keybinding.py 文件源码

def clicked(self, widget):
        display = widget.get_display()
        if not self.teaching:
            if (Gtk.MAJOR_VERSION, Gtk.MINOR_VERSION) >= (3, 20):
                seat = display.get_default_seat()
                seat.grab(widget.get_window(), Gdk.SeatCapabilities.KEYBOARD, False,
                          None, None, None, None)
            else:
                Gdk.keyboard_grab(self.get_window(), False, Gdk.CURRENT_TIME)

            self.button.set_label(_("Pick an accelerator"))
            self.event_id = self.connect( "key-release-event", self.on_key_release )
            self.teaching = True
        else:
            if self.event_id:
                self.disconnect(self.event_id)
            self.ungrab(display)
            self.set_button_text()
            self.teaching = False