{"version":3,"file":"shepherd.min.js","sources":["../../node_modules/deepmerge/dist/cjs.js","../../src/js/utils/type-check.js","../../src/js/utils/auto-bind.js","../../src/js/utils/bind.js","../../src/js/utils/general.js","../../node_modules/@floating-ui/core/dist/floating-ui.core.esm.js","../../node_modules/@floating-ui/dom/dist/floating-ui.dom.esm.js","../../src/js/utils/floating-ui.js","../../node_modules/svelte/internal/index.mjs","../../src/js/components/shepherd-button.svelte","../../src/js/components/shepherd-footer.svelte","../../src/js/components/shepherd-cancel-icon.svelte","../../src/js/components/shepherd-title.svelte","../../src/js/components/shepherd-header.svelte","../../src/js/components/shepherd-text.svelte","../../src/js/components/shepherd-content.svelte","../../src/js/components/shepherd-element.svelte","../../src/js/utils/cleanup.js","../../src/js/components/shepherd-modal.svelte","../../src/js/utils/overlay-path.js","../../src/js/evented.js","../../src/js/step.js","../../src/js/tour.js","../../src/js/shepherd.js"],"sourcesContent":["'use strict';\n\nvar isMergeableObject = function isMergeableObject(value) {\n\treturn isNonNullObject(value)\n\t\t&& !isSpecial(value)\n};\n\nfunction isNonNullObject(value) {\n\treturn !!value && typeof value === 'object'\n}\n\nfunction isSpecial(value) {\n\tvar stringValue = Object.prototype.toString.call(value);\n\n\treturn stringValue === '[object RegExp]'\n\t\t|| stringValue === '[object Date]'\n\t\t|| isReactElement(value)\n}\n\n// see https://github.com/facebook/react/blob/b5ac963fb791d1298e7f396236383bc955f916c1/src/isomorphic/classic/element/ReactElement.js#L21-L25\nvar canUseSymbol = typeof Symbol === 'function' && Symbol.for;\nvar REACT_ELEMENT_TYPE = canUseSymbol ? Symbol.for('react.element') : 0xeac7;\n\nfunction isReactElement(value) {\n\treturn value.$$typeof === REACT_ELEMENT_TYPE\n}\n\nfunction emptyTarget(val) {\n\treturn Array.isArray(val) ? [] : {}\n}\n\nfunction cloneUnlessOtherwiseSpecified(value, options) {\n\treturn (options.clone !== false && options.isMergeableObject(value))\n\t\t? deepmerge(emptyTarget(value), value, options)\n\t\t: value\n}\n\nfunction defaultArrayMerge(target, source, options) {\n\treturn target.concat(source).map(function(element) {\n\t\treturn cloneUnlessOtherwiseSpecified(element, options)\n\t})\n}\n\nfunction getMergeFunction(key, options) {\n\tif (!options.customMerge) {\n\t\treturn deepmerge\n\t}\n\tvar customMerge = options.customMerge(key);\n\treturn typeof customMerge === 'function' ? customMerge : deepmerge\n}\n\nfunction getEnumerableOwnPropertySymbols(target) {\n\treturn Object.getOwnPropertySymbols\n\t\t? Object.getOwnPropertySymbols(target).filter(function(symbol) {\n\t\t\treturn Object.propertyIsEnumerable.call(target, symbol)\n\t\t})\n\t\t: []\n}\n\nfunction getKeys(target) {\n\treturn Object.keys(target).concat(getEnumerableOwnPropertySymbols(target))\n}\n\nfunction propertyIsOnObject(object, property) {\n\ttry {\n\t\treturn property in object\n\t} catch(_) {\n\t\treturn false\n\t}\n}\n\n// Protects from prototype poisoning and unexpected merging up the prototype chain.\nfunction propertyIsUnsafe(target, key) {\n\treturn propertyIsOnObject(target, key) // Properties are safe to merge if they don't exist in the target yet,\n\t\t&& !(Object.hasOwnProperty.call(target, key) // unsafe if they exist up the prototype chain,\n\t\t\t&& Object.propertyIsEnumerable.call(target, key)) // and also unsafe if they're nonenumerable.\n}\n\nfunction mergeObject(target, source, options) {\n\tvar destination = {};\n\tif (options.isMergeableObject(target)) {\n\t\tgetKeys(target).forEach(function(key) {\n\t\t\tdestination[key] = cloneUnlessOtherwiseSpecified(target[key], options);\n\t\t});\n\t}\n\tgetKeys(source).forEach(function(key) {\n\t\tif (propertyIsUnsafe(target, key)) {\n\t\t\treturn\n\t\t}\n\n\t\tif (propertyIsOnObject(target, key) && options.isMergeableObject(source[key])) {\n\t\t\tdestination[key] = getMergeFunction(key, options)(target[key], source[key], options);\n\t\t} else {\n\t\t\tdestination[key] = cloneUnlessOtherwiseSpecified(source[key], options);\n\t\t}\n\t});\n\treturn destination\n}\n\nfunction deepmerge(target, source, options) {\n\toptions = options || {};\n\toptions.arrayMerge = options.arrayMerge || defaultArrayMerge;\n\toptions.isMergeableObject = options.isMergeableObject || isMergeableObject;\n\t// cloneUnlessOtherwiseSpecified is added to `options` so that custom arrayMerge()\n\t// implementations can use it. The caller may not replace it.\n\toptions.cloneUnlessOtherwiseSpecified = cloneUnlessOtherwiseSpecified;\n\n\tvar sourceIsArray = Array.isArray(source);\n\tvar targetIsArray = Array.isArray(target);\n\tvar sourceAndTargetTypesMatch = sourceIsArray === targetIsArray;\n\n\tif (!sourceAndTargetTypesMatch) {\n\t\treturn cloneUnlessOtherwiseSpecified(source, options)\n\t} else if (sourceIsArray) {\n\t\treturn options.arrayMerge(target, source, options)\n\t} else {\n\t\treturn mergeObject(target, source, options)\n\t}\n}\n\ndeepmerge.all = function deepmergeAll(array, options) {\n\tif (!Array.isArray(array)) {\n\t\tthrow new Error('first argument should be an array')\n\t}\n\n\treturn array.reduce(function(prev, next) {\n\t\treturn deepmerge(prev, next, options)\n\t}, {})\n};\n\nvar deepmerge_1 = deepmerge;\n\nmodule.exports = deepmerge_1;\n","/**\n * Checks if `value` is classified as an `Element`.\n * @param {*} value The param to check if it is an Element\n */\nexport function isElement(value) {\n return value instanceof Element;\n}\n\n/**\n * Checks if `value` is classified as an `HTMLElement`.\n * @param {*} value The param to check if it is an HTMLElement\n */\nexport function isHTMLElement(value) {\n return value instanceof HTMLElement;\n}\n\n/**\n * Checks if `value` is classified as a `Function` object.\n * @param {*} value The param to check if it is a function\n */\nexport function isFunction(value) {\n return typeof value === 'function';\n}\n\n/**\n * Checks if `value` is classified as a `String` object.\n * @param {*} value The param to check if it is a string\n */\nexport function isString(value) {\n return typeof value === 'string';\n}\n\n/**\n * Checks if `value` is undefined.\n * @param {*} value The param to check if it is undefined\n */\nexport function isUndefined(value) {\n return value === undefined;\n}\n","/**\n * Binds all the methods on a JS Class to the `this` context of the class.\n * Adapted from https://github.com/sindresorhus/auto-bind\n * @param {object} self The `this` context of the class\n * @return {object} The `this` context of the class\n */\nexport default function autoBind(self) {\n const keys = Object.getOwnPropertyNames(self.constructor.prototype);\n for (let i = 0; i < keys.length; i++) {\n const key = keys[i];\n const val = self[key];\n if (key !== 'constructor' && typeof val === 'function') {\n self[key] = val.bind(self);\n }\n }\n\n return self;\n}\n","import { isUndefined } from './type-check';\n\n/**\n * Sets up the handler to determine if we should advance the tour\n * @param {string} selector\n * @param {Step} step The step instance\n * @return {Function}\n * @private\n */\nfunction _setupAdvanceOnHandler(selector, step) {\n return (event) => {\n if (step.isOpen()) {\n const targetIsEl = step.el && event.currentTarget === step.el;\n const targetIsSelector =\n !isUndefined(selector) && event.currentTarget.matches(selector);\n\n if (targetIsSelector || targetIsEl) {\n step.tour.next();\n }\n }\n };\n}\n\n/**\n * Bind the event handler for advanceOn\n * @param {Step} step The step instance\n */\nexport function bindAdvance(step) {\n // An empty selector matches the step element\n const { event, selector } = step.options.advanceOn || {};\n if (event) {\n const handler = _setupAdvanceOnHandler(selector, step);\n\n // TODO: this should also bind/unbind on show/hide\n let el;\n try {\n el = document.querySelector(selector);\n } catch (e) {\n // TODO\n }\n if (!isUndefined(selector) && !el) {\n return console.error(\n `No element was found for the selector supplied to advanceOn: ${selector}`\n );\n } else if (el) {\n el.addEventListener(event, handler);\n step.on('destroy', () => {\n return el.removeEventListener(event, handler);\n });\n } else {\n document.body.addEventListener(event, handler, true);\n step.on('destroy', () => {\n return document.body.removeEventListener(event, handler, true);\n });\n }\n } else {\n return console.error(\n 'advanceOn was defined, but no event name was passed.'