我正在寻找可以与gtk3一起使用的python xlib全局键绑定的一些示例,就像在http://www.siafoo.net/snippet/239处为gtk2完成一样.这里的代码非常相似：
from Xlib.display import Display
from Xlib import X
import gtk.gdk
import threading
import gobject
class GlobalKeyBinding (gobject.GObject, threading.Thread):
__gsignals__ = {
'activate': (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, ()),
}
def __init__ (self):
gobject.GObject.__init__ (self)
threading.Thread.__init__ (self)
self.setDaemon (True)
self.keymap = gtk.gdk.keymap_get_default ()
self.display = Display ()
self.screen = self.display.screen ()
self.root = self.screen.root
self.map_modifiers ()
self.keybindings={}
self.current_signal=None
def map_modifiers (self):
gdk_modifiers = (gtk.gdk.CONTROL_MASK, gtk.gdk.SHIFT_MASK, gtk.gdk.MOD1_MASK,
gtk.gdk.MOD3_MASK, gtk.gdk.MOD4_MASK, gtk.gdk.MOD5_MASK,
gtk.gdk.SUPER_MASK, gtk.gdk.HYPER_MASK)
self.known_modifiers_mask = 0
for modifier in gdk_modifiers:
self.known_modifiers_mask |= modifier
def add_grab_key(self,accelerator,signal):
if not accelerator:
return
keyval,modifiers=gtk.accelerator_parse(accelerator)
if not keyval or not modifiers:
return
keycode=self.keymap.get_entries_for_keyval(keyval)[0][0]
self.keybindings[signal]=[accelerator,
keycode,
int (modifiers)]
#grab_key operation forces X to exclusivelly send given keycode (like apostrophe char) to current X client (unless other X client grabbed it before).
#`X.AnyModifier' parameter tells to register the keycode for all modifiers, thus Ctrl-', Alt-', Shift-', ' will all be sent to this X client.
# given keyval is grabbed by current X client until `ungrab_key' is called.
return self.root.grab_key (keycode, X.AnyModifier, True, X.GrabModeAsync, X.GrabModeSync)
def ungrab (self):
for signal in self.keybindings:
# ungrab_key ungrabs given keycode, that was grabbed by `grab_key'.
self.root.ungrab_key (self.keybindings[signal][1],X.AnyModifier, self.root)
self.keybindings={}
def idle (self):
if self.current_signal:
gtk.gdk.threads_enter ()
self.emit (self.current_signal)
self.current_signal=None
gtk.gdk.threads_leave ()
return False
#threading.Thread.start() method invokes this method.
def run (self):
self.running = True
wait_for_release = False
while self.running:
event = self.display.next_event () # registered keycode(or probably rather event) has been received.
if self.current_signal:
self.display.allow_events (X.ReplayKeyboard, event.time)
continue
try:
if not wait_for_release and event.type == X.KeyPress:
modifiers = event.state & self.known_modifiers_mask
print modifiers, event.detail
for signal in self.keybindings:
if self.keybindings[signal][1] == event.detail and self.keybindings[signal][2] == modifiers:
self.this_signal=signal
this_keycode = self.keybindings[signal][1]
wait_for_release=True
break
if wait_for_release:
self.display.allow_events (X.AsyncKeyboard, event.time)
else:
self.display.allow_events (X.ReplayKeyboard, event.time)
continue
elif wait_for_release and event.detail == this_keycode and event.type == X.KeyRelease:
wait_for_release = False
self.current_signal=self.this_signal
self.event_window=event.window
gobject.idle_add (self.idle)
self.display.allow_events (X.AsyncKeyboard, event.time)
else:
self.display.allow_events (X.ReplayKeyboard, event.time)
except:
self.display.allow_events (X.ReplayKeyboard, event.time)
def stop (self):
print "stopping keybindings thread..."
self.running = False
self.ungrab ()
self.display.close ()
# SAMPLE USAGE
def callback (keybinding):
print 'Callback!'
keybinding.stop()
gtk.main_quit ()
def main():
print "starting..."
