org.w3c.dom.events
Interface Event

All Known Subinterfaces:

MutationEvent

All Known Implementing Classes:

EventImpl

public interface Event

The Event interface is used to provide contextual information about an event to the handler processing the event. An object which implements the Event interface is generally passed as the first parameter to an event handler. More specific context information is passed to event handlers by deriving additional interfaces from Event which contain information directly relating to the type of event they accompany. These derived interfaces are also implemented by the object passed to the event listener.

Since:

DOM Level 2

Field Summary

static short	AT_TARGET
static short	BUBBLING_PHASE
static short	CAPTURING_PHASE

Method Summary

boolean	getBubbles() The bubbles property indicates whether or not an event is a bubbling event.
boolean	getCancelable() The cancelable property indicates whether or not an event can have its default action prevented.
Node	getCurrentNode() The currentNode property indicates the Node whose EventListeners are currently being processed.
short	getEventPhase() The eventPhase property indicates which phase of event flow is currently being evaluated.
EventTarget	getTarget() The target property indicates the EventTarget to which the event was originally dispatched.
long	getTimeStamp() The timeStamp specifies the time (in milliseconds relative to the epoch) at which the event was created.
java.lang.String	getType() The type property represents the event name as a string property.
void	initEvent(java.lang.String eventTypeArg, boolean canBubbleArg, boolean cancelableArg) The initEvent method is used to initialize the value of an Event created through the DocumentEvent interface.
void	preventDefault() If an event is cancelable, the preventDefault method is used to signify that the event is to be canceled, meaning any default action normally taken by the implementation as a result of the event will not occur.
void	stopPropagation() The stopPropagation method is used prevent further propagation of an event during event flow.

Field Detail

CAPTURING_PHASE

public static final short CAPTURING_PHASE

AT_TARGET

public static final short AT_TARGET

BUBBLING_PHASE

public static final short BUBBLING_PHASE

Method Detail

getType

public java.lang.String getType()

The type property represents the event name as a string property. The string must be an XML name .

getTarget

public EventTarget getTarget()

The target property indicates the EventTarget to which the event was originally dispatched.

getCurrentNode

public Node getCurrentNode()

The currentNode property indicates the Node whose EventListeners are currently being processed. This is particularly useful during capturing and bubbling.

getEventPhase

public short getEventPhase()

The eventPhase property indicates which phase of event flow is currently being evaluated.

getBubbles

public boolean getBubbles()

The bubbles property indicates whether or not an event is a bubbling event. If the event can bubble the value is true, else the value is false.

getCancelable

public boolean getCancelable()

The cancelable property indicates whether or not an event can have its default action prevented. If the default action can be prevented the value is true, else the value is false.

getTimeStamp

public long getTimeStamp()

The timeStamp specifies the time (in milliseconds relative to the epoch) at which the event was created. Due to the fact that some systems may not provide this information the value of timeStamp may be not available for all events. When not available, a value of 0 will be returned. Examples of epoch time are the time of the system start or 0:0:0 UTC 1st January 1970.

stopPropagation

public void stopPropagation()

The stopPropagation method is used prevent further propagation of an event during event flow. If this method is called by any EventListener the event will cease propagating through the tree. The event will complete dispatch to all listeners on the current EventTarget before event flow stops. This method may be used during any stage of event flow.

preventDefault

public void preventDefault()

If an event is cancelable, the preventDefault method is used to signify that the event is to be canceled, meaning any default action normally taken by the implementation as a result of the event will not occur. If, during any stage of event flow, the preventDefault method is called the event is canceled. Any default action associated with the event will not occur. Calling this method for a non-cancelable event has no effect. Once preventDefault has been called it will remain in effect throughout the remainder of the event's propagation. This method may be used during any stage of event flow.

initEvent

public void initEvent(java.lang.String eventTypeArg,
                      boolean canBubbleArg,
                      boolean cancelableArg)

The initEvent method is used to initialize the value of an Event created through the DocumentEvent interface. This method may only be called before the Event has been dispatched via the dispatchEvent method, though it may be called multiple times during that phase if necessary. If called multiple times the final invocation takes precedence. If called from a subclass of Event interface only the values specified in the initEvent method are modified, all other properties are left unchanged.

Parameters:

eventTypeArg - Specifies the event type. This type may be any event type currently defined in this specification or a new event type.. The string must be an XML name . Any new event type must not begin with any upper, lower, or mixed case version of the string "DOM". This prefix is reserved for future DOM event sets.

canBubbleArg - Specifies whether or not the event can bubble.

cancelableArg - Specifies whether or not the event's default action can be prevented.