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							693 lines
						
					
					
						
							24 KiB
						
					
					
				(function (global, factory) {
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  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@floating-ui/core')) :
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  typeof define === 'function' && define.amd ? define(['exports', '@floating-ui/core'], factory) :
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  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.FloatingUIDOM = {}, global.FloatingUICore));
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})(this, (function (exports, core) { 'use strict';
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  function getWindow(node) {
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    var _node$ownerDocument;
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    return ((_node$ownerDocument = node.ownerDocument) == null ? void 0 : _node$ownerDocument.defaultView) || window;
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  }
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  function getComputedStyle$1(element) {
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    return getWindow(element).getComputedStyle(element);
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  }
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						|
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  function getNodeName(node) {
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    return isNode(node) ? (node.nodeName || '').toLowerCase() : '';
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  }
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  let uaString;
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  function getUAString() {
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    if (uaString) {
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      return uaString;
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    }
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    const uaData = navigator.userAgentData;
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    if (uaData && Array.isArray(uaData.brands)) {
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      uaString = uaData.brands.map(item => item.brand + "/" + item.version).join(' ');
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      return uaString;
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    }
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    return navigator.userAgent;
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  }
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  function isHTMLElement(value) {
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    return value instanceof getWindow(value).HTMLElement;
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  }
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  function isElement(value) {
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    return value instanceof getWindow(value).Element;
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  }
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  function isNode(value) {
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    return value instanceof getWindow(value).Node;
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  }
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  function isShadowRoot(node) {
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    // Browsers without `ShadowRoot` support
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    if (typeof ShadowRoot === 'undefined') {
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      return false;
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    }
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    const OwnElement = getWindow(node).ShadowRoot;
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    return node instanceof OwnElement || node instanceof ShadowRoot;
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  }
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  function isOverflowElement(element) {
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    const {
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      overflow,
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      overflowX,
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      overflowY,
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      display
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    } = getComputedStyle$1(element);
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    return /auto|scroll|overlay|hidden|clip/.test(overflow + overflowY + overflowX) && !['inline', 'contents'].includes(display);
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  }
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  function isTableElement(element) {
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    return ['table', 'td', 'th'].includes(getNodeName(element));
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  }
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  function isContainingBlock(element) {
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    // TODO: Try and use feature detection here instead
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    const isFirefox = /firefox/i.test(getUAString());
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    const css = getComputedStyle$1(element);
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    const backdropFilter = css.backdropFilter || css.WebkitBackdropFilter;
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						|
    // This is non-exhaustive but covers the most common CSS properties that
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    // 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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    return css.transform !== 'none' || css.perspective !== 'none' || (backdropFilter ? backdropFilter !== 'none' : false) || isFirefox && css.willChange === 'filter' || isFirefox && (css.filter ? css.filter !== 'none' : false) || ['transform', 'perspective'].some(value => css.willChange.includes(value)) || ['paint', 'layout', 'strict', 'content'].some(
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    // TS 4.1 compat
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    value => {
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      const contain = css.contain;
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      return contain != null ? contain.includes(value) : false;
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    });
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  }
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  function isLayoutViewport() {
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    // Not Safari
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    return !/^((?!chrome|android).)*safari/i.test(getUAString());
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    // Feature detection for this fails in various ways
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    // • Always-visible scrollbar or not
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    // • Width of <html>, etc.
