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# -*- coding: utf-8 -*-
from django.utils.translation import get_language
from django.utils.encoding import smart_str
class Menu(object):
namespace = None
def __init__(self):
if not self.namespace:
self.namespace = self.__class__.__name__
def get_nodes(self, request):
"""
should return a list of NavigationNode instances
"""
raise NotImplementedError
class Modifier(object):
def modify(self, request, nodes, namespace, root_id, post_cut, breadcrumb):
pass
class NavigationNode(object):
def __init__(self, title, url, id, parent_id=None, parent_namespace=None, attr=None, visible=True):
self.children = [] # do not touch
self.parent = None # do not touch, code depends on this
self.namespace = None # TODO: Assert why we need this and above
self.title = title
self.url = self._remove_current_root(url)
self.id = id
self.parent_id = parent_id
self.parent_namespace = parent_namespace
self.visible = visible
if attr:
self.attr = attr
else:
self.attr = {} # To avoid declaring a dict in defaults...
def __repr__(self):
return "<Navigation Node: %s>" % smart_str(self.title)
def _remove_current_root(self, url):
current_root = "/%s/" % get_language()
if url[:len(current_root)] == current_root:
url = url[len(current_root) - 1:]
return url
def get_menu_title(self):
return self.title
def get_absolute_url(self):
return self.url
def get_attribute(self, name):
return self.attr[name]
def get_descendants(self):
nodes = []
for node in self.children:
nodes.append(node)
nodes += node.get_descendants()
return nodes
def get_ancestors(self):
nodes = []
if getattr(self, 'parent', None):
nodes.append(self.parent)
nodes += self.parent.get_ancestors()
return nodes
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