowMonitor	instance()
boolean	isWindowReady(Window w) Returns whether the AWT or Swing Window is ready to receive OS-level event input.
Collection<Window>	rootWindows() Return all available root Windows.

Methods inherited from class java.lang.Object

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

Method Detail

isWindowReady

public boolean isWindowReady(@Nonnull
                             Window w)

Returns whether the AWT or Swing Window is ready to receive OS-level event input. A Window's "isShowing" flag may be set true before the WINDOW_OPENED event is generated, and even after the WINDOW_OPENED event is sent, the Window peer is not guaranteed to be ready.

Parameters:

w - the given Window.

Returns:

whether the Window is ready to receive OS-level event input.

eventQueueFor

@Nullable
public EventQueue eventQueueFor(@Nonnull
                                          Component c)

Returns the event queue corresponding to the given AWT or Swing Compoenent. In most cases, this is the same as Component.getToolkit().getSystemEventQueue(), but in the case of applets will bypass the AppContext and provide the real event queue.

Parameters:

c - the given Component.

Returns:

the event queue corresponding to the given component.

allEventQueues

@Nonnull
public Collection<EventQueue> allEventQueues()

Returns:

all known event queues.

rootWindows

@Nonnull
public Collection<Window> rootWindows()

Return all available root Windows. A root Window is one that has a null parent. Nominally this means a list similar to that returned by Frame.getFrames(), but in the case of an Applet may return a few dialogs as well.

Returns:

all available root Windows.

instance

@RunsInEDT
 @Nonnull
public static WindowMonitor instance()

Returns:

the singleton instance of this class.