bumblebee-status/bumblebee/modules/layout.py
Tobi-wan Kenobi 999547f794 [modules/layout] Re-enable keyboard layout switcher
Displays the current layout and allows switching to next/previous
configured layout via mouse clicks.
2016-12-11 15:00:13 +01:00

71 lines
2.2 KiB
Python

# pylint: disable=C0111,R0903
"""Displays and changes the current keyboard layout
Parameters:
* layout.lang: pipe-separated list of languages to cycle through (e.g. us|rs|de). Default: en
"""
import bumblebee.util
import bumblebee.input
import bumblebee.output
import bumblebee.engine
class Module(bumblebee.engine.Module):
def __init__(self, engine, config):
super(Module, self).__init__(engine, config,
bumblebee.output.Widget(full_text=self.layout)
)
self._languages = self.parameter("lang", "us").split("|")
self._idx = 0
engine.input.register_callback(self, button=bumblebee.input.LEFT_MOUSE,
cmd=self._next_keymap)
engine.input.register_callback(self, button=bumblebee.input.RIGHT_MOUSE,
cmd=self._prev_keymap)
def _next_keymap(self, event):
self._idx = (self._idx + 1) % len(self._languages)
self._set_keymap()
def _prev_keymap(self, event):
self._idx = self._idx - 1 if self._idx > 0 else len(self._languages) - 1
self._set_keymap()
def _set_keymap(self):
tmp = self._languages[self._idx].split(":")
layout = tmp[0]
variant = ""
if len(tmp) > 1:
variant = "-variant {}".format(tmp[1])
try:
bumblebee.util.execute("setxkbmap -layout {} {}".format(layout, variant))
except RuntimeError:
pass
def layout(self, widget):
try:
res = bumblebee.util.execute("setxkbmap -query")
except RuntimeError:
return "n/a"
layout = ""
variant = None
for line in res.split("\n"):
if not line:
continue
if "layout" in line:
layout = line.split(":")[1].strip()
if "variant" in line:
variant = line.split(":")[1].strip()
if variant:
layout += ":" + variant
if layout in self._languages:
self._idx = self._languages.index(layout)
else:
self._languages.append(layout)
self._idx = len(self._languages) - 1
return layout
# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4