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    // const vV = win.visualViewport;
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    // return vV ? Math.abs(win.innerWidth / vV.scale - vV.width) < 0.5 : true;
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  }
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  function isLastTraversableNode(node) {
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    return ['html', 'body', '#document'].includes(getNodeName(node));
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  }
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  const min = Math.min;
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  const max = Math.max;
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  const round = Math.round;
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  function getCssDimensions(element) {
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    const css = getComputedStyle$1(element);
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    let width = parseFloat(css.width);
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    let height = parseFloat(css.height);
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    const offsetWidth = element.offsetWidth;
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    const offsetHeight = element.offsetHeight;
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    const shouldFallback = round(width) !== offsetWidth || round(height) !== offsetHeight;
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    if (shouldFallback) {
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      width = offsetWidth;
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      height = offsetHeight;
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    }
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    return {
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      width,
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      height,
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      fallback: shouldFallback
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    };
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  }
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  function unwrapElement(element) {
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    return !isElement(element) ? element.contextElement : element;
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  }
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  const FALLBACK_SCALE = {
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    x: 1,
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    y: 1
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  };
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  function getScale(element) {
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    const domElement = unwrapElement(element);
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    if (!isHTMLElement(domElement)) {
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      return FALLBACK_SCALE;
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    }
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    const rect = domElement.getBoundingClientRect();
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    const {
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      width,
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      height,
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      fallback
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    } = getCssDimensions(domElement);
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    let x = (fallback ? round(rect.width) : rect.width) / width;
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    let y = (fallback ? round(rect.height) : rect.height) / height;
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    // 0, NaN, or Infinity should always fallback to 1.
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    if (!x || !Number.isFinite(x)) {
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      x = 1;
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    }
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    if (!y || !Number.isFinite(y)) {
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      y = 1;
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    }
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    return {
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      x,
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      y
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    };
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  }
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  function getBoundingClientRect(element, includeScale, isFixedStrategy, offsetParent) {
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    var _win$visualViewport, _win$visualViewport2;
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    if (includeScale === void 0) {
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      includeScale = false;
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    }
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    if (isFixedStrategy === void 0) {
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      isFixedStrategy = false;
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    }
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    const clientRect = element.getBoundingClientRect();
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    const domElement = unwrapElement(element);
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    let scale = FALLBACK_SCALE;
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    if (includeScale) {
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      if (offsetParent) {
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        if (isElement(offsetParent)) {
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          scale = getScale(offsetParent);
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        }
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      } else {
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        scale = getScale(element);
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      }
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    }
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    const win = domElement ? getWindow(domElement) : window;
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    const addVisualOffsets = !isLayoutViewport() && isFixedStrategy;
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    let x = (clientRect.left + (addVisualOffsets ? ((_win$visualViewport = win.visualViewport) == null ? void 0 : _win$visualViewport.offsetLeft) || 0 : 0)) / scale.x;
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    let y = (clientRect.top + (addVisualOffsets ? ((_win$visualViewport2 = win.visualViewport) == null ? void 0 : _win$visualViewport2.offsetTop) || 0 : 0)) / scale.y;
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    let width = clientRect.width / scale.x;
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    let height = clientRect.height / scale.y;
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    if (domElement) {
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      const win = getWindow(domElement);
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      const offsetWin = offsetParent && isElement(offsetParent) ? getWindow(offsetParent) : offsetParent;
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      let currentIFrame = win.frameElement;
