mirror of
https://github.com/twbs/bootstrap.git
synced 2022-11-09 12:25:43 -05:00
671 lines
21 KiB
JavaScript
671 lines
21 KiB
JavaScript
/*!
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* Bootstrap dropdown.js v4.3.1 (https://getbootstrap.com/)
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* Copyright 2011-2019 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
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*/
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(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('./dom/data.js'), require('./dom/event-handler.js'), require('./dom/manipulator.js'), require('popper.js'), require('./dom/selector-engine.js')) :
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typeof define === 'function' && define.amd ? define(['./dom/data.js', './dom/event-handler.js', './dom/manipulator.js', 'popper.js', './dom/selector-engine.js'], factory) :
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(global = global || self, global.Dropdown = factory(global.Data, global.EventHandler, global.Manipulator, global.Popper, global.SelectorEngine));
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}(this, function (Data, EventHandler, Manipulator, Popper, SelectorEngine) { 'use strict';
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Data = Data && Data.hasOwnProperty('default') ? Data['default'] : Data;
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EventHandler = EventHandler && EventHandler.hasOwnProperty('default') ? EventHandler['default'] : EventHandler;
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Manipulator = Manipulator && Manipulator.hasOwnProperty('default') ? Manipulator['default'] : Manipulator;
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Popper = Popper && Popper.hasOwnProperty('default') ? Popper['default'] : Popper;
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SelectorEngine = SelectorEngine && SelectorEngine.hasOwnProperty('default') ? SelectorEngine['default'] : SelectorEngine;
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function _defineProperties(target, props) {
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for (var i = 0; i < props.length; i++) {
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var descriptor = props[i];
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descriptor.enumerable = descriptor.enumerable || false;
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descriptor.configurable = true;
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if ("value" in descriptor) descriptor.writable = true;
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Object.defineProperty(target, descriptor.key, descriptor);
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}
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}
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function _createClass(Constructor, protoProps, staticProps) {
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if (protoProps) _defineProperties(Constructor.prototype, protoProps);
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if (staticProps) _defineProperties(Constructor, staticProps);
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return Constructor;
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}
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function _defineProperty(obj, key, value) {
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if (key in obj) {
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Object.defineProperty(obj, key, {
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value: value,
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enumerable: true,
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configurable: true,
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writable: true
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});
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} else {
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obj[key] = value;
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}
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return obj;
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}
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function _objectSpread(target) {
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for (var i = 1; i < arguments.length; i++) {
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var source = arguments[i] != null ? arguments[i] : {};
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var ownKeys = Object.keys(source);
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if (typeof Object.getOwnPropertySymbols === 'function') {
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ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
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return Object.getOwnPropertyDescriptor(source, sym).enumerable;
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}));
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}
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ownKeys.forEach(function (key) {
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_defineProperty(target, key, source[key]);
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});
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}
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return target;
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}
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/**
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* --------------------------------------------------------------------------
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* Bootstrap (v4.3.1): util/index.js
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
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* --------------------------------------------------------------------------
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*/
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var _window = window,
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jQuery = _window.jQuery; // Shoutout AngusCroll (https://goo.gl/pxwQGp)
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var toType = function toType(obj) {
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return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase();
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};
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var getSelectorFromElement = function getSelectorFromElement(element) {
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var selector = element.getAttribute('data-target');
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if (!selector || selector === '#') {
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var hrefAttr = element.getAttribute('href');
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selector = hrefAttr && hrefAttr !== '#' ? hrefAttr.trim() : '';
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}
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try {
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return document.querySelector(selector) ? selector : null;
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} catch (error) {
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return null;
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}
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};
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var isElement = function isElement(obj) {
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return (obj[0] || obj).nodeType;
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};
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var typeCheckConfig = function typeCheckConfig(componentName, config, configTypes) {
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Object.keys(configTypes).forEach(function (property) {
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var expectedTypes = configTypes[property];
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var value = config[property];
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var valueType = value && isElement(value) ? 'element' : toType(value);
