/* -*- 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() {}

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__