/* -*- 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_widget_gtk_ScreenHelperGTK_h

#define mozilla_widget_gtk_ScreenHelperGTK_h

#include "mozilla/widget/ScreenManager.h"

#include "gdk/gdk.h"

#ifdef MOZ_X11

#include <X11/Xlib.h>

#include "X11UndefineNone.h"

#endif

namespace mozilla {

namespace widget {

class ScreenHelperGTK final : public ScreenManager::Helper

{

public:

  ScreenHelperGTK();

  ~ScreenHelperGTK() override;

  static gint GetGTKMonitorScaleFactor(gint aMonitorNum = 0);

#ifdef MOZ_X11

  Atom NetWorkareaAtom() { return mNetWorkareaAtom; }

#endif

  // For internal use from signal callback functions

  void RefreshScreens();

private:

  GdkWindow* mRootWindow;

#ifdef MOZ_X11

  Atom mNetWorkareaAtom;

#endif

};

} // namespace widget

} // namespace mozilla

#endif // mozilla_widget_gtk_ScreenHelperGTK_h