WindowsUIUtils.h - mozsearch

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* 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_WindowsUIUtils_h__

#define mozilla_widget_WindowsUIUtils_h__

#include "nsIWindowsUIUtils.h"

#include "nsString.h"

#include "nsColor.h"

#include "mozilla/Maybe.h"

#include "mozilla/MozPromise.h"

using SharePromise =

    mozilla::MozPromise<bool, nsresult, /* IsExclusive */ true>;

namespace mozilla {

enum class ColorScheme : uint8_t;

class WindowsUIUtils final : public nsIWindowsUIUtils {

 public:

  NS_DECL_ISUPPORTS

  NS_DECL_NSIWINDOWSUIUTILS

  WindowsUIUtils();

  static RefPtr<SharePromise> Share(nsAutoString aTitle, nsAutoString aText,

                                    nsAutoString aUrl);

  static void UpdateInTabletMode();

  static bool GetInTabletMode();

  // Gets the system accent color, or one of the darker / lighter variants

  // (darker = -1/2/3, lighter=+1/2/3, values outside of that range are

  // disallowed).

  static mozilla::Maybe<nscolor> GetAccentColor(int aTone = 0);

  static mozilla::Maybe<nscolor> GetSystemColor(mozilla::ColorScheme, int);

  // Use LookAndFeel for a cached getter.

  static bool ComputeOverlayScrollbars();

  static double ComputeTextScaleFactor();

  static bool ComputeTransparencyEffects();

 protected:

  ~WindowsUIUtils();

};

#endif  // mozilla_widget_WindowsUIUtils_h__