Lock.h - mozsearch

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim:set ts=2 sw=2 sts=2 et cindent: */

/* 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_Lock_h

#define mozilla_dom_Lock_h

#include "js/TypeDecls.h"

#include "mozilla/Attributes.h"

#include "mozilla/ErrorResult.h"

#include "mozilla/WeakPtr.h"

#include "mozilla/dom/BindingDeclarations.h"

#include "mozilla/dom/LockManagerBinding.h"

#include "mozilla/dom/PromiseNativeHandler.h"

#include "nsCycleCollectionParticipant.h"

#include "nsWrapperCache.h"

namespace mozilla::dom {

class LockManager;

namespace locks {

class LockRequestChild;

class Lock final : public PromiseNativeHandler, public nsWrapperCache {

  friend class LockManager;

 public:

  NS_DECL_CYCLE_COLLECTING_ISUPPORTS

  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(Lock)

  Lock(nsIGlobalObject* aGlobal,

       const WeakPtr<locks::LockRequestChild>& aLockRequestChild,

       const nsString& aName, LockMode aMode,

       const RefPtr<Promise>& aReleasedPromise, ErrorResult& aRv);

 protected:

  ~Lock() = default;

 public:

  nsIGlobalObject* GetParentObject() const { return mOwner; };

  JSObject* WrapObject(JSContext* aCx,

                       JS::Handle<JSObject*> aGivenProto) override;

  void GetName(nsString& aRetVal) const;

  LockMode Mode() const;

  Promise& GetWaitingPromise();

  // PromiseNativeHandler

  virtual void ResolvedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue,

                                ErrorResult& aRv) override;

  virtual void RejectedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue,

                                ErrorResult& aRv) override;

 private:

  nsCOMPtr<nsIGlobalObject> mOwner;

  WeakPtr<locks::LockRequestChild> mLockRequestChild;

  nsString mName;

  LockMode mMode;

  RefPtr<Promise> mWaitingPromise;

  RefPtr<Promise> mReleasedPromise;

};

}  // namespace mozilla::dom

#endif  // mozilla_dom_Lock_h