| /* |
| * Copyright (c) 2003, 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 sun.swing; |
| |
| import java.beans.PropertyChangeListener; |
| |
| import javax.swing.Action; |
| |
| /** |
| * UIAction is the basis of all of basic's action classes that are used in |
| * an ActionMap. Subclasses need to override <code>actionPerformed</code>. |
| * <p> |
| * A typical subclass will look like: |
| * <pre> |
| * private static class Actions extends UIAction { |
| * Actions(String name) { |
| * super(name); |
| * } |
| * |
| * public void actionPerformed(ActionEvent ae) { |
| * if (getName() == "selectAll") { |
| * selectAll(); |
| * } |
| * else if (getName() == "cancelEditing") { |
| * cancelEditing(); |
| * } |
| * } |
| * } |
| * </pre> |
| * <p> |
| * Subclasses that wish to conditionalize the enabled state should override |
| * <code>isEnabled(Component)</code>, and be aware that the passed in |
| * <code>Component</code> may be null. |
| * |
| * @see javax.swing.Action |
| * @author Scott Violet |
| */ |
| public abstract class UIAction implements Action { |
| private String name; |
| |
| public UIAction(String name) { |
| this.name = name; |
| } |
| |
| public final String getName() { |
| return name; |
| } |
| |
| public Object getValue(String key) { |
| if (key == NAME) { |
| return name; |
| } |
| return null; |
| } |
| |
| // UIAction is not mutable, this does nothing. |
| public void putValue(String key, Object value) { |
| } |
| |
| // UIAction is not mutable, this does nothing. |
| public void setEnabled(boolean b) { |
| } |
| |
| /** |
| * Cover method for <code>isEnabled(null)</code>. |
| */ |
| public final boolean isEnabled() { |
| return accept(null); |
| } |
| |
| /** |
| * Subclasses that need to conditionalize the enabled state should |
| * override this. Be aware that <code>sender</code> may be null. |
| * |
| * @param sender Widget enabled state is being asked for, may be null. |
| */ |
| @Override |
| public boolean accept(Object sender) { |
| return true; |
| } |
| |
| // UIAction is not mutable, this does nothing. |
| public void addPropertyChangeListener(PropertyChangeListener listener) { |
| } |
| |
| // UIAction is not mutable, this does nothing. |
| public void removePropertyChangeListener(PropertyChangeListener listener) { |
| } |
| } |