gecko-dev/dom/base/WindowOrientationObserver.h

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1.0 KiB
C
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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 nsGlobalWindow;
namespace mozilla {
namespace dom {
class WindowOrientationObserver final :
public mozilla::hal::ScreenConfigurationObserver
{
public:
explicit WindowOrientationObserver(nsGlobalWindow* aGlobalWindow);
~WindowOrientationObserver();
void Notify(const mozilla::hal::ScreenConfiguration& aConfiguration) override;
static int16_t OrientationAngle();
private:
// Weak pointer, instance is owned by mWindow.
nsGlobalWindow* MOZ_NON_OWNING_REF mWindow;
uint16_t mAngle;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_WindowOrientationObserver_h