org.apache.batik.bridge
Class FocusManager

java.lang.Object
  org.apache.batik.bridge.FocusManager

Direct Known Subclasses:

SVG12FocusManager

public class FocusManager
extends Object

A class that manages focus on elements.

Version:

$Id: FocusManager.java 1733416 2016-03-03 07:07:13Z gadams $

Author:

Thierry Kormann

Nested Class Summary

protected class	FocusManager.DOMFocusInTracker The class that is responsible for tracking 'DOMFocusIn' changes.
protected class	FocusManager.DOMFocusOutTracker The class that is responsible for tracking 'DOMFocusOut' changes.
protected class	FocusManager.MouseClickTracker The class that is responsible for tracking 'mouseclick' changes.
protected class	FocusManager.MouseOutTracker The class that is responsible to update the focus according to 'mouseout' event.
protected class	FocusManager.MouseOverTracker The class that is responsible to update the focus according to 'mouseover' event.

Field Summary

protected Document	document The document.
protected EventListener	domFocusInListener The EventListener that tracks 'DOMFocusIn' events.
protected EventListener	domFocusOutListener The EventListener that tracks 'DOMFocusOut' events.
protected EventTarget	lastFocusEventTarget The element that has the focus so far.
protected EventListener	mouseclickListener The EventListener that tracks 'mouseclick' events.
protected EventListener	mouseoutListener The EventListener that tracks 'mouseout' events.
protected EventListener	mouseoverListener The EventListener that tracks 'mouseover' events.

Constructor Summary

FocusManager(Document doc)
Constructs a new FocusManager for the specified document.

Method Summary

protected void	addEventListeners(Document doc) Adds the event listeners to the document.
void	dispose() Removes all listeners attached to the document and that manage focus.
protected void	fireDOMActivateEvent(EventTarget target, int detailArg) Fires a 'DOMActivate' event to the specified target.
protected void	fireDOMFocusInEvent(EventTarget target, EventTarget relatedTarget) Fires a 'DOMFocusIn' event to the specified target.
protected void	fireDOMFocusOutEvent(EventTarget target, EventTarget relatedTarget) Fires a 'DOMFocusOut' event to the specified target.
EventTarget	getCurrentEventTarget() Returns the current element that has the focus or null if any.
protected void	removeEventListeners(Document doc) Removes the event listeners from the document.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

lastFocusEventTarget

protected EventTarget lastFocusEventTarget

The element that has the focus so far.

document

protected Document document

The document.

mouseclickListener

protected EventListener mouseclickListener

The EventListener that tracks 'mouseclick' events.

domFocusInListener

protected EventListener domFocusInListener

The EventListener that tracks 'DOMFocusIn' events.

domFocusOutListener

protected EventListener domFocusOutListener

The EventListener that tracks 'DOMFocusOut' events.

mouseoverListener

protected EventListener mouseoverListener

The EventListener that tracks 'mouseover' events.

mouseoutListener

protected EventListener mouseoutListener

The EventListener that tracks 'mouseout' events.

Constructor Detail

FocusManager

public FocusManager(Document doc)

Constructs a new FocusManager for the specified document.

Parameters:

doc - the document

Method Detail

addEventListeners

protected void addEventListeners(Document doc)

Adds the event listeners to the document.

removeEventListeners

protected void removeEventListeners(Document doc)

Removes the event listeners from the document.

getCurrentEventTarget

public EventTarget getCurrentEventTarget()

Returns the current element that has the focus or null if any.

dispose

public void dispose()

Removes all listeners attached to the document and that manage focus.

fireDOMFocusInEvent

protected void fireDOMFocusInEvent(EventTarget target,
                                   EventTarget relatedTarget)

Fires a 'DOMFocusIn' event to the specified target.

Parameters:

target - the newly focussed event target

relatedTarget - the previously focussed event target

fireDOMFocusOutEvent

protected void fireDOMFocusOutEvent(EventTarget target,
                                    EventTarget relatedTarget)

Fires a 'DOMFocusOut' event to the specified target.

Parameters:

target - the previously focussed event target

relatedTarget - the newly focussed event target

fireDOMActivateEvent

protected void fireDOMActivateEvent(EventTarget target,
                                    int detailArg)

Fires a 'DOMActivate' event to the specified target.

Parameters:

target - the event target

detailArg - the detailArg parameter of the event