author | darcy |
Sun, 23 Mar 2014 13:49:48 -0700 | |
changeset 23697 | e556a715949f |
parent 5506 | 202f599c92aa |
child 25565 | ce603b34c98d |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2002, 2014, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package javax.swing.plaf.basic; |
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import java.lang.reflect.*; |
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import javax.swing.*; |
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import javax.swing.plaf.*; |
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/** |
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* An ActionMap that populates its contents as necessary. The |
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* contents are populated by invoking the <code>loadActionMap</code> |
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* method on the passed in Object. |
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* |
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* @author Scott Violet |
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*/ |
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@SuppressWarnings("serial") // Same-version serialization only |
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class LazyActionMap extends ActionMapUIResource { |
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/** |
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* Object to invoke <code>loadActionMap</code> on. This may be |
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* a Class object. |
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*/ |
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private transient Object _loader; |
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/** |
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* Installs an ActionMap that will be populated by invoking the |
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* <code>loadActionMap</code> method on the specified Class |
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* when necessary. |
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* <p> |
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* This should be used if the ActionMap can be shared. |
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* |
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* @param c JComponent to install the ActionMap on. |
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* @param loaderClass Class object that gets loadActionMap invoked |
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* on. |
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* @param defaultsKey Key to use to defaults table to check for |
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* existing map and what resulting Map will be registered on. |
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*/ |
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static void installLazyActionMap(JComponent c, Class loaderClass, |
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String defaultsKey) { |
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ActionMap map = (ActionMap)UIManager.get(defaultsKey); |
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if (map == null) { |
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map = new LazyActionMap(loaderClass); |
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UIManager.getLookAndFeelDefaults().put(defaultsKey, map); |
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} |
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SwingUtilities.replaceUIActionMap(c, map); |
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} |
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/** |
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* Returns an ActionMap that will be populated by invoking the |
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* <code>loadActionMap</code> method on the specified Class |
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* when necessary. |
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* <p> |
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* This should be used if the ActionMap can be shared. |
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* |
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* @param c JComponent to install the ActionMap on. |
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* @param loaderClass Class object that gets loadActionMap invoked |
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* on. |
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* @param defaultsKey Key to use to defaults table to check for |
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* existing map and what resulting Map will be registered on. |
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*/ |
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static ActionMap getActionMap(Class loaderClass, |
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String defaultsKey) { |
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ActionMap map = (ActionMap)UIManager.get(defaultsKey); |
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if (map == null) { |
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map = new LazyActionMap(loaderClass); |
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UIManager.getLookAndFeelDefaults().put(defaultsKey, map); |
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} |
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return map; |
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} |
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private LazyActionMap(Class loader) { |
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_loader = loader; |
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} |
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public void put(Action action) { |
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put(action.getValue(Action.NAME), action); |
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} |
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public void put(Object key, Action action) { |
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loadIfNecessary(); |
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super.put(key, action); |
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} |
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public Action get(Object key) { |
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loadIfNecessary(); |
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return super.get(key); |
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} |
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public void remove(Object key) { |
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loadIfNecessary(); |
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super.remove(key); |
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} |
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public void clear() { |
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loadIfNecessary(); |
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super.clear(); |
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} |
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public Object[] keys() { |
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loadIfNecessary(); |
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return super.keys(); |
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} |
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public int size() { |
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loadIfNecessary(); |
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return super.size(); |
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} |
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public Object[] allKeys() { |
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loadIfNecessary(); |
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return super.allKeys(); |
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} |
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public void setParent(ActionMap map) { |
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loadIfNecessary(); |
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super.setParent(map); |
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} |
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private void loadIfNecessary() { |
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if (_loader != null) { |
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Object loader = _loader; |
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_loader = null; |
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1290
da8902cd496c
6727661: Code improvement and warnings removing from the swing/plaf packages
rupashka
parents:
2
diff
changeset
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Class<?> klass = (Class<?>)loader; |
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try { |
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Method method = klass.getDeclaredMethod("loadActionMap", |
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new Class[] { LazyActionMap.class }); |
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method.invoke(klass, new Object[] { this }); |
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} catch (NoSuchMethodException nsme) { |
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assert false : "LazyActionMap unable to load actions " + |
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klass; |
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} catch (IllegalAccessException iae) { |
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assert false : "LazyActionMap unable to load actions " + |
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iae; |
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} catch (InvocationTargetException ite) { |
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assert false : "LazyActionMap unable to load actions " + |
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ite; |
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} catch (IllegalArgumentException iae) { |
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assert false : "LazyActionMap unable to load actions " + |
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iae; |
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} |
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} |
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} |
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} |