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			2009 lines
		
	
	
		
			69 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			2009 lines
		
	
	
		
			69 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| /**
 | ||
|  * @popperjs/core v2.11.6 - MIT License
 | ||
|  */
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| 
 | ||
| (function (global, factory) {
 | ||
|   typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
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|   typeof define === 'function' && define.amd ? define(['exports'], factory) :
 | ||
|   (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.Popper = {}));
 | ||
| }(this, (function (exports) { 'use strict';
 | ||
| 
 | ||
|   function getWindow(node) {
 | ||
|     if (node == null) {
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|       return window;
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|     }
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| 
 | ||
|     if (node.toString() !== '[object Window]') {
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|       var ownerDocument = node.ownerDocument;
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|       return ownerDocument ? ownerDocument.defaultView || window : window;
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|     }
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| 
 | ||
|     return node;
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|   }
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| 
 | ||
|   function isElement(node) {
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|     var OwnElement = getWindow(node).Element;
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|     return node instanceof OwnElement || node instanceof Element;
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|   }
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| 
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|   function isHTMLElement(node) {
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|     var OwnElement = getWindow(node).HTMLElement;
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|     return node instanceof OwnElement || node instanceof HTMLElement;
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|   }
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| 
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|   function isShadowRoot(node) {
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|     // IE 11 has no ShadowRoot
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|     if (typeof ShadowRoot === 'undefined') {
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|       return false;
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|     }
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| 
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|     var OwnElement = getWindow(node).ShadowRoot;
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|     return node instanceof OwnElement || node instanceof ShadowRoot;
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|   }
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| 
 | ||
|   var max = Math.max;
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|   var min = Math.min;
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|   var round = Math.round;
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| 
 | ||
|   function getUAString() {
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|     var uaData = navigator.userAgentData;
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| 
 | ||
|     if (uaData != null && uaData.brands) {
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|       return uaData.brands.map(function (item) {
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|         return item.brand + "/" + item.version;
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|       }).join(' ');
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|     }
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| 
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|     return navigator.userAgent;
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|   }
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| 
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|   function isLayoutViewport() {
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|     return !/^((?!chrome|android).)*safari/i.test(getUAString());
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|   }
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| 
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|   function getBoundingClientRect(element, includeScale, isFixedStrategy) {
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|     if (includeScale === void 0) {
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|       includeScale = false;
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|     }
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| 
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|     if (isFixedStrategy === void 0) {
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|       isFixedStrategy = false;
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|     }
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| 
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|     var clientRect = element.getBoundingClientRect();
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|     var scaleX = 1;
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|     var scaleY = 1;
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| 
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|     if (includeScale && isHTMLElement(element)) {
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|       scaleX = element.offsetWidth > 0 ? round(clientRect.width) / element.offsetWidth || 1 : 1;
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|       scaleY = element.offsetHeight > 0 ? round(clientRect.height) / element.offsetHeight || 1 : 1;
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|     }
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| 
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|     var _ref = isElement(element) ? getWindow(element) : window,
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|         visualViewport = _ref.visualViewport;
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| 
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|     var addVisualOffsets = !isLayoutViewport() && isFixedStrategy;
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|     var x = (clientRect.left + (addVisualOffsets && visualViewport ? visualViewport.offsetLeft : 0)) / scaleX;
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|     var y = (clientRect.top + (addVisualOffsets && visualViewport ? visualViewport.offsetTop : 0)) / scaleY;
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|     var width = clientRect.width / scaleX;
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|     var height = clientRect.height / scaleY;
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|     return {
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|       width: width,
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|       height: height,
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|       top: y,
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|       right: x + width,
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|       bottom: y + height,
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|       left: x,
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|       x: x,
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|       y: y
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|     };
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|   }
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| 
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|   function getWindowScroll(node) {
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|     var win = getWindow(node);
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|     var scrollLeft = win.pageXOffset;
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|     var scrollTop = win.pageYOffset;
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|     return {
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|       scrollLeft: scrollLeft,
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|       scrollTop: scrollTop
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|     };
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|   }
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| 
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|   function getHTMLElementScroll(element) {
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|     return {
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|       scrollLeft: element.scrollLeft,
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|       scrollTop: element.scrollTop
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|     };
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|   }
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| 
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|   function getNodeScroll(node) {
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|     if (node === getWindow(node) || !isHTMLElement(node)) {
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|       return getWindowScroll(node);
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|     } else {
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|       return getHTMLElementScroll(node);
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|     }
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|   }
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| 
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|   function getNodeName(element) {
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|     return element ? (element.nodeName || '').toLowerCase() : null;
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|   }
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| 
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|   function getDocumentElement(element) {
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|     // $FlowFixMe[incompatible-return]: assume body is always available
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|     return ((isElement(element) ? element.ownerDocument : // $FlowFixMe[prop-missing]
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|     element.document) || window.document).documentElement;
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|   }
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| 
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|   function getWindowScrollBarX(element) {
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|     // If <html> has a CSS width greater than the viewport, then this will be
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|     // incorrect for RTL.
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|     // Popper 1 is broken in this case and never had a bug report so let's assume
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|     // it's not an issue. I don't think anyone ever specifies width on <html>
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|     // anyway.
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|     // Browsers where the left scrollbar doesn't cause an issue report `0` for
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|     // this (e.g. Edge 2019, IE11, Safari)
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|     return getBoundingClientRect(getDocumentElement(element)).left + getWindowScroll(element).scrollLeft;
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|   }
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| 
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|   function getComputedStyle(element) {
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|     return getWindow(element).getComputedStyle(element);
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|   }
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| 
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|   function isScrollParent(element) {
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|     // Firefox wants us to check `-x` and `-y` variations as well
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|     var _getComputedStyle = getComputedStyle(element),
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|         overflow = _getComputedStyle.overflow,
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|         overflowX = _getComputedStyle.overflowX,
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|         overflowY = _getComputedStyle.overflowY;
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| 
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|     return /auto|scroll|overlay|hidden/.test(overflow + overflowY + overflowX);
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|   }
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| 
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|   function isElementScaled(element) {
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|     var rect = element.getBoundingClientRect();
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|     var scaleX = round(rect.width) / element.offsetWidth || 1;
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|     var scaleY = round(rect.height) / element.offsetHeight || 1;
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|     return scaleX !== 1 || scaleY !== 1;
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|   } // Returns the composite rect of an element relative to its offsetParent.
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|   // Composite means it takes into account transforms as well as layout.
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| 
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| 
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|   function getCompositeRect(elementOrVirtualElement, offsetParent, isFixed) {
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|     if (isFixed === void 0) {
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|       isFixed = false;
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|     }
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| 
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|     var isOffsetParentAnElement = isHTMLElement(offsetParent);
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|     var offsetParentIsScaled = isHTMLElement(offsetParent) && isElementScaled(offsetParent);
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|     var documentElement = getDocumentElement(offsetParent);
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|     var rect = getBoundingClientRect(elementOrVirtualElement, offsetParentIsScaled, isFixed);
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|     var scroll = {
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|       scrollLeft: 0,
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|       scrollTop: 0
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|     };
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|     var offsets = {
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|       x: 0,
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|       y: 0
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|     };
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| 
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|     if (isOffsetParentAnElement || !isOffsetParentAnElement && !isFixed) {
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|       if (getNodeName(offsetParent) !== 'body' || // https://github.com/popperjs/popper-core/issues/1078
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|       isScrollParent(documentElement)) {
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|         scroll = getNodeScroll(offsetParent);
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|       }
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| 
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|       if (isHTMLElement(offsetParent)) {
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|         offsets = getBoundingClientRect(offsetParent, true);
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|         offsets.x += offsetParent.clientLeft;
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|         offsets.y += offsetParent.clientTop;
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|       } else if (documentElement) {
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|         offsets.x = getWindowScrollBarX(documentElement);
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|       }
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|     }
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| 
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|     return {
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|       x: rect.left + scroll.scrollLeft - offsets.x,
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|       y: rect.top + scroll.scrollTop - offsets.y,
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|       width: rect.width,
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|       height: rect.height
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|     };
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|   }
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| 
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|   // means it doesn't take into account transforms.
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| 
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|   function getLayoutRect(element) {
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|     var clientRect = getBoundingClientRect(element); // Use the clientRect sizes if it's not been transformed.
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|     // Fixes https://github.com/popperjs/popper-core/issues/1223
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| 
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|     var width = element.offsetWidth;
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|     var height = element.offsetHeight;
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| 
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|     if (Math.abs(clientRect.width - width) <= 1) {
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|       width = clientRect.width;
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|     }
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| 
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|     if (Math.abs(clientRect.height - height) <= 1) {
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|       height = clientRect.height;
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|     }
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| 
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|     return {
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|       x: element.offsetLeft,
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|       y: element.offsetTop,
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|       width: width,
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|       height: height
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|     };
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|   }
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| 
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|   function getParentNode(element) {
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|     if (getNodeName(element) === 'html') {
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|       return element;
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|     }
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| 
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|     return (// this is a quicker (but less type safe) way to save quite some bytes from the bundle
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|       // $FlowFixMe[incompatible-return]
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|       // $FlowFixMe[prop-missing]
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|       element.assignedSlot || // step into the shadow DOM of the parent of a slotted node
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|       element.parentNode || ( // DOM Element detected
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|       isShadowRoot(element) ? element.host : null) || // ShadowRoot detected
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|       // $FlowFixMe[incompatible-call]: HTMLElement is a Node
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|       getDocumentElement(element) // fallback
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| 
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|     );
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|   }
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| 
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|   function getScrollParent(node) {
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|     if (['html', 'body', '#document'].indexOf(getNodeName(node)) >= 0) {
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|       // $FlowFixMe[incompatible-return]: assume body is always available
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|       return node.ownerDocument.body;
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|     }
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| 
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|     if (isHTMLElement(node) && isScrollParent(node)) {
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|       return node;
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|     }
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| 
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|     return getScrollParent(getParentNode(node));
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|   }
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| 
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|   /*
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|   given a DOM element, return the list of all scroll parents, up the list of ancesors
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|   until we get to the top window object. This list is what we attach scroll listeners
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|   to, because if any of these parent elements scroll, we'll need to re-calculate the
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|   reference element's position.
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|   */
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| 
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|   function listScrollParents(element, list) {
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|     var _element$ownerDocumen;
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| 
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|     if (list === void 0) {
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|       list = [];
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|     }
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| 
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|     var scrollParent = getScrollParent(element);
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|     var isBody = scrollParent === ((_element$ownerDocumen = element.ownerDocument) == null ? void 0 : _element$ownerDocumen.body);
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|     var win = getWindow(scrollParent);
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|     var target = isBody ? [win].concat(win.visualViewport || [], isScrollParent(scrollParent) ? scrollParent : []) : scrollParent;
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|     var updatedList = list.concat(target);
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|     return isBody ? updatedList : // $FlowFixMe[incompatible-call]: isBody tells us target will be an HTMLElement here
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|     updatedList.concat(listScrollParents(getParentNode(target)));
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|   }
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| 
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|   function isTableElement(element) {
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|     return ['table', 'td', 'th'].indexOf(getNodeName(element)) >= 0;
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|   }
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| 
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|   function getTrueOffsetParent(element) {
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|     if (!isHTMLElement(element) || // https://github.com/popperjs/popper-core/issues/837
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|     getComputedStyle(element).position === 'fixed') {
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|       return null;
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|     }
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| 
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|     return element.offsetParent;
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|   } // `.offsetParent` reports `null` for fixed elements, while absolute elements
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|   // return the containing block
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| 
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| 
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|   function getContainingBlock(element) {
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|     var isFirefox = /firefox/i.test(getUAString());
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|     var isIE = /Trident/i.test(getUAString());
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| 
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|     if (isIE && isHTMLElement(element)) {
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|       // In IE 9, 10 and 11 fixed elements containing block is always established by the viewport
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|       var elementCss = getComputedStyle(element);
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| 
 | ||
|       if (elementCss.position === 'fixed') {
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|         return null;
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|       }
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|     }
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| 
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|     var currentNode = getParentNode(element);
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| 
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|     if (isShadowRoot(currentNode)) {
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|       currentNode = currentNode.host;
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|     }
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| 
 | ||
|     while (isHTMLElement(currentNode) && ['html', 'body'].indexOf(getNodeName(currentNode)) < 0) {
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|       var css = getComputedStyle(currentNode); // This is non-exhaustive but covers the most common CSS properties that
 | ||
|       // create a containing block.
