/**
* Constructor.
*
* @throws Exception if any error occurs.
*/
public GUIMacOSX() throws Exception {
// Name for the dock icon and the application menu
System.setProperty(P_ABOUT_NAME, NAME);
// Show menu in the screen menu instead of inside the application window
System.setProperty(P_SCREEN_MENU_BAR, "true");
// load native java classes...
appClass = Class.forName(C_APPLICATION);
appObj = invoke(appClass, null, "getApplication", EC, EO);
Class.forName(C_APPLICATION_EVENT);
if (appObj != null) {
invoke("addAboutMenuItem");
invoke("setEnabledAboutMenu", true);
invoke("addPreferencesMenuItem");
invoke("setEnabledPreferencesMenu", true);
addDockIcon();
final Class<?> alc = Class.forName(C_APPLICATION_LISTENER);
final Object listener =
Proxy.newProxyInstance(
getClass().getClassLoader(), new Class[] {alc}, new AppInvocationHandler());
invoke("addApplicationListener", alc, listener);
}
}
/**
* Invokes a method on the given object that expects multiple arguments.
*
* @param clazz class object to get the method from
* @param obj object on which the method should be invoked. Can be {@code null} for static methods
* @param method name of the method to invoke
* @param argClasses "types" of the arguments
* @param argObjects argument values
* @return return value of the method
* @throws Exception if any error occurs
*/
private static Object invoke(
final Class<?> clazz,
final Object obj,
final String method,
final Class<?>[] argClasses,
final Object[] argObjects)
throws Exception {
return clazz.getMethod(method, argClasses).invoke(obj, argObjects);
}
/**
* Returns all commands that start with the specified user input.
*
* @param <T> token type
* @param en available commands
* @param prefix user input
* @return completions
*/
private static <T extends Enum<T>> Enum<?>[] startWith(final Class<T> en, final String prefix) {
Enum<?>[] list = new Enum<?>[0];
final String t = prefix == null ? "" : prefix.toUpperCase(Locale.ENGLISH);
for (final Enum<?> e : en.getEnumConstants()) {
if (e.name().startsWith(t)) {
final int s = list.length;
list = Array.copy(list, new Enum<?>[s + 1]);
list[s] = e;
}
}
return list;
}
/**
* Starts the specified class in a separate process.
*
* @param clz class to start
* @param args command-line arguments
* @return reference to a {@link Process} instance representing the started process
*/
public static Process start(final Class<?> clz, final String... args) {
final String[] largs = {
"java",
"-Xmx" + Runtime.getRuntime().maxMemory(),
"-cp",
System.getProperty("java.class.path"),
clz.getName(),
"-D",
};
final StringList sl = new StringList().add(largs).add(args);
try {
return new ProcessBuilder(sl.toArray()).start();
} catch (final IOException ex) {
notexpected(ex);
return null;
}
}
/**
* Returns the name of the specified class.
*
* @param o object
* @return class name
*/
public static String name(final Class<?> o) {
return o.getSimpleName();
}