from django.template.defaultfilters import filesizeformat
from django.contrib.staticfiles.templatetags.staticfiles import static
FILE_STUB_IMAGE = 'images/file.png'
FILE_TYPE_WEBM = 'webm'
FILE_TYPE_SVG = 'svg'
FILE_TYPES_AUDIO = (
'ogg',
'mp3',
)
def get_viewers():
return AbstractViewer.__subclasses__()
class AbstractViewer:
def __init__(self, file, file_type):
self.file = file
self.file_type = file_type
@staticmethod
def supports(file_type):
return True
def get_view(self):
return '
'.format(self.file.url, static(FILE_STUB_IMAGE),
self.file_type, filesizeformat(self.file.size))
class WebmViewer(AbstractViewer):
@staticmethod
def supports(file_type):
return file_type == FILE_TYPE_WEBM
def get_view(self):
return ''\
''\
'
'.format(self.file.url)
class AudioViewer(AbstractViewer):
@staticmethod
def supports(file_type):
return file_type in FILE_TYPES_AUDIO
def get_view(self):
return ''.format(self.file.url)
class SvgViewer(AbstractViewer):
@staticmethod
def supports(file_type):
return file_type == FILE_TYPE_SVG
def get_view(self):
return ''.format(self.file.url, self.file.url)