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      while (currentIFrame && offsetParent && offsetWin !== win) {
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        const iframeScale = getScale(currentIFrame);
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        const iframeRect = currentIFrame.getBoundingClientRect();
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        const css = getComputedStyle(currentIFrame);
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        iframeRect.x += (currentIFrame.clientLeft + parseFloat(css.paddingLeft)) * iframeScale.x;
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        iframeRect.y += (currentIFrame.clientTop + parseFloat(css.paddingTop)) * iframeScale.y;
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        x *= iframeScale.x;
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        y *= iframeScale.y;
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        width *= iframeScale.x;
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        height *= iframeScale.y;
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        x += iframeRect.x;
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        y += iframeRect.y;
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        currentIFrame = getWindow(currentIFrame).frameElement;
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      }
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    }
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    return {
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      width,
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      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,
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      y
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    };
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  }
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  function getDocumentElement(node) {
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    return ((isNode(node) ? node.ownerDocument : node.document) || window.document).documentElement;
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  }
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  function getNodeScroll(element) {
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						|
    if (isElement(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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    return {
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      scrollLeft: element.pageXOffset,
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      scrollTop: element.pageYOffset
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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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    return getBoundingClientRect(getDocumentElement(element)).left + getNodeScroll(element).scrollLeft;
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  }
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  function getRectRelativeToOffsetParent(element, offsetParent, strategy) {
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						|
    const isOffsetParentAnElement = isHTMLElement(offsetParent);
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    const documentElement = getDocumentElement(offsetParent);
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    const rect = getBoundingClientRect(element, true, strategy === 'fixed', offsetParent);
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						|
    let scroll = {
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      scrollLeft: 0,
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      scrollTop: 0
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    };
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    const offsets = {
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      x: 0,
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						|
      y: 0
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						|
    };
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						|
    if (isOffsetParentAnElement || !isOffsetParentAnElement && strategy !== 'fixed') {
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      if (getNodeName(offsetParent) !== 'body' || isOverflowElement(documentElement)) {
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        scroll = getNodeScroll(offsetParent);
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      }
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      if (isHTMLElement(offsetParent)) {
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        const offsetRect = getBoundingClientRect(offsetParent, true);
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        offsets.x = offsetRect.x + offsetParent.clientLeft;
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						|
        offsets.y = offsetRect.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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    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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  function getParentNode(node) {
 | 
						|
    if (getNodeName(node) === 'html') {
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						|
      return node;
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						|
    }
 | 
						|
    const result =
 | 
						|
    // Step into the shadow DOM of the parent of a slotted node
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						|
    node.assignedSlot ||
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						|
    // DOM Element detected
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						|
    node.parentNode || (
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    // ShadowRoot detected
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						|
    isShadowRoot(node) ? node.host : null) ||
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    // Fallback
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    getDocumentElement(node);
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    return isShadowRoot(result) ? result.host : result;
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  }
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 | 
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  function getTrueOffsetParent(element) {
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						|
    if (!isHTMLElement(element) || getComputedStyle$1(element).position === 'fixed') {
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      return null;
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						|
    }
 | 
						|
    return element.offsetParent;
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						|
  }
 | 
						|
  function getContainingBlock(element) {
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						|
    let currentNode = getParentNode(element);
 | 
						|
    while (isHTMLElement(currentNode) && !isLastTraversableNode(currentNode)) {
 | 
						|
      if (isContainingBlock(currentNode)) {
 | 
						|
        return currentNode;
 | 
						|
      } else {
 | 
						|
        currentNode = getParentNode(currentNode);
 | 
						|
      }
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						|
    }
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						|
    return null;
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						|
  }
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						|
  // Gets the closest ancestor positioned element. Handles some edge cases,
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						|
  // such as table ancestors and cross browser bugs.
