/** * @popperjs/core v2.0.5 - MIT License */ (function (global, factory) { typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) : typeof define === 'function' && define.amd ? define(['exports'], factory) : (global = global || self, factory(global.Popper = {})); }(this, (function (exports) { 'use strict'; function getBoundingClientRect(element) { var rect = element.getBoundingClientRect(); return { width: rect.width, height: rect.height, top: rect.top, right: rect.right, bottom: rect.bottom, left: rect.left, x: rect.left, y: rect.top }; } /*:: import type { Window } from '../types'; */ /*:: declare function getWindow(node: Node | Window): Window; */ function getWindow(node) { if (node.toString() !== '[object Window]') { var ownerDocument = node.ownerDocument; return ownerDocument ? ownerDocument.defaultView : window; } return node; } function getWindowScroll(node) { var win = getWindow(node); var scrollLeft = win.pageXOffset; var scrollTop = win.pageYOffset; return { scrollLeft: scrollLeft, scrollTop: scrollTop }; } /*:: declare function isElement(node: mixed): boolean %checks(node instanceof Element); */ function isElement(node) { var OwnElement = getWindow(node).Element; return node instanceof OwnElement; } /*:: declare function isHTMLElement(node: mixed): boolean %checks(node instanceof HTMLElement); */ function isHTMLElement(node) { var OwnElement = getWindow(node).HTMLElement; return node instanceof OwnElement; } function getHTMLElementScroll(element) { return { scrollLeft: element.scrollLeft, scrollTop: element.scrollTop }; } function getNodeScroll(node) { if (node === getWindow(node) || !isHTMLElement(node)) { return getWindowScroll(node); } else { return getHTMLElementScroll(node); } } function getNodeName(element) { return element ? (element.nodeName || '').toLowerCase() : null; } function getDocumentElement(element) { // $FlowFixMe: assume body is always available return (isElement(element) ? element.ownerDocument : element.document).documentElement; } function getWindowScrollBarX(element) { // If has a CSS width greater than the viewport, then this will be // incorrect for RTL. // Popper 1 is broken in this case and never had a bug report so let's assume // it's not an issue. I don't think anyone ever specifies width on // anyway. // Browsers where the left scrollbar doesn't cause an issue report `0` for // this (e.g. Edge 2019, IE11, Safari) return getBoundingClientRect(getDocumentElement(element)).left + getWindowScroll(element).scrollLeft; } // Composite means it takes into account transforms as well as layout. function getCompositeRect(elementOrVirtualElement, offsetParent, isFixed) { if (isFixed === void 0) { isFixed = false; } var documentElement; var rect = getBoundingClientRect(elementOrVirtualElement); var scroll = { scrollLeft: 0, scrollTop: 0 }; var offsets = { x: 0, y: 0 }; if (!isFixed) { if (getNodeName(offsetParent) !== 'body') { scroll = getNodeScroll(offsetParent); } if (isHTMLElement(offsetParent)) { offsets = getBoundingClientRect(offsetParent); offsets.x += offsetParent.clientLeft; offsets.y += offsetParent.clientTop; } else if (documentElement = getDocumentElement(offsetParent)) { offsets.x = getWindowScrollBarX(documentElement); } } return { x: rect.left + scroll.scrollLeft - offsets.x, y: rect.top + scroll.scrollTop - offsets.y, width: rect.width, height: rect.height }; } // Returns the layout rect of an element relative to its offsetParent. Layout // means it doesn't take into account transforms. function getLayoutRect(element) { return { x: element.offsetLeft, y: element.offsetTop, width: element.offsetWidth, height: element.offsetHeight }; } function getParentNode(element) { if (getNodeName(element) === 'html') { return element; } return element.parentNode || // DOM Element detected // $FlowFixMe: need a better way to handle this... element.host || // ShadowRoot detected document.ownerDocument || // Fallback to ownerDocument if available document.documentElement // Or to documentElement if everything else fails ; } function getComputedStyle(element) { return getWindow(element).getComputedStyle(element); } function getScrollParent(node) { if (['html', 'body', '#document'].indexOf(getNodeName(node)) >= 0) { // $FlowFixMe: assume body is always available return node.ownerDocument.body; } if (isHTMLElement(node)) { // Firefox wants us to check `-x` and `-y` variations as well var _getComputedStyle = getComputedStyle(node), overflow = _getComputedStyle.overflow, overflowX = _getComputedStyle.overflowX, overflowY = _getComputedStyle.overflowY; if (/auto|scroll|overlay|hidden/.test(overflow + overflowY + overflowX)) { return node; } } return getScrollParent(getParentNode(node)); } function listScrollParents(element, list) { if (list === void 0) { list = []; } var scrollParent = getScrollParent(element); var isBody = getNodeName(scrollParent) === 'body'; var target = isBody ? getWindow(scrollParent) : scrollParent; var updatedList = list.concat(target); return isBody ? updatedList : // $FlowFixMe: isBody tells us target will be an HTMLElement here updatedList.concat(listScrollParents(getParentNode(target))); } function isTableElement(element) { return ['table', 'td', 'th'].indexOf(getNodeName(element)) >= 0; } var isFirefox = function isFirefox() { return typeof window.InstallTrigger !== 'undefined'; }; function getTrueOffsetParent(element) { var offsetParent; if (!isHTMLElement(element) || !