\n );\n }\n}\n","import { isFunction, isString } from './type-check';\n\n/**\n * Ensure class prefix ends in `-`\n * @param {string} prefix The prefix to prepend to the class names generated by nano-css\n * @return {string} The prefix ending in `-`\n */\nexport function normalizePrefix(prefix) {\n if (!isString(prefix) || prefix === '') {\n return '';\n }\n\n return prefix.charAt(prefix.length - 1) !== '-' ? `${prefix}-` : prefix;\n}\n\n/**\n * Resolves attachTo options, converting element option value to a qualified HTMLElement.\n * @param {Step} step The step instance\n * @returns {{}|{element, on}}\n * `element` is a qualified HTML Element\n * `on` is a string position value\n */\nexport function parseAttachTo(step) {\n const options = step.options.attachTo || {};\n const returnOpts = Object.assign({}, options);\n\n if (isFunction(returnOpts.element)) {\n // Bind the callback to step so that it has access to the object, to enable running additional logic\n returnOpts.element = returnOpts.element.call(step);\n }\n\n if (isString(returnOpts.element)) {\n // Can't override the element in user opts reference because we can't\n // guarantee that the element will exist in the future.\n try {\n returnOpts.element = document.querySelector(returnOpts.element);\n } catch (e) {\n // TODO\n }\n if (!returnOpts.element) {\n console.error(\n `The element for this Shepherd step was not found ${options.element}`\n );\n }\n }\n\n return returnOpts;\n}\n\n/**\n * Checks if the step should be centered or not. Does not trigger attachTo.element evaluation, making it a pure\n * alternative for the deprecated step.isCentered() method.\n * @param resolvedAttachToOptions\n * @returns {boolean}\n */\nexport function shouldCenterStep(resolvedAttachToOptions) {\n if (\n resolvedAttachToOptions === undefined ||\n resolvedAttachToOptions === null\n ) {\n return true;\n }\n\n return !resolvedAttachToOptions.element || !resolvedAttachToOptions.on;\n}\n\n/**\n * Create a unique id for steps, tours, modals, etc\n * @return {string}\n */\nexport function uuid() {\n let d = Date.now();\n return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {\n const r = (d + Math.random() * 16) % 16 | 0;\n d = Math.floor(d / 16);\n return (c == 'x' ? r : (r & 0x3) | 0x8).toString(16);\n });\n}\n","function getAlignment(placement) {\n return placement.split('-')[1];\n}\n\nfunction getLengthFromAxis(axis) {\n return axis === 'y' ? 'height' : 'width';\n}\n\nfunction getSide(placement) {\n return placement.split('-')[0];\n}\n\nfunction getMainAxisFromPlacement(placement) {\n return ['top', 'bottom'].includes(getSide(placement)) ? 'x' : 'y';\n}\n\nfunction computeCoordsFromPlacement(_ref, placement, rtl) {\n let {\n reference,\n floating\n } = _ref;\n const commonX = reference.x + reference.width / 2 - floating.width / 2;\n const commonY = reference.y + reference.height / 2 - floating.height / 2;\n const mainAxis = getMainAxisFromPlacement(placement);\n const length = getLengthFromAxis(mainAxis);\n const commonAlign = reference[length] / 2 - floating[length] / 2;\n const side = getSide(placement);\n const isVertical = mainAxis === 'x';\n let coords;\n switch (side) {\n case 'top':\n coords = {\n x: commonX,\n y: reference.y - floating.height\n };\n break;\n case 'bottom':\n coords = {\n x: commonX,\n y: reference.y + reference.height\n };\n break;\n case 'right':\n coords = {\n x: reference.x + reference.width,\n y: commonY\n };\n break;\n case 'left':\n coords = {\n x: reference.x - floating.width,\n y: commonY\n };\n break;\n default:\n coords = {\n x: reference.x,\n y: reference.y\n };\n }\n switch (getAlignment(placement)) {\n case 'start':\n coords[mainAxis] -= commonAlign * (rtl && isVertical ? -1 : 1);\n break;\n case 'end':\n coords[mainAxis] += commonAlign * (rtl && isVertical ? -1 : 1);\n break;\n }\n return coords;\n}\n\n/**\n * Computes the `x` and `y` coordinates that will place the floating element\n * next to a reference element when it is given a certain positioning strategy.\n *\n * This export does not have any `platform` interface logic. You will need to\n * write one for the platform you are using Floating UI with.\n */\nconst computePosition = async (reference, floating, config) => {\n const {\n placement = 'bottom',\n strategy = 'absolute',\n middleware = [],\n platform\n } = config;\n const validMiddleware = middleware.filter(Boolean);\n const rtl = await (platform.isRTL == null ? void 0 : platform.isRTL(floating));\n if (process.env.NODE_ENV !== \"production\") {\n if (platform == null) {\n console.error(['Floating UI: `platform` property was not passed to config. If you', 'want to use Floating UI on the web, install @floating-ui/dom', 'instead of the /core package. Otherwise, you can create your own', '`platform`: https://floating-ui.com/docs/platform'].join(' '));\n }\n if (validMiddleware.filter(_ref => {\n let {\n name\n } = _ref;\n return name === 'autoPlacement' || name === 'flip';\n }).length > 1) {\n throw new Error(['Floating UI: duplicate `flip` and/or `autoPlacement` middleware', 'detected. This will lead to an infinite loop. Ensure only one of', 'either has been passed to the `middleware` array.'].join(' '));\n }\n if (!reference || !floating) {\n console.error(['Floating UI: The reference and/or floating element was not defined', 'when `computePosition()` was called. Ensure that both elements have', 'been created and can be measured.'].join(' '));\n }\n }\n let rects = await platform.getElementRects({\n reference,\n floating,\n strategy\n });\n let {\n x,\n y\n } = computeCoordsFromPlacement(rects, placement, rtl);\n let statefulPlacement = placement;\n let middlewareData = {};\n let resetCount = 0;\n for (let i = 0; i < validMiddleware.length; i++) {\n const {\n name,\n fn\n } = validMiddleware[i];\n const {\n x: nextX,\n y: nextY,\n data,\n reset\n } = await fn({\n x,\n y,\n initialPlacement: placement,\n placement: statefulPlacement,\n strategy,\n middlewareData,\n rects,\n platform,\n elements: {\n reference,\n floating\n }\n });\n x = nextX != null ? nextX : x;\n y = nextY != null ? nextY : y;\n middlewareData = {\n ...middlewareData,\n [name]: {\n ...middlewareData[name],\n ...data\n }\n };\n if (process.env.NODE_ENV !== \"production\") {\n if (resetCount > 50) {\n console.warn(['Floating UI: The middleware lifecycle appears to be running in an', 'infinite loop. This is usually caused by a `reset` continually', 'being returned without a break condition.'].join(' '));\n }\n }\n if (reset && resetCount <= 50) {\n resetCount++;\n if (typeof reset === 'object') {\n if (reset.placement) {\n statefulPlacement = reset.placement;\n }\n if (reset.rects) {\n rects = reset.rects === true ? await platform.getElementRects({\n reference,\n floating,\n strategy\n }) : reset.rects;\n }\n ({\n x,\n y\n } = computeCoordsFromPlacement(rects, statefulPlacement, rtl));\n }\n i = -1;\n continue;\n }\n }\n return {\n x,\n y,\n placement: statefulPlacement,\n strategy,\n middlewareData\n };\n};\n\nfunction expandPaddingObject(padding) {\n return {\n top: 0,\n right: 0,\n bottom: 0,\n left: 0,\n ...padding\n };\n}\n\nfunction getSideObjectFromPadding(padding) {\n return typeof padding !== 'number' ? expandPaddingObject(padding) : {\n top: padding,\n right: padding,\n bottom: padding,\n left: padding\n };\n}\n\nfunction rectToClientRect(rect) {\n return {\n ...rect,\n top: rect.y,\n left: rect.x,\n right: rect.x + rect.width,\n bottom: rect.y + rect.height\n };\n}\n\n/**\n * Resolves with an object of overflow side offsets that determine how much the\n * element is overflowing a given clipping boundary on each side.\n * - positive = overflowing the boundary by that number of pixels\n * - negative = how many pixels left before it will overflow\n * - 0 = lies flush with the boundary\n * @see https://floating-ui.com/docs/detectOverflow\n */\nasync function detectOverflow(state, options) {\n var _await$platform$isEle;\n if (options === void 0) {\n options = {};\n }\n const {\n x,\n y,\n platform,\n rects,\n elements,\n strategy\n } = state;\n const {\n boundary = 'clippingAncestors',\n rootBoundary = 'viewport',\n elementContext = 'floating',\n altBoundary = false,\n padding = 0\n } = options;\n const paddingObject = getSideObjectFromPadding(padding);\n const altContext = elementContext === 'floating' ? 