测试

frontend/node_modules/@floating-ui/dom/dist/floating-ui.dom.esm.js

@@ -0,0 +1,777 @@
+import { rectToClientRect, arrow as arrow$1, autoPlacement as autoPlacement$1, detectOverflow as detectOverflow$1, flip as flip$1, hide as hide$1, inline as inline$1, limitShift as limitShift$1, offset as offset$1, shift as shift$1, size as size$1, computePosition as computePosition$1 } from '@floating-ui/core';
+import { round, createCoords, max, min, floor } from '@floating-ui/utils';
+import { getComputedStyle as getComputedStyle$1, isHTMLElement, isElement, getWindow, isWebKit, getFrameElement, getNodeScroll, getDocumentElement, isTopLayer, getNodeName, isOverflowElement, getOverflowAncestors, getParentNode, isLastTraversableNode, isContainingBlock, isTableElement, getContainingBlock } from '@floating-ui/utils/dom';
+export { getOverflowAncestors } from '@floating-ui/utils/dom';
+
+function getCssDimensions(element) {
+  const css = getComputedStyle$1(element);
+  // In testing environments, the `width` and `height` properties are empty
+  // strings for SVG elements, returning NaN. Fallback to `0` in this case.
+  let width = parseFloat(css.width) || 0;
+  let height = parseFloat(css.height) || 0;
+  const hasOffset = isHTMLElement(element);
+  const offsetWidth = hasOffset ? element.offsetWidth : width;
+  const offsetHeight = hasOffset ? element.offsetHeight : height;
+  const shouldFallback = round(width) !== offsetWidth || round(height) !== offsetHeight;
+  if (shouldFallback) {
+    width = offsetWidth;
+    height = offsetHeight;
+  }
+  return {
+    width,
+    height,
+    $: shouldFallback
+  };
+}
+
+function unwrapElement(element) {
+  return !isElement(element) ? element.contextElement : element;
+}
+
+function getScale(element) {
+  const domElement = unwrapElement(element);
+  if (!isHTMLElement(domElement)) {
+    return createCoords(1);
+  }
+  const rect = domElement.getBoundingClientRect();
+  const {
+    width,
+    height,
+    $
+  } = getCssDimensions(domElement);
+  let x = ($ ? round(rect.width) : rect.width) / width;
+  let y = ($ ? round(rect.height) : rect.height) / height;
+
+  // 0, NaN, or Infinity should always fallback to 1.
+
+  if (!x || !Number.isFinite(x)) {
+    x = 1;
+  }
+  if (!y || !Number.isFinite(y)) {
+    y = 1;
+  }
+  return {
+    x,
+    y
+  };
+}
+
+const noOffsets = /*#__PURE__*/createCoords(0);
+function getVisualOffsets(element) {
+  const win = getWindow(element);
+  if (!isWebKit() || !win.visualViewport) {
+    return noOffsets;
+  }
+  return {
+    x: win.visualViewport.offsetLeft,
+    y: win.visualViewport.offsetTop
+  };
+}
+function shouldAddVisualOffsets(element, isFixed, floatingOffsetParent) {
+  if (isFixed === void 0) {
+    isFixed = false;
+  }
+  if (!floatingOffsetParent || isFixed && floatingOffsetParent !== getWindow(element)) {
+    return false;
+  }
+  return isFixed;
+}
+
+function getBoundingClientRect(element, includeScale, isFixedStrategy, offsetParent) {
+  if (includeScale === void 0) {
+    includeScale = false;
+  }
+  if (isFixedStrategy === void 0) {
+    isFixedStrategy = false;
+  }
+  const clientRect = element.getBoundingClientRect();
+  const domElement = unwrapElement(element);
+  let scale = createCoords(1);
+  if (includeScale) {
+    if (offsetParent) {
+      if (isElement(offsetParent)) {
+        scale = getScale(offsetParent);
+      }
+    } else {
+      scale = getScale(element);
+    }
+  }
+  const visualOffsets = shouldAddVisualOffsets(domElement, isFixedStrategy, offsetParent) ? getVisualOffsets(domElement) : createCoords(0);
+  let x = (clientRect.left + visualOffsets.x) / scale.x;
+  let y = (clientRect.top + visualOffsets.y) / scale.y;
+  let width = clientRect.width / scale.x;
+  let height = clientRect.height / scale.y;
+  if (domElement) {
+    const win = getWindow(domElement);
+    const offsetWin = offsetParent && isElement(offsetParent) ? getWindow(offsetParent) : offsetParent;
+    let currentWin = win;
+    let currentIFrame = getFrameElement(currentWin);
+    while (currentIFrame && offsetParent && offsetWin !== currentWin) {
+      const iframeScale = getScale(currentIFrame);
+      const iframeRect = currentIFrame.getBoundingClientRect();
+      const css = getComputedStyle$1(currentIFrame);
+      const left = iframeRect.left + (currentIFrame.clientLeft + parseFloat(css.paddingLeft)) * iframeScale.x;
+      const top = iframeRect.top + (currentIFrame.clientTop + parseFloat(css.paddingTop)) * iframeScale.y;
+      x *= iframeScale.x;
+      y *= iframeScale.y;
+      width *= iframeScale.x;
+      height *= iframeScale.y;
+      x += left;
+      y += top;
+      currentWin = getWindow(currentIFrame);
+      currentIFrame = getFrameElement(currentWin);
+    }
+  }
+  return rectToClientRect({
+    width,
+    height,
+    x,
+    y
+  });
+}
+
+// If <html> has a CSS width greater than the viewport, then this will be
+// incorrect for RTL.