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						|
  function getOffsetParent(element) {
 | 
						|
    const window = getWindow(element);
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						|
    let offsetParent = getTrueOffsetParent(element);
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						|
    while (offsetParent && isTableElement(offsetParent) && getComputedStyle$1(offsetParent).position === 'static') {
 | 
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      offsetParent = getTrueOffsetParent(offsetParent);
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    }
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						|
    if (offsetParent && (getNodeName(offsetParent) === 'html' || getNodeName(offsetParent) === 'body' && getComputedStyle$1(offsetParent).position === 'static' && !isContainingBlock(offsetParent))) {
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      return window;
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    }
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						|
    return offsetParent || getContainingBlock(element) || window;
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						|
  }
 | 
						|
 | 
						|
  function getDimensions(element) {
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						|
    return getCssDimensions(element);
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						|
  }
 | 
						|
 | 
						|
  function convertOffsetParentRelativeRectToViewportRelativeRect(_ref) {
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						|
    let {
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      rect,
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						|
      offsetParent,
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      strategy
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						|
    } = _ref;
 | 
						|
    const isOffsetParentAnElement = isHTMLElement(offsetParent);
 | 
						|
    const documentElement = getDocumentElement(offsetParent);
 | 
						|
    if (offsetParent === documentElement) {
 | 
						|
      return rect;
 | 
						|
    }
 | 
						|
    let scroll = {
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						|
      scrollLeft: 0,
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						|
      scrollTop: 0
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						|
    };
 | 
						|
    let scale = {
 | 
						|
      x: 1,
 | 
						|
      y: 1
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						|
    };
 | 
						|
    const offsets = {
 | 
						|
      x: 0,
 | 
						|
      y: 0
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						|
    };
 | 
						|
    if (isOffsetParentAnElement || !isOffsetParentAnElement && strategy !== 'fixed') {
 | 
						|
      if (getNodeName(offsetParent) !== 'body' || isOverflowElement(documentElement)) {
 | 
						|
        scroll = getNodeScroll(offsetParent);
 | 
						|
      }
 | 
						|
      if (isHTMLElement(offsetParent)) {
 | 
						|
        const offsetRect = getBoundingClientRect(offsetParent);
 | 
						|
        scale = getScale(offsetParent);
 | 
						|
        offsets.x = offsetRect.x + offsetParent.clientLeft;
 | 
						|
        offsets.y = offsetRect.y + offsetParent.clientTop;
 | 
						|
      }
 | 
						|
      // This doesn't appear to need to be negated.
 | 
						|
      // else if (documentElement) {
 | 
						|
      //   offsets.x = getWindowScrollBarX(documentElement);
 | 
						|
      // }
 | 
						|
    }
 | 
						|
 | 
						|
    return {
 | 
						|
      width: rect.width * scale.x,
 | 
						|
      height: rect.height * scale.y,
 | 
						|
      x: rect.x * scale.x - scroll.scrollLeft * scale.x + offsets.x,
 | 
						|
      y: rect.y * scale.y - scroll.scrollTop * scale.y + offsets.y
 | 
						|
    };
 | 
						|
  }
 | 
						|
 | 
						|
  function getViewportRect(element, strategy) {
 | 
						|
    const win = getWindow(element);
 | 
						|
    const html = getDocumentElement(element);
 | 
						|
    const visualViewport = win.visualViewport;
 | 
						|
    let width = html.clientWidth;
 | 
						|
    let height = html.clientHeight;
 | 
						|
    let x = 0;
 | 
						|
    let y = 0;
 | 
						|
    if (visualViewport) {
 | 
						|
      width = visualViewport.width;
 | 
						|
      height = visualViewport.height;
 | 
						|
      const layoutViewport = isLayoutViewport();
 | 
						|
      if (layoutViewport || !layoutViewport && strategy === 'fixed') {
 | 
						|
        x = visualViewport.offsetLeft;
