-/**
- * @fileOverview Kickass library to create and place poppers near their reference elements.
- * @version 0.6.4
- * @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.
- */
-
-//
-// Cross module loader
-// Supported: Node, AMD, Browser globals
-//
-;(function (root, factory) {
- if (typeof define === 'function' && define.amd) {
- // AMD. Register as an anonymous module.
- define(factory);
- } else if (typeof module === 'object' && module.exports) {
- // Node. Does not work with strict CommonJS, but
- // only CommonJS-like environments that support module.exports,
- // like Node.
- module.exports = factory();
- } else {
- // Browser globals (root is window)
- root.Popper = factory();
- }
-}(this, function () {
-
- 'use strict';
-
- var root = window;
-
- // default options
- var DEFAULTS = {
- // placement of the popper
- placement: 'bottom',
-
- gpuAcceleration: true,
-
- // shift popper from its origin by the given amount of pixels (can be negative)
- offset: 0,
-
- // the element which will act as boundary of the popper
- boundariesElement: 'viewport',
-
- // amount of pixel used to define a minimum distance between the boundaries and the popper
- boundariesPadding: 5,
-
- // popper will try to prevent overflow following this order,
- // by default, then, it could overflow on the left and on top of the boundariesElement
- preventOverflowOrder: ['left', 'right', 'top', 'bottom'],
-
- // the behavior used by flip to change the placement of the popper
- flipBehavior: 'flip',
-
- arrowElement: '[x-arrow]',
-
- // list of functions used to modify the offsets before they are applied to the popper
- modifiers: [ 'shift', 'offset', 'preventOverflow', 'keepTogether', 'arrow', 'flip', 'applyStyle'],
-
- modifiersIgnored: [],
- };
-
- /**
- * Create a new Popper.js instance
- * @constructor Popper
- * @param {HTMLElement} reference - The reference element used to position the popper
- * @param {HTMLElement|Object} popper
- * The HTML element used as popper, or a configuration used to generate the popper.
- * @param {String} [popper.tagName='div'] The tag name of the generated popper.
- * @param {Array} [popper.classNames=['popper']] Array of classes to apply to the generated popper.
- * @param {Array} [popper.attributes] Array of attributes to apply, specify `attr:value` to assign a value to it.
- * @param {HTMLElement|String} [popper.parent=window.document.body] The parent element, given as HTMLElement or as query string.
- * @param {String} [popper.content=''] The content of the popper, it can be text, html, or node; if it is not text, set `contentType` to `html` or `node`.
- * @param {String} [popper.contentType='text'] If `html`, the `content` will be parsed as HTML. If `node`, it will be appended as-is.
- * @param {String} [popper.arrowTagName='div'] Same as `popper.tagName` but for the arrow element.
- * @param {Array} [popper.arrowClassNames='popper__arrow'] Same as `popper.classNames` but for the arrow element.
- * @param {String} [popper.arrowAttributes=['x-arrow']] Same as `popper.attributes` but for the arrow element.
- * @param {Object} options
- * @param {String} [options.placement=bottom]
- * Placement of the popper accepted values: `top(-start, -end), right(-start, -end), bottom(-start, -right),
- * left(-start, -end)`
- *
- * @param {HTMLElement|String} [options.arrowElement='[x-arrow]']
- * The DOM Node used as arrow for the popper, or a CSS selector used to get the DOM node. It must be child of
- * its parent Popper. Popper.js will apply to the given element the style required to align the arrow with its
- * reference element.
- * By default, it will look for a child node of the popper with the `x-arrow` attribute.
- *
- * @param {Boolean} [options.gpuAcceleration=true]
- * When this property is set to true, the popper position will be applied using CSS3 translate3d, allowing the
- * browser to use the GPU to accelerate the rendering.
- * If set to false, the popper will be placed using `top` and `left` properties, not using the GPU.
- *
- * @param {Number} [options.offset=0]
- * Amount of pixels the popper will be shifted (can be negative).
- *
- * @param {String|Element} [options.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)
- *
- * @param {Number} [options.boundariesPadding=5]
- * Additional padding for the boundaries
- *
- * @param {Array} [options.preventOverflowOrder=['left', 'right', 'top', 'bottom']]
- * Order used when Popper.js tries to avoid overflows from the boundaries, they will be checked in order,
- * this means that the last ones will never overflow
- *
- * @param {String|Array} [options.flipBehavior='flip']
- * The behavior used by the `flip` modifier to change the placement of the popper when the latter is trying to
- * overlap its reference element. Defining `flip` as value, the placement will be flipped on
- * its axis (`right - left`, `top - bottom`).
- * You can even pass an array of placements (eg: `['right', 'left', 'top']` ) to manually specify
- * how alter the placement when a flip is needed. (eg. in the above example, it would first flip from right to left,
- * then, if even in its new placement, the popper is overlapping its reference element, it will be moved to top)
- *
- * @param {Array} [options.modifiers=[ 'shift', 'offset', 'preventOverflow', 'keepTogether', 'arrow', 'flip', 'applyStyle']]
- * List of functions used to modify the data before they are applied to the popper, add your custom functions
- * to this array to edit the offsets and placement.
- * The function should reflect the @params and @returns of preventOverflow
- *
- * @param {Array} [options.modifiersIgnored=[]]
- * Put here any built-in modifier name you want to exclude from the modifiers list
- * The function should reflect the @params and @returns of preventOverflow
- *
- * @param {Boolean} [options.removeOnDestroy=false]
- * Set to true if you want to automatically remove the popper when you call the `destroy` method.
- */
- function Popper(reference, popper, options) {
- this._reference = reference.jquery ? reference[0] : reference;
- this.state = { onCreateCalled: false };
-
- // if the popper variable is a configuration object, parse it to generate an HTMLElement
- // generate a default popper if is not defined
- var isNotDefined = typeof popper === 'undefined' || popper === null;
- var isConfig = popper && Object.prototype.toString.call(popper) === '[object Object]';
- if (isNotDefined || isConfig) {
- this._popper = this.parse(isConfig ? popper : {});
- }
- // otherwise, use the given HTMLElement as popper
- else {
- this._popper = popper.jquery ? popper[0] : popper;
- }
-
- // with {} we create a new object with the options inside it
- this._options = Object.assign({}, DEFAULTS, options);
-
- // refactoring modifiers' list
- this._options.modifiers = this._options.modifiers.map(function(modifier){
- // remove ignored modifiers
- if (this._options.modifiersIgnored.indexOf(modifier) !== -1) return;
-
- // 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
- if (modifier === 'applyStyle') {
- this._popper.setAttribute('x-placement', this._options.placement);
- }
-
- // return predefined modifier identified by string or keep the custom one
- return this.modifiers[modifier] || modifier;
- }.bind(this));
-
- // make sure to apply the popper position before any computation
- this.state.position = this._getPosition(this._popper, this._reference);
- setStyle(this._popper, { position: this.state.position});
-
- // determine how we should set the origin of offsets
- this.state.isParentTransformed = this._getIsParentTransformed(this._popper);
-
- // fire the first update to position the popper in the right place
- this.update();
-
- // setup event listeners, they will take care of update the position in specific situations
- this._setupEventListeners();
- return this;
- }
-
-
- //
- // Methods
- //
- /**
- * Destroy the popper
- * @method
- * @memberof Popper
- */
- Popper.prototype.destroy = function() {
- this._popper.removeAttribute('x-placement');
- this._popper.style.left = '';
- this._popper.style.position = '';
- this._popper.style.top = '';
- this._popper.style[getSupportedPropertyName('transform')] = '';
- this._removeEventListeners();
-
- // remove the popper if user explicity asked for the deletion on destroy
- if (this._options.removeOnDestroy) {
- this._popper.parentNode.removeChild(this._popper);
- }
- return this;
- };
-
- /**
- * Updates the position of the popper, computing the new offsets and applying the new style
- * @method
- * @memberof Popper
- */
- Popper.prototype.update = function() {
- var data = { instance: this, styles: {} };
-
- // make sure to apply the popper position before any computation
- this.state.position = this._getPosition(this._popper, this._reference);
- setStyle(this._popper, { position: this.state.position});
-
- // to avoid useless computations we throttle the popper position refresh to 60fps
- root.requestAnimationFrame(function() {
- var now = root.performance.now();
- if(now - this.state.lastFrame <= 16) {
- // this update fired to early! drop it
- return;
- }
- this.state.lastFrame = now;
-
- // 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 = this._options.placement;
- data._originalPlacement = this._options.placement;
-
- // compute the popper and trigger offsets and put them inside data.offsets
- data.offsets = this._getOffsets(this._popper, this._reference, data.placement);
-
- // get boundaries
- data.boundaries = this._getBoundaries(data, this._options.boundariesPadding, this._options.boundariesElement);
-
- data = this.runModifiers(data, this._options.modifiers);
-
- if (!isFunction(this.state.createCalback)) {
- this.state.onCreateCalled = true;
- }
- if (!this.state.onCreateCalled) {
- this.state.onCreateCalled = true;
- if (isFunction(this.state.createCalback)) {
- this.state.createCalback(this);
- }
- } else if (isFunction(this.state.updateCallback)) {
- this.state.updateCallback(data);
- }
- }.bind(this));
- };
-
- /**
- * If a function is passed, it will be executed after the initialization of popper with as first argument the Popper instance.
- * @method
- * @memberof Popper
- * @param {Function} callback
- */
- Popper.prototype.onCreate = function(callback) {
- // the createCallbacks return as first argument the popper instance
- this.state.createCalback = callback;
- return this;
- };
-
- /**
- * If a function is passed, it will be executed after each update of popper with as first argument the set of coordinates and informations
- * used to style popper and its arrow.
- * NOTE: it doesn't get fired on the first call of the `Popper.update()` method inside the `Popper` constructor!
