2362N/A * Copyright (c) 2000, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * A FocusTraversalPolicy which can optionally provide an algorithm for 0N/A * determining a JInternalFrame's initial Component. The initial Component is 0N/A * the first to receive focus when the JInternalFrame is first selected. By 0N/A * default, this is the same as the JInternalFrame's default Component to 0N/A * @author David Mendenhall 0N/A * Returns the Component that should receive the focus when a 0N/A * JInternalFrame is selected for the first time. Once the JInternalFrame 0N/A * has been selected by a call to <code>setSelected(true)</code>, the 0N/A * initial Component will not be used again. Instead, if the JInternalFrame 0N/A * loses and subsequently regains selection, or is made invisible or 0N/A * undisplayable and subsequently made visible and displayable, the 0N/A * JInternalFrame's most recently focused Component will become the focus 0N/A * owner. The default implementation of this method returns the 0N/A * JInternalFrame's default Component to focus. 0N/A * @param frame the JInternalFrame whose initial Component is to be 0N/A * @return the Component that should receive the focus when frame is 0N/A * selected for the first time, or null if no suitable Component 0N/A * @see JInternalFrame#getMostRecentFocusOwner 0N/A * @throws IllegalArgumentException if window is null