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/* -*- 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_WindowOrientationObserver_h
#define mozilla_dom_WindowOrientationObserver_h

#include "mozilla/HalScreenConfiguration.h"

class nsGlobalWindowInner;

namespace mozilla {
namespace dom {

class WindowOrientationObserver final
    : public mozilla::hal::ScreenConfigurationObserver {
 public:
  explicit WindowOrientationObserver(nsGlobalWindowInner* aGlobalWindow);
  ~WindowOrientationObserver();
  void Notify(const mozilla::hal::ScreenConfiguration& aConfiguration) override;
  static int16_t OrientationAngle();

 private:
  // Weak pointer, instance is owned by mWindow.
  nsGlobalWindowInner* MOZ_NON_OWNING_REF mWindow;
  uint16_t mAngle;
};

}  // namespace dom
}  // namespace mozilla

#endif  // mozilla_dom_WindowOrientationObserver_h