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Diffstat (limited to 'popperjs/package/dist/cjs/popper.js')
| -rw-r--r-- | popperjs/package/dist/cjs/popper.js | 1968 |
1 files changed, 1968 insertions, 0 deletions
diff --git a/popperjs/package/dist/cjs/popper.js b/popperjs/package/dist/cjs/popper.js new file mode 100644 index 0000000..f19e81c --- /dev/null +++ b/popperjs/package/dist/cjs/popper.js @@ -0,0 +1,1968 @@ +/** + * @popperjs/core v2.11.0 - MIT License + */ + +'use strict'; + +Object.defineProperty(exports, '__esModule', { value: true }); + +function getWindow(node) { + if (node == null) { + return window; + } + + if (node.toString() !== '[object Window]') { + var ownerDocument = node.ownerDocument; + return ownerDocument ? ownerDocument.defaultView || window : window; + } + + return node; +} + +function isElement(node) { + var OwnElement = getWindow(node).Element; + return node instanceof OwnElement || node instanceof Element; +} + +function isHTMLElement(node) { + var OwnElement = getWindow(node).HTMLElement; + return node instanceof OwnElement || node instanceof HTMLElement; +} + +function isShadowRoot(node) { + // IE 11 has no ShadowRoot + if (typeof ShadowRoot === 'undefined') { + return false; + } + + var OwnElement = getWindow(node).ShadowRoot; + return node instanceof OwnElement || node instanceof ShadowRoot; +} + +var max = Math.max; +var min = Math.min; +var round = Math.round; + +function getBoundingClientRect(element, includeScale) { + if (includeScale === void 0) { + includeScale = false; + } + + var rect = element.getBoundingClientRect(); + var scaleX = 1; + var scaleY = 1; + + if (isHTMLElement(element) && includeScale) { + var offsetHeight = element.offsetHeight; + var offsetWidth = element.offsetWidth; // Do not attempt to divide by 0, otherwise we get `Infinity` as scale + // Fallback to 1 in case both values are `0` + + if (offsetWidth > 0) { + scaleX = round(rect.width) / offsetWidth || 1; + } + + if (offsetHeight > 0) { + scaleY = round(rect.height) / offsetHeight || 1; + } + } + + return { + width: rect.width / scaleX, + height: rect.height / scaleY, + top: rect.top / scaleY, + right: rect.right / scaleX, + bottom: rect.bottom / scaleY, + left: rect.left / scaleX, + x: rect.left / scaleX, + y: rect.top / scaleY + }; +} + +function getWindowScroll(node) { + var win = getWindow(node); + var scrollLeft = win.pageXOffset; + var scrollTop = win.pageYOffset; + return { + scrollLeft: scrollLeft, + scrollTop: scrollTop + }; +} + +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[incompatible-return]: assume body is always available + return ((isElement(element) ? element.ownerDocument : // $FlowFixMe[prop-missing] + element.document) || window.document).documentElement; +} + +function getWindowScrollBarX(element) { + // If <html> 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 <html> + // 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; +} + +function getComputedStyle(element) { + return getWindow(element).getComputedStyle(element); +} + +function isScrollParent(element) { + // Firefox wants us to check `-x` and `-y` variations as well + var _getComputedStyle = getComputedStyle(element), + overflow = _getComputedStyle.overflow, + overflowX = _getComputedStyle.overflowX, + overflowY = _getComputedStyle.overflowY; + + return /auto|scroll|overlay|hidden/.test(overflow + overflowY + overflowX); +} + +function isElementScaled(element) { + var rect = element.getBoundingClientRect(); + var scaleX = round(rect.width) / element.offsetWidth || 1; + var scaleY = round(rect.height) / element.offsetHeight || 1; + return scaleX !== 1 || scaleY !== 1; +} // Returns the composite rect of an element relative to its offsetParent. +// Composite means it takes into account transforms as well as layout. + + +function getCompositeRect(elementOrVirtualElement, offsetParent, isFixed) { + if (isFixed === void 0) { + isFixed = false; + } + + var isOffsetParentAnElement = isHTMLElement(offsetParent); + var offsetParentIsScaled = isHTMLElement(offsetParent) && isElementScaled(offsetParent); + var documentElement = getDocumentElement(offsetParent); + var rect = getBoundingClientRect(elementOrVirtualElement, offsetParentIsScaled); + var scroll = { + scrollLeft: 0, + scrollTop: 0 + }; + var offsets = { + x: 0, + y: 0 + }; + + if (isOffsetParentAnElement || !isOffsetParentAnElement && !isFixed) { + if (getNodeName(offsetParent) !== 'body' || // https://github.com/popperjs/popper-core/issues/1078 + isScrollParent(documentElement)) { + scroll = getNodeScroll(offsetParent); + } + + if (isHTMLElement(offsetParent)) { + offsets = getBoundingClientRect(offsetParent, true); + offsets.x += offsetParent.clientLeft; + offsets.y += offsetParent.clientTop; + } else if (documentElement) { + 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 + }; +} + +// means it doesn't take into account transforms. + +function getLayoutRect(element) { + var clientRect = getBoundingClientRect(element); // Use the clientRect sizes if it's not been transformed. + // Fixes https://github.com/popperjs/popper-core/issues/1223 + + var width = element.offsetWidth; + var height = element.offsetHeight; + + if (Math.abs(clientRect.width - width) <= 1) { + width = clientRect.width; + } + + if (Math.abs(clientRect.height - height) <= 1) { + height = clientRect.height; + } + + return { + x: element.offsetLeft, + y: element.offsetTop, + width: width, + height: height + }; +} + +function getParentNode(element) { + if (getNodeName(element) === 'html') { + return element; + } + + return (// this is a quicker (but less type safe) way to save quite some bytes from the bundle + // $FlowFixMe[incompatible-return] + // $FlowFixMe[prop-missing] + element.assignedSlot || // step into the shadow DOM of the parent of a slotted node + element.parentNode || ( // DOM Element detected + isShadowRoot(element) ? element.host : null) || // ShadowRoot detected + // $FlowFixMe[incompatible-call]: HTMLElement is a Node + getDocumentElement(element) // fallback + + ); +} + +function getScrollParent(node) { + if (['html', 'body', '#document'].indexOf(getNodeName(node)) >= 0) { + // $FlowFixMe[incompatible-return]: assume body is always available + return node.ownerDocument.body; + } + + if (isHTMLElement(node) && isScrollParent(node)) { + return node; + } + + return getScrollParent(getParentNode(node)); +} + +/* +given a DOM element, return the list of all scroll parents, up the list of ancesors +until we get to the top window object. This list is what we attach scroll listeners +to, because if any of these parent elements scroll, we'll need to re-calculate the +reference element's position. +*/ + +function listScrollParents(element, list) { + var _element$ownerDocumen; + + if (list === void 0) { + list = []; + } + + var scrollParent = getScrollParent(element); + var isBody = scrollParent === ((_element$ownerDocumen = element.ownerDocument) == null ? void 0 : _element$ownerDocumen.body); + var win = getWindow(scrollParent); + var target = isBody ? [win].concat(win.visualViewport || [], isScrollParent(scrollParent) ? scrollParent : []) : scrollParent; + var updatedList = list.concat(target); + return isBody ? updatedList : // $FlowFixMe[incompatible-call]: 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; +} + +function getTrueOffsetParent(element) { + if (!isHTMLElement(element) || // https://github.com/popperjs/popper-core/issues/837 + getComputedStyle(element).position === 'fixed') { + return null; + } + + return element.offsetParent; +} // `.offsetParent` reports `null` for fixed elements, while absolute elements +// return the containing block + + +function getContainingBlock(element) { + var isFirefox = navigator.userAgent.toLowerCase().indexOf('firefox') !