 | 
						|
        y = visualViewport.offsetTop;
 | 
						|
      }
 | 
						|
    }
 | 
						|
    return {
 | 
						|
      width,
 | 
						|
      height,
 | 
						|
      x,
 | 
						|
      y
 | 
						|
    };
 | 
						|
  }
 | 
						|
 | 
						|
  // Gets the entire size of the scrollable document area, even extending outside
 | 
						|
  // of the `<html>` and `<body>` rect bounds if horizontally scrollable
 | 
						|
  function getDocumentRect(element) {
 | 
						|
    var _element$ownerDocumen;
 | 
						|
    const html = getDocumentElement(element);
 | 
						|
    const scroll = getNodeScroll(element);
 | 
						|
    const body = (_element$ownerDocumen = element.ownerDocument) == null ? void 0 : _element$ownerDocumen.body;
 | 
						|
    const width = max(html.scrollWidth, html.clientWidth, body ? body.scrollWidth : 0, body ? body.clientWidth : 0);
 | 
						|
    const height = max(html.scrollHeight, html.clientHeight, body ? body.scrollHeight : 0, body ? body.clientHeight : 0);
 | 
						|
    let x = -scroll.scrollLeft + getWindowScrollBarX(element);
 | 
						|
    const y = -scroll.scrollTop;
 | 
						|
    if (getComputedStyle$1(body || html).direction === 'rtl') {
 | 
						|
      x += max(html.clientWidth, body ? body.clientWidth : 0) - width;
 | 
						|
    }
 | 
						|
    return {
 | 
						|
      width,
 | 
						|
      height,
 | 
						|
      x,
 | 
						|
      y
 | 
						|
    };
 | 
						|
  }
 | 
						|
 | 
						|
  function getNearestOverflowAncestor(node) {
 | 
						|
    const parentNode = getParentNode(node);
 | 
						|
    if (isLastTraversableNode(parentNode)) {
 | 
						|
      // @ts-ignore assume body is always available
 | 
						|
      return node.ownerDocument.body;
 | 
						|
    }
 | 
						|
    if (isHTMLElement(parentNode) && isOverflowElement(parentNode)) {
 | 
						|
      return parentNode;
 | 
						|
    }
 | 
						|
    return getNearestOverflowAncestor(parentNode);
 | 
						|
  }
 | 
						|
 | 
						|
  function getOverflowAncestors(node, list) {
 | 
						|
    var _node$ownerDocument;
 | 
						|
    if (list === void 0) {
 | 
						|
      list = [];
 | 
						|
    }
 | 
						|
    const scrollableAncestor = getNearestOverflowAncestor(node);
 | 
						|
    const isBody = scrollableAncestor === ((_node$ownerDocument = node.ownerDocument) == null ? void 0 : _node$ownerDocument.body);
 | 
						|
    const win = getWindow(scrollableAncestor);
 | 
						|
    if (isBody) {
 | 
						|
      return list.concat(win, win.visualViewport || [], isOverflowElement(scrollableAncestor) ? scrollableAncestor : []);
 | 
						|
    }
 | 
						|
    return list.concat(scrollableAncestor, getOverflowAncestors(scrollableAncestor));
 | 
						|
  }
 | 
						|
 | 
						|
  // Returns the inner client rect, subtracting scrollbars if present
 | 
						|
  function getInnerBoundingClientRect(element, strategy) {
 | 
						|
    const clientRect = getBoundingClientRect(element, true, strategy === 'fixed');
 | 
						|
    const top = clientRect.top + element.clientTop;
 | 
						|
    const left = clientRect.left + element.clientLeft;
 | 
						|
    const scale = isHTMLElement(element) ? getScale(element) : {
 | 
						|
      x: 1,
 | 
						|
      y: 1
 | 
						|
    };
 | 
						|
    const width = element.clientWidth * scale.x;
 | 
						|
    const height = element.clientHeight * scale.y;
 | 
						|
    const x = left * scale.x;
 | 
						|
    const y = top * scale.y;
 | 
						|
    return {
 | 
						|
      top: y,
 | 
						|
      left: x,
 | 
						|
      right: x + width,
 | 
						|
      bottom: y + height,
 | 
						|
      x,
 | 
						|
      y,
 | 
						|
      width,
 | 
						|
      height
 | 
						|
    };
 | 
						|
  }
 | 
						|
  function getClientRectFromClippingAncestor(element, clippingAncestor, strategy) {
 | 
						|
    if (clippingAncestor === 'viewport') {
 | 
						|
      return core.rectToClientRect(getViewportRect(element, strategy));
 | 
						|
    }
 | 
						|
    if (isElement(clippingAncestor)) {
 | 
						|
      return getInnerBoundingClientRect(clippingAncestor, strategy);
 | 
						|
    }
 | 
						|
    return core.rectToClientRect(getDocumentRect(getDocumentElement(element)));
 | 
						|
  }
 | 
						|
 | 
						|
  // A "clipping ancestor" is an `overflow` element with the characteristic of
 | 
						|
  // clipping (or hiding) child elements. This returns all clipping ancestors
 | 
						|
  // of the given element up the tree.
