@elastic/eui
Version:
Elastic UI Component Library
30 lines (28 loc) • 1.67 kB
JavaScript
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
import React from 'react';
import { EuiColorModeContext, EuiHighContrastModeContext } from '../../../services';
import { useWindowMediaMatcher } from './match_media_hook';
import { jsx as ___EmotionJSX } from "@emotion/react";
export var EuiSystemDefaultsProvider = function EuiSystemDefaultsProvider(_ref) {
var children = _ref.children;
// @see https://developer.mozilla.org/en-US/docs/Web/CSS/@media/prefers-color-scheme
var systemColorMode = useWindowMediaMatcher('(prefers-color-scheme: dark)') ? 'DARK' : 'LIGHT';
// There are different types of high contrast modes based on system/OS settings. @see:
// - https://developer.mozilla.org/en-US/docs/Web/CSS/@media/prefers-contrast
// - https://developer.mozilla.org/en-US/docs/Web/CSS/@media/forced-colors
// - https://kilianvalkhof.com/2023/css-html/i-no-longer-understand-prefers-contrast/
var windowsHighContrast = useWindowMediaMatcher('(forced-colors: active)');
var macHighContrast = useWindowMediaMatcher('(prefers-contrast: more)');
var systemHighContrastMode = windowsHighContrast ? 'forced' : macHighContrast ? 'preferred' : false;
return ___EmotionJSX(EuiColorModeContext.Provider, {
value: systemColorMode
}, ___EmotionJSX(EuiHighContrastModeContext.Provider, {
value: systemHighContrastMode
}, children));
};