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/var/www/uibuilder.cmshelp.dk/httpdocs/node_modules/react-native/Libraries/Pressability/HoverState.js

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/**
 * 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 strict
 * @format
 */

import Platform from '../Utilities/Platform';

let isEnabled = false;

/* $FlowFixMe[incompatible-type] Error found due to incomplete typing of
 * Platform.flow.js */
if (Platform.OS === 'web') {
  const canUseDOM = Boolean(
    typeof window !== 'undefined' &&
      window.document &&
      window.document.createElement,
  );

if (canUseDOM) {
    /**
     * Web browsers emulate mouse events (and hover states) after touch events.
     * This code infers when the currently-in-use modality supports hover
     * (including for multi-modality devices) and considers "hover" to be enabled
     * if a mouse movement occurs more than 1 second after the last touch event.
     * This threshold is long enough to account for longer delays between the
     * browser firing touch and mouse events on low-powered devices.
     */
    const HOVER_THRESHOLD_MS = 1000;
    let lastTouchTimestamp = 0;

const enableHover = () => {
      if (isEnabled || Date.now() - lastTouchTimestamp < HOVER_THRESHOLD_MS) {
        return;
      }
      isEnabled = true;
    };

const disableHover = () => {
      lastTouchTimestamp = Date.now();
      if (isEnabled) {
        isEnabled = false;
      }
    };

document.addEventListener('touchstart', disableHover, true);
    document.addEventListener('touchmove', disableHover, true);
    document.addEventListener('mousemove', enableHover, true);
  }
}

export function isHoverEnabled(): boolean {
  return isEnabled;
}

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Name	Size	Perms	Modified	Actions
HoverState.js	1.65 KB	lrw-r--r--	2025-03-28 11:04:42	Edit Download recursive recursive
Pressability.js	30.85 KB	lrw-r--r--	2025-03-28 11:04:42	Edit Download recursive recursive
PressabilityDebug.js	2.16 KB	lrw-r--r--	2025-03-28 11:04:42	Edit Download recursive recursive
PressabilityPerformanceEventEmitter.js	1.35 KB	lrw-r--r--	2025-03-28 11:04:42	Edit Download recursive recursive
PressabilityTypes.js	424 B	lrw-r--r--	2025-03-28 11:04:42	Edit Download recursive recursive
usePressability.js	1.90 KB	lrw-r--r--	2025-03-28 11:04:42	Edit Download recursive recursive

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