##// END OF EJS Templates
Fix race condition in javascript kernel message processing...
Fix race condition in javascript kernel message processing Because the binary messages are now deserialized using the asynchronous FileReader API, we need to have some way to force the messages to still be processed in the order they are received. This patch implements a simple processing queue using promises.

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r20441:834cd9c4
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widget_selectioncontainer.py
68 lines | 2.2 KiB | text/x-python | PythonLexer
/ IPython / html / widgets / widget_selectioncontainer.py
"""SelectionContainer class.
Represents a multipage container that can be used to group other widgets into
pages.
"""
#-----------------------------------------------------------------------------
# Copyright (c) 2013, the IPython Development Team.
#
# Distributed under the terms of the Modified BSD License.
#
# The full license is in the file COPYING.txt, distributed with this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
from .widget_box import Box, register
from IPython.utils.traitlets import Unicode, Dict, CInt
from IPython.utils.warn import DeprecatedClass
#-----------------------------------------------------------------------------
# Classes
#-----------------------------------------------------------------------------
class _SelectionContainer(Box):
"""Base class used to display multiple child widgets."""
_titles = Dict(help="Titles of the pages", sync=True)
selected_index = CInt(0, sync=True)
# Public methods
def set_title(self, index, title):
"""Sets the title of a container page.
Parameters
----------
index : int
Index of the container page
title : unicode
New title"""
self._titles[index] = title
self.send_state('_titles')
def get_title(self, index):
"""Gets the title of a container pages.
Parameters
----------
index : int
Index of the container page"""
if index in self._titles:
return self._titles[index]
else:
return None
@register('IPython.Accordion')
class Accordion(_SelectionContainer):
"""Displays children each on a separate accordion page."""
_view_name = Unicode('AccordionView', sync=True)
@register('IPython.Tab')
class Tab(_SelectionContainer):
"""Displays children each on a separate accordion tab."""
_view_name = Unicode('TabView', sync=True)
# Remove in IPython 4.0
AccordionWidget = DeprecatedClass(Accordion, 'AccordionWidget')
TabWidget = DeprecatedClass(Tab, 'TabWidget')