'reference' : 'floating';\n const element = elements[altBoundary ? altContext : elementContext];\n const clippingClientRect = rectToClientRect(await platform.getClippingRect({\n element: ((_await$platform$isEle = await (platform.isElement == null ? void 0 : platform.isElement(element))) != null ? _await$platform$isEle : true) ? element : element.contextElement || (await (platform.getDocumentElement == null ? void 0 : platform.getDocumentElement(elements.floating))),\n boundary,\n rootBoundary,\n strategy\n }));\n const rect = elementContext === 'floating' ? {\n ...rects.floating,\n x,\n y\n } : rects.reference;\n const offsetParent = await (platform.getOffsetParent == null ? void 0 : platform.getOffsetParent(elements.floating));\n const offsetScale = (await (platform.isElement == null ? void 0 : platform.isElement(offsetParent))) ? (await (platform.getScale == null ? void 0 : platform.getScale(offsetParent))) || {\n x: 1,\n y: 1\n } : {\n x: 1,\n y: 1\n };\n const elementClientRect = rectToClientRect(platform.convertOffsetParentRelativeRectToViewportRelativeRect ? await platform.convertOffsetParentRelativeRectToViewportRelativeRect({\n rect,\n offsetParent,\n strategy\n }) : rect);\n if (process.env.NODE_ENV !== \"production\") ;\n return {\n top: (clippingClientRect.top - elementClientRect.top + paddingObject.top) / offsetScale.y,\n bottom: (elementClientRect.bottom - clippingClientRect.bottom + paddingObject.bottom) / offsetScale.y,\n left: (clippingClientRect.left - elementClientRect.left + paddingObject.left) / offsetScale.x,\n right: (elementClientRect.right - clippingClientRect.right + paddingObject.right) / offsetScale.x\n };\n}\n\nconst min = Math.min;\nconst max = Math.max;\n\nfunction within(min$1, value, max$1) {\n return max(min$1, min(value, max$1));\n}\n\n/**\n * Provides data to position an inner element of the floating element so that it\n * appears centered to the reference element.\n * @see https://floating-ui.com/docs/arrow\n */\nconst arrow = options => ({\n name: 'arrow',\n options,\n async fn(state) {\n // Since `element` is required, we don't Partial<> the type.\n const {\n element,\n padding = 0\n } = options || {};\n const {\n x,\n y,\n placement,\n rects,\n platform,\n elements\n } = state;\n if (element == null) {\n if (process.env.NODE_ENV !== \"production\") {\n console.warn('Floating UI: No `element` was passed to the `arrow` middleware.');\n }\n return {};\n }\n const paddingObject = getSideObjectFromPadding(padding);\n const coords = {\n x,\n y\n };\n const axis = getMainAxisFromPlacement(placement);\n const length = getLengthFromAxis(axis);\n const arrowDimensions = await platform.getDimensions(element);\n const isYAxis = axis === 'y';\n const minProp = isYAxis ? 'top' : 'left';\n const maxProp = isYAxis ? 'bottom' : 'right';\n const clientProp = isYAxis ? 'clientHeight' : 'clientWidth';\n const endDiff = rects.reference[length] + rects.reference[axis] - coords[axis] - rects.floating[length];\n const startDiff = coords[axis] - rects.reference[axis];\n const arrowOffsetParent = await (platform.getOffsetParent == null ? void 0 : platform.getOffsetParent(element));\n let clientSize = arrowOffsetParent ? arrowOffsetParent[clientProp] : 0;\n\n // DOM platform can return `window` as the `offsetParent`.\n if (!clientSize || !(await (platform.isElement == null ? void 0 : platform.isElement(arrowOffsetParent)))) {\n clientSize = elements.floating[clientProp] || rects.floating[length];\n }\n const centerToReference = endDiff / 2 - startDiff / 2;\n\n // Make sure the arrow doesn't overflow the floating element if the center\n // point is outside the floating element's bounds.\n const min = paddingObject[minProp];\n const max = clientSize - arrowDimensions[length] - paddingObject[maxProp];\n const center = clientSize / 2 - arrowDimensions[length] / 2 + centerToReference;\n const offset = within(min, center, max);\n\n // If the reference is small enough that the arrow's padding causes it to\n // to point to nothing for an aligned placement, adjust the offset of the\n // floating element itself. This stops `shift()` from taking action, but can\n // be worked around by calling it again after the `arrow()` if desired.\n const shouldAddOffset = getAlignment(placement) != null && center != offset && rects.reference[length] / 2 - (center < min ? paddingObject[minProp] : paddingObject[maxProp]) - arrowDimensions[length] / 2 < 0;\n const alignmentOffset = shouldAddOffset ? center < min ? min - center : max - center : 0;\n return {\n [axis]: coords[axis] - alignmentOffset,\n data: {\n [axis]: offset,\n centerOffset: center - offset\n }\n };\n }\n});\n\nconst sides = ['top', 'right', 'bottom', 'left'];\nconst allPlacements = /*#__PURE__*/sides.reduce((acc, side) => acc.concat(side, side + \"-start\", side + \"-end\"), []);\n\nconst oppositeSideMap = {\n left: 'right',\n right: 'left',\n bottom: 'top',\n top: 'bottom'\n};\nfunction getOppositePlacement(placement) {\n return placement.replace(/left|right|bottom|top/g, side => oppositeSideMap[side]);\n}\n\nfunction getAlignmentSides(placement, rects, rtl) {\n if (rtl === void 0) {\n rtl = false;\n }\n const alignment = getAlignment(placement);\n const mainAxis = getMainAxisFromPlacement(placement);\n const length = getLengthFromAxis(mainAxis);\n let mainAlignmentSide = mainAxis === 'x' ? alignment === (rtl ? 'end' : 'start') ? 'right' : 'left' : alignment === 'start' ? 'bottom' : 'top';\n if (rects.reference[length] > rects.floating[length]) {\n mainAlignmentSide = getOppositePlacement(mainAlignmentSide);\n }\n return {\n main: mainAlignmentSide,\n cross: getOppositePlacement(mainAlignmentSide)\n };\n}\n\nconst oppositeAlignmentMap = {\n start: 'end',\n end: 'start'\n};\nfunction getOppositeAlignmentPlacement(placement) {\n return placement.replace(/start|end/g, alignment => oppositeAlignmentMap[alignment]);\n}\n\nfunction getPlacementList(alignment, autoAlignment, allowedPlacements) {\n const allowedPlacementsSortedByAlignment = alignment ? [...allowedPlacements.filter(placement => getAlignment(placement) === alignment), ...allowedPlacements.filter(placement => getAlignment(placement) !== alignment)] : allowedPlacements.filter(placement => getSide(placement) === placement);\n return allowedPlacementsSortedByAlignment.filter(placement => {\n if (alignment) {\n return getAlignment(placement) === alignment || (autoAlignment ? getOppositeAlignmentPlacement(placement) !== placement : false);\n }\n return true;\n });\n}\n/**\n * Optimizes the visibility of the floating element by choosing the placement\n * that has the most space available automatically, without needing to specify a\n * preferred placement. Alternative to `flip`.\n * @see https://floating-ui.com/docs/autoPlacement\n */\nconst autoPlacement = function (options) {\n if (options === void 0) {\n options = {};\n }\n return {\n name: 'autoPlacement',\n options,\n async fn(state) {\n var _middlewareData$autoP, _middlewareData$autoP2, _placementsThatFitOnE;\n const {\n rects,\n middlewareData,\n placement,\n platform,\n elements\n } = state;\n const {\n crossAxis = false,\n alignment,\n allowedPlacements = allPlacements,\n autoAlignment = true,\n ...detectOverflowOptions\n } = options;\n const placements = alignment !== undefined || allowedPlacements === allPlacements ? getPlacementList(alignment || null, autoAlignment, allowedPlacements) : allowedPlacements;\n const overflow = await detectOverflow(state, detectOverflowOptions);\n const currentIndex = ((_middlewareData$autoP = middlewareData.autoPlacement) == null ? void 0 : _middlewareData$autoP.index) || 0;\n const currentPlacement = placements[currentIndex];\n if (currentPlacement == null) {\n return {};\n }\n const {\n main,\n cross\n } = getAlignmentSides(currentPlacement, rects, await (platform.isRTL == null ? void 0 : platform.isRTL(elements.floating)));\n\n // Make `computeCoords` start from the right place.\n if (placement !== currentPlacement) {\n return {\n reset: {\n placement: placements[0]\n }\n };\n }\n const currentOverflows = [overflow[getSide(currentPlacement)], overflow[main], overflow[cross]];\n const allOverflows = [...(((_middlewareData$autoP2 = middlewareData.autoPlacement) == null ? void 0 : _middlewareData$autoP2.overflows) || []), {\n placement: currentPlacement,\n overflows: currentOverflows\n }];\n const nextPlacement = placements[currentIndex + 1];\n\n // There are more placements to check.\n if (nextPlacement) {\n return {\n data: {\n index: currentIndex + 1,\n overflows: allOverflows\n },\n reset: {\n placement: nextPlacement\n }\n };\n }\n const placementsSortedByMostSpace = allOverflows.map(d => {\n const alignment = getAlignment(d.placement);\n return [d.placement, alignment && crossAxis ?\n // Check along the mainAxis and main crossAxis side.\n d.overflows.slice(0, 2).reduce((acc, v) => acc + v, 0) :\n // Check only the mainAxis.