bool _addClient(KeepAliveNotification notification)
{
Listenable handle = notification.handle;
this._handles = this._handles ?? new Dictionary <Listenable, VoidCallback>();
D.assert(!this._handles.ContainsKey(handle));
this._handles[handle] = this._createCallback(handle);
handle.addListener(this._handles[handle]);
if (!this._keepingAlive)
{
this._keepingAlive = true;
ParentDataElement childElement = this._getChildElement();
if (childElement != null)
{
this._updateParentDataOfChild(childElement);
}
else
{
SchedulerBinding.instance.addPostFrameCallback(timeStamp => {
ParentDataElement childElement1 = this._getChildElement();
D.assert(childElement1 != null);
this._updateParentDataOfChild(childElement1);
});
}
}
return(false);
}
void _updateParentDataOfChild(ParentDataElement childElement)
{
childElement.applyWidgetOutOfTurn((ParentDataWidget)this.build(this.context));
}
