105 lines
3.8 KiB
Python
105 lines
3.8 KiB
Python
# pylint: disable=C0111,R0903
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"""Displays information about the current song in cmus.
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Requires the following executable:
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* cmus-remote
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Parameters:
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* cmus.format: Format string for the song information. Tag values can be put in curly brackets (i.e. {artist})
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* cmus.layout: Space-separated list of widgets to add. Possible widgets are the buttons/toggles cmus.prev, cmus.next, cmus.shuffle and cmus.repeat, and the main display with play/pause function cmus.main.
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"""
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from collections import defaultdict
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import string
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import bumblebee.util
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import bumblebee.input
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import bumblebee.output
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import bumblebee.engine
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from bumblebee.output import scrollable
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class Module(bumblebee.engine.Module):
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def __init__(self, engine, config):
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super(Module, self).__init__(engine, config, [])
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self._layout = self.parameter("layout", "cmus.prev cmus.main cmus.next cmus.shuffle cmus.repeat")
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self._fmt = self.parameter("format", "{artist} - {title} {position}/{duration}")
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self._status = None
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self._shuffle = False
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self._repeat = False
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self._tags = defaultdict(lambda: '')
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# Create widgets
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widget_list = []
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widget_map = {}
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for widget_name in self._layout.split():
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widget = bumblebee.output.Widget(name=widget_name)
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widget_list.append(widget)
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if widget_name == "cmus.prev":
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widget_map[widget] = {"button": bumblebee.input.LEFT_MOUSE, "cmd": "cmus-remote -r"}
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elif widget_name == "cmus.main":
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widget_map[widget] = {"button": bumblebee.input.LEFT_MOUSE, "cmd": "cmus-remote -u"}
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widget.full_text(self.description)
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elif widget_name == "cmus.next":
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widget_map[widget] = {"button": bumblebee.input.LEFT_MOUSE, "cmd": "cmus-remote -n"}
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elif widget_name == "cmus.shuffle":
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widget_map[widget] = {"button": bumblebee.input.LEFT_MOUSE, "cmd": "cmus-remote -S"}
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elif widget_name == "cmus.repeat":
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widget_map[widget] = {"button": bumblebee.input.LEFT_MOUSE, "cmd": "cmus-remote -R"}
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else:
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raise KeyError("The cmus module does not support a {widget_name!r} widget".format(widget_name=widget_name))
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self.widgets(widget_list)
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# Register input callbacks
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for widget, callback_options in widget_map.items():
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engine.input.register_callback(widget, **callback_options)
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def hidden(self):
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return self._status is None
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@scrollable
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def description(self, widget):
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return string.Formatter().vformat(self._fmt, (), self._tags)
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def update(self, widgets):
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self._load_song()
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def state(self, widget):
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returns = {
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"cmus.shuffle": "shuffle-on" if self._shuffle else "shuffle-off",
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"cmus.repeat": "repeat-on" if self._repeat else "repeat-off",
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"cmus.prev": "prev",
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"cmus.next": "next",
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}
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return returns.get(widget.name, self._status)
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def _eval_line(self, line):
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name, key, value = (line.split(" ", 2) + [None, None])[:3]
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if name == "status":
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self._status = key
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if name == "tag":
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self._tags.update({key: value})
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if name in ["duration", "position"]:
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self._tags.update({name: bumblebee.util.durationfmt(int(key))})
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if name == "set" and key == "repeat":
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self._repeat = value == "true"
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if name == "set" and key == "shuffle":
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self._shuffle = value == "true"
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def _load_song(self):
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info = ""
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try:
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info = bumblebee.util.execute("cmus-remote -Q")
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except RuntimeError:
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self._status = None
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self._tags = defaultdict(lambda: '')
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for line in info.split("\n"):
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self._eval_line(line)
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# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
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