96 lines
2.8 KiB
Python
96 lines
2.8 KiB
Python
"""get volume level or control it
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Requires the following executable:
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* amixer
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Parameters:
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* amixer.card: Sound Card to use (default is 0)
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* amixer.device: Device to use (default is Master,0)
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* amixer.percent_change: How much to change volume by when scrolling on the module (default is 4%)
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contributed by `zetxx <https://github.com/zetxx>`_ - many thanks!
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input handling contributed by `ardadem <https://github.com/ardadem>`_ - many thanks!
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multiple audio cards contributed by `hugoeustaquio <https://github.com/hugoeustaquio>`_ - many thanks!
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"""
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import re
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import core.module
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import core.widget
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import core.input
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import util.cli
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import util.format
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class Module(core.module.Module):
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def __init__(self, config, theme):
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super().__init__(config, theme, core.widget.Widget(self.volume))
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self.__level = "n/a"
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self.__muted = True
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self.__card = self.parameter("card", "0")
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self.__device = self.parameter("device", "Master,0")
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self.__change = util.format.asint(
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self.parameter("percent_change", "4%").strip("%"), 0, 100
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)
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events = [
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{
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"type": "mute",
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"action": self.toggle,
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"button": core.input.LEFT_MOUSE,
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},
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{
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"type": "volume",
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"action": self.increase_volume,
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"button": core.input.WHEEL_UP,
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},
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{
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"type": "volume",
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"action": self.decrease_volume,
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"button": core.input.WHEEL_DOWN,
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},
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]
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for event in events:
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core.input.register(self, button=event["button"], cmd=event["action"])
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def toggle(self, event):
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self.set_parameter("toggle")
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def increase_volume(self, event):
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self.set_parameter("{}%+".format(self.__change))
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def decrease_volume(self, event):
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self.set_parameter("{}%-".format(self.__change))
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def set_parameter(self, parameter):
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util.cli.execute("amixer -c {} -q set {} {}".format(self.__card, self.__device, parameter))
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def volume(self, widget):
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if self.__level == "n/a":
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return self.__level
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m = re.search(r"([\d]+)\%", self.__level)
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self.__muted = True
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if m:
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if m.group(1) != "0" and "[on]" in self.__level:
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self.__muted = False
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return "{}%".format(m.group(1))
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else:
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return "0%"
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def update(self):
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try:
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self.__level = util.cli.execute(
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"amixer -c {} get {}".format(self.__card, self.__device)
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)
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except Exception as e:
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self.__level = "n/a"
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def state(self, widget):
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if self.__muted:
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return ["warning", "muted"]
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return ["unmuted"]
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# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
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