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|       // https://developer.mozilla.org/en-US/docs/Web/CSS/Containing_block#identifying_the_containing_block
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| 
 | ||
|       if (css.transform !== 'none' || css.perspective !== 'none' || css.contain === 'paint' || ['transform', 'perspective'].indexOf(css.willChange) !== -1 || isFirefox && css.willChange === 'filter' || isFirefox && css.filter && css.filter !== 'none') {
 | ||
|         return currentNode;
 | ||
|       } else {
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|         currentNode = currentNode.parentNode;
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|       }
 | ||
|     }
 | ||
| 
 | ||
|     return null;
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|   } // Gets the closest ancestor positioned element. Handles some edge cases,
 | ||
|   // such as table ancestors and cross browser bugs.
 | ||
| 
 | ||
| 
 | ||
|   function getOffsetParent(element) {
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|     var window = getWindow(element);
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|     var offsetParent = getTrueOffsetParent(element);
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| 
 | ||
|     while (offsetParent && isTableElement(offsetParent) && getComputedStyle(offsetParent).position === 'static') {
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|       offsetParent = getTrueOffsetParent(offsetParent);
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|     }
 | ||
| 
 | ||
|     if (offsetParent && (getNodeName(offsetParent) === 'html' || getNodeName(offsetParent) === 'body' && getComputedStyle(offsetParent).position === 'static')) {
 | ||
|       return window;
 | ||
|     }
 | ||
| 
 | ||
|     return offsetParent || getContainingBlock(element) || window;
 | ||
|   }
 | ||
| 
 | ||
|   var top = 'top';
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|   var bottom = 'bottom';
 | ||
|   var right = 'right';
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|   var left = 'left';
 | ||
|   var auto = 'auto';
 | ||
|   var basePlacements = [top, bottom, right, left];
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|   var start = 'start';
 | ||
|   var end = 'end';
 | ||
|   var clippingParents = 'clippingParents';
 | ||
|   var viewport = 'viewport';
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|   var popper = 'popper';
 | ||
|   var reference = 'reference';
 | ||
|   var variationPlacements = /*#__PURE__*/basePlacements.reduce(function (acc, placement) {
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|     return acc.concat([placement + "-" + start, placement + "-" + end]);
 | ||
|   }, []);
 | ||
|   var placements = /*#__PURE__*/[].concat(basePlacements, [auto]).reduce(function (acc, placement) {
 | ||
|     return acc.concat([placement, placement + "-" + start, placement + "-" + end]);
 | ||
|   }, []); // modifiers that need to read the DOM
 | ||
| 
 | ||
|   var beforeRead = 'beforeRead';
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|   var read = 'read';
 | ||
|   var afterRead = 'afterRead'; // pure-logic modifiers
 | ||
| 
 | ||
|   var beforeMain = 'beforeMain';
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|   var main = 'main';
 | ||
|   var afterMain = 'afterMain'; // modifier with the purpose to write to the DOM (or write into a framework state)
 | ||
| 
 | ||
|   var beforeWrite = 'beforeWrite';
 | ||
|   var write = 'write';
 | ||
|   var afterWrite = 'afterWrite';
 | ||
|   var modifierPhases = [beforeRead, read, afterRead, beforeMain, main, afterMain, beforeWrite, write, afterWrite];
 | ||
| 
 | ||
|   function order(modifiers) {
 | ||
|     var map = new Map();
 | ||
|     var visited = new Set();
 | ||
|     var result = [];
 | ||
|     modifiers.forEach(function (modifier) {
 | ||
|       map.set(modifier.name, modifier);
 | ||
|     }); // On visiting object, check for its dependencies and visit them recursively
 | ||
| 
 | ||
|     function sort(modifier) {
 | ||
|       visited.add(modifier.name);
 | ||
|       var requires = [].concat(modifier.requires || [], modifier.requiresIfExists || []);
 | ||
|       requires.forEach(function (dep) {
 | ||
|         if (!visited.has(dep)) {
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|           var depModifier = map.get(dep);
 | ||
| 
 | ||
|           if (depModifier) {
 | ||
|             sort(depModifier);
 | ||
|           }
 | ||
|         }
 | ||
|       });
 | ||
|       result.push(modifier);
 | ||
|     }
 | ||
| 
 | ||
|     modifiers.forEach(function (modifier) {
 | ||
|       if (!visited.has(modifier.name)) {
 | ||
|         // check for visited object
 | ||
|         sort(modifier);
 | ||
|       }
 | ||
|     });
 | ||
|     return result;
 | ||
|   }
 | ||
| 
 | ||
|   function orderModifiers(modifiers) {
 | ||
|     // order based on dependencies
 | ||
|     var orderedModifiers = order(modifiers); // order based on phase
 | ||
| 
 | ||
|     return modifierPhases.reduce(function (acc, phase) {
 | ||
|       return acc.concat(orderedModifiers.filter(function (modifier) {
 | ||
|         return modifier.phase === phase;
 | ||
|       }));
 | ||
|     }, []);
 | ||
|   }
 | ||
| 
 | ||
|   function debounce(fn) {
 | ||
|     var pending;
 | ||
|     return function () {
 | ||
|       if (!pending) {
 | ||
|         pending = new Promise(function (resolve) {
 | ||
|           Promise.resolve().then(function () {
 | ||
|             pending = undefined;
 | ||
|             resolve(fn());
 | ||
|           });
 | ||
|         });
 | ||
|       }
 | ||
| 
 | ||
|       return pending;
 | ||
|     };
 | ||
|   }
 | ||
| 
 | ||
|   function format(str) {
 | ||
|     for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
 | ||
|       args[_key - 1] = arguments[_key];
 | ||
|     }
 | ||
| 
 | ||
|     return [].concat(args).reduce(function (p, c) {
 | ||
|       return p.replace(/%s/, c);
 | ||
|     }, str);
 | ||
|   }
 | ||
| 
 | ||
|   var INVALID_MODIFIER_ERROR = 'Popper: modifier "%s" provided an invalid %s property, expected %s but got %s';
 | ||
|   var MISSING_DEPENDENCY_ERROR = 'Popper: modifier "%s" requires "%s", but "%s" modifier is not available';
 | ||
|   var VALID_PROPERTIES = ['name', 'enabled', 'phase', 'fn', 'effect', 'requires', 'options'];
 | ||
|   function validateModifiers(modifiers) {
 | ||
|     modifiers.forEach(function (modifier) {
 | ||
|       [].concat(Object.keys(modifier), VALID_PROPERTIES) // IE11-compatible replacement for `new Set(iterable)`
 | ||
|       .filter(function (value, index, self) {
 | ||
|         return self.indexOf(value) === index;
 | ||
|       }).forEach(function (key) {
 | ||
|         switch (key) {
 | ||
|           case 'name':
 | ||
|             if (typeof modifier.name !== 'string') {
 | ||
|               console.error(format(INVALID_MODIFIER_ERROR, String(modifier.name), '"name"', '"string"', "\"" + String(modifier.name) + "\""));
 | ||
|             }
 | ||
| 
 | ||
|             break;
 | ||
| 
 | ||
|           case 'enabled':
 | ||
|             if (typeof modifier.enabled !== 'boolean') {
 | ||
|               console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"enabled"', '"boolean"', "\"" + String(modifier.enabled) + "\""));
 | ||
|             }
 | ||
| 
 | ||
|             break;
 | ||
| 
 | ||
|           case 'phase':
 | ||
|             if (modifierPhases.indexOf(modifier.phase) < 0) {
 | ||
|               console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"phase"', "either " + modifierPhases.join(', '), "\"" + String(modifier.phase) + "\""));
 | ||
|             }
 | ||
| 
 | ||
|             break;
 | ||
| 
 | ||
|           case 'fn':
 | ||
|             if (typeof modifier.fn !== 'function') {
 | ||
|               console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"fn"', '"function"', "\"" + String(modifier.fn) + "\""));
 | ||
|             }
 | ||
| 
 | ||
|             break;
 | ||
| 
 | ||
|           case 'effect':
 | ||
|             if (modifier.effect != null && typeof modifier.effect !== 'function') {
 | ||
|               console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"effect"', '"function"', "\"" + String(modifier.fn) + "\""));
 | ||
|             }
 | ||
| 
 | ||
|             break;
 | ||
| 
 | ||
|           case 'requires':
 | ||
|             if (modifier.requires != null && !Array.isArray(modifier.requires)) {
 | ||
|               console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"requires"', '"array"', "\"" + String(modifier.requires) + "\""));
 | ||
|             }
 | ||
| 
 | ||
|             break;
 | ||
| 
 | ||
|           case 'requiresIfExists':
 | ||
|             if (!Array.isArray(modifier.requiresIfExists)) {
 | ||
|               console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"requiresIfExists"', '"array"', "\"" + String(modifier.requiresIfExists) + "\""));
 | ||
|             }
 | ||
| 
 | ||
|             break;
 | ||
| 
 | ||
|           case 'options':
 | ||
|           case 'data':
 | ||
|             break;
 | ||
| 
 | ||
|           default:
 | ||
|             console.error("PopperJS: an invalid property has been provided to the \"" + modifier.name + "\" modifier, valid properties are " + VALID_PROPERTIES.map(function (s) {
 | ||
|               return "\"" + s + "\"";
 | ||
|             }).join(', ') + "; but \"" + key + "\" was provided.");
 | ||
|         }
 | ||
| 
 | ||
|         modifier.requires && modifier.requires.forEach(function (requirement) {
 | ||
|           if (modifiers.find(function (mod) {
 | ||
|             return mod.name === requirement;
 | ||
|           }) == null) {
 | ||
|             console.error(format(MISSING_DEPENDENCY_ERROR, String(modifier.name), requirement, requirement));
 | ||
|           }
 | ||
|         });
 | ||
|       });
 | ||
|     });
 | ||
|   }
 | ||
| 
 | ||
|   function uniqueBy(arr, fn) {
 | ||
|     var identifiers = new Set();
 | ||
|     return arr.filter(function (item) {
 | ||
|       var identifier = fn(item);
 | ||
| 
 | ||
|       if (!identifiers.has(identifier)) {
 | ||
|         identifiers.add(identifier);
 | ||
|         return true;
 | ||
|       }
 | ||
|     });
 | ||
|   }
 | ||
| 
 | ||
|   function getBasePlacement(placement) {
 | ||
|     return placement.split('-')[0];
 | ||
|   }
 | ||
| 
 | ||
|   function mergeByName(modifiers) {
 | ||
|     var merged = modifiers.reduce(function (merged, current) {
 | ||
|       var existing = merged[current.name];
 | ||
|       merged[current.name] = existing ? Object.assign({}, existing, current, {
 | ||
|         options: Object.assign({}, existing.options, current.options),
 | ||
|         data: Object.assign({}, existing.data, current.data)
 | ||
|       }) : current;
 | ||
|       return merged;
 | ||
|     }, {}); // IE11 does not support Object.values
 | ||
| 
 | ||
|     return Object.keys(merged).map(function (key) {
 | ||
|       return merged[key];
 | ||
|     });
 | ||
|   }
 | ||
| 
 | ||
|   function getViewportRect(element, strategy) {
 | ||
|     var win = getWindow(element);
 | ||
|     var html = getDocumentElement(element);
 | ||
|     var visualViewport = win.visualViewport;
 | ||
|     var width = html.clientWidth;
 | ||
|     var height = html.clientHeight;
 | ||
|     var x = 0;
 | ||
|     var y = 0;
 | ||
| 
 | ||
|     if (visualViewport) {
 | ||
|       width = visualViewport.width;
 | ||
|       height = visualViewport.height;
 | ||
|       var layoutViewport = isLayoutViewport();
 | ||
| 
 | ||
|       if (layoutViewport || !layoutViewport && strategy === 'fixed') {
 | ||
|         x = visualViewport.offsetLeft;
 | ||
|         y = visualViewport.offsetTop;
 | ||
|       }
 | ||
|     }
 | ||
| 
 | ||
|     return {
 | ||
|       width: width,
 | ||
|       height: height,
 | ||
|       x: x + getWindowScrollBarX(element),
 | ||
|       y: y
 | ||
|     };
 | ||
|   }
 | ||
| 
 | ||
|   // of the `<html>` and `<body>` rect bounds if horizontally scrollable
 | ||
| 
 | ||
|   function getDocumentRect(element) {
 | ||
|     var _element$ownerDocumen;
 | ||
| 
 | ||
|     var html = getDocumentElement(element);
 | ||
|     var winScroll = getWindowScroll(element);
 | ||
|     var body = (_element$ownerDocumen = element.ownerDocument) == null ? void 0 : _element$ownerDocumen.body;
 | ||
|     var width = max(html.scrollWidth, html.clientWidth, body ? body.scrollWidth : 0, body ? body.clientWidth : 0);
 | ||
|     var height = max(html.scrollHeight, html.clientHeight, body ? body.scrollHeight : 0, body ? body.clientHeight : 0);
 | ||
|     var x = -winScroll.scrollLeft + getWindowScrollBarX(element);
 | ||
|     var y = -winScroll.scrollTop;
 | ||
| 
 | ||
|     if (getComputedStyle(body || html).direction === 'rtl') {
 | ||
|       x += max(html.clientWidth, body ? body.clientWidth : 0) - width;
 | ||
|     }
 | ||
| 
 | ||
|     return {
 | ||
|       width: width,
 | ||
|       height: height,
 | ||
|       x: x,
 | ||
|       y: y
 | ||
|     };
 | ||
|   }
 | ||
| 
 | ||
|   function contains(parent, child) {
 | ||
|     var rootNode = child.getRootNode && child.getRootNode(); // First, attempt with faster native method
 | ||
| 
 | ||
|     if (parent.contains(child)) {
 | ||
|       return true;
 | ||
|     } // then fallback to custom implementation with Shadow DOM support
 | ||
|     else if (rootNode && isShadowRoot(rootNode)) {
 | ||
|         var next = child;
 | ||
| 
 | ||
|         do {
 | ||
|           if (next && parent.isSameNode(next)) {
 | ||
|             return true;
 | ||
|           } // $FlowFixMe[prop-missing]: need a better way to handle this...