- * @method
- * @memberof Popper
- * @param {Function} callback
- */
- Popper.prototype.onUpdate = function(callback) {
- this.state.updateCallback = callback;
- return this;
- };
-
- /**
- * Helper used to generate poppers from a configuration file
- * @method
- * @memberof Popper
- * @param config {Object} configuration
- * @returns {HTMLElement} popper
- */
- Popper.prototype.parse = function(config) {
- var defaultConfig = {
- tagName: 'div',
- classNames: [ 'popper' ],
- attributes: [],
- parent: root.document.body,
- content: '',
- contentType: 'text',
- arrowTagName: 'div',
- arrowClassNames: [ 'popper__arrow' ],
- arrowAttributes: [ 'x-arrow']
- };
- config = Object.assign({}, defaultConfig, config);
-
- var d = root.document;
-
- var popper = d.createElement(config.tagName);
- addClassNames(popper, config.classNames);
- addAttributes(popper, config.attributes);
- if (config.contentType === 'node') {
- popper.appendChild(config.content.jquery ? config.content[0] : config.content);
- }else if (config.contentType === 'html') {
- popper.innerHTML = config.content;
- } else {
- popper.textContent = config.content;
- }
-
- if (config.arrowTagName) {
- var arrow = d.createElement(config.arrowTagName);
- addClassNames(arrow, config.arrowClassNames);
- addAttributes(arrow, config.arrowAttributes);
- popper.appendChild(arrow);
- }
-
- var parent = config.parent.jquery ? config.parent[0] : config.parent;
-
- // if the given parent is a string, use it to match an element
- // if more than one element is matched, the first one will be used as parent
- // if no elements are matched, the script will throw an error
- if (typeof parent === 'string') {
- parent = d.querySelectorAll(config.parent);
- if (parent.length > 1) {
- console.warn('WARNING: the given `parent` query(' + config.parent + ') matched more than one element, the first one will be used');
- }
- if (parent.length === 0) {
- throw 'ERROR: the given `parent` doesn\'t exists!';
- }
- parent = parent[0];
- }
- // if the given parent is a DOM nodes list or an array of nodes with more than one element,
- // the first one will be used as parent
- if (parent.length > 1 && parent instanceof Element === false) {
- console.warn('WARNING: you have passed as parent a list of elements, the first one will be used');
- parent = parent[0];
- }
-
- // append the generated popper to its parent
- parent.appendChild(popper);
-
- return popper;
-
- /**
- * Adds class names to the given element
- * @function
- * @ignore
- * @param {HTMLElement} target
- * @param {Array} classes
- */
- function addClassNames(element, classNames) {
- classNames.forEach(function(className) {
- element.classList.add(className);
- });
- }
-
- /**
- * Adds attributes to the given element
- * @function
- * @ignore
- * @param {HTMLElement} target
- * @param {Array} attributes
- * @example
- * addAttributes(element, [ 'data-info:foobar' ]);
- */
- function addAttributes(element, attributes) {
- attributes.forEach(function(attribute) {
- element.setAttribute(attribute.split(':')[0], attribute.split(':')[1] || '');
- });
- }
-
- };
-
- /**
- * Helper used to get the position which will be applied to the popper
- * @method
- * @memberof Popper
- * @param config {HTMLElement} popper element
- * @returns {HTMLElement} reference element
- */
- Popper.prototype._getPosition = function(popper, reference) {
- var container = getOffsetParent(reference);
-
- // Decide if the popper will be fixed
- // If the reference element is inside a fixed context, the popper will be fixed as well to allow them to scroll together
- var isParentFixed = isFixed(container);
- return isParentFixed ? 'fixed' : 'absolute';
- };
-
- /**
- * Helper used to determine if the popper's parent is transformed.
- * @param {[type]} popper [description]
- * @return {[type]} [description]
- */
- Popper.prototype._getIsParentTransformed = function(popper) {
- return isTransformed(popper.parentNode);
- };
-
- /**
- * Get offsets to the popper
- * @method
- * @memberof Popper
- * @access private
- * @param {Element} popper - the popper element
- * @param {Element} reference - the reference element (the popper will be relative to this)
- * @returns {Object} An object containing the offsets which will be applied to the popper
- */
- Popper.prototype._getOffsets = function(popper, reference, placement) {
- placement = placement.split('-')[0];
- var popperOffsets = {};
-
- popperOffsets.position = this.state.position;
- var isParentFixed = popperOffsets.position === 'fixed';
-
- var isParentTransformed = this.state.isParentTransformed;
-
- //
- // Get reference element position
- //
- var offsetParent = (isParentFixed && isParentTransformed) ? getOffsetParent(reference) : getOffsetParent(popper);
- var referenceOffsets = getOffsetRectRelativeToCustomParent(reference, offsetParent, isParentFixed, isParentTransformed);
-
- //
- // Get popper sizes
- //
- var popperRect = getOuterSizes(popper);
-
- //
- // Compute offsets of popper
- //
-
- // depending by the popper placement we have to compute its offsets slightly differently
- if (['right', 'left'].indexOf(placement) !== -1) {
- popperOffsets.top = referenceOffsets.top + referenceOffsets.height / 2 - popperRect.height / 2;
- if (placement === 'left') {
- popperOffsets.left = referenceOffsets.left - popperRect.width;
- } else {
- popperOffsets.left = referenceOffsets.right;
- }
- } else {
- popperOffsets.left = referenceOffsets.left + referenceOffsets.width / 2 - popperRect.width / 2;
- if (placement === 'top') {
- popperOffsets.top = referenceOffsets.top - popperRect.height;
- } else {
- popperOffsets.top = referenceOffsets.bottom;
- }
- }
-
- // Add width and height to our offsets object
- popperOffsets.width = popperRect.width;
- popperOffsets.height = popperRect.height;
-
-
- return {
- popper: popperOffsets,
- reference: referenceOffsets
- };
- };
-
-
- /**
- * Setup needed event listeners used to update the popper position
- * @method
- * @memberof Popper
- * @access private
- */
- Popper.prototype._setupEventListeners = function() {
- // NOTE: 1 DOM access here
- this.state.updateBound = this.update.bind(this);
- root.addEventListener('resize', this.state.updateBound);
- // if the boundariesElement is window we don't need to listen for the scroll event
- if (this._options.boundariesElement !== 'window') {
- var target = getScrollParent(this._reference);
- // here it could be both `body` or `documentElement` thanks to Firefox, we then check both
- if (target === root.document.body || target === root.document.documentElement) {
- target = root;
- }
- target.addEventListener('scroll', this.state.updateBound);
- }
- };
- /**
- * Remove event listeners used to update the popper position
- * @method
- * @memberof Popper
- * @access private
- */
- Popper.prototype._removeEventListeners = function() {
- // NOTE: 1 DOM access here
- root.removeEventListener('resize', this.state.updateBound);
- if (this._options.boundariesElement !== 'window') {
- var target = getScrollParent(this._reference);
- // here it could be both `body` or `documentElement` thanks to Firefox, we then check both
- if (target === root.document.body || target === root.document.documentElement) {
- target = root;
- }
- target.removeEventListener('scroll', this.state.updateBound);
- }
- this.state.updateBound = null;
- };
-
- /**
- * Computed the boundaries limits and return them
- * @method
- * @memberof Popper
- * @access private
- * @param {Object} data - Object containing the property "offsets" generated by `_getOffsets`
- * @param {Number} padding - Boundaries padding
- * @param {Element} boundariesElement - Element used to define the boundaries
- * @returns {Object} Coordinates of the boundaries
- */
- Popper.prototype._getBoundaries = function(data, padding, boundariesElement) {
- // NOTE: 1 DOM access here
- var boundaries = {};
- var width, height;
- if (boundariesElement === 'window') {
- var body = root.document.body,
- html = root.document.documentElement;
-
- height = Math.max( body.scrollHeight, body.offsetHeight, html.clientHeight, html.scrollHeight, html.offsetHeight );
- width = Math.max( body.scrollWidth, body.offsetWidth, html.clientWidth, html.scrollWidth, html.offsetWidth );
-
- boundaries = {
- top: 0,
- right: width,
- bottom: height,
- left: 0
- };
- } else if (boundariesElement === 'viewport') {
- var offsetParent = getOffsetParent(this._popper);
- var scrollParent = getScrollParent(this._popper);
- var offsetParentRect = getOffsetRect(offsetParent);
-
- // if the popper is fixed we don't have to substract scrolling from the boundaries
- var scrollTop = data.offsets.popper.position === 'fixed' ? 0 : scrollParent.scrollTop;
- var scrollLeft = data.offsets.popper.position === 'fixed' ? 0 : scrollParent.scrollLeft;
-
- boundaries = {
- top: 0 - (offsetParentRect.top - scrollTop),
- right: root.document.documentElement.clientWidth - (offsetParentRect.left - scrollLeft),
- bottom: root.document.documentElement.clientHeight - (offsetParentRect.top - scrollTop),
- left: 0 - (offsetParentRect.left - scrollLeft)
- };
- } else {
- if (getOffsetParent(this._popper) === boundariesElement) {
- boundaries = {
- top: 0,
- left: 0,
- right: boundariesElement.clientWidth,
- bottom: boundariesElement.clientHeight
- };
- } else {
- boundaries = getOffsetRect(boundariesElement);
- }
- }
- boundaries.left += padding;
- boundaries.right -= padding;
- boundaries.top = boundaries.top + padding;
- boundaries.bottom = boundaries.bottom - padding;
- return boundaries;
- };
-
-
- /**
- * Loop trough the list of modifiers and run them in order, each of them will then edit the data object
- * @method
- * @memberof Popper
- * @access public
- * @param {Object} data
- * @param {Array} modifiers
- * @param {Function} ends
- */
- Popper.prototype.runModifiers = function(data, modifiers, ends) {
- var modifiersToRun = modifiers.slice();
- if (ends !== undefined) {
- modifiersToRun = this._options.modifiers.slice(0, getArrayKeyIndex(this._options.modifiers, ends));
- }
-
- modifiersToRun.forEach(function(modifier) {
- if (isFunction(modifier)) {
- data = modifier.call(this, data);
- }
- }.bind(this));
-
- return data;
- };
+/*
+* @fileOverview Kickass library to create and place poppers near their reference elements.
+* @version 1.0.0-alpha.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';
+
+ /**
+ * The Object.assign() method is used to copy the values of all enumerable own properties from one or more source
+ * objects to a target object. It will return the target object.
+ * This polyfill doesn't support symbol properties, since ES5 doesn't have symbols anyway
+ * Source: https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
+ * @function
+ * @ignore
+ */
+ if (!Object.assign) {
+ Object.defineProperty(Object, 'assign', {
+ enumerable: false,
+ configurable: true,
+ writable: true,
+ value: function value(target) {
+ if (target === undefined || target === null) {
+ throw new TypeError('Cannot convert first argument to object');
+ }
+
+ var to = Object(target);
+ for (var i = 1; i < arguments.length; i++) {
+ var nextSource = arguments[i];
+ if (nextSource === undefined || nextSource === null) {
+ continue;
+ }
+ nextSource = Object(nextSource);
+
+ var keysArray = Object.keys(nextSource);
+ for (var nextIndex = 0, len = keysArray.length; nextIndex < len; nextIndex++) {
+ var nextKey = keysArray[nextIndex];
+ var desc = Object.getOwnPropertyDescriptor(nextSource, nextKey);
+ if (desc !== undefined && desc.enumerable) {
+ to[nextKey] = nextSource[nextKey];
+ }
+ }
+ }
+ return to;
+ }
+ });
+ }
+
+ /**
+ * Polyfill for requestAnimationFrame
+ * @function
+ * @ignore
+ */
+ if (!window.requestAnimationFrame) {
+ var lastTime = 0;
+ var vendors = ['ms', 'moz', 'webkit', 'o'];
+ for (var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
+ window.requestAnimationFrame = window[vendors[x] + 'RequestAnimationFrame'];
+ window.cancelAnimationFrame = window[vendors[x] + 'CancelAnimationFrame'] || window[vendors[x] + 'CancelRequestAnimationFrame'];
+ }
- /**
- * Helper used to know if the given modifier depends from another one.
