| /**! |
| * @fileOverview Kickass library to create and place poppers near their reference elements. |
| * @version 1.16.0 |
| * @license |
| * Copyright (c) 2016 Federico Zivolo and contributors |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| (function (global, factory) { |
| typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) : |
| typeof define === 'function' && define.amd ? define(['exports'], factory) : |
| (factory((global.PopperUtils = {}))); |
| }(this, (function (exports) { 'use strict'; |
| |
| /** |
| * Get CSS computed property of the given element |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Eement} element |
| * @argument {String} property |
| */ |
| function getStyleComputedProperty(element, property) { |
| if (element.nodeType !== 1) { |
| return []; |
| } |
| // NOTE: 1 DOM access here |
| var window = element.ownerDocument.defaultView; |
| var css = window.getComputedStyle(element, null); |
| return property ? css[property] : css; |
| } |
| |
| /** |
| * Returns the parentNode or the host of the element |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Element} element |
| * @returns {Element} parent |
| */ |
| function getParentNode(element) { |
| if (element.nodeName === 'HTML') { |
| return element; |
| } |
| return element.parentNode || element.host; |
| } |
| |
| /** |
| * Returns the scrolling parent of the given element |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Element} element |
| * @returns {Element} scroll parent |
| */ |
| function getScrollParent(element) { |
| // Return body, `getScroll` will take care to get the correct `scrollTop` from it |
| if (!element) { |
| return document.body; |
| } |
| |
| switch (element.nodeName) { |
| case 'HTML': |
| case 'BODY': |
| return element.ownerDocument.body; |
| case '#document': |
| return element.body; |
| } |
| |
| // Firefox want us to check `-x` and `-y` variations as well |
| |
| var _getStyleComputedProp = getStyleComputedProperty(element), |
| overflow = _getStyleComputedProp.overflow, |
| overflowX = _getStyleComputedProp.overflowX, |
| overflowY = _getStyleComputedProp.overflowY; |
| |
| if (/(auto|scroll|overlay)/.test(overflow + overflowY + overflowX)) { |
| return element; |
| } |
| |
| return getScrollParent(getParentNode(element)); |
| } |
| |
| /** |
| * Returns the reference node of the reference object, or the reference object itself. |
| * @method |
| * @memberof Popper.Utils |
| * @param {Element|Object} reference - the reference element (the popper will be relative to this) |
| * @returns {Element} parent |
| */ |
| function getReferenceNode(reference) { |
| return reference && reference.referenceNode ? reference.referenceNode : reference; |
| } |
| |
| var isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined' && typeof navigator !== 'undefined'; |
| |
| var isIE11 = isBrowser && !!(window.MSInputMethodContext && document.documentMode); |
| var isIE10 = isBrowser && /MSIE 10/.test(navigator.userAgent); |
| |
| /** |
| * Determines if the browser is Internet Explorer |
| * @method |
| * @memberof Popper.Utils |
| * @param {Number} version to check |
| * @returns {Boolean} isIE |
| */ |
| function isIE(version) { |
| if (version === 11) { |
| return isIE11; |
| } |
| if (version === 10) { |
| return isIE10; |
| } |
| return isIE11 || isIE10; |
| } |
| |
| /** |
| * Returns the offset parent of the given element |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Element} element |
| * @returns {Element} offset parent |
| */ |
| function getOffsetParent(element) { |
| if (!element) { |
| return document.documentElement; |
| } |
| |
| var noOffsetParent = isIE(10) ? document.body : null; |
| |
| // NOTE: 1 DOM access here |
| var offsetParent = element.offsetParent || null; |
| // Skip hidden elements which don't have an offsetParent |
| while (offsetParent === noOffsetParent && element.nextElementSibling) { |
| offsetParent = (element = element.nextElementSibling).offsetParent; |
| } |
| |
| var nodeName = offsetParent && offsetParent.nodeName; |
| |
| if (!nodeName || nodeName === 'BODY' || nodeName === 'HTML') { |
| return element ? element.ownerDocument.documentElement : document.documentElement; |
| } |
| |
| // .offsetParent will return the closest TH, TD or TABLE in case |
| // no offsetParent is present, I hate this job... |
| if (['TH', 'TD', 'TABLE'].indexOf(offsetParent.nodeName) !== -1 && getStyleComputedProperty(offsetParent, 'position') === 'static') { |
| return getOffsetParent(offsetParent); |
| } |
| |
| return offsetParent; |
| } |
| |
| function isOffsetContainer(element) { |
| var nodeName = element.nodeName; |
| |
| if (nodeName === 'BODY') { |
| return false; |
| } |