(offsetParent = element.offsetParent) || // https://github.com/popperjs/popper.js/issues/837 isFirefox() && getComputedStyle(offsetParent).position === 'fixed') { return null; } return offsetParent; } function getOffsetParent(element) { var window = getWindow(element); var offsetParent = getTrueOffsetParent(element); // Find the nearest non-table offsetParent while (offsetParent && isTableElement(offsetParent)) { offsetParent = getTrueOffsetParent(offsetParent); } if (offsetParent && getNodeName(offsetParent) === 'body' && getComputedStyle(offsetParent).position === 'static') { return window; } return offsetParent || window; } var top = 'top'; var bottom = 'bottom'; var right = 'right'; var left = 'left'; var auto = 'auto'; var basePlacements = [top, bottom, right, left]; var start = 'start'; var end = 'end'; var clippingParents = 'clippingParents'; var viewport = 'viewport'; var popper = 'popper'; var reference = 'reference'; var variationPlacements = /*#__PURE__*/ basePlacements.reduce(function (acc, placement) { return acc.concat([placement + "-" + start, placement + "-" + end]); }, []); var placements = /*#__PURE__*/ [].concat(basePlacements, [auto]).reduce(function (acc, placement) { return acc.concat([placement, placement + "-" + start, placement + "-" + end]); }, []); // modifiers that need to read the DOM var beforeRead = 'beforeRead'; var read = 'read'; var afterRead = 'afterRead'; // pure-logic modifiers var beforeMain = 'beforeMain'; var main = 'main'; var afterMain = 'afterMain'; // modifier with the purpose to write to the DOM (or write into a framework state) var beforeWrite = 'beforeWrite'; var write = 'write'; var afterWrite = 'afterWrite'; var modifierPhases = [beforeRead, read, afterRead, beforeMain, main, afterMain, beforeWrite, write, afterWrite]; function order(modifiers) { var map = new Map(); var visited = new Set(); var result = []; modifiers.forEach(function (modifier) { map.set(modifier.name, modifier); }); // On visiting object, check for its dependencies and visit them recursively function sort(modifier) { visited.add(modifier.name); var requires = [].concat(modifier.requires || [], modifier.requiresIfExists || []); requires.forEach(function (dep) { if (!visited.has(dep)) { var depModifier = map.get(dep); if (depModifier) { sort(depModifier); } } }); result.push(modifier); } modifiers.forEach(function (modifier) { if (!visited.has(modifier.name)) { // check for visited object sort(modifier); } }); return result; } function orderModifiers(modifiers) { // order based on dependencies var orderedModifiers = order(modifiers); // order based on phase return modifierPhases.reduce(function (acc, phase) { return acc.concat(orderedModifiers.filter(function (modifier) { return modifier.phase === phase; })); }, []); } function debounce(fn) { var pending; return function () { if (!pending) { pending = new Promise(function (resolve) { Promise.resolve().then(function () { pending = undefined; resolve(fn()); }); }); } return pending; }; } function format(str) { for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) { args[_key - 1] = arguments[_key]; } return [].concat(args).reduce(function (p, c) { return p.replace(/%s/, c); }, str); } var INVALID_MODIFIER_ERROR = 'Popper: modifier "%s" provided an invalid %s property, expected %s but got %s'; var MISSING_DEPENDENCY_ERROR = 'Popper: modifier "%s" requires "%s", but "%s" modifier is not available'; var VALID_PROPERTIES = ['name', 'enabled', 'phase', 'fn', 'effect', 'requires', 'options']; function validateModifiers(modifiers) { modifiers.forEach(function (modifier) { Object.keys(modifier).forEach(function (key) { switch (key) { case 'name': if (typeof modifier.name !== 'string') { console.error(format(INVALID_MODIFIER_ERROR, String(modifier.name), '"name"', '"string"', "\"" + String(modifier.name) + "\"")); } break; case 'enabled': if (typeof modifier.enabled !== 'boolean') { console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"enabled"', '"boolean"', "\"" + String(modifier.enabled) + "\"")); } case 'phase': if (modifierPhases.indexOf(modifier.phase) < 0) { console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"phase"', "either " + modifierPhases.join(', '), "\"" + String(modifier.phase) + "\"")); } break; case 'fn': if (typeof modifier.fn !== 'function') { console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"fn"', '"function"', "\"" + String(modifier.fn) + "\"")); } break; case 'effect': if (typeof modifier.effect !== 'function') { console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"effect"', '"function"', "\"" + String(modifier.fn) + "\"")); } break; case 'requires': if (!Array.isArray(modifier.requires)) { console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"requires"', '"array"', "\"" + String(modifier.requires) + "\"")); } break; case 'requiresIfExists': if (!Array.isArray(modifier.requiresIfExists)) { console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"requiresIfExists"', '"array"', "\"" + String(modifier.requiresIfExists) + "\"")); } break; case 'options': case 'data': break; default: console.error("PopperJS: an invalid property has been provided to the \"" + modifier.name + "\" modifier, valid properties are " + VALID_PROPERTIES.map(function (s) { return "\"" + s + "\""; }).join(', ') + "; but \"" + key + "\" was provided."); } modifier.requires && modifier.requires.forEach(function (requirement) { if (modifiers.find(function (mod) { return mod.name === requirement; }) == null) { console.error(format(MISSING_DEPENDENCY_ERROR, String(modifier.name), requirement, requirement)); } }); }); }); } function uniqueBy(arr, fn) { var identifiers = new Set(); return arr.filter(function (item) { var identifier = fn(item); if (!identifiers.has(identifier)) { identifiers.add(identifier); return true; } }); } function getBasePlacement(placement) { return placement.split('-')[0]; } var INVALID_ELEMENT_ERROR = 'Popper: Invalid reference or popper argument provided to Popper, they must be either a valid DOM element, virtual element, or a jQuery-wrapped DOM element.'; var INFINITE_LOOP_ERROR = 'Popper: An infinite loop in the modifiers cycle has been detected! The cycle has been interrupted to prevent a browser crash.'; var DEFAULT_OPTIONS = { placement: 'bottom', modifiers: [], strategy: 'absolute' }; function areValidElements() { for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) { args[_key] = arguments[_key]; } return !args.some(function (element) { return !