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from django.core.urlresolvers import reverse
from django.template.defaultfilters import slugify
from django import template
from forum.utils import html
from forum.models.user import AnonymousUser
from ui import Registry
from copy import copy
class Visibility(object):
def __init__(self, level='public', negated=False):
if level not in ['public', 'authenticated', 'staff', 'superuser', 'owner']:
try:
int(level)
self.by_reputation = True
except:
raise "Invalid visibility level for ui object: %s" % level
else:
self.by_reputation = False
self.level = level
self.negated = negated
def show_to(self, user):
if self.by_reputation:
res = user.is_authenticated() and (user.reputation >= int(self.level) or user.is_staff or user.is_superuser)
else:
res = self.level == 'public' or (user.is_authenticated() and (
self.level == 'authenticated' or (
self.level == 'superuser' and user.is_superuser) or (
self.level == 'staff' and (user.is_staff or user.is_superuser)) or (
self.level == 'owner' and user.is_siteowner)))
if self.negated:
return not res
else:
return res
def __invert__(self):
return Visibility(self.level, not self.negated)
Visibility.PUBLIC = Visibility('public')
Visibility.AUTHENTICATED = Visibility('authenticated')
Visibility.STAFF = Visibility('staff')
Visibility.SUPERUSER = Visibility('superuser')
Visibility.OWNER = Visibility('owner')
Visibility.REPUTED = lambda r: Visibility(r)
class Url(object):
def __init__(self, url_pattern):
self.url_pattern = url_pattern
def __call__(self, u, c):
return reverse(self.url_pattern)
class ObjectBase(object):
class Argument(object):
def __init__(self, argument):
self.argument = argument
def __call__(self, context):
if callable(self.argument):
user = context.get('request', None) and context['request'].user or AnonymousUser()
return self.argument(user, context)
else:
return self.argument
def __init__(self, visibility=None, weight=500, name=''):
self.visibility = visibility
self.weight = weight
self.name = name
def _visible_to(self, user):
return (not self.visibility) or (self.visibility and self.visibility.show_to(user))
def can_render(self, context):
try:
return self._visible_to(context['request'].user)
except KeyError:
try:
return self._visible_to(context['viewer'])
except KeyError:
return self._visible_to(AnonymousUser())
def render(self, context):
return ''
class LoopBase(ObjectBase):
def update_context(self, context):
pass
class Link(ObjectBase):
def __init__(self, text, url, attrs=None, pre_code='', post_code='', visibility=None, weight=500, name=''):
super(Link, self).__init__(visibility, weight, name)
self.text = self.Argument(text)
self.url = self.Argument(url)
self.attrs = self.Argument(attrs or {})
self.pre_code = self.Argument(pre_code)
self.post_code = self.Argument(post_code)
def render(self, context):
return "%s %s %s" % (self.pre_code(context),
html.hyperlink(self.url(context), self.text(context), **self.attrs(context)),
self.post_code(context))
class Include(ObjectBase):
def __init__(self, tpl, visibility=None, weight=500, name=''):
super(Include, self).__init__(visibility, weight, name)
self.template = template.loader.get_template(tpl)
def render(self, context):
if not isinstance(context, template.Context):
context = template.Context(context)
return self.template.render(context)
class LoopContext(LoopBase):
def __init__(self, loop_context, visibility=None, weight=500, name=''):
super(LoopContext, self).__init__(visibility, weight, name)
self.loop_context = self.Argument(loop_context)
def update_context(self, context):
context.update(self.loop_context(context))
class PageTab(LoopBase):
def __init__(self, tab_name, tab_title, url_getter, weight, name=''):
super(PageTab, self).__init__(weight=weight, name=name)
self.tab_name = tab_name
self.tab_title = tab_title
self.url_getter = url_getter
def update_context(self, context):
context.update(dict(
tab_name=self.tab_name,
tab_title=self.tab_title,
tab_url=self.url_getter()
))
class ProfileTab(LoopBase):
def __init__(self, name, title, description, url_getter, private=False, render_to=None, weight=500):
super(ProfileTab, self).__init__(weight=weight, name=name)
self.name = name
self.title = title
self.description = description
self.url_getter = url_getter
self.private = private
self.render_to = render_to
def can_render(self, context):
return (not self.render_to or (self.render_to(context['view_user']))) and (
not self.private or (
context['view_user'] == context['request'].user or context['request'].user.is_superuser))
def update_context(self, context):
context.update(dict(
tab_name=self.name,
tab_title=self.title,
tab_description = self.description,
tab_url=self.url_getter(context['view_user'])
))
class AjaxMenuItem(ObjectBase):
def __init__(self, label, url, a_attrs=None, span_label='', span_attrs=None, visibility=None, weight=500, name=''):
super(AjaxMenuItem, self).__init__(visibility, weight, name)
self.label = self.Argument(label)
self.url = self.Argument(url)
self.a_attrs = self.Argument(a_attrs or {})
self.span_label = self.Argument(span_label)
self.span_attrs = self.Argument(span_attrs or {})
def render(self, context):
return html.buildtag('li',
html.buildtag('span', self.span_label(context), **self.span_attrs(context)) + \
html.hyperlink(self.url(context), self.label(context), **self.a_attrs(context)),
**{'class': 'item'})
class AjaxMenuGroup(ObjectBase, Registry):
def __init__(self, label, items, visibility=None, weight=500, name=''):
super(AjaxMenuGroup, self).__init__(visibility, weight, name)
self.label = label
for item in items:
self.add(item)
def can_render(self, context):
if super(AjaxMenuGroup, self).can_render(context):
for item in self:
if item.can_render(context): return True
return False
def render(self, context):
return html.buildtag('li', self.label, **{'class': 'separator'}) + "".join([
item.render(context) for item in self if item.can_render(context)
])
class UserMenuItem(AjaxMenuItem):
def __init__(self, render_to=None, *args, **kwargs):
super(UserMenuItem, self).__init__(*args, **kwargs)
self.render_to = render_to
def can_render(self, context):
return (not self.render_to or (self.render_to(context['user']))) and super(UserMenuItem, self)._visible_to(context['viewer'])