| return nodeName === 'HTML' || getOffsetParent(element.firstElementChild) === element; |
| } |
| |
| /** |
| * Finds the root node (document, shadowDOM root) of the given element |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Element} node |
| * @returns {Element} root node |
| */ |
| function getRoot(node) { |
| if (node.parentNode !== null) { |
| return getRoot(node.parentNode); |
| } |
| |
| return node; |
| } |
| |
| /** |
| * Finds the offset parent common to the two provided nodes |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Element} element1 |
| * @argument {Element} element2 |
| * @returns {Element} common offset parent |
| */ |
| function findCommonOffsetParent(element1, element2) { |
| // This check is needed to avoid errors in case one of the elements isn't defined for any reason |
| if (!element1 || !element1.nodeType || !element2 || !element2.nodeType) { |
| return document.documentElement; |
| } |
| |
| // Here we make sure to give as "start" the element that comes first in the DOM |
| var order = element1.compareDocumentPosition(element2) & Node.DOCUMENT_POSITION_FOLLOWING; |
| var start = order ? element1 : element2; |
| var end = order ? element2 : element1; |
| |
| // Get common ancestor container |
| var range = document.createRange(); |
| range.setStart(start, 0); |
| range.setEnd(end, 0); |
| var commonAncestorContainer = range.commonAncestorContainer; |
| |
| // Both nodes are inside #document |
| |
| if (element1 !== commonAncestorContainer && element2 !== commonAncestorContainer || start.contains(end)) { |
| if (isOffsetContainer(commonAncestorContainer)) { |
| return commonAncestorContainer; |
| } |
| |
| return getOffsetParent(commonAncestorContainer); |
| } |
| |
| // one of the nodes is inside shadowDOM, find which one |
| var element1root = getRoot(element1); |
| if (element1root.host) { |
| return findCommonOffsetParent(element1root.host, element2); |
| } else { |
| return findCommonOffsetParent(element1, getRoot(element2).host); |
| } |
| } |
| |
| /** |
| * Gets the scroll value of the given element in the given side (top and left) |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Element} element |
| * @argument {String} side `top` or `left` |
| * @returns {number} amount of scrolled pixels |
| */ |
| function getScroll(element) { |
| var side = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'top'; |
| |
| var upperSide = side === 'top' ? 'scrollTop' : 'scrollLeft'; |
| var nodeName = element.nodeName; |
| |
| if (nodeName === 'BODY' || nodeName === 'HTML') { |
| var html = element.ownerDocument.documentElement; |
| var scrollingElement = element.ownerDocument.scrollingElement || html; |
| return scrollingElement[upperSide]; |
| } |
| |
| return element[upperSide]; |
| } |
| |
| /* |
| * Sum or subtract the element scroll values (left and top) from a given rect object |
| * @method |
| * @memberof Popper.Utils |
| * @param {Object} rect - Rect object you want to change |
| * @param {HTMLElement} element - The element from the function reads the scroll values |
| * @param {Boolean} subtract - set to true if you want to subtract the scroll values |
| * @return {Object} rect - The modifier rect object |
| */ |
| function includeScroll(rect, element) { |
| var subtract = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false; |
| |
| var scrollTop = getScroll(element, 'top'); |
| var scrollLeft = getScroll(element, 'left'); |
| var modifier = subtract ? -1 : 1; |
| rect.top += scrollTop * modifier; |
| rect.bottom += scrollTop * modifier; |
| rect.left += scrollLeft * modifier; |
| rect.right += scrollLeft * modifier; |
| return rect; |
| } |
| |
| /* |
| * Helper to detect borders of a given element |
| * @method |
| * @memberof Popper.Utils |
| * @param {CSSStyleDeclaration} styles |
| * Result of `getStyleComputedProperty` on the given element |
| * @param {String} axis - `x` or `y` |
| * @return {number} borders - The borders size of the given axis |
| */ |
| |
| function getBordersSize(styles, axis) { |
| var sideA = axis === 'x' ? 'Left' : 'Top'; |
| var sideB = sideA === 'Left' ? 'Right' : 'Bottom'; |
| |
| return parseFloat(styles['border' + sideA + 'Width'], 10) + parseFloat(styles['border' + sideB + 'Width'], 10); |
| } |
| |
| function getSize(axis, body, html, computedStyle) { |
| return Math.max(body['offset' + axis], body['scroll' + axis], html['client' + axis], html['offset' + axis], html['scroll' + axis], isIE(10) ? parseInt(html['offset' + axis]) + parseInt(computedStyle['margin' + (axis === 'Height' ? 'Top' : 'Left')]) + parseInt(computedStyle['margin' + (axis === 'Height' ? 'Bottom' : 'Right')]) : 0); |
| } |
| |
| function getWindowSizes(document) { |
| var body = document.body; |