gtk.gdk.threads_init ()
keybindings=GlobalKeyBinding()
keybindings.add_grab_key('<Control>apostrophe','activate')
keybindings.connect('activate',callback)
keybindings.start () # let's thart the thread
gtk.main ()
main()
不幸的是我找不到一个,所以我决定重新实现它使用gtk3(ubuntu 12.04).结果如下.它没有运行时错误,但不幸的是它没有获取任何输入.
from Xlib.display import Display
from Xlib import X
from gi.repository import Gtk, Gdk, GObject
import threading
class GlobalKeyBinding (GObject.GObject, threading.Thread):
__gsignals__ = {
'activate': (GObject.SignalFlags.RUN_LAST, None, ()),
}
def __init__ (self):
GObject.GObject.__init__ (self)
threading.Thread.__init__ (self)
self.setDaemon (True)
self.keymap = Gdk.Keymap.get_default()
self.display = Display ()
self.screen = self.display.screen ()
self.root = self.screen.root
self.map_modifiers ()
self.keybindings={}
self.current_signal=None
def map_modifiers (self):
gdk_modifiers = (Gdk.ModifierType.CONTROL_MASK, Gdk.ModifierType.SHIFT_MASK, Gdk.ModifierType.MOD1_MASK,
Gdk.ModifierType.MOD3_MASK, Gdk.ModifierType.MOD4_MASK, Gdk.ModifierType.MOD5_MASK,
Gdk.ModifierType.SUPER_MASK, Gdk.ModifierType.HYPER_MASK)
self.known_modifiers_mask = 0
for modifier in gdk_modifiers:
#print modifier,modifier+0
self.known_modifiers_mask |= modifier
def add_grab_key(self,accelerator,signal):
if not accelerator:
return
keyval,modifiers=Gtk.accelerator_parse(accelerator)
if not keyval or not modifiers:
return
#keycode=self.keymap.get_entries_for_keyval(keyval)[0][0]
success, entries = self.keymap.get_entries_for_keyval(keyval)
entry = [(int(i.keycode), i.group, i.level) for i in entries]
if not entry:
raise TypeError("Invalid key name")
keycode=entry[0][0]
self.keybindings[signal]=[accelerator,
keycode,
int (modifiers)]
return self.root.grab_key (keycode, X.AnyModifier, True, X.GrabModeAsync, X.GrabModeSync)
def ungrab (self):
for signal in self.keybindings:
self.root.ungrab_key (self.keybindings[signal][1],X.AnyModifier, self.root)
self.keybindings={}
def idle (self):
if self.current_signal:
Gdk.threads_enter ()
self.emit (self.current_signal)
self.current_signal=None
Gdk.threads_leave ()
return False
def run (self):
self.running = True
wait_for_release = False
while self.running:
event = self.display.next_event ()
if self.current_signal:
self.display.allow_events (X.ReplayKeyboard, event.time)
continue
try:
if not wait_for_release and event.type == X.KeyPress:
modifiers = event.get_state() & self.known_modifiers_mask
print modifiers,event.get_state()
for signal in self.keybindings:
if self.keybindings[signal][1] == event.detail and self.keybindings[signal][2] == modifiers:
self.this_signal=signal
this_keycode = self.keybindings[signal][1]
wait_for_release=True
break
if wait_for_release:
self.display.allow_events (X.AsyncKeyboard, event.time)
else:
self.display.allow_events (X.ReplayKeyboard, event.time)
continue
elif wait_for_release and event.detail == this_keycode and event.type == X.KeyRelease:
wait_for_release = False
self.current_signal=self.this_signal
self.event_window=event.window
GObject.idle_add (self.idle)
self.display.allow_events (X.AsyncKeyboard, event.time)
else:
self.display.allow_events (X.ReplayKeyboard, event.time)
except:
self.display.allow_events (X.ReplayKeyboard, event.time)
def stop (self):
self.running = False
self.ungrab ()
self.display.close ()
# SAMPLE USAGE
def callback (keybinding):
print 'Callback!'
keybinding.stop()
Gtk.main_quit ()
def main():
print "starting..."
