a Django-based indieweb.org site https://00dani.me/
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from itertools import chain
from django.core.files.storage import default_storage
class Favicon:
def __init__(self, size, rel='icon', mime='image/png'):
self.rel = rel
self.mime = mime
if not isinstance(size, tuple):
size = (size, size)
self.size = size
@property
def url(self):
return default_storage.url('favicon/' + self.filename)
@property
def filename(self):
return 'favicon-{0}.png'.format(*self.size)
@property
def sizes(self):
return 'x'.join(str(s) for s in self.size)
tile_sizes = {'small': 128, 'medium': 270, 'wide': (558, 270), 'large': 558}
class Tile(Favicon):
def __init__(self, size_name):
super().__init__(tile_sizes[size_name])
self.size_name = size_name
@property
def filename(self):
return '{0}tile.png'.format(self.size_name)
sizes = (32, 57, 76, 96, 120, 128, 144, 180, 195, 228)
icons = tuple(chain(
(Favicon(s) for s in sizes),
(Tile(s) for s in tile_sizes.keys()),
(Favicon(152, rel='apple-touch-icon-precomposed'),
Favicon(196, rel='shortcut icon'))
))