 | ||
| 
 | ||
| 
 | ||
|           next = next.parentNode || next.host;
 | ||
|         } while (next);
 | ||
|       } // Give up, the result is false
 | ||
| 
 | ||
| 
 | ||
|     return false;
 | ||
|   }
 | ||
| 
 | ||
|   function rectToClientRect(rect) {
 | ||
|     return Object.assign({}, rect, {
 | ||
|       left: rect.x,
 | ||
|       top: rect.y,
 | ||
|       right: rect.x + rect.width,
 | ||
|       bottom: rect.y + rect.height
 | ||
|     });
 | ||
|   }
 | ||
| 
 | ||
|   function getInnerBoundingClientRect(element, strategy) {
 | ||
|     var rect = getBoundingClientRect(element, false, strategy === 'fixed');
 | ||
|     rect.top = rect.top + element.clientTop;
 | ||
|     rect.left = rect.left + element.clientLeft;
 | ||
|     rect.bottom = rect.top + element.clientHeight;
 | ||
|     rect.right = rect.left + element.clientWidth;
 | ||
|     rect.width = element.clientWidth;
 | ||
|     rect.height = element.clientHeight;
 | ||
|     rect.x = rect.left;
 | ||
|     rect.y = rect.top;
 | ||
|     return rect;
 | ||
|   }
 | ||
| 
 | ||
|   function getClientRectFromMixedType(element, clippingParent, strategy) {
 | ||
|     return clippingParent === viewport ? rectToClientRect(getViewportRect(element, strategy)) : isElement(clippingParent) ? getInnerBoundingClientRect(clippingParent, strategy) : rectToClientRect(getDocumentRect(getDocumentElement(element)));
 | ||
|   } // A "clipping parent" is an overflowable container with the characteristic of
 | ||
|   // clipping (or hiding) overflowing elements with a position different from
 | ||
|   // `initial`
 | ||
| 
 | ||
| 
 | ||
|   function getClippingParents(element) {
 | ||
|     var clippingParents = listScrollParents(getParentNode(element));
 | ||
|     var canEscapeClipping = ['absolute', 'fixed'].indexOf(getComputedStyle(element).position) >= 0;
 | ||
|     var clipperElement = canEscapeClipping && isHTMLElement(element) ? getOffsetParent(element) : element;
 | ||
| 
 | ||
|     if (!isElement(clipperElement)) {
 | ||
|       return [];
 | ||
|     } // $FlowFixMe[incompatible-return]: https://github.com/facebook/flow/issues/1414
 | ||
| 
 | ||
| 
 | ||
|     return clippingParents.filter(function (clippingParent) {
 | ||
|       return isElement(clippingParent) && contains(clippingParent, clipperElement) && getNodeName(clippingParent) !== 'body';
 | ||
|     });
 | ||
|   } // Gets the maximum area that the element is visible in due to any number of
 | ||
|   // clipping parents
 | ||
| 
 | ||
| 
 | ||
|   function getClippingRect(element, boundary, rootBoundary, strategy) {
 | ||
|     var mainClippingParents = boundary === 'clippingParents' ? getClippingParents(element) : [].concat(boundary);
 | ||
|     var clippingParents = [].concat(mainClippingParents, [rootBoundary]);
 | ||
|     var firstClippingParent = clippingParents[0];
 | ||
|     var clippingRect = clippingParents.reduce(function (accRect, clippingParent) {
 | ||
|       var rect = getClientRectFromMixedType(element, clippingParent, strategy);
 | ||
|       accRect.top = max(rect.top, accRect.top);
 | ||
|       accRect.right = min(rect.right, accRect.right);
 | ||
|       accRect.bottom = min(rect.bottom, accRect.bottom);
 | ||
|       accRect.left = max(rect.left, accRect.left);
 | ||
|       return accRect;
 | ||
|     }, getClientRectFromMixedType(element, firstClippingParent, strategy));
 | ||
|     clippingRect.width = clippingRect.right - clippingRect.left;
 | ||
|     clippingRect.height = clippingRect.bottom - clippingRect.top;
 | ||
|     clippingRect.x = clippingRect.left;
 | ||
|     clippingRect.y = clippingRect.top;
 | ||
|     return clippingRect;
 | ||
|   }
 | ||
| 
 | ||
|   function getVariation(placement) {
 | ||
|     return placement.split('-')[1];
 | ||
|   }
 | ||
| 
 | ||
|   function getMainAxisFromPlacement(placement) {
 | ||
|     return ['top', 'bottom'].indexOf(placement) >= 0 ? 'x' : 'y';
 | ||
|   }
 | ||
| 
 | ||
|   function computeOffsets(_ref) {
 | ||
|     var reference = _ref.reference,
 | ||
|         element = _ref.element,
 | ||
|         placement = _ref.placement;
 | ||
|     var basePlacement = placement ? getBasePlacement(placement) : null;
 | ||
|     var variation = placement ? getVariation(placement) : null;
 | ||
|     var commonX = reference.x + reference.width / 2 - element.width / 2;
 | ||
|     var commonY = reference.y + reference.height / 2 - element.height / 2;
 | ||
|     var offsets;
 | ||
| 
 | ||
|     switch (basePlacement) {
 | ||
|       case top:
 | ||
|         offsets = {
 | ||
|           x: commonX,
 | ||
|           y: reference.y - element.height
 | ||
|         };
 | ||
|         break;
 | ||
| 
 | ||
|       case bottom:
 | ||
|         offsets = {
 | ||
|           x: commonX,
 | ||
|           y: reference.y + reference.height
 | ||
|         };
 | ||
|         break;
 | ||
| 
 | ||
|       case right:
 | ||
|         offsets = {
 | ||
|           x: reference.x + reference.width,
 | ||
|           y: commonY
 | ||
|         };
 | ||
|         break;
 | ||
| 
 | ||
|       case left:
 | ||
|         offsets = {
 | ||
|           x: reference.x - element.width,
 | ||
|           y: commonY
 | ||
|         };
 | ||
|         break;
 | ||
| 
 | ||
|       default:
 | ||
|         offsets = {
 | ||
|           x: reference.x,
 | ||
|           y: reference.y
 | ||
|         };
 | ||
|     }
 | ||
| 
 | ||
|     var mainAxis = basePlacement ? getMainAxisFromPlacement(basePlacement) : null;
 | ||
| 
 | ||
|     if (mainAxis != null) {
 | ||
|       var len = mainAxis === 'y' ? 'height' : 'width';
 | ||
| 
 | ||
|       switch (variation) {
 | ||
|         case start:
 | ||
|           offsets[mainAxis] = offsets[mainAxis] - (reference[len] / 2 - element[len] / 2);
 | ||
|           break;
 | ||
| 
 | ||
|         case end:
 | ||
|           offsets[mainAxis] = offsets[mainAxis] + (reference[len] / 2 - element[len] / 2);
 | ||
|           break;
 | ||
|       }
 | ||
|     }
 | ||
| 
 | ||
|     return offsets;
 | ||
|   }
 | ||
| 
 | ||
|   function getFreshSideObject() {
 | ||
|     return {
 | ||
|       top: 0,
 | ||
|       right: 0,
 | ||
|       bottom: 0,
 | ||
|       left: 0
 | ||
|     };
 | ||
|   }
 | ||
| 
 | ||
|   function mergePaddingObject(paddingObject) {
 | ||
|     return Object.assign({}, getFreshSideObject(), paddingObject);
 | ||
|   }
 | ||
| 
 | ||
|   function expandToHashMap(value, keys) {
 | ||
|     return keys.reduce(function (hashMap, key) {
 | ||
|       hashMap[key] = value;
 | ||
|       return hashMap;
 | ||
|     }, {});
 | ||
|   }
 | ||
| 
 | ||
|   function detectOverflow(state, options) {
 | ||
|     if (options === void 0) {
 | ||
|       options = {};
 | ||
|     }
 | ||
| 
 | ||
|     var _options = options,
 | ||
|         _options$placement = _options.placement,
 | ||
|         placement = _options$placement === void 0 ? state.placement : _options$placement,
 | ||
|         _options$strategy = _options.strategy,
 | ||
|         strategy = _options$strategy === void 0 ? state.strategy : _options$strategy,
 | ||
|         _options$boundary = _options.boundary,
 | ||
|         boundary = _options$boundary === void 0 ? clippingParents : _options$boundary,
 | ||
|         _options$rootBoundary = _options.rootBoundary,
 | ||
|         rootBoundary = _options$rootBoundary === void 0 ? viewport : _options$rootBoundary,
 | ||
|         _options$elementConte = _options.elementContext,
 | ||
|         elementContext = _options$elementConte === void 0 ? popper : _options$elementConte,
 | ||
|         _options$altBoundary = _options.altBoundary,
 | ||
|         altBoundary = _options$altBoundary === void 0 ? false : _options$altBoundary,
 | ||
|         _options$padding = _options.padding,
 | ||
|         padding = _options$padding === void 0 ? 0 : _options$padding;
 | ||
|     var paddingObject = mergePaddingObject(typeof padding !== 'number' ? padding : expandToHashMap(padding, basePlacements));
 | ||
|     var altContext = elementContext === popper ? reference : popper;
 | ||
|     var popperRect = state.rects.popper;
 | ||
|     var element = state.elements[altBoundary ? altContext : elementContext];
 | ||
|     var clippingClientRect = getClippingRect(isElement(element) ? element : element.contextElement || getDocumentElement(state.elements.popper), boundary, rootBoundary, strategy);
 | ||
|     var referenceClientRect = getBoundingClientRect(state.elements.reference);
 | ||
|     var popperOffsets = computeOffsets({
 | ||
|       reference: referenceClientRect,
 | ||
|       element: popperRect,
 | ||
|       strategy: 'absolute',
 | ||
|       placement: placement
 | ||
|     });
 | ||
|     var popperClientRect = rectToClientRect(Object.assign({}, popperRect, popperOffsets));
 | ||
|     var elementClientRect = elementContext === popper ? popperClientRect : referenceClientRect; // positive = overflowing the clipping rect
 | ||
|     // 0 or negative = within the clipping rect
 | ||
| 
 | ||
|     var overflowOffsets = {
 | ||
|       top: clippingClientRect.top - elementClientRect.top + paddingObject.top,
 | ||
|       bottom: elementClientRect.bottom - clippingClientRect.bottom + paddingObject.bottom,
 | ||
|       left: clippingClientRect.left - elementClientRect.left + paddingObject.left,
 | ||
|       right: elementClientRect.right - clippingClientRect.right + paddingObject.right
 | ||
|     };
 | ||
|     var offsetData = state.modifiersData.offset; // Offsets can be applied only to the popper element
 | ||
| 
 | ||
|     if (elementContext === popper && offsetData) {
 | ||
|       var offset = offsetData[placement];
 | ||
|       Object.keys(overflowOffsets).forEach(function (key) {
 | ||
|         var multiply = [right, bottom].indexOf(key) >= 0 ? 1 : -1;
 | ||
|         var axis = [top, bottom].indexOf(key) >= 0 ? 'y' : 'x';
 | ||
|         overflowOffsets[key] += offset[axis] * multiply;
 | ||
|       });
 | ||
|     }
 | ||
| 
 | ||
|     return overflowOffsets;
 | ||
|   }
 | ||
| 
 | ||
|   var INVALID_ELEMENT_ERROR = 'Popper: Invalid reference or popper argument provided. They must be either a DOM element or virtual element.';
