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The source code/* * Sun Public License Notice * * The contents of this file are subject to the Sun Public License * Version 1.0 (the "License"). You may not use this file except in * compliance with the License. A copy of the License is available at * http://www.sun.com/ * * The Original Code is NetBeans. The Initial Developer of the Original * Code is Sun Microsystems, Inc. Portions Copyright 1997-2003 Sun * Microsystems, Inc. All Rights Reserved. */ package org.netbeans.editor.ext; import java.awt.Component; import java.awt.KeyboardFocusManager; import java.awt.event.KeyListener; import java.awt.event.KeyEvent; import java.util.LinkedList; import javax.swing.text.JTextComponent; /** * * @author Dusan Balek */ public class KeyEventBlocker implements KeyListener { private LinkedList blockedEvents = new LinkedList(); private JTextComponent component; private boolean discardKeyTyped = true; public KeyEventBlocker(JTextComponent component, boolean discardFirstKeyTypedEvent) { this.component = component; this.discardKeyTyped = discardFirstKeyTypedEvent; this.component.addKeyListener(this); } /** Has to be called from AWT event thread to be properly synchronized */ public void stopBlocking() { this.component.removeKeyListener(this); KeyboardFocusManager kfm = KeyboardFocusManager.getCurrentKeyboardFocusManager(); while(!blockedEvents.isEmpty()) { KeyEvent e = (KeyEvent)blockedEvents.removeFirst(); e = new KeyEvent((Component)e.getSource(), e.getID(), e.getWhen(), e.getModifiers(), e.getKeyCode(), e.getKeyChar(), e.getKeyLocation()); kfm.dispatchEvent(e); } } public void keyPressed(KeyEvent e) { e.consume(); blockedEvents.add(e); } public void keyReleased(KeyEvent e) { e.consume(); blockedEvents.add(e); } public void keyTyped(KeyEvent e) { e.consume(); if (discardKeyTyped) { discardKeyTyped = false; } else { blockedEvents.add(e); } } } |
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