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