(element && typeof element.getBoundingClientRect === 'function'); }); } function popperGenerator(generatorOptions) { if (generatorOptions === void 0) { generatorOptions = {}; } var _generatorOptions = generatorOptions, _generatorOptions$def = _generatorOptions.defaultModifiers, defaultModifiers = _generatorOptions$def === void 0 ? [] : _generatorOptions$def, _generatorOptions$def2 = _generatorOptions.defaultOptions, defaultOptions = _generatorOptions$def2 === void 0 ? DEFAULT_OPTIONS : _generatorOptions$def2; return function createPopper(reference, popper, options) { if (options === void 0) { options = defaultOptions; } var state = { placement: 'bottom', orderedModifiers: [], options: Object.assign({}, DEFAULT_OPTIONS, {}, defaultOptions), modifiersData: {}, elements: { reference: reference, popper: popper }, attributes: {}, styles: {} }; var effectCleanupFns = []; var isDestroyed = false; var instance = { state: state, setOptions: function setOptions(options) { cleanupModifierEffects(); state.options = Object.assign({}, defaultOptions, {}, state.options, {}, options); state.scrollParents = { reference: isElement(reference) ? listScrollParents(reference) : [], popper: listScrollParents(popper) }; // Orders the modifiers based on their dependencies and `phase` // properties var orderedModifiers = orderModifiers([].concat(state.options.modifiers.filter(function (modifier) { return !defaultModifiers.find(function (_ref) { var name = _ref.name; return name === modifier.name; }); }), defaultModifiers.map(function (defaultModifier) { return Object.assign({}, defaultModifier, {}, state.options.modifiers.find(function (_ref2) { var name = _ref2.name; return name === defaultModifier.name; })); }))); // Validate the provided modifiers so that the consumer will get warned // if one of the modifiers is invalid for any reason { var modifiers = uniqueBy([].concat(orderedModifiers, state.options.modifiers), function (_ref3) { var name = _ref3.name; return name; }); validateModifiers(modifiers); if (getBasePlacement(state.options.placement) === auto) { var flipModifier = orderedModifiers.find(function (_ref4) { var name = _ref4.name; return name === 'flip'; }); if (!flipModifier) { console.error(['Popper: "auto" placements require the "flip" modifier be', 'present and enabled to work.'].join(' ')); } } var _getComputedStyle = getComputedStyle(popper), marginTop = _getComputedStyle.marginTop, marginRight = _getComputedStyle.marginRight, marginBottom = _getComputedStyle.marginBottom, marginLeft = _getComputedStyle.marginLeft; // We no longer take into account `margins` on the popper, and it can // cause bugs with positioning, so we'll warn the consumer if ([marginTop, marginRight, marginBottom, marginLeft].some(function (margin) { return parseFloat(margin); })) { console.warn(['Popper: CSS "margin" styles cannot be used to apply padding', 'between the popper and its reference element or boundary.', 'To replicate margin, use the `offset` modifier, as well as', 'the `padding` option in the `preventOverflow` and `flip`', 'modifiers.'].join(' ')); } } // Strip out disabled modifiers state.orderedModifiers = orderedModifiers.filter(function (m) { return m.enabled; }); runModifierEffects(); return instance.update(); }, // Sync update – it will always be executed, even if not necessary. This // is useful for low frequency updates where sync behavior simplifies the // logic. // For high frequency updates (e.g. `resize` and `scroll` events), always // prefer the async Popper#update method forceUpdate: function forceUpdate() { if (isDestroyed) { return; } var _state$elements = state.elements, reference = _state$elements.reference, popper = _state$elements.popper; // Don't proceed if `reference` or `popper` are not valid elements // anymore if (!areValidElements(reference, popper)) { { console.error(INVALID_ELEMENT_ERROR); } return; } // Store the reference and popper rects to be read by modifiers state.rects = { reference: getCompositeRect(reference, getOffsetParent(popper), state.options.strategy === 'fixed'), popper: getLayoutRect(popper) }; // Modifiers have the ability to reset the current update cycle. The // most common use case for this is the `flip` modifier changing the // placement, which then needs to re-run all the modifiers, because the // logic was previously ran for the previous placement and is therefore // stale/incorrect state.reset = false; state.placement = state.options.placement; // On each update cycle, the `modifiersData` property for each modifier // is filled with the initial data specified by the modifier. This means // it doesn't persist and is fresh on each update. // To ensure persistent data, use `${name}#persistent` state.orderedModifiers.forEach(function (modifier) { return state.modifiersData[modifier.name] = Object.assign({}, modifier.data); }); var __debug_loops__ = 0; for (var index = 0; index < state.orderedModifiers.length; index++) { { __debug_loops__ += 1; if (__debug_loops__ > 100) { console.error(INFINITE_LOOP_ERROR); break; } } if (state.reset === true) { state.reset = false; index = -1; continue; } var _state$orderedModifie = state.orderedModifiers[index], fn = _state$orderedModifie.fn, _state$orderedModifie2 = _state$orderedModifie.options, _options = _state$orderedModifie2 === void 0 ? {} : _state$orderedModifie2, name = _state$orderedModifie.name; if (typeof fn === 'function') { state = fn({ state: state, options: _options, name: name, instance: instance }) || state; } } }, // Async and optimistically optimized update – it will not be executed if // not necessary (debounced to run at most once-per-tick) update: debounce(function () { return new Promise(function (resolve) { instance.forceUpdate(); resolve(state); }); }), destroy: function destroy() { cleanupModifierEffects(); isDestroyed = true; } }; if (!areValidElements(reference, popper)) { { console.error(INVALID_ELEMENT_ERROR); } return instance; } instance.setOptions(options).then(function (state) { if (!isDestroyed && options.onFirstUpdate) { options.onFirstUpdate(state); } }); // Modifiers have the ability to execute arbitrary code before the first // update cycle runs. They will be executed in the same order as the update // cycle. This is useful when a modifier adds some persistent data that // other modifiers need to use, but the modifier is run after the dependent // one. function runModifierEffects() { state.orderedModifiers.forEach(function (_ref5) { var name = _ref5.name, _ref5$options = _ref5.options, options = _ref5$options === void 0 ? {} : _ref5$options, effect = _ref5.effect; if (typeof effect === 'function') { var cleanupFn = effect({ state: state, name: name, instance: instance, options: options }); var noopFn = function noopFn() {}; effectCleanupFns.push(cleanupFn || noopFn); } }); } function cleanupModifierEffects() { effectCleanupFns.forEach(function (fn) { return fn(); }); effectCleanupFns = []; } return