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tether.min.js
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!function(t,e){"function"==typeof define&&define.amd?define([],e):"object"==typeof exports?module.exports=e():t.Tether=e()}(this,function(){"use strict";function t(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function e(t){var o=t.getBoundingClientRect(),i={};for(var n in o)i[n]=o[n];try{if(t.ownerDocument!==document){var r=t.ownerDocument.defaultView.frameElement;if(r){var s=e(r);i.top+=s.top,i.bottom+=s.top,i.left+=s.left,i.right+=s.left}}}catch(a){}return i}function o(t){var e=getComputedStyle(t)||{},o=e.position,i=[];if("fixed"===o)return[t];for(var n=t;(n=n.parentNode)&&n&&1===n.nodeType;){var r=void 0;try{r=getComputedStyle(n)}catch(s){}if("undefined"==typeof r||null===r)return i.push(n),i;var a=r,f=a.overflow,l=a.overflowX,h=a.overflowY;/(auto|scroll|overlay)/.test(f+h+l)&&("absolute"!==o||["relative","absolute","fixed"].indexOf(r.position)>=0)&&i.push(n)}return 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r=this.options,s=r.element,f=r.target,h=r.targetModifier;if(this.element=s,this.target=f,this.targetModifier=h,"viewport"===this.target?(this.target=document.body,this.targetModifier="visible"):"scroll-handle"===this.target&&(this.target=document.body,this.targetModifier="scroll-handle"),["element","target"].forEach(function(t){if("undefined"==typeof e[t])throw new Error("Tether Error: Both element and target must be defined");"undefined"!=typeof e[t].jquery?e[t]=e[t][0]:"string"==typeof e[t]&&(e[t]=document.querySelector(e[t]))}),l(this.element,this.getClass("element")),this.options.addTargetClasses!==!1&&l(this.target,this.getClass("target")),!this.options.attachment)throw new Error("Tether Error: You must provide an attachment");this.targetAttachment=R(this.options.targetAttachment),this.attachment=R(this.options.attachment),this.offset=N(this.options.offset),this.targetOffset=N(this.options.targetOffset),"undefined"!=typeof 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e.height=Math.min(e.height,t.height-(pageYOffset-t.top)),e.height=Math.min(e.height,t.height-(t.top+t.height-(pageYOffset+innerHeight))),e.height=Math.min(innerHeight,e.height),e.height-=2,e.width=Math.min(e.width,t.width-(pageXOffset-t.left)),e.width=Math.min(e.width,t.width-(t.left+t.width-(pageXOffset+innerWidth))),e.width=Math.min(innerWidth,e.width),e.width-=2,e.top<pageYOffset&&(e.top=pageYOffset),e.left<pageXOffset&&(e.left=pageXOffset),e}if("scroll-handle"===this.targetModifier){var t=void 0,o=this.target;o===document.body?(o=document.documentElement,t={left:pageXOffset,top:pageYOffset,height:innerHeight,width:innerWidth}):t=n(o);var i=getComputedStyle(o),r=o.scrollWidth>o.clientWidth||[i.overflow,i.overflowX].indexOf("scroll")>=0||this.target!==document.body,s=0;r&&(s=15);var a=t.height-parseFloat(i.borderTopWidth)-parseFloat(i.borderBottomWidth)-s,e={width:15,height:.975*a*(a/o.scrollHeight),left:t.left+t.width-parseFloat(i.borderLeftWidth)-15},f=0;a<408&&this.target===document.body&&(f=-11e-5*Math.pow(a,2)-.00727*a+22.58),this.target!==document.body&&(e.height=Math.max(e.height,24));var l=this.target.scrollTop/(o.scrollHeight-a);return e.top=l*(a-e.height-f)+t.top+parseFloat(i.borderTopWidth),this.target===document.body&&(e.height=Math.max(e.height,24)),e}}},{key:"clearCache",value:function(){this._cache={}}},{key:"cache",value:function(t,e){return"undefined"==typeof this._cache&&(this._cache={}),"undefined"==typeof this._cache[t]&&(this._cache[t]=e.call(this)),this._cache[t]}},{key:"enable",value:function(){var t=this,e=arguments.length<=0||void 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