func registerUpdateStopper(c dom.Element, updateStop chan struct{}) {
if c.ParentNode() != nil {
mutation.New(func(rs []*mutation.Record, o *mutation.Observer) {
if len(rs) > 0 {
for _, r := range rs {
for _, n := range r.RemovedNodes() {
if c.IsEqualNode(n) {
o.Disconnect()
close(updateStop)
return
}
}
}
}
}).Observe(c.ParentNode(), mutation.ObserverInit{ChildList: true})
}
}
