/* -*- 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/. */

/* thread-safe container of information for resolving url values */

#ifndef mozilla_URLExtraData_h

#define mozilla_URLExtraData_h

#include "mozilla/dom/URL.h"

#include "mozilla/Move.h"

#include "mozilla/StaticPtr.h"

#include "mozilla/net/ReferrerPolicy.h"

#include "nsCOMPtr.h"

#include "nsIPrincipal.h"

#include "nsIURI.h"

namespace mozilla {

struct URLExtraData

{

  URLExtraData(already_AddRefed<nsIURI> aBaseURI,

               already_AddRefed<nsIURI> aReferrer,

               already_AddRefed<nsIPrincipal> aPrincipal,

               net::ReferrerPolicy aReferrerPolicy)

    : mBaseURI(std::move(aBaseURI))

    , mReferrer(std::move(aReferrer))

    , mReferrerPolicy(aReferrerPolicy)

    , mPrincipal(std::move(aPrincipal))

      // When we hold the URI data of a style sheet, mReferrer is always

      // equal to the sheet URI.

    , mIsChrome(mReferrer ? dom::IsChromeURI(mReferrer) : false)

  {

    MOZ_ASSERT(mBaseURI);

  }

  URLExtraData(nsIURI* aBaseURI, nsIURI* aReferrer, nsIPrincipal* aPrincipal,

               net::ReferrerPolicy aReferrerPolicy)

    : URLExtraData(do_AddRef(aBaseURI),

                   do_AddRef(aReferrer),

                   do_AddRef(aPrincipal),

                   aReferrerPolicy) {}

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(URLExtraData)

  nsIURI* BaseURI() const { return mBaseURI; }

  nsIURI* GetReferrer() const { return mReferrer; }

  net::ReferrerPolicy GetReferrerPolicy() const { return mReferrerPolicy;}

  nsIPrincipal* GetPrincipal() const { return mPrincipal; }

  static URLExtraData* Dummy() {

    MOZ_ASSERT(sDummy);

    return sDummy;

  }

  static void InitDummy();

  static void ReleaseDummy();

private:

  ~URLExtraData();

  nsCOMPtr<nsIURI> mBaseURI;

  nsCOMPtr<nsIURI> mReferrer;

  net::ReferrerPolicy mReferrerPolicy;

  nsCOMPtr<nsIPrincipal> mPrincipal;

  // True if mReferrer is a chrome:// URI.

  const bool mIsChrome;

  static StaticRefPtr<URLExtraData> sDummy;

};

} // namespace mozilla

#endif // mozilla_URLExtraData_h