Gdk.threads_init ()
keybindings=GlobalKeyBinding()
keybindings.add_grab_key('<Control>apostrophe','activate')
keybindings.connect('activate',callback)
print "keybindings go"
keybindings.start () # let's thart the thread
print "gtk go"
Gtk.main ()
main()
也许你有一些想法如何让它发挥作用？
最好的祝福,
保罗
解决方法:
嘿,我实现了相同的代码,工作得很好,你可以试试这个.但没有保修.如果您发现缺少部件,请告诉我.
# -*- coding: utf-8; -*-
# Copyright (C) 2013 Özcan Esen <ozcanesen@gmail.com>
# Copyright (C) 2008 Luca Bruno <lethalman88@gmail.com>
#
# This a slightly modified version of the globalkeybinding.py file which is part of FreeSpeak.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
from Xlib.display import Display
from Xlib import X, error
#import GObject
#import gtk.gdk
from gi.repository import Gtk, Gdk, GObject, GLib
import threading
from config import ConfigManager
class GlobalKeyBinding(GObject.GObject, threading.Thread):
__gsignals__ = {
'activate':(GObject.SIGNAL_RUN_LAST, None,()),
}
def __init__(self):
GObject.GObject.__init__(self)
threading.Thread.__init__(self)
self.setDaemon(True)
self.keymap = Gdk.Keymap.get_default()
self.display = Display()
self.screen = self.display.screen()
self.root = self.screen.root
self.ignored_masks = self.get_mask_combinations(X.LockMask | X.Mod2Mask | X.Mod5Mask)
self.map_modifiers()
def map_modifiers(self):
gdk_modifiers =(Gdk.ModifierType.CONTROL_MASK, Gdk.ModifierType.SHIFT_MASK, Gdk.ModifierType.MOD1_MASK,
Gdk.ModifierType.MOD2_MASK, Gdk.ModifierType.MOD3_MASK, Gdk.ModifierType.MOD4_MASK, Gdk.ModifierType.MOD5_MASK,
Gdk.ModifierType.SUPER_MASK, Gdk.ModifierType.HYPER_MASK)
self.known_modifiers_mask = 0
for modifier in gdk_modifiers:
if "Mod" not in Gtk.accelerator_name(0, modifier):
self.known_modifiers_mask |= modifier
def grab(self):
Gdk.threads_enter()
accelerator = ConfigManager.get_conf('global-key')
Gdk.threads_leave()
keyval, modifiers = Gtk.accelerator_parse(accelerator)
if not accelerator or(not keyval and not modifiers):
self.keycode = None
self.modifiers = None
return
self.keycode= self.keymap.get_entries_for_keyval(keyval)[1][0].keycode
self.modifiers = int(modifiers)
catch = error.CatchError(error.BadAccess)
for ignored_mask in self.ignored_masks:
mod = modifiers | ignored_mask
result = self.root.grab_key(self.keycode, mod, True, X.GrabModeAsync, X.GrabModeSync, one rror=catch)
self.display.sync()
if catch.get_error():
return False
return True
def ungrab(self):
if self.keycode:
self.root.ungrab_key(self.keycode, X.AnyModifier, self.root)
def get_mask_combinations(self, mask):
return [x for x in xrange(mask+1) if not (x & ~mask)]
def idle(self):
Gdk.threads_enter()
self.emit("activate")
Gdk.threads_leave()
return False
def run(self):
self.running = True
wait_for_release = False
while self.running:
event = self.display.next_event()
self.current_event_time = event.time
if event.detail == self.keycode and event.type == X.KeyPress and not wait_for_release:
modifiers = event.state & self.known_modifiers_mask
if modifiers == self.modifiers:
wait_for_release = True
self.display.allow_events(X.AsyncKeyboard, event.time)
else:
self.display.allow_events(X.ReplayKeyboard, event.time)
elif event.detail == self.keycode and wait_for_release:
if event.type == X.KeyRelease:
wait_for_release = False
GLib.idle_add(self.idle)
self.display.allow_events(X.AsyncKeyboard, event.time)
else:
self.display.allow_events(X.ReplayKeyboard, event.time)
def stop(self):
self.running = False
self.ungrab()
self.display.close()