112 lines
3.4 KiB
Java
112 lines
3.4 KiB
Java
/*
|
|
* 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 com.sun.java.swing.ExtendedAction
|
|
* @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 isEnabled(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.
|
|
*/
|
|
public boolean isEnabled(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) {
|
|
}
|
|
}
|