Server side logic for directories.

IPython/html/services/notebooks/filenbmanager.py

@@ -1,418 +1,451
 """A notebook manager that uses the local file system for storage.
 
 Authors:
 
 * Brian Granger
 * Zach Sailer
 """
 
 #-----------------------------------------------------------------------------
 #  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 io
 import itertools
 import os
 import glob
 import shutil
 
 from tornado import web
 
 from .nbmanager import NotebookManager
 from IPython.nbformat import current
 from IPython.utils.traitlets import Unicode, Dict, Bool, TraitError
 from IPython.utils import tz
 
 #-----------------------------------------------------------------------------
 # Classes
 #-----------------------------------------------------------------------------
 
 class FileNotebookManager(NotebookManager):
     
     save_script = Bool(False, config=True,
         help="""Automatically create a Python script when saving the notebook.
         
         For easier use of import, %run and %load across notebooks, a
         <notebook-name>.py script will be created next to any
         <notebook-name>.ipynb on each save.  This can also be set with the
         short `--script` flag.
         """
     )
     
     checkpoint_dir = Unicode(config=True,
         help="""The location in which to keep notebook checkpoints
         
         By default, it is notebook-dir/.ipynb_checkpoints
         """
     )
     def _checkpoint_dir_default(self):
         return os.path.join(self.notebook_dir, '.ipynb_checkpoints')
     
     def _checkpoint_dir_changed(self, name, old, new):
         """do a bit of validation of the checkpoint dir"""
         if not os.path.isabs(new):
             # If we receive a non-absolute path, make it absolute.
             abs_new = os.path.abspath(new)
             self.checkpoint_dir = abs_new
             return
         if os.path.exists(new) and not os.path.isdir(new):
             raise TraitError("checkpoint dir %r is not a directory" % new)
         if not os.path.exists(new):
             self.log.info("Creating checkpoint dir %s", new)
             try:
                 os.mkdir(new)
             except:
                 raise TraitError("Couldn't create checkpoint dir %r" % new)
 
     def get_notebook_names(self, path=''):
         """List all notebook names in the notebook dir and path."""
         path = path.strip('/')
         if not os.path.isdir(self.get_os_path(path=path)):
             raise web.HTTPError(404, 'Directory not found: ' + path)
         names = glob.glob(self.get_os_path('*'+self.filename_ext, path))
         names = [os.path.basename(name)
                  for name in names]
         return names
 
     def increment_filename(self, basename, path='', ext='.ipynb'):
         """Return a non-used filename of the form basename<int>."""
         path = path.strip('/')
         for i in itertools.count():
             name = u'{basename}{i}{ext}'.format(basename=basename, i=i, ext=ext)
             os_path = self.get_os_path(name, path)
             if not os.path.isfile(os_path):
                 break
         return name
 
     def path_exists(self, path):
         """Does the API-style path (directory) actually exist?
         
         Parameters
         ----------
         path : string
             The path to check. This is an API path (`/` separated,
             relative to base notebook-dir).
         
         Returns
         -------
         exists : bool
             Whether the path is indeed a directory.
         """
         path = path.strip('/')
         os_path = self.get_os_path(path=path)
         return os.path.isdir(os_path)
     
     def get_os_path(self, name=None, path=''):
         """Given a notebook name and a URL path, return its file system
         path.
 
         Parameters
         ----------
         name : string
             The name of a notebook file with the .ipynb extension
         path : string
             The relative URL path (with '/' as separator) to the named
             notebook.
 
         Returns
         -------
         path : string
             A file system path that combines notebook_dir (location where
             server started), the relative path, and the filename with the
             current operating system's url.
         """
         parts = path.strip('/').split('/')
         parts = [p for p in parts if p != ''] # remove duplicate splits
         if name is not None:
             parts.append(name)
         path = os.path.join(self.notebook_dir, *parts)
         return path
 
     def notebook_exists(self, name, path=''):
         """Returns a True if the notebook exists. Else, returns False.
 
