diff --git a/javascript.html b/javascript.html
index 4cce987..83feaae 100644
--- a/javascript.html
+++ b/javascript.html
@@ -7,19 +7,19 @@
diff --git a/js/holder.min.js b/js/holder.min.js
deleted file mode 100644
index 62255af..0000000
--- a/js/holder.min.js
+++ /dev/null
@@ -1,13 +0,0 @@
-/*!
-
-Holder - client side image placeholders
-Version 2.9.4+cabil
-© 2016 Ivan Malopinsky - http://imsky.co
-
-Site: http://holderjs.com
-Issues: https://github.com/imsky/holder/issues
-License: MIT
-
-*/
-!function(e){if(e.document){var t=e.document;t.querySelectorAll||(t.querySelectorAll=function(n){var r,i=t.createElement("style"),o=[];for(t.documentElement.firstChild.appendChild(i),t._qsa=[],i.styleSheet.cssText=n+"{x-qsa:expression(document._qsa && document._qsa.push(this))}",e.scrollBy(0,0),i.parentNode.removeChild(i);t._qsa.length;)r=t._qsa.shift(),r.style.removeAttribute("x-qsa"),o.push(r);return t._qsa=null,o}),t.querySelector||(t.querySelector=function(e){var n=t.querySelectorAll(e);return n.length?n[0]:null}),t.getElementsByClassName||(t.getElementsByClassName=function(e){return e=String(e).replace(/^|\s+/g,"."),t.querySelectorAll(e)}),Object.keys||(Object.keys=function(e){if(e!==Object(e))throw TypeError("Object.keys called on non-object");var t,n=[];for(t in e)Object.prototype.hasOwnProperty.call(e,t)&&n.push(t);return n}),Array.prototype.forEach||(Array.prototype.forEach=function(e){if(void 0===this||null===this)throw TypeError();var 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T=s.svgStringToDataURI(k,"background"===t.mode);return T}},function(e,t,n){n(14);e.exports=function r(e,t,n){"use strict";function i(e){var t=e.match(/^[\w-]+/),r={tag:t?t[0]:"div",attr:{},children:[]},i=e.match(/#([\w-]+)/),o=e.match(/\$([\w-]+)/),a=e.match(/\.[\w-]+/g);return i&&(r.attr.id=i[1],n[i[1]]=r),o&&(n[o[1]]=r),a&&(r.attr["class"]=a.join(" ").replace(/\./g,"")),e.match(/&$/g)&&(f=!1),r}function o(e,t){if(null!==t&&t!==!1&&void 0!==t)return"string"!=typeof t&&"object"!=typeof t?String(t):t}function a(e){return e||0===e?String(e).replace(/&/g,"&").replace(/"/g,"""):""}function s(e){return String(e).replace(/&/g,"&").replace(/"/g,""").replace(/'/g,"'").replace(//g,">")}var l,h,u,c,d=1,f=!0;if(n=n||{},"string"==typeof e[0])e[0]=i(e[0]);else{if(!Array.isArray(e[0]))throw new Error("First element of array must be a string, or an array and not "+JSON.stringify(e[0]));d=0}for(;d",e[0]=l}return n[0]=e[0],u&&u(e[0]),n}},function(e,t){"use strict";function n(e){var 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diff --git a/js/popper.js b/js/popper.js
deleted file mode 100644
index 0288038..0000000
--- a/js/popper.js
+++ /dev/null
@@ -1,2528 +0,0 @@
-/**!
- * @fileOverview Kickass library to create and place poppers near their reference elements.
- * @version 1.14.3
- * @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' ? module.exports = factory() :
- typeof define === 'function' && define.amd ? define(factory) :
- (global.Popper = factory());
-}(this, (function () { 'use strict';
-
-var isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined';
-
-var longerTimeoutBrowsers = ['Edge', 'Trident', 'Firefox'];
-var timeoutDuration = 0;
-for (var i = 0; i < longerTimeoutBrowsers.length; i += 1) {
- if (isBrowser && navigator.userAgent.indexOf(longerTimeoutBrowsers[i]) >= 0) {
- timeoutDuration = 1;
- break;
- }
-}
-
-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;
-
-/**
- * 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]';
-}
-
-/**
- * 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 css = 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));
-}
-
-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;
- // 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 TD or TABLE in case
- // no offsetParent is present, I hate this job...
- if (['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) ? html['offset' + axis] + computedStyle['margin' + (axis === 'Height' ? 'Top' : 'Left')] + computedStyle['margin' + (axis === 'Height' ? 'Bottom' : 'Right')] : 0);
-}
-
-function getWindowSizes() {
- 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 classCallCheck = function (instance, Constructor) {
- if (!(instance instanceof Constructor)) {
- throw new TypeError("Cannot call a class as a function");
- }
-};
-
-var createClass = function () {
- function defineProperties(target, props) {
- for (var i = 0; i < props.length; i++) {
- var descriptor = props[i];
- descriptor.enumerable = descriptor.enumerable || false;
- descriptor.configurable = true;
- if ("value" in descriptor) descriptor.writable = true;
- Object.defineProperty(target, descriptor.key, descriptor);
- }
- }
-
- return function (Constructor, protoProps, staticProps) {
- if (protoProps) defineProperties(Constructor.prototype, protoProps);
- if (staticProps) defineProperties(Constructor, staticProps);
- return Constructor;
- };
-}();
-
-
-
-
-
-var defineProperty = function (obj, key, value) {
- if (key in obj) {
- Object.defineProperty(obj, key, {
- value: value,
- enumerable: true,
- configurable: true,
- writable: true
- });
- } else {
- obj[key] = value;
- }
-
- return obj;
-};
-
-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() : {};
- var width = sizes.width || element.clientWidth || result.right - result.left;
- var height = sizes.height || element.clientHeight || result.bottom - result.top;
-
- 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 && parent.nodeName === 'HTML') {
- 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;
- }
- return isFixed(getParentNode(element));
-}
-
-/**
- * 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, 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(),
- 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
- boundaries.left += padding;
- boundaries.top += padding;
- boundaries.right -= padding;
- boundaries.bottom -= padding;
-
- 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 : '');
-}
-
-/**
- * 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, reference);
- return getOffsetRectRelativeToArbitraryNode(reference, commonOffsetParent, fixedPosition);
-}
-
-/**
- * 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 styles = getComputedStyle(element);
- var x = parseFloat(styles.marginTop) + parseFloat(styles.marginBottom);
- var y = parseFloat(styles.marginLeft) + parseFloat(styles.marginRight);
- 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;
-}
-
-/**
- * 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);
-}
-
-/**
- * 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;
-}
-
-/**
- * Updates the position of the popper, computing the new offsets and applying
- * the new style.
- * Prefer `scheduleUpdate` over `update` because of performance reasons.