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if (!new RegExp(expectedTypes).test(valueType)) {
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throw new Error(componentName.toUpperCase() + ": " + ("Option \"" + property + "\" provided type \"" + valueType + "\" ") + ("but expected type \"" + expectedTypes + "\"."));
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}
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});
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};
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var makeArray = function makeArray(nodeList) {
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if (!nodeList) {
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return [];
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}
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return [].slice.call(nodeList);
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};
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var noop = function noop() {
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return function () {};
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};
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/**
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* ------------------------------------------------------------------------
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* Constants
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* ------------------------------------------------------------------------
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*/
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var NAME = 'dropdown';
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var VERSION = '4.3.1';
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var DATA_KEY = 'bs.dropdown';
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var EVENT_KEY = "." + DATA_KEY;
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var DATA_API_KEY = '.data-api';
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var ESCAPE_KEYCODE = 27; // KeyboardEvent.which value for Escape (Esc) key
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var SPACE_KEYCODE = 32; // KeyboardEvent.which value for space key
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var TAB_KEYCODE = 9; // KeyboardEvent.which value for tab key
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var ARROW_UP_KEYCODE = 38; // KeyboardEvent.which value for up arrow key
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var ARROW_DOWN_KEYCODE = 40; // KeyboardEvent.which value for down arrow key
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var RIGHT_MOUSE_BUTTON_WHICH = 3; // MouseEvent.which value for the right button (assuming a right-handed mouse)
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var REGEXP_KEYDOWN = new RegExp(ARROW_UP_KEYCODE + "|" + ARROW_DOWN_KEYCODE + "|" + ESCAPE_KEYCODE);
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var Event = {
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HIDE: "hide" + EVENT_KEY,
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HIDDEN: "hidden" + EVENT_KEY,
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SHOW: "show" + EVENT_KEY,
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SHOWN: "shown" + EVENT_KEY,
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CLICK: "click" + EVENT_KEY,
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CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY,
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KEYDOWN_DATA_API: "keydown" + EVENT_KEY + DATA_API_KEY,
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KEYUP_DATA_API: "keyup" + EVENT_KEY + DATA_API_KEY
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};
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var ClassName = {
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DISABLED: 'disabled',
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SHOW: 'show',
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DROPUP: 'dropup',
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DROPRIGHT: 'dropright',
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DROPLEFT: 'dropleft',
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MENURIGHT: 'dropdown-menu-right',
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POSITION_STATIC: 'position-static'
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};
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var Selector = {
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DATA_TOGGLE: '[data-toggle="dropdown"]',
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FORM_CHILD: '.dropdown form',
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MENU: '.dropdown-menu',
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NAVBAR_NAV: '.navbar-nav',
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VISIBLE_ITEMS: '.dropdown-menu .dropdown-item:not(.disabled):not(:disabled)'
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};
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var AttachmentMap = {
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TOP: 'top-start',
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TOPEND: 'top-end',
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BOTTOM: 'bottom-start',
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BOTTOMEND: 'bottom-end',
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RIGHT: 'right-start',
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RIGHTEND: 'right-end',
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LEFT: 'left-start',
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LEFTEND: 'left-end'
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};
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var Default = {
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offset: 0,
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flip: true,
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boundary: 'scrollParent',
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reference: 'toggle',
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display: 'dynamic'
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};
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var DefaultType = {
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offset: '(number|string|function)',
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flip: 'boolean',
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boundary: '(string|element)',
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reference: '(string|element)',
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display: 'string'
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/**
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* ------------------------------------------------------------------------
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* Class Definition
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* ------------------------------------------------------------------------
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*/
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};
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var Dropdown =
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/*#__PURE__*/
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function () {
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function Dropdown(element, config) {
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this._element = element;
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this._popper = null;
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this._config = this._getConfig(config);
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this._menu = this._getMenuElement();
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this._inNavbar = this._detectNavbar();
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this._addEventListeners();
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Data.setData(element, DATA_KEY, this);
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} // Getters
