webcommon/javascript2.editor/src/org/netbeans/modules/javascript2/editor/ui/NumericKeyListener.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.netbeans.modules.javascript2.editor.ui;

import java.awt.Component;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;

/**
 *
 * @author Petr Pisl
 */
public class NumericKeyListener implements KeyListener {

    public NumericKeyListener() {
    }
    @Override
    public void keyPressed(KeyEvent evt) {
    }

    @Override
    public void keyReleased(KeyEvent evt) {
    }

    @Override
    public void keyTyped(KeyEvent evt) {
        if (!Character.isDigit(evt.getKeyChar()) && !Character.isISOControl(evt.getKeyChar())) {
            evt.consume();
            Component c = evt.getComponent();
            if (c != null) {
                c.getToolkit().beep();
            }
        }
    }
}