- * @method
- * @memberof Popper
- */
-function update() {
- // if popper is destroyed, don't perform any further update
- if (this.state.isDestroyed) {
- return;
- }
-
- var data = {
- instance: this,
- styles: {},
- arrowStyles: {},
- attributes: {},
- flipped: false,
- offsets: {}
- };
-
- // compute reference element offsets
- data.offsets.reference = getReferenceOffsets(this.state, this.popper, this.reference, this.options.positionFixed);
-
- // compute auto placement, store placement inside the data object,
- // modifiers will be able to edit `placement` if needed
- // and refer to originalPlacement to know the original value
- data.placement = computeAutoPlacement(this.options.placement, data.offsets.reference, this.popper, this.reference, this.options.modifiers.flip.boundariesElement, this.options.modifiers.flip.padding);
-
- // store the computed placement inside `originalPlacement`
- data.originalPlacement = data.placement;
-
- data.positionFixed = this.options.positionFixed;
-
- // compute the popper offsets
- data.offsets.popper = getPopperOffsets(this.popper, data.offsets.reference, data.placement);
-
- data.offsets.popper.position = this.options.positionFixed ? 'fixed' : 'absolute';
-
- // run the modifiers
- data = runModifiers(this.modifiers, data);
-
- // the first `update` will call `onCreate` callback
- // the other ones will call `onUpdate` callback
- if (!this.state.isCreated) {
- this.state.isCreated = true;
- this.options.onCreate(data);
- } else {
- this.options.onUpdate(data);
- }
-}
-
-/**
- * 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;
- });
-}
-
-/**
- * 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;
-}
-
-/**
- * Destroy the popper
- * @method
- * @memberof Popper
- */
-function destroy() {
- this.state.isDestroyed = true;
-
- // touch DOM only if `applyStyle` modifier is enabled
- if (isModifierEnabled(this.modifiers, 'applyStyle')) {
- this.popper.removeAttribute('x-placement');
- this.popper.style.position = '';
- this.popper.style.top = '';
- this.popper.style.left = '';
- this.popper.style.right = '';
- this.popper.style.bottom = '';
- this.popper.style.willChange = '';
- this.popper.style[getSupportedPropertyName('transform')] = '';
- }
-
- this.disableEventListeners();
-
- // remove the popper if user explicity asked for the deletion on destroy
- // do not use `remove` because IE11 doesn't support it
- if (this.options.removeOnDestroy) {
- this.popper.parentNode.removeChild(this.popper);
- }
- return this;
-}
-
-/**
- * Get the window associated with the element
- * @argument {Element} element
- * @returns {Window}
- */
-function getWindow(element) {
- var ownerDocument = element.ownerDocument;
- return ownerDocument ? ownerDocument.defaultView : window;
-}
-
-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;
-}
-
-/**
- * It will add resize/scroll events and start recalculating
- * position of the popper element when they are triggered.
- * @method
- * @memberof Popper
- */
-function enableEventListeners() {
- if (!this.state.eventsEnabled) {
- this.state = setupEventListeners(this.reference, this.options, this.state, this.scheduleUpdate);
- }
-}
-
-/**
- * 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;
-}
-
-/**
- * It will remove resize/scroll events and won't recalculate popper position
- * when they are triggered. It also won't trigger onUpdate callback anymore,
- * unless you call `update` method manually.
- * @method
- * @memberof Popper
- */
-function disableEventListeners() {
- if (this.state.eventsEnabled) {
- cancelAnimationFrame(this.scheduleUpdate);
- this.state = removeEventListeners(this.reference, this.state);
- }
-}
-
-/**
- * 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);
-}
-
-/**
- * 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;
- });
-}
-
-/**
- * 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);
- }
- });
-}
-
-/**
- * @function
- * @memberof Modifiers
- * @argument {Object} data - The data object generated by `update` method
- * @argument {Object} data.styles - List of style properties - values to apply to popper element
- * @argument {Object} data.attributes - List of attribute properties - values to apply to popper element
- * @argument {Object} options - Modifiers configuration and options
- * @returns {Object} The same data object
- */
-function applyStyle(data) {
- // any property present in `data.styles` will be applied to the popper,
- // in this way we can make the 3rd party modifiers add custom styles to it
- // Be aware, modifiers could override the properties defined in the previous
- // lines of this modifier!
- setStyles(data.instance.popper, data.styles);
-
- // any property present in `data.attributes` will be applied to the popper,
- // they will be set as HTML attributes of the element
- setAttributes(data.instance.popper, data.attributes);
-
- // if arrowElement is defined and arrowStyles has some properties
- if (data.arrowElement && Object.keys(data.arrowStyles).length) {
- setStyles(data.arrowElement, data.arrowStyles);
- }
-
- return data;
-}
-
-/**
- * Set the x-placement attribute before everything else because it could be used
- * to add margins to the popper margins needs to be calculated to get the
- * correct popper offsets.
- * @method
- * @memberof Popper.modifiers
- * @param {HTMLElement} reference - The reference element used to position the popper
- * @param {HTMLElement} popper - The HTML element used as popper
- * @param {Object} options - Popper.js options
- */
-function applyStyleOnLoad(reference, popper, options, modifierOptions, state) {
- // compute reference element offsets
- var referenceOffsets = getReferenceOffsets(state, popper, reference, options.positionFixed);
-
- // compute auto placement, store placement inside the data object,
- // modifiers will be able to edit `placement` if needed
- // and refer to originalPlacement to know the original value
- var placement = computeAutoPlacement(options.placement, referenceOffsets, popper, reference, options.modifiers.flip.boundariesElement, options.modifiers.flip.padding);
-
- popper.setAttribute('x-placement', placement);
-
- // Apply `position` to popper before anything else because
- // without the position applied we can't guarantee correct computations
- setStyles(popper, { position: options.positionFixed ? 'fixed' : 'absolute' });
-
- return options;
-}
-
-/**
- * @function
- * @memberof Modifiers
- * @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 computeStyle(data, options) {
- var x = options.x,
- y = options.y;
- var popper = data.offsets.popper;
-
- // Remove this legacy support in Popper.js v2
-
- var legacyGpuAccelerationOption = find(data.instance.modifiers, function (modifier) {
- return modifier.name === 'applyStyle';
- }).gpuAcceleration;
- if (legacyGpuAccelerationOption !== undefined) {
- console.warn('WARNING: `gpuAcceleration` option moved to `computeStyle` modifier and will not be supported in future versions of Popper.js!');
- }
- var gpuAcceleration = legacyGpuAccelerationOption !== undefined ? legacyGpuAccelerationOption : options.gpuAcceleration;
-
- var offsetParent = getOffsetParent(data.instance.popper);
- var offsetParentRect = getBoundingClientRect(offsetParent);
-
- // Styles
- var styles = {
- position: popper.position
- };
-
- // Avoid blurry text by using full pixel integers.
- // For pixel-perfect positioning, top/bottom prefers rounded
- // values, while left/right prefers floored values.
- var offsets = {
- left: Math.floor(popper.left),
- top: Math.round(popper.top),
- bottom: Math.round(popper.bottom),
- right: Math.floor(popper.right)
- };
-
- var sideA = x === 'bottom' ? 'top' : 'bottom';
- var sideB = y === 'right' ? 'left' : 'right';
-
- // if gpuAcceleration is set to `true` and transform is supported,
- // we use `translate3d` to apply the position to the popper we
- // automatically use the supported prefixed version if needed
- var prefixedProperty = getSupportedPropertyName('transform');
-
- // now, let's make a step back and look at this code closely (wtf?)
- // If the content of the popper grows once it's been positioned, it
- // may happen that the popper gets misplaced because of the new content
- // overflowing its reference element
- // To avoid this problem, we provide two options (x and y), which allow
- // the consumer to define the offset origin.
- // If we position a popper on top of a reference element, we can set
- // `x` to `top` to make the popper grow towards its top instead of
- // its bottom.
- var left = void 0,
- top = void 0;
- if (sideA === 'bottom') {
- top = -offsetParentRect.height + offsets.bottom;
- } else {
- top = offsets.top;
- }
- if (sideB === 'right') {
- left = -offsetParentRect.width + offsets.right;
- } else {
- left = offsets.left;
- }
- if (gpuAcceleration && prefixedProperty) {
- styles[prefixedProperty] = 'translate3d(' + left + 'px, ' + top + 'px, 0)';
- styles[sideA] = 0;
- styles[sideB] = 0;
- styles.willChange = 'transform';
- } else {
- // othwerise, we use the standard `top`, `left`, `bottom` and `right` properties
- var invertTop = sideA === 'bottom' ? -1 : 1;
- var invertLeft = sideB === 'right' ? -1 : 1;
- styles[sideA] = top * invertTop;
- styles[sideB] = left * invertLeft;
- styles.willChange = sideA + ', ' + sideB;
- }
-
- // Attributes
- var attributes = {
- 'x-placement': data.placement
- };
-
- // Update `data` attributes, styles and arrowStyles
- data.attributes = _extends({}, attributes, data.attributes);
- data.styles = _extends({}, styles, data.styles);
- data.arrowStyles = _extends({}, data.offsets.arrow, data.arrowStyles);
-
- return data;
-}
-
-/**
- * Helper used to know if the given modifier depends from another one.