 | ||
|   var INFINITE_LOOP_ERROR = 'Popper: An infinite loop in the modifiers cycle has been detected! The cycle has been interrupted to prevent a browser crash.';
 | ||
|   var DEFAULT_OPTIONS = {
 | ||
|     placement: 'bottom',
 | ||
|     modifiers: [],
 | ||
|     strategy: 'absolute'
 | ||
|   };
 | ||
| 
 | ||
|   function areValidElements() {
 | ||
|     for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
 | ||
|       args[_key] = arguments[_key];
 | ||
|     }
 | ||
| 
 | ||
|     return !args.some(function (element) {
 | ||
|       return !(element && typeof element.getBoundingClientRect === 'function');
 | ||
|     });
 | ||
|   }
 | ||
| 
 | ||
|   function popperGenerator(generatorOptions) {
 | ||
|     if (generatorOptions === void 0) {
 | ||
|       generatorOptions = {};
 | ||
|     }
 | ||
| 
 | ||
|     var _generatorOptions = generatorOptions,
 | ||
|         _generatorOptions$def = _generatorOptions.defaultModifiers,
 | ||
|         defaultModifiers = _generatorOptions$def === void 0 ? [] : _generatorOptions$def,
 | ||
|         _generatorOptions$def2 = _generatorOptions.defaultOptions,
 | ||
|         defaultOptions = _generatorOptions$def2 === void 0 ? DEFAULT_OPTIONS : _generatorOptions$def2;
 | ||
|     return function createPopper(reference, popper, options) {
 | ||
|       if (options === void 0) {
 | ||
|         options = defaultOptions;
 | ||
|       }
 | ||
| 
 | ||
|       var state = {
 | ||
|         placement: 'bottom',
 | ||
|         orderedModifiers: [],
 | ||
|         options: Object.assign({}, DEFAULT_OPTIONS, defaultOptions),
 | ||
|         modifiersData: {},
 | ||
|         elements: {
 | ||
|           reference: reference,
 | ||
|           popper: popper
 | ||
|         },
 | ||
|         attributes: {},
 | ||
|         styles: {}
 | ||
|       };
 | ||
|       var effectCleanupFns = [];
 | ||
|       var isDestroyed = false;
 | ||
|       var instance = {
 | ||
|         state: state,
 | ||
|         setOptions: function setOptions(setOptionsAction) {
 | ||
|           var options = typeof setOptionsAction === 'function' ? setOptionsAction(state.options) : setOptionsAction;
 | ||
|           cleanupModifierEffects();
 | ||
|           state.options = Object.assign({}, defaultOptions, state.options, options);
 | ||
|           state.scrollParents = {
 | ||
|             reference: isElement(reference) ? listScrollParents(reference) : reference.contextElement ? listScrollParents(reference.contextElement) : [],
 | ||
|             popper: listScrollParents(popper)
 | ||
|           }; // Orders the modifiers based on their dependencies and `phase`
 | ||
|           // properties
 | ||
| 
 | ||
|           var orderedModifiers = orderModifiers(mergeByName([].concat(defaultModifiers, state.options.modifiers))); // Strip out disabled modifiers
 | ||
| 
 | ||
|           state.orderedModifiers = orderedModifiers.filter(function (m) {
 | ||
|             return m.enabled;
 | ||
|           }); // Validate the provided modifiers so that the consumer will get warned
 | ||
|           // if one of the modifiers is invalid for any reason
 | ||
| 
 | ||
|           {
 | ||
|             var modifiers = uniqueBy([].concat(orderedModifiers, state.options.modifiers), function (_ref) {
 | ||
|               var name = _ref.name;
 | ||
|               return name;
 | ||
|             });
 | ||
|             validateModifiers(modifiers);
 | ||
| 
 | ||
|             if (getBasePlacement(state.options.placement) === auto) {
 | ||
|               var flipModifier = state.orderedModifiers.find(function (_ref2) {
 | ||
|                 var name = _ref2.name;
 | ||
|                 return name === 'flip';
 | ||
|               });
 | ||
| 
 | ||
|               if (!flipModifier) {
 | ||
|                 console.error(['Popper: "auto" placements require the "flip" modifier be', 'present and enabled to work.'].join(' '));
 | ||
|               }
 | ||
|             }
 | ||
| 
 | ||
|             var _getComputedStyle = getComputedStyle(popper),
 | ||
|                 marginTop = _getComputedStyle.marginTop,
 | ||
|                 marginRight = _getComputedStyle.marginRight,
 | ||
|                 marginBottom = _getComputedStyle.marginBottom,
 | ||
|                 marginLeft = _getComputedStyle.marginLeft; // We no longer take into account `margins` on the popper, and it can
 | ||
|             // cause bugs with positioning, so we'll warn the consumer
 | ||
| 
 | ||
| 
 | ||
|             if ([marginTop, marginRight, marginBottom, marginLeft].some(function (margin) {
 | ||
|               return parseFloat(margin);
 | ||
|             })) {
 | ||
|               console.warn(['Popper: CSS "margin" styles cannot be used to apply padding', 'between the popper and its reference element or boundary.', 'To replicate margin, use the `offset` modifier, as well as', 'the `padding` option in the `preventOverflow` and `flip`', 'modifiers.'].join(' '));
 | ||
|             }
 | ||
|           }
 | ||
| 
 | ||
|           runModifierEffects();
 | ||
|           return instance.update();
 | ||
|         },
 | ||
|         // Sync update – it will always be executed, even if not necessary. This
 | ||
|         // is useful for low frequency updates where sync behavior simplifies the
 | ||
|         // logic.
 | ||
|         // For high frequency updates (e.g. `resize` and `scroll` events), always
 | ||
|         // prefer the async Popper#update method
 | ||
|         forceUpdate: function forceUpdate() {
 | ||
|           if (isDestroyed) {
 | ||
|             return;
 | ||
|           }
 | ||
| 
 | ||
|           var _state$elements = state.elements,
 | ||
|               reference = _state$elements.reference,
 | ||
|               popper = _state$elements.popper; // Don't proceed if `reference` or `popper` are not valid elements
 | ||
|           // anymore
 | ||
| 
 | ||
|           if (!areValidElements(reference, popper)) {
 | ||
|             {
 | ||
|               console.error(INVALID_ELEMENT_ERROR);
 | ||
|             }
 | ||
| 
 | ||
|             return;
 | ||
|           } // Store the reference and popper rects to be read by modifiers
 | ||
| 
 | ||
| 
 | ||
|           state.rects = {
 | ||
|             reference: getCompositeRect(reference, getOffsetParent(popper), state.options.strategy === 'fixed'),
 | ||
|             popper: getLayoutRect(popper)
 | ||
|           }; // Modifiers have the ability to reset the current update cycle. The
 | ||
|           // most common use case for this is the `flip` modifier changing the
 | ||
|           // placement, which then needs to re-run all the modifiers, because the
 | ||
|           // logic was previously ran for the previous placement and is therefore
 | ||
|           // stale/incorrect
 | ||
| 
 | ||
|           state.reset = false;
 | ||
|           state.placement = state.options.placement; // On each update cycle, the `modifiersData` property for each modifier
 | ||
|           // is filled with the initial data specified by the modifier. This means
 | ||
|           // it doesn't persist and is fresh on each update.
 | ||
|           // To ensure persistent data, use `${name}#persistent`
 | ||
| 
 | ||
|           state.orderedModifiers.forEach(function (modifier) {
 | ||
|             return state.modifiersData[modifier.name] = Object.assign({}, modifier.data);
 | ||
|           });
 | ||
|           var __debug_loops__ = 0;
 | ||
| 
 | ||
|           for (var index = 0; index < state.orderedModifiers.length; index++) {
 | ||
|             {
 | ||
|               __debug_loops__ += 1;
 | ||
| 
 | ||
|               if (__debug_loops__ > 100) {
 | ||
|                 console.error(INFINITE_LOOP_ERROR);
 | ||
|                 break;
 | ||
|               }
 | ||
|             }
 | ||
| 
 | ||
|             if (state.reset === true) {
 | ||
|               state.reset = false;
 | ||
|               index = -1;
 | ||
|               continue;
 | ||
|             }
 | ||
| 
 | ||
|             var _state$orderedModifie = state.orderedModifiers[index],
 | ||
|                 fn = _state$orderedModifie.fn,
 | ||
|                 _state$orderedModifie2 = _state$orderedModifie.options,
 | ||
|                 _options = _state$orderedModifie2 === void 0 ? {} : _state$orderedModifie2,
 | ||
|                 name = _state$orderedModifie.name;
 | ||
| 
 | ||
|             if (typeof fn === 'function') {
 | ||
|               state = fn({
 | ||
|                 state: state,
 | ||
|                 options: _options,
 | ||
|                 name: name,
 | ||
|                 instance: instance
 | ||
|               }) || state;
 | ||
|             }
 | ||
|           }
 | ||
|         },
 | ||
|         // Async and optimistically optimized update – it will not be executed if
 | ||
|         // not necessary (debounced to run at most once-per-tick)
 | ||
|         update: debounce(function () {
 | ||
|           return new Promise(function (resolve) {
 | ||
|             instance.forceUpdate();
 | ||
|             resolve(state);
 | ||
|           });
 | ||
|         }),
 | ||
|         destroy: function destroy() {
 | ||
|           cleanupModifierEffects();
 | ||
|           isDestroyed = true;
 | ||
|         }
 | ||
|       };
 | ||
| 
 | ||
|       if (!areValidElements(reference, popper)) {
 | ||
|         {
 | ||
|           console.error(INVALID_ELEMENT_ERROR);
 | ||
|         }
 | ||
| 
 | ||
|         return instance;
 | ||
|       }
 | ||
| 
 | ||
|       instance.setOptions(options).then(function (state) {
 | ||
|         if (!isDestroyed && options.onFirstUpdate) {
 | ||
|           options.onFirstUpdate(state);
 | ||
|         }
 | ||
|       }); // Modifiers have the ability to execute arbitrary code before the first
 | ||
|       // update cycle runs. They will be executed in the same order as the update
 | ||
|       // cycle. This is useful when a modifier adds some persistent data that
 | ||
|       // other modifiers need to use, but the modifier is run after the dependent
 | ||
|       // one.
