/**
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow
*/
import {canUseDOM} from 'shared/ExecutionEnvironment';
export let passiveBrowserEventsSupported: boolean = false;
// Check if browser support events with passive listeners
// https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support
if (canUseDOM) {
try {
const options: {
passive?: void,
} = {};
Object.defineProperty(options, 'passive', {
get: function () {
passiveBrowserEventsSupported = true;
},
});
window.addEventListener('test', options, options);
window.removeEventListener('test', options, options);
} catch (e) {
passiveBrowserEventsSupported = false;
}
}