private static final Controller[] enumerateControllers() {
List controllers = new ArrayList();
try {
OSXHIDDeviceIterator it = new OSXHIDDeviceIterator();
try {
while (true) {
OSXHIDDevice device;
try {
device = it.next();
if (device == null) break;
boolean device_used = false;
try {
int old_size = controllers.size();
createControllersFromDevice(device, controllers);
device_used = old_size != controllers.size();
} catch (IOException e) {
logln("Failed to create controllers from device: " + device.getProductName());
}
if (!device_used) device.release();
} catch (IOException e) {
logln("Failed to enumerate device: " + e.getMessage());
}
}
} finally {
it.close();
}
} catch (IOException e) {
log("Failed to enumerate devices: " + e.getMessage());
return new Controller[] {};
}
Controller[] controllers_array = new Controller[controllers.size()];
controllers.toArray(controllers_array);
return controllers_array;
}
private static final void createControllersFromDevice(OSXHIDDevice device, List controllers)
throws IOException {
UsagePair usage_pair = device.getUsagePair();
if (usage_pair == null) return;
List elements = device.getElements();
if (usage_pair.getUsagePage() == UsagePage.GENERIC_DESKTOP
&& (usage_pair.getUsage() == GenericDesktopUsage.MOUSE
|| usage_pair.getUsage() == GenericDesktopUsage.POINTER)) {
Controller mouse = createMouseFromDevice(device, elements);
if (mouse != null) controllers.add(mouse);
} else if (usage_pair.getUsagePage() == UsagePage.GENERIC_DESKTOP
&& (usage_pair.getUsage() == GenericDesktopUsage.KEYBOARD
|| usage_pair.getUsage() == GenericDesktopUsage.KEYPAD)) {
Controller keyboard = createKeyboardFromDevice(device, elements);
if (keyboard != null) controllers.add(keyboard);
} else if (usage_pair.getUsagePage() == UsagePage.GENERIC_DESKTOP
&& usage_pair.getUsage() == GenericDesktopUsage.JOYSTICK) {
Controller joystick = createControllerFromDevice(device, elements, Controller.Type.STICK);
if (joystick != null) controllers.add(joystick);
} else if (usage_pair.getUsagePage() == UsagePage.GENERIC_DESKTOP
&& usage_pair.getUsage() == GenericDesktopUsage.MULTI_AXIS_CONTROLLER) {
Controller multiaxis = createControllerFromDevice(device, elements, Controller.Type.STICK);
if (multiaxis != null) controllers.add(multiaxis);
} else if (usage_pair.getUsagePage() == UsagePage.GENERIC_DESKTOP
&& usage_pair.getUsage() == GenericDesktopUsage.GAME_PAD) {
Controller game_pad = createControllerFromDevice(device, elements, Controller.Type.GAMEPAD);
if (game_pad != null) controllers.add(game_pad);
}
}
private static final Keyboard createKeyboardFromDevice(OSXHIDDevice device, List elements)
throws IOException {
List components = new ArrayList();
OSXHIDQueue queue = device.createQueue(AbstractController.EVENT_QUEUE_DEPTH);
try {
addElements(queue, elements, components, false);
} catch (IOException e) {
queue.release();
throw e;
}
Component[] components_array = new Component[components.size()];
components.toArray(components_array);
Keyboard keyboard =
new OSXKeyboard(device, queue, components_array, new Controller[] {}, new Rumbler[] {});
return keyboard;
}
private static final AbstractController createControllerFromDevice(
OSXHIDDevice device, List elements, Controller.Type type) throws IOException {
List components = new ArrayList();
OSXHIDQueue queue = device.createQueue(AbstractController.EVENT_QUEUE_DEPTH);
try {
addElements(queue, elements, components, false);
} catch (IOException e) {
queue.release();
throw e;
}
Component[] components_array = new Component[components.size()];
components.toArray(components_array);
AbstractController controller =
new OSXAbstractController(
device, queue, components_array, new Controller[] {}, new Rumbler[] {}, type);
return controller;
}
private static final Mouse createMouseFromDevice(OSXHIDDevice device, List elements)
throws IOException {
List components = new ArrayList();
OSXHIDQueue queue = device.createQueue(AbstractController.EVENT_QUEUE_DEPTH);
try {
addElements(queue, elements, components, true);
} catch (IOException e) {
queue.release();
throw e;
}
Component[] components_array = new Component[components.size()];
components.toArray(components_array);
Mouse mouse =
new OSXMouse(device, queue, components_array, new Controller[] {}, new Rumbler[] {});
if (mouse.getPrimaryButton() != null && mouse.getX() != null && mouse.getY() != null) {
return mouse;
} else {
queue.release();
return null;
}
}