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/*
* 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.apache.knox.gateway.shell.commands;
import java.awt.Component;
import java.awt.Window;
import java.awt.event.HierarchyEvent;
import java.awt.event.HierarchyListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.SwingUtilities;
import javax.swing.text.JTextComponent;
public class SwingUtils {
// JDK-5018574 : Unable to set focus to another component in JOptionPane
public static void workAroundFocusIssue(JTextComponent field) {
field.addHierarchyListener(new HierarchyListener() {
@Override
public void hierarchyChanged(HierarchyEvent e) {
final Component c = e.getComponent();
if (c.isShowing() && (e.getChangeFlags() &
HierarchyEvent.SHOWING_CHANGED) != 0) {
Window toplevel = SwingUtilities.getWindowAncestor(c);
toplevel.addWindowFocusListener(new WindowAdapter() {
@Override
public void windowGainedFocus(WindowEvent e) {
c.requestFocus();
}
});
}
}
});
}
}