instance; }; } var passive = { passive: true }; function effect(_ref) { var state = _ref.state, instance = _ref.instance, options = _ref.options; var _options$scroll = options.scroll, scroll = _options$scroll === void 0 ? true : _options$scroll, _options$resize = options.resize, resize = _options$resize === void 0 ? true : _options$resize; var window = getWindow(state.elements.popper); var scrollParents = [].concat(state.scrollParents.reference, state.scrollParents.popper); if (scroll) { scrollParents.forEach(function (scrollParent) { scrollParent.addEventListener('scroll', instance.update, passive); }); } if (resize) { window.addEventListener('resize', instance.update, passive); } return function () { if (scroll) { scrollParents.forEach(function (scrollParent) { scrollParent.removeEventListener('scroll', instance.update, passive); }); } if (resize) { window.removeEventListener('resize', instance.update, passive); } }; } var eventListeners = { name: 'eventListeners', enabled: true, phase: 'write', fn: function fn() {}, effect: effect, data: {} }; function getVariation(placement) { return placement.split('-')[1]; } function getMainAxisFromPlacement(placement) { return ['top', 'bottom'].indexOf(placement) >= 0 ? 'x' : 'y'; } function computeOffsets(_ref) { var reference = _ref.reference, element = _ref.element, placement = _ref.placement; var basePlacement = placement ? getBasePlacement(placement) : null; var variation = placement ? getVariation(placement) : null; var commonX = reference.x + reference.width / 2 - element.width / 2; var commonY = reference.y + reference.height / 2 - element.height / 2; var offsets; switch (basePlacement) { case top: offsets = { x: commonX, y: reference.y - element.height }; break; case bottom: offsets = { x: commonX, y: reference.y + reference.height }; break; case right: offsets = { x: reference.x + reference.width, y: commonY }; break; case left: offsets = { x: reference.x - element.width, y: commonY }; break; default: offsets = { x: reference.x, y: reference.y }; } var mainAxis = basePlacement ? getMainAxisFromPlacement(basePlacement) : null; if (mainAxis != null) { var len = mainAxis === 'y' ? 'height' : 'width'; switch (variation) { case start: offsets[mainAxis] = Math.floor(offsets[mainAxis]) - Math.floor(reference[len] / 2 - element[len] / 2); break; case end: offsets[mainAxis] = Math.floor(offsets[mainAxis]) + Math.ceil(reference[len] / 2 - element[len] / 2); break; } } return offsets; } function popperOffsets(_ref) { var state = _ref.state, name = _ref.name; // Offsets are the actual position the popper needs to have to be // properly positioned near its reference element // This is the most basic placement, and will be adjusted by // the modifiers in the next step state.modifiersData[name] = computeOffsets({ reference: state.rects.reference, element: state.rects.popper, strategy: 'absolute', placement: state.placement }); } var popperOffsets$1 = { name: 'popperOffsets', enabled: true, phase: 'read', fn: popperOffsets, data: {} }; var unsetSides = { top: 'auto', right: 'auto', bottom: 'auto', left: 'auto' }; // Round the offsets to the nearest suitable subpixel based on the DPR. // Zooming can change the DPR, but it seems to report a value that will // cleanly divide the values into the appropriate subpixels. function roundOffsets(_ref) { var x = _ref.x, y = _ref.y; var dpr = window.devicePixelRatio || 1; return { x: Math.round(x * dpr) / dpr || 0, y: Math.round(y * dpr) / dpr || 0 }; } function mapToStyles(_ref2) { var _Object$assign2; var popper = _ref2.popper, popperRect = _ref2.popperRect, placement = _ref2.placement, offsets = _ref2.offsets, position = _ref2.position, gpuAcceleration = _ref2.gpuAcceleration, adaptive = _ref2.adaptive; var _roundOffsets = roundOffsets(offsets), x = _roundOffsets.x, y = _roundOffsets.y; var hasX = offsets.hasOwnProperty('x'); var hasY = offsets.hasOwnProperty('y'); var sideX = left; var sideY = top; if (adaptive) { var offsetParent = getOffsetParent(popper); if (offsetParent === getWindow(popper)) { offsetParent = getDocumentElement(popper); } // $FlowFixMe: force type refinement, we compare offsetParent with window above, but Flow doesn't detect it /*:: offsetParent = (offsetParent: Element); */ if (placement === top) { sideY = bottom; y -= offsetParent.clientHeight - popperRect.height; y *= gpuAcceleration ? 1 : -1; } if (placement === left) { sideX = right; x -= offsetParent.clientWidth - popperRect.width; x *= gpuAcceleration ? 1 : -1; } } var commonStyles = Object.assign({ position: position }, adaptive && unsetSides); if (gpuAcceleration) { var _Object$assign; return Object.assign({}, commonStyles, (_Object$assign = {}, _Object$assign[sideY] = hasY ? '0' : '', _Object$assign[sideX] = hasX ? '0' : '', _Object$assign.transform = (window.devicePixelRatio || 1) < 2 ? "translate(" + x + "px, " + y + "px)" : "translate3d(" + x + "px, " + y + "px, 0)", _Object$assign)); } return Object.assign({}, commonStyles, (_Object$assign2 = {}, _Object$assign2[sideY] = hasY ? y + "px" : '', _Object$assign2[sideX] = hasX ? x + "px" : '', _Object$assign2.transform = '', _Object$assign2)); } function computeStyles(_ref3) { var state = _ref3.state, options = _ref3.options; var _options$gpuAccelerat = options.gpuAcceleration, gpuAcceleration = _options$gpuAccelerat === void 0 ? true : _options$gpuAccelerat, _options$adaptive = options.adaptive, adaptive = _options$adaptive === void 0 ? true : _options$adaptive; { if (adaptive && parseFloat(getComputedStyle(state.elements.popper).transitionDuration)) { console.warn(['Popper: The "computeStyles" modifier\'s `adaptive` option must be', 'disabled if CSS transitions are applied to the popper element.'].join(' ')); } } var commonStyles = { placement: getBasePlacement(state.placement), popper: state.elements.popper, popperRect: state.rects.popper, gpuAcceleration: gpuAcceleration }; // popper offsets are always available state.styles.popper = Object.assign({}, state.styles.popper, {}, mapToStyles(Object.assign({}, commonStyles, { offsets: state.modifiersData.popperOffsets, position: state.options.strategy, adaptive: adaptive }))); // arrow offsets may not be available if (state.modifiersData.arrow != null) { state.styles.arrow = Object.assign({}, state.styles.arrow, {}, mapToStyles(Object.assign({}, commonStyles, { offsets: state.modifiersData.arrow, position: 'absolute', adaptive: false }))); } state.attributes.popper = Object.assign({}, state.attributes.popper, { 'data-popper-placement': state.placement }); } var computeStyles$1 = { name: 'computeStyles', enabled: true, phase: 'beforeWrite', fn: computeStyles, data: {} }; // and applies them to the HTMLElements such as popper and arrow function applyStyles(_ref) { var state = _ref.state; Object.keys(state.elements).forEach(function (name) { var style = state.styles[name] || {}; var attributes = state.attributes[name] || {}; var element = state.elements[name]; // arrow is optional + virtual elements if (!isHTMLElement(element) || !getNodeName(element)) { return; } // Flow doesn't support to extend this property, but it's the most // effective way to apply styles to an HTMLElement // $FlowFixMe Object.assign(element.style, style); Object.keys(attributes).forEach(function (name) { var value = attributes[name]; if (value === false) { element.removeAttribute(name); } else { element.setAttribute(name, value === true ? '' : value); } }); }); } function effect$1(_ref2) { var state = _ref2.state; var initialStyles = { position: 'absolute', left: '0', top: '0', margin: '0' }; Object.assign(state.elements.popper.style, initialStyles); return function () { Object.keys(state.elements).forEach(function (name) { var element = state.elements[name]; var styleProperties = Object.keys(state.styles.hasOwnProperty(name) ? Object.assign({}, state.styles[name]) : initialStyles); var attributes = state.attributes[name] || {}; // Set all values to an empty string to unset them var style = styleProperties.reduce(function (style, property) { var _Object$assign; return Object.assign({}, style, (_Object$assign = {}, _Object$assign[String(property)] = '', _Object$assign)); }, {}); // arrow is optional + virtual elements if (!isHTMLElement(element) || !getNodeName(element)) { return; } // Flow doesn't support to extend this property, but it's the most // effective way to apply styles to an HTMLElement // $FlowFixMe Object.assign(element.style, style); Object.keys(attributes).forEach(function (attribute) { return element.removeAttribute(attribute); }); }); }; } var applyStyles$1 = { name: 'applyStyles', enabled: true, phase: 'write', fn: applyStyles, effect: effect$1, requires: ['computeStyles'] }; function distanceAndSkiddingToXY(placement, rects, offset) { var basePlacement = getBasePlacement(placement); var invertDistance = [left, top].indexOf(basePlacement) >= 0 ? -1 : 1; var _ref = typeof offset === 'function' ? offset(Object.assign({}, rects, { placement: placement })) : offset, skidding = _ref[0], distance = _ref[1]; skidding = skidding || 0; distance = (distance || 0) * invertDistance; return [left, right].indexOf(basePlacement) >= 0 ? { x: distance, y: skidding } : { x: skidding, y: distance }; } function offset(_ref2) { var state = _ref2.state, options = _ref2.options, name = _ref2.name; var _options$offset = options.offset, offset = _options$offset === void 0 ? [0, 0] : _options$offset; var data = placements.reduce(function (acc, placement) { acc[placement] = distanceAndSkiddingToXY(placement, state.rects, offset); return acc; }, {}); var _data$state$placement = data[state.placement], x = _data$state$placement.x, y = _data$state$placement.y; state.modifiersData.popperOffsets.x += x; state.modifiersData.popperOffsets.y += y; state.modifiersData[name] = data; } var offset$1 = { name: 'offset', enabled: true, phase: 'main', requires: ['popperOffsets'], fn: offset }; var hash = { left: 'right', right: 'left', bottom: 'top', top: 'bottom' }; function getOppositePlacement(placement) { return placement.replace(/left|right|bottom|top/g, function (matched) { return hash[matched]; }); } var hash$1 = { start: 'end', end: 'start' }; function getOppositeVariationPlacement(placement) { return placement.replace(/start|end/g, function (matched) { return hash$1[matched]; }); } function getViewportRect(element) { var win = getWindow(element); return { width: win.innerWidth, height: win.innerHeight, x: 0, y: 0 }; } function getDocumentRect(element) { var win = getWindow(element); var winScroll = getWindowScroll(element); var documentRect = getCompositeRect(getDocumentElement(element), win); documentRect.height = Math.max(documentRect.height, win.innerHeight); documentRect.width = Math.max(documentRect.width, win.innerWidth); documentRect.x = -winScroll.scrollLeft; documentRect.y = -winScroll.scrollTop; return documentRect; } function toNumber(cssValue) { return parseFloat(cssValue) || 0; } function getBorders(element) { var computedStyle = isHTMLElement(element) ? getComputedStyle(element) : {}; return { top: toNumber(computedStyle.borderTopWidth), right: toNumber(computedStyle.borderRightWidth), bottom: toNumber(computedStyle.borderBottomWidth), left: toNumber(computedStyle.borderLeftWidth) }; } function getDecorations(element) { var win = getWindow(element); var borders = getBorders(element); var isHTML = getNodeName(element) === 'html'; var winScrollBarX = getWindowScrollBarX(element); var x = element.clientWidth + borders.right; var y = element.clientHeight + borders.bottom; // HACK: // document.documentElement.clientHeight on iOS reports the height of the // viewport including the bottom bar, even if the bottom bar isn't visible. // If the difference between window innerHeight and html clientHeight is more // than 50, we assume it's a mobile bottom bar and ignore scrollbars. // * A 50px thick scrollbar is likely non-existent (macOS is 15px and Windows // is about 17px) // * The mobile bar is 114px tall if (isHTML && win.innerHeight - element.clientHeight > 50) { y = win.innerHeight - borders.bottom; } return { top: isHTML ? 