         Parameters
         ----------
         name : string
             The name of the notebook you are checking.
         path : string
             The relative path to the notebook (with '/' as separator)
 
         Returns
         -------
         bool
         """
         path = path.strip('/')
         nbpath = self.get_os_path(name, path=path)
         return os.path.isfile(nbpath)
 
+    def list_dirs(self, path):
+        """List the directories for a given API style path."""
+        path = path.strip('/')
+        os_path = self.get_os_path('', path)
+        dir_names = os.listdir(os_path)
+        dirs = []
+        for name in dir_names:
+            os_path = self.get_os_path(name, path)
+            if os.path.isdir(os_path) and not name.startswith('.'):
+                model = self.get_dir_model(name, path)
+                dirs.append(model)
+        dirs = sorted(dirs, key=lambda item: item['name'])
+        return dirs
+
+    def get_dir_model(self, name, path=''):
+        """Get the directory model given a directory name and its API style path"""
+        path = path.strip('/')
+        os_path = self.get_os_path(name, path)
+        if not os.path.isdir(os_path):
+            raise IOError('directory does not exist: %r' % os_path)
+        info = os.stat(os_path)
+        last_modified = tz.utcfromtimestamp(info.st_mtime)
+        created = tz.utcfromtimestamp(info.st_ctime)
+        # Create the notebook model.
+        model ={}
+        model['name'] = name
+        model['path'] = path
+        model['last_modified'] = last_modified
+        model['created'] = created
+        model['type'] = 'directory'
+        return model
+
     def list_notebooks(self, path):
         """Returns a list of dictionaries that are the standard model
         for all notebooks in the relative 'path'.
         
         Parameters
         ----------
         path : str
             the URL path that describes the relative path for the
             listed notebooks
         
         Returns
         -------
         notebooks : list of dicts
             a list of the notebook models without 'content'
         """
         path = path.strip('/')
         notebook_names = self.get_notebook_names(path)
         notebooks = []
         for name in notebook_names:
             model = self.get_notebook_model(name, path, content=False)
             notebooks.append(model)
         notebooks = sorted(notebooks, key=lambda item: item['name'])
+        notebooks = self.list_dirs(path) + notebooks
         return notebooks
 
     def get_notebook_model(self, name, path='', content=True):
         """ Takes a path and name for a notebook and returns its model
         
         Parameters
         ----------
         name : str
             the name of the notebook
         path : str
             the URL path that describes the relative path for
             the notebook
             
         Returns
         -------
         model : dict
             the notebook model. If contents=True, returns the 'contents' 
             dict in the model as well.
         """
         path = path.strip('/')
         if not self.notebook_exists(name=name, path=path):
             raise web.HTTPError(404, u'Notebook does not exist: %s' % name)
         os_path = self.get_os_path(name, path)
         info = os.stat(os_path)
         last_modified = tz.utcfromtimestamp(info.st_mtime)
         created = tz.utcfromtimestamp(info.st_ctime)
         # Create the notebook model.
         model ={}
         model['name'] = name
         model['path'] = path
         model['last_modified'] = last_modified
         model['created'] = created
         if content:
             with io.open(os_path, 'r', encoding='utf-8') as f:
                 try:
                     nb = current.read(f, u'json')
                 except Exception as e:
                     raise web.HTTPError(400, u"Unreadable Notebook: %s %s" % (os_path, e))
             self.mark_trusted_cells(nb, path, name)
             model['content'] = nb
         return model
 
     def save_notebook_model(self, model, name='', path=''):
         """Save the notebook model and return the model with no content."""
         path = path.strip('/')
 
         if 'content' not in model:
             raise web.HTTPError(400, u'No notebook JSON data provided')
         
         # One checkpoint should always exist
         if self.notebook_exists(name, path) and not self.list_checkpoints(name, path):
             self.create_checkpoint(name, path)
 
         new_path = model.get('path', path).strip('/')
         new_name = model.get('name', name)
 
         if path != new_path or name != new_name:
             self.rename_notebook(name, path, new_name, new_path)
 
         # Save the notebook file
         os_path = self.get_os_path(new_name, new_path)
         nb = current.to_notebook_json(model['content'])
         
         self.check_and_sign(nb, new_path, new_name)
         
         if 'name' in nb['metadata']:
             nb['metadata']['name'] = u''
         try:
             self.log.debug("Autosaving notebook %s", os_path)
             with io.open(os_path, 'w', encoding='utf-8') as f:
                 current.write(nb, f, u'json')
         except Exception as e:
             raise web.HTTPError(400, u'Unexpected error while autosaving notebook: %s %s' % (os_path, e))
 
