jdk.awt.event.FocusEvent — clojure-interop/java.awt 1.0.5

A low-level event which indicates that a Component has gained or lost the input focus. This low-level event is generated by a Component (such as a TextField). The event is passed to every FocusListener or FocusAdapter object which registered to receive such events using the Component's addFocusListener method. ( FocusAdapter objects implement the FocusListener interface.) Each such listener object gets this FocusEvent when the event occurs.

There are two levels of focus events: permanent and temporary. Permanent focus change events occur when focus is directly moved from one Component to another, such as through a call to requestFocus() or as the user uses the TAB key to traverse Components. Temporary focus change events occur when focus is temporarily lost for a Component as the indirect result of another operation, such as Window deactivation or a Scrollbar drag. In this case, the original focus state will automatically be restored once that operation is finished, or, for the case of Window deactivation, when the Window is reactivated. Both permanent and temporary focus events are delivered using the FOCUS_GAINED and FOCUS_LOST event ids; the level may be distinguished in the event using the isTemporary() method.

An unspecified behavior will be caused if the id parameter of any particular FocusEvent instance is not in the range from FOCUS_FIRST to FOCUS_LAST.

*-focus-first clj

Static Constant.

The first number in the range of ids used for focus events.

type: int

*-focus-gained clj

Static Constant.

This event indicates that the Component is now the focus owner.

type: int

*-focus-last clj

Static Constant.

The last number in the range of ids used for focus events.

type: int

*-focus-lost clj

Static Constant.

This event indicates that the Component is no longer the focus owner.

type: int

->focus-event clj

(->focus-event source id)

(->focus-event source id temporary)

(->focus-event source id temporary opposite)

Constructor.

Constructs a FocusEvent object with the specified temporary state and opposite Component. The opposite Component is the other Component involved in this focus change. For a FOCUS_GAINED event, this is the Component that lost focus. For a FOCUS_LOST event, this is the Component that gained focus. If this focus change occurs with a native application, with a Java application in a different VM, or with no other Component, then the opposite Component is null. This method throws an IllegalArgumentException if source is null.

source - The Component that originated the event - java.awt.Component id - An integer indicating the type of event. For information on allowable values, see the class description for FocusEvent - int temporary - Equals true if the focus change is temporary; false otherwise - boolean opposite - The other Component involved in the focus change, or null - java.awt.Component

throws: java.lang.IllegalArgumentException - if source equals null

get-opposite-component clj

(get-opposite-component this)

Returns the other Component involved in this focus change. For a FOCUS_GAINED event, this is the Component that lost focus. For a FOCUS_LOST event, this is the Component that gained focus. If this focus change occurs with a native application, with a Java application in a different VM or context, or with no other Component, then null is returned.

returns: the other Component involved in the focus change, or null - java.awt.Component

param-string clj

(param-string this)

Returns a parameter string identifying this event. This method is useful for event-logging and for debugging.

returns: a string identifying the event and its attributes - java.lang.String

temporary? clj

(temporary? this)

Identifies the focus change event as temporary or permanent.

returns: true if the focus change is temporary; false otherwise - boolean