bumblebee-status/core/theme.py
Tobias Witek d3fc648c08 [core/theme] Dynamically create theme accessors
Dynamically generate the accessors for a theme's attributes.

NB: This might be even nicer coming from a JSON rather than inside the
code.
2020-02-16 21:15:14 +01:00

58 lines
1.8 KiB
Python

import os
import io
import json
import core.event
THEME_BASE_DIR=os.path.dirname(os.path.realpath(__file__))
PATHS=[
'.',
os.path.join(THEME_BASE_DIR, '../themes'),
os.path.expanduser('~/.config/bumblebee-status/themes'),
]
class Theme(object):
def __init__(self, name='default', iconset=None, raw_data=None):
self.name = name
self.__widget_count = 0
if raw_data:
self.__data = raw_data
else:
self.__data = self.load(name)
core.event.register('start', self.__start)
core.event.register('next-widget', self.__next_widget)
for attr, default in [
('fg', None), ('bg', None),
('default-separators', True),
('separator-block-width', 0),
('separator', None)
]:
setattr(self, attr.replace('-', '_'), lambda widget=None, default=default, attr=attr: self.__get(widget, attr, default))
def load(self, name):
for path in PATHS:
theme_file = os.path.join(path, '{}.json'.format(name))
if os.path.isfile(theme_file):
with io.open(theme_file, encoding='utf-8') as data:
return json.load(data)
raise RuntimeError('unable to find theme {}'.format(name))
def __start(self):
self.__widget_count = 0
def __next_widget(self):
self.__widget_count = self.__widget_count + 1
def __get(self, widget, key, default=None):
value = default
for option in ['defaults', 'cycle']:
if option in self.__data:
tmp = self.__data[option]
if isinstance(tmp, list):
tmp = tmp[self.__widget_count % len(tmp)]
value = tmp.get(key, value)
return value
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