== -1; + var isIE = navigator.userAgent.indexOf('Trident') !== -1; + + if (isIE && isHTMLElement(element)) { + // In IE 9, 10 and 11 fixed elements containing block is always established by the viewport + var elementCss = getComputedStyle(element); + + if (elementCss.position === 'fixed') { + return null; + } + } + + var currentNode = getParentNode(element); + + while (isHTMLElement(currentNode) && ['html', 'body'].indexOf(getNodeName(currentNode)) < 0) { + var css = getComputedStyle(currentNode); // This is non-exhaustive but covers the most common CSS properties that + // create a containing block. + // https://developer.mozilla.org/en-US/docs/Web/CSS/Containing_block#identifying_the_containing_block + + if (css.transform !== 'none' || css.perspective !== 'none' || css.contain === 'paint' || ['transform', 'perspective'].indexOf(css.willChange) !== -1 || isFirefox && css.willChange === 'filter' || isFirefox && css.filter && css.filter !== 'none') { + return currentNode; + } else { + currentNode = currentNode.parentNode; + } + } + + return null; +} // Gets the closest ancestor positioned element. Handles some edge cases, +// such as table ancestors and cross browser bugs. + + +function getOffsetParent(element) { + var window = getWindow(element); + var offsetParent = getTrueOffsetParent(element); + + while (offsetParent && isTableElement(offsetParent) && getComputedStyle(offsetParent).position === 'static') { + offsetParent = getTrueOffsetParent(offsetParent); + } + + if (offsetParent && (getNodeName(offsetParent) === 'html' || getNodeName(offsetParent) === 'body' && getComputedStyle(offsetParent).position === 'static')) { + return window; + } + + return offsetParent || getContainingBlock(element) || 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) { + [].concat(Object.keys(modifier), VALID_PROPERTIES) // IE11-compatible replacement for `new Set(iterable)` + .filter(function (value, index, self) { + return self.indexOf(value) === index; + }).forEach(function (key) { + switch (key) { + case 'name': + if (typeof modifier.name !== 'string') { + console.error(format(INVALID_MODIFIER_ERROR, String(modifier.name), '"name"', '"string"', "\"" + String(modifier.name) + "\"")); + } + + break; + + case 'enabled': + if (typeof modifier.enabled !== 'boolean') { + console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"enabled"', '"boolean"', "\"" + String(modifier.enabled) + "\"")); + } + + break; + + case 'phase': + if (modifierPhases.indexOf(modifier.phase) < 0) { + console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"phase"', "either " + modifierPhases.join(', '), "\"" + String(modifier.phase) + "\"")); + } + + break; + + case 'fn': + if (typeof modifier.fn !== 'function') { + console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"fn"', '"function"', "\"" + String(modifier.fn) + "\"")); + } + + break; + + case 'effect': + if (modifier.effect != null && typeof modifier.effect !== 'function') { + console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"effect"', '"function"', "\"" + String(modifier.fn) + "\"")); + } + + break; + + case 'requires': + if (modifier.requires != null && !Array.isArray(modifier.requires)) { + console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"requires"', '"array"', "\"" + String(modifier.requires) + "\"")); + } + + break; + + case 'requiresIfExists': + if (!Array.isArray(modifier.requiresIfExists)) { + console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"requiresIfExists"', '"array"', "\"" + String(modifier.requiresIfExists) + "\"")); + } + + break; + + case 'options': + case 'data': + break; + + default: + console.error("PopperJS: an invalid property has been provided to the \"" + modifier.name + "\" modifier, valid properties are " + VALID_PROPERTIES.map(function (s) { + return "\"" + s + "\""; + }).join(', ') + "; but \"" + key + "\" was provided."); + } + + modifier.requires && modifier.requires.forEach(function (requirement) { + if (modifiers.find(function (mod) { + return mod.name === requirement; + }) == null) { + console.error(format(MISSING_DEPENDENCY_ERROR, String(modifier.name), requirement, requirement)); + } + }); + }); + }); +} + +function uniqueBy(arr, fn) { + var identifiers = new Set(); + return arr.filter(function (item) { + var identifier = fn(item); + + if (!identifiers.has(identifier)) { + identifiers.add(identifier); + return true; + } + }); +} + +function getBasePlacement(placement) { + return placement.split('-')[0]; +} + +function mergeByName(modifiers) { + var merged = modifiers.reduce(function (merged, current) { + var existing = merged[current.name]; + merged[current.name] = existing ? Object.assign({}, existing, current, { + options: Object.assign({}, existing.options, current.options), + data: Object.assign({}, existing.data, current.data) + }) : current; + return merged; + }, {}); // IE11 does not support Object.values + + return Object.keys(merged).map(function (key) { + return merged[key]; + }); +} + +function getViewportRect(element) { + var win = getWindow(element); + var html = getDocumentElement(element); + var visualViewport = win.visualViewport; + var width = html.clientWidth; + var height = html.clientHeight; + var x = 0; + var y = 0; // NB: This isn't supported on iOS <= 12. If the keyboard is open, the popper + // can be obscured underneath it. + // Also, `html.clientHeight` adds the bottom bar height in Safari iOS, even + // if it isn't open, so if this isn't available, the popper will be detected + // to overflow the bottom of the screen too early. + + if (visualViewport) { + width = visualViewport.width; + height = visualViewport.height; // Uses Layout Viewport (like Chrome; Safari does not currently) + // In Chrome, it returns a value very close to 0 (+/-) but contains rounding + // errors due to floating point numbers, so we need to check precision. + // Safari returns a number <= 0, usually < -1 when pinch-zoomed + // Feature detection fails in mobile emulation mode in Chrome. + // Math.abs(win.innerWidth / visualViewport.scale - visualViewport.width) < + // 0.001 + // Fallback here: "Not Safari" userAgent + + if (!/^((?!chrome|android).)