\n d.overflows[0], d.overflows];\n }).sort((a, b) => a[1] - b[1]);\n const placementsThatFitOnEachSide = placementsSortedByMostSpace.filter(d => d[2].slice(0,\n // Aligned placements should not check their opposite crossAxis\n // side.\n getAlignment(d[0]) ? 2 : 3).every(v => v <= 0));\n const resetPlacement = ((_placementsThatFitOnE = placementsThatFitOnEachSide[0]) == null ? void 0 : _placementsThatFitOnE[0]) || placementsSortedByMostSpace[0][0];\n if (resetPlacement !== placement) {\n return {\n data: {\n index: currentIndex + 1,\n overflows: allOverflows\n },\n reset: {\n placement: resetPlacement\n }\n };\n }\n return {};\n }\n };\n};\n\nfunction getExpandedPlacements(placement) {\n const oppositePlacement = getOppositePlacement(placement);\n return [getOppositeAlignmentPlacement(placement), oppositePlacement, getOppositeAlignmentPlacement(oppositePlacement)];\n}\n\nfunction getSideList(side, isStart, rtl) {\n const lr = ['left', 'right'];\n const rl = ['right', 'left'];\n const tb = ['top', 'bottom'];\n const bt = ['bottom', 'top'];\n switch (side) {\n case 'top':\n case 'bottom':\n if (rtl) return isStart ? rl : lr;\n return isStart ? lr : rl;\n case 'left':\n case 'right':\n return isStart ? tb : bt;\n default:\n return [];\n }\n}\nfunction getOppositeAxisPlacements(placement, flipAlignment, direction, rtl) {\n const alignment = getAlignment(placement);\n let list = getSideList(getSide(placement), direction === 'start', rtl);\n if (alignment) {\n list = list.map(side => side + \"-\" + alignment);\n if (flipAlignment) {\n list = list.concat(list.map(getOppositeAlignmentPlacement));\n }\n }\n return list;\n}\n\n/**\n * Optimizes the visibility of the floating element by flipping the `placement`\n * in order to keep it in view when the preferred placement(s) will overflow the\n * clipping boundary. Alternative to `autoPlacement`.\n * @see https://floating-ui.com/docs/flip\n */\nconst flip = function (options) {\n if (options === void 0) {\n options = {};\n }\n return {\n name: 'flip',\n options,\n async fn(state) {\n var _middlewareData$flip;\n const {\n placement,\n middlewareData,\n rects,\n initialPlacement,\n platform,\n elements\n } = state;\n const {\n mainAxis: checkMainAxis = true,\n crossAxis: checkCrossAxis = true,\n fallbackPlacements: specifiedFallbackPlacements,\n fallbackStrategy = 'bestFit',\n fallbackAxisSideDirection = 'none',\n flipAlignment = true,\n ...detectOverflowOptions\n } = options;\n const side = getSide(placement);\n const isBasePlacement = getSide(initialPlacement) === initialPlacement;\n const rtl = await (platform.isRTL == null ? void 0 : platform.isRTL(elements.floating));\n const fallbackPlacements = specifiedFallbackPlacements || (isBasePlacement || !flipAlignment ? [getOppositePlacement(initialPlacement)] : getExpandedPlacements(initialPlacement));\n if (!specifiedFallbackPlacements && fallbackAxisSideDirection !== 'none') {\n fallbackPlacements.push(...getOppositeAxisPlacements(initialPlacement, flipAlignment, fallbackAxisSideDirection, rtl));\n }\n const placements = [initialPlacement, ...fallbackPlacements];\n const overflow = await detectOverflow(state, detectOverflowOptions);\n const overflows = [];\n let overflowsData = ((_middlewareData$flip = middlewareData.flip) == null ? void 0 : _middlewareData$flip.overflows) || [];\n if (checkMainAxis) {\n overflows.push(overflow[side]);\n }\n if (checkCrossAxis) {\n const {\n main,\n cross\n } = getAlignmentSides(placement, rects, rtl);\n overflows.push(overflow[main], overflow[cross]);\n }\n overflowsData = [...overflowsData, {\n placement,\n overflows\n }];\n\n // One or more sides is overflowing.\n if (!overflows.every(side => side <= 0)) {\n var _middlewareData$flip2, _overflowsData$filter;\n const nextIndex = (((_middlewareData$flip2 = middlewareData.flip) == null ? void 0 : _middlewareData$flip2.index) || 0) + 1;\n const nextPlacement = placements[nextIndex];\n if (nextPlacement) {\n // Try next placement and re-run the lifecycle.\n return {\n data: {\n index: nextIndex,\n overflows: overflowsData\n },\n reset: {\n placement: nextPlacement\n }\n };\n }\n\n // First, find the candidates that fit on the mainAxis side of overflow,\n // then find the placement that fits the best on the main crossAxis side.\n let resetPlacement = (_overflowsData$filter = overflowsData.filter(d => d.overflows[0] <= 0).sort((a, b) => a.overflows[1] - b.overflows[1])[0]) == null ? void 0 : _overflowsData$filter.placement;\n\n // Otherwise fallback.\n if (!resetPlacement) {\n switch (fallbackStrategy) {\n case 'bestFit':\n {\n var _overflowsData$map$so;\n const placement = (_overflowsData$map$so = overflowsData.map(d => [d.placement, d.overflows.filter(overflow => overflow > 0).reduce((acc, overflow) => acc + overflow, 0)]).sort((a, b) => a[1] - b[1])[0]) == null ? void 0 : _overflowsData$map$so[0];\n if (placement) {\n resetPlacement = placement;\n }\n break;\n }\n case 'initialPlacement':\n resetPlacement = initialPlacement;\n break;\n }\n }\n if (placement !== resetPlacement) {\n return {\n reset: {\n placement: resetPlacement\n }\n };\n }\n }\n return {};\n }\n };\n};\n\nfunction getSideOffsets(overflow, rect) {\n return {\n top: overflow.top - rect.height,\n right: overflow.right - rect.width,\n bottom: overflow.bottom - rect.height,\n left: overflow.left - rect.width\n };\n}\nfunction isAnySideFullyClipped(overflow) {\n return sides.some(side => overflow[side] >= 0);\n}\n/**\n * Provides data to hide the floating element in applicable situations, such as\n * when it is not in the same clipping context as the reference element.\n * @see https://floating-ui.com/docs/hide\n */\nconst hide = function (options) {\n if (options === void 0) {\n options = {};\n }\n return {\n name: 'hide',\n options,\n async fn(state) {\n const {\n strategy = 'referenceHidden',\n ...detectOverflowOptions\n } = options;\n const {\n rects\n } = state;\n switch (strategy) {\n case 'referenceHidden':\n {\n const overflow = await detectOverflow(state, {\n ...detectOverflowOptions,\n elementContext: 'reference'\n });\n const offsets = getSideOffsets(overflow, rects.reference);\n return {\n data: {\n referenceHiddenOffsets: offsets,\n referenceHidden: isAnySideFullyClipped(offsets)\n }\n };\n }\n case 'escaped':\n {\n const overflow = await detectOverflow(state, {\n ...detectOverflowOptions,\n altBoundary: true\n });\n const offsets = getSideOffsets(overflow, rects.floating);\n return {\n data: {\n escapedOffsets: offsets,\n escaped: isAnySideFullyClipped(offsets)\n }\n };\n }\n default:\n {\n return {};\n }\n }\n }\n };\n};\n\nfunction getBoundingRect(rects) {\n const minX = min(...rects.map(rect => rect.left));\n const minY = min(...rects.map(rect => rect.top));\n const maxX = max(...rects.map(rect => rect.right));\n const maxY = max(...rects.map(rect => rect.bottom));\n return {\n x: minX,\n y: minY,\n width: maxX - minX,\n height: maxY - minY\n };\n}\nfunction getRectsByLine(rects) {\n const sortedRects = rects.slice().sort((a, b) => a.y - b.y);\n const groups = [];\n let prevRect = null;\n for (let i = 0; i < sortedRects.length; i++) {\n const rect = sortedRects[i];\n if (!prevRect || rect.y - prevRect.y > prevRect.height / 2) {\n groups.push([rect]);\n } else {\n groups[groups.length - 1].push(rect);\n }\n prevRect = rect;\n }\n return groups.map(rect => rectToClientRect(getBoundingRect(rect)));\n}\n/**\n * Provides improved positioning for inline reference elements that can span\n * over multiple lines, such as hyperlinks or range selections.\n * @see https://floating-ui.com/docs/inline\n */\nconst inline = function (options) {\n if (options === void 0) {\n options = {};\n }\n return {\n name: 'inline',\n options,\n async fn(state) {\n const {\n placement,\n elements,\n rects,\n platform,\n strategy\n } = state;\n // A MouseEvent's client{X,Y} coords can be up to 2 pixels off a\n // ClientRect's bounds, despite the event listener being triggered. A\n // padding of 2 seems to handle this issue.\n const {\n padding = 2,\n x,\n y\n } = options;\n const nativeClientRects = Array.from((await (platform.getClientRects == null ? void 0 : platform.getClientRects(elements.reference))) || []);\n const clientRects = getRectsByLine(nativeClientRects);\n const fallback = rectToClientRect(getBoundingRect(nativeClientRects));\n const paddingObject = getSideObjectFromPadding(padding);\n function getBoundingClientRect() {\n // There are two rects and they are disjoined.\n if (clientRects.length === 2 && clientRects[0].left > clientRects[1].right && x != null && y != null) {\n // Find the first rect in which the point is fully inside.