| var html = document.documentElement; |
| var computedStyle = isIE(10) && getComputedStyle(html); |
| |
| return { |
| height: getSize('Height', body, html, computedStyle), |
| width: getSize('Width', body, html, computedStyle) |
| }; |
| } |
| |
| var _extends = Object.assign || function (target) { |
| for (var i = 1; i < arguments.length; i++) { |
| var source = arguments[i]; |
| |
| for (var key in source) { |
| if (Object.prototype.hasOwnProperty.call(source, key)) { |
| target[key] = source[key]; |
| } |
| } |
| } |
| |
| return target; |
| }; |
| |
| /** |
| * Given element offsets, generate an output similar to getBoundingClientRect |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Object} offsets |
| * @returns {Object} ClientRect like output |
| */ |
| function getClientRect(offsets) { |
| return _extends({}, offsets, { |
| right: offsets.left + offsets.width, |
| bottom: offsets.top + offsets.height |
| }); |
| } |
| |
| /** |
| * Get bounding client rect of given element |
| * @method |
| * @memberof Popper.Utils |
| * @param {HTMLElement} element |
| * @return {Object} client rect |
| */ |
| function getBoundingClientRect(element) { |
| var rect = {}; |
| |
| // IE10 10 FIX: Please, don't ask, the element isn't |
| // considered in DOM in some circumstances... |
| // This isn't reproducible in IE10 compatibility mode of IE11 |
| try { |
| if (isIE(10)) { |
| rect = element.getBoundingClientRect(); |
| var scrollTop = getScroll(element, 'top'); |
| var scrollLeft = getScroll(element, 'left'); |
| rect.top += scrollTop; |
| rect.left += scrollLeft; |
| rect.bottom += scrollTop; |
| rect.right += scrollLeft; |
| } else { |
| rect = element.getBoundingClientRect(); |
| } |
| } catch (e) {} |
| |
| var result = { |
| left: rect.left, |
| top: rect.top, |
| width: rect.right - rect.left, |
| height: rect.bottom - rect.top |
| }; |
| |
| // subtract scrollbar size from sizes |
| var sizes = element.nodeName === 'HTML' ? getWindowSizes(element.ownerDocument) : {}; |
| var width = sizes.width || element.clientWidth || result.width; |
| var height = sizes.height || element.clientHeight || result.height; |
| |
| var horizScrollbar = element.offsetWidth - width; |
| var vertScrollbar = element.offsetHeight - height; |
| |
| // if an hypothetical scrollbar is detected, we must be sure it's not a `border` |
| // we make this check conditional for performance reasons |
| if (horizScrollbar || vertScrollbar) { |
| var styles = getStyleComputedProperty(element); |
| horizScrollbar -= getBordersSize(styles, 'x'); |
| vertScrollbar -= getBordersSize(styles, 'y'); |
| |
| result.width -= horizScrollbar; |
| result.height -= vertScrollbar; |
| } |
| |
| return getClientRect(result); |
| } |
| |
| function getOffsetRectRelativeToArbitraryNode(children, parent) { |
| var fixedPosition = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false; |
| |
| var isIE10 = isIE(10); |
| var isHTML = parent.nodeName === 'HTML'; |
| var childrenRect = getBoundingClientRect(children); |
| var parentRect = getBoundingClientRect(parent); |
| var scrollParent = getScrollParent(children); |
| |
| var styles = getStyleComputedProperty(parent); |
| var borderTopWidth = parseFloat(styles.borderTopWidth, 10); |
| var borderLeftWidth = parseFloat(styles.borderLeftWidth, 10); |
| |
| // In cases where the parent is fixed, we must ignore negative scroll in offset calc |
| if (fixedPosition && isHTML) { |
| parentRect.top = Math.max(parentRect.top, 0); |
| parentRect.left = Math.max(parentRect.left, 0); |
| } |
| var offsets = getClientRect({ |
| top: childrenRect.top - parentRect.top - borderTopWidth, |
| left: childrenRect.left - parentRect.left - borderLeftWidth, |
| width: childrenRect.width, |
| height: childrenRect.height |
| }); |
| offsets.marginTop = 0; |
| offsets.marginLeft = 0; |
| |
| // Subtract margins of documentElement in case it's being used as parent |
| // we do this only on HTML because it's the only element that behaves |
| // differently when margins are applied to it. The margins are included in |
| // the box of the documentElement, in the other cases not. |
| if (!isIE10 && isHTML) { |
| var marginTop = parseFloat(styles.marginTop, 10); |
| var marginLeft = parseFloat(styles.marginLeft, 10); |
| |
| offsets.top -= borderTopWidth - marginTop; |
| offsets.bottom -= borderTopWidth - marginTop; |
| offsets.left -= borderLeftWidth - marginLeft; |
| offsets.right -= borderLeftWidth - marginLeft; |
| |
| // Attach marginTop and marginLeft because in some circumstances we may need them |
| offsets.marginTop = marginTop; |
| offsets.marginLeft = marginLeft; |
| } |
| |
| if (isIE10 && !fixedPosition ? parent.contains(scrollParent) : parent === scrollParent && scrollParent.nodeName !== 'BODY') { |