0 : element.clientTop, right: // RTL scrollbar (scrolling containers only) element.clientLeft > borders.left ? borders.right : // LTR scrollbar isHTML ? win.innerWidth - x - winScrollBarX : element.offsetWidth - x, bottom: isHTML ? win.innerHeight - y : element.offsetHeight - y, left: isHTML ? winScrollBarX : element.clientLeft }; } function contains(parent, child) { // $FlowFixMe: hasOwnProperty doesn't seem to work in tests var isShadow = Boolean(child.getRootNode && child.getRootNode().host); // First, attempt with faster native method if (parent.contains(child)) { return true; } // then fallback to custom implementation with Shadow DOM support else if (isShadow) { var next = child; do { if (next && parent.isSameNode(next)) { return true; } // $FlowFixMe: need a better way to handle this... next = next.parentNode || next.host; } while (next); } // Give up, the result is false return false; } function rectToClientRect(rect) { return Object.assign({}, rect, { left: rect.x, top: rect.y, right: rect.x + rect.width, bottom: rect.y + rect.height }); } function getClientRectFromMixedType(element, clippingParent) { return clippingParent === viewport ? rectToClientRect(getViewportRect(element)) : isHTMLElement(clippingParent) ? getBoundingClientRect(clippingParent) : rectToClientRect(getDocumentRect(getDocumentElement(element))); } // A "clipping parent" is an overflowable container with the characteristic of // clipping (or hiding) overflowing elements with a position different from // `initial` function getClippingParents(element) { var clippingParents = listScrollParents(element); var canEscapeClipping = ['absolute', 'fixed'].indexOf(getComputedStyle(element).position) >= 0; var clipperElement = canEscapeClipping && isHTMLElement(element) ? getOffsetParent(element) : element; if (!isElement(clipperElement)) { return []; } // $FlowFixMe: https://github.com/facebook/flow/issues/1414 return clippingParents.filter(function (clippingParent) { return isElement(clippingParent) && contains(clippingParent, clipperElement); }); } // Gets the maximum area that the element is visible in due to any number of // clipping parents function getClippingRect(element, boundary, rootBoundary) { var mainClippingParents = boundary === 'clippingParents' ? getClippingParents(element) : [].concat(boundary); var clippingParents = [].concat(mainClippingParents, [rootBoundary]); var firstClippingParent = clippingParents[0]; var clippingRect = clippingParents.reduce(function (accRect, clippingParent) { var rect = getClientRectFromMixedType(element, clippingParent); var decorations = getDecorations(isHTMLElement(clippingParent) ? clippingParent : getDocumentElement(element)); accRect.top = Math.max(rect.top + decorations.top, accRect.top); accRect.right = Math.min(rect.right - decorations.right, accRect.right); accRect.bottom = Math.min(rect.bottom - decorations.bottom, accRect.bottom); accRect.left = Math.max(rect.left + decorations.left, accRect.left); return accRect; }, getClientRectFromMixedType(element, firstClippingParent)); clippingRect.width = clippingRect.right - clippingRect.left; clippingRect.height = clippingRect.bottom - clippingRect.top; clippingRect.x = clippingRect.left; clippingRect.y = clippingRect.top; return clippingRect; } function getFreshSideObject() { return { top: 0, right: 0, bottom: 0, left: 0 }; } function mergePaddingObject(paddingObject) { return Object.assign({}, getFreshSideObject(), {}, paddingObject); } function expandToHashMap(value, keys) { return keys.reduce(function (hashMap, key) { hashMap[key] = value; return hashMap; }, {}); } function detectOverflow(state, options) { if (options === void 0) { options = {}; } var _options = options, _options$placement = _options.placement, placement = _options$placement === void 0 ? state.placement : _options$placement, _options$boundary = _options.boundary, boundary = _options$boundary === void 0 ? clippingParents : _options$boundary, _options$rootBoundary = _options.rootBoundary, rootBoundary = _options$rootBoundary === void 0 ? viewport : _options$rootBoundary, _options$elementConte = _options.elementContext, elementContext = _options$elementConte === void 0 ? popper : _options$elementConte, _options$altBoundary = _options.altBoundary, altBoundary = _options$altBoundary === void 0 ? false : _options$altBoundary, _options$padding = _options.padding, padding = _options$padding === void 0 ? 0 : _options$padding; var paddingObject = mergePaddingObject(typeof padding !== 'number' ? padding : expandToHashMap(padding, basePlacements)); var altContext = elementContext === popper ? reference : popper; var referenceElement = state.elements.reference; var popperRect = state.rects.popper; var element = state.elements[altBoundary ? altContext : elementContext]; var clippingClientRect = getClippingRect(isElement(element) ? element : getDocumentElement(state.elements.popper), boundary, rootBoundary); var referenceClientRect = getBoundingClientRect(referenceElement); var popperOffsets = computeOffsets({ reference: referenceClientRect, element: popperRect, strategy: 'absolute', placement: placement }); var popperClientRect = rectToClientRect(Object.assign({}, popperRect, {}, popperOffsets)); var elementClientRect = elementContext === popper ? popperClientRect : referenceClientRect; // positive = overflowing the clipping rect // 0 or negative = within the clipping rect var overflowOffsets = { top: clippingClientRect.top - elementClientRect.top + paddingObject.top, bottom: elementClientRect.bottom - clippingClientRect.bottom + paddingObject.bottom, left: clippingClientRect.left - elementClientRect.left + paddingObject.left, right: elementClientRect.right - clippingClientRect.right + paddingObject.right }; var offsetData = state.modifiersData.offset; // Offsets can be applied only to the popper element if (elementContext === popper && offsetData) { var offset = offsetData[placement]; Object.keys(overflowOffsets).forEach(function (key) { var multiply = [right, bottom].indexOf(key) >= 0 ? 1 : -1; var axis = [top, bottom].indexOf(key) >= 0 ? 