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var _proto = Dropdown.prototype;
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// Public
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_proto.toggle = function toggle() {
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if (this._element.disabled || this._element.classList.contains(ClassName.DISABLED)) {
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return;
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}
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var parent = Dropdown._getParentFromElement(this._element);
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var isActive = this._menu.classList.contains(ClassName.SHOW);
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Dropdown._clearMenus();
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if (isActive) {
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return;
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}
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var relatedTarget = {
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relatedTarget: this._element
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};
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var showEvent = EventHandler.trigger(parent, Event.SHOW, relatedTarget);
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if (showEvent.defaultPrevented) {
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return;
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} // Disable totally Popper.js for Dropdown in Navbar
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if (!this._inNavbar) {
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/**
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* Check for Popper dependency
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* Popper - https://popper.js.org
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*/
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if (typeof Popper === 'undefined') {
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throw new TypeError('Bootstrap\'s dropdowns require Popper.js (https://popper.js.org)');
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}
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var referenceElement = this._element;
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if (this._config.reference === 'parent') {
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referenceElement = parent;
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} else if (isElement(this._config.reference)) {
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referenceElement = this._config.reference; // Check if it's jQuery element
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if (typeof this._config.reference.jquery !== 'undefined') {
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referenceElement = this._config.reference[0];
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}
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} // If boundary is not `scrollParent`, then set position to `static`
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// to allow the menu to "escape" the scroll parent's boundaries
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// https://github.com/twbs/bootstrap/issues/24251
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if (this._config.boundary !== 'scrollParent') {
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parent.classList.add(ClassName.POSITION_STATIC);
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}
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this._popper = new Popper(referenceElement, this._menu, this._getPopperConfig());
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} // If this is a touch-enabled device we add extra
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// empty mouseover listeners to the body's immediate children;
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// only needed because of broken event delegation on iOS
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// https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
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if ('ontouchstart' in document.documentElement && !makeArray(SelectorEngine.closest(parent, Selector.NAVBAR_NAV)).length) {
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makeArray(document.body.children).forEach(function (elem) {
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return EventHandler.on(elem, 'mouseover', null, noop());
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});
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}
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this._element.focus();
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this._element.setAttribute('aria-expanded', true);
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Manipulator.toggleClass(this._menu, ClassName.SHOW);
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Manipulator.toggleClass(parent, ClassName.SHOW);
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EventHandler.trigger(parent, Event.SHOWN, relatedTarget);
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};
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_proto.show = function show() {
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if (this._element.disabled || this._element.classList.contains(ClassName.DISABLED) || this._menu.classList.contains(ClassName.SHOW)) {
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return;
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}
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var parent = Dropdown._getParentFromElement(this._element);
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var relatedTarget = {
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relatedTarget: this._element
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};
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var showEvent = EventHandler.trigger(parent, Event.SHOW, relatedTarget);
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if (showEvent.defaultPrevented) {
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return;
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}
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Manipulator.toggleClass(this._menu, ClassName.SHOW);
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Manipulator.toggleClass(parent, ClassName.SHOW);
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EventHandler.trigger(parent, Event.SHOWN, relatedTarget);
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};
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_proto.hide = function hide() {
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if (this._element.disabled || this._element.classList.contains(ClassName.DISABLED) || !this._menu.classList.contains(ClassName.SHOW)) {
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return;
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}
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var parent = Dropdown._getParentFromElement(this._element);
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var relatedTarget = {
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relatedTarget: this._element
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};
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var hideEvent = EventHandler.trigger(parent, Event.HIDE, relatedTarget);
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if (hideEvent.defaultPrevented) {
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return;
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}
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Manipulator.toggleClass(this._menu, ClassName.SHOW);
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Manipulator.toggleClass(parent, ClassName.SHOW);
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EventHandler.trigger(parent, Event.HIDDEN, relatedTarget);
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};
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_proto.dispose = function dispose() {