- * 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;
-}
-
-/**
- * @function
- * @memberof Modifiers
- * @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 arrow(data, options) {
- var _data$offsets$arrow;
-
- // arrow depends on keepTogether in order to work
- if (!isModifierRequired(data.instance.modifiers, 'arrow', 'keepTogether')) {
- return data;
- }
-
- var arrowElement = options.element;
-
- // if arrowElement is a string, suppose it's a CSS selector
- if (typeof arrowElement === 'string') {
- arrowElement = data.instance.popper.querySelector(arrowElement);
-
- // if arrowElement is not found, don't run the modifier
- if (!arrowElement) {
- return data;
- }
- } else {
- // if the arrowElement isn't a query selector we must check that the
- // provided DOM node is child of its popper node
- if (!data.instance.popper.contains(arrowElement)) {
- console.warn('WARNING: `arrow.element` must be child of its popper element!');
- return data;
- }
- }
-
- var placement = data.placement.split('-')[0];
- var _data$offsets = data.offsets,
- popper = _data$offsets.popper,
- reference = _data$offsets.reference;
-
- var isVertical = ['left', 'right'].indexOf(placement) !== -1;
-
- var len = isVertical ? 'height' : 'width';
- var sideCapitalized = isVertical ? 'Top' : 'Left';
- var side = sideCapitalized.toLowerCase();
- var altSide = isVertical ? 'left' : 'top';
- var opSide = isVertical ? 'bottom' : 'right';
- var arrowElementSize = getOuterSizes(arrowElement)[len];
-
- //
- // extends keepTogether behavior making sure the popper and its
- // reference have enough pixels in conjuction
- //
-
- // top/left side
- if (reference[opSide] - arrowElementSize < popper[side]) {
- data.offsets.popper[side] -= popper[side] - (reference[opSide] - arrowElementSize);
- }
- // bottom/right side
- if (reference[side] + arrowElementSize > popper[opSide]) {
- data.offsets.popper[side] += reference[side] + arrowElementSize - popper[opSide];
- }
- data.offsets.popper = getClientRect(data.offsets.popper);
-
- // compute center of the popper
- var center = reference[side] + reference[len] / 2 - arrowElementSize / 2;
-
- // Compute the sideValue using the updated popper offsets
- // take popper margin in account because we don't have this info available
- var css = getStyleComputedProperty(data.instance.popper);
- var popperMarginSide = parseFloat(css['margin' + sideCapitalized], 10);
- var popperBorderSide = parseFloat(css['border' + sideCapitalized + 'Width'], 10);
- var sideValue = center - data.offsets.popper[side] - popperMarginSide - popperBorderSide;
-
- // prevent arrowElement from being placed not contiguously to its popper
- sideValue = Math.max(Math.min(popper[len] - arrowElementSize, sideValue), 0);
-
- data.arrowElement = arrowElement;
- data.offsets.arrow = (_data$offsets$arrow = {}, defineProperty(_data$offsets$arrow, side, Math.round(sideValue)), defineProperty(_data$offsets$arrow, altSide, ''), _data$offsets$arrow);
-
- return data;
-}
-
-/**
- * Get the opposite placement variation of the given one
- * @method
- * @memberof Popper.Utils
- * @argument {String} placement variation
- * @returns {String} flipped placement variation
- */
-function getOppositeVariation(variation) {
- if (variation === 'end') {
- return 'start';
- } else if (variation === 'start') {
- return 'end';
- }
- return variation;
-}
-
-/**
- * List of accepted placements to use as values of the `placement` option.
- * Valid placements are:
- * - `auto`
- * - `top`
- * - `right`
- * - `bottom`
- * - `left`
- *
- * Each placement can have a variation from this list:
- * - `-start`
- * - `-end`
- *
- * Variations are interpreted easily if you think of them as the left to right
- * written languages. Horizontally (`top` and `bottom`), `start` is left and `end`
- * is right.
- * Vertically (`left` and `right`), `start` is top and `end` is bottom.
- *
- * Some valid examples are:
- * - `top-end` (on top of reference, right aligned)
- * - `right-start` (on right of reference, top aligned)
- * - `bottom` (on bottom, centered)
- * - `auto-right` (on the side with more space available, alignment depends by placement)
- *
- * @static
- * @type {Array}
- * @enum {String}
- * @readonly
- * @method placements
- * @memberof Popper
- */
-var placements = ['auto-start', 'auto', 'auto-end', 'top-start', 'top', 'top-end', 'right-start', 'right', 'right-end', 'bottom-end', 'bottom', 'bottom-start', 'left-end', 'left', 'left-start'];
-
-// Get rid of `auto` `auto-start` and `auto-end`
-var validPlacements = placements.slice(3);
-
-/**
- * Given an initial placement, returns all the subsequent placements
- * clockwise (or counter-clockwise).
- *
- * @method
- * @memberof Popper.Utils
- * @argument {String} placement - A valid placement (it accepts variations)
- * @argument {Boolean} counter - Set to true to walk the placements counterclockwise
- * @returns {Array} placements including their variations
- */
-function clockwise(placement) {
- var counter = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
-
- var index = validPlacements.indexOf(placement);
- var arr = validPlacements.slice(index + 1).concat(validPlacements.slice(0, index));
- return counter ? arr.reverse() : arr;
-}
-
-var BEHAVIORS = {
- FLIP: 'flip',
- CLOCKWISE: 'clockwise',
- COUNTERCLOCKWISE: 'counterclockwise'
-};
-
-/**
- * @function
- * @memberof Modifiers
- * @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 flip(data, options) {
- // if `inner` modifier is enabled, we can't use the `flip` modifier
- if (isModifierEnabled(data.instance.modifiers, 'inner')) {
- return data;
- }
-
- if (data.flipped && data.placement === data.originalPlacement) {
- // seems like flip is trying to loop, probably there's not enough space on any of the flippable sides
- return data;
- }
-
- var boundaries = getBoundaries(data.instance.popper, data.instance.reference, options.padding, options.boundariesElement, data.positionFixed);
-
- var placement = data.placement.split('-')[0];
- var placementOpposite = getOppositePlacement(placement);
- var variation = data.placement.split('-')[1] || '';
-
- var flipOrder = [];
-
- switch (options.behavior) {
- case BEHAVIORS.FLIP:
- flipOrder = [placement, placementOpposite];
- break;
- case BEHAVIORS.CLOCKWISE:
- flipOrder = clockwise(placement);
- break;
- case BEHAVIORS.COUNTERCLOCKWISE:
- flipOrder = clockwise(placement, true);
- break;
- default:
- flipOrder = options.behavior;
- }
-
- flipOrder.forEach(function (step, index) {
- if (placement !== step || flipOrder.length === index + 1) {
- return data;
- }
-
- placement = data.placement.split('-')[0];
- placementOpposite = getOppositePlacement(placement);
-
- var popperOffsets = data.offsets.popper;
- var refOffsets = data.offsets.reference;
-
- // using floor because the reference offsets may contain decimals we are not going to consider here
- var floor = Math.floor;
- var overlapsRef = placement === 'left' && floor(popperOffsets.right) > floor(refOffsets.left) || placement === 'right' && floor(popperOffsets.left) < floor(refOffsets.right) || placement === 'top' && floor(popperOffsets.bottom) > floor(refOffsets.top) || placement === 'bottom' && floor(popperOffsets.top) < floor(refOffsets.bottom);
-
- var overflowsLeft = floor(popperOffsets.left) < floor(boundaries.left);
- var overflowsRight = floor(popperOffsets.right) > floor(boundaries.right);
- var overflowsTop = floor(popperOffsets.top) < floor(boundaries.top);
- var overflowsBottom = floor(popperOffsets.bottom) > floor(boundaries.bottom);
-
- var overflowsBoundaries = placement === 'left' && overflowsLeft || placement === 'right' && overflowsRight || placement === 'top' && overflowsTop || placement === 'bottom' && overflowsBottom;
-
- // flip the variation if required
- var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;
- var flippedVariation = !!options.flipVariations && (isVertical && variation === 'start' && overflowsLeft || isVertical && variation === 'end' && overflowsRight || !isVertical && variation === 'start' && overflowsTop || !isVertical && variation === 'end' && overflowsBottom);
-
- if (overlapsRef || overflowsBoundaries || flippedVariation) {
- // this boolean to detect any flip loop
- data.flipped = true;
-
- if (overlapsRef || overflowsBoundaries) {
- placement = flipOrder[index + 1];
- }
-
- if (flippedVariation) {
- variation = getOppositeVariation(variation);
- }
-
- data.placement = placement + (variation ? '-' + variation : '');
-
- // this object contains `position`, we want to preserve it along with
- // any additional property we may add in the future
- data.offsets.popper = _extends({}, data.offsets.popper, getPopperOffsets(data.instance.popper, data.offsets.reference, data.placement));
-
- data = runModifiers(data.instance.modifiers, data, 'flip');
- }
- });
- return data;
-}
-
-/**
- * @function
- * @memberof Modifiers
- * @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 keepTogether(data) {
- var _data$offsets = data.offsets,
- popper = _data$offsets.popper,
- reference = _data$offsets.reference;
-
- var placement = data.placement.split('-')[0];
- var floor = Math.floor;
- var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;
- var side = isVertical ? 'right' : 'bottom';
- var opSide = isVertical ? 'left' : 'top';
- var measurement = isVertical ? 'width' : 'height';
-
- if (popper[side] < floor(reference[opSide])) {
- data.offsets.popper[opSide] = floor(reference[opSide]) - popper[measurement];
- }
- if (popper[opSide] > floor(reference[side])) {
- data.offsets.popper[opSide] = floor(reference[side]);
- }
-
- return data;
-}
-
-/**
- * Converts a string containing value + unit into a px value number
- * @function
- * @memberof {modifiers~offset}
- * @private
- * @argument {String} str - Value + unit string
- * @argument {String} measurement - `height` or `width`
- * @argument {Object} popperOffsets
- * @argument {Object} referenceOffsets
- * @returns {Number|String}
- * Value in pixels, or original string if no values were extracted
- */
-function toValue(str, measurement, popperOffsets, referenceOffsets) {
- // separate value from unit
- var split = str.match(/((?:\-|\+)?\d*\.?\d*)(.*)/);
- var value = +split[1];
- var unit = split[2];
-
- // If it's not a number it's an operator, I guess
- if (!value) {
- return str;
- }
-
- if (unit.indexOf('%') === 0) {
- var element = void 0;
- switch (unit) {
- case '%p':
- element = popperOffsets;
- break;
- case '%':
- case '%r':
- default:
- element = referenceOffsets;
- }
-
- var rect = getClientRect(element);
- return rect[measurement] / 100 * value;
- } else if (unit === 'vh' || unit === 'vw') {
- // if is a vh or vw, we calculate the size based on the viewport
- var size = void 0;
- if (unit === 'vh') {
- size = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);
- } else {
- size = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);
- }
- return size / 100 * value;
- } else {
- // if is an explicit pixel unit, we get rid of the unit and keep the value
- // if is an implicit unit, it's px, and we return just the value
- return value;
- }
-}
-
-/**
- * Parse an `offset` string to extrapolate `x` and `y` numeric offsets.
- * @function
- * @memberof {modifiers~offset}
- * @private
- * @argument {String} offset
- * @argument {Object} popperOffsets
- * @argument {Object} referenceOffsets
- * @argument {String} basePlacement
- * @returns {Array} a two cells array with x and y offsets in numbers
- */
-function parseOffset(offset, popperOffsets, referenceOffsets, basePlacement) {
- var offsets = [0, 0];
-
- // Use height if placement is left or right and index is 0 otherwise use width
- // in this way the first offset will use an axis and the second one
- // will use the other one
- var useHeight = ['right', 'left'].indexOf(basePlacement) !== -1;
-
- // Split the offset string to obtain a list of values and operands
- // The regex addresses values with the plus or minus sign in front (+10, -20, etc)
- var fragments = offset.split(/(\+|\-)/).map(function (frag) {
- return frag.trim();
- });
-
- // Detect if the offset string contains a pair of values or a single one
- // they could be separated by comma or space
- var divider = fragments.indexOf(find(fragments, function (frag) {
- return frag.search(/,|\s/) !== -1;
- }));
-
- if (fragments[divider] && fragments[divider].indexOf(',') === -1) {
- console.warn('Offsets separated by white space(s) are deprecated, use a comma (,) instead.');
- }
-
- // If divider is found, we divide the list of values and operands to divide
- // them by ofset X and Y.