*safari/i.test(navigator.userAgent)) { + x = visualViewport.offsetLeft; + y = visualViewport.offsetTop; + } + } + + return { + width: width, + height: height, + x: x + getWindowScrollBarX(element), + y: y + }; +} + +// of the `<html>` and `<body>` rect bounds if horizontally scrollable + +function getDocumentRect(element) { + var _element$ownerDocumen; + + var html = getDocumentElement(element); + var winScroll = getWindowScroll(element); + var body = (_element$ownerDocumen = element.ownerDocument) == null ? void 0 : _element$ownerDocumen.body; + var width = max(html.scrollWidth, html.clientWidth, body ? body.scrollWidth : 0, body ? body.clientWidth : 0); + var height = max(html.scrollHeight, html.clientHeight, body ? body.scrollHeight : 0, body ? body.clientHeight : 0); + var x = -winScroll.scrollLeft + getWindowScrollBarX(element); + var y = -winScroll.scrollTop; + + if (getComputedStyle(body || html).direction === 'rtl') { + x += max(html.clientWidth, body ? body.clientWidth : 0) - width; + } + + return { + width: width, + height: height, + x: x, + y: y + }; +} + +function contains(parent, child) { + var rootNode = child.getRootNode && child.getRootNode(); // First, attempt with faster native method + + if (parent.contains(child)) { + return true; + } // then fallback to custom implementation with Shadow DOM support + else if (rootNode && isShadowRoot(rootNode)) { + var next = child; + + do { + if (next && parent.isSameNode(next)) { + return true; + } // $FlowFixMe[prop-missing]: need a better way to handle this... + + + next = next.parentNode || next.host; + } while (next); + } // Give up, the result is false + + + return false; +} + +function rectToClientRect(rect) { + return Object.assign({}, rect, { + left: rect.x, + top: rect.y, + right: rect.x + rect.width, + bottom: rect.y + rect.height + }); +} + +function getInnerBoundingClientRect(element) { + var rect = getBoundingClientRect(element); + rect.top = rect.top + element.clientTop; + rect.left = rect.left + element.clientLeft; + rect.bottom = rect.top + element.clientHeight; + rect.right = rect.left + element.clientWidth; + rect.width = element.clientWidth; + rect.height = element.clientHeight; + rect.x = rect.left; + rect.y = rect.top; + return rect; +} + +function getClientRectFromMixedType(element, clippingParent) { + return clippingParent === viewport ? rectToClientRect(getViewportRect(element)) : isElement(clippingParent) ? getInnerBoundingClientRect(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(getParentNode(element)); + var canEscapeClipping = ['absolute', 'fixed'].indexOf(getComputedStyle(element).position) >= 0; + var clipperElement = canEscapeClipping && isHTMLElement(element) ? getOffsetParent(element) : element; + + if (!isElement(clipperElement)) { + return []; + } // $FlowFixMe[incompatible-return]: https://github.com/facebook/flow/issues/1414 + + + return clippingParents.filter(function (clippingParent) { + return isElement(clippingParent) && contains(clippingParent, clipperElement) && getNodeName(clippingParent) !== 'body' && (canEscapeClipping ? getComputedStyle(clippingParent).position !== 'static' : true); + }); +} // 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); + accRect.top = max(rect.top, accRect.top); + accRect.right = min(rect.right, accRect.right); + accRect.bottom = min(rect.bottom, accRect.bottom); + accRect.left = max(rect.left, accRect.left); + return accRect; + }, getClientRectFromMixedType(element, firstClippingParent)); + clippingRect.width = clippingRect.right - clippingRect.left; + clippingRect.height = clippingRect.bottom - clippingRect.top; + clippingRect.x = clippingRect.left; + clippingRect.y = clippingRect.top; + return clippingRect; +} + +function getVariation(placement) { + return placement.split('-')[1]; +} + +function getMainAxisFromPlacement(placement) { + return ['top', 'bottom'].indexOf(placement) >= 0 ? 'x' : 'y'; +} + +function computeOffsets(_ref) { + var reference = _ref.reference, + element = _ref.element, + placement = _ref.placement; + var basePlacement = placement ? getBasePlacement(placement) : null; + var variation = placement ? getVariation(placement) : null; + var commonX = reference.x + reference.width / 2 - element.width / 2; + var commonY = reference.y + reference.height / 2 - element.height / 2; + var offsets; + + switch (basePlacement) { + case top: + offsets = { + x: commonX, + y: reference.y - element.height + }; + break; + + case bottom: + offsets = { + x: commonX, + y: reference.y + reference.height + }; + break; + + case right: + offsets = { + x: reference.x + reference.width, + y: commonY + }; + break; + + case left: + offsets = { + x: reference.x - element.width, + y: commonY + }; + break; + + default: + offsets = { + x: reference.x, + y: reference.y + }; + } + + var mainAxis = basePlacement ? getMainAxisFromPlacement(basePlacement) : null; + + if (mainAxis != null) { + var len = mainAxis === 'y' ? 'height' : 'width'; + + switch (variation) { + case start: + offsets[mainAxis] = offsets[mainAxis] - (reference[len] / 2 - element[len] / 2); + break; + + case end: + offsets[mainAxis] = offsets[mainAxis] + (reference[len] / 2 - element[len] / 2); + break; + } + } + + return offsets; +} + +function getFreshSideObject() { + return { + top: 0, + right: 0, + bottom: 0, + left: 0 + }; +} + +function mergePaddingObject(paddingObject) { + return Object.assign({}, getFreshSideObject(), paddingObject); +} + +function expandToHashMap(value, keys) { + return keys.reduce(function (hashMap, key) { + hashMap[key] = value; + return hashMap; + }, {}); +} + +function detectOverflow(state, options) { + if (options === void 0) { + options = {}; + } + + var _options = options, + _options$placement = _options.placement, + placement = _options$placement === void 0 ? state.placement : _options$placement, + _options$boundary = _options.boundary, + boundary = _options$boundary === void 0 ? clippingParents : _options$boundary, + _options$rootBoundary = _options.rootBoundary, + rootBoundary = _options$rootBoundary === void 0 ? viewport : _options$rootBoundary, + _options$elementConte = _options.elementContext, + elementContext = _options$elementConte === void 0 ? popper : _options$elementConte, + _options$altBoundary = _options.altBoundary, + altBoundary = _options$altBoundary === void 0 ? false : _options$altBoundary, + _options$padding = _options.padding, + padding = _options$padding === void 0 ? 0 : _options$padding; + var paddingObject = mergePaddingObject(typeof padding !== 'number' ? padding : expandToHashMap(padding, basePlacements)); + var altContext = elementContext === popper ? reference : popper; + var popperRect = state.rects.popper; + var element = state.elements[altBoundary ? altContext : elementContext]; + var clippingClientRect = getClippingRect(isElement(element) ? element : element.contextElement || getDocumentElement(state.elements.popper), boundary, rootBoundary); + var referenceClientRect = getBoundingClientRect(state.elements.reference); + var popperOffsets = computeOffsets({ + reference: referenceClientRect, + element: popperRect, + strategy: 'absolute', + placement: placement + }); + var popperClientRect = rectToClientRect(Object.assign({}, popperRect, popperOffsets)); + var elementClientRect = elementContext === popper ? popperClientRect : referenceClientRect; // positive = overflowing the clipping rect + // 0 or negative = within the clipping rect + + var overflowOffsets = { + top: clippingClientRect.top - elementClientRect.top + paddingObject.top, + bottom: elementClientRect.bottom - clippingClientRect.bottom + paddingObject.bottom, + left: clippingClientRect.left - elementClientRect.left + paddingObject.left, + right: elementClientRect.right - clippingClientRect.right + paddingObject.right + }; + var offsetData = state.modifiersData.offset; // Offsets can be applied only to the popper element + + if (elementContext === popper && offsetData) { + var offset = offsetData[placement]; + Object.keys(overflowOffsets).forEach(function (key) { + var multiply = [right, bottom].indexOf(key) >= 0 ? 