 | ||
| 
 | ||
|       function runModifierEffects() {
 | ||
|         state.orderedModifiers.forEach(function (_ref3) {
 | ||
|           var name = _ref3.name,
 | ||
|               _ref3$options = _ref3.options,
 | ||
|               options = _ref3$options === void 0 ? {} : _ref3$options,
 | ||
|               effect = _ref3.effect;
 | ||
| 
 | ||
|           if (typeof effect === 'function') {
 | ||
|             var cleanupFn = effect({
 | ||
|               state: state,
 | ||
|               name: name,
 | ||
|               instance: instance,
 | ||
|               options: options
 | ||
|             });
 | ||
| 
 | ||
|             var noopFn = function noopFn() {};
 | ||
| 
 | ||
|             effectCleanupFns.push(cleanupFn || noopFn);
 | ||
|           }
 | ||
|         });
 | ||
|       }
 | ||
| 
 | ||
|       function cleanupModifierEffects() {
 | ||
|         effectCleanupFns.forEach(function (fn) {
 | ||
|           return fn();
 | ||
|         });
 | ||
|         effectCleanupFns = [];
 | ||
|       }
 | ||
| 
 | ||
|       return instance;
 | ||
|     };
 | ||
|   }
 | ||
| 
 | ||
|   var passive = {
 | ||
|     passive: true
 | ||
|   };
 | ||
| 
 | ||
|   function effect$2(_ref) {
 | ||
|     var state = _ref.state,
 | ||
|         instance = _ref.instance,
 | ||
|         options = _ref.options;
 | ||
|     var _options$scroll = options.scroll,
 | ||
|         scroll = _options$scroll === void 0 ? true : _options$scroll,
 | ||
|         _options$resize = options.resize,
 | ||
|         resize = _options$resize === void 0 ? true : _options$resize;
 | ||
|     var window = getWindow(state.elements.popper);
 | ||
|     var scrollParents = [].concat(state.scrollParents.reference, state.scrollParents.popper);
 | ||
| 
 | ||
|     if (scroll) {
 | ||
|       scrollParents.forEach(function (scrollParent) {
 | ||
|         scrollParent.addEventListener('scroll', instance.update, passive);
 | ||
|       });
 | ||
|     }
 | ||
| 
 | ||
|     if (resize) {
 | ||
|       window.addEventListener('resize', instance.update, passive);
 | ||
|     }
 | ||
| 
 | ||
|     return function () {
 | ||
|       if (scroll) {
 | ||
|         scrollParents.forEach(function (scrollParent) {
 | ||
|           scrollParent.removeEventListener('scroll', instance.update, passive);
 | ||
|         });
 | ||
|       }
 | ||
| 
 | ||
|       if (resize) {
 | ||
|         window.removeEventListener('resize', instance.update, passive);
 | ||
|       }
 | ||
|     };
 | ||
|   } // eslint-disable-next-line import/no-unused-modules
 | ||
| 
 | ||
| 
 | ||
|   var eventListeners = {
 | ||
|     name: 'eventListeners',
 | ||
|     enabled: true,
 | ||
|     phase: 'write',
 | ||
|     fn: function fn() {},
 | ||
|     effect: effect$2,
 | ||
|     data: {}
 | ||
|   };
 | ||
| 
 | ||
|   function popperOffsets(_ref) {
 | ||
|     var state = _ref.state,
 | ||
|         name = _ref.name;
 | ||
|     // Offsets are the actual position the popper needs to have to be
 | ||
|     // properly positioned near its reference element
 | ||
|     // This is the most basic placement, and will be adjusted by
 | ||
|     // the modifiers in the next step
 | ||
|     state.modifiersData[name] = computeOffsets({
 | ||
|       reference: state.rects.reference,
 | ||
|       element: state.rects.popper,
 | ||
|       strategy: 'absolute',
 | ||
|       placement: state.placement
 | ||
|     });
 | ||
|   } // eslint-disable-next-line import/no-unused-modules
 | ||
| 
 | ||
| 
 | ||
|   var popperOffsets$1 = {
 | ||
|     name: 'popperOffsets',
 | ||
|     enabled: true,
 | ||
|     phase: 'read',
 | ||
|     fn: popperOffsets,
 | ||
|     data: {}
 | ||
|   };
 | ||
| 
 | ||
|   var unsetSides = {
 | ||
|     top: 'auto',
 | ||
|     right: 'auto',
 | ||
|     bottom: 'auto',
 | ||
|     left: 'auto'
 | ||
|   }; // Round the offsets to the nearest suitable subpixel based on the DPR.
 | ||
|   // Zooming can change the DPR, but it seems to report a value that will
 | ||
|   // cleanly divide the values into the appropriate subpixels.
 | ||
| 
 | ||
|   function roundOffsetsByDPR(_ref) {
 | ||
|     var x = _ref.x,
 | ||
|         y = _ref.y;
 | ||
|     var win = window;
 | ||
|     var dpr = win.devicePixelRatio || 1;
 | ||
|     return {
 | ||
|       x: round(x * dpr) / dpr || 0,
 | ||
|       y: round(y * dpr) / dpr || 0
 | ||
|     };
 | ||
|   }
 | ||
| 
 | ||
|   function mapToStyles(_ref2) {
 | ||
|     var _Object$assign2;
 | ||
| 
 | ||
|     var popper = _ref2.popper,
 | ||
|         popperRect = _ref2.popperRect,
 | ||
|         placement = _ref2.placement,
 | ||
|         variation = _ref2.variation,
 | ||
|         offsets = _ref2.offsets,
 | ||
|         position = _ref2.position,
 | ||
|         gpuAcceleration = _ref2.gpuAcceleration,
 | ||
|         adaptive = _ref2.adaptive,
 | ||
|         roundOffsets = _ref2.roundOffsets,
 | ||
|         isFixed = _ref2.isFixed;
 | ||
|     var _offsets$x = offsets.x,
 | ||
|         x = _offsets$x === void 0 ? 0 : _offsets$x,
 | ||
|         _offsets$y = offsets.y,
 | ||
|         y = _offsets$y === void 0 ? 0 : _offsets$y;
 | ||
| 
 | ||
|     var _ref3 = typeof roundOffsets === 'function' ? roundOffsets({
 | ||
|       x: x,
 | ||
|       y: y
 | ||
|     }) : {
 | ||
|       x: x,
 | ||
|       y: y
 | ||
|     };
 | ||
| 
 | ||
|     x = _ref3.x;
 | ||
|     y = _ref3.y;
 | ||
|     var hasX = offsets.hasOwnProperty('x');
 | ||
|     var hasY = offsets.hasOwnProperty('y');
 | ||
|     var sideX = left;
 | ||
|     var sideY = top;
 | ||
|     var win = window;
 | ||
| 
 | ||
|     if (adaptive) {
 | ||
|       var offsetParent = getOffsetParent(popper);
 | ||
|       var heightProp = 'clientHeight';
 | ||
|       var widthProp = 'clientWidth';
 | ||
| 
 | ||
|       if (offsetParent === getWindow(popper)) {
 | ||
|         offsetParent = getDocumentElement(popper);
 | ||
| 
 | ||
|         if (getComputedStyle(offsetParent).position !== 'static' && position === 'absolute') {
 | ||
|           heightProp = 'scrollHeight';
 | ||
|           widthProp = 'scrollWidth';
 | ||
|         }
 | ||
|       } // $FlowFixMe[incompatible-cast]: force type refinement, we compare offsetParent with window above, but Flow doesn't detect it
 | ||
| 
 | ||
| 
 | ||
|       offsetParent = offsetParent;
 | ||
| 
 | ||
|       if (placement === top || (placement === left || placement === right) && variation === end) {
 | ||
|         sideY = bottom;
 | ||
|         var offsetY = isFixed && offsetParent === win && win.visualViewport ? win.visualViewport.height : // $FlowFixMe[prop-missing]
 | ||
|         offsetParent[heightProp];
 | ||
|         y -= offsetY - popperRect.height;
 | ||
|         y *= gpuAcceleration ? 1 : -1;
 | ||
|       }
 | ||
| 
 | ||
|       if (placement === left || (placement === top || placement === bottom) && variation === end) {
 | ||
|         sideX = right;
 | ||
|         var offsetX = isFixed && offsetParent === win && win.visualViewport ? win.visualViewport.width : // $FlowFixMe[prop-missing]
 | ||
|         offsetParent[widthProp];
 | ||
|         x -= offsetX - popperRect.width;
 | ||
|         x *= gpuAcceleration ? 1 : -1;
 | ||
|       }
 | ||
|     }
 | ||
| 
 | ||
|     var commonStyles = Object.assign({
 | ||
|       position: position
 | ||
|     }, adaptive && unsetSides);
 | ||
| 
 | ||
|     var _ref4 = roundOffsets === true ? roundOffsetsByDPR({
 | ||
|       x: x,
 | ||
|       y: y
 | ||
|     }) : {
 | ||
|       x: x,
 | ||
|       y: y
 | ||
|     };
 | ||
| 
 | ||
|     x = _ref4.x;
 | ||
|     y = _ref4.y;
 | ||
| 
 | ||
|     if (gpuAcceleration) {
 | ||
|       var _Object$assign;
 | ||
| 
 | ||
|       return Object.assign({}, commonStyles, (_Object$assign = {}, _Object$assign[sideY] = hasY ? '0' : '', _Object$assign[sideX] = hasX ? '0' : '', _Object$assign.transform = (win.devicePixelRatio || 1) <= 1 ? "translate(" + x + "px, " + y + "px)" : "translate3d(" + x + "px, " + y + "px, 0)", _Object$assign));
 | ||
|     }
 | ||
| 
 | ||
|     return Object.assign({}, commonStyles, (_Object$assign2 = {}, _Object$assign2[sideY] = hasY ? y + "px" : '', _Object$assign2[sideX] = hasX ? x + "px" : '', _Object$assign2.transform = '', _Object$assign2));
 | ||
|   }
 | ||
| 
 | ||
|   function computeStyles(_ref5) {
 | ||
|     var state = _ref5.state,
 | ||
|         options = _ref5.options;
 | ||
|     var _options$gpuAccelerat = options.gpuAcceleration,
 | ||
|         gpuAcceleration = _options$gpuAccelerat === void 0 ? true : _options$gpuAccelerat,
 | ||
|         _options$adaptive = options.adaptive,
 | ||
|         adaptive = _options$adaptive === void 0 ? true : _options$adaptive,
 | ||
|         _options$roundOffsets = options.roundOffsets,
 | ||
|         roundOffsets = _options$roundOffsets === void 0 ? true : _options$roundOffsets;
 | ||
| 
 | ||
|     {
 | ||
|       var transitionProperty = getComputedStyle(state.elements.popper).transitionProperty || '';
 | ||
| 
 | ||
|       if (adaptive && ['transform', 'top', 'right', 'bottom', 'left'].some(function (property) {
 | ||
|         return transitionProperty.indexOf(property) >= 0;
 | ||
|       })) {
 | ||