- var splitRegex = /\s*,\s*|\s+/;
- var ops = divider !== -1 ? [fragments.slice(0, divider).concat([fragments[divider].split(splitRegex)[0]]), [fragments[divider].split(splitRegex)[1]].concat(fragments.slice(divider + 1))] : [fragments];
-
- // Convert the values with units to absolute pixels to allow our computations
- ops = ops.map(function (op, index) {
- // Most of the units rely on the orientation of the popper
- var measurement = (index === 1 ? !useHeight : useHeight) ? 'height' : 'width';
- var mergeWithPrevious = false;
- return op
- // This aggregates any `+` or `-` sign that aren't considered operators
- // e.g.: 10 + +5 => [10, +, +5]
- .reduce(function (a, b) {
- if (a[a.length - 1] === '' && ['+', '-'].indexOf(b) !== -1) {
- a[a.length - 1] = b;
- mergeWithPrevious = true;
- return a;
- } else if (mergeWithPrevious) {
- a[a.length - 1] += b;
- mergeWithPrevious = false;
- return a;
- } else {
- return a.concat(b);
- }
- }, [])
- // Here we convert the string values into number values (in px)
- .map(function (str) {
- return toValue(str, measurement, popperOffsets, referenceOffsets);
- });
- });
-
- // Loop trough the offsets arrays and execute the operations
- ops.forEach(function (op, index) {
- op.forEach(function (frag, index2) {
- if (isNumeric(frag)) {
- offsets[index] += frag * (op[index2 - 1] === '-' ? -1 : 1);
- }
- });
- });
- return offsets;
-}
-
-/**
- * @function
- * @memberof Modifiers
- * @argument {Object} data - The data object generated by update method
- * @argument {Object} options - Modifiers configuration and options
- * @argument {Number|String} options.offset=0
- * The offset value as described in the modifier description
- * @returns {Object} The data object, properly modified
- */
-function offset(data, _ref) {
- var offset = _ref.offset;
- var placement = data.placement,
- _data$offsets = data.offsets,
- popper = _data$offsets.popper,
- reference = _data$offsets.reference;
-
- var basePlacement = placement.split('-')[0];
-
- var offsets = void 0;
- if (isNumeric(+offset)) {
- offsets = [+offset, 0];
- } else {
- offsets = parseOffset(offset, popper, reference, basePlacement);
- }
-
- if (basePlacement === 'left') {
- popper.top += offsets[0];
- popper.left -= offsets[1];
- } else if (basePlacement === 'right') {
- popper.top += offsets[0];
- popper.left += offsets[1];
- } else if (basePlacement === 'top') {
- popper.left += offsets[0];
- popper.top -= offsets[1];
- } else if (basePlacement === 'bottom') {
- popper.left += offsets[0];
- popper.top += offsets[1];
- }
-
- data.popper = popper;
- return data;
-}
-
-/**
- * @function
- * @memberof Modifiers
- * @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 preventOverflow(data, options) {
- var boundariesElement = options.boundariesElement || getOffsetParent(data.instance.popper);
-
- // If offsetParent is the reference element, we really want to
- // go one step up and use the next offsetParent as reference to
- // avoid to make this modifier completely useless and look like broken
- if (data.instance.reference === boundariesElement) {
- boundariesElement = getOffsetParent(boundariesElement);
- }
-
- // NOTE: DOM access here
- // resets the popper's position so that the document size can be calculated excluding
- // the size of the popper element itself
- var transformProp = getSupportedPropertyName('transform');
- var popperStyles = data.instance.popper.style; // assignment to help minification
- var top = popperStyles.top,
- left = popperStyles.left,
- transform = popperStyles[transformProp];
-
- popperStyles.top = '';
- popperStyles.left = '';
- popperStyles[transformProp] = '';
-
- var boundaries = getBoundaries(data.instance.popper, data.instance.reference, options.padding, boundariesElement, data.positionFixed);
-
- // NOTE: DOM access here
- // restores the original style properties after the offsets have been computed
- popperStyles.top = top;
- popperStyles.left = left;
- popperStyles[transformProp] = transform;
-
- options.boundaries = boundaries;
-
- var order = options.priority;
- var popper = data.offsets.popper;
-
- var check = {
- primary: function primary(placement) {
- var value = popper[placement];
- if (popper[placement] < boundaries[placement] && !options.escapeWithReference) {
- value = Math.max(popper[placement], boundaries[placement]);
- }
- return defineProperty({}, placement, value);
- },
- secondary: function secondary(placement) {
- var mainSide = placement === 'right' ? 'left' : 'top';
- var value = popper[mainSide];
- if (popper[placement] > boundaries[placement] && !options.escapeWithReference) {
- value = Math.min(popper[mainSide], boundaries[placement] - (placement === 'right' ? popper.width : popper.height));
- }
- return defineProperty({}, mainSide, value);
- }
- };
-
- order.forEach(function (placement) {
- var side = ['left', 'top'].indexOf(placement) !== -1 ? 'primary' : 'secondary';
- popper = _extends({}, popper, check[side](placement));
- });
-
- data.offsets.popper = popper;
-
- return data;
-}
-
-/**
- * @function
- * @memberof Modifiers
- * @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 shift(data) {
- var placement = data.placement;
- var basePlacement = placement.split('-')[0];
- var shiftvariation = placement.split('-')[1];
-
- // if shift shiftvariation is specified, run the modifier
- if (shiftvariation) {
- var _data$offsets = data.offsets,
- reference = _data$offsets.reference,
- popper = _data$offsets.popper;
-
- var isVertical = ['bottom', 'top'].indexOf(basePlacement) !== -1;
- var side = isVertical ? 'left' : 'top';
- var measurement = isVertical ? 'width' : 'height';
-
- var shiftOffsets = {
- start: defineProperty({}, side, reference[side]),
- end: defineProperty({}, side, reference[side] + reference[measurement] - popper[measurement])
- };
-
- data.offsets.popper = _extends({}, popper, shiftOffsets[shiftvariation]);
- }
-
- return data;
-}
-
-/**
- * @function
- * @memberof Modifiers
- * @argument {Object} data - The data object generated by update method
- * @argument {Object} options - Modifiers configuration and options
- * @returns {Object} The data object, properly modified
- */
-function hide(data) {
- if (!isModifierRequired(data.instance.modifiers, 'hide', 'preventOverflow')) {
- return data;
- }
-
- var refRect = data.offsets.reference;
- var bound = find(data.instance.modifiers, function (modifier) {
- return modifier.name === 'preventOverflow';
- }).boundaries;
-
- if (refRect.bottom < bound.top || refRect.left > bound.right || refRect.top > bound.bottom || refRect.right < bound.left) {
- // Avoid unnecessary DOM access if visibility hasn't changed
- if (data.hide === true) {
- return data;
- }
-
- data.hide = true;
- data.attributes['x-out-of-boundaries'] = '';
- } else {
- // Avoid unnecessary DOM access if visibility hasn't changed
- if (data.hide === false) {
- return data;
- }
-
- data.hide = false;
- data.attributes['x-out-of-boundaries'] = false;
- }
-
- return data;
-}
-
-/**
- * @function
- * @memberof Modifiers
- * @argument {Object} data - The data object generated by `update` method
- * @argument {Object} options - Modifiers configuration and options
- * @returns {Object} The data object, properly modified
- */
-function inner(data) {
- var placement = data.placement;
- var basePlacement = placement.split('-')[0];
- var _data$offsets = data.offsets,
- popper = _data$offsets.popper,
- reference = _data$offsets.reference;
-
- var isHoriz = ['left', 'right'].indexOf(basePlacement) !== -1;
-
- var subtractLength = ['top', 'left'].indexOf(basePlacement) === -1;
-
- popper[isHoriz ? 'left' : 'top'] = reference[basePlacement] - (subtractLength ? popper[isHoriz ? 'width' : 'height'] : 0);
-
- data.placement = getOppositePlacement(placement);
- data.offsets.popper = getClientRect(popper);
-
- return data;
-}
-
-/**
- * Modifier function, each modifier can have a function of this type assigned
- * to its `fn` property.
- * These functions will be called on each update, this means that you must
- * make sure they are performant enough to avoid performance bottlenecks.
- *
- * @function ModifierFn
- * @argument {dataObject} data - The data object generated by `update` method
- * @argument {Object} options - Modifiers configuration and options
- * @returns {dataObject} The data object, properly modified
- */
-
-/**
- * Modifiers are plugins used to alter the behavior of your poppers.
- * Popper.js uses a set of 9 modifiers to provide all the basic functionalities
- * needed by the library.
- *
- * Usually you don't want to override the `order`, `fn` and `onLoad` props.
- * All the other properties are configurations that could be tweaked.
- * @namespace modifiers
- */
-var modifiers = {
- /**
- * Modifier used to shift the popper on the start or end of its reference
- * element.
- * It will read the variation of the `placement` property.
- * It can be one either `-end` or `-start`.
- * @memberof modifiers
- * @inner
- */
- shift: {
- /** @prop {number} order=100 - Index used to define the order of execution */
- order: 100,
- /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
- enabled: true,
- /** @prop {ModifierFn} */
- fn: shift
- },
-
- /**
- * The `offset` modifier can shift your popper on both its axis.
- *
- * It accepts the following units:
- * - `px` or unitless, interpreted as pixels
- * - `%` or `%r`, percentage relative to the length of the reference element
- * - `%p`, percentage relative to the length of the popper element
- * - `vw`, CSS viewport width unit
- * - `vh`, CSS viewport height unit
- *
- * For length is intended the main axis relative to the placement of the popper.
- * This means that if the placement is `top` or `bottom`, the length will be the
- * `width`. In case of `left` or `right`, it will be the height.
- *
- * You can provide a single value (as `Number` or `String`), or a pair of values
- * as `String` divided by a comma or one (or more) white spaces.
- * The latter is a deprecated method because it leads to confusion and will be
- * removed in v2.
- * Additionally, it accepts additions and subtractions between different units.