+function getWindowScrollBarX(element, rect) {
+  const leftScroll = getNodeScroll(element).scrollLeft;
+  if (!rect) {
+    return getBoundingClientRect(getDocumentElement(element)).left + leftScroll;
+  }
+  return rect.left + leftScroll;
+}
+
+function getHTMLOffset(documentElement, scroll) {
+  const htmlRect = documentElement.getBoundingClientRect();
+  const x = htmlRect.left + scroll.scrollLeft - getWindowScrollBarX(documentElement, htmlRect);
+  const y = htmlRect.top + scroll.scrollTop;
+  return {
+    x,
+    y
+  };
+}
+
+function convertOffsetParentRelativeRectToViewportRelativeRect(_ref) {
+  let {
+    elements,
+    rect,
+    offsetParent,
+    strategy
+  } = _ref;
+  const isFixed = strategy === 'fixed';
+  const documentElement = getDocumentElement(offsetParent);
+  const topLayer = elements ? isTopLayer(elements.floating) : false;
+  if (offsetParent === documentElement || topLayer && isFixed) {
+    return rect;
+  }
+  let scroll = {
+    scrollLeft: 0,
+    scrollTop: 0
+  };
+  let scale = createCoords(1);
+  const offsets = createCoords(0);
+  const isOffsetParentAnElement = isHTMLElement(offsetParent);
+  if (isOffsetParentAnElement || !isOffsetParentAnElement && !isFixed) {
+    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;
+    }
+  }
+  const htmlOffset = documentElement && !isOffsetParentAnElement && !isFixed ? getHTMLOffset(documentElement, scroll) : createCoords(0);
+  return {
+    width: rect.width * scale.x,
+    height: rect.height * scale.y,
+    x: rect.x * scale.x - scroll.scrollLeft * scale.x + offsets.x + htmlOffset.x,
+    y: rect.y * scale.y - scroll.scrollTop * scale.y + offsets.y + htmlOffset.y
+  };
+}
+
+function getClientRects(element) {
+  return Array.from(element.getClientRects());
+}
+
+// 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) {
+  const html = getDocumentElement(element);
+  const scroll = getNodeScroll(element);
+  const body = element.ownerDocument.body;
+  const width = max(html.scrollWidth, html.clientWidth, body.scrollWidth, body.clientWidth);
+  const height = max(html.scrollHeight, html.clientHeight, body.scrollHeight, body.clientHeight);
+  let x = -scroll.scrollLeft + getWindowScrollBarX(element);
+  const y = -scroll.scrollTop;
+  if (getComputedStyle$1(body).direction === 'rtl') {
+    x += max(html.clientWidth, body.clientWidth) - width;
+  }
+  return {
+    width,
+    height,
+    x,
+    y
+  };
+}
+
+// Safety check: ensure the scrollbar space is reasonable in case this
+// calculation is affected by unusual styles.
+// Most scrollbars leave 15-18px of space.
+const SCROLLBAR_MAX = 25;
+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 visualViewportBased = isWebKit();
+    if (!visualViewportBased || visualViewportBased && strategy === 'fixed') {
+      x = visualViewport.offsetLeft;
+      y = visualViewport.offsetTop;
+    }
+  }
+  const windowScrollbarX = getWindowScrollBarX(html);
+  // <html> `overflow: hidden` + `scrollbar-gutter: stable` reduces the
+  // visual width of the <html> but this is not considered in the size
+  // of `html.clientWidth`.
