com.google.gwt.user.client.ui
Interface HasFocus

All Superinterfaces:
SourcesFocusEvents, SourcesKeyboardEvents
All Known Implementing Classes:
FocusPanel, FocusWidget

public interface HasFocus
extends SourcesFocusEvents, SourcesKeyboardEvents

A widget that implements this interface can receive keyboard focus.


Method Summary
 int getTabIndex()
          Gets the widget's position in the tab index.
 void setAccessKey(char key)
          Sets the widget's 'access key'.
 void setFocus(boolean focused)
          Explicitly focus/unfocus this widget.
 void setTabIndex(int index)
          Sets the widget's position in the tab index.
 
Methods inherited from interface com.google.gwt.user.client.ui.SourcesFocusEvents
addFocusListener, removeFocusListener
 
Methods inherited from interface com.google.gwt.user.client.ui.SourcesKeyboardEvents
addKeyboardListener, removeKeyboardListener
 

Method Detail

setAccessKey

public void setAccessKey(char key)
Sets the widget's 'access key'. This key is used (in conjunction with a browser-specific modifier key) to automatically focus the widget.

Parameters:
key - the widget's access key

setFocus

public void setFocus(boolean focused)
Explicitly focus/unfocus this widget. Only one widget can have focus at a time, and the widget that does will receive all keyboard events.

Parameters:
focused - whether this widget should take focus or release it

getTabIndex

public int getTabIndex()
Gets the widget's position in the tab index.

Returns:
the widget's tab index

setTabIndex

public void setTabIndex(int index)
Sets the widget's position in the tab index. If more than one widget has the same tab index, each such widget will receive focus in an arbitrary order. Setting the tab index to -1 will cause this widget to be removed from the tab order.

Parameters:
index - the widget's tab index


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