Class FocusEvent

The FocusEvent interface provides specific contextual information associated with Focus events.

Extends

UIEvent

Members Table

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

Show inherited members (marked with *)

Show: Properties Methods

Attribute Description Property Type Readonly Description $pseudoTarget * HTMLElement false Keeps the reference to pseudo element where event originated. 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 * Number false Specifies some detail information about the Event, depending on the type of 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. relatedTarget Element true Specifies FocusEvent.relatedTarget. This value may be null. 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. view * Object false The view attribute identifies the AbstractView from which the event was generated. Method Returns Description 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. initFocusEvent Void Initializes attributes of a FocusEvent object. Sytaxis: object.initFocusEvent(type, canBubble, cancelable, view, detail, relatedTarget) 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. view AbstractView Required Identifies the AbstractView from which the event was generated. detail Number Required Specifies some detail information about the Event, depending on the type of event. relatedTarget Element Required Specifies FocusEvent.relatedTarget. This value may be null. initUIEvent * Void The initUIEvent method is used to initialize the value of a UIEvent object. Sytaxis: object.initUIEvent(type, canBubble, cancelable, view, 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. view Object Required Specifies view. This value may be null. detail Number Required Specifies detail. 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:

• focus
• blur
• DOMFocusIn
• DOMFocusOut