- * @method
- * @memberof Popper
- * @returns {Boolean}
- */
-
- Popper.prototype.isModifierRequired = function(requesting, requested) {
- var index = getArrayKeyIndex(this._options.modifiers, requesting);
- return !!this._options.modifiers.slice(0, index).filter(function(modifier) {
- return modifier === requested;
- }).length;
- };
+ if (!window.requestAnimationFrame) {
+ window.requestAnimationFrame = function (callback) {
+ var currTime = new Date().getTime();
+ var timeToCall = Math.max(0, 16 - (currTime - lastTime));
+ var id = window.setTimeout(function () {
+ callback(currTime + timeToCall);
+ }, timeToCall);
+ lastTime = currTime + timeToCall;
+ return id;
+ };
+ }
- //
- // Modifiers
- //
-
- /**
- * Modifiers list
- * @namespace Popper.modifiers
- * @memberof Popper
- * @type {Object}
- */
- Popper.prototype.modifiers = {};
-
- /**
- * Apply the computed styles to the popper element
- * @method
- * @memberof Popper.modifiers
- * @argument {Object} data - The data object generated by `update` method
- * @returns {Object} The same data object
- */
- Popper.prototype.modifiers.applyStyle = function(data) {
- // apply the final offsets to the popper
- // NOTE: 1 DOM access here
- var styles = {
- position: data.offsets.popper.position
- };
-
- // round top and left to avoid blurry text
- var left = Math.round(data.offsets.popper.left);
- var top = Math.round(data.offsets.popper.top);
-
- // 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;
- if (this._options.gpuAcceleration && (prefixedProperty = getSupportedPropertyName('transform'))) {
- styles[prefixedProperty] = 'translate3d(' + left + 'px, ' + top + 'px, 0)';
- styles.top = 0;
- styles.left = 0;
- }
- // othwerise, we use the standard `left` and `top` properties
- else {
- styles.left =left;
- styles.top = top;
- }
-
- // 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!
- Object.assign(styles, data.styles);
-
- setStyle(this._popper, styles);
-
- // set an attribute which will be useful to style the tooltip (use it to properly position its arrow)
- // NOTE: 1 DOM access here
- this._popper.setAttribute('x-placement', data.placement);
-
- // if the arrow style has been computed, apply the arrow style
- if (data.offsets.arrow) {
- setStyle(data.arrowElement, data.offsets.arrow);
- }
-
- // return the data object to allow chaining of other modifiers
- return data;
- };
+ if (!window.cancelAnimationFrame) {
+ window.cancelAnimationFrame = function (id) {
+ clearTimeout(id);
+ };
+ }
+ }
+
+ /**
+ * 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 filter instead of find because find has less cross-browser support
+ var match = arr.filter(function (obj) {
+ return obj[prop] === value;
+ })[0];
+ return arr.indexOf(match);
+ }
+
+ /**
+ * Returns the offset parent of the given element
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Element} element
+ * @returns {Element} offset parent
+ */
+ function getOffsetParent(element) {
+ // NOTE: 1 DOM access here
+ var offsetParent = element.offsetParent;
+ return !offsetParent || offsetParent.nodeName === 'BODY' ? window.document.documentElement : offsetParent;
+ }
+
+ /**
+ * 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 = window.getComputedStyle(element, null);
+ return css[property];
+ }
+
+ /**
+ * Returns the parentNode or the host of the element
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Element} element
+ * @returns {Element} parent
+ */
+ function getParentNode(element) {
+ return element.parentNode || element.host;
+ }
+
+ /**
+ * Returns the scrolling parent of the given element
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Element} element
+ * @returns {Element} offset parent
+ */
+ function getScrollParent(element) {
+ if (element === window.document) {
+ // Firefox puts the scrollTOp value on `documentElement` instead of `body`, we then check which of them is
+ // greater than 0 and return the proper element
+ if (window.document.body.scrollTop) {
+ return window.document.body;
+ } else {
+ return window.document.documentElement;
+ }
+ }
- /**
- * Modifier used to shift the popper on the start or end of its reference element side
- * @method
- * @memberof Popper.modifiers
- * @argument {Object} data - The data object generated by `update` method
- * @returns {Object} The data object, properly modified
- */
- Popper.prototype.modifiers.shift = function(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 reference = data.offsets.reference;
- var popper = getPopperClientRect(data.offsets.popper);
-
- var shiftOffsets = {
- y: {
- start: { top: reference.top },
- end: { top: reference.top + reference.height - popper.height }
- },
- x: {
- start: { left: reference.left },
- end: { left: reference.left + reference.width - popper.width }
- }
- };
-
- var axis = ['bottom', 'top'].indexOf(basePlacement) !== -1 ? 'x' : 'y';
-
- data.offsets.popper = Object.assign(popper, shiftOffsets[axis][shiftVariation]);
- }
-
- return data;
- };
+ // Firefox want us to check `-x` and `-y` variations as well
+ if (['scroll', 'auto'].indexOf(getStyleComputedProperty(element, 'overflow')) !== -1 || ['scroll', 'auto'].indexOf(getStyleComputedProperty(element, 'overflow-x')) !== -1 || ['scroll', 'auto'].indexOf(getStyleComputedProperty(element, 'overflow-y')) !== -1) {
+ // If the detected scrollParent is body, we perform an additional check on its parentNode
+ // in this way we'll get body if the browser is Chrome-ish, or documentElement otherwise
+ // fixes issue #65
+ return element === window.document.body ? getScrollParent(getParentNode(element)) : element;
+ }
+ return getParentNode(element) ? getScrollParent(getParentNode(element)) : element;
+ }
+
+ /**
+ * 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 = {
+ width: element.offsetWidth,
+ height: element.offsetHeight,
+ left: element.offsetLeft,
+ top: element.offsetTop
+ };
+
+ elementRect.right = elementRect.left + elementRect.width;
+ elementRect.bottom = elementRect.top + elementRect.height;
+
+ // position
+ return elementRect;
+ }
+
+ /**
+ * Computed the boundaries limits and return them
+ * @method
+ * @memberof Popper.Utils
+ * @param {Object} data - Object containing the property "offsets" generated by `_getOffsets`
+ * @param {Number} padding - Boundaries padding
+ * @param {Element} boundariesElement - Element used to define the boundaries
+ * @returns {Object} Coordinates of the boundaries
+ */
+ function getBoundaries(popper, data, padding, boundariesElement) {
+ // NOTE: 1 DOM access here
+ var boundaries = {};
+ if (boundariesElement === 'window') {
+ var body = window.document.body;
+ var html = window.document.documentElement;
+ var height = Math.max(body.scrollHeight, body.offsetHeight, html.clientHeight, html.scrollHeight, html.offsetHeight);
+ var width = Math.max(body.scrollWidth, body.offsetWidth, html.clientWidth, html.scrollWidth, html.offsetWidth);
+
+ boundaries = {
+ top: 0,
+ right: width,
+ bottom: height,
+ left: 0
+ };
+ } else if (boundariesElement === 'viewport') {
+ var offsetParent = getOffsetParent(popper);
+ var scrollParent = getScrollParent(popper);
+ var offsetParentRect = getOffsetRect(offsetParent);
+
+ // if the popper is fixed we don't have to substract scrolling from the boundaries
+ var scrollTop = data.offsets.popper.position === 'fixed' ? 0 : scrollParent.scrollTop;
+ var scrollLeft = data.offsets.popper.position === 'fixed' ? 0 : scrollParent.scrollLeft;
+
+ boundaries = {
+ top: 0 - (offsetParentRect.top - scrollTop),
+ right: window.document.documentElement.clientWidth - (offsetParentRect.left - scrollLeft),
+ bottom: window.document.documentElement.clientHeight - (offsetParentRect.top - scrollTop),
+ left: 0 - (offsetParentRect.left - scrollLeft)
+ };
+ } else {
+ if (getOffsetParent(popper) === boundariesElement) {
+ boundaries = {
+ top: 0,
+ left: 0,
+ right: boundariesElement.clientWidth,
+ bottom: boundariesElement.clientHeight
+ };
+ } else {
+ boundaries = getOffsetRect(boundariesElement);
+ }
+ }
+ boundaries.left += padding;
+ boundaries.right -= padding;
+ boundaries.top = boundaries.top + padding;
+ boundaries.bottom = boundaries.bottom - padding;
+ return boundaries;
+ }
+
+ /**
+ * Get bounding client rect of given element
+ * @method
+ * @memberof Popper.Utils
+ * @param {HTMLElement} element
+ * @return {Object} client rect
+ */
+ function getBoundingClientRect(element) {
+ var rect = element.getBoundingClientRect();
+ return {
+ left: rect.left,
+ top: rect.top,
+ right: rect.right,
+ bottom: rect.bottom,
+ width: rect.right - rect.left,
+ height: rect.bottom - rect.top
+ };
+ }
+
+ /**
+ * Given an element and one of its parents, return the offset
+ * @method
+ * @memberof Popper.Utils
+ * @param {HTMLElement} element
+ * @param {HTMLElement} parent
+ * @return {Object} rect
+ */
+ function getOffsetRectRelativeToCustomParent(element, parent, fixed, transformed) {
+ var elementRect = getBoundingClientRect(element);
+ var parentRect = getBoundingClientRect(parent);
+
+ if (fixed && !transformed) {
+ var scrollParent = getScrollParent(parent);
+ parentRect.top += scrollParent.scrollTop;
+ parentRect.bottom += scrollParent.scrollTop;
+ parentRect.left += scrollParent.scrollLeft;
+ parentRect.right += scrollParent.scrollLeft;
+ }
+ var rect = {
+ top: elementRect.top - parentRect.top,
+ left: elementRect.left - parentRect.left,
+ bottom: elementRect.top - parentRect.top + elementRect.height,
+ right: elementRect.left - parentRect.left + elementRect.width,
+ width: elementRect.width,
+ height: elementRect.height
+ };
+ return rect;
+ }
+
+ /**
+ * 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) {
+ // NOTE: 1 DOM access here
+ var display = element.style.display;
+ var visibility = element.style.visibility;
+
+ element.style.display = 'block';
+ element.style.visibility = 'hidden';
+
+ // original method
+ var styles = window.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
+ };
+
+ // reset element styles
+ element.style.display = display;
+ element.style.visibility = visibility;
+
+ return result;
+ }
+
+ /**
+ * Given the popper offsets, generate an output similar to getBoundingClientRect
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Object} popperOffsets
+ * @returns {Object} ClientRect like output
+ */
+ function getPopperClientRect(popperOffsets) {
+ return Object.assign({}, popperOffsets, {
+ right: popperOffsets.left + popperOffsets.width,
+ bottom: popperOffsets.top + popperOffsets.height
+ });
+ }
+
+ /**
+ * 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) {
+ if (element === window.document.body) {
+ return false;
+ }
+ if (getStyleComputedProperty(element, 'position') === 'fixed') {
+ return true;
+ }
+ return getParentNode(element) ? isFixed(getParentNode(element)) : element;
+ }
+
+ /**
+ * Helper used to get the position which will be applied to the popper
+ * @method
+ * @memberof Popper.Utils
+ * @param config {HTMLElement} popper element
+ * @returns {HTMLElement} reference element
+ */
+ function getPosition(popper, reference) {
+ var container = getOffsetParent(reference);
+
+ // Decide if the popper will be fixed
+ // If the reference element is inside a fixed context, the popper will be fixed as well to allow them to scroll together
+ var isParentFixed = isFixed(container);
+ return isParentFixed ? 'fixed' : 'absolute';
+ }
+
+ /**
+ * Get the prefixed supported property name
+ * @method
+ * @memberof Popper.Utils
+ * @argument {String} property (camelCase)
+ * @returns {String} prefixed property (camelCase)
+ */
+ function getSupportedPropertyName(property) {
+ var prefixes = ['', 'ms', 'webkit', 'moz', 'o'];
+
+ for (var i = 0; i < prefixes.length; i++) {
+ var toCheck = prefixes[i] ? prefixes[i] + property.charAt(0).toUpperCase() + property.slice(1) : property;
+ if (typeof window.document.body.style[toCheck] !== 'undefined') {
+ return toCheck;
+ }
+ }
+ return null;
+ }
+
+ /**
+ * Check if the given variable is a function
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Element} element - Element 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 depends from another one.
