Source code for libqtile.widget.window_count

# Copyright (c) 2020 elParaguayo
#
# 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 typing import Any, List, Tuple

from libqtile import bar, hook
from libqtile.widget import base


[docs]class WindowCount(base._TextBox): """ A simple widget to display the number of windows in the current group of the screen on which the widget is. """ orientations = base.ORIENTATION_HORIZONTAL defaults = [ ("font", "sans", "Text font"), ("fontsize", None, "Font pixel size. Calculated if None."), ("fontshadow", None, "font shadow color, default is None(no shadow)"), ("padding", None, "Padding left and right. Calculated if None."), ("foreground", "#ffffff", "Foreground colour."), ("text_format", "{num}", "Format for message"), ("show_zero", False, "Show window count when no windows") ] # type: List[Tuple[str, Any, str]] def __init__(self, text=" ", width=bar.CALCULATED, **config): base._TextBox.__init__(self, text=text, width=width, **config) self.add_defaults(WindowCount.defaults) self._count = 0 def _configure(self, qtile, bar): base._TextBox._configure(self, qtile, bar) self._setup_hooks() self._wincount() def _setup_hooks(self): hook.subscribe.client_killed(self._win_killed) hook.subscribe.client_managed(self._wincount) hook.subscribe.current_screen_change(self._wincount) hook.subscribe.setgroup(self._wincount) def _wincount(self, *args): try: self._count = len(self.bar.screen.group.windows) except AttributeError: self._count = 0 self.update(self.text_format.format(num=self._count)) def _win_killed(self, window): try: self._count = len(self.bar.screen.group.windows) if window.group == self.bar.screen.group: self._count -= 1 except AttributeError: self._count = 0 self.update(self.text_format.format(num=self._count)) def calculate_length(self): if self.text and (self._count or self.show_zero): return min( self.layout.width, self.bar.width ) + self.actual_padding * 2 else: return 0 def cmd_get(self): """Retrieve the current text.""" return self.text