1 : -1; + var axis = [top, bottom].indexOf(key) >= 0 ? 'y' : 'x'; + overflowOffsets[key] += offset[axis] * multiply; + }); + } + + return overflowOffsets; +} + +var INVALID_ELEMENT_ERROR = 'Popper: Invalid reference or popper argument provided. They must be either a DOM element or virtual element.'; +var INFINITE_LOOP_ERROR = 'Popper: An infinite loop in the modifiers cycle has been detected! The cycle has been interrupted to prevent a browser crash.'; +var DEFAULT_OPTIONS = { + placement: 'bottom', + modifiers: [], + strategy: 'absolute' +}; + +function areValidElements() { + for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) { + args[_key] = arguments[_key]; + } + + return !args.some(function (element) { + return !(element && typeof element.getBoundingClientRect === 'function'); + }); +} + +function popperGenerator(generatorOptions) { + if (generatorOptions === void 0) { + generatorOptions = {}; + } + + var _generatorOptions = generatorOptions, + _generatorOptions$def = _generatorOptions.defaultModifiers, + defaultModifiers = _generatorOptions$def === void 0 ? [] : _generatorOptions$def, + _generatorOptions$def2 = _generatorOptions.defaultOptions, + defaultOptions = _generatorOptions$def2 === void 0 ? DEFAULT_OPTIONS : _generatorOptions$def2; + return function createPopper(reference, popper, options) { + if (options === void 0) { + options = defaultOptions; + } + + var state = { + placement: 'bottom', + orderedModifiers: [], + options: Object.assign({}, DEFAULT_OPTIONS, defaultOptions), + modifiersData: {}, + elements: { + reference: reference, + popper: popper + }, + attributes: {}, + styles: {} + }; + var effectCleanupFns = []; + var isDestroyed = false; + var instance = { + state: state, + setOptions: function setOptions(setOptionsAction) { + var options = typeof setOptionsAction === 'function' ? setOptionsAction(state.options) : setOptionsAction; + cleanupModifierEffects(); + state.options = Object.assign({}, defaultOptions, state.options, options); + state.scrollParents = { + reference: isElement(reference) ? listScrollParents(reference) : reference.contextElement ? listScrollParents(reference.contextElement) : [], + popper: listScrollParents(popper) + }; // Orders the modifiers based on their dependencies and `phase` + // properties + + var orderedModifiers = orderModifiers(mergeByName([].concat(defaultModifiers, state.options.modifiers))); // Strip out disabled modifiers + + state.orderedModifiers = orderedModifiers.filter(function (m) { + return m.enabled; + }); // Validate the provided modifiers so that the consumer will get warned + // if one of the modifiers is invalid for any reason + + if (process.env.NODE_ENV !== "production") { + var modifiers = uniqueBy([].concat(orderedModifiers, state.options.modifiers), function (_ref) { + var name = _ref.name; + return name; + }); + validateModifiers(modifiers); + + if (getBasePlacement(state.options.placement) === auto) { + var flipModifier = state.orderedModifiers.find(function (_ref2) { + var name = _ref2.name; + return name === 'flip'; + }); + + if (!flipModifier) { + console.error(['Popper: "auto" placements require the "flip" modifier be', 'present and enabled to work.'].join(' ')); + } + } + + var _getComputedStyle = getComputedStyle(popper), + marginTop = _getComputedStyle.marginTop, + marginRight = _getComputedStyle.marginRight, + marginBottom = _getComputedStyle.marginBottom, + marginLeft = _getComputedStyle.marginLeft; // We no longer take into account `margins` on the popper, and it can + // cause bugs with positioning, so we'll warn the consumer + + + if ([marginTop, marginRight, marginBottom, marginLeft].some(function (margin) { + return parseFloat(margin); + })) { + console.warn(['Popper: CSS "margin" styles cannot be used to apply padding', 'between the popper and its reference element or boundary.', 'To replicate margin, use the `offset` modifier, as well as', 'the `padding` option in the `preventOverflow` and `flip`', 'modifiers.'].join(' ')); + } + } + + runModifierEffects(); + return instance.update(); + }, + // Sync update – it will always be executed, even if not necessary. This + // is useful for low frequency updates where sync behavior simplifies the + // logic. + // For high frequency updates (e.g. `resize` and `scroll` events), always + // prefer the async Popper#update method + forceUpdate: function forceUpdate() { + if (isDestroyed) { + return; + } + + var _state$elements = state.elements, + reference = _state$elements.reference, + popper = _state$elements.popper; // Don't proceed if `reference` or `popper` are not valid elements + // anymore + + if (!areValidElements(reference, popper)) { + if (process.env.NODE_ENV !== "production") { + 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 `${name}#persistent` + + state.orderedModifiers.forEach(function (modifier) { + return state.modifiersData[modifier.name] = Object.assign({}, modifier.data); + }); + var __debug_loops__ = 0; + + for (var index = 0; index < state.orderedModifiers.length; index++) { + if (process.env.NODE_ENV !== "production") { + __debug_loops__ += 1; + + if (__debug_loops__ > 100) { + console.error(INFINITE_LOOP_ERROR); + break; + } + } + + if (state.reset === true) { + state.reset = false; + index = -1; + continue; + } + + var _state$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)) { + if (process.env.NODE_ENV !== "production") { + console.error(INVALID_ELEMENT_ERROR); + } + + return instance; + } + + instance.setOptions(options).then(function (state) { + if (!isDestroyed && options.onFirstUpdate) { + options.onFirstUpdate(state); + } + }); // Modifiers have the ability to execute arbitrary code before the first + // update cycle runs. They will be executed in the same order as the update + // cycle. This is useful when a modifier adds some persistent data that + // other modifiers need to use, but the modifier is run after the dependent + // one. + + function runModifierEffects() { + state.orderedModifiers.forEach(function (_ref3) { + var name = _ref3.name, + _ref3$options = _ref3.options, + options = _ref3$options === void 0 ? {} : _ref3$options, + effect = _ref3.effect; + + if (typeof effect === 'function') { + var cleanupFn = effect({ + state: state, + name: name, + instance: instance, + options: options + }); + + var noopFn = function noopFn() {}; + + effectCleanupFns.push(cleanupFn || noopFn); + } + }); + } + + function cleanupModifierEffects() { + effectCleanupFns.forEach(function (fn) { + return fn(); + }); + effectCleanupFns = []; + } + + return instance; + }; +} + +var passive = { + passive: true +}; + +function effect$2(_ref) { + var state = _ref.state, + instance = _ref.instance, + options = _ref.options; + var _options$scroll = options.scroll, + scroll = _options$scroll === void 0 ? true : _options$scroll, + _options$resize = options.resize, + resize = _options$resize === void 0 ? true : _options$resize; + var window = getWindow(state.elements.popper); + var scrollParents = [].concat(state.scrollParents.reference, state.scrollParents.popper); + + if (scroll) { + scrollParents.forEach(function (scrollParent) { + scrollParent.addEventListener('scroll', instance.update, passive); + }); + } + + if (resize) { + window.addEventListener('resize', instance.update, passive); + } + + return function () { + if (scroll) { + scrollParents.forEach(function (scrollParent) { + scrollParent.removeEventListener('scroll', instance.update, passive); + }); + } + + if (resize) { + window.removeEventListener('resize', instance.update, passive); + } + }; +} // eslint-disable-next-line import/no-unused-modules + + +var eventListeners = { + name: 'eventListeners', + enabled: true, + phase: 'write', + fn: function fn() {}, + effect: effect$2, + data: {} +}; + +function popperOffsets(_ref) { + var state = _ref.state, + name = _ref.name; + // Offsets are the actual position the popper needs to have to be + // properly positioned near its reference element + // This is the most basic placement, and will be adjusted by + // the modifiers in the next step + state.modifiersData[name] = computeOffsets({ + reference: state.rects.reference, + element: state.rects.popper, + strategy: 'absolute', + placement: state.placement + }); +} // eslint-disable-next-line import/no-unused-modules + + +var popperOffsets$1 = { + name: 'popperOffsets', + enabled: true, + phase: 'read', + fn: popperOffsets, + data: {} +}; + +var unsetSides = { + top: 'auto', + right: 'auto', + bottom: 'auto', + left: 'auto' +}; // Round the offsets to the nearest suitable subpixel based on the DPR. +// Zooming can change the DPR, but it seems to report a value that will +// cleanly divide the values into the appropriate subpixels. + +function roundOffsetsByDPR(_ref) { + var x = _ref.x, + y = _ref.y; + var win = window; + var dpr = win.devicePixelRatio || 1; + return { + x: round(x * dpr) / dpr || 0, + y: round(y * dpr) / dpr || 0 + }; +} + +function mapToStyles(_ref2) { + var _Object$assign2; + + var popper = _ref2.popper, + popperRect = _ref2.popperRect, + placement = _ref2.placement, + variation = _ref2.variation, + offsets = _ref2.offsets, + position = _ref2.position, + gpuAcceleration = _ref2.gpuAcceleration, + adaptive = _ref2.adaptive, + roundOffsets = _ref2.roundOffsets, + isFixed = _ref2.isFixed; + + var _ref3 = roundOffsets === true ? roundOffsetsByDPR(offsets) : typeof roundOffsets === 'function' ? roundOffsets(offsets) : offsets, + _ref3$x = _ref3.x, + x = _ref3$x === void 0 ? 0 : _ref3$x, + _ref3$y = _ref3.y, + y = _ref3$y === void 0 ? 0 : _ref3$y; + + var hasX = offsets.hasOwnProperty('x'); + var hasY = offsets.hasOwnProperty('y'); + var sideX = left; + var sideY = top; + var win = window; + + if (adaptive) { + var offsetParent = getOffsetParent(popper); + var heightProp = 'clientHeight'; + var widthProp = 'clientWidth'; + + if (offsetParent === getWindow(popper)) { + offsetParent = getDocumentElement(popper); + + if (getComputedStyle(offsetParent).position !== 'static' && position === 'absolute') { + heightProp = 'scrollHeight'; + widthProp = 'scrollWidth'; + } + } // $FlowFixMe[incompatible-cast]: force type refinement, we compare offsetParent with window above, but Flow doesn't detect it + + + offsetParent = offsetParent; + + if (placement === top || (placement === left || placement === right) && variation === end) { + sideY = bottom; + var offsetY = isFixed && win.visualViewport ? win.visualViewport.height : // $FlowFixMe[prop-missing] + offsetParent[heightProp]; + y -= offsetY - popperRect.height; + y *= gpuAcceleration ? 1 : -1; + } + + if (placement === left || (placement === top || placement === bottom) && variation === end) { + sideX = right; + var offsetX = isFixed && win.visualViewport ? win.visualViewport.width : // $FlowFixMe[prop-missing] + offsetParent[widthProp]; + x -= offsetX - popperRect.width; + x *= gpuAcceleration ? 1 : -1; + } + } + + var commonStyles = Object.assign({ + position: position + }, adaptive && unsetSides); + + if (gpuAcceleration) { + var _Object$assign; + + return Object.assign({}, commonStyles, (_Object$assign = {}, _Object$assign[sideY] = hasY ? '0' : '', _Object$assign[sideX] = hasX ? '0' : '', _Object$assign.transform = (win.devicePixelRatio || 1) <= 1 ? "translate(" + x + "px, " + y + "px)" : "translate3d(" + x + "px, " + y + "px, 0)", _Object$assign)); + } + + return Object.assign({}, commonStyles, (_Object$assign2 = {}, _Object$assign2[sideY] = hasY ? y + "px" : '', _Object$assign2[sideX] = hasX ? x + "px" : '', _Object$assign2.transform = '', _Object$assign2)); +} + +function computeStyles(_ref4) { + var state = _ref4.state, + options = _ref4.options; + var _options$gpuAccelerat = options.gpuAcceleration, + gpuAcceleration = _options$gpuAccelerat === void 0 ? true : _options$gpuAccelerat, + _options$adaptive = options.adaptive, + adaptive = _options$adaptive === void 0 ? true : _options$adaptive, + _options$roundOffsets = options.roundOffsets, + roundOffsets = _options$roundOffsets === void 0 ? true : _options$roundOffsets; + + if (process.env.NODE_ENV !== "production") { + var transitionProperty = getComputedStyle(state.elements.popper).transitionProperty || ''; + + if (adaptive && ['transform', 'top', 'right', 'bottom', 'left'].some(function (property) { + return transitionProperty.indexOf(property) >= 0; + })) { + console.warn(['Popper: Detected CSS transitions on at least one of the following', 'CSS properties: "transform", "top", "right", "bottom", "left".', '\n\n', 'Disable the "computeStyles" modifier\'s `adaptive` option to allow', 'for smooth transitions, or remove these properties from the CSS', 'transition declaration on the popper element if only transitioning', 'opacity or background-color for example.', '\n\n', 'We recommend using the popper element as a wrapper around an inner', 'element that can have any CSS property transitioned for animations.'].join(' ')); + } + } + + var commonStyles = { + placement: getBasePlacement(state.placement), + variation: getVariation(state.placement), + popper: state.elements.popper, + popperRect: state.rects.popper, + gpuAcceleration: gpuAcceleration, + isFixed: state.options.strategy === 'fixed' + }; + + if (state.modifiersData.popperOffsets != null) { + state.styles.popper = Object.assign({}, state.styles.popper, mapToStyles(Object.assign({}, commonStyles, { + offsets: state.modifiersData.popperOffsets, + position: state.options.strategy, + adaptive: adaptive, + roundOffsets: roundOffsets + }))); + } + + if (state.modifiersData.arrow != null) { + state.styles.arrow = Object.assign({}, state.styles.arrow, mapToStyles(Object.assign({}, commonStyles, { + offsets: state.modifiersData.arrow, + position: 'absolute', + adaptive: false, + roundOffsets: roundOffsets + }))); + } + + state.attributes.popper = Object.assign({}, state.attributes.popper, { + 'data-popper-placement': state.placement + }); +} // eslint-disable-next-line import/no-unused-modules + + +var computeStyles$1 = { + name: 'computeStyles', + enabled: true, + phase: 'beforeWrite', + fn: computeStyles, + data: {} +}; + +// and applies them to the HTMLElements such as popper and arrow + +function applyStyles(_ref) { + var state = _ref.state; + Object.keys(state.elements).forEach(function (name) { + var style = state.styles[name] || {}; + var attributes = state.attributes[name] || {}; + var element = state.elements[name]; // arrow is optional + virtual elements + + if (!isHTMLElement(element) || !getNodeName(element)) { + return; + } // Flow doesn't support to extend this property, but it's the most + // effective way to apply styles to an HTMLElement + // $FlowFixMe[cannot-write] + + + Object.assign(element.style, style); + Object.keys(attributes).forEach(function (name) { + var value = attributes[name]; + + if (value === false) { + element.removeAttribute(name); + } else { + element.setAttribute(name, value === true ? '' : value); + } + }); + }); +} + +function effect$1(_ref2) { + var state = _ref2.state; + var initialStyles = { + popper: { + position: state.options.strategy, + left: '0', + top: '0', + margin: '0' + }, + arrow: { + position: 'absolute' + }, + reference: {} + }; + Object.assign(state.elements.popper.style, initialStyles.popper); + state.styles = initialStyles; + + if (state.elements.arrow) { + Object.assign(state.elements.arrow.style, initialStyles.arrow); + } + + return function () { + Object.keys(state.elements).forEach(function (name) { + var element = state.elements[name]; + var attributes = state.attributes[name] || {}; + var styleProperties = Object.keys(state.styles.hasOwnProperty(name) ? state.styles[name] : initialStyles[name]); // Set all values to an empty string to unset them + + var style = styleProperties.reduce(function (style, property) { + style[property] = ''; + return style; + }, {}); // arrow is optional + virtual elements + + if (!isHTMLElement(element) || !getNodeName(element)) { + return; + } + + Object.assign(element.style, style); + Object.keys(attributes).forEach(function (attribute) { + element.removeAttribute(attribute); + }); + }); + }; +} // eslint-disable-next-line import/no-unused-modules + + +var applyStyles$1 = { + name: 'applyStyles', + enabled: true, + phase: 'write', + fn: applyStyles, + effect: effect$1, + requires: ['computeStyles'] +}; + +function distanceAndSkiddingToXY(placement, rects, offset) { + var basePlacement = getBasePlacement(placement); + var invertDistance = [left, top].indexOf(basePlacement) >= 0 ? -1 : 1; + + var _ref = typeof offset === 'function' ? offset(Object.assign({}, rects, { + placement: placement + })) : offset, + skidding = _ref[0], + distance = _ref[1]; + + skidding = skidding || 0; + distance = (distance || 0) * invertDistance; + return [left, right].indexOf(basePlacement) >= 0 ? { + x: distance, + y: skidding + } : { + x: skidding, + y: distance + }; +} + +function offset(_ref2) { + var state = _ref2.state, + options = _ref2.options, + name = _ref2.name; + var _options$offset = options.offset, + offset = _options$offset === void 0 ? [0, 0] : _options$offset; + var data = placements.reduce(function (acc, placement) { + acc[placement] = distanceAndSkiddingToXY(placement, state.rects, offset); + return acc; + }, {}); + var _data$state$placement = data[state.placement], + x = _data$state$placement.x, + y = _data$state$placement.y; + + if (state.modifiersData.popperOffsets != null) { + state.modifiersData.popperOffsets.x += x; + state.modifiersData.popperOffsets.y += y; + } + + state.modifiersData[name] = data; +} // eslint-disable-next-line import/no-unused-modules + + +var offset$1 = { + name: 'offset', + enabled: true, + phase: 'main', + requires: ['popperOffsets'], + fn: offset +}; + +var hash$1 = { + left: 'right', + right: 'left', + bottom: 'top', + top: 'bottom' +}; +function getOppositePlacement(placement) { + return placement.replace(/left|right|bottom|top/g, function (matched) { + return hash$1[matched]; + }); +} + +var hash = { + start: 'end', + end: 'start' +}; +function getOppositeVariationPlacement(placement) { + return placement.replace(/start|end/g, function (matched) { + return hash[matched]; + }); +} + +function computeAutoPlacement(state, options) { + if (options === void 0) { + options = {}; + } + + var _options = options, + placement = _options.placement, + boundary = _options.boundary, + rootBoundary = _options.rootBoundary, + padding = _options.padding, + flipVariations = _options.flipVariations, + _options$allowedAutoP = _options.allowedAutoPlacements, + allowedAutoPlacements = _options$allowedAutoP === void 0 ? placements : _options$allowedAutoP; + var variation = getVariation(placement); + var placements$1 = variation ? flipVariations ? variationPlacements : variationPlacements.filter(function (placement) { + return getVariation(placement) === variation; + }) : basePlacements; + var allowedPlacements = placements$1.filter(function (placement) { + return allowedAutoPlacements.indexOf(placement) >= 0; + }); + + if (allowedPlacements.length === 0) { + allowedPlacements = placements$1; + + if (process.env.NODE_ENV !== "production") { + console.error(['Popper: The `allowedAutoPlacements` option did not allow any', 'placements. Ensure the `placement` option matches the variation', 'of the allowed placements.', 'For example, "auto" cannot be used to allow "bottom-start".', 'Use "auto-start" instead.'].join(' ')); + } + } // $FlowFixMe[incompatible-type]: Flow seems to have problems with two array unions... + + + var overflows = allowedPlacements.reduce(function (acc, placement) { + acc[placement] = detectOverflow(state, { + placement: placement, + boundary: boundary, + rootBoundary: rootBoundary, + padding: padding + })[getBasePlacement(placement)]; + return acc; + }, {}); + return Object.keys(overflows).sort(function (a, b) { + return overflows[a] - overflows[b]; + }); +} + +function getExpandedFallbackPlacements(placement) { + if (getBasePlacement(placement) === auto) { + return []; + } + + var oppositePlacement = getOppositePlacement(placement); + return [getOppositeVariationPlacement(placement), oppositePlacement, getOppositeVariationPlacement(oppositePlacement)]; +} + +function flip(_ref) { + var state = _ref.state, + options = _ref.options, + name = _ref.name; + + if (state.modifiersData[name]._skip) { + return; + } + + var _options$mainAxis = options.mainAxis, + checkMainAxis = _options$mainAxis === void 0 ? true : _options$mainAxis, + _options$altAxis = options.altAxis, + checkAltAxis = _options$altAxis === void 0 ? true : _options$altAxis, + specifiedFallbackPlacements = options.fallbackPlacements, + padding = options.padding, + boundary = options.boundary, + rootBoundary = options.rootBoundary, + altBoundary = options.altBoundary, + _options$flipVariatio = options.flipVariations, + flipVariations = _options$flipVariatio === void 0 ? true : _options$flipVariatio, + allowedAutoPlacements = options.allowedAutoPlacements; + var preferredPlacement = state.options.placement; + var basePlacement = getBasePlacement(preferredPlacement); + var isBasePlacement = basePlacement === preferredPlacement; + var fallbackPlacements = specifiedFallbackPlacements || (isBasePlacement || !flipVariations ? [getOppositePlacement(preferredPlacement)] : getExpandedFallbackPlacements(preferredPlacement)); + var placements = [preferredPlacement].concat(fallbackPlacements).reduce(function (acc, placement) { + return acc.concat(getBasePlacement(placement) === auto ? computeAutoPlacement(state, { + placement: placement, + boundary: boundary, + rootBoundary: rootBoundary, + padding: padding, + flipVariations: flipVariations, + allowedAutoPlacements: allowedAutoPlacements + }) : placement); + }, []); + var referenceRect = state.rects.reference; + var popperRect = state.rects.popper; + var checksMap = new Map(); + var makeFallbackChecks = true; + var firstFittingPlacement = placements[0]; + + for (var i = 0; i < placements.length; i++) { + var placement = placements[i]; + + var _basePlacement = getBasePlacement(placement); + + var isStartVariation = getVariation(placement) === start; + var isVertical = [top, bottom].indexOf(_basePlacement) >= 0; + var len = isVertical ? 