| offsets = includeScroll(offsets, parent); |
| } |
| |
| return offsets; |
| } |
| |
| function getViewportOffsetRectRelativeToArtbitraryNode(element) { |
| var excludeScroll = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false; |
| |
| var html = element.ownerDocument.documentElement; |
| var relativeOffset = getOffsetRectRelativeToArbitraryNode(element, html); |
| var width = Math.max(html.clientWidth, window.innerWidth || 0); |
| var height = Math.max(html.clientHeight, window.innerHeight || 0); |
| |
| var scrollTop = !excludeScroll ? getScroll(html) : 0; |
| var scrollLeft = !excludeScroll ? getScroll(html, 'left') : 0; |
| |
| var offset = { |
| top: scrollTop - relativeOffset.top + relativeOffset.marginTop, |
| left: scrollLeft - relativeOffset.left + relativeOffset.marginLeft, |
| width: width, |
| height: height |
| }; |
| |
| return getClientRect(offset); |
| } |
| |
| /** |
| * Check if the given element is fixed or is inside a fixed parent |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Element} element |
| * @argument {Element} customContainer |
| * @returns {Boolean} answer to "isFixed?" |
| */ |
| function isFixed(element) { |
| var nodeName = element.nodeName; |
| if (nodeName === 'BODY' || nodeName === 'HTML') { |
| return false; |
| } |
| if (getStyleComputedProperty(element, 'position') === 'fixed') { |
| return true; |
| } |
| var parentNode = getParentNode(element); |
| if (!parentNode) { |
| return false; |
| } |
| return isFixed(parentNode); |
| } |
| |
| /** |
| * Finds the first parent of an element that has a transformed property defined |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Element} element |
| * @returns {Element} first transformed parent or documentElement |
| */ |
| |
| function getFixedPositionOffsetParent(element) { |
| // This check is needed to avoid errors in case one of the elements isn't defined for any reason |
| if (!element || !element.parentElement || isIE()) { |
| return document.documentElement; |
| } |
| var el = element.parentElement; |
| while (el && getStyleComputedProperty(el, 'transform') === 'none') { |
| el = el.parentElement; |
| } |
| return el || document.documentElement; |
| } |
| |
| /** |
| * Computed the boundaries limits and return them |
| * @method |
| * @memberof Popper.Utils |
| * @param {HTMLElement} popper |
| * @param {HTMLElement} reference |
| * @param {number} padding |
| * @param {HTMLElement} boundariesElement - Element used to define the boundaries |
| * @param {Boolean} fixedPosition - Is in fixed position mode |
| * @returns {Object} Coordinates of the boundaries |
| */ |
| function getBoundaries(popper, reference, padding, boundariesElement) { |
| var fixedPosition = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : false; |
| |
| // NOTE: 1 DOM access here |
| |
| var boundaries = { top: 0, left: 0 }; |
| var offsetParent = fixedPosition ? getFixedPositionOffsetParent(popper) : findCommonOffsetParent(popper, getReferenceNode(reference)); |
| |
| // Handle viewport case |
| if (boundariesElement === 'viewport') { |
| boundaries = getViewportOffsetRectRelativeToArtbitraryNode(offsetParent, fixedPosition); |
| } else { |
| // Handle other cases based on DOM element used as boundaries |
| var boundariesNode = void 0; |
| if (boundariesElement === 'scrollParent') { |
| boundariesNode = getScrollParent(getParentNode(reference)); |
| if (boundariesNode.nodeName === 'BODY') { |
| boundariesNode = popper.ownerDocument.documentElement; |
| } |
| } else if (boundariesElement === 'window') { |
| boundariesNode = popper.ownerDocument.documentElement; |
| } else { |
| boundariesNode = boundariesElement; |
| } |
| |
| var offsets = getOffsetRectRelativeToArbitraryNode(boundariesNode, offsetParent, fixedPosition); |
| |
| // In case of HTML, we need a different computation |
| if (boundariesNode.nodeName === 'HTML' && !isFixed(offsetParent)) { |
| var _getWindowSizes = getWindowSizes(popper.ownerDocument), |
| height = _getWindowSizes.height, |
| width = _getWindowSizes.width; |
| |
| boundaries.top += offsets.top - offsets.marginTop; |
| boundaries.bottom = height + offsets.top; |
| boundaries.left += offsets.left - offsets.marginLeft; |
| boundaries.right = width + offsets.left; |
| } else { |
| // for all the other DOM elements, this one is good |
| boundaries = offsets; |
| } |
| } |
| |
| // Add paddings |
| padding = padding || 0; |
| var isPaddingNumber = typeof padding === 'number'; |
| boundaries.left += isPaddingNumber ? padding : padding.left || 0; |
| boundaries.top += isPaddingNumber ? padding : padding.top || 0; |
| boundaries.right -= isPaddingNumber ? padding : padding.right || 0; |