+ * @method
+ * @memberof Popper.Utils
+ * @returns {Boolean}
+ */
+ function isModifierRequired(modifiers, requesting, requested) {
+ return !!modifiers.filter(function (modifier) {
+ if (modifier.name === requested) {
+ return true;
+ } else if (modifier.name === requesting) {
+ return false;
+ }
+ return false;
+ }).length;
+ }
+
+ /**
+ * 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);
+ }
+
+ /**
+ * Check if the given element has transforms applied to itself or a parent
+ * @method
+ * @memberof Popper.Utils
+ * @param {Element} element
+ * @return {Boolean} answer to "isTransformed?"
+ */
+ function isTransformed(element) {
+ if (element === window.document.body) {
+ return false;
+ }
+ if (getStyleComputedProperty(element, 'transform') !== 'none') {
+ return true;
+ }
+ return getParentNode(element) ? isTransformed(getParentNode(element)) : element;
+ }
+
+ /**
+ * 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 {Object} data
+ * @param {Array} modifiers
+ * @param {Function} ends
+ */
+ function runModifiers(modifiers, options, data, ends) {
+ var modifiersToRun = ends === undefined ? modifiers : modifiers.slice(0, findIndex(modifiers, 'name', ends));
+
+ modifiersToRun.forEach(function (modifier) {
+ if (modifier.enabled && isFunction(modifier.function)) {
+ data = modifier.function(data, modifier);
+ }
+ });
+
+ return data;
+ }
+
+ /**
+ * 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 setStyle(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;
+ });
+ }
+
+ /** @namespace Popper.Utils */
+ var Utils = {
+ findIndex: findIndex,
+ getBoundaries: getBoundaries,
+ getBoundingClientRect: getBoundingClientRect,
+ getOffsetParent: getOffsetParent,
+ getOffsetRectRelativeToCustomParent: getOffsetRectRelativeToCustomParent,
+ getOuterSizes: getOuterSizes,
+ getPopperClientRect: getPopperClientRect,
+ getPosition: getPosition,
+ getScrollParent: getScrollParent,
+ getStyleComputedProperty: getStyleComputedProperty,
+ getSupportedPropertyName: getSupportedPropertyName,
+ isFixed: isFixed,
+ isFunction: isFunction,
+ isModifierRequired: isModifierRequired,
+ isNumeric: isNumeric,
+ isTransformed: isTransformed,
+ runModifiers: runModifiers,
+ setStyle: setStyle
+ };
+
+ /**
+ * Get offsets to the popper
+ * @method
+ * @memberof Popper.Utils
+ * @param {Element} popper - the popper element
+ * @param {Element} reference - the reference element (the popper will be relative to this)
+ * @returns {Object} An object containing the offsets which will be applied to the popper
+ */
+ function getOffsets(state, popper, reference, placement) {
+ placement = placement.split('-')[0];
+
+ var popperOffsets = {};
+ popperOffsets.position = state.position;
+
+ var isParentFixed = popperOffsets.position === 'fixed';
+ var isParentTransformed = state.isParentTransformed;
+
+ //
+ // Get reference element position
+ //
+ var offsetParent = getOffsetParent(isParentFixed && isParentTransformed ? reference : popper);
+ var referenceOffsets = getOffsetRectRelativeToCustomParent(reference, offsetParent, isParentFixed, isParentTransformed);
+
+ //
+ // Get popper sizes
+ //
+ var popperRect = getOuterSizes(popper);
+
+ //
+ // Compute offsets of popper
+ //
+
+ // depending by the popper placement we have to compute its offsets slightly differently
+ if (['right', 'left'].indexOf(placement) !== -1) {
+ popperOffsets.top = referenceOffsets.top + referenceOffsets.height / 2 - popperRect.height / 2;
+ if (placement === 'left') {
+ popperOffsets.left = referenceOffsets.left - popperRect.width;
+ } else {
+ popperOffsets.left = referenceOffsets.right;
+ }
+ } else {
+ popperOffsets.left = referenceOffsets.left + referenceOffsets.width / 2 - popperRect.width / 2;
+ if (placement === 'top') {
+ popperOffsets.top = referenceOffsets.top - popperRect.height;
+ } else {
+ popperOffsets.top = referenceOffsets.bottom;
+ }
+ }
- /**
- * Modifier used to make sure the popper does not overflows from it's boundaries
- * @method
- * @memberof Popper.modifiers
- * @argument {Object} data - The data object generated by `update` method
- * @returns {Object} The data object, properly modified
- */
- Popper.prototype.modifiers.preventOverflow = function(data) {
- var order = this._options.preventOverflowOrder;
- var popper = getPopperClientRect(data.offsets.popper);
-
- var check = {
- left: function() {
- var left = popper.left;
- if (popper.left < data.boundaries.left) {
- left = Math.max(popper.left, data.boundaries.left);
- }
- return { left: left };
- },
- right: function() {
- var left = popper.left;
- if (popper.right > data.boundaries.right) {
- left = Math.min(popper.left, data.boundaries.right - popper.width);
- }
- return { left: left };
- },
- top: function() {
- var top = popper.top;
- if (popper.top < data.boundaries.top) {
- top = Math.max(popper.top, data.boundaries.top);
- }
- return { top: top };
- },
- bottom: function() {
- var top = popper.top;
- if (popper.bottom > data.boundaries.bottom) {
- top = Math.min(popper.top, data.boundaries.bottom - popper.height);
- }
- return { top: top };
- }
- };
-
- order.forEach(function(direction) {
- data.offsets.popper = Object.assign(popper, check[direction]());
- });
-
- return data;
- };
+ // Add width and height to our offsets object
+ popperOffsets.width = popperRect.width;
+ popperOffsets.height = popperRect.height;
+
+ return {
+ popper: popperOffsets,
+ reference: referenceOffsets
+ };
+ }
+
+ /**
+ * Setup needed event listeners used to update the popper position
+ * @method
+ * @memberof Popper.Utils
+ * @private
+ */
+ function setupEventListeners(reference, options, state, updateBound) {
+ // NOTE: 1 DOM access here
+ state.updateBound = updateBound;
+ window.addEventListener('resize', state.updateBound, { passive: true });
+ // if the boundariesElement is window we don't need to listen for the scroll event
+ if (options.boundariesElement !== 'window') {
+ var target = getScrollParent(reference);
+ // here it could be both `body` or `documentElement` thanks to Firefox, we then check both
+ if (target === window.document.body || target === window.document.documentElement) {
+ target = window;
+ }
+ target.addEventListener('scroll', state.updateBound, { passive: true });
+ }
+ }
+
+ /**
+ * Remove event listeners used to update the popper position
+ * @method
+ * @memberof Popper.Utils
+ * @private
+ */
+ function removeEventListeners(reference, state, options) {
+ // NOTE: 1 DOM access here
+ window.removeEventListener('resize', state.updateBound);
+ if (options.boundariesElement !== 'window') {
+ var target = getScrollParent(reference);
+ // here it could be both `body` or `documentElement` thanks to Firefox, we then check both
+ if (target === window.document.body || target === window.document.documentElement) {
+ target = window;
+ }
+ target.removeEventListener('scroll', state.updateBound);
+ }
+ state.updateBound = null;
+ return state;
+ }
+
+ /**
+ * Sorts the modifiers based on their `order` property
+ * @method
+ * @memberof Popper.Utils
+ */
+ function sortModifiers(a, b) {
+ if (a.order < b.order) {
+ return -1;
+ } else if (a.order > b.order) {
+ return 1;
+ }
+ return 0;
+ }
+
+ /**
+ * Apply the computed styles to the popper element
+ * @method
+ * @memberof Modifiers
+ * @argument {Object} data - The data object generated by `update` method
+ * @argument {Object} options - Modifiers configuration and options
+ * @returns {Object} The same data object
+ */
+ function applyStyle(data) {
+ // apply the final offsets to the popper
+ // NOTE: 1 DOM access here
+ var styles = {
+ position: data.offsets.popper.position
+ };
+
+ // round top and left to avoid blurry text
+ var left = Math.round(data.offsets.popper.left);
+ var top = Math.round(data.offsets.popper.top);
+
+ // 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');
+ if (data.instance.options.gpuAcceleration && prefixedProperty) {
+ styles[prefixedProperty] = 'translate3d(' + left + 'px, ' + top + 'px, 0)';
+ styles.top = 0;
+ styles.left = 0;
+ }
+ // othwerise, we use the standard `left` and `top` properties
+ else {
+ styles.left = left;
+ styles.top = top;
+ }
+
+ // 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!