'width' : 'height'; + var overflow = detectOverflow(state, { + placement: placement, + boundary: boundary, + rootBoundary: rootBoundary, + altBoundary: altBoundary, + padding: padding + }); + var mainVariationSide = isVertical ? isStartVariation ? right : left : isStartVariation ? bottom : top; + + if (referenceRect[len] > popperRect[len]) { + mainVariationSide = getOppositePlacement(mainVariationSide); + } + + var altVariationSide = getOppositePlacement(mainVariationSide); + var checks = []; + + if (checkMainAxis) { + checks.push(overflow[_basePlacement] <= 0); + } + + if (checkAltAxis) { + checks.push(overflow[mainVariationSide] <= 0, overflow[altVariationSide] <= 0); + } + + if (checks.every(function (check) { + return check; + })) { + firstFittingPlacement = placement; + makeFallbackChecks = false; + break; + } + + checksMap.set(placement, checks); + } + + if (makeFallbackChecks) { + // `2` may be desired in some cases – research later + var numberOfChecks = flipVariations ? 3 : 1; + + var _loop = function _loop(_i) { + var fittingPlacement = placements.find(function (placement) { + var checks = checksMap.get(placement); + + if (checks) { + return checks.slice(0, _i).every(function (check) { + return check; + }); + } + }); + + if (fittingPlacement) { + firstFittingPlacement = fittingPlacement; + return "break"; + } + }; + + for (var _i = numberOfChecks; _i > 0; _i--) { + var _ret = _loop(_i); + + if (_ret === "break") break; + } + } + + if (state.placement !== firstFittingPlacement) { + state.modifiersData[name]._skip = true; + state.placement = firstFittingPlacement; + state.reset = true; + } +} // eslint-disable-next-line import/no-unused-modules + + +var flip$1 = { + name: 'flip', + enabled: true, + phase: 'main', + fn: flip, + requiresIfExists: ['offset'], + data: { + _skip: false + } +}; + +function getAltAxis(axis) { + return axis === 'x' ? 'y' : 'x'; +} + +function within(min$1, value, max$1) { + return max(min$1, min(value, max$1)); +} +function withinMaxClamp(min, value, max) { + var v = within(min, value, max); + return v > max ? max : v; +} + +function preventOverflow(_ref) { + var state = _ref.state, + options = _ref.options, + name = _ref.name; + var _options$mainAxis = options.mainAxis, + checkMainAxis = _options$mainAxis === void 0 ? true : _options$mainAxis, + _options$altAxis = options.altAxis, + checkAltAxis = _options$altAxis === void 0 ? false : _options$altAxis, + boundary = options.boundary, + rootBoundary = options.rootBoundary, + altBoundary = options.altBoundary, + padding = options.padding, + _options$tether = options.tether, + tether = _options$tether === void 0 ? true : _options$tether, + _options$tetherOffset = options.tetherOffset, + tetherOffset = _options$tetherOffset === void 0 ? 0 : _options$tetherOffset; + var overflow = detectOverflow(state, { + boundary: boundary, + rootBoundary: rootBoundary, + padding: padding, + altBoundary: altBoundary + }); + var basePlacement = getBasePlacement(state.placement); + var variation = getVariation(state.placement); + var isBasePlacement = !variation; + var mainAxis = getMainAxisFromPlacement(basePlacement); + var altAxis = getAltAxis(mainAxis); + var popperOffsets = state.modifiersData.popperOffsets; + var referenceRect = state.rects.reference; + var popperRect = state.rects.popper; + var tetherOffsetValue = typeof tetherOffset === 'function' ? tetherOffset(Object.assign({}, state.rects, { + placement: state.placement + })) : tetherOffset; + var normalizedTetherOffsetValue = typeof tetherOffsetValue === 'number' ? { + mainAxis: tetherOffsetValue, + altAxis: tetherOffsetValue + } : Object.assign({ + mainAxis: 0, + altAxis: 0 + }, tetherOffsetValue); + var offsetModifierState = state.modifiersData.offset ? state.modifiersData.offset[state.placement] : null; + var data = { + x: 0, + y: 0 + }; + + if (!popperOffsets) { + return; + } + + if (checkMainAxis) { + var _offsetModifierState$; + + var mainSide = mainAxis === 'y' ? top : left; + var altSide = mainAxis === 'y' ? bottom : right; + var len = mainAxis === 'y' ? 'height' : 'width'; + var offset = popperOffsets[mainAxis]; + var min$1 = offset + overflow[mainSide]; + var max$1 = offset - overflow[altSide]; + var additive = tether ? -popperRect[len] / 2 : 0; + var minLen = variation === start ? referenceRect[len] : popperRect[len]; + var maxLen = variation === start ? -popperRect[len] : -referenceRect[len]; // We need to include the arrow in the calculation so the arrow doesn't go + // outside the reference bounds + + var arrowElement = state.elements.arrow; + var arrowRect = tether && arrowElement ? getLayoutRect(arrowElement) : { + width: 0, + height: 0 + }; + var arrowPaddingObject = state.modifiersData['arrow#persistent'] ? state.modifiersData['arrow#persistent'].padding : getFreshSideObject(); + var arrowPaddingMin = arrowPaddingObject[mainSide]; + var arrowPaddingMax = arrowPaddingObject[altSide]; // If the reference length is smaller than the arrow length, we don't want + // to include its full size in the calculation. If the reference is small + // and near the edge of a boundary, the popper can overflow even if the + // reference is not overflowing as well (e.g. virtual elements with no + // width or height) + + var arrowLen = within(0, referenceRect[len], arrowRect[len]); + var minOffset = isBasePlacement ? referenceRect[len] / 2 - additive - arrowLen - arrowPaddingMin - normalizedTetherOffsetValue.mainAxis : minLen - arrowLen - arrowPaddingMin - normalizedTetherOffsetValue.mainAxis; + var maxOffset = isBasePlacement ? -referenceRect[len] / 2 + additive + arrowLen + arrowPaddingMax + normalizedTetherOffsetValue.mainAxis : maxLen + arrowLen + arrowPaddingMax + normalizedTetherOffsetValue.mainAxis; + var arrowOffsetParent = state.elements.arrow && getOffsetParent(state.elements.arrow); + var clientOffset = arrowOffsetParent ? mainAxis === 'y' ? arrowOffsetParent.clientTop || 0 : arrowOffsetParent.clientLeft || 0 : 0; + var offsetModifierValue = (_offsetModifierState$ = offsetModifierState == null ? void 0 : offsetModifierState[mainAxis]) != null ? _offsetModifierState$ : 0; + var tetherMin = offset + minOffset - offsetModifierValue - clientOffset; + var tetherMax = offset + maxOffset - offsetModifierValue; + var preventedOffset = within(tether ? min(min$1, tetherMin) : min$1, offset, tether ? max(max$1, tetherMax) : max$1); + popperOffsets[mainAxis] = preventedOffset; + data[mainAxis] = preventedOffset - offset; + } + + if (checkAltAxis) { + var _offsetModifierState$2; + + var _mainSide = mainAxis === 'x' ? top : left; + + var _altSide = mainAxis === 'x' ? bottom : right; + + var _offset = popperOffsets[altAxis]; + + var _len = altAxis === 'y' ? 