HasWidgets (GWT Javadoc)

All Superinterfaces:

java.lang.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 java.lang.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

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`add(Widget w)`	Adds a child widget.
`void`	`clear()`	Removes all child widgets.
`java.util.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 Detail
  - add
```
void add(Widget w)
```
    Adds a child widget.
    
    Parameters:
    
    w - the widget to be added
    
    Throws:
    
    java.lang.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
```
java.util.Iterator<Widget> iterator()
```
    Gets an iterator for the contained widgets. This iterator is required to implement Iterator.remove().
    
    Specified by:
    
    iterator in interface java.lang.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