/*
* Copyright (c) 2002, 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
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*/
package swingjs.plaf;
import jsjavax.swing.Action;
import jsjavax.swing.ActionMap;
import jsjavax.swing.JComponent;
import jsjavax.swing.SwingUtilities;
import jsjavax.swing.UIManager;
import jsjavax.swing.plaf.ActionMapUIResource;
/**
* An ActionMap that populates its contents as necessary. The
* contents are populated by invoking the loadActionMap
* method on the passed in Object.
*
* @author Scott Violet
*/
class LazyActionMap extends ActionMapUIResource {
/**
* Object to invoke loadActionMap
on. This may be
* a Class object.
*/
private transient Object _loader;
/**
* Installs an ActionMap that will be populated by invoking the
* loadActionMap
method on the specified Class
* when necessary.
*
* This should be used if the ActionMap can be shared.
*
* @param c JComponent to install the ActionMap on.
* @param loaderClass Class object that gets loadActionMap invoked
* on.
* @param defaultsKey Key to use to defaults table to check for
* existing map and what resulting Map will be registered on.
*/
static void installLazyActionMap(JComponent c, Class loaderClass,
String defaultsKey) {
ActionMap map = (ActionMap)UIManager.get(defaultsKey);
if (map == null) {
map = new LazyActionMap(loaderClass);
// UIManager.getLookAndFeelDefaults().put(defaultsKey, map);
}
SwingUtilities.replaceUIActionMap(c, map);
}
/**
* Returns an ActionMap that will be populated by invoking the
* loadActionMap
method on the specified Class
* when necessary.
*
* This should be used if the ActionMap can be shared. * * @param c JComponent to install the ActionMap on. * @param loaderClass Class object that gets loadActionMap invoked * on. * @param defaultsKey Key to use to defaults table to check for * existing map and what resulting Map will be registered on. */ static ActionMap getActionMap(Class loaderClass, String defaultsKey) { ActionMap map = (ActionMap)UIManager.get(defaultsKey); if (map == null) { map = new LazyActionMap(loaderClass); //SwingJS temp UIManager.getLookAndFeelDefaults().put(defaultsKey, map); } return map; } private LazyActionMap(Class loader) { _loader = loader; } public void put(Action action) { put(action.getValue(Action.NAME), action); } public void put(Object key, Action action) { loadIfNecessary(); super.put(key, action); } public Action get(Object key) { loadIfNecessary(); return super.get(key); } public void remove(Object key) { loadIfNecessary(); super.remove(key); } public void clear() { loadIfNecessary(); super.clear(); } public Object[] keys() { loadIfNecessary(); return super.keys(); } public int size() { loadIfNecessary(); return super.size(); } public Object[] allKeys() { loadIfNecessary(); return super.allKeys(); } public void setParent(ActionMap map) { loadIfNecessary(); super.setParent(map); } private void loadIfNecessary() { if (_loader != null) { /** * @j2sNative * * this._loader.loadActionMap(this); * this._loader = null; */ {} // Object loader = _loader; // // _loader = null; // Class klass = (Class)loader; // try { // Method method = klass.getDeclaredMethod("loadActionMap", // new Class[] { LazyActionMap.class }); // method.invoke(klass, new Object[] { this }); // } catch (NoSuchMethodException nsme) { // assert false : "LazyActionMap unable to load actions " + // klass; // } catch (IllegalAccessException iae) { // assert false : "LazyActionMap unable to load actions " + // iae; // } catch (InvocationTargetException ite) { // assert false : "LazyActionMap unable to load actions " + // ite; // } catch (IllegalArgumentException iae) { // assert false : "LazyActionMap unable to load actions " + // iae; // } } } }