         # Save .py script as well
         if self.save_script:
             py_path = os.path.splitext(os_path)[0] + '.py'
             self.log.debug("Writing script %s", py_path)
             try:
                 with io.open(py_path, 'w', encoding='utf-8') as f:
                     current.write(nb, f, u'py')
             except Exception as e:
                 raise web.HTTPError(400, u'Unexpected error while saving notebook as script: %s %s' % (py_path, e))
 
         model = self.get_notebook_model(new_name, new_path, content=False)
         return model
 
     def update_notebook_model(self, model, name, path=''):
         """Update the notebook's path and/or name"""
         path = path.strip('/')
         new_name = model.get('name', name)
         new_path = model.get('path', path).strip('/')
         if path != new_path or name != new_name:
             self.rename_notebook(name, path, new_name, new_path)
         model = self.get_notebook_model(new_name, new_path, content=False)
         return model
 
     def delete_notebook_model(self, name, path=''):
         """Delete notebook by name and path."""
         path = path.strip('/')
         os_path = self.get_os_path(name, path)
         if not os.path.isfile(os_path):
             raise web.HTTPError(404, u'Notebook does not exist: %s' % os_path)
         
         # clear checkpoints
         for checkpoint in self.list_checkpoints(name, path):
             checkpoint_id = checkpoint['id']
             cp_path = self.get_checkpoint_path(checkpoint_id, name, path)
             if os.path.isfile(cp_path):
                 self.log.debug("Unlinking checkpoint %s", cp_path)
                 os.unlink(cp_path)
         
         self.log.debug("Unlinking notebook %s", os_path)
         os.unlink(os_path)
 
     def rename_notebook(self, old_name, old_path, new_name, new_path):
         """Rename a notebook."""
         old_path = old_path.strip('/')
         new_path = new_path.strip('/')
         if new_name == old_name and new_path == old_path:
             return
         
         new_os_path = self.get_os_path(new_name, new_path)
         old_os_path = self.get_os_path(old_name, old_path)
 
         # Should we proceed with the move?
         if os.path.isfile(new_os_path):
             raise web.HTTPError(409, u'Notebook with name already exists: %s' % new_os_path)
         if self.save_script:
             old_py_path = os.path.splitext(old_os_path)[0] + '.py'
             new_py_path = os.path.splitext(new_os_path)[0] + '.py'
             if os.path.isfile(new_py_path):
                 raise web.HTTPError(409, u'Python script with name already exists: %s' % new_py_path)
 
         # Move the notebook file
         try:
             os.rename(old_os_path, new_os_path)
         except Exception as e:
             raise web.HTTPError(500, u'Unknown error renaming notebook: %s %s' % (old_os_path, e))
 
         # Move the checkpoints
         old_checkpoints = self.list_checkpoints(old_name, old_path)
         for cp in old_checkpoints:
             checkpoint_id = cp['id']
             old_cp_path = self.get_checkpoint_path(checkpoint_id, old_name, old_path)
             new_cp_path = self.get_checkpoint_path(checkpoint_id, new_name, new_path)
             if os.path.isfile(old_cp_path):
                 self.log.debug("Renaming checkpoint %s -> %s", old_cp_path, new_cp_path)
                 os.rename(old_cp_path, new_cp_path)
 
         # Move the .py script
         if self.save_script:
             os.rename(old_py_path, new_py_path)
   
     # Checkpoint-related utilities
     
     def get_checkpoint_path(self, checkpoint_id, name, path=''):
         """find the path to a checkpoint"""
         path = path.strip('/')
         basename, _ = os.path.splitext(name)
         filename = u"{name}-{checkpoint_id}{ext}".format(
             name=basename,
             checkpoint_id=checkpoint_id,
             ext=self.filename_ext,
         )
         cp_path = os.path.join(path, self.checkpoint_dir, filename)
         return cp_path
 
     def get_checkpoint_model(self, checkpoint_id, name, path=''):
         """construct the info dict for a given checkpoint"""
         path = path.strip('/')
         cp_path = self.get_checkpoint_path(checkpoint_id, name, path)
         stats = os.stat(cp_path)
         last_modified = tz.utcfromtimestamp(stats.st_mtime)
         info = dict(
             id = checkpoint_id,
             last_modified = last_modified,
         )
         return info
         
     # public checkpoint API
     
     def create_checkpoint(self, name, path=''):
         """Create a checkpoint from the current state of a notebook"""
         path = path.strip('/')
         nb_path = self.get_os_path(name, path)
         # only the one checkpoint ID:
         checkpoint_id = u"checkpoint"
         cp_path = self.get_checkpoint_path(checkpoint_id, name, path)
         self.log.debug("creating checkpoint for notebook %s", name)
         if not os.path.exists(self.checkpoint_dir):
             os.mkdir(self.checkpoint_dir)
         shutil.copy2(nb_path, cp_path)
         