| boundaries.bottom -= isPaddingNumber ? padding : padding.bottom || 0; |
| |
| return boundaries; |
| } |
| |
| function getArea(_ref) { |
| var width = _ref.width, |
| height = _ref.height; |
| |
| return width * height; |
| } |
| |
| /** |
| * Utility used to transform the `auto` placement to the placement with more |
| * available space. |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Object} data - The data object generated by update method |
| * @argument {Object} options - Modifiers configuration and options |
| * @returns {Object} The data object, properly modified |
| */ |
| function computeAutoPlacement(placement, refRect, popper, reference, boundariesElement) { |
| var padding = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 0; |
| |
| if (placement.indexOf('auto') === -1) { |
| return placement; |
| } |
| |
| var boundaries = getBoundaries(popper, reference, padding, boundariesElement); |
| |
| var rects = { |
| top: { |
| width: boundaries.width, |
| height: refRect.top - boundaries.top |
| }, |
| right: { |
| width: boundaries.right - refRect.right, |
| height: boundaries.height |
| }, |
| bottom: { |
| width: boundaries.width, |
| height: boundaries.bottom - refRect.bottom |
| }, |
| left: { |
| width: refRect.left - boundaries.left, |
| height: boundaries.height |
| } |
| }; |
| |
| var sortedAreas = Object.keys(rects).map(function (key) { |
| return _extends({ |
| key: key |
| }, rects[key], { |
| area: getArea(rects[key]) |
| }); |
| }).sort(function (a, b) { |
| return b.area - a.area; |
| }); |
| |
| var filteredAreas = sortedAreas.filter(function (_ref2) { |
| var width = _ref2.width, |
| height = _ref2.height; |
| return width >= popper.clientWidth && height >= popper.clientHeight; |
| }); |
| |
| var computedPlacement = filteredAreas.length > 0 ? filteredAreas[0].key : sortedAreas[0].key; |
| |
| var variation = placement.split('-')[1]; |
| |
| return computedPlacement + (variation ? '-' + variation : ''); |
| } |
| |
| var timeoutDuration = function () { |
| var longerTimeoutBrowsers = ['Edge', 'Trident', 'Firefox']; |
| for (var i = 0; i < longerTimeoutBrowsers.length; i += 1) { |
| if (isBrowser && navigator.userAgent.indexOf(longerTimeoutBrowsers[i]) >= 0) { |
| return 1; |
| } |
| } |
| return 0; |
| }(); |
| |
| function microtaskDebounce(fn) { |
| var called = false; |
| return function () { |
| if (called) { |
| return; |
| } |
| called = true; |
| window.Promise.resolve().then(function () { |
| called = false; |
| fn(); |
| }); |
| }; |
| } |
| |
| function taskDebounce(fn) { |
| var scheduled = false; |
| return function () { |
| if (!scheduled) { |
| scheduled = true; |
| setTimeout(function () { |
| scheduled = false; |
| fn(); |
| }, timeoutDuration); |
| } |
| }; |
| } |
| |
| var supportsMicroTasks = isBrowser && window.Promise; |
| |
| /** |
| * Create a debounced version of a method, that's asynchronously deferred |
| * but called in the minimum time possible. |
| * |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Function} fn |
| * @returns {Function} |
| */ |
| var debounce = supportsMicroTasks ? microtaskDebounce : taskDebounce; |
| |
| /** |
| * Mimics the `find` method of Array |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Array} arr |
| * @argument prop |
| * @argument value |
| * @returns index or -1 |
| */ |
| function find(arr, check) { |
| // use native find if supported |
| if (Array.prototype.find) { |
| return arr.find(check); |
| } |
| |
| // use `filter` to obtain the same behavior of `find` |
| return arr.filter(check)[0]; |
| } |
| |
| /** |
| * Return the index of the matching object |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Array} arr |
| * @argument prop |
| * @argument value |
| * @returns index or -1 |
| */ |
| function findIndex(arr, prop, value) { |
| // use native findIndex if supported |
| if (Array.prototype.findIndex) { |
| return arr.findIndex(function (cur) { |
| return cur[prop] === value; |
| }); |
| } |
| |
| // use `find` + `indexOf` if `findIndex` isn't supported |
| var match = find(arr, function (obj) { |
| return obj[prop] === value; |
| }); |
| return arr.indexOf(match); |
| } |
| |
| /** |
| * Get the position of the given element, relative to its offset parent |
| * @method |
| * @memberof Popper.Utils |
| * @param {Element} element |
| * @return {Object} position - Coordinates of the element and its `scrollTop` |
| */ |
| function getOffsetRect(element) { |
| var elementRect = void 0; |
| if (element.nodeName === 'HTML') { |
| var _getWindowSizes = getWindowSizes(element.ownerDocument), |
| width = _getWindowSizes.width, |
| height = _getWindowSizes.height; |
| |
| elementRect = { |
| width: width, |
| height: height, |