\n return clientRects.find(rect => x > rect.left - paddingObject.left && x < rect.right + paddingObject.right && y > rect.top - paddingObject.top && y < rect.bottom + paddingObject.bottom) || fallback;\n }\n\n // There are 2 or more connected rects.\n if (clientRects.length >= 2) {\n if (getMainAxisFromPlacement(placement) === 'x') {\n const firstRect = clientRects[0];\n const lastRect = clientRects[clientRects.length - 1];\n const isTop = getSide(placement) === 'top';\n const top = firstRect.top;\n const bottom = lastRect.bottom;\n const left = isTop ? firstRect.left : lastRect.left;\n const right = isTop ? firstRect.right : lastRect.right;\n const width = right - left;\n const height = bottom - top;\n return {\n top,\n bottom,\n left,\n right,\n width,\n height,\n x: left,\n y: top\n };\n }\n const isLeftSide = getSide(placement) === 'left';\n const maxRight = max(...clientRects.map(rect => rect.right));\n const minLeft = min(...clientRects.map(rect => rect.left));\n const measureRects = clientRects.filter(rect => isLeftSide ? rect.left === minLeft : rect.right === maxRight);\n const top = measureRects[0].top;\n const bottom = measureRects[measureRects.length - 1].bottom;\n const left = minLeft;\n const right = maxRight;\n const width = right - left;\n const height = bottom - top;\n return {\n top,\n bottom,\n left,\n right,\n width,\n height,\n x: left,\n y: top\n };\n }\n return fallback;\n }\n const resetRects = await platform.getElementRects({\n reference: {\n getBoundingClientRect\n },\n floating: elements.floating,\n strategy\n });\n if (rects.reference.x !== resetRects.reference.x || rects.reference.y !== resetRects.reference.y || rects.reference.width !== resetRects.reference.width || rects.reference.height !== resetRects.reference.height) {\n return {\n reset: {\n rects: resetRects\n }\n };\n }\n return {};\n }\n };\n};\n\nasync function convertValueToCoords(state, value) {\n const {\n placement,\n platform,\n elements\n } = state;\n const rtl = await (platform.isRTL == null ? void 0 : platform.isRTL(elements.floating));\n const side = getSide(placement);\n const alignment = getAlignment(placement);\n const isVertical = getMainAxisFromPlacement(placement) === 'x';\n const mainAxisMulti = ['left', 'top'].includes(side) ? -1 : 1;\n const crossAxisMulti = rtl && isVertical ? -1 : 1;\n const rawValue = typeof value === 'function' ? value(state) : value;\n\n // eslint-disable-next-line prefer-const\n let {\n mainAxis,\n crossAxis,\n alignmentAxis\n } = typeof rawValue === 'number' ? {\n mainAxis: rawValue,\n crossAxis: 0,\n alignmentAxis: null\n } : {\n mainAxis: 0,\n crossAxis: 0,\n alignmentAxis: null,\n ...rawValue\n };\n if (alignment && typeof alignmentAxis === 'number') {\n crossAxis = alignment === 'end' ? alignmentAxis * -1 : alignmentAxis;\n }\n return isVertical ? {\n x: crossAxis * crossAxisMulti,\n y: mainAxis * mainAxisMulti\n } : {\n x: mainAxis * mainAxisMulti,\n y: crossAxis * crossAxisMulti\n };\n}\n\n/**\n * Modifies the placement by translating the floating element along the\n * specified axes.\n * A number (shorthand for `mainAxis` or distance), or an axes configuration\n * object may be passed.\n * @see https://floating-ui.com/docs/offset\n */\nconst offset = function (value) {\n if (value === void 0) {\n value = 0;\n }\n return {\n name: 'offset',\n options: value,\n async fn(state) {\n const {\n x,\n y\n } = state;\n const diffCoords = await convertValueToCoords(state, value);\n return {\n x: x + diffCoords.x,\n y: y + diffCoords.y,\n data: diffCoords\n };\n }\n };\n};\n\nfunction getCrossAxis(axis) {\n return axis === 'x' ? 'y' : 'x';\n}\n\n/**\n * Optimizes the visibility of the floating element by shifting it in order to\n * keep it in view when it will overflow the clipping boundary.\n * @see https://floating-ui.com/docs/shift\n */\nconst shift = function (options) {\n if (options === void 0) {\n options = {};\n }\n return {\n name: 'shift',\n options,\n async fn(state) {\n const {\n x,\n y,\n placement\n } = state;\n const {\n mainAxis: checkMainAxis = true,\n crossAxis: checkCrossAxis = false,\n limiter = {\n fn: _ref => {\n let {\n x,\n y\n } = _ref;\n return {\n x,\n y\n };\n }\n },\n ...detectOverflowOptions\n } = options;\n const coords = {\n x,\n y\n };\n const overflow = await detectOverflow(state, detectOverflowOptions);\n const mainAxis = getMainAxisFromPlacement(getSide(placement));\n const crossAxis = getCrossAxis(mainAxis);\n let mainAxisCoord = coords[mainAxis];\n let crossAxisCoord = coords[crossAxis];\n if (checkMainAxis) {\n const minSide = mainAxis === 'y' ? 'top' : 'left';\n const maxSide = mainAxis === 'y' ? 'bottom' : 'right';\n const min = mainAxisCoord + overflow[minSide];\n const max = mainAxisCoord - overflow[maxSide];\n mainAxisCoord = within(min, mainAxisCoord, max);\n }\n if (checkCrossAxis) {\n const minSide = crossAxis === 'y' ? 'top' : 'left';\n const maxSide = crossAxis === 'y' ? 'bottom' : 'right';\n const min = crossAxisCoord + overflow[minSide];\n const max = crossAxisCoord - overflow[maxSide];\n crossAxisCoord = within(min, crossAxisCoord, max);\n }\n const limitedCoords = limiter.fn({\n ...state,\n [mainAxis]: mainAxisCoord,\n [crossAxis]: crossAxisCoord\n });\n return {\n ...limitedCoords,\n data: {\n x: limitedCoords.x - x,\n y: limitedCoords.y - y\n }\n };\n }\n };\n};\n/**\n * Built-in `limiter` that will stop `shift()` at a certain point.\n */\nconst limitShift = function (options) {\n if (options === void 0) {\n options = {};\n }\n return {\n options,\n fn(state) {\n const {\n x,\n y,\n placement,\n rects,\n middlewareData\n } = state;\n const {\n offset = 0,\n mainAxis: checkMainAxis = true,\n crossAxis: checkCrossAxis = true\n } = options;\n const coords = {\n x,\n y\n };\n const mainAxis = getMainAxisFromPlacement(placement);\n const crossAxis = getCrossAxis(mainAxis);\n let mainAxisCoord = coords[mainAxis];\n let crossAxisCoord = coords[crossAxis];\n const rawOffset = typeof offset === 'function' ? offset(state) : offset;\n const computedOffset = typeof rawOffset === 'number' ? {\n mainAxis: rawOffset,\n crossAxis: 0\n } : {\n mainAxis: 0,\n crossAxis: 0,\n ...rawOffset\n };\n if (checkMainAxis) {\n const len = mainAxis === 'y' ? 'height' : 'width';\n const limitMin = rects.reference[mainAxis] - rects.floating[len] + computedOffset.mainAxis;\n const limitMax = rects.reference[mainAxis] + rects.reference[len] - computedOffset.mainAxis;\n if (mainAxisCoord < limitMin) {\n mainAxisCoord = limitMin;\n } else if (mainAxisCoord > limitMax) {\n mainAxisCoord = limitMax;\n }\n }\n if (checkCrossAxis) {\n var _middlewareData$offse, _middlewareData$offse2;\n const len = mainAxis === 'y' ? 'width' : 'height';\n const isOriginSide = ['top', 'left'].includes(getSide(placement));\n const limitMin = rects.reference[crossAxis] - rects.floating[len] + (isOriginSide ? ((_middlewareData$offse = middlewareData.offset) == null ? void 0 : _middlewareData$offse[crossAxis]) || 0 : 0) + (isOriginSide ? 0 : computedOffset.crossAxis);\n const limitMax = rects.reference[crossAxis] + rects.reference[len] + (isOriginSide ? 0 : ((_middlewareData$offse2 = middlewareData.offset) == null ? void 0 : _middlewareData$offse2[crossAxis]) || 0) - (isOriginSide ? computedOffset.crossAxis : 0);\n if (crossAxisCoord < limitMin) {\n crossAxisCoord = limitMin;\n } else if (crossAxisCoord > limitMax) {\n crossAxisCoord = limitMax;\n }\n }\n return {\n [mainAxis]: mainAxisCoord,\n [crossAxis]: crossAxisCoord\n };\n }\n };\n};\n\n/**\n * Provides data that allows you to change the size of the floating element —\n * for instance, prevent it from overflowing the clipping boundary or match the\n * width of the reference element.\n * @see https://floating-ui.com/docs/size\n */\nconst size = function (options) {\n if (options === void 0) {\n options = {};\n }\n return {\n name: 'size',\n options,\n async fn(state) {\n const {\n placement,\n rects,\n platform,\n elements\n } = state;\n const {\n apply = () => {},\n ...detectOverflowOptions\n } = options;\n const overflow = await detectOverflow(state, detectOverflowOptions);\n const side = getSide(placement);\n const alignment = getAlignment(placement);\n const axis = getMainAxisFromPlacement(placement);\n const isXAxis = axis === 'x';\n const {\n width,\n height\n } = rects.floating;\n let heightSide;\n let widthSide;\n if (side === 'top' || side === 'bottom') {\n heightSide = side;\n widthSide = alignment === ((await (platform.isRTL == null ? void 0 : platform.isRTL(elements.floating))) ? 'start' : 'end') ? 