| // Copyright 2016 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "third_party/blink/renderer/core/dom/synchronous_mutation_observer.h" |
| |
| #include "third_party/blink/renderer/core/dom/document.h" |
| |
| namespace blink { |
| |
| void SynchronousMutationObserver::ObserverSetWillBeCleared() { |
| document_ = nullptr; |
| } |
| |
| void SynchronousMutationObserver::SetDocument(Document* document) { |
| if (document == document_) |
| return; |
| |
| if (document_) |
| document_->SynchronousMutationObserverSet().RemoveObserver(this); |
| |
| document_ = document; |
| |
| if (document_) |
| document_->SynchronousMutationObserverSet().AddObserver(this); |
| } |
| |
| void SynchronousMutationObserver::Trace(Visitor* visitor) const { |
| visitor->Trace(document_); |
| } |
| |
| } // namespace blink |
