##// END OF EJS Templates
go to appropriate line when coming from another cell...
go to appropriate line when coming from another cell Sets the cursor on the last line of the cell when moved up from the top of the cell below, and sets the cursors to the first line when moving down from the bottom of a last line. Here, we retain the character that the cursor was on, so that users wishing to have up-down functionality like one document can still use this shortcut handler and simple adjust the at_top and at_bottom methods

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handlers.py
90 lines | 3.3 KiB | text/x-python | PythonLexer
"""Tornado handlers for the live notebook view.
Authors:
* Brian Granger
"""
#-----------------------------------------------------------------------------
# Copyright (C) 2011 The IPython Development Team
#
# Distributed under the terms of the BSD License. The full license is in
# the file COPYING, distributed as part of this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
import os
from tornado import web
HTTPError = web.HTTPError
from ..base.handlers import IPythonHandler, notebook_path_regex, path_regex
from ..utils import url_path_join, url_escape
#-----------------------------------------------------------------------------
# Handlers
#-----------------------------------------------------------------------------
class NotebookHandler(IPythonHandler):
@web.authenticated
def get(self, path='', name=None):
"""get renders the notebook template if a name is given, or
redirects to the '/files/' handler if the name is not given."""
path = path.strip('/')
nbm = self.notebook_manager
if name is None:
raise web.HTTPError(500, "This shouldn't be accessible: %s" % self.request.uri)
# a .ipynb filename was given
if not nbm.notebook_exists(name, path):
raise web.HTTPError(404, u'Notebook does not exist: %s/%s' % (path, name))
name = url_escape(name)
path = url_escape(path)
self.write(self.render_template('notebook.html',
project=self.project_dir,
notebook_path=path,
notebook_name=name,
kill_kernel=False,
mathjax_url=self.mathjax_url,
)
)
class NotebookRedirectHandler(IPythonHandler):
def get(self, path=''):
nbm = self.notebook_manager
if nbm.path_exists(path):
# it's a *directory*, redirect to /tree
url = url_path_join(self.base_url, 'tree', path)
else:
# otherwise, redirect to /files
if '/files/' in path:
# redirect without files/ iff it would 404
# this preserves pre-2.0-style 'files/' links
# FIXME: this is hardcoded based on notebook_path,
# but so is the files handler itself,
# so it should work until both are cleaned up.
parts = path.split('/')
files_path = os.path.join(nbm.notebook_dir, *parts)
self.log.warn("filespath: %s", files_path)
if not os.path.exists(files_path):
path = path.replace('/files/', '/', 1)
url = url_path_join(self.base_url, 'files', path)
url = url_escape(url)
self.log.debug("Redirecting %s to %s", self.request.path, url)
self.redirect(url)
#-----------------------------------------------------------------------------
# URL to handler mappings
#-----------------------------------------------------------------------------
default_handlers = [
(r"/notebooks%s" % notebook_path_regex, NotebookHandler),
(r"/notebooks%s" % path_regex, NotebookRedirectHandler),
]