242 lines
9.0 KiB
Python
242 lines
9.0 KiB
Python
#!/usr/bin/python2
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# -*- coding: utf-8; -*-
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# Copyright (C) 2013 Ozcan 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 threading
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import gi
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gi.require_version("Gtk", "3.0")
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from gi.repository import Gtk, Gdk, GLib, GObject
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from Xlib import X, error
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from Xlib.display import Display
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SPECIAL_MODS = (["Super_L", "<Super>"],
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["Super_R", "<Super>"],
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["Alt_L", "<Alt>"],
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["Alt_R", "<Alt>"],
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["Control_L", "<Primary>"],
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["Control_R", "<Primary>"],
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["Shift_L", "<Shift>"],
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["Shift_R", "<Shift>"])
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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 = 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.window = 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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self.raw_keyval = None
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self.keytext = ""
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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) or "Mod4" 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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accelerator = accelerator.replace("<Super>", "<Mod4>")
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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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self.keytext = key
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try:
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self.keycode = self.keymap.get_entries_for_keyval(keyval).keys[0].keycode
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except:
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# In Betsy, the get_entries_for_keyval() returns an unamed tuple...
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self.keycode = self.keymap.get_entries_for_keyval(keyval)[1][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.window.grab_key(self.keycode, mod, True, X.GrabModeAsync, X.GrabModeAsync, onerror=catch)
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self.display.flush()
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# sync has been blocking. Don't know why.
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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):
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if self.keycode:
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self.window.ungrab_key(self.keycode, X.AnyModifier, self.window)
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def rebind(self, key):
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self.ungrab()
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if key != "":
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self.grab(key)
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else:
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self.keytext = ""
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def set_focus_window(self, window = None):
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self.ungrab()
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if window is None:
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self.window = self.screen.root
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else:
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self.window = self.display.create_resource_object("window", window.get_xid())
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self.grab(self.keytext)
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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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GLib.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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try:
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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.send_event(self.window, event, X.KeyPressMask | X.KeyReleaseMask, True)
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self.display.allow_events(X.ReplayKeyboard, event.time)
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wait_for_release = False
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except AttributeError:
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continue
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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 KeybindingWidget(Gtk.Box):
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__gsignals__ = {
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'accel-edited': (GObject.SignalFlags.RUN_LAST, None, ()),
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}
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def __init__(self, desc):
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super(KeybindingWidget, self).__init__()
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self.desc = desc
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self.label = Gtk.Label(desc)
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if self.desc != "":
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self.pack_start(self.label, False, False, 0)
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self.button = Gtk.Button()
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self.button.set_tooltip_text(_("Click to set a new accelerator key for opening and closing the menu. ") +
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_("Press Escape or click again to cancel the operation. ") +
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_("Press Backspace to clear the existing keybinding."))
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self.button.connect("clicked", self.clicked)
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self.button.set_size_request(200, -1)
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self.pack_start(self.button, False, False, 4)
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self.show_all()
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self.event_id = None
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self.teaching = False
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def clicked(self, widget):
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if not self.teaching:
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Gdk.keyboard_grab(self.get_window(), False, Gdk.CURRENT_TIME)
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self.button.set_label(_("Pick an accelerator"))
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self.event_id = self.connect( "key-release-event", self.on_key_release )
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self.teaching = True
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else:
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if self.event_id:
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self.disconnect(self.event_id)
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self.ungrab()
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self.set_button_text()
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self.teaching = False
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def on_key_release(self, widget, event):
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self.disconnect(self.event_id)
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self.ungrab()
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self.event_id = None
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if event.keyval == Gdk.KEY_Escape:
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self.set_button_text()
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self.teaching = False
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return True
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if event.keyval == Gdk.KEY_BackSpace:
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self.teaching = False
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self.value = ""
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self.set_button_text()
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self.emit("accel-edited")
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return True
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accel_string = Gtk.accelerator_name( event.keyval, event.state )
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accel_string = self.sanitize(accel_string)
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self.value = accel_string
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self.set_button_text()
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self.teaching = False
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self.emit("accel-edited")
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return True
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def sanitize(self, string):
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accel_string = string.replace("<Mod2>", "")
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accel_string = accel_string.replace("<Mod4>", "")
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for single, mod in SPECIAL_MODS:
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if single in accel_string and mod in accel_string:
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accel_string = accel_string.replace(mod, "")
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return accel_string
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def get_val(self):
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return self.value
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def set_val(self, value):
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self.value = value
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self.set_button_text()
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def ungrab(self):
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Gdk.keyboard_ungrab(Gdk.CURRENT_TIME)
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def set_button_text(self):
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if self.value == "":
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self.button.set_label(_("<not set>"))
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else:
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self.button.set_label(self.value)
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