qutebrowser-xkbswitch dirty hack

mainwindow-xkbd-hack-1.4.2.patch

diff --git a/qutebrowser/mainwindow/mainwindow.py b/qutebrowser/mainwindow/mainwindow.py
index 3fdad13d1..5ca369a9a 100644
--- a/qutebrowser/mainwindow/mainwindow.py
+++ b/qutebrowser/mainwindow/mainwindow.py
@@ -38,6 +38,7 @@ from qutebrowser.keyinput import modeman
 from qutebrowser.browser import commands, downloadview, hints, downloads
 from qutebrowser.misc import crashsignal, keyhintwidget
 
+from qutebrowser.plugins import xkbswitch
 
 win_id_gen = itertools.count(0)
 
@@ -225,6 +226,8 @@ class MainWindow(QWidget):
         self._messageview = messageview.MessageView(parent=self)
         self._add_overlay(self._messageview, self._messageview.update_geometry)
 
+        self._xkb_switch = xkbswitch.XkbSwitchPlugin(win_id=self.win_id, parent=self)
+
         self._init_geometry(geometry)
         self._connect_signals()
 
@@ -445,6 +448,10 @@ class MainWindow(QWidget):
         mode_manager.left.connect(cmd.on_mode_left)
         mode_manager.left.connect(message.global_bridge.mode_left)
 
+        # xkbswitch
+        mode_manager.entered.connect(self._xkb_switch.on_mode_entered)
+        mode_manager.left.connect(self._xkb_switch.on_mode_left)
+
         # commands
         keyparsers[usertypes.KeyMode.normal].keystring_updated.connect(
             status.keystring.setText)

xkbswitch.py

# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:

from ctypes import CDLL, c_char_p
from PyQt5.QtCore import pyqtSlot, QObject
from qutebrowser.utils.usertypes import KeyMode

class XkbSwitchPlugin(QObject):

    def __init__(self, *, win_id, parent=None):
        super().__init__(parent)
        self._xkb_lib = CDLL('/usr/local/lib/libxkbswitch.so')

        self._xget = self._xkb_lib.Xkb_Switch_getXkbLayout
        self._xget.restype = c_char_p
        self._xget.argtypes = c_char_p,

        self._xset = self._xkb_lib.Xkb_Switch_setXkbLayout
        self._xset.restype = c_char_p
        self._xset.argtypes = c_char_p,

        self._nlayout = b'us'
        self._ilayout = b'us'

    def _swap_layouts(self):
        temp = self._xget(None)
        self._xset(self._layout)
        self._layout = temp

    def _push_layout(self, layout):
        temp = self._xget(None)
        self._xset(layout)
        return temp

    @pyqtSlot(KeyMode)
    def on_mode_entered(self, mode):
        """Trigger switch on entering input mode."""
        if mode == KeyMode.insert:
            self._push_layout(self._ilayout)

    @pyqtSlot(KeyMode, KeyMode)
    def on_mode_left(self, old_mode, new_mode):
        """Trigger restore on leaving input mode."""
        if old_mode == KeyMode.insert:
            self._ilayout = self._push_layout(self._nlayout)