gecko-dev/widget/android/GeckoScreenOrientation.h

/* -*- Mode: c++; c-basic-offset: 2; tab-width: 20; indent-tabs-mode: nil; -*-
 * 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 GeckoScreenOrientation_h
#define GeckoScreenOrientation_h

#include "nsAppShell.h"
#include "nsCOMPtr.h"
#include "nsIScreenManager.h"

#include "mozilla/Hal.h"
#include "mozilla/java/GeckoScreenOrientationNatives.h"

namespace mozilla {

class GeckoScreenOrientation final
    : public java::GeckoScreenOrientation::Natives<GeckoScreenOrientation> {
  GeckoScreenOrientation() = delete;

 public:
  static void OnOrientationChange(int16_t aOrientation, int16_t aAngle) {
    nsCOMPtr<nsIScreenManager> screenMgr =
        do_GetService("@mozilla.org/gfx/screenmanager;1");
    nsCOMPtr<nsIScreen> screen;

    if (!screenMgr ||
        NS_FAILED(screenMgr->GetPrimaryScreen(getter_AddRefs(screen))) ||
        !screen) {
      return;
    }

    nsIntRect rect;
    int32_t colorDepth, pixelDepth;

    if (NS_FAILED(
            screen->GetRect(&rect.x, &rect.y, &rect.width, &rect.height)) ||
        NS_FAILED(screen->GetColorDepth(&colorDepth)) ||
        NS_FAILED(screen->GetPixelDepth(&pixelDepth))) {
      return;
    }

    hal::NotifyScreenConfigurationChange(hal::ScreenConfiguration(
        rect, static_cast<hal::ScreenOrientation>(aOrientation), aAngle,
        colorDepth, pixelDepth));
  }
};

}  // namespace mozilla

#endif  // GeckoScreenOrientation_h