Package com.google.gwt.user.client.ui

Interface HasWidgets

All Superinterfaces:

Iterable<Widget>

All Known Subinterfaces:

HasWidgets.ForIsWidget

All Known Implementing Classes:

AbsolutePanel, CaptionPanel, CellGridImpl, CellPanel, ComplexPanel, CustomScrollPanel, DeckLayoutPanel, DeckPanel, DecoratedPopupPanel, DecoratedStackPanel, DecoratedTabPanel, DecoratorPanel, DefaultCalendarView.CellGrid, DialogBox, DisclosurePanel, DockLayoutPanel, DockPanel, FlexTable, FlowPanel, FocusPanel, FormPanel, Grid, HeaderPanel, HorizontalPanel, HorizontalSplitPanel, HTMLPanel, HTMLTable, LayoutPanel, LazyPanel, LoggingPopup, Panel, PopupPanel, RenderablePanel, ResizeLayoutPanel, RootLayoutPanel, RootPanel, ScrollPanel, SimpleLayoutPanel, SimplePanel, SplitLayoutPanel, SplitPanel, StackLayoutPanel, StackPanel, TabLayoutPanel, TabPanel, Tree, VerticalPanel, VerticalSplitPanel

public interface HasWidgets
extends Iterable<Widget>

A widget that implements this interface contains widgets and can enumerate them.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	HasWidgets.ForIsWidget	Extends this interface with convenience methods to handle IsWidget.

Method Summary

Modifier and Type	Method	Description
void	add(Widget w)	Adds a child widget.
void	clear()	Removes all child widgets.
Iterator<Widget>	iterator()	Gets an iterator for the contained widgets.
boolean	remove(Widget w)	Removes a child widget.

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Method Details

add

void add(Widget w)

Adds a child widget.

Parameters:

w - the widget to be added

Throws:

UnsupportedOperationException - if this method is not supported (most often this means that a specific overload must be called)

clear

void clear()

Removes all child widgets.

iterator

Iterator<Widget> iterator()

Gets an iterator for the contained widgets. This iterator is required to implement Iterator.remove().

Specified by:

iterator in interface Iterable<Widget>

remove

boolean remove(Widget w)

Removes a child widget.

Parameters:

w - the widget to be removed

Returns:

true if the widget was present