JavaScript API Reference for Oracle ADF Faces

SUMMARY: FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD

org.w3c.dom.events
Class Event

org.ecmascript.object.Object
   |
   +--org.w3c.dom.events.Event

Direct Known Subclasses:

UIEvent

public abstract class Event
extends Object

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.

Introduced in DOM Level 2.

Note that this object is implemented and supported by the web browser and results of its use may vary.

Field Summary

public static Number	AT_TARGET The event is currently being evaluated at the target EventTarget.
public Boolean	bubbles Used to indicate whether or not an event is a bubbling event.
public static Number	BUBBLING_PHASE The current event phase is the bubbling phase.
public Boolean	cancelable Used to indicate whether or not an event can have its default action prevented.
public static Number	CAPTURING_PHASE The current event phase is the capturing phase.
public EventTarget	currentTarget Used to indicate the EventTarget whose EventListeners are currently being processed.
public Number	eventPhase Used to indicate which phase of event flow is currently being evaluated.
public EventTarget	target Used to indicate the EventTarget to which the event was originally dispatched.
public DOMTimeStamp	timeStamp Used to specify the time (in milliseconds relative to the epoch) at which the event was created.
public String	type The name of the event (case-insensitive).

Fields inherited from org.ecmascript.object.Object

constructor, prototype

Method Summary

public void	initEvent(String eventTypeArg, Boolean canBubbleArg, Boolean cancelableArg) The initEvent method is used to initialize the value of an Event created through the DocumentEvent interface.
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.
public void	stopPropagation() The stopPropagation method is used prevent further propagation of an event during event flow.

Field Detail

AT_TARGET

public static Number AT_TARGET

The event is currently being evaluated at the target EventTarget.

This is a readonly constant.

bubbles

public Boolean bubbles

Used to indicate whether or not an event is a bubbling event. If the event can bubble the value is true, else the value is false.

This is a readonly attribute

BUBBLING_PHASE

public static Number BUBBLING_PHASE

The current event phase is the bubbling phase.

This is a readonly constant.

cancelable

public Boolean cancelable

Used to indicate 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.

This is a readonly attribute

CAPTURING_PHASE

public static Number CAPTURING_PHASE

The current event phase is the capturing phase.

This is a readonly constant.

currentTarget

public EventTarget currentTarget

Used to indicate the EventTarget whose EventListeners are currently being processed. This is particularly useful during capturing and bubbling.

This is a readonly attribute

eventPhase

public Number eventPhase

Used to indicate which phase of event flow is currently being evaluated.

This is a readonly attribute

target

public EventTarget target

Used to indicate the EventTarget to which the event was originally dispatched.

This is a readonly attribute

timeStamp

public DOMTimeStamp timeStamp

Used to specify 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.

This is a readonly attribute

type

public String type

The name of the event (case-insensitive). The name must be an XML name.

This is a readonly attribute

Method Detail

initEvent

public void initEvent(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 attributes 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. It is also strongly recommended that third parties adding their own events use their own prefix to avoid confusion and lessen the probability of conflicts with other new events.
canBubbleArg	-	Specifies whether or not the event can bubble.
cancelableArg	-	Specifies whether or not the event's default action can be prevented.

Return:

void - null

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.

Return:

void - null

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.

Return:

void - null

SUMMARY: FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD