def _on_device_event(self, event):
"""
Handler for XI2 events.
"""
event_type = event.xi_type
device_id = event.device_id
log = self._log_event_stub
if _logger.isEnabledFor(logging.DEBUG) and \
event_type != XIEventType.Motion and \
event_type != XIEventType.TouchUpdate:
self._log_device_event(event)
log = self.log_event
# re-select devices on changes to the device hierarchy
if event_type in XIEventType.HierarchyEvents or \
event_type == XIEventType.DeviceChanged:
self.select_xinput_devices()
return
log("_on_device_event1")
if event_type == XIEventType.KeyPress or \
event_type == XIEventType.KeyRelease:
return
# check device_id, discard duplicate and unknown events
if event_type == XIEventType.Enter or \
event_type == XIEventType.Leave:
log("_on_device_event2 {} {}", device_id, self._master_device_id)
# enter/leave are only expected from the master device
if not device_id == self._master_device_id:
log("_on_device_event3")
return
else:
# all other pointer/touch events have to come from slaves
log("_on_device_event4 {} {}", event.device_id, self._slave_device_ids)
if not event.device_id in self._slave_device_ids:
log("_on_device_event5")
return
# bail if the window isn't realized yet
win = self.get_window()
if not win:
log("_on_device_event6")
return
# scale coordinates in response to changes to
# org.gnome.desktop.interface scaling-factor
try:
scale = win.get_scale_factor() # from Gdk 3.10
log("_on_device_event7 {}", scale)
if scale and scale != 1.0:
scale = 1.0 / scale
event.x = event.x * scale
event.y = event.y * scale
event.x_root = event.x_root * scale
event.y_root = event.y_root * scale
except AttributeError:
pass
# Slaves aren't grabbed for moving/resizing when simulating a drag
# operation (drag click button), or when multiple slave devices are
# involved (one for button press, another for motion).
# -> Simulate pointer grab, select root events we can track even
# outside the keyboard window.
# None of these problems are assumed to exist for touch devices.
log("_on_device_event8 {}", self._xi_grab_active)
if self._xi_grab_active and \
(event_type == XIEventType.Motion or \
event_type == XIEventType.ButtonRelease):
if not self._xi_grab_events_selected:
self._select_xi_grab_events(True)
log("_on_device_event9")
# We only get root window coordinates for root window events,
# so convert them to our target window's coordinates.
rx, ry = win.get_root_coords(0, 0)
event.x = event.x_root - rx
event.y = event.y_root - ry
else:
# Is self the hit window?
# We need this only for the multi-touch case with open
# long press popup, e.g. while shift is held down with
# one finger, touching anything in a long press popup must
# not also affect the keyboard below.
xid_event = event.xid_event
xid_win = win.get_xid()
log("_on_device_event10 {} {}", xid_event, xid_win)
if xid_event != 0 and \
xid_event != xid_win:
log("_on_device_event11")
return
# Dispatch events
self._xi_event_handled = False
if event_type == XIEventType.Motion:
self._on_motion_event(self, event)
elif event_type == XIEventType.TouchUpdate or \
event_type == XIEventType.TouchBegin or \
event_type == XIEventType.TouchEnd:
self._on_touch_event(self, event)
elif event_type == XIEventType.ButtonPress:
self._on_button_press_event(self, event)
elif event_type == XIEventType.ButtonRelease:
self._on_button_release_event(self, event)
# Notify CSButtonMapper, end remapped click.
if not self._xi_event_handled:
EventSource.emit(self, "button-release", event)
elif event_type == XIEventType.Enter:
self._on_enter_notify(self, event)
elif event_type == XIEventType.Leave:
self._on_leave_notify(self, event)
def _on_device_event(self, event):
"""
Handler for XI2 events.
"""
event_type = event.xi_type
device_id = event.device_id
log = self._log_event_stub
if _logger.isEnabledFor(logging.DEBUG) and \
event_type != XIEventType.Motion and \
event_type != XIEventType.TouchUpdate:
self._log_device_event(event)
log = self.log_event
# re-select devices on changes to the device hierarchy
if event_type in XIEventType.HierarchyEvents or \
event_type == XIEventType.DeviceChanged:
self.select_xinput_devices()
return
log("_on_device_event1")
if event_type == XIEventType.KeyPress or \
event_type == XIEventType.KeyRelease:
return
# check device_id, discard duplicate and unknown events
if event_type == XIEventType.Enter or \
event_type == XIEventType.Leave:
log("_on_device_event2 {} {}", device_id, self._master_device_id)
# enter/leave are only expected from the master device
if not device_id == self._master_device_id:
log("_on_device_event3")
return
else:
# all other pointer/touch events have to come from slaves
log("_on_device_event4 {} {}", event.device_id,
self._slave_device_ids)
if not event.device_id in self._slave_device_ids:
log("_on_device_event5")
return
# bail if the window isn't realized yet
win = self.get_window()
if not win:
log("_on_device_event6")
return
# scale coordinates in response to changes to
# org.gnome.desktop.interface scaling-factor
try:
scale = win.get_scale_factor() # from Gdk 3.10
log("_on_device_event7 {}", scale)
if scale and scale != 1.0:
scale = 1.0 / scale
event.x = event.x * scale
event.y = event.y * scale
event.x_root = event.x_root * scale
event.y_root = event.y_root * scale
except AttributeError:
pass
# Slaves aren't grabbed for moving/resizing when simulating a drag
# operation (drag click button), or when multiple slave devices are
# involved (one for button press, another for motion).
# -> Simulate pointer grab, select root events we can track even
# outside the keyboard window.
# None of these problems are assumed to exist for touch devices.
log("_on_device_event8 {}", self._xi_grab_active)
if self._xi_grab_active and \
(event_type == XIEventType.Motion or
event_type == XIEventType.ButtonRelease):
if not self._xi_grab_events_selected:
self._select_xi_grab_events(True)
log("_on_device_event9")
# We only get root window coordinates for root window events,
# so convert them to our target window's coordinates.
rx, ry = win.get_root_coords(0, 0)
event.x = event.x_root - rx
event.y = event.y_root - ry
else:
# Is self the hit window?
# We need this only for the multi-touch case with open
# long press popup, e.g. while shift is held down with
# one finger, touching anything in a long press popup must
# not also affect the keyboard below.
xid_event = event.xid_event
xid_win = self.get_xid()
log("_on_device_event10 {} {}", xid_event, xid_win)
if xid_event != 0 and \
xid_event != xid_win:
log("_on_device_event11")
return
# Dispatch events
self._xi_event_handled = False
if event_type == XIEventType.Motion:
self._on_motion_event(self, event)
elif event_type == XIEventType.TouchUpdate or \
event_type == XIEventType.TouchBegin or \
event_type == XIEventType.TouchEnd:
self._on_touch_event(self, event)
elif event_type == XIEventType.ButtonPress:
self._on_button_press_event(self, event)
elif event_type == XIEventType.ButtonRelease:
self._on_button_release_event(self, event)
# Notify CSButtonMapper, end remapped click.
if not self._xi_event_handled:
EventSource.emit(self, "button-release", event)
elif event_type == XIEventType.Enter:
self._on_enter_notify(self, event)
elif event_type == XIEventType.Leave:
self._on_leave_notify(self, event)