+ Object.assign(styles, data.styles);
+
+ setStyle(data.instance.popper, styles);
+
+ // set an attribute which will be useful to style the tooltip (use it to properly position its arrow)
+ // NOTE: 1 DOM access here
+ data.instance.popper.setAttribute('x-placement', data.placement);
+
+ // if the arrow style has been computed, apply the arrow style
+ if (data.offsets.arrow) {
+ setStyle(data.arrowElement, data.offsets.arrow);
+ }
- /**
- * Modifier used to make sure the popper is always near its reference
- * @method
- * @memberof Popper.modifiers
- * @argument {Object} data - The data object generated by _update method
- * @returns {Object} The data object, properly modified
- */
- Popper.prototype.modifiers.keepTogether = function(data) {
- var popper = getPopperClientRect(data.offsets.popper);
- var reference = data.offsets.reference;
- var f = Math.floor;
-
- if (popper.right < f(reference.left)) {
- data.offsets.popper.left = f(reference.left) - popper.width;
- }
- if (popper.left > f(reference.right)) {
- data.offsets.popper.left = f(reference.right);
- }
- if (popper.bottom < f(reference.top)) {
- data.offsets.popper.top = f(reference.top) - popper.height;
- }
- if (popper.top > f(reference.bottom)) {
- data.offsets.popper.top = f(reference.bottom);
- }
-
- return data;
- };
+ 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) {
+ popper.setAttribute('x-placement', options.placement);
+ }
+
+ /**
+ * Modifier used to move the arrows on the edge of the popper to make sure them are always between the popper and the reference element
+ * It will use the CSS outer size of the arrow element to know how many pixels of conjuction are needed
+ * @method
+ * @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 arrow = options.element;
+
+ // if the arrowElement is a string, suppose it's a CSS selector
+ if (typeof arrow === 'string') {
+ arrow = data.instance.popper.querySelector(arrow);
+ }
- /**
- * Modifier used to flip the placement of the popper when the latter is starting overlapping its reference element.
- * Requires the `preventOverflow` modifier before it in order to work.
- * **NOTE:** This modifier will run all its previous modifiers everytime it tries to flip the popper!
- * @method
- * @memberof Popper.modifiers
- * @argument {Object} data - The data object generated by _update method
- * @returns {Object} The data object, properly modified
- */
- Popper.prototype.modifiers.flip = function(data) {
- // check if preventOverflow is in the list of modifiers before the flip modifier.
- // otherwise flip would not work as expected.
- if (!this.isModifierRequired(this.modifiers.flip, this.modifiers.preventOverflow)) {
- console.warn('WARNING: preventOverflow modifier is required by flip modifier in order to work, be sure to include it before flip!');
- 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 placement = data.placement.split('-')[0];
- var placementOpposite = getOppositePlacement(placement);
- var variation = data.placement.split('-')[1] || '';
-
- var flipOrder = [];
- if(this._options.flipBehavior === 'flip') {
- flipOrder = [
- placement,
- placementOpposite
- ];
- } else {
- flipOrder = this._options.flipBehavior;
- }
-
- flipOrder.forEach(function(step, index) {
- if (placement !== step || flipOrder.length === index + 1) {
- return;
- }
-
- placement = data.placement.split('-')[0];
- placementOpposite = getOppositePlacement(placement);
-
- var popperOffsets = getPopperClientRect(data.offsets.popper);
-
- // this boolean is used to distinguish right and bottom from top and left
- // they need different computations to get flipped
- var a = ['right', 'bottom'].indexOf(placement) !== -1;
-
- // using Math.floor because the reference offsets may contain decimals we are not going to consider here
- if (
- a && Math.floor(data.offsets.reference[placement]) > Math.floor(popperOffsets[placementOpposite]) ||
- !a && Math.floor(data.offsets.reference[placement]) < Math.floor(popperOffsets[placementOpposite])
- ) {
- // we'll use this boolean to detect any flip loop
- data.flipped = true;
- data.placement = flipOrder[index + 1];
- if (variation) {
- data.placement += '-' + variation;
- }
- data.offsets.popper = this._getOffsets(this._popper, this._reference, data.placement).popper;
-
- data = this.runModifiers(data, this._options.modifiers, this._flip);
- }
- }.bind(this));
- return data;
- };
+ // if arrow element is not found, don't run the modifier
+ if (!arrow) {
+ return data;
+ }
- /**
- * Modifier used to add an offset to the popper, useful if you more granularity positioning your popper.
- * The offsets will shift the popper on the side of its reference element.
- * @method
- * @memberof Popper.modifiers
- * @argument {Object} data - The data object generated by _update method
- * @returns {Object} The data object, properly modified
- */
- Popper.prototype.modifiers.offset = function(data) {
- var offset = this._options.offset;
- var popper = data.offsets.popper;
-
- if (data.placement.indexOf('left') !== -1) {
- popper.top -= offset;
- }
- else if (data.placement.indexOf('right') !== -1) {
- popper.top += offset;
- }
- else if (data.placement.indexOf('top') !== -1) {
- popper.left -= offset;
- }
- else if (data.placement.indexOf('bottom') !== -1) {
- popper.left += offset;
- }
- return data;
- };
+ // the arrow element must be child of its popper
+ if (!data.instance.popper.contains(arrow)) {
+ console.warn('WARNING: `arrowElement` must be child of its popper element!');
+ return data;
+ }
- /**
- * Modifier used to move the arrows on the edge of the popper to make sure them are always between the popper and the reference element
- * It will use the CSS outer size of the arrow element to know how many pixels of conjuction are needed
- * @method
- * @memberof Popper.modifiers
- * @argument {Object} data - The data object generated by _update method
- * @returns {Object} The data object, properly modified
- */
- Popper.prototype.modifiers.arrow = function(data) {
- var arrow = this._options.arrowElement;
-
- // if the arrowElement is a string, suppose it's a CSS selector
- if (typeof arrow === 'string') {
- arrow = this._popper.querySelector(arrow);
- }
-
- // if arrow element is not found, don't run the modifier
- if (!arrow) {
- return data;
- }
-
- // the arrow element must be child of its popper
- if (!this._popper.contains(arrow)) {
- console.warn('WARNING: `arrowElement` must be child of its popper element!');
- return data;
- }
-
- // arrow depends on keepTogether in order to work
- if (!this.isModifierRequired(this.modifiers.arrow, this.modifiers.keepTogether)) {
- console.warn('WARNING: keepTogether modifier is required by arrow modifier in order to work, be sure to include it before arrow!');
- return data;
- }
-
- var arrowStyle = {};
- var placement = data.placement.split('-')[0];
- var popper = getPopperClientRect(data.offsets.popper);
- var reference = data.offsets.reference;
- var isVertical = ['left', 'right'].indexOf(placement) !== -1;
-
- var len = isVertical ? 'height' : 'width';
- var side = isVertical ? 'top' : 'left';
- var altSide = isVertical ? 'left' : 'top';
- var opSide = isVertical ? 'bottom' : 'right';
- var arrowSize = getOuterSizes(arrow)[len];
-
- //
- // extends keepTogether behavior making sure the popper and its reference have enough pixels in conjuction
- //
-
- // top/left side
- if (reference[opSide] - arrowSize < popper[side]) {
- data.offsets.popper[side] -= popper[side] - (reference[opSide] - arrowSize);
- }
- // bottom/right side
- if (reference[side] + arrowSize > popper[opSide]) {
- data.offsets.popper[side] += (reference[side] + arrowSize) - popper[opSide];
- }
-
- // compute center of the popper
- var center = reference[side] + (reference[len] / 2) - (arrowSize / 2);
-
- // Compute the sideValue using the updated popper offsets
- var sideValue = center - getPopperClientRect(data.offsets.popper)[side];
-
- // prevent arrow from being placed not contiguously to its popper
- sideValue = Math.max(Math.min(popper[len] - arrowSize, sideValue), 0);
- arrowStyle[side] = sideValue;
- arrowStyle[altSide] = ''; // make sure to remove any old style from the arrow
-
- data.offsets.arrow = arrowStyle;
- data.arrowElement = arrow;
-
- return data;
- };
+ // arrow depends on keepTogether in order to work
+ if (!isModifierRequired(data.instance.modifiers, 'arrow', 'keepTogether')) {
+ console.warn('WARNING: keepTogether modifier is required by arrow modifier in order to work, be sure to include it before arrow!');
+ return data;
+ }
+ var arrowStyle = {};
+ var placement = data.placement.split('-')[0];
+ var popper = getPopperClientRect(data.offsets.popper);
+ var reference = data.offsets.reference;
+ var isVertical = ['left', 'right'].indexOf(placement) !== -1;
+
+ var len = isVertical ? 'height' : 'width';
+ var side = isVertical ? 'top' : 'left';
+ var altSide = isVertical ? 'left' : 'top';
+ var opSide = isVertical ? 'bottom' : 'right';
+ var arrowSize = getOuterSizes(arrow)[len];
+
+ //
+ // extends keepTogether behavior making sure the popper and its reference have enough pixels in conjuction
+ //
+
+ // top/left side
+ if (reference[opSide] - arrowSize < popper[side]) {
+ data.offsets.popper[side] -= popper[side] - (reference[opSide] - arrowSize);
+ }
+ // bottom/right side
+ if (reference[side] + arrowSize > popper[opSide]) {
+ data.offsets.popper[side] += reference[side] + arrowSize - popper[opSide];
+ }
- //
- // Helpers
- //
-
- /**
- * Get the outer sizes of the given element (offset size + margins)
- * @function
- * @ignore
- * @argument {Element} element
- * @returns {Object} object containing width and height properties
- */
- function getOuterSizes(element) {
- // NOTE: 1 DOM access here
- var _display = element.style.display, _visibility = element.style.visibility;
- element.style.display = 'block'; element.style.visibility = 'hidden';
- var calcWidthToForceRepaint = element.offsetWidth;
-
- // original method
- var styles = root.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 };
-
- // reset element styles
- element.style.display = _display; element.style.visibility = _visibility;
- return result;
- }
+ // compute center of the popper
+ var center = reference[side] + reference[len] / 2 - arrowSize / 2;
+
+ // Compute the sideValue using the updated popper offsets
+ var sideValue = center - getPopperClientRect(data.offsets.popper)[side];
+
+ // prevent arrow from being placed not contiguously to its popper
+ sideValue = Math.max(Math.min(popper[len] - arrowSize, sideValue), 0);
+ arrowStyle[side] = sideValue;
+ arrowStyle[altSide] = ''; // make sure to remove any old style from the arrow
+
+ data.offsets.arrow = arrowStyle;
+ data.arrowElement = arrow;
+
+ return data;
+ }
+
+ /**
+ * 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 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;
+ }
+
+ /**
+ * Modifier used to flip the placement of the popper when the latter is starting overlapping its reference element.
+ * Requires the `preventOverflow` modifier before it in order to work.
+ * **NOTE:** data.instance modifier will run all its previous modifiers everytime it tries to flip the popper!
+ * @method
+ * @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) {
+ // check if preventOverflow is in the list of modifiers before the flip modifier.
+ // otherwise flip would not work as expected.
