54 lines
1.7 KiB
Python
54 lines
1.7 KiB
Python
from .functional import cached
|
|
|
|
|
|
class Plugin(object):
|
|
verbose_name = None
|
|
# Used on select plugin view
|
|
class_verbose_name = None
|
|
icon = None
|
|
|
|
@classmethod
|
|
def get_plugin_name(cls):
|
|
return cls.__name__
|
|
|
|
@classmethod
|
|
def get_plugins(cls):
|
|
return cls.plugins
|
|
|
|
@classmethod
|
|
@cached
|
|
def get_plugin(cls, name):
|
|
for plugin in cls.get_plugins():
|
|
if plugin.get_plugin_name() == name:
|
|
return plugin
|
|
raise KeyError('This plugin is not registered')
|
|
|
|
@classmethod
|
|
def get_plugin_choices(cls):
|
|
plugins = cls.get_plugins()
|
|
choices = []
|
|
for p in plugins:
|
|
# don't evaluate p.verbose_name ugettext_lazy
|
|
verbose = getattr(p.verbose_name, '_proxy____args', [p.verbose_name])
|
|
if verbose[0]:
|
|
verbose = p.verbose_name
|
|
else:
|
|
verbose = p.get_plugin_name()
|
|
choices.append((p.get_plugin_name(), verbose))
|
|
return sorted(choices, key=lambda e: e[0])
|
|
|
|
|
|
class PluginMount(type):
|
|
def __init__(cls, name, bases, attrs):
|
|
if not hasattr(cls, 'plugins'):
|
|
# This branch only executes when processing the mount point itself.
|
|
# So, since this is a new plugin type, not an implementation, this
|
|
# class shouldn't be registered as a plugin. Instead, it sets up a
|
|
# list where plugins can be registered later.
|
|
cls.plugins = []
|
|
else:
|
|
# This must be a plugin implementation, which should be registered.
|
|
# Simply appending it to the list is all that's needed to keep
|
|
# track of it later.
|
|
cls.plugins.append(cls)
|