components/visual-panels/core/src/java/util/com/oracle/solaris/vp/util/swing/glass/BlockingGlassPane.java
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved.
*/
package com.oracle.solaris.vp.util.swing.glass;
import java.awt.*;
import java.awt.event.*;
@SuppressWarnings({"serial"})
public class BlockingGlassPane extends SimpleGlassPane {
//
// Static data
//
public static final KeyListener LISTENER_CONSUME_KEY =
new KeyAdapter() {
@Override
public void keyPressed(KeyEvent e) {
e.consume();
}
};
public static final MouseListener LISTENER_CONSUME_MOUSE =
new MouseAdapter() {
@Override
public void mousePressed(MouseEvent e) {
e.consume();
}
};
//
// Instance data
//
private Component prevFocusComp;
private boolean restoreFocus = true;
//
// Constructors
//
public BlockingGlassPane() {
prepareBlockingGlassPane(this);
setFocusCycleRoot(true);
}
/**
* Create an instance of this object.
*
* @param restoreFocus A value of true indicates component focus should be
* restored when invoking {@link #componentHidden}.
*/
public BlockingGlassPane(boolean restoreFocus) {
this();
this.restoreFocus = restoreFocus;
}
//
// SimpleGlassPane methods
//
@Override
public void componentHidden() {
super.componentHidden();
Component comp = prevFocusComp;
if (comp != null) {
comp.requestFocusInWindow();
}
}
@Override
public void componentShown() {
super.componentShown();
if (restoreFocus) {
prevFocusComp = KeyboardFocusManager.
getCurrentKeyboardFocusManager().getFocusOwner();
}
requestFocusInWindow();
}
//
// Static methods
//
public static void addConsumeEventListeners(Component c) {
// Make sure listeners are only added once
removeConsumeEventListeners(c);
c.addKeyListener(LISTENER_CONSUME_KEY);
c.addMouseListener(LISTENER_CONSUME_MOUSE);
}
public static void prepareBlockingGlassPane(Component glassPane) {
addConsumeEventListeners(glassPane);
glassPane.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
}
public static void removeConsumeEventListeners(Component c) {
c.removeKeyListener(LISTENER_CONSUME_KEY);
c.removeMouseListener(LISTENER_CONSUME_MOUSE);
}
}