+ if (!isModifierRequired(data.instance.modifiers, 'flip', 'preventOverflow')) {
+ console.warn('WARNING: preventOverflow modifier is required by flip modifier in order to work, be sure to include it before flip!');
+ return data;
+ }
- /**
- * Get the opposite placement of the given one/
- * @function
- * @ignore
- * @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];
- });
- }
+ 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;
+ }
- /**
- * Given the popper offsets, generate an output similar to getBoundingClientRect
- * @function
- * @ignore
- * @argument {Object} popperOffsets
- * @returns {Object} ClientRect like output
- */
- function getPopperClientRect(popperOffsets) {
- var offsets = Object.assign({}, popperOffsets);
- offsets.right = offsets.left + offsets.width;
- offsets.bottom = offsets.top + offsets.height;
- return offsets;
- }
+ var placement = data.placement.split('-')[0];
+ var placementOpposite = getOppositePlacement(placement);
+ var variation = data.placement.split('-')[1] || '';
- /**
- * Given an array and the key to find, returns its index
- * @function
- * @ignore
- * @argument {Array} arr
- * @argument keyToFind
- * @returns index or null
- */
- function getArrayKeyIndex(arr, keyToFind) {
- var i = 0, key;
- for (key in arr) {
- if (arr[key] === keyToFind) {
- return i;
- }
- i++;
- }
- return null;
- }
+ var flipOrder = [];
- /**
- * Get CSS computed property of the given element
- * @function
- * @ignore
- * @argument {Eement} element
- * @argument {String} property
- */
- function getStyleComputedProperty(element, property) {
- // NOTE: 1 DOM access here
- var css = root.getComputedStyle(element, null);
- return css[property];
- }
+ if (options.behavior === 'flip') {
+ flipOrder = [placement, placementOpposite];
+ } else {
+ flipOrder = options.behavior;
+ }
- /**
- * Returns the offset parent of the given element
- * @function
- * @ignore
- * @argument {Element} element
- * @returns {Element} offset parent
- */
- function getOffsetParent(element) {
- // NOTE: 1 DOM access here
- var offsetParent = element.offsetParent;
- return offsetParent === root.document.body || !offsetParent ? root.document.documentElement : offsetParent;
- }
+ flipOrder.forEach(function (step, index) {
+ if (placement !== step || flipOrder.length === index + 1) {
+ return data;
+ }
+
+ placement = data.placement.split('-')[0];
+ placementOpposite = getOppositePlacement(placement);
+
+ var popperOffsets = getPopperClientRect(data.offsets.popper);
+
+ // this boolean is used to distinguish right and bottom from top and left
+ // they need different computations to get flipped
+ var a = ['right', 'bottom'].indexOf(placement) !== -1;
+ var b = ['top', 'bottom'].indexOf(placement) !== -1;
+
+ // using Math.floor because the reference offsets may contain decimals we are not going to consider here
+ var flippedPosition = a && Math.floor(data.offsets.reference[placement]) > Math.floor(popperOffsets[placementOpposite]) || !a && Math.floor(data.offsets.reference[placement]) < Math.floor(popperOffsets[placementOpposite]);
+
+ var flippedVariation = options.flipVariations && (b && variation === 'start' && Math.floor(popperOffsets.left) < Math.floor(data.boundaries.left) || b && variation === 'end' && Math.floor(popperOffsets.right) > Math.floor(data.boundaries.right) || !b && variation === 'start' && Math.floor(popperOffsets.top) < Math.floor(data.boundaries.top) || !b && variation === 'end' && Math.floor(popperOffsets.bottom) > Math.floor(data.boundaries.bottom));
+
+ if (flippedPosition || flippedVariation) {
+ // this boolean to detect any flip loop
+ data.flipped = true;
+
+ if (flippedPosition) {
+ placement = flipOrder[index + 1];
+ }
+ if (flippedVariation) {
+ variation = getOppositeVariation(variation);
+ }
+
+ data.placement = placement + (variation ? '-' + variation : '');
+ data.offsets.popper = getOffsets(data.instance.state, data.instance.popper, data.instance.reference, data.placement).popper;
+
+ data = runModifiers(data.instance.modifiers, data.instance.options, data, 'flip');
+ }
+ });
+ return data;
+ }
+
+ /**
+ * Modifier used to make sure the popper is always near its reference element
+ * It cares only about the first axis, you can still have poppers with margin
+ * between the popper and its reference element.
+ * @method
+ * @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 popper = getPopperClientRect(data.offsets.popper);
+ var reference = data.offsets.reference;
+ var f = Math.floor;
+ var placement = data.placement.split('-')[0];
+
+ if (['top', 'bottom'].indexOf(placement) !== -1) {
+ if (popper.right < f(reference.left)) {
+ data.offsets.popper.left = f(reference.left) - popper.width;
+ }
+ if (popper.left > f(reference.right)) {
+ data.offsets.popper.left = f(reference.right);
+ }
+ } else {
+ if (popper.bottom < f(reference.top)) {
+ data.offsets.popper.top = f(reference.top) - popper.height;
+ }
+ if (popper.top > f(reference.bottom)) {
+ data.offsets.popper.top = f(reference.bottom);
+ }
+ }
- /**
- * Returns the scrolling parent of the given element
- * @function
- * @ignore
- * @argument {Element} element
- * @returns {Element} offset parent
- */
- function getScrollParent(element) {
- if (element === root.document) {
- // Firefox puts the scrollTOp value on `documentElement` instead of `body`, we then check which of them is
- // greater than 0 and return the proper element
- if (root.document.body.scrollTop) {
- return root.document.body;
- } else {
- return root.document.documentElement;
- }
- }
-
- // Firefox want us to check `-x` and `-y` variations as well
- if (
- ['scroll', 'auto'].indexOf(getStyleComputedProperty(element, 'overflow')) !== -1 ||
- ['scroll', 'auto'].indexOf(getStyleComputedProperty(element, 'overflow-x')) !== -1 ||
- ['scroll', 'auto'].indexOf(getStyleComputedProperty(element, 'overflow-y')) !== -1
- ) {
- // If the detected scrollParent is body, we perform an additional check on its parentNode
- // in this way we'll get body if the browser is Chrome-ish, or documentElement otherwise
- // fixes issue #65
- return element === root.document.body ? getScrollParent(element.parentNode) : element;
- }
- return element.parentNode ? getScrollParent(element.parentNode) : element;
- }
+ return data;
+ }
+
+ /**
+ * Modifier used to add an offset to the popper, useful if you more granularity positioning your popper.
+ * The offsets will shift the popper on the side of its reference element.
+ * @method
+ * @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
+ * Basic usage allows a number used to nudge the popper by the given amount of pixels.
+ * You can pass a percentage value as string (eg. `20%`) to nudge by the given percentage (relative to reference element size)
+ * Other supported units are `vh` and `vw` (relative to viewport)
+ * Additionally, you can pass a pair of values (eg. `10 20` or `2vh 20%`) to nudge the popper
+ * on both axis.
+ * A note about percentage values, if you want to refer a percentage to the popper size instead of the reference element size,
+ * use `%p` instead of `%` (eg: `20%p`). To make it clearer, you can replace `%` with `%r` and use eg.`10%p 25%r`.
+ * > **Heads up!** The order of the axis is relative to the popper placement: `bottom` or `top` are `X,Y`, the other are `Y,X`
+ * @returns {Object} The data object, properly modified
+ */
+ function offset(data, options) {
+ var placement = data.placement;
+ var popper = data.offsets.popper;
+
+ var offsets = void 0;
+ if (isNumeric(options.offset)) {
+ offsets = [options.offset, 0];
+ } else {
+ // split the offset in case we are providing a pair of offsets separated
+ // by a blank space
+ offsets = options.offset.split(' ');
+
+ // itherate through each offset to compute them in case they are percentages
+ offsets = offsets.map(function (offset, index) {
+ // separate value from unit
+ var split = offset.match(/(\d*\.?\d*)(.*)/);
+ var value = +split[1];
+ var unit = split[2];
+
+ // use height if placement is left or right and index is 0
+ // otherwise use height
+ // in this way the first offset will use an axis and the second one
+ // will use the other one
+ var useHeight = placement.indexOf('right') !== -1 || placement.indexOf('left') !== -1;
+
+ if (index === 1) {
+ useHeight = !useHeight;
+ }
+
+ // if is a percentage, we calculate the value of it using as base the
+ // sizes of the reference element
+ if (unit === '%' || unit === '%r') {
+ var referenceRect = getPopperClientRect(data.offsets.reference);
+ var len = void 0;
+ if (useHeight) {
+ len = referenceRect.height;
+ } else {
+ len = referenceRect.width;
+ }
+ return len / 100 * value;
+ }
+ // if is a percentage relative to the popper, we calculate the value of it using
+ // as base the sizes of the popper
+ else if (unit === '%p') {
+ var popperRect = getPopperClientRect(data.offsets.popper);
+ var _len = void 0;
+ if (useHeight) {
+ _len = popperRect.height;
+ } else {
+ _len = popperRect.width;
+ }
+ return _len / 100 * value;
+ }
+ // if is a vh or vw, we calculate the size based on the viewport
+ else if (unit === 'vh' || unit === 'vw') {
+ 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;
+ }
+ // if is an explicit pixel unit, we get rid of the unit and keep the value
+ else if (unit === 'px') {
+ return +value;
+ }
+ // if is an implicit unit, it's px, and we return just the value
+ else {
+ return +offset;
+ }
+ });
+ }
- /**
- * Check if the given element is fixed or is inside a fixed parent
- * @function
- * @ignore
- * @argument {Element} element
- * @argument {Element} customContainer
- * @returns {Boolean} answer to "isFixed?"
- */
- function isFixed(element) {
- if (element === root.document.body || element.nodeName === 'HTML') {
- return false;
- }
- if (getStyleComputedProperty(element, 'position') === 'fixed') {
- return true;
- }
- return element.parentNode ? isFixed(element.parentNode) : element;
- }
+ if (data.placement.indexOf('left') !== -1) {
+ popper.top += offsets[0];
+ popper.left -= offsets[1] || 0;
+ } else if (data.placement.indexOf('right') !== -1) {
+ popper.top += offsets[0];
+ popper.left += offsets[1] || 0;
+ } else if (data.placement.indexOf('top') !== -1) {
+ popper.left += offsets[0];
+ popper.top -= offsets[1] || 0;
+ } else if (data.placement.indexOf('bottom') !== -1) {
+ popper.left += offsets[0];
+ popper.top += offsets[1] || 0;
+ }
+ return data;
+ }
+
+ /**
+ * Modifier used to make sure the popper does not overflows from it's boundaries
+ * @method
+ * @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) {
+ function shouldMoveWithTarget(direction) {
+ if (!options.moveWithTarget) {
+ return false;
+ }
+ var placement = data.originalPlacement.split('-')[0];
+
+ if (data.flipped && placement === direction || placement === getOppositePlacement(direction)) {
+ return true;
+ }
+ if (placement !== direction && placement !== getOppositePlacement(direction)) {
+ return true;
+ }
- /**
- * Check if the given element has transforms applied to itself or a parent
- * @param {Element} element
- * @return {Boolean} answer to "isTransformed?"