         # return the checkpoint info
         return self.get_checkpoint_model(checkpoint_id, name, path)
     
     def list_checkpoints(self, name, path=''):
         """list the checkpoints for a given notebook
         
         This notebook manager currently only supports one checkpoint per notebook.
         """
         path = path.strip('/')
         checkpoint_id = "checkpoint"
         path = self.get_checkpoint_path(checkpoint_id, name, path)
         if not os.path.exists(path):
             return []
         else:
             return [self.get_checkpoint_model(checkpoint_id, name, path)]
         
     
     def restore_checkpoint(self, checkpoint_id, name, path=''):
         """restore a notebook to a checkpointed state"""
         path = path.strip('/')
         self.log.info("restoring Notebook %s from checkpoint %s", name, checkpoint_id)
         nb_path = self.get_os_path(name, path)
         cp_path = self.get_checkpoint_path(checkpoint_id, name, path)
         if not os.path.isfile(cp_path):
             self.log.debug("checkpoint file does not exist: %s", cp_path)
             raise web.HTTPError(404,
                 u'Notebook checkpoint does not exist: %s-%s' % (name, checkpoint_id)
             )
         # ensure notebook is readable (never restore from an unreadable notebook)
         with io.open(cp_path, 'r', encoding='utf-8') as f:
             nb = current.read(f, u'json')
         shutil.copy2(cp_path, nb_path)
         self.log.debug("copying %s -> %s", cp_path, nb_path)
     
     def delete_checkpoint(self, checkpoint_id, name, path=''):
         """delete a notebook's checkpoint"""
         path = path.strip('/')
         cp_path = self.get_checkpoint_path(checkpoint_id, name, path)
         if not os.path.isfile(cp_path):
             raise web.HTTPError(404,
                 u'Notebook checkpoint does not exist: %s%s-%s' % (path, name, checkpoint_id)
             )
         self.log.debug("unlinking %s", cp_path)
         os.unlink(cp_path)
     
     def info_string(self):
         return "Serving notebooks from local directory: %s" % self.notebook_dir

IPython/html/static/tree/js/notebooklist.js

@@ -1,403 +1,404
 //----------------------------------------------------------------------------
 //  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.
 //----------------------------------------------------------------------------
 
 //============================================================================
 // NotebookList
 //============================================================================
 
 var IPython = (function (IPython) {
     "use strict";
     
     var utils = IPython.utils;
 
     var NotebookList = function (selector) {
         this.selector = selector;
         if (this.selector !== undefined) {
             this.element = $(selector);
             this.style();
             this.bind_events();
         }
         this.notebooks_list = [];
         this.sessions = {};
     };
 
     NotebookList.prototype.baseProjectUrl = function () {
         return $('body').data('baseProjectUrl');
     };
 
     NotebookList.prototype.notebookPath = function() {
         return $('body').data('notebookPath');
     };
     
     NotebookList.prototype.style = function () {
         $('#notebook_toolbar').addClass('list_toolbar');
         $('#drag_info').addClass('toolbar_info');
         $('#notebook_buttons').addClass('toolbar_buttons');
         $('#notebook_list_header').addClass('list_header');
         this.element.addClass("list_container");
     };
 
 
     NotebookList.prototype.bind_events = function () {
         var that = this;
         $('#refresh_notebook_list').click(function () {
             that.load_list();
         });
         this.element.bind('dragover', function () {
             return false;
         });
         this.element.bind('drop', function(event){
             that.handelFilesUpload(event,'drop');
             return false;
         });
     };
 
     NotebookList.prototype.handelFilesUpload =  function(event, dropOrForm) {
         var that = this;
         var files;
         if(dropOrForm =='drop'){
             files = event.originalEvent.dataTransfer.files;
         } else 
         {
             files = event.originalEvent.target.files;
         }
         for (var i = 0; i < files.length; i++) {
             var f = files[i];
             var reader = new FileReader();
             reader.readAsText(f);
             var name_and_ext = utils.splitext(f.name);
             var nbname = name_and_ext[0];
             var file_ext = name_and_ext[1];
             if (file_ext === '.ipynb') {
                 var item = that.new_notebook_item(0);
                 that.add_name_input(nbname, item);
                 // Store the notebook item in the reader so we can use it later
                 // to know which item it belongs to.
                 $(reader).data('item', item);
                 reader.onload = function (event) {
                     var nbitem = $(event.target).data('item');
                     that.add_notebook_data(event.target.result, nbitem);
                     that.add_upload_button(nbitem);
                 };
             } else {
                 var dialog = 'Uploaded notebooks must be .ipynb files';
                 IPython.dialog.modal({
                     title : 'Invalid file type',
                     body : dialog,
                     buttons : {'OK' : {'class' : 'btn-primary'}}
                 });
             }
         }
         // Replace the file input form wth a clone of itself. This is required to
         // reset the form. Otherwise, if you upload a file, delete it and try to 
         // upload it again, the changed event won't fire.
         var form = $('input.fileinput');
         form.replaceWith(form.clone(true));
         return false;
     };
 
