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Merge pull request #6582 from jdfreder/symmetric_state

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Symmetric widget get/set_state
This commit is contained in:
Matthias Bussonnier 2014-10-03 09:10:56 +02:00
commit 0d9db64180
3 changed files with 14 additions and 14 deletions
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4
IPython/html/static/widgets/js/widget.js
View File

@ -69,7 +69,7 @@ define(["widgets/js/manager",
var method = msg.content.data.method;
switch (method) {
case 'update':
this.apply_update(msg.content.data.state);
this.set_state(msg.content.data.state);
break;
case 'custom':
this.trigger('msg:custom', msg.content.data.content);
@ -80,7 +80,7 @@ define(["widgets/js/manager",
}
},
apply_update: function (state) {
set_state: function (state) {
// Handle when a widget is updated via the python side.
this.state_lock = state;
try {

4
IPython/html/tests/widgets/widget.js
View File

@ -118,8 +118,8 @@ casper.notebook_test(function () {
' b = CInt(0, sync=True)\n' +
' c = CInt(0, sync=True)\n' +
' d = CInt(-1, sync=True)\n' + // See if it sends a full state.
' def _handle_receive_state(self, sync_data):\n' +
' widgets.Widget._handle_receive_state(self, sync_data)\n'+
' def set_state(self, sync_data):\n' +
' widgets.Widget.set_state(self, sync_data)\n'+
' self.d = len(sync_data)\n' +
'multiset = MultiSetWidget()\n' +
'display(multiset)\n' +

20
IPython/html/widgets/widget.py
View File

@ -208,6 +208,15 @@ class Widget(LoggingConfigurable):
value = getattr(self, k)
state[k] = f(value)
return state
def set_state(self, sync_data):
"""Called when a state is received from the front-end."""
for name in self.keys:
if name in sync_data:
json_value = sync_data[name]
from_json = self.trait_metadata(name, 'from_json', self._trait_from_json)
with self._lock_property(name, json_value):
setattr(self, name, from_json(json_value))
def send(self, content):
"""Sends a custom msg to the widget model in the front-end.
@ -304,22 +313,13 @@ class Widget(LoggingConfigurable):
# Handle backbone sync methods CREATE, PATCH, and UPDATE all in one.
if method == 'backbone' and 'sync_data' in data:
sync_data = data['sync_data']
self._handle_receive_state(sync_data) # handles all methods
self.set_state(sync_data) # handles all methods
# Handle a custom msg from the front-end
elif method == 'custom':
if 'content' in data:
self._handle_custom_msg(data['content'])
def _handle_receive_state(self, sync_data):
"""Called when a state is received from the front-end."""
for name in self.keys:
if name in sync_data:
json_value = sync_data[name]
from_json = self.trait_metadata(name, 'from_json', self._trait_from_json)
with self._lock_property(name, json_value):
setattr(self, name, from_json(json_value))
def _handle_custom_msg(self, content):
"""Called when a custom msg is received."""
self._msg_callbacks(self, content)