com.google.gwt.user.client.ui
Class LayoutCommand

java.lang.Object
  com.google.gwt.user.client.ui.LayoutCommand

All Implemented Interfaces:

Scheduler.ScheduledCommand

public class LayoutCommand
extends java.lang.Object
implements Scheduler.ScheduledCommand

A scheduled command used by animated layouts to ensure that only layout is ever performed for a panel within a given user event.

Note: This class assumes that Layer.getUserObject() will return the widget associated with a given layer.

LayoutCommand

public LayoutCommand(Layout layout)

Creates a new command for the given layout object.

Parameters:

layout -

cancel

public void cancel()

Cancels this command. A subsequent call to schedule(int, Layout.AnimationCallback) will re-enable it.

execute

public final void execute()

Description copied from interface: Scheduler.ScheduledCommand

Invokes the command.

Specified by:

execute in interface Scheduler.ScheduledCommand

schedule

public void schedule(int duration,
                     Layout.AnimationCallback callback)

Schedules a layout. The duration and callback passed to this method will supercede any previous call that has not yet been executed.

Parameters:

duration -

callback -

doBeforeLayout

protected void doBeforeLayout()

Called before the layout is executed. Override this method to perform any work that needs to happen just before it.