     NotebookList.prototype.clear_list = function () {
         this.element.children('.list_item').remove();
     };
 
     NotebookList.prototype.load_sessions = function(){
         var that = this;
         var settings = {
             processData : false,
             cache : false,
             type : "GET",
             dataType : "json",
             success : $.proxy(that.sessions_loaded, this)
         };
         var url = this.baseProjectUrl() + 'api/sessions';
         $.ajax(url,settings);
     };
 
 
     NotebookList.prototype.sessions_loaded = function(data){
         this.sessions = {};
         var len = data.length;
         if (len > 0) {
             for (var i=0; i<len; i++) {
                 var nb_path;
                 if (!data[i].notebook.path) {
                     nb_path = data[i].notebook.name;
                 }
                 else {
                     nb_path = utils.url_path_join(
                         data[i].notebook.path,
                         data[i].notebook.name
                     );
                 }
                 this.sessions[nb_path] = data[i].id;
             }
         }
         this.load_list();
     };
 
     NotebookList.prototype.load_list = function () {
         var that = this;
         var settings = {
             processData : false,
             cache : false,
             type : "GET",
             dataType : "json",
             success : $.proxy(this.list_loaded, this),
             error : $.proxy( function(){
                 that.list_loaded([], null, null, {msg:"Error connecting to server."});
                              },this)
         };
 
         var url = utils.url_join_encode(
                 this.baseProjectUrl(),
                 'api',
                 'notebooks',
                 this.notebookPath()
         );
         $.ajax(url, settings);
     };
 
 
     NotebookList.prototype.list_loaded = function (data, status, xhr, param) {
         var message = 'Notebook list empty.';
         if (param !== undefined && param.msg) {
             message = param.msg;
         }
+        console.log(data);
         var len = data.length;
         this.clear_list();
         if (len === 0) {
             $(this.new_notebook_item(0))
                 .append(
                     $('<div style="margin:auto;text-align:center;color:grey"/>')
                     .text(message)
                 );
         }
         for (var i=0; i<len; i++) {
             var name = data[i].name;
             var path = this.notebookPath();
             var nbname = utils.splitext(name)[0];
             var item = this.new_notebook_item(i);
             this.add_link(path, nbname, item);
             name = utils.url_path_join(path, name);
             if(this.sessions[name] === undefined){
                 this.add_delete_button(item);
             } else {
                 this.add_shutdown_button(item,this.sessions[name]);
             }
         }
     };
 
 
     NotebookList.prototype.new_notebook_item = function (index) {
         var item = $('<div/>').addClass("list_item").addClass("row-fluid");
         // item.addClass('list_item ui-widget ui-widget-content ui-helper-clearfix');
         // item.css('border-top-style','none');
         item.append($("<div/>").addClass("span12").append(
             $("<a/>").addClass("item_link").append(
                 $("<span/>").addClass("item_name")
             )
         ).append(
             $('<div/>').addClass("item_buttons btn-group pull-right")
         ));
         
         if (index === -1) {
             this.element.append(item);
         } else {
             this.element.children().eq(index).after(item);
         }
         return item;
     };
 
 
     NotebookList.prototype.add_link = function (path, nbname, item) {
         item.data('nbname', nbname);
         item.data('path', path);
         item.find(".item_name").text(nbname);
         item.find("a.item_link")
             .attr('href',
                 utils.url_join_encode(
                     this.baseProjectUrl(),
                     "notebooks",
                     path,
                     nbname + ".ipynb"
                 )
             ).attr('target','_blank');
     };
 
 
     NotebookList.prototype.add_name_input = function (nbname, item) {
         item.data('nbname', nbname);
         item.find(".item_name").empty().append(
             $('<input/>')
             .addClass("nbname_input")
             .attr('value', nbname)
             .attr('size', '30')
             .attr('type', 'text')
         );
     };
 