+  if (windowScrollbarX <= 0) {
+    const doc = html.ownerDocument;
+    const body = doc.body;
+    const bodyStyles = getComputedStyle(body);
+    const bodyMarginInline = doc.compatMode === 'CSS1Compat' ? parseFloat(bodyStyles.marginLeft) + parseFloat(bodyStyles.marginRight) || 0 : 0;
+    const clippingStableScrollbarWidth = Math.abs(html.clientWidth - body.clientWidth - bodyMarginInline);
+    if (clippingStableScrollbarWidth <= SCROLLBAR_MAX) {
+      width -= clippingStableScrollbarWidth;
+    }
+  } else if (windowScrollbarX <= SCROLLBAR_MAX) {
+    // If the <body> scrollbar is on the left, the width needs to be extended
+    // by the scrollbar amount so there isn't extra space on the right.
+    width += windowScrollbarX;
+  }
+  return {
+    width,
+    height,
+    x,
+    y
+  };
+}
+
+const absoluteOrFixed = /*#__PURE__*/new Set(['absolute', 'fixed']);
+// 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) : createCoords(1);
+  const width = element.clientWidth * scale.x;
+  const height = element.clientHeight * scale.y;
+  const x = left * scale.x;
+  const y = top * scale.y;
+  return {
+    width,
+    height,
+    x,
+    y
+  };
+}
+function getClientRectFromClippingAncestor(element, clippingAncestor, strategy) {
+  let rect;
+  if (clippingAncestor === 'viewport') {
+    rect = getViewportRect(element, strategy);
+  } else if (clippingAncestor === 'document') {
+    rect = getDocumentRect(getDocumentElement(element));
+  } else if (isElement(clippingAncestor)) {
+    rect = getInnerBoundingClientRect(clippingAncestor, strategy);
+  } else {
+    const visualOffsets = getVisualOffsets(element);
+    rect = {
+      x: clippingAncestor.x - visualOffsets.x,
+      y: clippingAncestor.y - visualOffsets.y,
+      width: clippingAncestor.width,
+      height: clippingAncestor.height
+    };
+  }
+  return rectToClientRect(rect);
+}
+function hasFixedPositionAncestor(element, stopNode) {
+  const parentNode = getParentNode(element);
+  if (parentNode === stopNode || !isElement(parentNode) || isLastTraversableNode(parentNode)) {
+    return false;
+  }
+  return getComputedStyle$1(parentNode).position === 'fixed' || hasFixedPositionAncestor(parentNode, stopNode);
+}
+
+// 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, [], false).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 currentNodeIsContaining = isContainingBlock(currentNode);
+    if (!currentNodeIsContaining && computedStyle.position === 'fixed') {
+      currentContainingBlockComputedStyle = null;
+    }
+    const shouldDropCurrentNode = elementIsFixed ? !currentNodeIsContaining && !currentContainingBlockComputedStyle : !currentNodeIsContaining && computedStyle.position === 'static' && !!currentContainingBlockComputedStyle && absoluteOrFixed.has(currentContainingBlockComputedStyle.position) || isOverflowElement(currentNode) && !currentNodeIsContaining && hasFixedPositionAncestor(element, currentNode);
+    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' ? isTopLayer(element) ? [] : 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
+  };
+}
+
+function getDimensions(element) {
+  const {
+    width,
+    height
+  } = getCssDimensions(element);
+  return {
+    width,
+    height
+  };
+}
+
+function getRectRelativeToOffsetParent(element, offsetParent, strategy) {
+  const isOffsetParentAnElement = isHTMLElement(offsetParent);
+  const documentElement = getDocumentElement(offsetParent);
+  const isFixed = strategy === 'fixed';
+  const rect = getBoundingClientRect(element, true, isFixed, offsetParent);
+  let scroll = {
+    scrollLeft: 0,
+    scrollTop: 0
+  };
+  const offsets = createCoords(0);
+
+  // If the <body> scrollbar appears on the left (e.g. RTL systems). Use
+  // Firefox with layout.scrollbar.side = 3 in about:config to test this.