| left: 0, |
| top: 0 |
| }; |
| } else { |
| elementRect = { |
| width: element.offsetWidth, |
| height: element.offsetHeight, |
| left: element.offsetLeft, |
| top: element.offsetTop |
| }; |
| } |
| |
| // position |
| return getClientRect(elementRect); |
| } |
| |
| /** |
| * Get the outer sizes of the given element (offset size + margins) |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Element} element |
| * @returns {Object} object containing width and height properties |
| */ |
| function getOuterSizes(element) { |
| var window = element.ownerDocument.defaultView; |
| var styles = window.getComputedStyle(element); |
| var x = parseFloat(styles.marginTop || 0) + parseFloat(styles.marginBottom || 0); |
| var y = parseFloat(styles.marginLeft || 0) + parseFloat(styles.marginRight || 0); |
| var result = { |
| width: element.offsetWidth + y, |
| height: element.offsetHeight + x |
| }; |
| return result; |
| } |
| |
| /** |
| * Get the opposite placement of the given one |
| * @method |
| * @memberof Popper.Utils |
| * @argument {String} placement |
| * @returns {String} flipped placement |
| */ |
| function getOppositePlacement(placement) { |
| var hash = { left: 'right', right: 'left', bottom: 'top', top: 'bottom' }; |
| return placement.replace(/left|right|bottom|top/g, function (matched) { |
| return hash[matched]; |
| }); |
| } |
| |
| /** |
| * Get offsets to the popper |
| * @method |
| * @memberof Popper.Utils |
| * @param {Object} position - CSS position the Popper will get applied |
| * @param {HTMLElement} popper - the popper element |
| * @param {Object} referenceOffsets - the reference offsets (the popper will be relative to this) |
| * @param {String} placement - one of the valid placement options |
| * @returns {Object} popperOffsets - An object containing the offsets which will be applied to the popper |
| */ |
| function getPopperOffsets(popper, referenceOffsets, placement) { |
| placement = placement.split('-')[0]; |
| |
| // Get popper node sizes |
| var popperRect = getOuterSizes(popper); |
| |
| // Add position, width and height to our offsets object |
| var popperOffsets = { |
| width: popperRect.width, |
| height: popperRect.height |
| }; |
| |
| // depending by the popper placement we have to compute its offsets slightly differently |
| var isHoriz = ['right', 'left'].indexOf(placement) !== -1; |
| var mainSide = isHoriz ? 'top' : 'left'; |
| var secondarySide = isHoriz ? 'left' : 'top'; |
| var measurement = isHoriz ? 'height' : 'width'; |
| var secondaryMeasurement = !isHoriz ? 'height' : 'width'; |
| |
| popperOffsets[mainSide] = referenceOffsets[mainSide] + referenceOffsets[measurement] / 2 - popperRect[measurement] / 2; |
| if (placement === secondarySide) { |
| popperOffsets[secondarySide] = referenceOffsets[secondarySide] - popperRect[secondaryMeasurement]; |
| } else { |
| popperOffsets[secondarySide] = referenceOffsets[getOppositePlacement(secondarySide)]; |
| } |
| |
| return popperOffsets; |
| } |
| |
| /** |
| * Get offsets to the reference element |
| * @method |
| * @memberof Popper.Utils |
| * @param {Object} state |
| * @param {Element} popper - the popper element |
| * @param {Element} reference - the reference element (the popper will be relative to this) |
| * @param {Element} fixedPosition - is in fixed position mode |
| * @returns {Object} An object containing the offsets which will be applied to the popper |
| */ |
| function getReferenceOffsets(state, popper, reference) { |
| var fixedPosition = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null; |
| |
| var commonOffsetParent = fixedPosition ? getFixedPositionOffsetParent(popper) : findCommonOffsetParent(popper, getReferenceNode(reference)); |
| return getOffsetRectRelativeToArbitraryNode(reference, commonOffsetParent, fixedPosition); |
| } |
| |
| /** |
| * Get the prefixed supported property name |
| * @method |
| * @memberof Popper.Utils |
| * @argument {String} property (camelCase) |
| * @returns {String} prefixed property (camelCase or PascalCase, depending on the vendor prefix) |
| */ |
| function getSupportedPropertyName(property) { |
| var prefixes = [false, 'ms', 'Webkit', 'Moz', 'O']; |
| var upperProp = property.charAt(0).toUpperCase() + property.slice(1); |
| |
| for (var i = 0; i < prefixes.length; i++) { |
| var prefix = prefixes[i]; |
| var toCheck = prefix ? '' + prefix + upperProp : property; |
| if (typeof document.body.style[toCheck] !== 'undefined') { |
| return toCheck; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Check if the given variable is a function |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Any} functionToCheck - variable to check |
| * @returns {Boolean} answer to: is a function? |