'y' : 'x'; overflowOffsets[key] += offset[axis] * multiply; }); } return overflowOffsets; } function computeAutoPlacement(state, options) { if (options === void 0) { options = {}; } var _options = options, placement = _options.placement, boundary = _options.boundary, rootBoundary = _options.rootBoundary, padding = _options.padding, flipVariations = _options.flipVariations; var variation = getVariation(placement); var placements = variation ? flipVariations ? variationPlacements : variationPlacements.filter(function (placement) { return getVariation(placement) === variation; }) : basePlacements; // $FlowFixMe: Flow seems to have problems with two array unions... var overflows = placements.reduce(function (acc, placement) { acc[placement] = detectOverflow(state, { placement: placement, boundary: boundary, rootBoundary: rootBoundary, padding: padding })[getBasePlacement(placement)]; return acc; }, {}); return Object.keys(overflows).sort(function (a, b) { return overflows[a] - overflows[b]; }); } function getExpandedFallbackPlacements(placement) { if (getBasePlacement(placement) === auto) { return []; } var oppositePlacement = getOppositePlacement(placement); return [getOppositeVariationPlacement(placement), oppositePlacement, getOppositeVariationPlacement(oppositePlacement)]; } function flip(_ref) { var state = _ref.state, options = _ref.options, name = _ref.name; if (state.modifiersData[name]._skip) { return; } var specifiedFallbackPlacements = options.fallbackPlacements, padding = options.padding, boundary = options.boundary, rootBoundary = options.rootBoundary, _options$flipVariatio = options.flipVariations, flipVariations = _options$flipVariatio === void 0 ? true : _options$flipVariatio; var preferredPlacement = state.options.placement; var basePlacement = getBasePlacement(preferredPlacement); var isBasePlacement = basePlacement === preferredPlacement; var fallbackPlacements = specifiedFallbackPlacements || (isBasePlacement || !flipVariations ? [getOppositePlacement(preferredPlacement)] : getExpandedFallbackPlacements(preferredPlacement)); var placements = uniqueBy([preferredPlacement].concat(fallbackPlacements).reduce(function (acc, placement) { return getBasePlacement(placement) === auto ? acc.concat(computeAutoPlacement(state, { placement: placement, boundary: boundary, rootBoundary: rootBoundary, padding: padding, flipVariations: flipVariations })) : acc.concat(placement); }, []), function (placement) { return placement; }); var referenceRect = state.rects.reference; var popperRect = state.rects.popper; var checksMap = new Map(); var makeFallbackChecks = true; var firstFittingPlacement = placements[0]; for (var i = 0; i < placements.length; i++) { var placement = placements[i]; var _basePlacement = getBasePlacement(placement); var isStartVariation = getVariation(placement) === start; var isVertical = [top, bottom].indexOf(_basePlacement) >= 0; var len = isVertical ? 'width' : 'height'; var overflow = detectOverflow(state, { placement: placement, boundary: boundary, rootBoundary: rootBoundary, padding: padding }); var mainVariationSide = isVertical ? isStartVariation ? right : left : isStartVariation ? bottom : top; if (referenceRect[len] > popperRect[len]) { mainVariationSide = getOppositePlacement(mainVariationSide); } var altVariationSide = getOppositePlacement(mainVariationSide); var checks = [overflow[_basePlacement] <= 0, overflow[mainVariationSide] <= 0, overflow[altVariationSide] <= 0]; if (checks.every(function (check) { return check; })) { firstFittingPlacement = placement; makeFallbackChecks = false; break; } checksMap.set(placement, checks); } if (makeFallbackChecks) { // `2` may be desired in some cases – research later var numberOfChecks = flipVariations ? 3 : 1; var _loop = function _loop(_i) { var fittingPlacement = placements.find(function (placement) { var checks = checksMap.get(placement); if (checks) { return checks.slice(0, _i).every(function (check) { return check; }); } }); if (fittingPlacement) { firstFittingPlacement = fittingPlacement; return "break"; } }; for (var _i = numberOfChecks; _i > 0; _i--) { var _ret = _loop(_i); if (_ret === "break") break; } } if (state.placement !== firstFittingPlacement) { state.modifiersData[name]._skip = true; state.placement = firstFittingPlacement; state.reset = true; } } var flip$1 = { name: 'flip', enabled: true, phase: 'main', fn: flip, requiresIfExists: ['offset'], data: { _skip: false } }; function getAltAxis(axis) { return axis === 'x' ? 'y' : 'x'; } function within(min, value, max) { return Math.max(min, Math.min(value, max)); } function preventOverflow(_ref) { var state = _ref.state, options = _ref.options, name = _ref.name; var _options$mainAxis = options.mainAxis, checkMainAxis = _options$mainAxis === void 0 ? true : _options$mainAxis, _options$altAxis = options.altAxis, checkAltAxis = _options$altAxis === void 0 ? false : _options$altAxis, boundary = options.boundary, rootBoundary = options.rootBoundary, padding = options.padding, _options$tether = options.tether, tether = _options$tether === void 0 ? true : _options$tether, _options$tetherOffset = options.tetherOffset, tetherOffset = _options$tetherOffset === void 0 ? 0 : _options$tetherOffset; var overflow = detectOverflow(state, { boundary: boundary, rootBoundary: rootBoundary, padding: padding }); var basePlacement = getBasePlacement(state.placement); var variation = getVariation(state.placement); var isBasePlacement = !variation; var mainAxis = getMainAxisFromPlacement(basePlacement); var altAxis = getAltAxis(mainAxis); var popperOffsets = state.modifiersData.popperOffsets; var referenceRect = state.rects.reference; var popperRect = state.rects.popper; var tetherOffsetValue = typeof tetherOffset === 'function' ? tetherOffset(Object.assign({}, state.rects, { placement: state.placement })) : tetherOffset; var data = { x: 0, y: 0 }; if (checkMainAxis) { var mainSide = mainAxis === 'y' ? top : left; var altSide = mainAxis === 'y' ? bottom : right; var len = mainAxis === 'y' ? 'height' : 'width'; var offset = popperOffsets[mainAxis]; var min = popperOffsets[mainAxis] + overflow[mainSide]; var max = popperOffsets[mainAxis] - overflow[altSide]; var additive = tether ? -popperRect[len] / 2 : 0; var minLen = variation === start ? referenceRect[len] : popperRect[len]; var maxLen = variation === start ? -popperRect[len] : -referenceRect[len]; // We need to include the arrow in the calculation so the arrow doesn't go // outside the reference bounds var arrowElement = state.elements.arrow; var arrowRect = tether && arrowElement ? getLayoutRect(arrowElement) : { width: 0, height: 0 }; var arrowPaddingObject = state.modifiersData['arrow#persistent'] ? state.modifiersData['arrow#persistent'].padding : getFreshSideObject(); var arrowPaddingMin = arrowPaddingObject[mainSide]; var arrowPaddingMax = arrowPaddingObject[altSide]; // If the reference length is smaller than the arrow length, we don't want // to include its full