+  function setLeftRTLScrollbarOffset() {
+    offsets.x = getWindowScrollBarX(documentElement);
+  }
+  if (isOffsetParentAnElement || !isOffsetParentAnElement && !isFixed) {
+    if (getNodeName(offsetParent) !== 'body' || isOverflowElement(documentElement)) {
+      scroll = getNodeScroll(offsetParent);
+    }
+    if (isOffsetParentAnElement) {
+      const offsetRect = getBoundingClientRect(offsetParent, true, isFixed, offsetParent);
+      offsets.x = offsetRect.x + offsetParent.clientLeft;
+      offsets.y = offsetRect.y + offsetParent.clientTop;
+    } else if (documentElement) {
+      setLeftRTLScrollbarOffset();
+    }
+  }
+  if (isFixed && !isOffsetParentAnElement && documentElement) {
+    setLeftRTLScrollbarOffset();
+  }
+  const htmlOffset = documentElement && !isOffsetParentAnElement && !isFixed ? getHTMLOffset(documentElement, scroll) : createCoords(0);
+  const x = rect.left + scroll.scrollLeft - offsets.x - htmlOffset.x;
+  const y = rect.top + scroll.scrollTop - offsets.y - htmlOffset.y;
+  return {
+    x,
+    y,
+    width: rect.width,
+    height: rect.height
+  };
+}
+
+function isStaticPositioned(element) {
+  return getComputedStyle$1(element).position === 'static';
+}
+
+function getTrueOffsetParent(element, polyfill) {
+  if (!isHTMLElement(element) || getComputedStyle$1(element).position === 'fixed') {
+    return null;
+  }
+  if (polyfill) {
+    return polyfill(element);
+  }
+  let rawOffsetParent = element.offsetParent;
+
+  // Firefox returns the <html> element as the offsetParent if it's non-static,
+  // while Chrome and Safari return the <body> element. The <body> element must
+  // be used to perform the correct calculations even if the <html> element is
+  // non-static.
+  if (getDocumentElement(element) === rawOffsetParent) {
+    rawOffsetParent = rawOffsetParent.ownerDocument.body;
+  }
+  return rawOffsetParent;
+}
+
+// Gets the closest ancestor positioned element. Handles some edge cases,
+// such as table ancestors and cross browser bugs.
+function getOffsetParent(element, polyfill) {
+  const win = getWindow(element);
+  if (isTopLayer(element)) {
+    return win;
+  }
+  if (!isHTMLElement(element)) {
+    let svgOffsetParent = getParentNode(element);
+    while (svgOffsetParent && !isLastTraversableNode(svgOffsetParent)) {
+      if (isElement(svgOffsetParent) && !isStaticPositioned(svgOffsetParent)) {
+        return svgOffsetParent;
+      }
+      svgOffsetParent = getParentNode(svgOffsetParent);
+    }
+    return win;
+  }
+  let offsetParent = getTrueOffsetParent(element, polyfill);
+  while (offsetParent && isTableElement(offsetParent) && isStaticPositioned(offsetParent)) {
+    offsetParent = getTrueOffsetParent(offsetParent, polyfill);
+  }
+  if (offsetParent && isLastTraversableNode(offsetParent) && isStaticPositioned(offsetParent) && !isContainingBlock(offsetParent)) {
+    return win;
+  }
+  return offsetParent || getContainingBlock(element) || win;
+}
+
+const getElementRects = async function (data) {
+  const getOffsetParentFn = this.getOffsetParent || getOffsetParent;
+  const getDimensionsFn = this.getDimensions;
+  const floatingDimensions = await getDimensionsFn(data.floating);
+  return {
+    reference: getRectRelativeToOffsetParent(data.reference, await getOffsetParentFn(data.floating), data.strategy),
+    floating: {
+      x: 0,
+      y: 0,
+      width: floatingDimensions.width,
+      height: floatingDimensions.height
+    }
+  };
+};
+
+function isRTL(element) {
+  return getComputedStyle$1(element).direction === 'rtl';
+}
+
+const platform = {
+  convertOffsetParentRelativeRectToViewportRelativeRect,
+  getDocumentElement,
+  getClippingRect,
+  getOffsetParent,
+  getElementRects,
+  getClientRects,
+  getDimensions,
+  getScale,
+  isElement,
+  isRTL
+};
+
+function rectsAreEqual(a, b) {
+  return a.x === b.x && a.y === b.y && a.width === b.width && a.height === b.height;
+}
+
+// https://samthor.au/2021/observing-dom/
+function observeMove(element, onMove) {
+  let io = null;
+  let timeoutId;
+  const root = getDocumentElement(element);
+  function cleanup() {
+    var _io;