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Data.removeData(this._element, DATA_KEY);
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EventHandler.off(this._element, EVENT_KEY);
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this._element = null;
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this._menu = null;
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if (this._popper !== null) {
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this._popper.destroy();
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this._popper = null;
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}
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};
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_proto.update = function update() {
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this._inNavbar = this._detectNavbar();
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if (this._popper !== null) {
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this._popper.scheduleUpdate();
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}
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} // Private
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;
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_proto._addEventListeners = function _addEventListeners() {
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var _this = this;
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EventHandler.on(this._element, Event.CLICK, function (event) {
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event.preventDefault();
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event.stopPropagation();
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_this.toggle();
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});
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};
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_proto._getConfig = function _getConfig(config) {
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config = _objectSpread({}, this.constructor.Default, Manipulator.getDataAttributes(this._element), config);
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typeCheckConfig(NAME, config, this.constructor.DefaultType);
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return config;
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};
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_proto._getMenuElement = function _getMenuElement() {
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if (!this._menu) {
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var parent = Dropdown._getParentFromElement(this._element);
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if (parent) {
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this._menu = SelectorEngine.findOne(Selector.MENU, parent);
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}
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}
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return this._menu;
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};
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_proto._getPlacement = function _getPlacement() {
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var parentDropdown = this._element.parentNode;
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var placement = AttachmentMap.BOTTOM; // Handle dropup
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if (parentDropdown.classList.contains(ClassName.DROPUP)) {
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placement = AttachmentMap.TOP;
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if (this._menu.classList.contains(ClassName.MENURIGHT)) {
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placement = AttachmentMap.TOPEND;
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}
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} else if (parentDropdown.classList.contains(ClassName.DROPRIGHT)) {
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placement = AttachmentMap.RIGHT;
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} else if (parentDropdown.classList.contains(ClassName.DROPLEFT)) {
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placement = AttachmentMap.LEFT;
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} else if (this._menu.classList.contains(ClassName.MENURIGHT)) {
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placement = AttachmentMap.BOTTOMEND;
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}
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return placement;
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};
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_proto._detectNavbar = function _detectNavbar() {
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return Boolean(SelectorEngine.closest(this._element, '.navbar'));
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};
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_proto._getOffset = function _getOffset() {
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var _this2 = this;
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var offset = {};
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if (typeof this._config.offset === 'function') {
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offset.fn = function (data) {
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data.offsets = _objectSpread({}, data.offsets, _this2._config.offset(data.offsets, _this2._element) || {});
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return data;
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};
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} else {
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offset.offset = this._config.offset;
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}
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return offset;
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};
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_proto._getPopperConfig = function _getPopperConfig() {
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var popperConfig = {
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placement: this._getPlacement(),
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modifiers: {
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offset: this._getOffset(),
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flip: {
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enabled: this._config.flip
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},
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preventOverflow: {
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boundariesElement: this._config.boundary
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}
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} // Disable Popper.js if we have a static display
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};
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if (this._config.display === 'static') {
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popperConfig.modifiers.applyStyle = {
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enabled: false
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};
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}
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return popperConfig;
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} // Static
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;
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Dropdown._dropdownInterface = function _dropdownInterface(element, config) {
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var data = Data.getData(element, DATA_KEY);
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var _config = typeof config === 'object' ? config : null;
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if (!data) {
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data = new Dropdown(element, _config);
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}
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if (typeof config === 'string') {
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if (typeof data[config] === 'undefined') {