 | 
						|
  function getClippingElementAncestors(element, cache) {
 | 
						|
    const cachedResult = cache.get(element);
 | 
						|
    if (cachedResult) {
 | 
						|
      return cachedResult;
 | 
						|
    }
 | 
						|
    let result = getOverflowAncestors(element).filter(el => isElement(el) && getNodeName(el) !== 'body');
 | 
						|
    let currentContainingBlockComputedStyle = null;
 | 
						|
    const elementIsFixed = getComputedStyle$1(element).position === 'fixed';
 | 
						|
    let currentNode = elementIsFixed ? getParentNode(element) : element;
 | 
						|
 | 
						|
    // https://developer.mozilla.org/en-US/docs/Web/CSS/Containing_block#identifying_the_containing_block
 | 
						|
    while (isElement(currentNode) && !isLastTraversableNode(currentNode)) {
 | 
						|
      const computedStyle = getComputedStyle$1(currentNode);
 | 
						|
      const containingBlock = isContainingBlock(currentNode);
 | 
						|
      const shouldDropCurrentNode = elementIsFixed ? !containingBlock && !currentContainingBlockComputedStyle : !containingBlock && computedStyle.position === 'static' && !!currentContainingBlockComputedStyle && ['absolute', 'fixed'].includes(currentContainingBlockComputedStyle.position);
 | 
						|
      if (shouldDropCurrentNode) {
 | 
						|
        // Drop non-containing blocks
 | 
						|
        result = result.filter(ancestor => ancestor !== currentNode);
 | 
						|
      } else {
 | 
						|
        // Record last containing block for next iteration
 | 
						|
        currentContainingBlockComputedStyle = computedStyle;
 | 
						|
      }
 | 
						|
      currentNode = getParentNode(currentNode);
 | 
						|
    }
 | 
						|
    cache.set(element, result);
 | 
						|
    return result;
 | 
						|
  }
 | 
						|
 | 
						|
  // Gets the maximum area that the element is visible in due to any number of
 | 
						|
  // clipping ancestors
 | 
						|
  function getClippingRect(_ref) {
 | 
						|
    let {
 | 
						|
      element,
 | 
						|
      boundary,
 | 
						|
      rootBoundary,
 | 
						|
      strategy
 | 
						|
    } = _ref;
 | 
						|
    const elementClippingAncestors = boundary === 'clippingAncestors' ? getClippingElementAncestors(element, this._c) : [].concat(boundary);
 | 
						|
    const clippingAncestors = [...elementClippingAncestors, rootBoundary];
 | 
						|
    const firstClippingAncestor = clippingAncestors[0];
 | 
						|
    const clippingRect = clippingAncestors.reduce((accRect, clippingAncestor) => {
 | 
						|
      const rect = getClientRectFromClippingAncestor(element, clippingAncestor, 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;
 | 
						|
    }, getClientRectFromClippingAncestor(element, firstClippingAncestor, strategy));
 | 
						|
    return {
 | 
						|
      width: clippingRect.right - clippingRect.left,
 | 
						|
      height: clippingRect.bottom - clippingRect.top,
 | 
						|
      x: clippingRect.left,
 | 
						|
      y: clippingRect.top
 | 
						|
    };
 | 
						|
  }
 | 
						|
 | 
						|
  const platform = {
 | 
						|
    getClippingRect,
 | 
						|
    convertOffsetParentRelativeRectToViewportRelativeRect,
 | 
						|
    isElement,
 | 
						|
    getDimensions,
 | 
						|
    getOffsetParent,
 | 
						|
    getDocumentElement,
 | 
						|
    getScale,
 | 
						|
    async getElementRects(_ref) {
 | 
						|
      let {
 | 
						|
        reference,
 | 
						|
        floating,
 | 
						|
        strategy
 | 
						|
      } = _ref;
 | 
						|
      const getOffsetParentFn = this.getOffsetParent || getOffsetParent;
 | 
						|
      const getDimensionsFn = this.getDimensions;
 | 
						|
      return {
 | 
						|
        reference: getRectRelativeToOffsetParent(reference, await getOffsetParentFn(floating), strategy),
 | 
						|
        floating: {
 | 
						|
          x: 0,
 | 
						|
          y: 0,
 | 
						|
          ...(await getDimensionsFn(floating))
 | 
						|
        }
 | 
						|
      };
 | 
						|
    },
 | 
						|
    getClientRects: element => Array.from(element.getClientRects()),
 | 
						|
    isRTL: element => getComputedStyle$1(element).direction === 'rtl'
 | 
						|
  };
 | 
						|
 | 
						|
  /**
 | 
						|
   * Automatically updates the position of the floating element when necessary.