+    clearTimeout(timeoutId);
+    (_io = io) == null || _io.disconnect();
+    io = null;
+  }
+  function refresh(skip, threshold) {
+    if (skip === void 0) {
+      skip = false;
+    }
+    if (threshold === void 0) {
+      threshold = 1;
+    }
+    cleanup();
+    const elementRectForRootMargin = element.getBoundingClientRect();
+    const {
+      left,
+      top,
+      width,
+      height
+    } = elementRectForRootMargin;
+    if (!skip) {
+      onMove();
+    }
+    if (!width || !height) {
+      return;
+    }
+    const insetTop = floor(top);
+    const insetRight = floor(root.clientWidth - (left + width));
+    const insetBottom = floor(root.clientHeight - (top + height));
+    const insetLeft = floor(left);
+    const rootMargin = -insetTop + "px " + -insetRight + "px " + -insetBottom + "px " + -insetLeft + "px";
+    const options = {
+      rootMargin,
+      threshold: max(0, min(1, threshold)) || 1
+    };
+    let isFirstUpdate = true;
+    function handleObserve(entries) {
+      const ratio = entries[0].intersectionRatio;
+      if (ratio !== threshold) {
+        if (!isFirstUpdate) {
+          return refresh();
+        }
+        if (!ratio) {
+          // If the reference is clipped, the ratio is 0. Throttle the refresh
+          // to prevent an infinite loop of updates.
+          timeoutId = setTimeout(() => {
+            refresh(false, 1e-7);
+          }, 1000);
+        } else {
+          refresh(false, ratio);
+        }
+      }
+      if (ratio === 1 && !rectsAreEqual(elementRectForRootMargin, element.getBoundingClientRect())) {
+        // It's possible that even though the ratio is reported as 1, the
+        // element is not actually fully within the IntersectionObserver's root
+        // area anymore. This can happen under performance constraints. This may
+        // be a bug in the browser's IntersectionObserver implementation. To
+        // work around this, we compare the element's bounding rect now with
+        // what it was at the time we created the IntersectionObserver. If they
+        // are not equal then the element moved, so we refresh.
+        refresh();
+      }
+      isFirstUpdate = false;
+    }
+
+    // Older browsers don't support a `document` as the root and will throw an
+    // error.
+    try {
+      io = new IntersectionObserver(handleObserve, {
+        ...options,
+        // Handle <iframe>s
+        root: root.ownerDocument
+      });
+    } catch (_e) {
+      io = new IntersectionObserver(handleObserve, options);
+    }
+    io.observe(element);
+  }
+  refresh(true);
+  return cleanup;
+}
+
+/**
+ * Automatically updates the position of the floating element when necessary.
+ * Should only be called when the floating element is mounted on the DOM or
+ * visible on the screen.
+ * @returns cleanup function that should be invoked when the floating element is
+ * removed from the DOM or hidden from the screen.
+ * @see https://floating-ui.com/docs/autoUpdate
+ */
+function autoUpdate(reference, floating, update, options) {
+  if (options === void 0) {
+    options = {};
+  }
+  const {
+    ancestorScroll = true,
+    ancestorResize = true,
+    elementResize = typeof ResizeObserver === 'function',
+    layoutShift = typeof IntersectionObserver === 'function',
+    animationFrame = false
+  } = options;
+  const referenceEl = unwrapElement(reference);
+  const ancestors = ancestorScroll || ancestorResize ? [...(referenceEl ? getOverflowAncestors(referenceEl) : []), ...getOverflowAncestors(floating)] : [];
+  ancestors.forEach(ancestor => {
+    ancestorScroll && ancestor.addEventListener('scroll', update, {
+      passive: true
+    });
+    ancestorResize && ancestor.addEventListener('resize', update);
+  });
+  const cleanupIo = referenceEl && layoutShift ? observeMove(referenceEl, update) : null;
+  let reobserveFrame = -1;
+  let resizeObserver = null;
+  if (elementResize) {
+    resizeObserver = new ResizeObserver(_ref => {
+      let [firstEntry] = _ref;
+      if (firstEntry && firstEntry.target === referenceEl && resizeObserver) {
+        // Prevent update loops when using the `size` middleware.
