/usr/share/pyshared/Onboard/MouseControl.py is in onboard 0.97.0-0ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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"""
Dwelling control via mousetweaks and general mouse support functions.
"""
from __future__ import division, print_function, unicode_literals
try:
import dbus
from dbus.mainloop.glib import DBusGMainLoop
except ImportError:
pass
from gi.repository.Gio import Settings, SettingsBindFlags
from gi.repository import GLib, GObject, Gtk
from Onboard.utils import DelayedLauncher
from Onboard.ConfigUtils import ConfigObject
import osk
### Logging ###
import logging
_logger = logging.getLogger("MouseControl")
###############
class MouseController(GObject.GObject):
""" Abstract base class for mouse controllers """
PRIMARY_BUTTON = 1
MIDDLE_BUTTON = 2
SECONDARY_BUTTON = 3
CLICK_TYPE_SINGLE = 3
CLICK_TYPE_DOUBLE = 2
CLICK_TYPE_DRAG = 1
# Public interface
def supports_click_params(self, button, click_type):
raise NotImplementedError()
def set_click_params(self, button, click_type):
raise NotImplementedError()
def get_click_button(self):
raise NotImplementedError()
def get_click_type(self):
raise NotImplementedError()
class ClickMapper(MouseController):
"""
Onboards built-in mouse click mapper.
Maps secondary or middle button to the primary button.
"""
def __init__(self):
MouseController.__init__(self)
self._osk_util = osk.Util()
self._click_done_notify_callbacks = []
self._exclusion_rects = []
def cleanup(self):
self._click_done_notify_callbacks = []
def supports_click_params(self, button, click_type):
return True
def set_click_params(self, button, click_type):
self._set_next_mouse_click(button, click_type)
def get_click_button(self):
try:
button = self._osk_util.get_convert_click_button()
except osk.error as error:
button = self.PRIMARY_BUTTON
return button
def get_click_type(self):
try:
click_type = self._osk_util.get_convert_click_type()
except osk.error as error:
click_type = self.CLICK_TYPE_SINGLE
return click_type
def _set_next_mouse_click(self, button, click_type):
"""
Converts the next mouse left-click to the click
specified in @button. Possible values are 2 and 3.
"""
try:
self._osk_util.convert_primary_click(button, click_type,
self._exclusion_rects,
self._on_click_done)
except osk.error as error:
_logger.warning(error)
self._button = self.PRIMARY_BUTTON
def state_notify_add(self, callback):
self._click_done_notify_callbacks.append(callback)
def _on_click_done(self):
# update click type buttons
for callback in self._click_done_notify_callbacks:
callback(None)
def set_exclusion_rects(self, rects):
self._exclusion_rects = rects
class Mousetweaks(ConfigObject, MouseController):
""" Mousetweaks settings, D-bus control and signal handling """
CLICK_TYPE_RIGHT = 0
MOUSE_A11Y_SCHEMA_ID = "org.gnome.desktop.a11y.mouse"
MOUSETWEAKS_SCHEMA_ID = "org.gnome.mousetweaks"
MT_DBUS_NAME = "org.gnome.Mousetweaks"
MT_DBUS_PATH = "/org/gnome/Mousetweaks"
MT_DBUS_IFACE = "org.gnome.Mousetweaks"
MT_DBUS_PROP = "ClickType"
def __init__(self):
self._click_type_callbacks = []
if not "dbus" in globals():
raise ImportError("pythonx-dbus unavailable")
ConfigObject.__init__(self)
MouseController.__init__(self)
self.launcher = DelayedLauncher()
self._daemon_running_notify_callbacks = []