'left' : 'right';\n } else {\n widthSide = side;\n heightSide = alignment === 'end' ? 'top' : 'bottom';\n }\n const overflowAvailableHeight = height - overflow[heightSide];\n const overflowAvailableWidth = width - overflow[widthSide];\n let availableHeight = overflowAvailableHeight;\n let availableWidth = overflowAvailableWidth;\n if (isXAxis) {\n availableWidth = min(\n // Maximum clipping viewport width\n width - overflow.right - overflow.left, overflowAvailableWidth);\n } else {\n availableHeight = min(\n // Maximum clipping viewport height\n height - overflow.bottom - overflow.top, overflowAvailableHeight);\n }\n if (!state.middlewareData.shift && !alignment) {\n const xMin = max(overflow.left, 0);\n const xMax = max(overflow.right, 0);\n const yMin = max(overflow.top, 0);\n const yMax = max(overflow.bottom, 0);\n if (isXAxis) {\n availableWidth = width - 2 * (xMin !== 0 || xMax !== 0 ? xMin + xMax : max(overflow.left, overflow.right));\n } else {\n availableHeight = height - 2 * (yMin !== 0 || yMax !== 0 ? yMin + yMax : max(overflow.top, overflow.bottom));\n }\n }\n await apply({\n ...state,\n availableWidth,\n availableHeight\n });\n const nextDimensions = await platform.getDimensions(elements.floating);\n if (width !== nextDimensions.width || height !== nextDimensions.height) {\n return {\n reset: {\n rects: true\n }\n };\n }\n return {};\n }\n };\n};\n\nexport { arrow, autoPlacement, computePosition, detectOverflow, flip, hide, inline, limitShift, offset, rectToClientRect, shift, size };\n","import { rectToClientRect, computePosition as computePosition$1 } from '@floating-ui/core';\nexport { arrow, autoPlacement, detectOverflow, flip, hide, inline, limitShift, offset, shift, size } from '@floating-ui/core';\n\nfunction getWindow(node) {\n var _node$ownerDocument;\n return ((_node$ownerDocument = node.ownerDocument) == null ? void 0 : _node$ownerDocument.defaultView) || window;\n}\n\nfunction getComputedStyle$1(element) {\n return getWindow(element).getComputedStyle(element);\n}\n\nfunction isNode(value) {\n return value instanceof getWindow(value).Node;\n}\nfunction getNodeName(node) {\n return isNode(node) ? (node.nodeName || '').toLowerCase() : '';\n}\n\nlet uaString;\nfunction getUAString() {\n if (uaString) {\n return uaString;\n }\n const uaData = navigator.userAgentData;\n if (uaData && Array.isArray(uaData.brands)) {\n uaString = uaData.brands.map(item => item.brand + \"/\" + item.version).join(' ');\n return uaString;\n }\n return navigator.userAgent;\n}\n\nfunction isHTMLElement(value) {\n return value instanceof getWindow(value).HTMLElement;\n}\nfunction isElement(value) {\n return value instanceof getWindow(value).Element;\n}\nfunction isShadowRoot(node) {\n // Browsers without `ShadowRoot` support.\n if (typeof ShadowRoot === 'undefined') {\n return false;\n }\n const OwnElement = getWindow(node).ShadowRoot;\n return node instanceof OwnElement || node instanceof ShadowRoot;\n}\nfunction isOverflowElement(element) {\n const {\n overflow,\n overflowX,\n overflowY,\n display\n } = getComputedStyle$1(element);\n return /auto|scroll|overlay|hidden|clip/.test(overflow + overflowY + overflowX) && !['inline', 'contents'].includes(display);\n}\nfunction isTableElement(element) {\n return ['table', 'td', 'th'].includes(getNodeName(element));\n}\nfunction isContainingBlock(element) {\n // TODO: Try to use feature detection here instead.\n const isFirefox = /firefox/i.test(getUAString());\n const css = getComputedStyle$1(element);\n const backdropFilter = css.backdropFilter || css.WebkitBackdropFilter;\n\n // This is non-exhaustive but covers the most common CSS properties that\n // create a containing block.\n // https://developer.mozilla.org/en-US/docs/Web/CSS/Containing_block#identifying_the_containing_block\n 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(value => {\n // Add type check for old browsers.\n const contain = css.contain;\n return contain != null ? contain.includes(value) : false;\n });\n}\n\n/**\n * Determines whether or not `.getBoundingClientRect()` is affected by visual\n * viewport offsets. In Safari, the `x`/`y` offsets are values relative to the\n * visual viewport, while in other engines, they are values relative to the\n * layout viewport.\n */\nfunction isClientRectVisualViewportBased() {\n // TODO: Try to use feature detection here instead. Feature detection for\n // this can fail in various ways, making the userAgent check the most\n // reliable:\n // • Always-visible scrollbar or not\n // • Width of \n\n // Is Safari.\n return /^((?!chrome|android).)*safari/i.test(getUAString());\n}\nfunction isLastTraversableNode(node) {\n return ['html', 'body', '#document'].includes(getNodeName(node));\n}\n\nconst min = Math.min;\nconst max = Math.max;\nconst round = Math.round;\n\nfunction getCssDimensions(element) {\n const css = getComputedStyle$1(element);\n let width = parseFloat(css.width);\n let height = parseFloat(css.height);\n const hasOffset = isHTMLElement(element);\n const offsetWidth = hasOffset ? element.offsetWidth : width;\n const offsetHeight = hasOffset ? element.offsetHeight : height;\n const shouldFallback = round(width) !== offsetWidth || round(height) !== offsetHeight;\n if (shouldFallback) {\n width = offsetWidth;\n height = offsetHeight;\n }\n return {\n width,\n height,\n fallback: shouldFallback\n };\n}\n\nfunction unwrapElement(element) {\n return !isElement(element) ? element.contextElement : element;\n}\n\nconst FALLBACK_SCALE = {\n x: 1,\n y: 1\n};\nfunction getScale(element) {\n const domElement = unwrapElement(element);\n if (!isHTMLElement(domElement)) {\n return FALLBACK_SCALE;\n }\n const rect = domElement.getBoundingClientRect();\n const {\n width,\n height,\n fallback\n } = getCssDimensions(domElement);\n let x = (fallback ? round(rect.width) : rect.width) / width;\n let y = (fallback ? round(rect.height) : rect.height) / height;\n\n // 0, NaN, or Infinity should always fallback to 1.\n\n if (!x || !Number.isFinite(x)) {\n x = 1;\n }\n if (!y || !Number.isFinite(y)) {\n y = 1;\n }\n return {\n x,\n y\n };\n}\n\nfunction getBoundingClientRect(element, includeScale, isFixedStrategy, offsetParent) {\n var _win$visualViewport, _win$visualViewport2;\n if (includeScale === void 0) {\n includeScale = false;\n }\n if (isFixedStrategy === void 0) {\n isFixedStrategy = false;\n }\n const clientRect = element.getBoundingClientRect();\n const domElement = unwrapElement(element);\n let scale = FALLBACK_SCALE;\n if (includeScale) {\n if (offsetParent) {\n if (isElement(offsetParent)) {\n scale = getScale(offsetParent);\n }\n } else {\n scale = getScale(element);\n }\n }\n const win = domElement ? getWindow(domElement) : window;\n const addVisualOffsets = isClientRectVisualViewportBased() && isFixedStrategy;\n let x = (clientRect.left + (addVisualOffsets ? ((_win$visualViewport = win.visualViewport) == null ? void 0 : _win$visualViewport.offsetLeft) || 0 : 0)) / scale.x;\n let y = (clientRect.top + (addVisualOffsets ? ((_win$visualViewport2 = win.visualViewport) == null ? void 0 : _win$visualViewport2.offsetTop) || 0 : 0)) / scale.y;\n let width = clientRect.width / scale.x;\n let height = clientRect.height / scale.y;\n if (domElement) {\n const win = getWindow(domElement);\n const offsetWin = offsetParent && isElement(offsetParent) ? getWindow(offsetParent) : offsetParent;\n let currentIFrame = win.frameElement;\n while (currentIFrame && offsetParent && offsetWin !== win) {\n const iframeScale = getScale(currentIFrame);\n const iframeRect = currentIFrame.getBoundingClientRect();\n const css = getComputedStyle(currentIFrame);\n iframeRect.x += (currentIFrame.clientLeft + parseFloat(css.paddingLeft)) * iframeScale.x;\n iframeRect.y += (currentIFrame.clientTop + parseFloat(css.paddingTop)) * iframeScale.y;\n x *= iframeScale.x;\n y *= iframeScale.y;\n width *= iframeScale.x;\n height *= iframeScale.y;\n x += iframeRect.x;\n y += iframeRect.y;\n currentIFrame = getWindow(currentIFrame).frameElement;\n }\n }\n return rectToClientRect({\n width,\n height,\n x,\n y\n });\n}\n\nfunction getDocumentElement(node) {\n return ((isNode(node) ? node.ownerDocument : node.document) || window.document).documentElement;\n}\n\nfunction getNodeScroll(element) {\n if (isElement(element)) {\n return {\n scrollLeft: element.scrollLeft,\n scrollTop: element.scrollTop\n };\n }\n return {\n scrollLeft: element.pageXOffset,\n scrollTop: element.pageYOffset\n };\n}\n\nfunction convertOffsetParentRelativeRectToViewportRelativeRect(_ref) {\n let {\n rect,\n offsetParent,\n strategy\n } = _ref;\n const isOffsetParentAnElement = isHTMLElement(offsetParent);\n const documentElement = getDocumentElement(offsetParent);\n if (offsetParent === documentElement) {\n return rect;\n }\n let scroll = {\n scrollLeft: 0,\n scrollTop: 0\n };\n let scale = {\n x: 1,\n y: 1\n };\n const offsets = {\n x: 0,\n y: 0\n };\n if (isOffsetParentAnElement || !isOffsetParentAnElement && strategy !