|         console.warn(['Popper: Detected CSS transitions on at least one of the following', 'CSS properties: "transform", "top", "right", "bottom", "left".', '\n\n', 'Disable the "computeStyles" modifier\'s `adaptive` option to allow', 'for smooth transitions, or remove these properties from the CSS', 'transition declaration on the popper element if only transitioning', 'opacity or background-color for example.', '\n\n', 'We recommend using the popper element as a wrapper around an inner', 'element that can have any CSS property transitioned for animations.'].join(' '));
 | ||
|       }
 | ||
|     }
 | ||
| 
 | ||
|     var commonStyles = {
 | ||
|       placement: getBasePlacement(state.placement),
 | ||
|       variation: getVariation(state.placement),
 | ||
|       popper: state.elements.popper,
 | ||
|       popperRect: state.rects.popper,
 | ||
|       gpuAcceleration: gpuAcceleration,
 | ||
|       isFixed: state.options.strategy === 'fixed'
 | ||
|     };
 | ||
| 
 | ||
|     if (state.modifiersData.popperOffsets != null) {
 | ||
|       state.styles.popper = Object.assign({}, state.styles.popper, mapToStyles(Object.assign({}, commonStyles, {
 | ||
|         offsets: state.modifiersData.popperOffsets,
 | ||
|         position: state.options.strategy,
 | ||
|         adaptive: adaptive,
 | ||
|         roundOffsets: roundOffsets
 | ||
|       })));
 | ||
|     }
 | ||
| 
 | ||
|     if (state.modifiersData.arrow != null) {
 | ||
|       state.styles.arrow = Object.assign({}, state.styles.arrow, mapToStyles(Object.assign({}, commonStyles, {
 | ||
|         offsets: state.modifiersData.arrow,
 | ||
|         position: 'absolute',
 | ||
|         adaptive: false,
 | ||
|         roundOffsets: roundOffsets
 | ||
|       })));
 | ||
|     }
 | ||
| 
 | ||
|     state.attributes.popper = Object.assign({}, state.attributes.popper, {
 | ||
|       'data-popper-placement': state.placement
 | ||
|     });
 | ||
|   } // eslint-disable-next-line import/no-unused-modules
 | ||
| 
 | ||
| 
 | ||
|   var computeStyles$1 = {
 | ||
|     name: 'computeStyles',
 | ||
|     enabled: true,
 | ||
|     phase: 'beforeWrite',
 | ||
|     fn: computeStyles,
 | ||
|     data: {}
 | ||
|   };
 | ||
| 
 | ||
|   // and applies them to the HTMLElements such as popper and arrow
 | ||
| 
 | ||
|   function applyStyles(_ref) {
 | ||
|     var state = _ref.state;
 | ||
|     Object.keys(state.elements).forEach(function (name) {
 | ||
|       var style = state.styles[name] || {};
 | ||
|       var attributes = state.attributes[name] || {};
 | ||
|       var element = state.elements[name]; // arrow is optional + virtual elements
 | ||
| 
 | ||
|       if (!isHTMLElement(element) || !getNodeName(element)) {
 | ||
|         return;
 | ||
|       } // Flow doesn't support to extend this property, but it's the most
 | ||
|       // effective way to apply styles to an HTMLElement
 | ||
|       // $FlowFixMe[cannot-write]
 | ||
| 
 | ||
| 
 | ||
|       Object.assign(element.style, style);
 | ||
|       Object.keys(attributes).forEach(function (name) {
 | ||
|         var value = attributes[name];
 | ||
| 
 | ||
|         if (value === false) {
 | ||
|           element.removeAttribute(name);
 | ||
|         } else {
 | ||
|           element.setAttribute(name, value === true ? '' : value);
 | ||
|         }
 | ||
|       });
 | ||
|     });
 | ||
|   }
 | ||
| 
 | ||
|   function effect$1(_ref2) {
 | ||
|     var state = _ref2.state;
 | ||
|     var initialStyles = {
 | ||
|       popper: {
 | ||
|         position: state.options.strategy,
 | ||
|         left: '0',
 | ||
|         top: '0',
 | ||
|         margin: '0'
 | ||
|       },
 | ||
|       arrow: {
 | ||
|         position: 'absolute'
 | ||
|       },
 | ||
|       reference: {}
 | ||
|     };
 | ||
|     Object.assign(state.elements.popper.style, initialStyles.popper);
 | ||
|     state.styles = initialStyles;
 | ||
| 
 | ||
|     if (state.elements.arrow) {
 | ||
|       Object.assign(state.elements.arrow.style, initialStyles.arrow);
 | ||
|     }
 | ||
| 
 | ||
|     return function () {
 | ||
|       Object.keys(state.elements).forEach(function (name) {
 | ||
|         var element = state.elements[name];
 | ||
|         var attributes = state.attributes[name] || {};
 | ||
|         var styleProperties = Object.keys(state.styles.hasOwnProperty(name) ? state.styles[name] : initialStyles[name]); // Set all values to an empty string to unset them
 | ||
| 
 | ||
|         var style = styleProperties.reduce(function (style, property) {
 | ||
|           style[property] = '';
 | ||
|           return style;
 | ||
|         }, {}); // arrow is optional + virtual elements
 | ||
| 
 | ||
|         if (!isHTMLElement(element) || !getNodeName(element)) {
 | ||
|           return;
 | ||
|         }
 | ||
| 
 | ||
|         Object.assign(element.style, style);
 | ||
|         Object.keys(attributes).forEach(function (attribute) {
 | ||
|           element.removeAttribute(attribute);
 | ||
|         });
 | ||
|       });
 | ||
|     };
 | ||
|   } // eslint-disable-next-line import/no-unused-modules
 | ||
| 
 | ||
| 
 | ||
|   var applyStyles$1 = {
 | ||
|     name: 'applyStyles',
 | ||
|     enabled: true,
 | ||
|     phase: 'write',
 | ||
|     fn: applyStyles,
 | ||
|     effect: effect$1,
 | ||
|     requires: ['computeStyles']
 | ||
|   };
 | ||
| 
 | ||
|   function distanceAndSkiddingToXY(placement, rects, offset) {
 | ||
|     var basePlacement = getBasePlacement(placement);
 | ||
|     var invertDistance = [left, top].indexOf(basePlacement) >= 0 ? -1 : 1;
 | ||
| 
 | ||
|     var _ref = typeof offset === 'function' ? offset(Object.assign({}, rects, {
 | ||
|       placement: placement
 | ||
|     })) : offset,
 | ||
|         skidding = _ref[0],
 | ||
|         distance = _ref[1];
 | ||
| 
 | ||
|     skidding = skidding || 0;
 | ||
|     distance = (distance || 0) * invertDistance;
 | ||
|     return [left, right].indexOf(basePlacement) >= 0 ? {
 | ||
|       x: distance,
 | ||
|       y: skidding
 | ||
|     } : {
 | ||
|       x: skidding,
 | ||
|       y: distance
 | ||
|     };
 | ||
|   }
 | ||
| 
 | ||
|   function offset(_ref2) {
 | ||
|     var state = _ref2.state,
 | ||
|         options = _ref2.options,
 | ||
|         name = _ref2.name;
 | ||
|     var _options$offset = options.offset,
 | ||
|         offset = _options$offset === void 0 ? [0, 0] : _options$offset;
 | ||
|     var data = placements.reduce(function (acc, placement) {
 | ||
|       acc[placement] = distanceAndSkiddingToXY(placement, state.rects, offset);
 | ||
|       return acc;
 | ||
|     }, {});
 | ||
|     var _data$state$placement = data[state.placement],
 | ||
|         x = _data$state$placement.x,
 | ||
|         y = _data$state$placement.y;
 | ||
| 
 | ||
|     if (state.modifiersData.popperOffsets != null) {
 | ||
|       state.modifiersData.popperOffsets.x += x;
 | ||
|       state.modifiersData.popperOffsets.y += y;
 | ||
|     }
 | ||
| 
 | ||
|     state.modifiersData[name] = data;
 | ||
|   } // eslint-disable-next-line import/no-unused-modules
 | ||
| 
 | ||
| 
 | ||
|   var offset$1 = {
 | ||
|     name: 'offset',
 | ||
|     enabled: true,
 | ||
|     phase: 'main',
 | ||
|     requires: ['popperOffsets'],
 | ||
|     fn: offset
 | ||
|   };
 | ||
| 
 | ||
|   var hash$1 = {
 | ||
|     left: 'right',
 | ||
|     right: 'left',
 | ||
|     bottom: 'top',
 | ||
|     top: 'bottom'
 | ||
|   };
 | ||
|   function getOppositePlacement(placement) {
 | ||
|     return placement.replace(/left|right|bottom|top/g, function (matched) {
 | ||
|       return hash$1[matched];
 | ||
|     });
 | ||
|   }
 | ||
| 
 | ||
|   var hash = {
 | ||
|     start: 'end',
 | ||
|     end: 'start'
 | ||
|   };
 | ||
|   function getOppositeVariationPlacement(placement) {
 | ||
|     return placement.replace(/start|end/g, function (matched) {
 | ||
|       return hash[matched];
 | ||
|     });
 | ||
|   }
 | ||
| 
 | ||
|   function computeAutoPlacement(state, options) {
 | ||
|     if (options === void 0) {
 | ||
|       options = {};
 | ||
|     }
 | ||
| 
 | ||
|     var _options = options,
 | ||
|         placement = _options.placement,
 | ||
|         boundary = _options.boundary,
 | ||
|         rootBoundary = _options.rootBoundary,
 | ||
|         padding = _options.padding,
 | ||
|         flipVariations = _options.flipVariations,
 | ||
|         _options$allowedAutoP = _options.allowedAutoPlacements,
 | ||
|         allowedAutoPlacements = _options$allowedAutoP === void 0 ? placements : _options$allowedAutoP;
 | ||
|     var variation = getVariation(placement);
 | ||
|     var placements$1 = variation ? flipVariations ? variationPlacements : variationPlacements.filter(function (placement) {
 | ||
|       return getVariation(placement) === variation;
 | ||
|     }) : basePlacements;
 | ||
|     var allowedPlacements = placements$1.filter(function (placement) {
 | ||
|       return allowedAutoPlacements.indexOf(placement) >= 0;
 | ||
|     });
 | ||
| 
 | ||
|     if (allowedPlacements.length === 0) {
 | ||
|       allowedPlacements = placements$1;
 | ||
| 
 | ||
|       {
 | ||
|         console.error(['Popper: The `allowedAutoPlacements` option did not allow any', 'placements. Ensure the `placement` option matches the variation', 'of the allowed placements.', 'For example, "auto" cannot be used to allow "bottom-start".', 'Use "auto-start" instead.'].join(' '));
 | ||
|       }
 | ||
|     } // $FlowFixMe[incompatible-type]: Flow seems to have problems with two array unions...
