pollymc/launcher/org/simplericity/macify/eawt/DefaultApplication.java

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package org.simplericity.macify.eawt;
/*
* Copyright 2007 Eirik Bjorsnos.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.*;
import java.lang.reflect.*;
import java.net.URL;
import java.net.URLClassLoader;
import java.net.MalformedURLException;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
/**
* Implements Application by calling the Mac OS X API through reflection.
* If this class is used on a non-OS X platform the operations will have no effect or they will simulate
* what the Apple API would do for those who manipulate state. ({@link #setEnabledAboutMenu(boolean)} etc.)
*/
@SuppressWarnings("unchecked")
public class DefaultApplication implements Application {
private Object application;
private Class applicationListenerClass;
Map listenerMap = Collections.synchronizedMap(new HashMap<Object, Object>());
private boolean enabledAboutMenu = true;
private boolean enabledPreferencesMenu;
private boolean aboutMenuItemPresent = true;
private boolean preferencesMenuItemPresent;
private ClassLoader classLoader;
public DefaultApplication() {
try {
final File file = new File("/System/Library/Java");
if (file.exists()) {
ClassLoader scl = ClassLoader.getSystemClassLoader();
Class clc = scl.getClass();
if (URLClassLoader.class.isAssignableFrom(clc)) {
Method addUrl = URLClassLoader.class.getDeclaredMethod("addURL", new Class[]{URL.class});
addUrl.setAccessible(true);
addUrl.invoke(scl, new Object[]{file.toURI().toURL()});
}
}
Class appClass = Class.forName("com.apple.eawt.Application");
application = appClass.getMethod("getApplication", new Class[0]).invoke(null, new Object[0]);
applicationListenerClass = Class.forName("com.apple.eawt.ApplicationListener");
} catch (ClassNotFoundException e) {
application = null;
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
} catch (NoSuchMethodException e) {
throw new RuntimeException(e);
} catch (InvocationTargetException e) {
throw new RuntimeException(e);
} catch (MalformedURLException e) {
throw new RuntimeException(e);
}
}
public boolean isMac() {
return application != null;
}
public void addAboutMenuItem() {
if (isMac()) {
callMethod(application, "addAboutMenuItem");
} else {
this.aboutMenuItemPresent = true;
}
}
public void addApplicationListener(ApplicationListener applicationListener) {
if (!Modifier.isPublic(applicationListener.getClass().getModifiers())) {
throw new IllegalArgumentException("ApplicationListener must be a public class");
}
if (isMac()) {
Object listener = Proxy.newProxyInstance(getClass().getClassLoader(),
new Class[]{applicationListenerClass},
new ApplicationListenerInvocationHandler(applicationListener));
callMethod(application, "addApplicationListener", new Class[]{applicationListenerClass}, new Object[]{listener});
listenerMap.put(applicationListener, listener);
} else {
listenerMap.put(applicationListener, applicationListener);
}
}
public void addPreferencesMenuItem() {
if (isMac()) {
callMethod("addPreferencesMenuItem");
} else {
this.preferencesMenuItemPresent = true;
}
}
public boolean getEnabledAboutMenu() {
if (isMac()) {
return callMethod("getEnabledAboutMenu").equals(Boolean.TRUE);
} else {
return enabledAboutMenu;
}
}
public boolean getEnabledPreferencesMenu() {
if (isMac()) {
Object result = callMethod("getEnabledPreferencesMenu");
return result.equals(Boolean.TRUE);
} else {
return enabledPreferencesMenu;
}
}
public Point getMouseLocationOnScreen() {
if (isMac()) {
try {
Method method = application.getClass().getMethod("getMouseLocationOnScreen", new Class[0]);
return (Point) method.invoke(null, new Object[0]);
} catch (NoSuchMethodException e) {
throw new RuntimeException(e);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
} catch (InvocationTargetException e) {
throw new RuntimeException(e);
}
} else {
return new Point(0, 0);
}
}
public boolean isAboutMenuItemPresent() {
if (isMac()) {
return callMethod("isAboutMenuItemPresent").equals(Boolean.TRUE);
} else {