 | 
						|
   * @see https://floating-ui.com/docs/autoUpdate
 | 
						|
   */
 | 
						|
  function autoUpdate(reference, floating, update, options) {
 | 
						|
    if (options === void 0) {
 | 
						|
      options = {};
 | 
						|
    }
 | 
						|
    const {
 | 
						|
      ancestorScroll: _ancestorScroll = true,
 | 
						|
      ancestorResize = true,
 | 
						|
      elementResize = true,
 | 
						|
      animationFrame = false
 | 
						|
    } = options;
 | 
						|
    const ancestorScroll = _ancestorScroll && !animationFrame;
 | 
						|
    const ancestors = ancestorScroll || ancestorResize ? [...(isElement(reference) ? getOverflowAncestors(reference) : reference.contextElement ? getOverflowAncestors(reference.contextElement) : []), ...getOverflowAncestors(floating)] : [];
 | 
						|
    ancestors.forEach(ancestor => {
 | 
						|
      ancestorScroll && ancestor.addEventListener('scroll', update, {
 | 
						|
        passive: true
 | 
						|
      });
 | 
						|
      ancestorResize && ancestor.addEventListener('resize', update);
 | 
						|
    });
 | 
						|
    let observer = null;
 | 
						|
    if (elementResize) {
 | 
						|
      let initialUpdate = true;
 | 
						|
      observer = new ResizeObserver(() => {
 | 
						|
        if (!initialUpdate) {
 | 
						|
          update();
 | 
						|
        }
 | 
						|
        initialUpdate = false;
 | 
						|
      });
 | 
						|
      isElement(reference) && !animationFrame && observer.observe(reference);
 | 
						|
      if (!isElement(reference) && reference.contextElement && !animationFrame) {
 | 
						|
        observer.observe(reference.contextElement);
 | 
						|
      }
 | 
						|
      observer.observe(floating);
 | 
						|
    }
 | 
						|
    let frameId;
 | 
						|
    let prevRefRect = animationFrame ? getBoundingClientRect(reference) : null;
 | 
						|
    if (animationFrame) {
 | 
						|
      frameLoop();
 | 
						|
    }
 | 
						|
    function frameLoop() {
 | 
						|
      const nextRefRect = getBoundingClientRect(reference);
 | 
						|
      if (prevRefRect && (nextRefRect.x !== prevRefRect.x || nextRefRect.y !== prevRefRect.y || nextRefRect.width !== prevRefRect.width || nextRefRect.height !== prevRefRect.height)) {
 | 
						|
        update();
 | 
						|
      }
 | 
						|
      prevRefRect = nextRefRect;
 | 
						|
      frameId = requestAnimationFrame(frameLoop);
 | 
						|
    }
 | 
						|
    update();
 | 
						|
    return () => {
 | 
						|
      var _observer;
 | 
						|
      ancestors.forEach(ancestor => {
 | 
						|
        ancestorScroll && ancestor.removeEventListener('scroll', update);
 | 
						|
        ancestorResize && ancestor.removeEventListener('resize', update);
 | 
						|
      });
 | 
						|
      (_observer = observer) == null ? void 0 : _observer.disconnect();
 | 
						|
      observer = null;
 | 
						|
      if (animationFrame) {
 | 
						|
        cancelAnimationFrame(frameId);
 | 
						|
      }
 | 
						|
    };
 | 
						|
  }
 | 
						|
 | 
						|
  /**
 | 
						|
   * Computes the `x` and `y` coordinates that will place the floating element
 | 
						|
   * next to a reference element when it is given a certain CSS positioning
 | 
						|
   * strategy.