'height' : 'width'; + + var _min = _offset + overflow[_mainSide]; + + var _max = _offset - overflow[_altSide]; + + var isOriginSide = [top, left].indexOf(basePlacement) !== -1; + + var _offsetModifierValue = (_offsetModifierState$2 = offsetModifierState == null ? void 0 : offsetModifierState[altAxis]) != null ? _offsetModifierState$2 : 0; + + var _tetherMin = isOriginSide ? _min : _offset - referenceRect[_len] - popperRect[_len] - _offsetModifierValue + normalizedTetherOffsetValue.altAxis; + + var _tetherMax = isOriginSide ? _offset + referenceRect[_len] + popperRect[_len] - _offsetModifierValue - normalizedTetherOffsetValue.altAxis : _max; + + var _preventedOffset = tether && isOriginSide ? withinMaxClamp(_tetherMin, _offset, _tetherMax) : within(tether ? _tetherMin : _min, _offset, tether ? _tetherMax : _max); + + popperOffsets[altAxis] = _preventedOffset; + data[altAxis] = _preventedOffset - _offset; + } + + state.modifiersData[name] = data; +} // eslint-disable-next-line import/no-unused-modules + + +var preventOverflow$1 = { + name: 'preventOverflow', + enabled: true, + phase: 'main', + fn: preventOverflow, + requiresIfExists: ['offset'] +}; + +var toPaddingObject = function toPaddingObject(padding, state) { + padding = typeof padding === 'function' ? padding(Object.assign({}, state.rects, { + placement: state.placement + })) : padding; + return mergePaddingObject(typeof padding !== 'number' ? padding : expandToHashMap(padding, basePlacements)); +}; + +function arrow(_ref) { + var _state$modifiersData$; + + var state = _ref.state, + name = _ref.name, + options = _ref.options; + var arrowElement = state.elements.arrow; + var popperOffsets = state.modifiersData.popperOffsets; + var basePlacement = getBasePlacement(state.placement); + var axis = getMainAxisFromPlacement(basePlacement); + var isVertical = [left, right].indexOf(basePlacement) >= 0; + var len = isVertical ? 'height' : 'width'; + + if (!arrowElement || !popperOffsets) { + return; + } + + var paddingObject = toPaddingObject(options.padding, state); + var arrowRect = getLayoutRect(arrowElement); + var minProp = axis === 'y' ? top : left; + var maxProp = axis === 'y' ? bottom : right; + var endDiff = state.rects.reference[len] + state.rects.reference[axis] - popperOffsets[axis] - state.rects.popper[len]; + var startDiff = popperOffsets[axis] - state.rects.reference[axis]; + var arrowOffsetParent = getOffsetParent(arrowElement); + var clientSize = arrowOffsetParent ? axis === 'y' ? arrowOffsetParent.clientHeight || 0 : arrowOffsetParent.clientWidth || 0 : 0; + var centerToReference = endDiff / 2 - startDiff / 2; // Make sure the arrow doesn't overflow the popper if the center point is + // outside of the popper bounds + + var min = paddingObject[minProp]; + var max = clientSize - arrowRect[len] - paddingObject[maxProp]; + var center = clientSize / 2 - arrowRect[len] / 2 + centerToReference; + var offset = within(min, center, max); // Prevents breaking syntax highlighting... + + var axisProp = axis; + state.modifiersData[name] = (_state$modifiersData$ = {}, _state$modifiersData$[axisProp] = offset, _state$modifiersData$.centerOffset = offset - center, _state$modifiersData$); +} + +function effect(_ref2) { + var state = _ref2.state, + options = _ref2.options; + var _options$element = options.element, + arrowElement = _options$element === void 0 ? '[data-popper-arrow]' : _options$element; + + if (arrowElement == null) { + return; + } // CSS selector + + + if (typeof arrowElement === 'string') { + arrowElement = state.elements.popper.querySelector(arrowElement); + + if (!arrowElement) { + return; + } + } + + if (process.env.NODE_ENV !== "production") { + if (!isHTMLElement(arrowElement)) { + console.error(['Popper: "arrow" element must be an HTMLElement (not an SVGElement).', 'To use an SVG arrow, wrap it in an HTMLElement that will be used as', 'the arrow.'].join(' ')); + } + } + + if (!contains(state.elements.popper, arrowElement)) { + if (process.env.NODE_ENV !== "production") { + console.error(['Popper: "arrow" modifier\'s `element` must be a child of the popper', 'element.'].join(' ')); + } + + return; + } + + state.elements.arrow = arrowElement; +} // eslint-disable-next-line import/no-unused-modules + + +var arrow$1 = { + name: 'arrow', + enabled: true, + phase: 'main', + fn: arrow, + effect: effect, + requires: ['popperOffsets'], + requiresIfExists: ['preventOverflow'] +}; + +function getSideOffsets(overflow, rect, preventedOffsets) { + if (preventedOffsets === void 0) { + preventedOffsets = { + x: 0, + y: 0 + }; + } + + return { + top: overflow.top - rect.height - preventedOffsets.y, + right: overflow.right - rect.width + preventedOffsets.x, + bottom: overflow.bottom - rect.height + preventedOffsets.y, + left: overflow.left - rect.width - preventedOffsets.x + }; +} + +function isAnySideFullyClipped(overflow) { + return [top, right, bottom, left].some(function (side) { + return overflow[side] >= 0; + }); +} + +function hide(_ref) { + var state = _ref.state, + name = _ref.name; + var referenceRect = state.rects.reference; + var popperRect = state.rects.popper; + var preventedOffsets = state.modifiersData.preventOverflow; + var referenceOverflow = detectOverflow(state, { + elementContext: 'reference' + }); + var popperAltOverflow = detectOverflow(state, { + altBoundary: true + }); + var referenceClippingOffsets = getSideOffsets(referenceOverflow, referenceRect); + var popperEscapeOffsets = getSideOffsets(popperAltOverflow, popperRect, preventedOffsets); + var isReferenceHidden = isAnySideFullyClipped(referenceClippingOffsets); + var hasPopperEscaped = isAnySideFullyClipped(popperEscapeOffsets); + state.modifiersData[name] = { + referenceClippingOffsets: referenceClippingOffsets, + popperEscapeOffsets: popperEscapeOffsets, + isReferenceHidden: isReferenceHidden, + hasPopperEscaped: hasPopperEscaped + }; + state.attributes.popper = Object.assign({}, state.attributes.popper, { + 'data-popper-reference-hidden': isReferenceHidden, + 'data-popper-escaped': hasPopperEscaped + }); +} // eslint-disable-next-line import/no-unused-modules + + +var hide$1 = { + name: 'hide', + enabled: true, + phase: 'main', + requiresIfExists: ['preventOverflow'], + fn: hide +}; + +var defaultModifiers$1 = [eventListeners, popperOffsets$1, computeStyles$1, applyStyles$1]; +var createPopper$1 = /*#__PURE__*/popperGenerator({ + defaultModifiers: defaultModifiers$1 +}); // eslint-disable-next-line import/no-unused-modules + +var defaultModifiers = [eventListeners, popperOffsets$1, computeStyles$1, applyStyles$1, offset$1, flip$1, preventOverflow$1, arrow$1, hide$1]; +var createPopper = /*#__PURE__*/popperGenerator({ + defaultModifiers: defaultModifiers +}); // eslint-disable-next-line import/no-unused-modules + +exports.applyStyles = applyStyles$1; +exports.arrow = arrow$1; +exports.computeStyles = computeStyles$1; +exports.createPopper = createPopper; +exports.createPopperLite = createPopper$1; +exports.defaultModifiers = defaultModifiers; +exports.detectOverflow = detectOverflow; +exports.eventListeners = eventListeners; +exports.flip = flip$1; +exports.hide = hide$1; +exports.offset = offset$1; +exports.popperGenerator = popperGenerator; +exports.popperOffsets = popperOffsets$1; +exports.preventOverflow = preventOverflow$1; +//# sourceMappingURL=popper.js.map |