1 files changed, 103 insertions, 0 deletions
diff --git a/dom/base/DOMRequest.h b/dom/base/DOMRequest.h
new file mode 100644
index 0000000000..b0e7c23112
--- /dev/null
+++ b/dom/base/DOMRequest.h
@@ -0,0 +1,103 @@
+/* -*- 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_domrequest_h__
+#define mozilla_dom_domrequest_h__
+
+#include "nsIDOMRequestService.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/DOMEventTargetHelper.h"
+#include "mozilla/dom/DOMException.h"
+#include "mozilla/dom/DOMRequestBinding.h"
+
+#include "nsCOMPtr.h"
+
+namespace mozilla {
+
+class ErrorResult;
+
+namespace dom {
+
+class AnyCallback;
+class Promise;
+
+class DOMRequest : public DOMEventTargetHelper {
+ protected:
+  JS::Heap<JS::Value> mResult;
+  RefPtr<DOMException> mError;
+  RefPtr<Promise> mPromise;
+  bool mDone;
+
+ public:
+  NS_DECL_ISUPPORTS_INHERITED
+
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(DOMRequest,
+                                                         DOMEventTargetHelper)
+
+  // WrapperCache
+  nsPIDOMWindowInner* GetParentObject() const { return GetOwner(); }
+
+  virtual JSObject* WrapObject(JSContext* aCx,
+                               JS::Handle<JSObject*> aGivenProto) override;
+
+  // WebIDL Interface
+  DOMRequestReadyState ReadyState() const {
+    return mDone ? DOMRequestReadyState::Done : DOMRequestReadyState::Pending;
+  }
+
+  void GetResult(JSContext*, JS::MutableHandle<JS::Value> aRetval) const {
+    NS_ASSERTION(mDone || mResult.isUndefined(),
+                 "Result should be undefined when pending");
+    aRetval.set(mResult);
+  }
+
+  DOMException* GetError() const {
+    NS_ASSERTION(mDone || !mError, "Error should be null when pending");
+    return mError;
+  }
+
+  IMPL_EVENT_HANDLER(success)
+  IMPL_EVENT_HANDLER(error)
+
+  void Then(JSContext* aCx, AnyCallback* aResolveCallback,
+            AnyCallback* aRejectCallback, JS::MutableHandle<JS::Value> aRetval,
+            mozilla::ErrorResult& aRv);
+
+  void FireSuccess(JS::Handle<JS::Value> aResult);
+  void FireError(const nsAString& aError);
+  void FireError(nsresult aError);
+  void FireDetailedError(DOMException& aError);
+
+  explicit DOMRequest(nsPIDOMWindowInner* aWindow);
+  explicit DOMRequest(nsIGlobalObject* aGlobal);
+
+ protected:
+  virtual ~DOMRequest();
+
+  void FireEvent(const nsAString& aType, bool aBubble, bool aCancelable);
+
+  void RootResultVal();
+};
+
+class DOMRequestService final : public nsIDOMRequestService {
+  ~DOMRequestService() = default;
+
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIDOMREQUESTSERVICE
+
+  // No one should call this but the factory.
+  static already_AddRefed<DOMRequestService> FactoryCreate() {
+    return MakeAndAddRef<DOMRequestService>();
+  }
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#define DOMREQUEST_SERVICE_CONTRACTID "@mozilla.org/dom/dom-request-service;1"
+
+#endif  // mozilla_dom_domrequest_h__