Class FocusPanel

public class FocusPanel
extends SimplePanel
implements HasFocus, SourcesClickEvents, SourcesMouseEvents, SourcesMouseWheelEvents
A simple panel that makes its contents focusable, and adds the ability to catch mouse and keyboard events.

Constructors

FocusPanel()
FocusPanel(Widget)

Methods

addClickListener(ClickListener)Adds a listener interface to receive click events.
addFocusListener(FocusListener)Adds a listener interface to receive mouse events.
addKeyboardListener(KeyboardListener)Adds a listener interface to receive keyboard events.
addMouseListener(MouseListener)Adds a listener interface to receive mouse events.
addMouseWheelListener(MouseWheelListener)Adds a listener interface to receive mouse events.
getTabIndex()Gets the widget's position in the tab index.
onBrowserEvent(Event)
removeClickListener(ClickListener)Removes a previously added listener interface.
removeFocusListener(FocusListener)Removes a previously added listener interface.
removeKeyboardListener(KeyboardListener)Removes a previously added listener interface.
removeMouseListener(MouseListener)Removes a previously added listener interface.
removeMouseWheelListener(MouseWheelListener)Removes a previously added listener interface.
setAccessKey(char)Sets the widget's 'access key'.
setFocus(boolean)Explicitly focus/unfocus this widget.
setTabIndex(int)Sets the widget's position in the tab index.

Constructor Detail

FocusPanel

public FocusPanel()

FocusPanel

public FocusPanel(Widget child)

Parameters

child

Method Detail

addClickListener

public void addClickListener(ClickListener listener)
Adds a listener interface to receive click events.

Parameters

listener
the listener interface to add

addFocusListener

public void addFocusListener(FocusListener listener)
Adds a listener interface to receive mouse events.

Parameters

listener
the listener interface to add

addKeyboardListener

public void addKeyboardListener(KeyboardListener listener)
Adds a listener interface to receive keyboard events.

Parameters

listener
the listener interface to add

addMouseListener

public void addMouseListener(MouseListener listener)
Adds a listener interface to receive mouse events.

Parameters

listener
the listener interface to add

addMouseWheelListener

public void addMouseWheelListener(MouseWheelListener listener)
Adds a listener interface to receive mouse events.

Parameters

listener
the listener interface to add

getTabIndex

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

Return Value

the widget's tab index

onBrowserEvent

public void onBrowserEvent(Event event)

Parameters

event

removeClickListener

public void removeClickListener(ClickListener listener)
Removes a previously added listener interface.

Parameters

listener
the listener interface to remove

removeFocusListener

public void removeFocusListener(FocusListener listener)
Removes a previously added listener interface.

Parameters

listener
the listener interface to remove

removeKeyboardListener

public void removeKeyboardListener(KeyboardListener listener)
Removes a previously added listener interface.

Parameters

listener
the listener interface to remove

removeMouseListener

public void removeMouseListener(MouseListener listener)
Removes a previously added listener interface.

Parameters

listener
the listener interface to remove

removeMouseWheelListener

public void removeMouseWheelListener(MouseWheelListener listener)
Removes a previously added listener interface.

Parameters

listener
the listener interface to remove

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

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