import { window, document } from 'ssr-window';
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const Support = (function Support() {
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return {
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touch: !!(('ontouchstart' in window) || (window.DocumentTouch && document instanceof window.DocumentTouch)),
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pointerEvents: !!window.PointerEvent && ('maxTouchPoints' in window.navigator) && window.navigator.maxTouchPoints >= 0,
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observer: (function checkObserver() {
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return ('MutationObserver' in window || 'WebkitMutationObserver' in window);
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}()),
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passiveListener: (function checkPassiveListener() {
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let supportsPassive = false;
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try {
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const opts = Object.defineProperty({}, 'passive', {
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// eslint-disable-next-line
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get() {
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supportsPassive = true;
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},
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});
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window.addEventListener('testPassiveListener', null, opts);
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} catch (e) {
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// No support
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}
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return supportsPassive;
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}()),
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gestures: (function checkGestures() {
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return 'ongesturestart' in window;
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}()),
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};
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}());
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export default Support;
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