Bootstrap/docs/4.0/assets/js/vendor/popper.min.js

/*
 Copyright (C) Federico Zivolo 2017
 Distributed under the MIT License (license terms are at http://opensource.org/licenses/MIT).
 */(function(e,t){'object'==typeof exports&&'undefined'!=typeof module?module.exports=t():'function'==typeof define&&define.amd?define(t):e.Popper=t()})(this,function(){'use strict';function e(e){return e&&'[object Function]'==={}.toString.call(e)}function t(e,t){if(1!==e.nodeType)return[];var o=getComputedStyle(e,null);return t?o[t]:o}function o(e){return'HTML'===e.nodeName?e:e.parentNode||e.host}function n(e){if(!e)return document.body;switch(e.nodeName){case'HTML':case'BODY':return e.ownerDocument.body;case'#document':return e.body;}var i=t(e),r=i.overflow,p=i.overflowX,s=i.overflowY;return /(auto|scroll)/.test(r+s+p)?e:n(o(e))}function r(e){var o=e&&e.offsetParent,i=o&&o.nodeName;return i&&'BODY'!==i&&'HTML'!==i?-1!==['TD','TABLE'].indexOf(o.nodeName)&&'static'===t(o,'position')?r(o):o:e?e.ownerDocument.documentElement:document.documentElement}function p(e){var t=e.nodeName;return'BODY'!==t&&('HTML'===t||r(e.firstElementChild)===e)}function s(e){return null===e.parentNode?e:s(e.parentNode)}function d(e,t){if(!e||!e.nodeType||!t||!t.nodeType)return document.documentElement;var o=e.compareDocumentPosition(t)&Node.DOCUMENT_POSITION_FOLLOWING,i=o?e:t,n=o?t:e,a=document.createRange();a.setStart(i,0),a.setEnd(n,0);var l=a.commonAncestorContainer;if(e!==l&&t!==l||i.contains(n))return p(l)?l:r(l);var f=s(e);return f.host?d(f.host,t):d(e,s(t).host)}function a(e){var t=1<arguments.length&&void 0!==arguments[1]?arguments[1]:'top',o='top'===t?'scrollTop':'scrollLeft',i=e.nodeName;if('BODY'===i||'HTML'===i){var n=e.ownerDocument.documentElement,r=e.ownerDocument.scrollingElement||n;return r[o]}return e[o]}function l(e,t){var o=2<arguments.length&&void 0!==arguments[2]&&arguments[2],i=a(t,'top'),n=a(t,'left'),r=o?-1:1;return e.top+=i*r,e.bottom+=i*r,e.left+=n*r,e.right+=n*r,e}function f(e,t){var o='x'===t?'Left':'Top',i='Left'==o?'Right':'Bottom';return parseFloat(e['border'+o+'Width'],10)+parseFloat(e['border'+i+'Width'],10)}function m(e,t,o,i){return J(t['offset'+e],t['scroll'+e],o['client'+e],o['offset'+e],o['scroll'+e],ie()?o['offset'+e]+i['margin'+('Height'===e?'Top':'Left')]+i['margin'+('Height'===e?'Bottom':'Right')]:0)}function h(){var e=document.body,t=document.documentElement,o=ie()&&getComputedStyle(t);return{height:m('Height',e,t,o),width:m('Width',e,t,o)}}function c(e){return se({},e,{right:e.left+e.width,bottom:e.top+e.height})}function g(e){var o={};if(ie())try{o=e.getBoundingClientRect();var i=a(e,'top'),n=a(e,'left');o.top+=i,o.left+=n,o.bottom+=i,o.right+=n}catch(e){}else o=e.getBoundingClientRect();var r={left:o.left,top:o.top,width:o.right-o.left,height:o.bottom-o.top},p='HTML'===e.nodeName?h():{},s=p.width||e.clientWidth||r.right-r.left,d=p.height||e.clientHeight||r.bottom-r.top,l=e.offsetWidth-s,m=e.offsetHeight-d;if(l||m){var g=t(e);l-=f(g,'x'),m-=f(g,'y'),r.width-=l,r.height-=m}return c(r)}function u(e,o){var i=ie(),r='HTML'===o.nodeName,p=g(e),s=g(o),d=n(e),a=t(o),f=parseFloat(a.borderTopWidth,10),m=parseFloat(a.borderLeftWidth,10),h=c({top:p.top-s.top-f,left:p.left-s.left-m,width:p.width,height:p.height});if(h.marginTop=0,h.marginLeft=0,!i&&r){var u=parseFloat(a.marginTop,10),b=parseFloat(a.marginLeft,10);h.top-=f-u,h.bottom-=f-u,h.left-=m-b,h.right-=m-b,h.marginTop=u,h.marginLeft=b}return(i?o.contains(d):o===d&&'BODY'!==d.nodeName)&&(h=l(h,o)),h}function b(e){var t=e.ownerDocument.documentElement,o=u(e,t),i=J(t.clientWidth,window.innerWidth||0),n=J(t.clientHeight,window.innerHeight||0),r=a(t),p=a(t,'left'),s={top:r-o.top+o.marginTop,left:p-o.left+o.marginLeft,width:i,height:n};return c(s)}function w(e){var i=e.nodeName;return'BODY'===i||'HTML'===i?!1:'fixed'===t(e,'position')||w(o(e))}function y(e,t,i,r){var p={top:0,left:0},s=d(e,t);if('viewport'===r)p=b(s);else{var a;'scrollParent'===r?(a=n(o(t)),'BODY'===a.nodeName&&(a=e.ownerDocument.documentElement)):'window'===r?a=e.ownerDocument.documentElement:a=r;var l=u(a,s);if('HTML'===a.nodeName&&!w(s)){var f=h(),m=f.height,c=f.width;p.top+=l.top-l.marginTop,p.bottom=m+l.top,p.left+=l.left-l.marginLeft,p.right=c+l.left}else p=l}return p.left+=i,p.top+=i,p.ri
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