1 files changed, 45 insertions, 0 deletions
diff --git a/dom/fetch/FetchObserver.h b/dom/fetch/FetchObserver.h
new file mode 100644
index 0000000000..a80342a2fd
--- /dev/null
+++ b/dom/fetch/FetchObserver.h
@@ -0,0 +1,45 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_FetchObserver_h
+#define mozilla_dom_FetchObserver_h
+
+#include "mozilla/DOMEventTargetHelper.h"
+#include "mozilla/dom/FetchObserverBinding.h"
+#include "mozilla/dom/AbortSignal.h"
+
+namespace mozilla::dom {
+
+class FetchObserver final : public DOMEventTargetHelper, public AbortFollower {
+ public:
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(FetchObserver, DOMEventTargetHelper)
+
+  FetchObserver(nsIGlobalObject* aGlobal, AbortSignalImpl* aSignalImpl);
+
+  JSObject* WrapObject(JSContext* aCx,
+                       JS::Handle<JSObject*> aGivenProto) override;
+
+  FetchState State() const;
+
+  IMPL_EVENT_HANDLER(statechange);
+  IMPL_EVENT_HANDLER(requestprogress);
+  IMPL_EVENT_HANDLER(responseprogress);
+
+  // AbortFollower
+  void RunAbortAlgorithm() override;
+
+  void SetState(FetchState aState);
+
+ private:
+  ~FetchObserver() = default;
+
+  FetchState mState;
+};
+
+}  // namespace mozilla::dom
+
+#endif  // mozilla_dom_FetchObserver_h