##// END OF EJS Templates
actually send only one kernel_info request...
actually send only one kernel_info request store the Future for the initial request, allowing subsequent requests to wait on the same pending reply. Previously, any incoming requests that arrived while waiting for the first reply would send their own request.

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r18563:0b2c2392
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widget_bool.py
50 lines | 1.9 KiB | text/x-python | PythonLexer
"""Bool class.
Represents a boolean using a widget.
"""
#-----------------------------------------------------------------------------
# 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 import DOMWidget, register
from IPython.utils.traitlets import Unicode, Bool, CaselessStrEnum
from IPython.utils.warn import DeprecatedClass
#-----------------------------------------------------------------------------
# Classes
#-----------------------------------------------------------------------------
class _Bool(DOMWidget):
"""A base class for creating widgets that represent booleans."""
value = Bool(False, help="Bool value", sync=True)
description = Unicode('', help="Description of the boolean (label).", sync=True)
disabled = Bool(False, help="Enable or disable user changes.", sync=True)
@register('IPython.Checkbox')
class Checkbox(_Bool):
"""Displays a boolean `value`."""
_view_name = Unicode('CheckboxView', sync=True)
@register('IPython.ToggleButton')
class ToggleButton(_Bool):
"""Displays a boolean `value`."""
_view_name = Unicode('ToggleButtonView', sync=True)
button_style = CaselessStrEnum(
values=['primary', 'success', 'info', 'warning', 'danger', ''],
default_value='', allow_none=True, sync=True, help="""Use a
predefined styling for the button.""")
# Remove in IPython 4.0
CheckboxWidget = DeprecatedClass(Checkbox, 'CheckboxWidget')
ToggleButtonWidget = DeprecatedClass(ToggleButton, 'ToggleButtonWidget')