- * Note that multiplications and divisions aren't supported.
- *
- * Valid examples are:
- * ```
- * 10
- * '10%'
- * '10, 10'
- * '10%, 10'
- * '10 + 10%'
- * '10 - 5vh + 3%'
- * '-10px + 5vh, 5px - 6%'
- * ```
- * > **NB**: If you desire to apply offsets to your poppers in a way that may make them overlap
- * > with their reference element, unfortunately, you will have to disable the `flip` modifier.
- * > More on this [reading this issue](https://github.com/FezVrasta/popper.js/issues/373)
- *
- * @memberof modifiers
- * @inner
- */
- offset: {
- /** @prop {number} order=200 - Index used to define the order of execution */
- order: 200,
- /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
- enabled: true,
- /** @prop {ModifierFn} */
- fn: offset,
- /** @prop {Number|String} offset=0
- * The offset value as described in the modifier description
- */
- offset: 0
- },
-
- /**
- * Modifier used to prevent the popper from being positioned outside the boundary.
- *
- * An scenario exists where the reference itself is not within the boundaries.
- * We can say it has "escaped the boundaries" — or just "escaped".
- * In this case we need to decide whether the popper should either:
- *
- * - detach from the reference and remain "trapped" in the boundaries, or
- * - if it should ignore the boundary and "escape with its reference"
- *
- * When `escapeWithReference` is set to`true` and reference is completely
- * outside its boundaries, the popper will overflow (or completely leave)
- * the boundaries in order to remain attached to the edge of the reference.
- *
- * @memberof modifiers
- * @inner
- */
- preventOverflow: {
- /** @prop {number} order=300 - Index used to define the order of execution */
- order: 300,
- /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
- enabled: true,
- /** @prop {ModifierFn} */
- fn: preventOverflow,
- /**
- * @prop {Array} [priority=['left','right','top','bottom']]
- * Popper will try to prevent overflow following these priorities by default,
- * then, it could overflow on the left and on top of the `boundariesElement`
- */
- priority: ['left', 'right', 'top', 'bottom'],
- /**
- * @prop {number} padding=5
- * Amount of pixel used to define a minimum distance between the boundaries
- * and the popper this makes sure the popper has always a little padding
- * between the edges of its container
- */
- padding: 5,
- /**
- * @prop {String|HTMLElement} boundariesElement='scrollParent'
- * Boundaries used by the modifier, can be `scrollParent`, `window`,
- * `viewport` or any DOM element.
- */
- boundariesElement: 'scrollParent'
- },
-
- /**
- * Modifier used to make sure the reference and its popper stay near eachothers
- * without leaving any gap between the two. Expecially useful when the arrow is
- * enabled and you want to assure it to point to its reference element.
- * It cares only about the first axis, you can still have poppers with margin
- * between the popper and its reference element.
- * @memberof modifiers
- * @inner
- */
- keepTogether: {
- /** @prop {number} order=400 - Index used to define the order of execution */
- order: 400,
- /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
- enabled: true,
- /** @prop {ModifierFn} */
- fn: keepTogether
- },
-
- /**
- * This modifier is used to move the `arrowElement` of the popper to make
- * sure it is positioned between the reference element and its popper element.
- * It will read the outer size of the `arrowElement` node to detect how many
- * pixels of conjuction are needed.
- *
- * It has no effect if no `arrowElement` is provided.
- * @memberof modifiers
- * @inner
- */
- arrow: {
- /** @prop {number} order=500 - Index used to define the order of execution */
- order: 500,
- /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
- enabled: true,
- /** @prop {ModifierFn} */
- fn: arrow,
- /** @prop {String|HTMLElement} element='[x-arrow]' - Selector or node used as arrow */
- element: '[x-arrow]'
- },
-
- /**
- * Modifier used to flip the popper's placement when it starts to overlap its
- * reference element.
- *
- * Requires the `preventOverflow` modifier before it in order to work.
- *
- * **NOTE:** this modifier will interrupt the current update cycle and will
- * restart it if it detects the need to flip the placement.
- * @memberof modifiers
- * @inner
- */
- flip: {
- /** @prop {number} order=600 - Index used to define the order of execution */
- order: 600,
- /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
- enabled: true,
- /** @prop {ModifierFn} */
- fn: flip,
- /**
- * @prop {String|Array} behavior='flip'
- * The behavior used to change the popper's placement. It can be one of
- * `flip`, `clockwise`, `counterclockwise` or an array with a list of valid
- * placements (with optional variations).
- */
- behavior: 'flip',
- /**
- * @prop {number} padding=5
- * The popper will flip if it hits the edges of the `boundariesElement`
- */
- padding: 5,
- /**
- * @prop {String|HTMLElement} boundariesElement='viewport'
- * The element which will define the boundaries of the popper position,
- * the popper will never be placed outside of the defined boundaries
- * (except if keepTogether is enabled)
- */
- boundariesElement: 'viewport'
- },
-
- /**
- * Modifier used to make the popper flow toward the inner of the reference element.
- * By default, when this modifier is disabled, the popper will be placed outside
- * the reference element.
- * @memberof modifiers
- * @inner
- */
- inner: {
- /** @prop {number} order=700 - Index used to define the order of execution */
- order: 700,
- /** @prop {Boolean} enabled=false - Whether the modifier is enabled or not */
- enabled: false,
- /** @prop {ModifierFn} */
- fn: inner
- },
-
- /**
- * Modifier used to hide the popper when its reference element is outside of the
- * popper boundaries. It will set a `x-out-of-boundaries` attribute which can
- * be used to hide with a CSS selector the popper when its reference is
- * out of boundaries.
- *
- * Requires the `preventOverflow` modifier before it in order to work.
- * @memberof modifiers
- * @inner
- */
- hide: {
- /** @prop {number} order=800 - Index used to define the order of execution */
- order: 800,
- /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
- enabled: true,
- /** @prop {ModifierFn} */
- fn: hide
- },
-
- /**
- * Computes the style that will be applied to the popper element to gets
- * properly positioned.
- *
- * Note that this modifier will not touch the DOM, it just prepares the styles
- * so that `applyStyle` modifier can apply it. This separation is useful
- * in case you need to replace `applyStyle` with a custom implementation.
- *
- * This modifier has `850` as `order` value to maintain backward compatibility
- * with previous versions of Popper.js. Expect the modifiers ordering method
- * to change in future major versions of the library.
- *
- * @memberof modifiers
- * @inner
- */
- computeStyle: {
- /** @prop {number} order=850 - Index used to define the order of execution */
- order: 850,
- /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
- enabled: true,
- /** @prop {ModifierFn} */
- fn: computeStyle,
- /**
- * @prop {Boolean} gpuAcceleration=true
- * If true, it uses the CSS 3d transformation to position the popper.
- * Otherwise, it will use the `top` and `left` properties.
- */
- gpuAcceleration: true,
- /**
- * @prop {string} [x='bottom']
- * Where to anchor the X axis (`bottom` or `top`). AKA X offset origin.
- * Change this if your popper should grow in a direction different from `bottom`
- */
- x: 'bottom',
- /**
- * @prop {string} [x='left']
- * Where to anchor the Y axis (`left` or `right`). AKA Y offset origin.
- * Change this if your popper should grow in a direction different from `right`
- */
- y: 'right'
- },
-
- /**
- * Applies the computed styles to the popper element.
- *
- * All the DOM manipulations are limited to this modifier. This is useful in case
- * you want to integrate Popper.js inside a framework or view library and you
- * want to delegate all the DOM manipulations to it.
- *
- * Note that if you disable this modifier, you must make sure the popper element
- * has its position set to `absolute` before Popper.js can do its work!
- *
- * Just disable this modifier and define you own to achieve the desired effect.
