| Package | Description | 
|---|---|
| com.google.gwt.event.logical.shared | Types related to logical events that do not have direct analogues to DOM
 events and which can be used in contexts other than web browsers. | 
| com.google.gwt.user.client.ui | Widgets, Panels, and other user-interface classes. | 
| Modifier and Type | Method and Description | 
|---|---|
| static <T> void | SelectionEvent. fire(HasSelectionHandlers<T> source,
    T selectedItem)Fires a selection event on all registered handlers in the handler
 manager.If no such handlers exist, this method will do nothing. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | DecoratedTabBar
 A  TabBarthat wraps each tab in a 2x3 grid (six box), which allows
 users to add rounded corners. | 
| class  | DecoratedTabPanelA  TabPanelthat uses aDecoratedTabBarwith rounded corners. | 
| class  | StackLayoutPanelA panel that stacks its children vertically, displaying only one at a time,
 with a header for each child which the user can click to display. | 
| class  | SuggestBoxA  SuggestBoxis a text box or text area which displays a
 pre-configured set of selections that match the user's input. | 
| class  | TabBarA horizontal bar of folder-style tabs, most commonly used as part of a
  TabPanel. | 
| class  | TabLayoutPanelA panel that represents a tabbed set of pages, each of which contains another
 widget. | 
| class  | TabPanelA panel that represents a tabbed set of pages, each of which contains another
 widget. | 
| class  | TreeA standard hierarchical tree widget. |