test_DarwinTrackpadListener.py

gistfile1.txt

import Quartz
import time

from AppKit import NSApplication, NSEvent, NSWorkspace

from pynput import _logger
from pynput._util.darwin import ListenerMixin
from pynput._util import AbstractListener, prefix


class DarwinTrackpadListener(ListenerMixin, AbstractListener):

    _EVENTS = (
        Quartz.CGEventMaskBit(Quartz.NSEventTypeGesture)
        # This works too:
        # Quartz.kCGEventMaskForAllEvents
    )

    def __init__(self, *args, **kwargs):
        self._log = _logger(self.__class__)
        # option_prefix = prefix(DarwinTrackpadListener, self.__class__)
        option_prefix = 'darwin_' # FIXME
        self._options = {
            key[len(option_prefix):]: value
            for key, value in kwargs.items()
            if key.startswith(option_prefix)}

        self._intercept = self._options.get('intercept', None)

        # Try to get an NSView so we can call setAcceptsTouchEvents.
        # Method 1: NSApplication.sharedApplication()
        self._application = NSApplication.sharedApplication()
        window = self._application.keyWindow()
        print('*** key window', window) # .. None. Are there *any* windows?
        print('*** windows', self._application.windows()) # empty.
        # ok, it seems like there aren't any windows.. how can we get a view?

        # Method 2: NSWorkspace -> NSRunningApplication -> ...?
        running_app = NSWorkspace.sharedWorkspace().frontmostApplication()

        super(DarwinTrackpadListener, self).__init__(*args, **kwargs)

    def _handle(self, _proxy, event_type, event, _refcon):
        # kCGEventScrollWheel (22)
        # NSEventTypeGesture (29)
        # NSEventTypeMouseMoved / kCGEventMouseMoved (5)
        print('** event', event_type, event)

        try:
            # This is the location of the mouse pointer at this point, not the
            # touches on the trackpad.
            (px, py) = Quartz.CGEventGetLocation(event)
            # print(' ', px, py)
        except AttributeError:
            pass

        if event_type == 29:
            ns_event = NSEvent.eventWithCGEvent_(event)
            # touches = ns_event.touchesMatchingPhase_inView_(Quartz.NSTouchPhaseAny, None)
            touches = ns_event.allTouches()
            if touches:
                print(touches) # empty



def main():
    def my_callback(event):
        print('**** my_callback', event)

    def _darwin_intercept(_, event):
        """For MacOS support.
        The user must grant Accessibility access to Terminal, in the
        Security & Privacy > Privacy system preferences.
        """
        return event

    listener = DarwinTrackpadListener(
        on_event=my_callback, darwin_intercept=_darwin_intercept)
    listener.start()
    listener.wait()

    try:
        while True:
            time.sleep(0.0005)
    except KeyboardInterrupt:
        listener.stop()
        listener.join()


if __name__ == "__main__":
    main()