- *
- * @memberof modifiers
- * @inner
- */
- applyStyle: {
- /** @prop {number} order=900 - Index used to define the order of execution */
- order: 900,
- /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
- enabled: true,
- /** @prop {ModifierFn} */
- fn: applyStyle,
- /** @prop {Function} */
- onLoad: applyStyleOnLoad,
- /**
- * @deprecated since version 1.10.0, the property moved to `computeStyle` modifier
- * @prop {Boolean} gpuAcceleration=true
- * If true, it uses the CSS 3d transformation to position the popper.
- * Otherwise, it will use the `top` and `left` properties.
- */
- gpuAcceleration: undefined
- }
-};
-
-/**
- * The `dataObject` is an object containing all the informations used by Popper.js
- * this object get passed to modifiers and to the `onCreate` and `onUpdate` callbacks.
- * @name dataObject
- * @property {Object} data.instance The Popper.js instance
- * @property {String} data.placement Placement applied to popper
- * @property {String} data.originalPlacement Placement originally defined on init
- * @property {Boolean} data.flipped True if popper has been flipped by flip modifier
- * @property {Boolean} data.hide True if the reference element is out of boundaries, useful to know when to hide the popper.
- * @property {HTMLElement} data.arrowElement Node used as arrow by arrow modifier
- * @property {Object} data.styles Any CSS property defined here will be applied to the popper, it expects the JavaScript nomenclature (eg. `marginBottom`)
- * @property {Object} data.arrowStyles Any CSS property defined here will be applied to the popper arrow, it expects the JavaScript nomenclature (eg. `marginBottom`)
- * @property {Object} data.boundaries Offsets of the popper boundaries
- * @property {Object} data.offsets The measurements of popper, reference and arrow elements.
- * @property {Object} data.offsets.popper `top`, `left`, `width`, `height` values
- * @property {Object} data.offsets.reference `top`, `left`, `width`, `height` values
- * @property {Object} data.offsets.arrow] `top` and `left` offsets, only one of them will be different from 0
- */
-
-/**
- * Default options provided to Popper.js constructor.
- * These can be overriden using the `options` argument of Popper.js.
- * To override an option, simply pass as 3rd argument an object with the same
- * structure of this object, example:
- * ```
- * new Popper(ref, pop, {
- * modifiers: {
- * preventOverflow: { enabled: false }
- * }
- * })
- * ```
- * @type {Object}
- * @static
- * @memberof Popper
- */
-var Defaults = {
- /**
- * Popper's placement
- * @prop {Popper.placements} placement='bottom'
- */
- placement: 'bottom',
-
- /**
- * Set this to true if you want popper to position it self in 'fixed' mode
- * @prop {Boolean} positionFixed=false
- */
- positionFixed: false,
-
- /**
- * Whether events (resize, scroll) are initially enabled
- * @prop {Boolean} eventsEnabled=true
- */
- eventsEnabled: true,
-
- /**
- * Set to true if you want to automatically remove the popper when
- * you call the `destroy` method.
- * @prop {Boolean} removeOnDestroy=false
- */
- removeOnDestroy: false,
-
- /**
- * Callback called when the popper is created.
- * By default, is set to no-op.
- * Access Popper.js instance with `data.instance`.
- * @prop {onCreate}
- */
- onCreate: function onCreate() {},
-
- /**
- * Callback called when the popper is updated, this callback is not called
- * on the initialization/creation of the popper, but only on subsequent
- * updates.
- * By default, is set to no-op.
- * Access Popper.js instance with `data.instance`.
- * @prop {onUpdate}
- */
- onUpdate: function onUpdate() {},
-
- /**
- * List of modifiers used to modify the offsets before they are applied to the popper.
- * They provide most of the functionalities of Popper.js
- * @prop {modifiers}
- */
- modifiers: modifiers
-};
-
-/**
- * @callback onCreate
- * @param {dataObject} data
- */
-
-/**
- * @callback onUpdate
- * @param {dataObject} data
- */
-
-// Utils
-// Methods
-var Popper = function () {
- /**
- * Create a new Popper.js instance
- * @class Popper
- * @param {HTMLElement|referenceObject} reference - The reference element used to position the popper
- * @param {HTMLElement} popper - The HTML element used as popper.
- * @param {Object} options - Your custom options to override the ones defined in [Defaults](#defaults)
- * @return {Object} instance - The generated Popper.js instance
- */
- function Popper(reference, popper) {
- var _this = this;
-
- var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
- classCallCheck(this, Popper);
-
- this.scheduleUpdate = function () {
- return requestAnimationFrame(_this.update);
- };
-
- // make update() debounced, so that it only runs at most once-per-tick
- this.update = debounce(this.update.bind(this));
-
- // with {} we create a new object with the options inside it
- this.options = _extends({}, Popper.Defaults, options);
-
- // init state
- this.state = {
- isDestroyed: false,
- isCreated: false,
- scrollParents: []
- };
-
- // get reference and popper elements (allow jQuery wrappers)
- this.reference = reference && reference.jquery ? reference[0] : reference;
- this.popper = popper && popper.jquery ? popper[0] : popper;
-
- // Deep merge modifiers options
- this.options.modifiers = {};
- Object.keys(_extends({}, Popper.Defaults.modifiers, options.modifiers)).forEach(function (name) {
- _this.options.modifiers[name] = _extends({}, Popper.Defaults.modifiers[name] || {}, options.modifiers ? options.modifiers[name] : {});
- });
-
- // Refactoring modifiers' list (Object => Array)
- this.modifiers = Object.keys(this.options.modifiers).map(function (name) {
- return _extends({
- name: name
- }, _this.options.modifiers[name]);
- })
- // sort the modifiers by order
- .sort(function (a, b) {
- return a.order - b.order;
- });
-
- // modifiers have the ability to execute arbitrary code when Popper.js get inited
- // such code is executed in the same order of its modifier
- // they could add new properties to their options configuration
- // BE AWARE: don't add options to `options.modifiers.name` but to `modifierOptions`!
- this.modifiers.forEach(function (modifierOptions) {
- if (modifierOptions.enabled && isFunction(modifierOptions.onLoad)) {
- modifierOptions.onLoad(_this.reference, _this.popper, _this.options, modifierOptions, _this.state);
- }
- });
-
- // fire the first update to position the popper in the right place
- this.update();
-
- var eventsEnabled = this.options.eventsEnabled;
- if (eventsEnabled) {
- // setup event listeners, they will take care of update the position in specific situations
- this.enableEventListeners();
- }
-
- this.state.eventsEnabled = eventsEnabled;
- }
-
- // We can't use class properties because they don't get listed in the
- // class prototype and break stuff like Sinon stubs
-
-
- createClass(Popper, [{
- key: 'update',
- value: function update$$1() {
- return update.call(this);
- }
- }, {
- key: 'destroy',
- value: function destroy$$1() {
- return destroy.call(this);
- }
- }, {
- key: 'enableEventListeners',
- value: function enableEventListeners$$1() {
- return enableEventListeners.call(this);
- }
- }, {
- key: 'disableEventListeners',
- value: function disableEventListeners$$1() {
- return disableEventListeners.call(this);
- }
-
- /**
- * Schedule an update, it will run on the next UI update available
- * @method scheduleUpdate
- * @memberof Popper
- */
-
-
- /**
- * Collection of utilities useful when writing custom modifiers.
- * Starting from version 1.7, this method is available only if you
- * include `popper-utils.js` before `popper.js`.
- *
- * **DEPRECATION**: This way to access PopperUtils is deprecated
- * and will be removed in v2! Use the PopperUtils module directly instead.
- * Due to the high instability of the methods contained in Utils, we can't
- * guarantee them to follow semver. Use them at your own risk!
