##// END OF EJS Templates
Persistence API,...
Persistence API, This is a combination of 10 commits. Enable widget instanciation from front-end. Address @minrk 's review comments. Make API that allows users to persist widget state easily. Added support for view persistence Started adding support for model persistence. Half way there! Finished persistence API. Move persistence code into the widget framework. Fin. Bug fixes

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handlers.py
73 lines | 2.6 KiB | text/x-python | PythonLexer
"""Tornado handlers for the tree view."""
# Copyright (c) IPython Development Team.
# Distributed under the terms of the Modified BSD License.
from tornado import web
from ..base.handlers import IPythonHandler, path_regex
from ..utils import url_path_join, url_escape
class TreeHandler(IPythonHandler):
"""Render the tree view, listing notebooks, clusters, etc."""
def generate_breadcrumbs(self, path):
breadcrumbs = [(url_escape(url_path_join(self.base_url, 'tree')), '')]
comps = path.split('/')
ncomps = len(comps)
for i in range(ncomps):
if comps[i]:
link = url_escape(url_path_join(self.base_url, 'tree', *comps[0:i+1]))
breadcrumbs.append((link, comps[i]))
return breadcrumbs
def generate_page_title(self, path):
comps = path.split('/')
if len(comps) > 3:
for i in range(len(comps)-2):
comps.pop(0)
page_title = url_path_join(*comps)
if page_title:
return page_title+'/'
else:
return 'Home'
@web.authenticated
def get(self, path=''):
path = path.strip('/')
cm = self.contents_manager
if cm.dir_exists(path=path):
if cm.is_hidden(path):
self.log.info("Refusing to serve hidden directory, via 404 Error")
raise web.HTTPError(404)
breadcrumbs = self.generate_breadcrumbs(path)
page_title = self.generate_page_title(path)
self.write(self.render_template('tree.html',
page_title=page_title,
notebook_path=path,
breadcrumbs=breadcrumbs,
terminals_available=self.settings['terminals_available'],
))
elif cm.file_exists(path):
# it's not a directory, we have redirecting to do
model = cm.get(path, content=False)
# redirect to /api/notebooks if it's a notebook, otherwise /api/files
service = 'notebooks' if model['type'] == 'notebook' else 'files'
url = url_escape(url_path_join(
self.base_url, service, path,
))
self.log.debug("Redirecting %s to %s", self.request.path, url)
self.redirect(url)
else:
raise web.HTTPError(404)
#-----------------------------------------------------------------------------
# URL to handler mappings
#-----------------------------------------------------------------------------
default_handlers = [
(r"/tree%s" % path_regex, TreeHandler),
(r"/tree", TreeHandler),
]