 
     NotebookList.prototype.add_notebook_data = function (data, item) {
         item.data('nbdata', data);
     };
 
 
     NotebookList.prototype.add_shutdown_button = function (item, session) {
         var that = this;
         var shutdown_button = $("<button/>").text("Shutdown").addClass("btn btn-mini").
             click(function (e) {
                 var settings = {
                     processData : false,
                     cache : false,
                     type : "DELETE",
                     dataType : "json",
                     success : function () {
                         that.load_sessions();
                     }
                 };
                 var url = utils.url_join_encode(
                     that.baseProjectUrl(),
                     'api/sessions',
                     session
                 );
                 $.ajax(url, settings);
                 return false;
             });
         // var new_buttons = item.find('a'); // shutdown_button;
         item.find(".item_buttons").text("").append(shutdown_button);
     };
 
     NotebookList.prototype.add_delete_button = function (item) {
         var new_buttons = $('<span/>').addClass("btn-group pull-right");
         var notebooklist = this;
         var delete_button = $("<button/>").text("Delete").addClass("btn btn-mini").
             click(function (e) {
                 // $(this) is the button that was clicked.
                 var that = $(this);
                 // We use the nbname and notebook_id from the parent notebook_item element's
                 // data because the outer scopes values change as we iterate through the loop.
                 var parent_item = that.parents('div.list_item');
                 var nbname = parent_item.data('nbname');
                 var message = 'Are you sure you want to permanently delete the notebook: ' + nbname + '?';
                 IPython.dialog.modal({
                     title : "Delete notebook",
                     body : message,
                     buttons : {
                         Delete : {
                             class: "btn-danger",
                             click: function() {
                                 var settings = {
                                     processData : false,
                                     cache : false,
                                     type : "DELETE",
                                     dataType : "json",
                                     success : function (data, status, xhr) {
                                         parent_item.remove();
                                     }
                                 };
                                 var url = utils.url_join_encode(
                                     notebooklist.baseProjectUrl(),
                                     'api/notebooks',
                                     notebooklist.notebookPath(),
                                     nbname + '.ipynb'
                                 );
                                 $.ajax(url, settings);
                             }
                         },
                         Cancel : {}
                     }
                 });
                 return false;
             });
         item.find(".item_buttons").text("").append(delete_button);
     };
 
 
     NotebookList.prototype.add_upload_button = function (item) {
         var that = this;
         var upload_button = $('<button/>').text("Upload")
             .addClass('btn btn-primary btn-mini upload_button')
             .click(function (e) {
                 var nbname = item.find('.item_name > input').val();
                 var path = that.notebookPath();
                 var nbdata = item.data('nbdata');
                 var content_type = 'application/json';
                 var model = {
                     content : JSON.parse(nbdata),
                 };
                 var settings = {
                     processData : false,
                     cache : false,
                     type : 'PUT',
                     dataType : 'json',
                     data : JSON.stringify(model),
                     headers : {'Content-Type': content_type},
                     success : function (data, status, xhr) {
                         that.add_link(path, nbname, item);
                         that.add_delete_button(item);
                     },
                     error : function (data, status, xhr) {
                         console.log(data, status);
                     }
                 };
 
                 var url = utils.url_join_encode(
                     that.baseProjectUrl(),
                     'api/notebooks',
                     that.notebookPath(),
                     nbname + '.ipynb'
                 );
                 $.ajax(url, settings);
                 return false;
             });
         var cancel_button = $('<button/>').text("Cancel")
             .addClass("btn btn-mini")
             .click(function (e) {
                 console.log('cancel click');
                 item.remove();
                 return false;
             });
         item.find(".item_buttons").empty()
             .append(upload_button)
             .append(cancel_button);
     };
 
 
     NotebookList.prototype.new_notebook = function(){
         var path = this.notebookPath();
         var base_project_url = this.baseProjectUrl();
         var settings = {
             processData : false,
             cache : false,
             type : "POST",
             dataType : "json",
             async : false,
             success : function (data, status, xhr) {
                 var notebook_name = data.name;
                 window.open(
                     utils.url_join_encode(
                         base_project_url,
                         'notebooks',
                         path,
                         notebook_name),
                     '_blank'
                 );
             }
         };
         var url = utils.url_join_encode(
             base_project_url,
             'api/notebooks',
             path
         );
         $.ajax(url, settings);
     };
 
     IPython.NotebookList = NotebookList;
 
     return IPython;
 
 }(IPython));