- */
- function isTransformed(element) {
- if (element === root.document.body) {
return false;
}
- if (getStyleComputedProperty(element, 'transform') !== 'none') {
- return true;
+ var order = options.priority;
+ var popper = getPopperClientRect(data.offsets.popper);
+
+ var check = {
+ left: function left() {
+ var left = popper.left;
+ if (popper.left < data.boundaries.left && !shouldMoveWithTarget('left')) {
+ left = Math.max(popper.left, data.boundaries.left);
+ }
+ return { left: left };
+ },
+ right: function right() {
+ var left = popper.left;
+ if (popper.right > data.boundaries.right && !shouldMoveWithTarget('right')) {
+ left = Math.min(popper.left, data.boundaries.right - popper.width);
+ }
+ return { left: left };
+ },
+ top: function top() {
+ var top = popper.top;
+ if (popper.top < data.boundaries.top && !shouldMoveWithTarget('top')) {
+ top = Math.max(popper.top, data.boundaries.top);
+ }
+ return { top: top };
+ },
+ bottom: function bottom() {
+ var top = popper.top;
+ if (popper.bottom > data.boundaries.bottom && !shouldMoveWithTarget('bottom')) {
+ top = Math.min(popper.top, data.boundaries.bottom - popper.height);
+ }
+ return { top: top };
+ }
+ };
+
+ order.forEach(function (direction) {
+ data.offsets.popper = Object.assign(popper, check[direction]());
+ });
+
+ return data;
+ }
+
+ /**
+ * Modifier used to shift the popper on the start or end of its reference element side
+ * @method
+ * @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 reference = data.offsets.reference;
+ var popper = getPopperClientRect(data.offsets.popper);
+
+ var shiftOffsets = {
+ y: {
+ start: { top: reference.top },
+ end: { top: reference.top + reference.height - popper.height }
+ },
+ x: {
+ start: { left: reference.left },
+ end: { left: reference.left + reference.width - popper.width }
+ }
+ };
+
+ var axis = ['bottom', 'top'].indexOf(basePlacement) !== -1 ? 'x' : 'y';
+
+ data.offsets.popper = Object.assign(popper, shiftOffsets[axis][shiftvariation]);
}
- return element.parentNode ? isTransformed(element.parentNode) : element;
- }
-
- /**
- * Set the style to the given popper
- * @function
- * @ignore
- * @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 setStyle(element, styles) {
- function is_numeric(n) {
- return (n !== '' && !isNaN(parseFloat(n)) && isFinite(n));
- }
- 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 && is_numeric(styles[prop])) {
- unit = 'px';
- }
- element.style[prop] = styles[prop] + unit;
- });
- }
- /**
- * Check if the given variable is a function
- * @function
- * @ignore
- * @argument {Element} element - Element to check
- * @returns {Boolean} answer to: is a function?
- */
- function isFunction(functionToCheck) {
- var getType = {};
- return functionToCheck && getType.toString.call(functionToCheck) === '[object Function]';
- }
-
- /**
- * Get the position of the given element, relative to its offset parent
- * @function
- * @ignore
- * @param {Element} element
- * @return {Object} position - Coordinates of the element and its `scrollTop`
- */
- function getOffsetRect(element) {
- var elementRect = {
- width: element.offsetWidth,
- height: element.offsetHeight,
- left: element.offsetLeft,
- top: element.offsetTop
- };
-
- elementRect.right = elementRect.left + elementRect.width;
- elementRect.bottom = elementRect.top + elementRect.height;
-
- // position
- return elementRect;
- }
-
- /**
- * Get bounding client rect of given element
- * @function
- * @ignore
- * @param {HTMLElement} element
- * @return {Object} client rect
- */
- function getBoundingClientRect(element) {
- var rect = element.getBoundingClientRect();
- return {
- left: rect.left,
- top: rect.top,
- right: rect.right,
- bottom: rect.bottom,
- width: rect.right - rect.left,
- height: rect.bottom - rect.top
- };
- }
-
- /**
- * Given an element and one of its parents, return the offset
- * @function
- * @ignore
- * @param {HTMLElement} element
- * @param {HTMLElement} parent
- * @return {Object} rect
- */
- function getOffsetRectRelativeToCustomParent(element, parent, fixed, transformed) {
- var elementRect = getBoundingClientRect(element);
- var parentRect = getBoundingClientRect(parent);
-
- if (fixed && !transformed) {
- var scrollParent = getScrollParent(parent);
- parentRect.top += scrollParent.scrollTop;
- parentRect.bottom += scrollParent.scrollTop;
- parentRect.left += scrollParent.scrollLeft;
- parentRect.right += scrollParent.scrollLeft;
- }
-
- var rect = {
- top: elementRect.top - parentRect.top ,
- left: elementRect.left - parentRect.left ,
- bottom: (elementRect.top - parentRect.top) + elementRect.height,
- right: (elementRect.left - parentRect.left) + elementRect.width,
- width: elementRect.width,
- height: elementRect.height
- };
- return rect;
- }
+ return data;
+ }
+
+ /**
+ * Modifier used to hide the popper when its reference element is outside of the
+ * popper boundaries. It will set an x-hidden attribute which can be used to hide
+ * the popper when its reference is out of boundaries.
+ * @method
+ * @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) {
+ var refRect = data.offsets.reference;
+ var bound = data.boundaries;
+
+ if (refRect.bottom < bound.top || refRect.left > bound.right || refRect.top > bound.bottom || refRect.right < bound.left) {
+ data.hide = true;
+ data.instance.popper.setAttribute('x-out-of-boundaries', '');
+ } else {
+ data.hide = false;
+ data.instance.popper.removeAttribute('x-out-of-boundaries');
+ }
- /**
- * Get the prefixed supported property name
- * @function
- * @ignore
- * @argument {String} property (camelCase)
- * @returns {String} prefixed property (camelCase)
- */
- function getSupportedPropertyName(property) {
- var prefixes = ['', 'ms', 'webkit', 'moz', 'o'];
-
- for (var i = 0; i < prefixes.length; i++) {
- var toCheck = prefixes[i] ? prefixes[i] + property.charAt(0).toUpperCase() + property.slice(1) : property;
- if (typeof root.document.body.style[toCheck] !== 'undefined') {
- return toCheck;
- }
- }
- return null;
+ return data;
+ }
+
+ /**
+ * Modifiers are plugins used to alter the behavior of your poppers.
+ * Popper.js uses a set of 7 modifiers to provide all the basic functionalities
+ * needed by the library.
+ *
+ * Each modifier is an object containing several properties listed below.
+ * @namespace Modifiers
+ * @param {Object} modifier - Modifier descriptor
+ * @param {Integer} modifier.order
+ * The `order` property defines the execution order of the modifiers.
+ * The built-in modifiers have orders with a gap of 100 units in between,
+ * this allows you to inject additional modifiers between the existing ones
+ * without having to redefine the order of all of them.
+ * The modifiers are executed starting from the one with the lowest order.
+ * @param {Boolean} modifier.enabled - When `true`, the modifier will be used.
+ * @param {Modifiers~modifier} modifier.function - Modifier function.
+ * @param {Modifiers~onLoad} modifier.onLoad - Function executed on popper initalization
+ * @return {Object} data - Each modifier must return the modified `data` object.
+ */
+
+ var modifiersFunctions = {
+ applyStyle: applyStyle,
+ arrow: arrow,
+ flip: flip,
+ keepTogether: keepTogether,
+ offset: offset,
+ preventOverflow: preventOverflow,
+ shift: shift,
+ hide: hide
+ };
+
+ var modifiersOnLoad = {
+ applyStyleOnLoad: applyStyleOnLoad
+ };
+
+ /**
+ * Modifiers can edit the `data` object to change the beheavior of the popper.
+ * This object contains all the informations used by Popper.js to compute the
+ * popper position.
+ * The modifier can edit the data as needed, and then `return` it as result.
+ *
+ * @callback Modifiers~modifier
+ * @param {dataObject} data
+ * @return {dataObject} modified data
+ */
+
+ /**
+ * 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.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.arro] `top` and `left` offsets, only one of them will be different from 0
+ */
+
+ var classCallCheck = function (instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
}
-
- /**
- * The Object.assign() method is used to copy the values of all enumerable own properties from one or more source
- * objects to a target object. It will return the target object.
- * This polyfill doesn't support symbol properties, since ES5 doesn't have symbols anyway
- * Source: https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
- * @function
- * @ignore
- */
- if (!Object.assign) {
- Object.defineProperty(Object, 'assign', {
- enumerable: false,
- configurable: true,
- writable: true,
- value: function(target) {
- if (target === undefined || target === null) {
- throw new TypeError('Cannot convert first argument to object');
- }
-
- var to = Object(target);
- for (var i = 1; i < arguments.length; i++) {
- var nextSource = arguments[i];
- if (nextSource === undefined || nextSource === null) {
- continue;
- }
- nextSource = Object(nextSource);
-
- var keysArray = Object.keys(nextSource);
- for (var nextIndex = 0, len = keysArray.length; nextIndex < len; nextIndex++) {
- var nextKey = keysArray[nextIndex];
- var desc = Object.getOwnPropertyDescriptor(nextSource, nextKey);
- if (desc !== undefined && desc.enumerable) {
- to[nextKey] = nextSource[nextKey];
- }
- }
- }
- return to;
- }
- });
+ };
+
+ 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);
+ }
}
- if (!root.requestAnimationFrame) {
- var lastTime = 0;
- var vendors = ['ms', 'moz', 'webkit', 'o'];
- for(var x = 0; x < vendors.length && !root.requestAnimationFrame; ++x) {
- root.requestAnimationFrame = root[vendors[x]+'RequestAnimationFrame'];
- root.cancelAnimationFrame = root[vendors[x]+'CancelAnimationFrame'] || root[vendors[x]+'CancelRequestAnimationFrame'];
- }
-
- if (!root.requestAnimationFrame) {
- root.requestAnimationFrame = function(callback, element) {
- var currTime = new Date().getTime();
- var timeToCall = Math.max(0, 16 - (currTime - lastTime));
- var id = root.setTimeout(function() { callback(currTime + timeToCall); },
- timeToCall);
- lastTime = currTime + timeToCall;
- return id;
- };
- }
-
- if (!root.cancelAnimationFrame) {
- root.cancelAnimationFrame = function(id) {
- clearTimeout(id);
- };
- }
- }
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+
+ // default options
+ var DEFAULTS = {
+ // placement of the popper
+ placement: 'bottom',
+
+ // if true, it uses the CSS 3d transformation to position the popper
+ gpuAcceleration: true,
+
+ // the element which will act as boundary of the popper
+ boundariesElement: 'viewport',
+
+ // amount of pixel used to define a minimum distance between the boundaries and the popper
+ boundariesPadding: 5,
+
+ // list of functions used to modify the offsets before they are applied to the popper
+ modifiers: {
+ shift: {
+ order: 100,
+ enabled: true,
+ function: modifiersFunctions.shift
+ },
+ offset: {
+ order: 200,
+ enabled: true,
+ function: modifiersFunctions.offset,
+ // nudges popper from its origin by the given amount of pixels (can be negative)
+ offset: 0
+ },
+ preventOverflow: {
+ order: 300,
+ enabled: true,
+ function: modifiersFunctions.preventOverflow,
+ // 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']
+ },
+ keepTogether: {
+ order: 400,
+ enabled: true,
+ function: modifiersFunctions.keepTogether
+ },
+ arrow: {
+ order: 500,
+ enabled: true,
+ function: modifiersFunctions.arrow,
+ // selector or node used as arrow
+ element: '[x-arrow]'
+ },
+ flip: {
+ order: 600,
+ enabled: true,
+ function: modifiersFunctions.flip,
+ // the behavior used to change the popper's placement
+ behavior: 'flip'
+ },
+ hide: {
+ order: 700,
+ enabled: true,
+ function: modifiersFunctions.hide
+ },
+ applyStyle: {
+ order: 800,
+ enabled: true,
+ function: modifiersFunctions.applyStyle,
+ onLoad: modifiersOnLoad.applyStyleOnLoad
+ }
+ }
+ };
+
+ /**
+ * Create a new Popper.js instance
+ * @class Popper
+ * @param {HTMLElement} reference - The reference element used to position the popper
+ * @param {HTMLElement} popper - The HTML element used as popper.