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throw new TypeError("No method named \"" + config + "\"");
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}
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data[config]();
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}
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};
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Dropdown._jQueryInterface = function _jQueryInterface(config) {
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return this.each(function () {
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Dropdown._dropdownInterface(this, config);
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});
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};
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Dropdown._clearMenus = function _clearMenus(event) {
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if (event && (event.which === RIGHT_MOUSE_BUTTON_WHICH || event.type === 'keyup' && event.which !== TAB_KEYCODE)) {
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return;
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}
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var toggles = makeArray(SelectorEngine.find(Selector.DATA_TOGGLE));
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for (var i = 0, len = toggles.length; i < len; i++) {
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var parent = Dropdown._getParentFromElement(toggles[i]);
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var context = Data.getData(toggles[i], DATA_KEY);
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var relatedTarget = {
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relatedTarget: toggles[i]
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};
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if (event && event.type === 'click') {
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relatedTarget.clickEvent = event;
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}
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if (!context) {
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continue;
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}
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var dropdownMenu = context._menu;
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if (!parent.classList.contains(ClassName.SHOW)) {
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continue;
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}
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if (event && (event.type === 'click' && /input|textarea/i.test(event.target.tagName) || event.type === 'keyup' && event.which === TAB_KEYCODE) && parent.contains(event.target)) {
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continue;
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}
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var hideEvent = EventHandler.trigger(parent, Event.HIDE, relatedTarget);
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if (hideEvent.defaultPrevented) {
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continue;
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} // If this is a touch-enabled device we remove the extra
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// empty mouseover listeners we added for iOS support
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if ('ontouchstart' in document.documentElement) {
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makeArray(document.body.children).forEach(function (elem) {
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return EventHandler.off(elem, 'mouseover', null, noop());
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});
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}
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toggles[i].setAttribute('aria-expanded', 'false');
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dropdownMenu.classList.remove(ClassName.SHOW);
|
|
parent.classList.remove(ClassName.SHOW);
|
|
EventHandler.trigger(parent, Event.HIDDEN, relatedTarget);
|
|
}
|
|
};
|
|
|
|
Dropdown._getParentFromElement = function _getParentFromElement(element) {
|
|
var parent;
|
|
var selector = getSelectorFromElement(element);
|
|
|
|
if (selector) {
|
|
parent = SelectorEngine.findOne(selector);
|
|
}
|
|
|
|
return parent || element.parentNode;
|
|
};
|
|
|
|
Dropdown._dataApiKeydownHandler = function _dataApiKeydownHandler(event) {
|
|
// If not input/textarea:
|
|
// - And not a key in REGEXP_KEYDOWN => not a dropdown command
|
|
// If input/textarea:
|
|
// - If space key => not a dropdown command
|
|
// - If key is other than escape
|
|
// - If key is not up or down => not a dropdown command
|
|
// - If trigger inside the menu => not a dropdown command
|
|
if (/input|textarea/i.test(event.target.tagName) ? event.which === SPACE_KEYCODE || event.which !== ESCAPE_KEYCODE && (event.which !== ARROW_DOWN_KEYCODE && event.which !== ARROW_UP_KEYCODE || SelectorEngine.closest(event.target, Selector.MENU)) : !REGEXP_KEYDOWN.test(event.which)) {
|
|
return;
|
|
}
|
|
|
|
event.preventDefault();
|
|
event.stopPropagation();
|
|
|
|
if (this.disabled || this.classList.contains(ClassName.DISABLED)) {
|
|
return;
|
|
}
|
|
|
|
var parent = Dropdown._getParentFromElement(this);
|
|
|
|
var isActive = parent.classList.contains(ClassName.SHOW);
|
|
|
|
if (!isActive || isActive && (event.which === ESCAPE_KEYCODE || event.which === SPACE_KEYCODE)) {
|
|
if (event.which === ESCAPE_KEYCODE) {
|
|
SelectorEngine.findOne(Selector.DATA_TOGGLE, parent).focus();
|
|
}
|
|
|
|
Dropdown._clearMenus();
|
|
|
|
return;
|
|
}
|
|
|
|
var items = makeArray(SelectorEngine.find(Selector.VISIBLE_ITEMS, parent));
|
|
|
|
if (!items.length) {
|
|
return;
|
|
}
|
|
|
|
var index = items.indexOf(event.target);
|
|
|
|
if (event.which === ARROW_UP_KEYCODE && index > 0) {
|
|
// Up
|
|
index--;
|
|
}
|
|
|
|
if (event.which === ARROW_DOWN_KEYCODE && index < items.length - 1) {
|
|
// Down
|
|
index++;
|
|
}
|
|
|
|
if (index < 0) {
|
|
index = 0;
|
|
}
|
|
|
|
items[index].focus();
|
|
};
|
|
|
|
Dropdown._getInstance = function _getInstance(element) {
|
|
return Data.getData(element, DATA_KEY);
|
|
};
|
|
|
|
_createClass(Dropdown, null, [{
|
|
key: "VERSION",
|
|
get: function get() {
|
|
return VERSION;
|
|
}
|
|
}, {
|
|
key: "Default",
|
|
get: function get() {
|
|
return Default;
|
|
}
|
|
}, {
|
|
key: "DefaultType",
|
|
get: function get() {
|
|
return DefaultType;
|
|
}
|
|
}]);
|
|
|
|
return Dropdown;
|
|
}();
|
|
/**
|
|
* ------------------------------------------------------------------------
|
|
* Data Api implementation
|
|
* ------------------------------------------------------------------------
|
|
*/
|
|
|
|
|
|
EventHandler.on(document, Event.KEYDOWN_DATA_API, Selector.DATA_TOGGLE, Dropdown._dataApiKeydownHandler);
|
|
EventHandler.on(document, Event.KEYDOWN_DATA_API, Selector.MENU, Dropdown._dataApiKeydownHandler);
|
|
EventHandler.on(document, Event.CLICK_DATA_API, Dropdown._clearMenus);
|
|
EventHandler.on(document, Event.KEYUP_DATA_API, Dropdown._clearMenus);
|
|
EventHandler.on(document, Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
|
|
event.preventDefault();
|
|
event.stopPropagation();
|
|
|
|
Dropdown._dropdownInterface(this, 'toggle');
|
|
});
|
|
EventHandler.on(document, Event.CLICK_DATA_API, Selector.FORM_CHILD, function (e) {
|
|
return e.stopPropagation();
|
|
});
|
|
/**
|
|
* ------------------------------------------------------------------------
|
|
* jQuery
|
|
* ------------------------------------------------------------------------
|
|
* add .dropdown to jQuery only if jQuery is present
|
|
*/
|
|
|
|
if (typeof jQuery !== 'undefined') {
|
|
var JQUERY_NO_CONFLICT = jQuery.fn[NAME];
|
|
jQuery.fn[NAME] = Dropdown._jQueryInterface;
|
|
jQuery.fn[NAME].Constructor = Dropdown;
|
|
|
|
jQuery.fn[NAME].noConflict = function () {
|
|
jQuery.fn[NAME] = JQUERY_NO_CONFLICT;
|
|
return Dropdown._jQueryInterface;
|
|
};
|
|
}
|
|
|
|
return Dropdown;
|
|
|
|
}));
|
|
//# sourceMappingURL=dropdown.js.map
|