+        // https://github.com/floating-ui/floating-ui/issues/1740
+        resizeObserver.unobserve(floating);
+        cancelAnimationFrame(reobserveFrame);
+        reobserveFrame = requestAnimationFrame(() => {
+          var _resizeObserver;
+          (_resizeObserver = resizeObserver) == null || _resizeObserver.observe(floating);
+        });
+      }
+      update();
+    });
+    if (referenceEl && !animationFrame) {
+      resizeObserver.observe(referenceEl);
+    }
+    resizeObserver.observe(floating);
+  }
+  let frameId;
+  let prevRefRect = animationFrame ? getBoundingClientRect(reference) : null;
+  if (animationFrame) {
+    frameLoop();
+  }
+  function frameLoop() {
+    const nextRefRect = getBoundingClientRect(reference);
+    if (prevRefRect && !rectsAreEqual(prevRefRect, nextRefRect)) {
+      update();
+    }
+    prevRefRect = nextRefRect;
+    frameId = requestAnimationFrame(frameLoop);
+  }
+  update();
+  return () => {
+    var _resizeObserver2;
+    ancestors.forEach(ancestor => {
+      ancestorScroll && ancestor.removeEventListener('scroll', update);
+      ancestorResize && ancestor.removeEventListener('resize', update);
+    });
+    cleanupIo == null || cleanupIo();
+    (_resizeObserver2 = resizeObserver) == null || _resizeObserver2.disconnect();
+    resizeObserver = null;
+    if (animationFrame) {
+      cancelAnimationFrame(frameId);
+    }
+  };
+}
+
+/**
+ * Resolves with an object of overflow side offsets that determine how much the
+ * element is overflowing a given clipping boundary on each side.
+ * - positive = overflowing the boundary by that number of pixels
+ * - negative = how many pixels left before it will overflow
+ * - 0 = lies flush with the boundary
+ * @see https://floating-ui.com/docs/detectOverflow
+ */
+const detectOverflow = detectOverflow$1;
+
+/**
+ * Modifies the placement by translating the floating element along the
+ * specified axes.
+ * A number (shorthand for `mainAxis` or distance), or an axes configuration
+ * object may be passed.
+ * @see https://floating-ui.com/docs/offset
+ */
+const offset = offset$1;
+
+/**
+ * Optimizes the visibility of the floating element by choosing the placement
+ * that has the most space available automatically, without needing to specify a
+ * preferred placement. Alternative to `flip`.
+ * @see https://floating-ui.com/docs/autoPlacement
+ */
+const autoPlacement = autoPlacement$1;
+
+/**
+ * Optimizes the visibility of the floating element by shifting it in order to
+ * keep it in view when it will overflow the clipping boundary.
+ * @see https://floating-ui.com/docs/shift
+ */
+const shift = shift$1;
+
+/**
+ * Optimizes the visibility of the floating element by flipping the `placement`
+ * in order to keep it in view when the preferred placement(s) will overflow the
+ * clipping boundary. Alternative to `autoPlacement`.
+ * @see https://floating-ui.com/docs/flip
+ */
+const flip = flip$1;
+
+/**
+ * Provides data that allows you to change the size of the floating element —
+ * for instance, prevent it from overflowing the clipping boundary or match the
+ * width of the reference element.
+ * @see https://floating-ui.com/docs/size
+ */
+const size = size$1;
+
+/**
+ * Provides data to hide the floating element in applicable situations, such as
+ * when it is not in the same clipping context as the reference element.
+ * @see https://floating-ui.com/docs/hide
+ */
+const hide = hide$1;
+
+/**
+ * Provides data to position an inner element of the floating element so that it
+ * appears centered to the reference element.
+ * @see https://floating-ui.com/docs/arrow
+ */
+const arrow = arrow$1;
+
+/**
+ * Provides improved positioning for inline reference elements that can span
+ * over multiple lines, such as hyperlinks or range selections.
+ * @see https://floating-ui.com/docs/inline
+ */
+const inline = inline$1;
+
+/**
+ * Built-in `limiter` that will stop `shift()` at a certain point.
+ */
+const limitShift = limitShift$1;
+
+/**
+ * Computes the `x` and `y` coordinates that will place the floating element
+ * next to a given reference element.
+ */
+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 computePosition$1(reference, floating, {
+    ...mergedOptions,
+    platform: platformWithCache
+  });
+};
+
+export { arrow, autoPlacement, autoUpdate, computePosition, detectOverflow, flip, hide, inline, limitShift, offset, platform, shift, size };