size in the calculation. If the reference is small // and near the edge of a boundary, the popper can overflow even if the // reference is not overflowing as well (e.g. virtual elements with no // width or height) var arrowLen = within(0, Math.abs(referenceRect[len] - arrowRect[len]), arrowRect[len]); var minOffset = isBasePlacement ? referenceRect[len] / 2 - additive - arrowLen - arrowPaddingMin - tetherOffsetValue : minLen - arrowLen - arrowPaddingMin - tetherOffsetValue; var maxOffset = isBasePlacement ? -referenceRect[len] / 2 + additive + arrowLen + arrowPaddingMax + tetherOffsetValue : maxLen + arrowLen + arrowPaddingMax + tetherOffsetValue; var offsetModifierValue = state.modifiersData.offset ? state.modifiersData.offset[state.placement][mainAxis] : 0; var tetherMin = state.modifiersData.popperOffsets[mainAxis] + minOffset - offsetModifierValue; var tetherMax = state.modifiersData.popperOffsets[mainAxis] + maxOffset - offsetModifierValue; var preventedOffset = within(tether ? Math.min(min, tetherMin) : min, offset, tether ? Math.max(max, tetherMax) : max); state.modifiersData.popperOffsets[mainAxis] = preventedOffset; data[mainAxis] = preventedOffset - offset; } if (checkAltAxis) { var _mainSide = mainAxis === 'x' ? top : left; var _altSide = mainAxis === 'x' ? bottom : right; var _offset = popperOffsets[altAxis]; var _min = _offset + overflow[_mainSide]; var _max = _offset - overflow[_altSide]; var _preventedOffset = within(_min, _offset, _max); state.modifiersData.popperOffsets[altAxis] = _preventedOffset; data[altAxis] = _preventedOffset - _offset; } state.modifiersData[name] = data; } var preventOverflow$1 = { name: 'preventOverflow', enabled: true, phase: 'main', fn: preventOverflow, requiresIfExists: ['offset'] }; function arrow(_ref) { var _state$modifiersData$; var state = _ref.state, name = _ref.name; var arrowElement = state.elements.arrow; var popperOffsets = state.modifiersData.popperOffsets; var basePlacement = getBasePlacement(state.placement); var axis = getMainAxisFromPlacement(basePlacement); var isVertical = [left, right].indexOf(basePlacement) >= 0; var len = isVertical ? 'height' : 'width'; if (!arrowElement) { return; } var paddingObject = state.modifiersData[name + "#persistent"].padding; var arrowRect = getLayoutRect(arrowElement); var minProp = axis === 'y' ? top : left; var maxProp = axis === 'y' ? bottom : right; var endDiff = state.rects.reference[len] + state.rects.reference[axis] - popperOffsets[axis] - state.rects.popper[len]; var startDiff = popperOffsets[axis] - state.rects.reference[axis]; var centerToReference = endDiff / 2 - startDiff / 2; // Make sure the arrow doesn't overflow the popper if the center point is // outside of the popper bounds var center = within(paddingObject[minProp], state.rects.popper[len] / 2 - arrowRect[len] / 2 + centerToReference, state.rects.popper[len] - arrowRect[len] - paddingObject[maxProp]); // Prevents breaking syntax highlighting... var axisProp = axis; state.modifiersData[name] = (_state$modifiersData$ = {}, _state$modifiersData$[axisProp] = center, _state$modifiersData$); } function effect$2(_ref2) { var state = _ref2.state, options = _ref2.options, name = _ref2.name; var _options$element = options.element, arrowElement = _options$element === void 0 ? '[data-popper-arrow]' : _options$element, _options$padding = options.padding, padding = _options$padding === void 0 ? 0 : _options$padding; // CSS selector if (typeof arrowElement === 'string') { arrowElement = state.elements.popper.querySelector(arrowElement); if (!arrowElement) { return; } } if (!contains(state.elements.popper, arrowElement)) { { console.error(['Popper: "arrow" modifier\'s `element` must be a child of the popper', 'element.'].join(' ')); } return; } state.elements.arrow = arrowElement; state.modifiersData[name + "#persistent"] = { padding: mergePaddingObject(typeof padding !== 'number' ? padding : expandToHashMap(padding, basePlacements)) }; } var arrow$1 = { name: 'arrow', enabled: true, phase: 'main', fn: arrow, effect: effect$2, requires: ['popperOffsets'], requiresIfExists: ['preventOverflow'] }; function getSideOffsets(overflow, rect, preventedOffsets) { if (preventedOffsets === void 0) { preventedOffsets = { x: 0, y: 0 }; } return { top: overflow.top - rect.height - preventedOffsets.y, right: overflow.right - rect.width + preventedOffsets.x, bottom: overflow.bottom - rect.height + preventedOffsets.y, left: overflow.left - rect.width - preventedOffsets.x }; } function isAnySideFullyClipped(overflow) { return [top, right, bottom, left].some(function (side) { return overflow[side] >= 0; }); } function hide(_ref) { var state = _ref.state, name = _ref.name; var referenceRect = state.rects.reference; var popperRect = state.rects.popper; var preventedOffsets = state.modifiersData.preventOverflow; var referenceOverflow = detectOverflow(state, { elementContext: 'reference' }); var popperAltOverflow = detectOverflow(state, { altBoundary: true }); var referenceClippingOffsets = getSideOffsets(referenceOverflow, referenceRect); var popperEscapeOffsets = getSideOffsets(popperAltOverflow, popperRect, preventedOffsets); var isReferenceHidden = isAnySideFullyClipped(referenceClippingOffsets); var hasPopperEscaped = isAnySideFullyClipped(popperEscapeOffsets); state.modifiersData[name] = { referenceClippingOffsets: referenceClippingOffsets, popperEscapeOffsets: popperEscapeOffsets, isReferenceHidden: isReferenceHidden, hasPopperEscaped: hasPopperEscaped }; state.attributes.popper = Object.assign({}, state.attributes.popper, { 'data-popper-reference-hidden': isReferenceHidden, 'data-popper-escaped': hasPopperEscaped }); } var hide$1 = { name: 'hide', enabled: true, phase: 'main', requiresIfExists: ['preventOverflow'], fn: hide }; var defaultModifiers = [eventListeners, popperOffsets$1, computeStyles$1, applyStyles$1, offset$1, flip$1, preventOverflow$1, arrow$1, hide$1]; var createPopper = /*#__PURE__*/ popperGenerator({ defaultModifiers: defaultModifiers }); // eslint-disable-next-line import/no-unused-modules exports.createPopper = createPopper; exports.defaultModifiers = defaultModifiers; exports.popperGenerator = popperGenerator; Object.defineProperty(exports, '__esModule', { value: true }); }))); //# sourceMappingURL=popper.js.map