Class CustomEvent

The CustomEvent interface is the recommended interface for application-specific event types.

Extends

Event

Members Table

The following table lists the members exposed by the CustomEvent object.

Show inherited members (marked with *)

Show: Properties Methods

Attribute Description Property Type Readonly Description bubbles * Boolean true Used to indicate whether or not an event is a bubbling event. cancelable * Boolean true Used to indicate whether or not an event can have its default action prevented. currentTarget * Node true Used to indicate the EventTarget whose EventListeners are currently being processed. This is particularly useful during capturing and bubbling. defaultPrevented * Boolean true Used to indicate whether preventDefault() has been called for this event. detail Object false Specifies some detail information about the Event. eventPhase * Number true Used to indicate which phase of event flow is currently being evaluated. namespaceURI * String true The namespace URI associated with this event at initialization time, or null if it is unspecified. target * Node true Used to indicate the EventTarget to which the event was originally dispatched. timeStamp * TimeStamp true Used to specify the time (in milliseconds relative to the epoch) at which the event was created. type * String true The name of the event (case-insensitive). The name must be an XML name. Method Returns Description initCustomEvent Void Initializes attributes of a CustomEvent object. Sytaxis: object.initCustomEvent(type, canBubble, cancelable, detail) Arguments: Name Type O/R Description type String Required Specifies the event type. canBubble Boolean Required Specifies whether or not the event can bubble. cancelable Boolean Required Specifies whether or not the event's default action can be prevented. detail Object Required Specifies detail. This value may be null. initEvent * Void The initEvent method is used to initialize the value of an Event created through the DocumentEvent interface. Sytaxis: object.initEvent(type, canBubble, cancelable) Arguments: Name Type O/R Description type String Required Specifies the event type. canBubble Boolean Required Specifies whether or not the event can bubble. cancelable Boolean Required Specifies whether or not the event's default action can be prevented. preventDefault * Void 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. Sytaxis: object.preventDefault() stopImmediatePropagation * Void Prevents other event listeners from being triggered and, unlike stopPropagation() its effect is immediate Sytaxis: object.stopImmediatePropagation() stopPropagation * Void The stopPropagation method is used prevent further propagation of an event during event flow. 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. Sytaxis: object.stopPropagation() Event B C Interface Description Pseudo-class Description Constant Value Description

Remarks

Events of that type are usually implemented in custom components.