- * @static
- * @private
- * @type {Object}
- * @deprecated since version 1.8
- * @member Utils
- * @memberof Popper
- */
-
- }]);
- return Popper;
-}();
-
-/**
- * The `referenceObject` is an object that provides an interface compatible with Popper.js
- * and lets you use it as replacement of a real DOM node.
- * You can use this method to position a popper relatively to a set of coordinates
- * in case you don't have a DOM node to use as reference.
- *
- * ```
- * new Popper(referenceObject, popperNode);
- * ```
- *
- * NB: This feature isn't supported in Internet Explorer 10
- * @name referenceObject
- * @property {Function} data.getBoundingClientRect
- * A function that returns a set of coordinates compatible with the native `getBoundingClientRect` method.
- * @property {number} data.clientWidth
- * An ES6 getter that will return the width of the virtual reference element.
- * @property {number} data.clientHeight
- * An ES6 getter that will return the height of the virtual reference element.
- */
-
-
-Popper.Utils = (typeof window !== 'undefined' ? window : global).PopperUtils;
-Popper.placements = placements;
-Popper.Defaults = Defaults;
-
-return Popper;
-
-})));
-//# sourceMappingURL=popper.js.map
diff --git a/js/popper.min.js b/js/popper.min.js
deleted file mode 100644
index 0f20d2a..0000000
--- a/js/popper.min.js
+++ /dev/null
@@ -1,5 +0,0 @@
-/*
- Copyright (C) Federico Zivolo 2017
- Distributed under the MIT License (license terms are at http://opensource.org/licenses/MIT).
- */(function(e,t){'object'==typeof exports&&'undefined'!=typeof module?module.exports=t():'function'==typeof define&&define.amd?define(t):e.Popper=t()})(this,function(){'use strict';function e(e){return e&&'[object Function]'==={}.toString.call(e)}function t(e,t){if(1!==e.nodeType)return[];var o=getComputedStyle(e,null);return t?o[t]:o}function o(e){return'HTML'===e.nodeName?e:e.parentNode||e.host}function n(e){if(!e)return document.body;switch(e.nodeName){case'HTML':case'BODY':return e.ownerDocument.body;case'#document':return e.body;}var i=t(e),r=i.overflow,p=i.overflowX,s=i.overflowY;return /(auto|scroll)/.test(r+s+p)?e:n(o(e))}function r(e){var o=e&&e.offsetParent,i=o&&o.nodeName;return i&&'BODY'!==i&&'HTML'!==i?-1!==['TD','TABLE'].indexOf(o.nodeName)&&'static'===t(o,'position')?r(o):o:e?e.ownerDocument.documentElement:document.documentElement}function p(e){var t=e.nodeName;return'BODY'!==t&&('HTML'===t||r(e.firstElementChild)===e)}function s(e){return null===e.parentNode?e:s(e.parentNode)}function d(e,t){if(!e||!e.nodeType||!t||!t.nodeType)return document.documentElement;var o=e.compareDocumentPosition(t)&Node.DOCUMENT_POSITION_FOLLOWING,i=o?e:t,n=o?t:e,a=document.createRange();a.setStart(i,0),a.setEnd(n,0);var l=a.commonAncestorContainer;if(e!==l&&t!==l||i.contains(n))return p(l)?l:r(l);var f=s(e);return f.host?d(f.host,t):d(e,s(t).host)}function a(e){var t=1=o.clientWidth&&i>=o.clientHeight}),l=0i[e]&&!t.escapeWithReference&&(n=_(p[o],i[e]-('right'===e?p.width:p.height))),pe({},o,n)}};return n.forEach(function(e){var t=-1===['left','top'].indexOf(e)?'secondary':'primary';p=se({},p,s[t](e))}),e.offsets.popper=p,e},priority:['left','right','top','bottom'],padding:5,boundariesElement:'scrollParent'},keepTogether:{order:400,enabled:!0,fn:function(e){var t=e.offsets,o=t.popper,i=t.reference,n=e.placement.split('-')[0],r=X,p=-1!==['top','bottom'].indexOf(n),s=p?'right':'bottom',d=p?'left':'top',a=p?'width':'height';return o[s]r(i[s])&&(e.offsets.popper[d]=r(i[s])),e}},arrow:{order:500,enabled:!0,fn:function(e,o){var i;if(!F(e.instance.modifiers,'arrow','keepTogether'))return e;var n=o.element;if('string'==typeof n){if(n=e.instance.popper.querySelector(n),!n)return e;}else if(!e.instance.popper.contains(n))return console.warn('WARNING: `arrow.element` must be child of its popper element!'),e;var r=e.placement.split('-')[0],p=e.offsets,s=p.popper,d=p.reference,a=-1!==['left','right'].indexOf(r),l=a?'height':'width',f=a?'Top':'Left',m=f.toLowerCase(),h=a?'left':'top',g=a?'bottom':'right',u=L(n)[l];d[g]-us[g]&&(e.offsets.popper[m]+=d[m]+u-s[g]),e.offsets.popper=c(e.offsets.popper);var b=d[m]+d[l]/2-u/2,w=t(e.instance.popper),y=parseFloat(w['margin'+f],10),E=parseFloat(w['border'+f+'Width'],10),v=b-e.offsets.popper[m]-y-E;return v=J(_(s[l]-u,v),0),e.arrowElement=n,e.offsets.arrow=(i={},pe(i,m,Math.round(v)),pe(i,h,''),i),e},element:'[x-arrow]'},flip:{order:600,enabled:!0,fn:function(e,t){if(k(e.instance.modifiers,'inner'))return e;if(e.flipped&&e.placement===e.originalPlacement)return e;var o=y(e.instance.popper,e.instance.reference,t.padding,t.boundariesElement),i=e.placement.split('-')[0],n=x(i),r=e.placement.split('-')[1]||'',p=[];switch(t.behavior){case le.FLIP:p=[i,n];break;case le.CLOCKWISE:p=q(i);break;case le.COUNTERCLOCKWISE:p=q(i,!0);break;default:p=t.behavior;}return p.forEach(function(s,d){if(i!==s||p.length===d+1)return e;i=e.placement.split('-')[0],n=x(i);var a=e.offsets.popper,l=e.offsets.reference,f=X,m='left'===i&&f(a.right)>f(l.left)||'right'===i&&f(a.left)f(l.top)||'bottom'===i&&f(a.top)f(o.right),g=f(a.top)f(o.bottom),b='left'===i&&h||'right'===i&&c||'top'===i&&g||'bottom'===i&&u,w=-1!==['top','bottom'].indexOf(i),y=!!t.flipVariations&&(w&&'start'===r&&h||w&&'end'===r&&c||!w&&'start'===r&&g||!w&&'end'===r&&u);(m||b||y)&&(e.flipped=!0,(m||b)&&(i=p[d+1]),y&&(r=K(r)),e.placement=i+(r?'-'+r:''),e.offsets.popper=se({},e.offsets.popper,S(e.instance.popper,e.offsets.reference,e.placement)),e=C(e.instance.modifiers,e,'flip'))}),e},behavior:'flip',padding:5,boundariesElement:'viewport'},inner:{order:700,enabled:!1,fn:function(e){var t=e.placement,o=t.split('-')[0],i=e.offsets,n=i.popper,r=i.reference,p=-1!==['left','right'].indexOf(o),s=-1===['top','left'].indexOf(o);return n[p?'left':'top']=r[o]-(s?n[p?'width':'height']:0),e.placement=x(t),e.offsets.popper=c(n),e}},hide:{order:800,enabled:!0,fn:function(e){if(!F(e.instance.modifiers,'hide','preventOverflow'))return e;var t=e.offsets.reference,o=T(e.instance.modifiers,function(e){return'preventOverflow'===e.name}).boundaries;if(t.bottomo.right||t.top>o.bottom||t.right