| */ |
| function isFunction(functionToCheck) { |
| var getType = {}; |
| return functionToCheck && getType.toString.call(functionToCheck) === '[object Function]'; |
| } |
| |
| /** |
| * Helper used to know if the given modifier is enabled. |
| * @method |
| * @memberof Popper.Utils |
| * @returns {Boolean} |
| */ |
| function isModifierEnabled(modifiers, modifierName) { |
| return modifiers.some(function (_ref) { |
| var name = _ref.name, |
| enabled = _ref.enabled; |
| return enabled && name === modifierName; |
| }); |
| } |
| |
| /** |
| * Helper used to know if the given modifier depends from another one.<br /> |
| * It checks if the needed modifier is listed and enabled. |
| * @method |
| * @memberof Popper.Utils |
| * @param {Array} modifiers - list of modifiers |
| * @param {String} requestingName - name of requesting modifier |
| * @param {String} requestedName - name of requested modifier |
| * @returns {Boolean} |
| */ |
| function isModifierRequired(modifiers, requestingName, requestedName) { |
| var requesting = find(modifiers, function (_ref) { |
| var name = _ref.name; |
| return name === requestingName; |
| }); |
| |
| var isRequired = !!requesting && modifiers.some(function (modifier) { |
| return modifier.name === requestedName && modifier.enabled && modifier.order < requesting.order; |
| }); |
| |
| if (!isRequired) { |
| var _requesting = '`' + requestingName + '`'; |
| var requested = '`' + requestedName + '`'; |
| console.warn(requested + ' modifier is required by ' + _requesting + ' modifier in order to work, be sure to include it before ' + _requesting + '!'); |
| } |
| return isRequired; |
| } |
| |
| /** |
| * Tells if a given input is a number |
| * @method |
| * @memberof Popper.Utils |
| * @param {*} input to check |
| * @return {Boolean} |
| */ |
| function isNumeric(n) { |
| return n !== '' && !isNaN(parseFloat(n)) && isFinite(n); |
| } |
| |
| /** |
| * Get the window associated with the element |
| * @argument {Element} element |
| * @returns {Window} |
| */ |
| function getWindow(element) { |
| var ownerDocument = element.ownerDocument; |
| return ownerDocument ? ownerDocument.defaultView : window; |
| } |
| |
| /** |
| * Remove event listeners used to update the popper position |
| * @method |
| * @memberof Popper.Utils |
| * @private |
| */ |
| function removeEventListeners(reference, state) { |
| // Remove resize event listener on window |
| getWindow(reference).removeEventListener('resize', state.updateBound); |
| |
| // Remove scroll event listener on scroll parents |
| state.scrollParents.forEach(function (target) { |
| target.removeEventListener('scroll', state.updateBound); |
| }); |
| |
| // Reset state |
| state.updateBound = null; |
| state.scrollParents = []; |
| state.scrollElement = null; |
| state.eventsEnabled = false; |
| return state; |
| } |
| |
| /** |
| * Loop trough the list of modifiers and run them in order, |
| * each of them will then edit the data object. |
| * @method |
| * @memberof Popper.Utils |
| * @param {dataObject} data |
| * @param {Array} modifiers |
| * @param {String} ends - Optional modifier name used as stopper |
| * @returns {dataObject} |
| */ |
| function runModifiers(modifiers, data, ends) { |
| var modifiersToRun = ends === undefined ? modifiers : modifiers.slice(0, findIndex(modifiers, 'name', ends)); |
| |
| modifiersToRun.forEach(function (modifier) { |
| if (modifier['function']) { |
| // eslint-disable-line dot-notation |
| console.warn('`modifier.function` is deprecated, use `modifier.fn`!'); |
| } |
| var fn = modifier['function'] || modifier.fn; // eslint-disable-line dot-notation |
| if (modifier.enabled && isFunction(fn)) { |
| // Add properties to offsets to make them a complete clientRect object |
| // we do this before each modifier to make sure the previous one doesn't |
| // mess with these values |
| data.offsets.popper = getClientRect(data.offsets.popper); |
| data.offsets.reference = getClientRect(data.offsets.reference); |
| |
| data = fn(data, modifier); |
| } |
| }); |
| |
| return data; |
| } |
| |
| /** |
| * Set the attributes to the given popper |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Element} element - Element to apply the attributes to |
| * @argument {Object} styles |
| * Object with a list of properties and values which will be applied to the element |
| */ |
| function setAttributes(element, attributes) { |
| Object.keys(attributes).forEach(function (prop) { |
| var value = attributes[prop]; |
| if (value !== false) { |
| element.setAttribute(prop, attributes[prop]); |
| } else { |
| element.removeAttribute(prop); |
| } |
| }); |
| } |
| |
| /** |
| * Set the style to the given popper |
| * @method |
