!function(e,o){if("function"==typeof define&&define.amd)define(["exports"],o);else if("undefined"!=typeof exports)o(exports);else{var t={};o(t),e.bodyScrollLock=t}}(this,function(exports){"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var t=!1;if("undefined"!=typeof window){var e={get passive(){t=!0}};window.addEventListener("testPassive",null,e),window.removeEventListener("testPassive",null,e)}function l(o){return c.some(function(e){return!(!e.options.allowTouchMove||!e.options.allowTouchMove(o))})}function d(e){var o=e||window.event;return!!l(o.target)||(1<o.touches.length||(o.preventDefault&&o.preventDefault(),!1))}function n(){void 0!==v&&(document.body.style.paddingRight=v,v=void 0),void 0!==s&&(document.body.style.overflow=s,s=void 0)}var i="undefined"!=typeof window&&window.navigator&&window.navigator.platform&&(/iP(ad|hone|od)/.test(window.navigator.platform)||"MacIntel"===window.navigator.platform&&1<window.navigator.maxTouchPoints),c=[],a=!1,u=-1,s=void 0,v=void 0;exports.disableBodyScroll=function(r,e){if(r){if(!c.some(function(e){return e.targetElement===r})){var o={targetElement:r,options:e||{}};c=[].concat(function(e){if(Array.isArray(e)){for(var o=0,t=Array(e.length);o<e.length;o++)t[o]=e[o];return t}return Array.from(e)}(c),[o]),i?(r.ontouchstart=function(e){1===e.targetTouches.length&&(u=e.targetTouches[0].clientY)},r.ontouchmove=function(e){var o,t,n,i;1===e.targetTouches.length&&(t=r,i=(o=e).targetTouches[0].clientY-u,l(o.target)||(t&&0===t.scrollTop&&0<i||(n=t)&&n.scrollHeight-n.scrollTop<=n.clientHeight&&i<0?d(o):o.stopPropagation()))},a||(document.addEventListener("touchmove",d,t?{passive:!1}:void 0),a=!0)):function(e){if(void 0===v){var o=!!e&&!0===e.reserveScrollBarGap,t=window.innerWidth-document.documentElement.clientWidth;o&&0<t&&(v=document.body.style.paddingRight,document.body.style.paddingRight=t+"px")}void 0===s&&(s=document.body.style.overflow,document.body.style.overflow="hidden")}(e)}}else console.error("disableBodyScroll unsuccessful - targetElement must be provided when calling disableBodyScroll on IOS devices.")},exports.clearAllBodyScrollLocks=function(){i?(c.forEach(function(e){e.targetElement.ontouchstart=null,e.targetElement.ontouchmove=null}),a&&(document.removeEventListener("touchmove",d,t?{passive:!1}:void 0),a=!1),u=-1):n(),c=[]},exports.enableBodyScroll=function(o){o?(c=c.filter(function(e){return e.targetElement!==o}),i?(o.ontouchstart=null,o.ontouchmove=null,a&&0===c.length&&(document.removeEventListener("touchmove",d,t?{passive:!1}:void 0),a=!1)):c.length||n()):console.error("enableBodyScroll unsuccessful - targetElement must be provided when calling enableBodyScroll on IOS devices.")}});