# Check that the mousetweaks schema is installed.
# Raises a SchemaError if not.
self.mousetweaks = ConfigObject(None, self.MOUSETWEAKS_SCHEMA_ID)
# Use D-bus main loop by default
DBusGMainLoop(set_as_default=True)
# connect to session bus
self._bus = dbus.SessionBus()
self._bus.add_signal_receiver(self._on_name_owner_changed,
"NameOwnerChanged",
dbus.BUS_DAEMON_IFACE,
arg0=self.MT_DBUS_NAME)
# Initial state
proxy = self._bus.get_object(dbus.BUS_DAEMON_NAME, dbus.BUS_DAEMON_PATH)
result = proxy.NameHasOwner(self.MT_DBUS_NAME, dbus_interface=dbus.BUS_DAEMON_IFACE)
self._set_connection(bool(result))
def _init_keys(self):
""" Create gsettings key descriptions """
self.schema = self.MOUSE_A11Y_SCHEMA_ID
self.sysdef_section = None
self.add_key("dwell-click-enabled", False)
self.add_key("dwell-time", 1.2)
self.add_key("click-type-window-visible", False)
def on_properties_initialized(self):
ConfigObject.on_properties_initialized(self)
# launch mousetweaks on startup if necessary
if not self._iface and \
self.dwell_click_enabled:
self._launch_daemon(0.5)
def cleanup(self):
self._daemon_running_notify_callbacks = []
def _launch_daemon(self, delay):
self.launcher.launch_delayed(["mousetweaks"], delay)
def _set_connection(self, active):
''' Update interface object, state and notify listeners '''
if active:
proxy = self._bus.get_object(self.MT_DBUS_NAME, self.MT_DBUS_PATH)
self._iface = dbus.Interface(proxy, dbus.PROPERTIES_IFACE)
self._iface.connect_to_signal("PropertiesChanged",
self._on_click_type_prop_changed)
self._click_type = self._iface.Get(self.MT_DBUS_IFACE, self.MT_DBUS_PROP)
else:
self._iface = None
self._click_type = self.CLICK_TYPE_SINGLE
def _on_name_owner_changed(self, name, old, new):
'''
The daemon has de/registered the name.
Called when dwell-click-enabled changes in gsettings.
'''
active = old == ""
if active:
self.launcher.stop()
self._set_connection(active)
# update hover click button
for callback in self._daemon_running_notify_callbacks:
callback(active)
def daemon_running_notify_add(self, callback):
self._daemon_running_notify_callbacks.append(callback)
def _on_click_type_prop_changed(self, iface, changed_props, invalidated_props):
''' Either we or someone else has change the click-type. '''
if self.MT_DBUS_PROP in changed_props:
self._click_type = changed_props.get(self.MT_DBUS_PROP)
# notify listeners
for callback in self._click_type_callbacks:
callback(self._click_type)
def _get_mt_click_type(self):
return self._click_type;
def _set_mt_click_type(self, click_type):
if click_type != self._click_type:# and self.is_active():
self._click_type = click_type
self._iface.Set(self.MT_DBUS_IFACE, self.MT_DBUS_PROP, click_type)
##########
# Public
##########
def state_notify_add(self, callback):
""" Convenience function to subscribes to all notifications """
self.dwell_click_enabled_notify_add(callback)
self.click_type_notify_add(callback)
self.daemon_running_notify_add(callback)
def click_type_notify_add(self, callback):
self._click_type_callbacks.append(callback)
def is_active(self):
return self.dwell_click_enabled and bool(self._iface)
def set_active(self, active):
self.dwell_click_enabled = active
# try to launch mousetweaks if it isn't running yet
if active and not self._iface:
self._launch_daemon(1.0)
else:
self.launcher.stop()
def supports_click_params(self, button, click_type):
return button in [self.PRIMARY_BUTTON, self.SECONDARY_BUTTON]
def set_click_params(self, button, click_type):
mt_click_type = click_type
if button == self.SECONDARY_BUTTON:
mt_click_type = self.CLICK_TYPE_RIGHT
self._set_mt_click_type(mt_click_type)
def get_click_button(self):
mt_click_type = self._get_mt_click_type()
if mt_click_type == self.CLICK_TYPE_RIGHT:
return self.SECONDARY_BUTTON
return self.PRIMARY_BUTTON
def get_click_type(self):
mt_click_type = self._get_mt_click_type()
if mt_click_type == self.CLICK_TYPE_RIGHT:
return self.CLICK_TYPE_SINGLE
return mt_click_type
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