def __init__(self, widget, **kwargs):
from ipywidgets import embed, Widget
super().__init__(**kwargs)
spec = widget.get_view_spec()
state = Widget.get_manager_state(widgets=[])
state["state"] = embed.dependency_state([widget], drop_defaults=True)
self.bundle = dict(spec=spec, state=state)
def test_state_schema():
from ipywidgets.widgets import IntSlider, Widget
import json
import jsonschema
s = IntSlider()
state = Widget.get_manager_state(drop_defaults=True)
with open(
os.path.join(os.path.dirname(os.path.realpath(__file__)), '../../',
'state.schema.json')) as f:
schema = json.load(f)
jsonschema.validate(state, schema)
def ipywidget_state(widgets):
from jinja2 import Markup
from ipywidgets import embed as wembed
drop_defaults = True
state = wembed.dependency_state(widgets, drop_defaults=drop_defaults)
from ipywidgets import Widget
json_data = Widget.get_manager_state(widgets=[])
json_data['state'] = state
json_data_str = json.dumps(json_data, indent=' ')
snippet = wembed.snippet_template.format(load='',
widget_views='',
json_data=json_data_str)
return Markup(snippet)
def add_widget_state(app, pagename, templatename, context, doctree):
if 'body' in context and Widget.widgets:
state_spec = json.dumps(Widget.get_manager_state(drop_defaults=True))
Widget.widgets = {}
context[
'body'] += '<script type="application/vnd.jupyter.widget-state+json">' + state_spec + '</script>'