+ * @param {Object} options
+ * @param {String} options.placement=bottom
+ * Placement of the popper accepted values: `top(-start, -end), right(-start, -end), bottom(-start, -right),
+ * left(-start, -end)`
+ *
+ * @param {Boolean} options.gpuAcceleration=true
+ * When this property is set to true, the popper position will be applied using CSS3 translate3d, allowing the
+ * browser to use the GPU to accelerate the rendering.
+ * If set to false, the popper will be placed using `top` and `left` properties, not using the GPU.
+ *
+ * @param {String|Element} options.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)
+ *
+ * @param {Number} options.boundariesPadding=5
+ * Additional padding for the boundaries
+ *
+ * @param {Boolean} options.removeOnDestroy=false
+ * Set to true if you want to automatically remove the popper when you call the `destroy` method.
+ *
+ * @param {Object} options.modifiers
+ * List of functions used to modify the data before they are applied to the popper (see source code for default values)
+ *
+ * @param {Object} options.modifiers.arrow - Arrow modifier configuration
+ * @param {HTMLElement|String} options.modifiers.arrow.element='[x-arrow]'
+ * The DOM Node used as arrow for the popper, or a CSS selector used to get the DOM node. It must be child of
+ * its parent Popper. Popper.js will apply to the given element the style required to align the arrow with its
+ * reference element.
+ * By default, it will look for a child node of the popper with the `x-arrow` attribute.
+ *
+ * @param {Object} options.modifiers.offset - Offset modifier configuration
+ * @param {Number} options.modifiers.offset.offset=0
+ * Amount of pixels the popper will be shifted (can be negative).
+ *
+ * @param {Object} options.modifiers.preventOverflow - PreventOverflow modifier configuration
+ * @param {Array} [options.modifiers.preventOverflow.priority=['left', 'right', 'top', 'bottom']]
+ * Priority used when Popper.js tries to avoid overflows from the boundaries, they will be checked in order,
+ * this means that the last one will never overflow
+ *
+ * @param {Object} options.modifiers.flip - Flip modifier configuration
+ * @param {String|Array} options.modifiers.flip.behavior='flip'
+ * The behavior used by the `flip` modifier to change the placement of the popper when the latter is trying to
+ * overlap its reference element. Defining `flip` as value, the placement will be flipped on
+ * its axis (`right - left`, `top - bottom`).
+ * You can even pass an array of placements (eg: `['right', 'left', 'top']` ) to manually specify
+ * how alter the placement when a flip is needed. (eg. in the above example, it would first flip from right to left,
+ * then, if even in its new placement, the popper is overlapping its reference element, it will be moved to top)
+ *
+ * @return {Object} instance - The generated Popper.js instance
+ */
+
+ var Popper = function () {
+ function Popper(reference, popper) {
+ var _this = this;
+
+ var options = arguments.length <= 2 || arguments[2] === undefined ? {} : arguments[2];
+ classCallCheck(this, Popper);
+ this.Defaults = DEFAULTS;
+
+ // init state
+ this.state = {
+ isDestroyed: false
+ };
+
+ // get reference and popper elements (allow jQuery wrappers)
+ this.reference = reference.jquery ? reference[0] : reference;
+ this.popper = popper.jquery ? popper[0] : popper;
+
+ // with {} we create a new object with the options inside it
+ this.options = Object.assign({}, DEFAULTS, options);
+
+ // refactoring modifiers' list (Object => Array)
+ this.modifiers = Object.keys(DEFAULTS.modifiers).map(function (name) {
+ return Object.assign({ name: name }, DEFAULTS.modifiers[name]);
+ });
+
+ // assign default values to modifiers, making sure to override them with
+ // the ones defined by user
+ this.modifiers = this.modifiers.map(function (defaultConfig) {
+ var userConfig = options.modifiers && options.modifiers[defaultConfig.name] || {};
+ var finalConfig = Object.assign({}, defaultConfig, userConfig);
+ return finalConfig;
+ });
+
+ // add custom modifiers to the modifiers list
+ if (options.modifiers) {
+ Object.keys(options.modifiers).forEach(function (name) {
+ // take in account only custom modifiers
+ if (DEFAULTS.modifiers[name] === undefined) {
+ var modifier = options.modifiers[name];
+ modifier.name = name;
+ _this.modifiers.push(modifier);
+ }
+ });
+ }
+
+ // sort the modifiers by order
+ this.modifiers = this.modifiers.sort(sortModifiers);
+
+ // modifiers have the ability to execute arbitrary code when Popper.js get inited
+ // such code is executed in the same order of its modifier
+ this.modifiers.forEach(function (modifier) {
+ if (modifier.enabled && isFunction(modifier.onLoad)) {
+ modifier.onLoad(_this.reference, _this.popper, _this.options);
+ }
+ });
+
+ // get the popper position type
+ this.state.position = getPosition(this.popper, this.reference);
+
+ // determine how we should set the origin of offsets
+ this.state.isParentTransformed = isTransformed(this.popper.parentNode);
+
+ // fire the first update to position the popper in the right place
+ this.update(true);
+
+ // setup event listeners, they will take care of update the position in specific situations
+ setupEventListeners(this.reference, this.options, this.state, function () {
+ return _this.update();
+ });
+
+ // make it chainable
+ return this;
+ }
- return Popper;
-}));
+ //
+ // Methods
+ //
+
+ /**
+ * Updates the position of the popper, computing the new offsets and applying the new style
+ * @method
+ * @param {Boolean} isFirstCall
+ * When true, the onCreate callback is called, otherwise it calls the onUpdate callback
+ * @memberof Popper
+ */
+
+
+ createClass(Popper, [{
+ key: 'update',
+ value: function update(isFirstCall) {
+ var _this2 = this;
+
+ var data = { instance: this, styles: {} };
+
+ // make sure to apply the popper position before any computation
+ this.state.position = getPosition(this.popper, this.reference);
+ setStyle(this.popper, { position: this.state.position });
+
+ // to avoid useless computations we throttle the popper position refresh to 60fps
+ window.requestAnimationFrame(function () {
+ // if popper is destroyed, don't perform any further update
+ if (_this2.state.isDestroyed) {
+ return;
+ }
+
+ var now = window.performance.now();
+ if (now - _this2.state.lastFrame <= 16) {
+ // this update fired to early! drop it
+ // but schedule a new one that will be ran at the end of the updates
+ // chain to make sure everything is proper updated
+ return _this2.update();
+ }
+ _this2.state.lastFrame = now;
+
+ // 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 = _this2.options.placement;
+ data.originalPlacement = _this2.options.placement;
+
+ // compute the popper and reference offsets and put them inside data.offsets
+ data.offsets = getOffsets(_this2.state, _this2.popper, _this2.reference, data.placement);
+
+ // get boundaries
+ data.boundaries = getBoundaries(_this2.popper, data, _this2.options.boundariesPadding, _this2.options.boundariesElement);
+
+ // run the modifiers
+ data = runModifiers(_this2.modifiers, _this2.options, data);
+
+ // the first `update` will call `onCreate` callback
+ // the other ones will call `onUpdate` callback
+ if (isFirstCall && isFunction(_this2.state.createCalback)) {
+ _this2.state.createCalback(data);
+ } else if (!isFirstCall && isFunction(_this2.state.updateCallback)) {
+ _this2.state.updateCallback(data);
+ }
+ });
+ }
+
+ /**
+ * If a function is passed, it will be executed after the initialization of popper with as first argument the Popper instance.
+ * @method
+ * @memberof Popper
+ * @param {createCallback} callback
+ */
+
+ }, {
+ key: 'onCreate',
+ value: function onCreate(callback) {
+ // the createCallbacks return as first argument the popper instance
+ this.state.createCalback = callback;
+ return this;
+ }
+
+ /**
+ * Callback called when the popper is created.
+ * Access Popper.js instance with `data.instance`.
+ * @callback createCallback
+ * @static
+ * @param {dataObject} data
+ */
+
+ /**
+ * If a function is passed, it will be executed after each update of popper with as first argument the set of coordinates and informations
+ * used to style popper and its arrow.
+ * NOTE: it doesn't get fired on the first call of the `Popper.update()` method inside the `Popper` constructor!
+ * @method
+ * @memberof Popper
+ * @param {updateCallback} callback
+ */
+
+ }, {
+ key: 'onUpdate',
+ value: function onUpdate(callback) {
+ this.state.updateCallback = callback;
+ return this;
+ }
+
+ /**
+ * Callback called when the popper is updated, this callback is not called
+ * on the initialization/creation of the popper, but only on subsequent
+ * updates.
+ * Access Popper.js instance with `data.instance`.
+ * @callback updateCallback
+ * @static
+ * @param {dataObject} data
+ */
+
+ /**
+ * Destroy the popper
+ * @method
+ * @memberof Popper
+ */
+
+ }, {
+ key: 'destroy',
+ value: function destroy() {
+ this.state.isDestroyed = true;
+ this.popper.removeAttribute('x-placement');
+ this.popper.style.left = '';
+ this.popper.style.position = '';
+ this.popper.style.top = '';
+ this.popper.style[getSupportedPropertyName('transform')] = '';
+ this.state = removeEventListeners(this.reference, this.state, this.options);
+
+ // 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;
+ }
+
+ /**
+ * Collection of utilities useful when writing custom modifiers
+ * @memberof Popper
+ */
+
+
+ /**
+ * Default Popper.js options
+ * @memberof Popper
+ */
+
+ }]);
+ return Popper;
+ }();
+
+ Popper.Utils = Utils;
+
+ return Popper;
+
+}));
\ No newline at end of file
