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# pylint: disable=C0111,R0903
"""Displays and changes the current keyboard layout
Requires the following executable:
* setxkbmap
contributed by `Pseudonick47 <https://github.com/Pseudonick47>`_ - many thanks!
"""
import core.module
import core.widget
import core.input
import util.cli
class Module(core.module.Module):
def __init__(self, config, theme):
super().__init__(config, theme, core.widget.Widget(self.current_layout))
core.input.register(self, button=core.input.LEFT_MOUSE, cmd=self.__next_keymap)
core.input.register(self, button=core.input.RIGHT_MOUSE, cmd=self.__prev_keymap)
def __next_keymap(self, event):
self._set_keymap(1)
def __prev_keymap(self, event):
self._set_keymap(-1)
def _set_keymap(self, rotation):
layouts = self.get_layouts()
if len(layouts) == 1:
return # nothing to do
layouts = layouts[rotation:] + layouts[:rotation]
layout_list = []
variant_list = []
for l in layouts:
tmp = l.split(":")
layout_list.append(tmp[0])
variant_list.append(tmp[1] if len(tmp) > 1 else "")
util.cli.execute(
"setxkbmap -layout {} -variant {}".format(
",".join(layout_list), ",".join(variant_list)
),
ignore_errors=True,
)
def get_layouts(self):
try:
res = util.cli.execute("setxkbmap -query")
except RuntimeError:
return ["n/a"]
layouts = []
variants = []
for line in res.split("\n"):
if not line:
continue
if "layout" in line:
layouts = line.split(":")[1].strip().split(",")
if "variant" in line:
variants = line.split(":")[1].strip().split(",")
result = []
for idx, layout in enumerate(layouts):
if len(variants) > idx and variants[idx]:
layout = "{}:{}".format(layout, variants[idx])
result.append(layout)
return result if len(result) > 0 else ["n/a"]
def current_layout(self, widget):
layouts = self.get_layouts()
return layouts[0]
# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
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