Merge pull request #7 from kecnry/plugin-component-send-state

allow plugin components to call `send_state`

jdaviz/core/template_mixin.py

@@ -700,6 +700,10 @@ def add_observe(self, traitlet_name, handler, first=False):
             new_order = [handler] + [other for other in existing_callbacks if other != handler]
             self._plugin._trait_notifiers[traitlet_name]['change'] = new_order
 
+    def send_state(self, traitlet_name):
+        # redirect send_state through the plugin
+        self._plugin.send_state(self._plugin_traitlets.get(traitlet_name))
+
     @property
     def plugin(self):
         """