 | ||
| 
 | ||
| 
 | ||
|     var overflows = allowedPlacements.reduce(function (acc, placement) {
 | ||
|       acc[placement] = detectOverflow(state, {
 | ||
|         placement: placement,
 | ||
|         boundary: boundary,
 | ||
|         rootBoundary: rootBoundary,
 | ||
|         padding: padding
 | ||
|       })[getBasePlacement(placement)];
 | ||
|       return acc;
 | ||
|     }, {});
 | ||
|     return Object.keys(overflows).sort(function (a, b) {
 | ||
|       return overflows[a] - overflows[b];
 | ||
|     });
 | ||
|   }
 | ||
| 
 | ||
|   function getExpandedFallbackPlacements(placement) {
 | ||
|     if (getBasePlacement(placement) === auto) {
 | ||
|       return [];
 | ||
|     }
 | ||
| 
 | ||
|     var oppositePlacement = getOppositePlacement(placement);
 | ||
|     return [getOppositeVariationPlacement(placement), oppositePlacement, getOppositeVariationPlacement(oppositePlacement)];
 | ||
|   }
 | ||
| 
 | ||
|   function flip(_ref) {
 | ||
|     var state = _ref.state,
 | ||
|         options = _ref.options,
 | ||
|         name = _ref.name;
 | ||
| 
 | ||
|     if (state.modifiersData[name]._skip) {
 | ||
|       return;
 | ||
|     }
 | ||
| 
 | ||
|     var _options$mainAxis = options.mainAxis,
 | ||
|         checkMainAxis = _options$mainAxis === void 0 ? true : _options$mainAxis,
 | ||
|         _options$altAxis = options.altAxis,
 | ||
|         checkAltAxis = _options$altAxis === void 0 ? true : _options$altAxis,
 | ||
|         specifiedFallbackPlacements = options.fallbackPlacements,
 | ||
|         padding = options.padding,
 | ||
|         boundary = options.boundary,
 | ||
|         rootBoundary = options.rootBoundary,
 | ||
|         altBoundary = options.altBoundary,
 | ||
|         _options$flipVariatio = options.flipVariations,
 | ||
|         flipVariations = _options$flipVariatio === void 0 ? true : _options$flipVariatio,
 | ||
|         allowedAutoPlacements = options.allowedAutoPlacements;
 | ||
|     var preferredPlacement = state.options.placement;
 | ||
|     var basePlacement = getBasePlacement(preferredPlacement);
 | ||
|     var isBasePlacement = basePlacement === preferredPlacement;
 | ||
|     var fallbackPlacements = specifiedFallbackPlacements || (isBasePlacement || !flipVariations ? [getOppositePlacement(preferredPlacement)] : getExpandedFallbackPlacements(preferredPlacement));
 | ||
|     var placements = [preferredPlacement].concat(fallbackPlacements).reduce(function (acc, placement) {
 | ||
|       return acc.concat(getBasePlacement(placement) === auto ? computeAutoPlacement(state, {
 | ||
|         placement: placement,
 | ||
|         boundary: boundary,
 | ||
|         rootBoundary: rootBoundary,
 | ||
|         padding: padding,
 | ||
|         flipVariations: flipVariations,
 | ||
|         allowedAutoPlacements: allowedAutoPlacements
 | ||
|       }) : placement);
 | ||
|     }, []);
 | ||
|     var referenceRect = state.rects.reference;
 | ||
|     var popperRect = state.rects.popper;
 | ||
|     var checksMap = new Map();
 | ||
|     var makeFallbackChecks = true;
 | ||
|     var firstFittingPlacement = placements[0];
 | ||
| 
 | ||
|     for (var i = 0; i < placements.length; i++) {
 | ||
|       var placement = placements[i];
 | ||
| 
 | ||
|       var _basePlacement = getBasePlacement(placement);
 | ||
| 
 | ||
|       var isStartVariation = getVariation(placement) === start;
 | ||
|       var isVertical = [top, bottom].indexOf(_basePlacement) >= 0;
 | ||
|       var len = isVertical ? 'width' : 'height';
 | ||
|       var overflow = detectOverflow(state, {
 | ||
|         placement: placement,
 | ||
|         boundary: boundary,
 | ||
|         rootBoundary: rootBoundary,
 | ||
|         altBoundary: altBoundary,
 | ||
|         padding: padding
 | ||
|       });
 | ||
|       var mainVariationSide = isVertical ? isStartVariation ? right : left : isStartVariation ? bottom : top;
 | ||
| 
 | ||
|       if (referenceRect[len] > popperRect[len]) {
 | ||
|         mainVariationSide = getOppositePlacement(mainVariationSide);
 | ||
|       }
 | ||
| 
 | ||
|       var altVariationSide = getOppositePlacement(mainVariationSide);
 | ||
|       var checks = [];
 | ||
| 
 | ||
|       if (checkMainAxis) {
 | ||
|         checks.push(overflow[_basePlacement] <= 0);
 | ||
|       }
 | ||
| 
 | ||
|       if (checkAltAxis) {
 | ||
|         checks.push(overflow[mainVariationSide] <= 0, overflow[altVariationSide] <= 0);
 | ||
|       }
 | ||
| 
 | ||
|       if (checks.every(function (check) {
 | ||
|         return check;
 | ||
|       })) {
 | ||
|         firstFittingPlacement = placement;
 | ||
|         makeFallbackChecks = false;
 | ||
|         break;
 | ||
|       }
 | ||
| 
 | ||
|       checksMap.set(placement, checks);
 | ||
|     }
 | ||
| 
 | ||
|     if (makeFallbackChecks) {
 | ||
|       // `2` may be desired in some cases – research later
 | ||
|       var numberOfChecks = flipVariations ? 3 : 1;
 | ||
| 
 | ||
|       var _loop = function _loop(_i) {
 | ||
|         var fittingPlacement = placements.find(function (placement) {
 | ||
|           var checks = checksMap.get(placement);
 | ||
| 
 | ||
|           if (checks) {
 | ||
|             return checks.slice(0, _i).every(function (check) {
 | ||
|               return check;
 | ||
|             });
 | ||
|           }
 | ||
|         });
 | ||
| 
 | ||
|         if (fittingPlacement) {
 | ||
|           firstFittingPlacement = fittingPlacement;
 | ||
|           return "break";
 | ||
|         }
 | ||
|       };
 | ||
| 
 | ||
|       for (var _i = numberOfChecks; _i > 0; _i--) {
 | ||
|         var _ret = _loop(_i);
 | ||
| 
 | ||
|         if (_ret === "break") break;
 | ||
|       }
 | ||
|     }
 | ||
| 
 | ||
|     if (state.placement !== firstFittingPlacement) {
 | ||
|       state.modifiersData[name]._skip = true;
 | ||
|       state.placement = firstFittingPlacement;
 | ||
|       state.reset = true;
 | ||
|     }
 | ||
|   } // eslint-disable-next-line import/no-unused-modules
 | ||
| 
 | ||
| 
 | ||
|   var flip$1 = {
 | ||
|     name: 'flip',
 | ||
|     enabled: true,
 | ||
|     phase: 'main',
 | ||
|     fn: flip,
 | ||
|     requiresIfExists: ['offset'],
 | ||
|     data: {
 | ||
|       _skip: false
 | ||
|     }
 | ||
|   };
 | ||
| 
 | ||
|   function getAltAxis(axis) {
 | ||
|     return axis === 'x' ? 'y' : 'x';
 | ||
|   }
 | ||
| 
 | ||
|   function within(min$1, value, max$1) {
 | ||
|     return max(min$1, min(value, max$1));
 | ||
|   }
 | ||
|   function withinMaxClamp(min, value, max) {
 | ||
|     var v = within(min, value, max);
 | ||
|     return v > max ? max : v;
 | ||
|   }
 | ||
| 
 | ||
|   function preventOverflow(_ref) {
 | ||
|     var state = _ref.state,
 | ||
|         options = _ref.options,
 | ||
|         name = _ref.name;
 | ||
|     var _options$mainAxis = options.mainAxis,
 | ||
|         checkMainAxis = _options$mainAxis === void 0 ? true : _options$mainAxis,
 | ||
|         _options$altAxis = options.altAxis,
 | ||
|         checkAltAxis = _options$altAxis === void 0 ? false : _options$altAxis,
 | ||
|         boundary = options.boundary,
 | ||
|         rootBoundary = options.rootBoundary,
 | ||
|         altBoundary = options.altBoundary,
 | ||
|         padding = options.padding,
 | ||
|         _options$tether = options.tether,
 | ||
|         tether = _options$tether === void 0 ? true : _options$tether,
 | ||
|         _options$tetherOffset = options.tetherOffset,
 | ||
|         tetherOffset = _options$tetherOffset === void 0 ? 0 : _options$tetherOffset;
 | ||
|     var overflow = detectOverflow(state, {
 | ||
|       boundary: boundary,
 | ||
|       rootBoundary: rootBoundary,
 | ||
|       padding: padding,
 | ||
|       altBoundary: altBoundary
 | ||
|     });
 | ||
|     var basePlacement = getBasePlacement(state.placement);
 | ||
|     var variation = getVariation(state.placement);
 | ||
|     var isBasePlacement = !variation;
 | ||
|     var mainAxis = getMainAxisFromPlacement(basePlacement);
 | ||
|     var altAxis = getAltAxis(mainAxis);
 | ||
|     var popperOffsets = state.modifiersData.popperOffsets;
 | ||
|     var referenceRect = state.rects.reference;
 | ||
|     var popperRect = state.rects.popper;
 | ||
|     var tetherOffsetValue = typeof tetherOffset === 'function' ? tetherOffset(Object.assign({}, state.rects, {
 | ||
|       placement: state.placement
 | ||
|     })) : tetherOffset;
 | ||
|     var normalizedTetherOffsetValue = typeof tetherOffsetValue === 'number' ? {
 | ||
|       mainAxis: tetherOffsetValue,
 | ||
|       altAxis: tetherOffsetValue
 | ||
|     } : Object.assign({
 | ||
|       mainAxis: 0,
 | ||
|       altAxis: 0
 | ||
|     }, tetherOffsetValue);
 | ||
|     var offsetModifierState = state.modifiersData.offset ? state.modifiersData.offset[state.placement] : null;
 | ||
|     var data = {
 | ||
|       x: 0,
 | ||
|       y: 0
 | ||
|     };
 | ||
| 
 | ||
|     if (!popperOffsets) {
 | ||
|       return;
 | ||
|     }
 | ||
| 
 | ||
|     if (checkMainAxis) {
 | ||
|       var _offsetModifierState$;
 | ||
| 
 | ||
|       var mainSide = mainAxis === 'y' ? top : left;
 | ||
|       var altSide = mainAxis === 'y' ? bottom : right;
 | ||
|       var len = mainAxis === 'y' ? 'height' : 'width';
 | ||
|       var offset = popperOffsets[mainAxis];
 | ||
|       var min$1 = offset + overflow[mainSide];
 | ||
|       var max$1 = offset - overflow[altSide];
 | ||
|       var additive = tether ? -popperRect[len] / 2 : 0;
 | ||
|       var minLen = variation === start ? referenceRect[len] : popperRect[len];
 | ||
|       var maxLen = variation === start ? -popperRect[len] : -referenceRect[len]; // We need to include the arrow in the calculation so the arrow doesn't go
 | ||
|       // outside the reference bounds
 | ||
| 
 | ||
|       var arrowElement = state.elements.arrow;
 | ||
|       var arrowRect = tether && arrowElement ? getLayoutRect(arrowElement) : {
 | ||
|         width: 0,
 | ||
|         height: 0
 | ||
|       };
 | ||
|       var arrowPaddingObject = state.modifiersData['arrow#persistent'] ? state.modifiersData['arrow#persistent'].padding : getFreshSideObject();
 | ||
|       var arrowPaddingMin = arrowPaddingObject[mainSide];
 | ||
|       var arrowPaddingMax = arrowPaddingObject[altSide]; // If the reference length is smaller than the arrow length, we don't want
 | ||
|       // to include its full size in the calculation. If the reference is small
 | ||
|       // and near the edge of a boundary, the popper can overflow even if the
 | ||
|       // reference is not overflowing as well (e.g. virtual elements with no
 | ||
|       // width or height)
 | ||
| 
 | ||
|       var arrowLen = within(0, referenceRect[len], arrowRect[len]);
 | ||
|       var minOffset = isBasePlacement ? referenceRect[len] / 2 - additive - arrowLen - arrowPaddingMin - normalizedTetherOffsetValue.mainAxis : minLen - arrowLen - arrowPaddingMin - normalizedTetherOffsetValue.mainAxis;