== 'fixed') {\n if (getNodeName(offsetParent) !== 'body' || isOverflowElement(documentElement)) {\n scroll = getNodeScroll(offsetParent);\n }\n if (isHTMLElement(offsetParent)) {\n const offsetRect = getBoundingClientRect(offsetParent);\n scale = getScale(offsetParent);\n offsets.x = offsetRect.x + offsetParent.clientLeft;\n offsets.y = offsetRect.y + offsetParent.clientTop;\n }\n }\n return {\n width: rect.width * scale.x,\n height: rect.height * scale.y,\n x: rect.x * scale.x - scroll.scrollLeft * scale.x + offsets.x,\n y: rect.y * scale.y - scroll.scrollTop * scale.y + offsets.y\n };\n}\n\nfunction getWindowScrollBarX(element) {\n // If has a CSS width greater than the viewport, then this will be\n // incorrect for RTL.\n return getBoundingClientRect(getDocumentElement(element)).left + getNodeScroll(element).scrollLeft;\n}\n\n// Gets the entire size of the scrollable document area, even extending outside\n// of the `` and `
` rect bounds if horizontally scrollable.\nfunction getDocumentRect(element) {\n const html = getDocumentElement(element);\n const scroll = getNodeScroll(element);\n const body = element.ownerDocument.body;\n const width = max(html.scrollWidth, html.clientWidth, body.scrollWidth, body.clientWidth);\n const height = max(html.scrollHeight, html.clientHeight, body.scrollHeight, body.clientHeight);\n let x = -scroll.scrollLeft + getWindowScrollBarX(element);\n const y = -scroll.scrollTop;\n if (getComputedStyle$1(body).direction === 'rtl') {\n x += max(html.clientWidth, body.clientWidth) - width;\n }\n return {\n width,\n height,\n x,\n y\n };\n}\n\nfunction getParentNode(node) {\n if (getNodeName(node) === 'html') {\n return node;\n }\n const result =\n // Step into the shadow DOM of the parent of a slotted node.\n node.assignedSlot ||\n // DOM Element detected.\n node.parentNode ||\n // ShadowRoot detected.\n isShadowRoot(node) && node.host ||\n // Fallback.\n getDocumentElement(node);\n return isShadowRoot(result) ? result.host : result;\n}\n\nfunction getNearestOverflowAncestor(node) {\n const parentNode = getParentNode(node);\n if (isLastTraversableNode(parentNode)) {\n // `getParentNode` will never return a `Document` due to the fallback\n // check, so it's either the or element.\n return parentNode.ownerDocument.body;\n }\n if (isHTMLElement(parentNode) && isOverflowElement(parentNode)) {\n return parentNode;\n }\n return getNearestOverflowAncestor(parentNode);\n}\n\nfunction getOverflowAncestors(node, list) {\n var _node$ownerDocument;\n if (list === void 0) {\n list = [];\n }\n const scrollableAncestor = getNearestOverflowAncestor(node);\n const isBody = scrollableAncestor === ((_node$ownerDocument = node.ownerDocument) == null ? void 0 : _node$ownerDocument.body);\n const win = getWindow(scrollableAncestor);\n if (isBody) {\n return list.concat(win, win.visualViewport || [], isOverflowElement(scrollableAncestor) ? scrollableAncestor : []);\n }\n return list.concat(scrollableAncestor, getOverflowAncestors(scrollableAncestor));\n}\n\nfunction getViewportRect(element, strategy) {\n const win = getWindow(element);\n const html = getDocumentElement(element);\n const visualViewport = win.visualViewport;\n let width = html.clientWidth;\n let height = html.clientHeight;\n let x = 0;\n let y = 0;\n if (visualViewport) {\n width = visualViewport.width;\n height = visualViewport.height;\n const visualViewportBased = isClientRectVisualViewportBased();\n if (!visualViewportBased || visualViewportBased && strategy === 'fixed') {\n x = visualViewport.offsetLeft;\n y = visualViewport.offsetTop;\n }\n }\n return {\n width,\n height,\n x,\n y\n };\n}\n\n// Returns the inner client rect, subtracting scrollbars if present.\nfunction getInnerBoundingClientRect(element, strategy) {\n const clientRect = getBoundingClientRect(element, true, strategy === 'fixed');\n const top = clientRect.top + element.clientTop;\n const left = clientRect.left + element.clientLeft;\n const scale = isHTMLElement(element) ? getScale(element) : {\n x: 1,\n y: 1\n };\n const width = element.clientWidth * scale.x;\n const height = element.clientHeight * scale.y;\n const x = left * scale.x;\n const y = top * scale.y;\n return {\n width,\n height,\n x,\n y\n };\n}\nfunction getClientRectFromClippingAncestor(element, clippingAncestor, strategy) {\n let rect;\n if (clippingAncestor === 'viewport') {\n rect = getViewportRect(element, strategy);\n } else if (clippingAncestor === 'document') {\n rect = getDocumentRect(getDocumentElement(element));\n } else if (isElement(clippingAncestor)) {\n rect = getInnerBoundingClientRect(clippingAncestor, strategy);\n } else {\n const mutableRect = {\n ...clippingAncestor\n };\n if (isClientRectVisualViewportBased()) {\n var _win$visualViewport, _win$visualViewport2;\n const win = getWindow(element);\n mutableRect.x -= ((_win$visualViewport = win.visualViewport) == null ? void 0 : _win$visualViewport.offsetLeft) || 0;\n mutableRect.y -= ((_win$visualViewport2 = win.visualViewport) == null ? void 0 : _win$visualViewport2.offsetTop) || 0;\n }\n rect = mutableRect;\n }\n return rectToClientRect(rect);\n}\n\n// A \"clipping ancestor\" is an `overflow` element with the characteristic of\n// clipping (or hiding) child elements. This returns all clipping ancestors\n// of the given element up the tree.\nfunction getClippingElementAncestors(element, cache) {\n const cachedResult = cache.get(element);\n if (cachedResult) {\n return cachedResult;\n }\n let result = getOverflowAncestors(element).filter(el => isElement(el) && getNodeName(el) !== 'body');\n let currentContainingBlockComputedStyle = null;\n const elementIsFixed = getComputedStyle$1(element).position === 'fixed';\n let currentNode = elementIsFixed ? getParentNode(element) : element;\n\n // https://developer.mozilla.org/en-US/docs/Web/CSS/Containing_block#identifying_the_containing_block\n while (isElement(currentNode) && !isLastTraversableNode(currentNode)) {\n const computedStyle = getComputedStyle$1(currentNode);\n const containingBlock = isContainingBlock(currentNode);\n const shouldIgnoreCurrentNode = computedStyle.position === 'fixed';\n if (shouldIgnoreCurrentNode) {\n currentContainingBlockComputedStyle = null;\n } else {\n const shouldDropCurrentNode = elementIsFixed ? !containingBlock && !currentContainingBlockComputedStyle : !containingBlock && computedStyle.position === 'static' && !!currentContainingBlockComputedStyle && ['absolute', 'fixed'].includes(currentContainingBlockComputedStyle.position);\n if (shouldDropCurrentNode) {\n // Drop non-containing blocks.\n result = result.filter(ancestor => ancestor !== currentNode);\n } else {\n // Record last containing block for next iteration.\n currentContainingBlockComputedStyle = computedStyle;\n }\n }\n currentNode = getParentNode(currentNode);\n }\n cache.set(element, result);\n return result;\n}\n\n// Gets the maximum area that the element is visible in due to any number of\n// clipping ancestors.\nfunction getClippingRect(_ref) {\n let {\n element,\n boundary,\n rootBoundary,\n strategy\n } = _ref;\n const elementClippingAncestors = boundary === 'clippingAncestors' ? getClippingElementAncestors(element, this._c) : [].concat(boundary);\n const clippingAncestors = [...elementClippingAncestors, rootBoundary];\n const firstClippingAncestor = clippingAncestors[0];\n const clippingRect = clippingAncestors.reduce((accRect, clippingAncestor) => {\n const rect = getClientRectFromClippingAncestor(element, clippingAncestor, strategy);\n accRect.top = max(rect.top, accRect.top);\n accRect.right = min(rect.right, accRect.right);\n accRect.bottom = min(rect.bottom, accRect.bottom);\n accRect.left = max(rect.left, accRect.left);\n return accRect;\n }, getClientRectFromClippingAncestor(element, firstClippingAncestor, strategy));\n return {\n width: clippingRect.right - clippingRect.left,\n height: clippingRect.bottom - clippingRect.top,\n x: clippingRect.left,\n y: clippingRect.top\n };\n}\n\nfunction getDimensions(element) {\n return getCssDimensions(element);\n}\n\nfunction getTrueOffsetParent(element, polyfill) {\n if (!isHTMLElement(element) || getComputedStyle$1(element).position === 'fixed') {\n return null;\n }\n if (polyfill) {\n return polyfill(element);\n }\n return element.offsetParent;\n}\nfunction getContainingBlock(element) {\n let currentNode = getParentNode(element);\n while (isHTMLElement(currentNode) && !isLastTraversableNode(currentNode)) {\n if (isContainingBlock(currentNode)) {\n return currentNode;\n } else {\n currentNode = getParentNode(currentNode);\n }\n }\n return null;\n}\n\n// Gets the closest ancestor positioned element. Handles some edge cases,\n// such as table ancestors and cross browser bugs.