| * @memberof Popper.Utils |
| * @argument {Element} element - Element to apply the style to |
| * @argument {Object} styles |
| * Object with a list of properties and values which will be applied to the element |
| */ |
| function setStyles(element, styles) { |
| Object.keys(styles).forEach(function (prop) { |
| var unit = ''; |
| // add unit if the value is numeric and is one of the following |
| if (['width', 'height', 'top', 'right', 'bottom', 'left'].indexOf(prop) !== -1 && isNumeric(styles[prop])) { |
| unit = 'px'; |
| } |
| element.style[prop] = styles[prop] + unit; |
| }); |
| } |
| |
| function attachToScrollParents(scrollParent, event, callback, scrollParents) { |
| var isBody = scrollParent.nodeName === 'BODY'; |
| var target = isBody ? scrollParent.ownerDocument.defaultView : scrollParent; |
| target.addEventListener(event, callback, { passive: true }); |
| |
| if (!isBody) { |
| attachToScrollParents(getScrollParent(target.parentNode), event, callback, scrollParents); |
| } |
| scrollParents.push(target); |
| } |
| |
| /** |
| * Setup needed event listeners used to update the popper position |
| * @method |
| * @memberof Popper.Utils |
| * @private |
| */ |
| function setupEventListeners(reference, options, state, updateBound) { |
| // Resize event listener on window |
| state.updateBound = updateBound; |
| getWindow(reference).addEventListener('resize', state.updateBound, { passive: true }); |
| |
| // Scroll event listener on scroll parents |
| var scrollElement = getScrollParent(reference); |
| attachToScrollParents(scrollElement, 'scroll', state.updateBound, state.scrollParents); |
| state.scrollElement = scrollElement; |
| state.eventsEnabled = true; |
| |
| return state; |
| } |
| |
| // This is here just for backward compatibility with versions lower than v1.10.3 |
| // you should import the utilities using named exports, if you want them all use: |
| // ``` |
| // import * as PopperUtils from 'popper-utils'; |
| // ``` |
| // The default export will be removed in the next major version. |
| var index = { |
| computeAutoPlacement: computeAutoPlacement, |
| debounce: debounce, |
| findIndex: findIndex, |
| getBordersSize: getBordersSize, |
| getBoundaries: getBoundaries, |
| getBoundingClientRect: getBoundingClientRect, |
| getClientRect: getClientRect, |
| getOffsetParent: getOffsetParent, |
| getOffsetRect: getOffsetRect, |
| getOffsetRectRelativeToArbitraryNode: getOffsetRectRelativeToArbitraryNode, |
| getOuterSizes: getOuterSizes, |
| getParentNode: getParentNode, |
| getPopperOffsets: getPopperOffsets, |
| getReferenceOffsets: getReferenceOffsets, |
| getScroll: getScroll, |
| getScrollParent: getScrollParent, |
| getStyleComputedProperty: getStyleComputedProperty, |
| getSupportedPropertyName: getSupportedPropertyName, |
| getWindowSizes: getWindowSizes, |
| isFixed: isFixed, |
| isFunction: isFunction, |
| isModifierEnabled: isModifierEnabled, |
| isModifierRequired: isModifierRequired, |
| isNumeric: isNumeric, |
| removeEventListeners: removeEventListeners, |
| runModifiers: runModifiers, |
| setAttributes: setAttributes, |
| setStyles: setStyles, |
| setupEventListeners: setupEventListeners |
| }; |
| |
| exports.computeAutoPlacement = computeAutoPlacement; |
| exports.debounce = debounce; |
| exports.findIndex = findIndex; |
| exports.getBordersSize = getBordersSize; |
| exports.getBoundaries = getBoundaries; |
| exports.getBoundingClientRect = getBoundingClientRect; |
| exports.getClientRect = getClientRect; |
| exports.getOffsetParent = getOffsetParent; |
| exports.getOffsetRect = getOffsetRect; |
| exports.getOffsetRectRelativeToArbitraryNode = getOffsetRectRelativeToArbitraryNode; |
| exports.getOuterSizes = getOuterSizes; |
| exports.getParentNode = getParentNode; |
| exports.getPopperOffsets = getPopperOffsets; |
| exports.getReferenceOffsets = getReferenceOffsets; |
| exports.getScroll = getScroll; |
| exports.getScrollParent = getScrollParent; |
| exports.getStyleComputedProperty = getStyleComputedProperty; |
| exports.getSupportedPropertyName = getSupportedPropertyName; |
| exports.getWindowSizes = getWindowSizes; |
| exports.isFixed = isFixed; |
| exports.isFunction = isFunction; |
| exports.isModifierEnabled = isModifierEnabled; |
| exports.isModifierRequired = isModifierRequired; |
| exports.isNumeric = isNumeric; |
| exports.removeEventListeners = removeEventListeners; |
| exports.runModifiers = runModifiers; |
| exports.setAttributes = setAttributes; |
| exports.setStyles = setStyles; |
| exports.setupEventListeners = setupEventListeners; |
| exports['default'] = index; |
| |
| Object.defineProperty(exports, '__esModule', { value: true }); |
| |
| }))); |
| //# sourceMappingURL=popper-utils.js.map |