Package com.intellij.openapi.wm

Class FocusWatcher

java.lang.Object

com.intellij.openapi.wm.FocusWatcher

All Implemented Interfaces:

java.awt.event.ContainerListener, java.awt.event.FocusListener, java.util.EventListener

public class FocusWatcher
extends java.lang.Object
implements java.awt.event.ContainerListener, java.awt.event.FocusListener

Spies how focus goes in the component.

Constructor Summary

Constructors

Constructor and Description
FocusWatcher()

Method Summary

Modifier and Type	Method and Description
void	componentAdded(java.awt.event.ContainerEvent e)
void	componentRemoved(java.awt.event.ContainerEvent e)
void	deinstall(java.awt.Component component)
void	deinstall(java.awt.Component component, java.awt.AWTEvent cause)
protected void	focusedComponentChanged(java.awt.Component component, java.awt.AWTEvent cause) Override this method to get notifications about focus.
void	focusGained(java.awt.event.FocusEvent e)
void	focusLost(java.awt.event.FocusEvent e)
protected void	focusLostImpl(java.awt.event.FocusEvent e)
java.awt.Component	getFocusedComponent()
java.awt.Component	getNearestFocusableComponent()
java.awt.Component	getTopComponent()
void	install(java.awt.Component component)
protected boolean	isFocusedComponentChangeValid(java.awt.Component component, java.awt.AWTEvent cause)
void	setFocusedComponentImpl(java.awt.Component component)
void	setFocusedComponentImpl(java.awt.Component component, java.awt.AWTEvent cause)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FocusWatcher

public FocusWatcher()

Method Detail

getTopComponent

public java.awt.Component getTopComponent()

Returns:

top component on which focus watcher was installed. The method always return null if focus watcher was installed on some component hierarchy.

componentAdded

public final void componentAdded(java.awt.event.ContainerEvent e)

Specified by:

componentAdded in interface java.awt.event.ContainerListener

componentRemoved

public final void componentRemoved(java.awt.event.ContainerEvent e)

Specified by:

componentRemoved in interface java.awt.event.ContainerListener

deinstall

public final void deinstall(java.awt.Component component)

deinstall

public final void deinstall(java.awt.Component component,
                            java.awt.AWTEvent cause)

focusGained

public final void focusGained(java.awt.event.FocusEvent e)

Specified by:

focusGained in interface java.awt.event.FocusListener

focusLost

public final void focusLost(java.awt.event.FocusEvent e)

Specified by:

focusLost in interface java.awt.event.FocusListener

getFocusedComponent

public final java.awt.Component getFocusedComponent()

Returns:

last focused component or null.

getNearestFocusableComponent

public final java.awt.Component getNearestFocusableComponent()

install

public final void install(java.awt.Component component)

setFocusedComponentImpl

public void setFocusedComponentImpl(java.awt.Component component)

setFocusedComponentImpl

public void setFocusedComponentImpl(java.awt.Component component,
                                    java.awt.AWTEvent cause)

isFocusedComponentChangeValid

protected boolean isFocusedComponentChangeValid(java.awt.Component component,
                                                java.awt.AWTEvent cause)

focusedComponentChanged

protected void focusedComponentChanged(java.awt.Component component,
                                       java.awt.AWTEvent cause)

Override this method to get notifications about focus. FocusWatcher invokes this method each time one of the populated component gains focus. All "temporary" focus event are ignored.

Parameters:

component - currently focused component. The component can be null

cause -

focusLostImpl

protected void focusLostImpl(java.awt.event.FocusEvent e)