 | 
						|
   */
 | 
						|
  const computePosition = (reference, floating, options) => {
 | 
						|
    // This caches the expensive `getClippingElementAncestors` function so that
 | 
						|
    // multiple lifecycle resets re-use the same result. It only lives for a
 | 
						|
    // single call. If other functions become expensive, we can add them as well.
 | 
						|
    const cache = new Map();
 | 
						|
    const mergedOptions = {
 | 
						|
      platform,
 | 
						|
      ...options
 | 
						|
    };
 | 
						|
    const platformWithCache = {
 | 
						|
      ...mergedOptions.platform,
 | 
						|
      _c: cache
 | 
						|
    };
 | 
						|
    return core.computePosition(reference, floating, {
 | 
						|
      ...mergedOptions,
 | 
						|
      platform: platformWithCache
 | 
						|
    });
 | 
						|
  };
 | 
						|
 | 
						|
  Object.defineProperty(exports, 'arrow', {
 | 
						|
    enumerable: true,
 | 
						|
    get: function () { return core.arrow; }
 | 
						|
  });
 | 
						|
  Object.defineProperty(exports, 'autoPlacement', {
 | 
						|
    enumerable: true,
 | 
						|
    get: function () { return core.autoPlacement; }
 | 
						|
  });
 | 
						|
  Object.defineProperty(exports, 'detectOverflow', {
 | 
						|
    enumerable: true,
 | 
						|
    get: function () { return core.detectOverflow; }
 | 
						|
  });
 | 
						|
  Object.defineProperty(exports, 'flip', {
 | 
						|
    enumerable: true,
 | 
						|
    get: function () { return core.flip; }
 | 
						|
  });
 | 
						|
  Object.defineProperty(exports, 'hide', {
 | 
						|
    enumerable: true,
 | 
						|
    get: function () { return core.hide; }
 | 
						|
  });
 | 
						|
  Object.defineProperty(exports, 'inline', {
 | 
						|
    enumerable: true,
 | 
						|
    get: function () { return core.inline; }
 | 
						|
  });
 | 
						|
  Object.defineProperty(exports, 'limitShift', {
 | 
						|
    enumerable: true,
 | 
						|
    get: function () { return core.limitShift; }
 | 
						|
  });
 | 
						|
  Object.defineProperty(exports, 'offset', {
 | 
						|
    enumerable: true,
 | 
						|
    get: function () { return core.offset; }
 | 
						|
  });
 | 
						|
  Object.defineProperty(exports, 'shift', {
 | 
						|
    enumerable: true,
 | 
						|
    get: function () { return core.shift; }
 | 
						|
  });
 | 
						|
  Object.defineProperty(exports, 'size', {
 | 
						|
    enumerable: true,
 | 
						|
    get: function () { return core.size; }
 | 
						|
  });
 | 
						|
  exports.autoUpdate = autoUpdate;
 | 
						|
  exports.computePosition = computePosition;
 | 
						|
  exports.getOverflowAncestors = getOverflowAncestors;
 | 
						|
  exports.platform = platform;
 | 
						|
 | 
						|
  Object.defineProperty(exports, '__esModule', { value: true });
 | 
						|
 | 
						|
}));
 |