@flexis/ui/components/common/toggleScrollBlock.js

Styleless React Components

"use strict";

var _Object$defineProperty = require("@babel/runtime-corejs3/core-js-stable/object/define-property");

_Object$defineProperty(exports, "__esModule", {
  value: true
});

exports.default = toggleScrollBlock;

var _helpers = require("../../helpers");

/**
 * Toggle scroll blocking.
 * @param  active - Current state.
 * @param  unblockScroll - Unblock scroll function.
 * @param  element - Element to block scroll.
 * @return New unblock scroll function or null.
 */
function toggleScrollBlock(active, unblockScroll) {
  var element = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : document.body;
  var scrollBlocked = typeof unblockScroll === 'function';

  if (active) {
    if (scrollBlocked) {
      unblockScroll();
    }

    return (0, _helpers.blockScroll)(element);
  }

  if (scrollBlocked) {
    unblockScroll();
  }

  return null;
}
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