return aboutMenuItemPresent;
}
}
public boolean isPreferencesMenuItemPresent() {
if (isMac()) {
return callMethod("isPreferencesMenuItemPresent").equals(Boolean.TRUE);
} else {
return this.preferencesMenuItemPresent;
}
}
public void removeAboutMenuItem() {
if (isMac()) {
callMethod("removeAboutMenuItem");
} else {
this.aboutMenuItemPresent = false;
}
}
public synchronized void removeApplicationListener(ApplicationListener applicationListener) {
if (isMac()) {
Object listener = listenerMap.get(applicationListener);
callMethod(application, "removeApplicationListener", new Class[]{applicationListenerClass}, new Object[]{listener});
}
listenerMap.remove(applicationListener);
}
public void removePreferencesMenuItem() {
if (isMac()) {
callMethod("removeAboutMenuItem");
} else {
this.preferencesMenuItemPresent = false;
}
}
public void setEnabledAboutMenu(boolean enabled) {
if (isMac()) {
callMethod(application, "setEnabledAboutMenu", new Class[]{Boolean.TYPE}, new Object[]{Boolean.valueOf(enabled)});
} else {
this.enabledAboutMenu = enabled;
}
}
public void setEnabledPreferencesMenu(boolean enabled) {
if (isMac()) {
callMethod(application, "setEnabledPreferencesMenu", new Class[]{Boolean.TYPE}, new Object[]{Boolean.valueOf(enabled)});
} else {
this.enabledPreferencesMenu = enabled;
}
}
public int requestUserAttention(int type) {
if (type != REQUEST_USER_ATTENTION_TYPE_CRITICAL && type != REQUEST_USER_ATTENTION_TYPE_INFORMATIONAL) {
throw new IllegalArgumentException("Requested user attention type is not allowed: " + type);
}
try {
Object application = getNSApplication();
Field critical = application.getClass().getField("UserAttentionRequestCritical");
Field informational = application.getClass().getField("UserAttentionRequestInformational");
Field actual = type == REQUEST_USER_ATTENTION_TYPE_CRITICAL ? critical : informational;
return ((Integer) application.getClass().getMethod("requestUserAttention", new Class[]{Integer.TYPE}).invoke(application, new Object[]{actual.get(null)})).intValue();
} catch (ClassNotFoundException e) {
return -1;
} catch (NoSuchMethodException e) {
throw new RuntimeException(e);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
} catch (InvocationTargetException e) {
throw new RuntimeException(e);
} catch (NoSuchFieldException e) {
throw new RuntimeException(e);
}
}
public void cancelUserAttentionRequest(int request) {
try {
Object application = getNSApplication();
application.getClass().getMethod("cancelUserAttentionRequest", new Class[]{Integer.TYPE}).invoke(application, new Object[]{new Integer(request)});
} catch (ClassNotFoundException e) {
// Nada
} catch (NoSuchMethodException e) {
throw new RuntimeException(e);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
} catch (InvocationTargetException e) {
throw new RuntimeException(e);
}
}
private Object getNSApplication() throws ClassNotFoundException {
try {
Class applicationClass = Class.forName("com.apple.cocoa.application.NSApplication");
return applicationClass.getMethod("sharedApplication", new Class[0]).invoke(null, new Object[0]);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
} catch (InvocationTargetException e) {
throw new RuntimeException(e);
} catch (NoSuchMethodException e) {
throw new RuntimeException(e);
}
}
public void setApplicationIconImage(BufferedImage image) {
if (isMac()) {
try {
Method setDockIconImage = application.getClass().getMethod("setDockIconImage", Image.class);
try {
setDockIconImage.invoke(application, image);
} catch (IllegalAccessException e) {
} catch (InvocationTargetException e) {
}
} catch (NoSuchMethodException mnfe) {
ByteArrayOutputStream stream = new ByteArrayOutputStream();
try {
ImageIO.write(image, "png", stream);
} catch (IOException e) {
throw new RuntimeException(e);
}
try {
Class nsDataClass = Class.forName("com.apple.cocoa.foundation.NSData");
Constructor constructor = nsDataClass.getConstructor(new Class[]{new byte[0].getClass()});
Object nsData = constructor.newInstance(new Object[]{stream.toByteArray()});
