131 lines
5.1 KiB
Python
131 lines
5.1 KiB
Python
# -*- coding: utf-8; -*-
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# Copyright (C) 2013 Özcan Esen <ozcanesen@gmail.com>
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# Copyright (C) 2008 Luca Bruno <lethalman88@gmail.com>
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#
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# This a slightly modified version of the globalkeybinding.py file which is part of FreeSpeak.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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# DEALINGS IN THE SOFTWARE.
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import gi
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gi.require_version("Gtk", "2.0")
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from Xlib.display import Display
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from Xlib import X, error
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from gi.repository import Gtk, Gdk, GObject, GLib
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import threading
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import ctypes
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from ctypes import *
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import capi
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gdk = CDLL("libgdk-x11-2.0.so.0")
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class GlobalKeyBinding(GObject.GObject, threading.Thread):
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__gsignals__ = {
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'activate': (GObject.SignalFlags.RUN_LAST, None, ()),
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}
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def __init__(self):
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GObject.GObject.__init__ (self)
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threading.Thread.__init__ (self)
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self.setDaemon (True)
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self.keymap = capi.get_widget (gdk.gdk_keymap_get_default())
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self.display = Display()
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self.screen = self.display.screen()
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self.root = self.screen.root
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self.ignored_masks = self.get_mask_combinations(X.LockMask | X.Mod2Mask | X.Mod5Mask)
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self.map_modifiers()
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def map_modifiers(self):
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gdk_modifiers =(Gdk.ModifierType.CONTROL_MASK, Gdk.ModifierType.SHIFT_MASK, Gdk.ModifierType.MOD1_MASK,
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Gdk.ModifierType.MOD2_MASK, Gdk.ModifierType.MOD3_MASK, Gdk.ModifierType.MOD4_MASK, Gdk.ModifierType.MOD5_MASK,
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Gdk.ModifierType.SUPER_MASK, Gdk.ModifierType.HYPER_MASK)
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self.known_modifiers_mask = 0
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for modifier in gdk_modifiers:
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if "Mod" not in Gtk.accelerator_name(0, modifier):
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self.known_modifiers_mask |= modifier
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def grab(self, key):
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accelerator = key
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keyval, modifiers = Gtk.accelerator_parse(accelerator)
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if not accelerator or (not keyval and not modifiers):
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self.keycode = None
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self.modifiers = None
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return False
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count = c_int()
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array = (KeymapKey * 10)()
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keys = cast(array, POINTER(KeymapKey))
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gdk.gdk_keymap_get_entries_for_keyval(hash(self.keymap), keyval, byref(keys), byref(count))
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self.keycode = keys[0].keycode
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self.modifiers = int(modifiers)
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catch = error.CatchError(error.BadAccess)
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for ignored_mask in self.ignored_masks:
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mod = modifiers | ignored_mask
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result = self.root.grab_key(self.keycode, mod, True, X.GrabModeAsync, X.GrabModeSync, onerror=catch)
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self.display.sync()
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if catch.get_error():
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return False
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return True
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def ungrab(self, key):
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if self.keycode:
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self.root.ungrab_key(self.keycode, X.AnyModifier, self.root)
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def get_mask_combinations(self, mask):
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return [x for x in xrange(mask+1) if not (x & ~mask)]
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def idle(self):
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self.emit("activate")
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return False
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def activate(self):
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GObject.idle_add(self.run)
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def run(self):
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self.running = True
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wait_for_release = False
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while self.running:
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event = self.display.next_event()
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self.current_event_time = event.time
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if event.detail == self.keycode and event.type == X.KeyPress and not wait_for_release:
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modifiers = event.state & self.known_modifiers_mask
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if modifiers == self.modifiers:
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wait_for_release = True
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self.display.allow_events(X.AsyncKeyboard, event.time)
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else:
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self.display.allow_events(X.ReplayKeyboard, event.time)
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elif event.detail == self.keycode and wait_for_release:
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if event.type == X.KeyRelease:
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wait_for_release = False
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GLib.idle_add(self.idle)
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self.display.allow_events(X.AsyncKeyboard, event.time)
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else:
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self.display.allow_events(X.ReplayKeyboard, event.time)
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def stop(self):
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self.running = False
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self.ungrab()
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self.display.close()
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class KeymapKey(Structure):
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_fields_ = [("keycode", c_uint),
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("group", c_int),
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("level", c_int)]
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