49 lines
1.6 KiB
Python
49 lines
1.6 KiB
Python
"""
|
|
Wrapper for loading templates from "templates" directories in panel modules.
|
|
"""
|
|
|
|
import os
|
|
|
|
from django.conf import settings # noqa
|
|
from django.template.base import TemplateDoesNotExist # noqa
|
|
from django.template.loader import BaseLoader # noqa
|
|
from django.utils._os import safe_join # noqa
|
|
|
|
# Set up a cache of the panel directories to search.
|
|
panel_template_dirs = {}
|
|
|
|
|
|
class TemplateLoader(BaseLoader):
|
|
is_usable = True
|
|
|
|
def get_template_sources(self, template_name):
|
|
bits = template_name.split(os.path.sep, 2)
|
|
if len(bits) == 3:
|
|
dash_name, panel_name, remainder = bits
|
|
key = os.path.join(dash_name, panel_name)
|
|
if key in panel_template_dirs:
|
|
template_dir = panel_template_dirs[key]
|
|
try:
|
|
yield safe_join(template_dir, panel_name, remainder)
|
|
except UnicodeDecodeError:
|
|
# The template dir name wasn't valid UTF-8.
|
|
raise
|
|
except ValueError:
|
|
# The joined path was located outside of template_dir.
|
|
pass
|
|
|
|
def load_template_source(self, template_name, template_dirs=None):
|
|
for path in self.get_template_sources(template_name):
|
|
try:
|
|
file = open(path)
|
|
try:
|
|
return (file.read().decode(settings.FILE_CHARSET), path)
|
|
finally:
|
|
file.close()
|
|
except IOError:
|
|
pass
|
|
raise TemplateDoesNotExist(template_name)
|
|
|
|
|
|
_loader = TemplateLoader()
|