Class nsImageClass = Class.forName("com.apple.cocoa.application.NSImage");
Object nsImage = nsImageClass.getConstructor(new Class[]{nsDataClass}).newInstance(new Object[]{nsData});
Object application = getNSApplication();
application.getClass().getMethod("setApplicationIconImage", new Class[]{nsImageClass}).invoke(application, new Object[]{nsImage});
} catch (ClassNotFoundException e) {
} catch (NoSuchMethodException e) {
throw new RuntimeException(e);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
} catch (InvocationTargetException e) {
throw new RuntimeException(e);
} catch (InstantiationException e) {
throw new RuntimeException(e);
}
}
}
}
public BufferedImage getApplicationIconImage() {
if (isMac()) {
try {
Method getDockIconImage = application.getClass().getMethod("getDockIconImage");
try {
return (BufferedImage) getDockIconImage.invoke(application);
} catch (IllegalAccessException e) {
} catch (InvocationTargetException e) {
}
} catch (NoSuchMethodException nsme) {
try {
Class nsDataClass = Class.forName("com.apple.cocoa.foundation.NSData");
Class nsImageClass = Class.forName("com.apple.cocoa.application.NSImage");
Object application = getNSApplication();
Object nsImage = application.getClass().getMethod("applicationIconImage", new Class[0]).invoke(application, new Object[0]);
Object nsData = nsImageClass.getMethod("TIFFRepresentation", new Class[0]).invoke(nsImage, new Object[0]);
Integer length = (Integer) nsDataClass.getMethod("length", new Class[0]).invoke(nsData, new Object[0]);
byte[] bytes = (byte[]) nsDataClass.getMethod("bytes", new Class[]{Integer.TYPE, Integer.TYPE}).invoke(nsData, new Object[]{Integer.valueOf(0), length});
BufferedImage image = ImageIO.read(new ByteArrayInputStream(bytes));
return image;
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
throw new RuntimeException(e);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
} catch (InvocationTargetException e) {
throw new RuntimeException(e);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}
return null;
}
private Object callMethod(String methodname) {
return callMethod(application, methodname, new Class[0], new Object[0]);
}
private Object callMethod(Object object, String methodname) {
return callMethod(object, methodname, new Class[0], new Object[0]);
}
private Object callMethod(Object object, String methodname, Class[] classes, Object[] arguments) {
try {
if (classes == null) {
classes = new Class[arguments.length];
for (int i = 0; i < classes.length; i++) {
classes[i] = arguments[i].getClass();
}
}
Method addListnerMethod = object.getClass().getMethod(methodname, classes);
return addListnerMethod.invoke(object, arguments);
} catch (NoSuchMethodException e) {
throw new RuntimeException(e);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
} catch (InvocationTargetException e) {
throw new RuntimeException(e);
}
}
class ApplicationListenerInvocationHandler implements InvocationHandler {
private ApplicationListener applicationListener;
ApplicationListenerInvocationHandler(ApplicationListener applicationListener) {
this.applicationListener = applicationListener;
}
public Object invoke(Object object, Method appleMethod, Object[] objects) throws Throwable {
ApplicationEvent event = createApplicationEvent(objects[0]);
try {
Method method = applicationListener.getClass().getMethod(appleMethod.getName(), new Class[]{ApplicationEvent.class});
return method.invoke(applicationListener, new Object[]{event});
} catch (NoSuchMethodException e) {
if (appleMethod.getName().equals("equals") && objects.length == 1) {
return Boolean.valueOf(object == objects[0]);
}
return null;
}
}
}
private ApplicationEvent createApplicationEvent(final Object appleApplicationEvent) {
return (ApplicationEvent) Proxy.newProxyInstance(getClass().getClassLoader(), new Class[]{ApplicationEvent.class}, new InvocationHandler() {
public Object invoke(Object o, Method method, Object[] objects) throws Throwable {
return appleApplicationEvent.getClass().getMethod(method.getName(), method.getParameterTypes()).invoke(appleApplicationEvent, objects);
}
});
}
}