| Package | Description | 
|---|---|
| com.google.gwt.user.client.ui | Widgets, Panels, and other user-interface classes. | 
| Modifier and Type | Interface and Description | 
|---|---|
| static interface  | DialogBox.CaptionSet of characteristic interfaces supported by the  DialogBoxcaption. | 
| interface  | HasDirectionalSafeHtmlAn object that implements this interface contains html that has a direction. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | AnchorA widget that represents a simple <a> element. | 
| class  | ButtonA standard push-button widget. | 
| class  | ButtonBase | 
| class  | CheckBoxA standard check box widget. | 
| class  | CustomButtonCustomButton is a base button class with built in support for a set number
 of button faces. | 
| class  | CustomButton.FaceRepresents a button's face. | 
| class  | DialogBoxA form of popup that has a caption area at the top and can be dragged by the
 user. | 
| static class  | DialogBox.CaptionImplDefault implementation of Caption. | 
| class  | HTMLA widget that can contain arbitrary HTML. | 
| class  | HyperlinkA widget that serves as an "internal" hyperlink. | 
| class  | InlineHTMLA widget that can contain arbitrary HTML. | 
| class  | InlineHyperlinkA widget that serves as an "internal" hyperlink. | 
| class  | MenuItemAn entry in a
  MenuBar. | 
| class  | PushButtonA normal push button with custom styling. | 
| class  | RadioButtonA mutually-exclusive selection radio button widget. | 
| class  | ResetButtonA standard push-button widget which will automatically reset its enclosing
  FormPanelif any. | 
| class  | RichTextAreaA rich text editor that allows complex styling and formatting. | 
| class  | SubmitButtonA standard push-button widget which will automatically submit its enclosing
  FormPanelif any. | 
| class  | ToggleButtonA  ToggleButtonis a stylish stateful button which allows the
 user to toggle betweenupanddownstates. | 
| class  | TreeItemAn item that can be contained within a
  Tree. |