 | ||
|       var maxOffset = isBasePlacement ? -referenceRect[len] / 2 + additive + arrowLen + arrowPaddingMax + normalizedTetherOffsetValue.mainAxis : maxLen + arrowLen + arrowPaddingMax + normalizedTetherOffsetValue.mainAxis;
 | ||
|       var arrowOffsetParent = state.elements.arrow && getOffsetParent(state.elements.arrow);
 | ||
|       var clientOffset = arrowOffsetParent ? mainAxis === 'y' ? arrowOffsetParent.clientTop || 0 : arrowOffsetParent.clientLeft || 0 : 0;
 | ||
|       var offsetModifierValue = (_offsetModifierState$ = offsetModifierState == null ? void 0 : offsetModifierState[mainAxis]) != null ? _offsetModifierState$ : 0;
 | ||
|       var tetherMin = offset + minOffset - offsetModifierValue - clientOffset;
 | ||
|       var tetherMax = offset + maxOffset - offsetModifierValue;
 | ||
|       var preventedOffset = within(tether ? min(min$1, tetherMin) : min$1, offset, tether ? max(max$1, tetherMax) : max$1);
 | ||
|       popperOffsets[mainAxis] = preventedOffset;
 | ||
|       data[mainAxis] = preventedOffset - offset;
 | ||
|     }
 | ||
| 
 | ||
|     if (checkAltAxis) {
 | ||
|       var _offsetModifierState$2;
 | ||
| 
 | ||
|       var _mainSide = mainAxis === 'x' ? top : left;
 | ||
| 
 | ||
|       var _altSide = mainAxis === 'x' ? bottom : right;
 | ||
| 
 | ||
|       var _offset = popperOffsets[altAxis];
 | ||
| 
 | ||
|       var _len = altAxis === 'y' ? 'height' : 'width';
 | ||
| 
 | ||
|       var _min = _offset + overflow[_mainSide];
 | ||
| 
 | ||
|       var _max = _offset - overflow[_altSide];
 | ||
| 
 | ||
|       var isOriginSide = [top, left].indexOf(basePlacement) !== -1;
 | ||
| 
 | ||
|       var _offsetModifierValue = (_offsetModifierState$2 = offsetModifierState == null ? void 0 : offsetModifierState[altAxis]) != null ? _offsetModifierState$2 : 0;
 | ||
| 
 | ||
|       var _tetherMin = isOriginSide ? _min : _offset - referenceRect[_len] - popperRect[_len] - _offsetModifierValue + normalizedTetherOffsetValue.altAxis;
 | ||
| 
 | ||
|       var _tetherMax = isOriginSide ? _offset + referenceRect[_len] + popperRect[_len] - _offsetModifierValue - normalizedTetherOffsetValue.altAxis : _max;
 | ||
| 
 | ||
|       var _preventedOffset = tether && isOriginSide ? withinMaxClamp(_tetherMin, _offset, _tetherMax) : within(tether ? _tetherMin : _min, _offset, tether ? _tetherMax : _max);
 | ||
| 
 | ||
|       popperOffsets[altAxis] = _preventedOffset;
 | ||
|       data[altAxis] = _preventedOffset - _offset;
 | ||
|     }
 | ||
| 
 | ||
|     state.modifiersData[name] = data;
 | ||
|   } // eslint-disable-next-line import/no-unused-modules
 | ||
| 
 | ||
| 
 | ||
|   var preventOverflow$1 = {
 | ||
|     name: 'preventOverflow',
 | ||
|     enabled: true,
 | ||
|     phase: 'main',
 | ||
|     fn: preventOverflow,
 | ||
|     requiresIfExists: ['offset']
 | ||
|   };
 | ||
| 
 | ||
|   var toPaddingObject = function toPaddingObject(padding, state) {
 | ||
|     padding = typeof padding === 'function' ? padding(Object.assign({}, state.rects, {
 | ||
|       placement: state.placement
 | ||
|     })) : padding;
 | ||
|     return mergePaddingObject(typeof padding !== 'number' ? padding : expandToHashMap(padding, basePlacements));
 | ||
|   };
 | ||
| 
 | ||
|   function arrow(_ref) {
 | ||
|     var _state$modifiersData$;
 | ||
| 
 | ||
|     var state = _ref.state,
 | ||
|         name = _ref.name,
 | ||
|         options = _ref.options;
 | ||
|     var arrowElement = state.elements.arrow;
 | ||
|     var popperOffsets = state.modifiersData.popperOffsets;
 | ||
|     var basePlacement = getBasePlacement(state.placement);
 | ||
|     var axis = getMainAxisFromPlacement(basePlacement);
 | ||
|     var isVertical = [left, right].indexOf(basePlacement) >= 0;
 | ||
|     var len = isVertical ? 'height' : 'width';
 | ||
| 
 | ||
|     if (!arrowElement || !popperOffsets) {
 | ||
|       return;
 | ||
|     }
 | ||
| 
 | ||
|     var paddingObject = toPaddingObject(options.padding, state);
 | ||
|     var arrowRect = getLayoutRect(arrowElement);
 | ||
|     var minProp = axis === 'y' ? top : left;
 | ||
|     var maxProp = axis === 'y' ? bottom : right;
 | ||
|     var endDiff = state.rects.reference[len] + state.rects.reference[axis] - popperOffsets[axis] - state.rects.popper[len];
 | ||
|     var startDiff = popperOffsets[axis] - state.rects.reference[axis];
 | ||
|     var arrowOffsetParent = getOffsetParent(arrowElement);
 | ||
|     var clientSize = arrowOffsetParent ? axis === 'y' ? arrowOffsetParent.clientHeight || 0 : arrowOffsetParent.clientWidth || 0 : 0;
 | ||
|     var centerToReference = endDiff / 2 - startDiff / 2; // Make sure the arrow doesn't overflow the popper if the center point is
 | ||
|     // outside of the popper bounds
 | ||
| 
 | ||
|     var min = paddingObject[minProp];
 | ||
|     var max = clientSize - arrowRect[len] - paddingObject[maxProp];
 | ||
|     var center = clientSize / 2 - arrowRect[len] / 2 + centerToReference;
 | ||
|     var offset = within(min, center, max); // Prevents breaking syntax highlighting...
 | ||
| 
 | ||
|     var axisProp = axis;
 | ||
|     state.modifiersData[name] = (_state$modifiersData$ = {}, _state$modifiersData$[axisProp] = offset, _state$modifiersData$.centerOffset = offset - center, _state$modifiersData$);
 | ||
|   }
 | ||
| 
 | ||
|   function effect(_ref2) {
 | ||
|     var state = _ref2.state,
 | ||
|         options = _ref2.options;
 | ||
|     var _options$element = options.element,
 | ||
|         arrowElement = _options$element === void 0 ? '[data-popper-arrow]' : _options$element;
 | ||
| 
 | ||
|     if (arrowElement == null) {
 | ||
|       return;
 | ||
|     } // CSS selector
 | ||
| 
 | ||
| 
 | ||
|     if (typeof arrowElement === 'string') {
 | ||
|       arrowElement = state.elements.popper.querySelector(arrowElement);
 | ||
| 
 | ||
|       if (!arrowElement) {
 | ||
|         return;
 | ||
|       }
 | ||
|     }
 | ||
| 
 | ||
|     {
 | ||
|       if (!isHTMLElement(arrowElement)) {
 | ||
|         console.error(['Popper: "arrow" element must be an HTMLElement (not an SVGElement).', 'To use an SVG arrow, wrap it in an HTMLElement that will be used as', 'the arrow.'].join(' '));
 | ||
|       }
 | ||
|     }
 | ||
| 
 | ||
|     if (!contains(state.elements.popper, arrowElement)) {
 | ||
|       {
 | ||
|         console.error(['Popper: "arrow" modifier\'s `element` must be a child of the popper', 'element.'].join(' '));
 | ||
|       }
 | ||
| 
 | ||
|       return;
 | ||
|     }
 | ||
| 
 | ||
|     state.elements.arrow = arrowElement;
 | ||
|   } // eslint-disable-next-line import/no-unused-modules
 | ||
| 
 | ||
| 
 | ||
|   var arrow$1 = {
 | ||
|     name: 'arrow',
 | ||
|     enabled: true,
 | ||
|     phase: 'main',
 | ||
|     fn: arrow,
 | ||
|     effect: effect,
 | ||
|     requires: ['popperOffsets'],
 | ||
|     requiresIfExists: ['preventOverflow']
 | ||
|   };
 | ||
| 
 | ||
|   function getSideOffsets(overflow, rect, preventedOffsets) {
 | ||
|     if (preventedOffsets === void 0) {
 | ||
|       preventedOffsets = {
 | ||
|         x: 0,
 | ||
|         y: 0
 | ||
|       };
 | ||
|     }
 | ||
| 
 | ||
|     return {
 | ||
|       top: overflow.top - rect.height - preventedOffsets.y,
 | ||
|       right: overflow.right - rect.width + preventedOffsets.x,
 | ||
|       bottom: overflow.bottom - rect.height + preventedOffsets.y,
 | ||
|       left: overflow.left - rect.width - preventedOffsets.x
 | ||
|     };
 | ||
|   }
 | ||
| 
 | ||
|   function isAnySideFullyClipped(overflow) {
 | ||
|     return [top, right, bottom, left].some(function (side) {
 | ||
|       return overflow[side] >= 0;
 | ||
|     });
 | ||
|   }
 | ||
| 
 | ||
|   function hide(_ref) {
 | ||
|     var state = _ref.state,
 | ||
|         name = _ref.name;
 | ||
|     var referenceRect = state.rects.reference;
 | ||
|     var popperRect = state.rects.popper;
 | ||
|     var preventedOffsets = state.modifiersData.preventOverflow;
 | ||
|     var referenceOverflow = detectOverflow(state, {
 | ||
|       elementContext: 'reference'
 | ||
|     });
 | ||
|     var popperAltOverflow = detectOverflow(state, {
 | ||
|       altBoundary: true
 | ||
|     });
 | ||
|     var referenceClippingOffsets = getSideOffsets(referenceOverflow, referenceRect);
 | ||
|     var popperEscapeOffsets = getSideOffsets(popperAltOverflow, popperRect, preventedOffsets);
 | ||
|     var isReferenceHidden = isAnySideFullyClipped(referenceClippingOffsets);
 | ||
|     var hasPopperEscaped = isAnySideFullyClipped(popperEscapeOffsets);
 | ||
|     state.modifiersData[name] = {
 | ||
|       referenceClippingOffsets: referenceClippingOffsets,
 | ||
|       popperEscapeOffsets: popperEscapeOffsets,
 | ||
|       isReferenceHidden: isReferenceHidden,
 | ||
|       hasPopperEscaped: hasPopperEscaped
 | ||
|     };
 | ||
|     state.attributes.popper = Object.assign({}, state.attributes.popper, {
 | ||
|       'data-popper-reference-hidden': isReferenceHidden,
 | ||
|       'data-popper-escaped': hasPopperEscaped
 | ||
|     });
 | ||
|   } // eslint-disable-next-line import/no-unused-modules
 | ||
| 
 | ||
| 
 | ||
|   var hide$1 = {
 | ||
|     name: 'hide',
 | ||
|     enabled: true,
 | ||
|     phase: 'main',
 | ||
|     requiresIfExists: ['preventOverflow'],
 | ||
|     fn: hide
 | ||
|   };
 | ||
| 
 | ||
|   var defaultModifiers$1 = [eventListeners, popperOffsets$1, computeStyles$1, applyStyles$1];
 | ||
|   var createPopper$1 = /*#__PURE__*/popperGenerator({
 | ||
|     defaultModifiers: defaultModifiers$1
 | ||
|   }); // eslint-disable-next-line import/no-unused-modules
 | ||
| 
 | ||
|   var defaultModifiers = [eventListeners, popperOffsets$1, computeStyles$1, applyStyles$1, offset$1, flip$1, preventOverflow$1, arrow$1, hide$1];
 | ||
|   var createPopper = /*#__PURE__*/popperGenerator({
 | ||
|     defaultModifiers: defaultModifiers
 | ||
|   }); // eslint-disable-next-line import/no-unused-modules
 | ||
| 
 | ||
|   exports.applyStyles = applyStyles$1;
 | ||
|   exports.arrow = arrow$1;
 | ||
|   exports.computeStyles = computeStyles$1;
 | ||
|   exports.createPopper = createPopper;
 | ||
|   exports.createPopperLite = createPopper$1;
 | ||
|   exports.defaultModifiers = defaultModifiers;
 | ||
|   exports.detectOverflow = detectOverflow;
 | ||
|   exports.eventListeners = eventListeners;
 | ||
|   exports.flip = flip$1;
 | ||
|   exports.hide = hide$1;
 | ||
|   exports.offset = offset$1;
 | ||
|   exports.popperGenerator = popperGenerator;
 | ||
|   exports.popperOffsets = popperOffsets$1;
 | ||
|   exports.preventOverflow = preventOverflow$1;
 | ||
| 
 | ||
|   Object.defineProperty(exports, '__esModule', { value: true });
 | ||
| 
 | ||
| })));
 | ||
| //# sourceMappingURL=popper.js.map
 |