gnu.xml.dom
Class DomEvent

java.lang.Object
  extended bygnu.xml.dom.DomEvent
All Implemented Interfaces:
Event
Direct Known Subclasses:
DomEvent.DomMutationEvent, DomEvent.DomUIEvent

public class DomEvent
extends Object
implements Event

"Event" implementation. Events are created (through DocumentEvent interface methods on the document object), and are sent to any target node in the document.

Applications may define application specific event subclasses, but should otherwise use the DocumentTraversal interface to acquire event objects.

Version:
$Date: 2001/11/20 04:57:05 $
Author:
David Brownell

Nested Class Summary
static class DomEvent.DomMutationEvent
          "MutationEvent" implementation.
static class DomEvent.DomUIEvent
          "UIEvent" implementation.
 
Field Summary
 
Fields inherited from interface org.w3c.dom.events.Event
AT_TARGET, BUBBLING_PHASE, CAPTURING_PHASE
 
Constructor Summary
DomEvent(String type)
          Constructs, but does not initialize, an event.
 
Method Summary
 boolean getBubbles()
          Returns true if the news of the event bubbles to tree tops (as specified during initialization).
 boolean getCancelable()
          Returns true if the default handling may be canceled (as specified during initialization).
 EventTarget getCurrentTarget()
          Returns the target to which events are currently being delivered.
 short getEventPhase()
          Returns CAPTURING_PHASE, AT_TARGET, or BUBBLING; only meaningful within EventListener.handleEvent
 EventTarget getTarget()
          Returns event's target; delivery of an event is initiated by a target.dispatchEvent(event) invocation.
 long getTimeStamp()
          Returns the event's timestamp.
 String getType()
          Returns the event's type (name) as initialized
 void initEvent(String typeArg, boolean canBubbleArg, boolean cancelableArg)
          Initializes basic event state.
 void preventDefault()
          Requests that whoever dispatched the event not perform their default processing when event delivery completes.
 void stopPropagation()
          Requests the event no longer be captured or bubbled; only listeners on the event target will see the event, if they haven't yet been notified.
 String toString()
          Returns a basic printable description of the event's type, state, and delivery conditions
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

DomEvent

public DomEvent(String type)
Constructs, but does not initialize, an event.

Method Detail

getType

public final String getType()
Returns the event's type (name) as initialized

Specified by:
getType in interface Event

getTarget

public final EventTarget getTarget()
Returns event's target; delivery of an event is initiated by a target.dispatchEvent(event) invocation.

Specified by:
getTarget in interface Event

getCurrentTarget

public final EventTarget getCurrentTarget()
Returns the target to which events are currently being delivered. When capturing or bubbling, this will not be what getTarget returns.

Specified by:
getCurrentTarget in interface Event

getEventPhase

public final short getEventPhase()
Returns CAPTURING_PHASE, AT_TARGET, or BUBBLING; only meaningful within EventListener.handleEvent

Specified by:
getEventPhase in interface Event

getBubbles

public final boolean getBubbles()
Returns true if the news of the event bubbles to tree tops (as specified during initialization).

Specified by:
getBubbles in interface Event

getCancelable

public final boolean getCancelable()
Returns true if the default handling may be canceled (as specified during initialization).

Specified by:
getCancelable in interface Event

getTimeStamp

public final long getTimeStamp()
Returns the event's timestamp.

Specified by:
getTimeStamp in interface Event

stopPropagation

public void stopPropagation()
Requests the event no longer be captured or bubbled; only listeners on the event target will see the event, if they haven't yet been notified.

Avoid using this except for application-specific events, for which you the protocol explicitly "blesses" the use of this with some event types. Otherwise, you are likely to break algorithms which depend on event notification either directly or through bubbling or capturing.

Note that this method is not final, specifically to enable enforcing of policies about events always propagating.

Specified by:
stopPropagation in interface Event

preventDefault

public final void preventDefault()
Requests that whoever dispatched the event not perform their default processing when event delivery completes. Initializes event timestamp.

Specified by:
preventDefault in interface Event

initEvent

public void initEvent(String typeArg,
                      boolean canBubbleArg,
                      boolean cancelableArg)
Initializes basic event state.

Specified by:
initEvent in interface Event

toString

public String toString()
Returns a basic printable description of the event's type, state, and delivery conditions



Source code is under GPL (with library exception) in the JAXP project at http://www.gnu.org/software/classpathx/jaxp
This documentation was derived from that source code on 2007-02-12.