package com.tagtraum.perf.gcviewer.util;
import javax.swing.Action;
import java.awt.Image;
import java.awt.Window;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Handles Mac OS X specific stuff.
*
* @author <a href="mailto:johan@kaving.se">Johan Kaving</a>
*/
public class OSXSupport {
private static final Logger LOGGER = Logger.getLogger(OSXSupport.class.getName());
private static Object application = null;
/**
* Initializes various Mac OS X adaptations, using reflection and proxies
* in order to be compilable on other platforms.
*
* @param aboutAction the action to use for the About menu item
* @param quitAction the action to use for the Quit menu item
* @param iconImage the icon image to use for the dock
* @param fullScreenableWindow the window that should be full screen enabled
*/
public static void initializeMacOSX(Action aboutAction,
Action quitAction,
Action preferencesAction,
Image iconImage,
Window fullScreenableWindow) {
try {
if ( ! isOSX()) {
return;
}
// Determine whether we should use the new eAWT API or
// the old API (via the OSXAdapter class provided by Apple)
if (isOSXNewEAWT()) {
// Handle the system About menu item
if (aboutAction != null) {
addOSXHandler("com.apple.eawt.AboutHandler",
"handleAbout",
"setAboutHandler",
aboutAction);
}
// Handle the system Quit menu item
if (quitAction != null) {
addOSXHandler("com.apple.eawt.QuitHandler",
"handleQuitRequestWith",
"setQuitHandler",
quitAction);
}
// Handle the system Preferences menu item
addOSXHandler("com.apple.eawt.PreferencesHandler",
"handlePreferences",
"setPreferencesHandler",
preferencesAction);
if (hasOSXFullScreenSupport()) {
// Enable Mac OS X Lion full screen support
Class.forName("com.apple.eawt.FullScreenUtilities").getDeclaredMethod("setWindowCanFullScreen", Window.class, Boolean.TYPE).invoke(null, fullScreenableWindow, true);
}
} else {
// Use the old OSXAdapter class
OSXAdapter.setQuitHandler(quitAction, quitAction.getClass().getDeclaredMethod("quit", (Class[]) null));
OSXAdapter.setAboutHandler(aboutAction, aboutAction.getClass().getDeclaredMethod("about", (Class[])null));
}
// Use the screen menu bar instead of the window menu bar
System.setProperty("apple.laf.useScreenMenuBar", "true");
// Set the dock icon image
if (iconImage != null) {
Object application = getOSXApplication();
Method setDockIconImageMethod = application.getClass().getMethod("setDockIconImage", Image.class);
setDockIconImageMethod.invoke(application, iconImage);
}
} catch (Exception e) {
LoggerHelper.logException(LOGGER, Level.SEVERE, "Failed to perform OS X initialization", e);
}
}
/**
* Adds an OS X handler to the application
*
* @param handlerClassName the class name of the handler to add
* @param handlerMethodName the name of the method that is called on the handler when invoked
* @param handlerSetterMethodName the name of the method used to set the handler
* @param action the action to perform when the handler is invoked
*/
public static void addOSXHandler(String handlerClassName,
final String handlerMethodName,
String handlerSetterMethodName,
final Action action) {
try {
Object application = getOSXApplication();
Class<?> handlerClass = Class.forName(handlerClassName);
if (action != null) {
Object aboutHandlerProxy =
Proxy.newProxyInstance(OSXSupport.class.getClassLoader(),
new Class[]{handlerClass},
new InvocationHandler() {
@Override
public Object invoke(Object o, Method method, Object[] args) throws Throwable {
if (method.getName().equals(handlerMethodName)) {
action.actionPerformed(null);
}
return null;
}
});
application.getClass().getMethod(handlerSetterMethodName, handlerClass).invoke(application, aboutHandlerProxy);
} else {
application.getClass().getMethod(handlerSetterMethodName, handlerClass).invoke(application, (Object) null);
}
} catch (Exception e) {
LoggerHelper.logException(LOGGER, Level.SEVERE, "addOSXHandler() failed", e);
}
}
/**
* Get an Apple eAWT Application object
*
* @return an Application object
*/
public static Object getOSXApplication() {
if (application == null) {
try {
Class<?> applicationClass = Class.forName("com.apple.eawt.Application");
Method method = applicationClass.getMethod("getApplication");
application = method.invoke(applicationClass);
} catch (Exception e) {
LoggerHelper.logException(LOGGER, Level.SEVERE, "getOSXApplication() failed", e);
}
}
return application;
}
/**
* Determine whether we are running on MAC OS X or not
* @return <code>true</code> if is running on MAC OS X
*/
public static boolean isOSX() {
String osName = System.getProperty("os.name");
if ( ! osName.startsWith("Mac OS X")) {
return false;
}
return true;
}
/**
* A new version of Apple's eAWT was introduced in
* Java for Mac OS X 10.6 Update 3 and 10.5 Update 8.
* This determines whether we are running with the new
* or the old version of eAWT.
*
* Which Java version corresponds to which Java for Mac OS X
* update can be found in Apple's:
* "Technical Note TN2110 - Identifying Java on Mac OS X"
* @see <a href="https://developer.apple.com/library/mac/#technotes/tn2002/tn2110.html">Technical Note TN2110</a>
*
* @return true if we are running on OS X with the new eAWT
*/
public static boolean isOSXNewEAWT() {
if (!isOSX()) {
return false;
}
String javaVersion = System.getProperty("java.version");
String[] fragments = javaVersion.split("\\.");
// sanity check the "1." part of the version
if (!fragments[0].equals("1")) return false;
if (fragments.length < 2) return false;
try {
int minorVers = Integer.parseInt(fragments[1]);
String[] updateFragments = fragments[2].split("_");
if (minorVers == 5) {
if (Integer.parseInt(updateFragments[1]) >= 26) {
return true;
}
}
if (minorVers == 6) {
if (Integer.parseInt(updateFragments[1]) >= 22) {
return true;
}
}
if (minorVers >= 7) {
return true;
}
} catch (NumberFormatException e) {
// was not an integer
LoggerHelper.logException(LOGGER, Level.FINE, "minorVers or updateFragments was not a number", e);
}
return false;
}
/**
* Mac OS X Lion full screen support was added in
* Java for Mac OS X 10.7 Update 1 and 10.6 Update 6.
* This determines whether we are running on a version
* with Lion full screen support.
*
* Which Java version corresponds to which Java for Mac OS X
* update can be found in Apple's:
* "Technical Note TN2110 - Identifying Java on Mac OS X"
* @see <a href="https://developer.apple.com/library/mac/#technotes/tn2002/tn2110.html">Technical Note TN2110</a>
*
* @return true if we are running on OS X with the new eAWT
*/
public static boolean hasOSXFullScreenSupport() {
if (!isOSX()) {
return false;
}
String javaVersion = System.getProperty("java.version");
String[] fragments = javaVersion.split("\\.");
// sanity check the "1." part of the version
if (!fragments[0].equals("1")) return false;
if (fragments.length < 2) return false;
try {
int minorVers = Integer.parseInt(fragments[1]);
String[] updateFragments = fragments[2].split("_");
if (minorVers == 6) {
if (Integer.parseInt(updateFragments[1]) >= 29) {
return true;
}
}
if (minorVers >= 7) {
return true;
}
} catch (NumberFormatException e) {
// was not an integer
LoggerHelper.logException(LOGGER, Level.FINE, "minorVers or updateFragments was not a number", e);
}
return false;
}
}