\nfunction getOffsetParent(element, polyfill) {\n const window = getWindow(element);\n if (!isHTMLElement(element)) {\n return window;\n }\n let offsetParent = getTrueOffsetParent(element, polyfill);\n while (offsetParent && isTableElement(offsetParent) && getComputedStyle$1(offsetParent).position === 'static') {\n offsetParent = getTrueOffsetParent(offsetParent, polyfill);\n }\n if (offsetParent && (getNodeName(offsetParent) === 'html' || getNodeName(offsetParent) === 'body' && getComputedStyle$1(offsetParent).position === 'static' && !isContainingBlock(offsetParent))) {\n return window;\n }\n return offsetParent || getContainingBlock(element) || window;\n}\n\nfunction getRectRelativeToOffsetParent(element, offsetParent, strategy) {\n const isOffsetParentAnElement = isHTMLElement(offsetParent);\n const documentElement = getDocumentElement(offsetParent);\n const rect = getBoundingClientRect(element, true, strategy === 'fixed', offsetParent);\n let scroll = {\n scrollLeft: 0,\n scrollTop: 0\n };\n const offsets = {\n x: 0,\n y: 0\n };\n if (isOffsetParentAnElement || !isOffsetParentAnElement && strategy !== 'fixed') {\n if (getNodeName(offsetParent) !== 'body' || isOverflowElement(documentElement)) {\n scroll = getNodeScroll(offsetParent);\n }\n if (isHTMLElement(offsetParent)) {\n const offsetRect = getBoundingClientRect(offsetParent, true);\n offsets.x = offsetRect.x + offsetParent.clientLeft;\n offsets.y = offsetRect.y + offsetParent.clientTop;\n } else if (documentElement) {\n offsets.x = getWindowScrollBarX(documentElement);\n }\n }\n return {\n x: rect.left + scroll.scrollLeft - offsets.x,\n y: rect.top + scroll.scrollTop - offsets.y,\n width: rect.width,\n height: rect.height\n };\n}\n\nconst platform = {\n getClippingRect,\n convertOffsetParentRelativeRectToViewportRelativeRect,\n isElement,\n getDimensions,\n getOffsetParent,\n getDocumentElement,\n getScale,\n async getElementRects(_ref) {\n let {\n reference,\n floating,\n strategy\n } = _ref;\n const getOffsetParentFn = this.getOffsetParent || getOffsetParent;\n const getDimensionsFn = this.getDimensions;\n return {\n reference: getRectRelativeToOffsetParent(reference, await getOffsetParentFn(floating), strategy),\n floating: {\n x: 0,\n y: 0,\n ...(await getDimensionsFn(floating))\n }\n };\n },\n getClientRects: element => Array.from(element.getClientRects()),\n isRTL: element => getComputedStyle$1(element).direction === 'rtl'\n};\n\n/**\n * Automatically updates the position of the floating element when necessary.\n * Should only be called when the floating element is mounted on the DOM or\n * visible on the screen.\n * @returns cleanup function that should be invoked when the floating element is\n * removed from the DOM or hidden from the screen.\n * @see https://floating-ui.com/docs/autoUpdate\n */\nfunction autoUpdate(reference, floating, update, options) {\n if (options === void 0) {\n options = {};\n }\n const {\n ancestorScroll: _ancestorScroll = true,\n ancestorResize = true,\n elementResize = true,\n animationFrame = false\n } = options;\n const ancestorScroll = _ancestorScroll && !animationFrame;\n const ancestors = ancestorScroll || ancestorResize ? [...(isElement(reference) ? getOverflowAncestors(reference) : reference.contextElement ? getOverflowAncestors(reference.contextElement) : []), ...getOverflowAncestors(floating)] : [];\n ancestors.forEach(ancestor => {\n ancestorScroll && ancestor.addEventListener('scroll', update, {\n passive: true\n });\n ancestorResize && ancestor.addEventListener('resize', update);\n });\n let observer = null;\n if (elementResize) {\n observer = new ResizeObserver(() => {\n update();\n });\n isElement(reference) && !animationFrame && observer.observe(reference);\n if (!isElement(reference) && reference.contextElement && !animationFrame) {\n observer.observe(reference.contextElement);\n }\n observer.observe(floating);\n }\n let frameId;\n let prevRefRect = animationFrame ? getBoundingClientRect(reference) : null;\n if (animationFrame) {\n frameLoop();\n }\n function frameLoop() {\n const nextRefRect = getBoundingClientRect(reference);\n if (prevRefRect && (nextRefRect.x !== prevRefRect.x || nextRefRect.y !== prevRefRect.y || nextRefRect.width !== prevRefRect.width || nextRefRect.height !== prevRefRect.height)) {\n update();\n }\n prevRefRect = nextRefRect;\n frameId = requestAnimationFrame(frameLoop);\n }\n update();\n return () => {\n var _observer;\n ancestors.forEach(ancestor => {\n ancestorScroll && ancestor.removeEventListener('scroll', update);\n ancestorResize && ancestor.removeEventListener('resize', update);\n });\n (_observer = observer) == null ? void 0 : _observer.disconnect();\n observer = null;\n if (animationFrame) {\n cancelAnimationFrame(frameId);\n }\n };\n}\n\n/**\n * Computes the `x` and `y` coordinates that will place the floating element\n * next to a reference element when it is given a certain CSS positioning\n * strategy.\n */\nconst computePosition = (reference, floating, options) => {\n // This caches the expensive `getClippingElementAncestors` function so that\n // multiple lifecycle resets re-use the same result. It only lives for a\n // single call. If other functions become expensive, we can add them as well.\n const cache = new Map();\n const mergedOptions = {\n platform,\n ...options\n };\n const platformWithCache = {\n ...mergedOptions.platform,\n _c: cache\n };\n return computePosition$1(reference, floating, {\n ...mergedOptions,\n platform: platformWithCache\n });\n};\n\nexport { autoUpdate, computePosition, getOverflowAncestors, platform };\n","import merge from 'deepmerge';\nimport { shouldCenterStep } from './general';\nimport {\n autoUpdate,\n arrow,\n computePosition,\n flip,\n limitShift,\n shift\n} from '@floating-ui/dom';\n\n/**\n * Floating UI Options\n *\n * @typedef {object} FloatingUIOptions\n */\n\n/**\n * Determines options for the tooltip and initializes event listeners.\n *\n * @param {Step} step The step instance\n *\n * @return {FloatingUIOptions}\n */\nexport function setupTooltip(step) {\n if (step.cleanup) {\n step.cleanup();\n }\n\n const attachToOptions = step._getResolvedAttachToOptions();\n\n let target = attachToOptions.element;\n const floatingUIOptions = getFloatingUIOptions(attachToOptions, step);\n const shouldCenter = shouldCenterStep(attachToOptions);\n\n if (shouldCenter) {\n target = document.body;\n const content = step.shepherdElementComponent.getElement();\n content.classList.add('shepherd-centered');\n }\n\n step.cleanup = autoUpdate(target, step.el, () => {\n // The element might have already been removed by the end of the tour.\n if (!step.el) {\n step.cleanup();\n return;\n }\n\n setPosition(target, step, floatingUIOptions, shouldCenter);\n });\n\n step.target = attachToOptions.element;\n\n return floatingUIOptions;\n}\n\n/**\n * Merge tooltip options handling nested keys.\n *\n * @param tourOptions - The default tour options.\n * @param options - Step specific options.\n *\n * @return {floatingUIOptions: FloatingUIOptions}\n */\nexport function mergeTooltipConfig(tourOptions, options) {\n return {\n floatingUIOptions: merge(\n tourOptions.floatingUIOptions || {},\n options.floatingUIOptions || {}\n )\n };\n}\n\n/**\n * Cleanup function called when the step is closed/destroyed.\n *\n * @param {Step} step\n */\nexport function destroyTooltip(step) {\n if (step.cleanup) {\n step.cleanup();\n }\n\n step.cleanup = null;\n}\n\n/**\n *\n * @return {Promise<*>}\n */\nfunction setPosition(target, step, floatingUIOptions, shouldCenter) {\n return (\n computePosition(target, step.el, floatingUIOptions)\n .then(floatingUIposition(step, shouldCenter))\n // Wait before forcing focus.\n .then(\n (step) =>\n new Promise((resolve) => {\n setTimeout(() => resolve(step), 300);\n })\n )\n // Replaces focusAfterRender modifier.\n .then((step) => {\n if (step && step.el) {\n step.el.focus({ preventScroll: true });\n }\n })\n );\n}\n\n/**\n *\n * @param step\n * @param shouldCenter\n * @return {function({x: *, y: *, placement: *, middlewareData: *}): Promise