| /* |
| * Copyright (c) 2000, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package javax.swing; |
| |
| |
| import java.awt.Component; |
| import java.awt.FocusTraversalPolicy; |
| |
| /** |
| * A FocusTraversalPolicy which can optionally provide an algorithm for |
| * determining a JInternalFrame's initial Component. The initial Component is |
| * the first to receive focus when the JInternalFrame is first selected. By |
| * default, this is the same as the JInternalFrame's default Component to |
| * focus. |
| * |
| * @author David Mendenhall |
| * |
| * @since 1.4 |
| */ |
| public abstract class InternalFrameFocusTraversalPolicy |
| extends FocusTraversalPolicy |
| { |
| |
| /** |
| * Returns the Component that should receive the focus when a |
| * JInternalFrame is selected for the first time. Once the JInternalFrame |
| * has been selected by a call to <code>setSelected(true)</code>, the |
| * initial Component will not be used again. Instead, if the JInternalFrame |
| * loses and subsequently regains selection, or is made invisible or |
| * undisplayable and subsequently made visible and displayable, the |
| * JInternalFrame's most recently focused Component will become the focus |
| * owner. The default implementation of this method returns the |
| * JInternalFrame's default Component to focus. |
| * |
| * @param frame the JInternalFrame whose initial Component is to be |
| * returned |
| * @return the Component that should receive the focus when frame is |
| * selected for the first time, or null if no suitable Component |
| * can be found |
| * @see JInternalFrame#getMostRecentFocusOwner |
| * @throws IllegalArgumentException if window is null |
| */ |
| public Component getInitialComponent(JInternalFrame frame) { |
| return getDefaultComponent(frame); |
| } |
| } |