var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } /** * -------------------------------------------------------------------------- * Bootstrap (v4.0.0-beta): dropdown.js * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE) * -------------------------------------------------------------------------- */ var Dropdown = function ($) { /** * Check for Popper dependency * Popper - https://popper.js.org */ if (typeof Popper === 'undefined') { throw new Error('Bootstrap dropdown require Popper.js (https://popper.js.org)'); } /** * ------------------------------------------------------------------------ * Constants * ------------------------------------------------------------------------ */ var NAME = 'dropdown'; var VERSION = '4.0.0-beta'; var DATA_KEY = 'bs.dropdown'; var EVENT_KEY = '.' + DATA_KEY; var DATA_API_KEY = '.data-api'; var JQUERY_NO_CONFLICT = $.fn[NAME]; var ESCAPE_KEYCODE = 27; // KeyboardEvent.which value for Escape (Esc) key var SPACE_KEYCODE = 32; // KeyboardEvent.which value for space key var TAB_KEYCODE = 9; // KeyboardEvent.which value for tab key var ARROW_UP_KEYCODE = 38; // KeyboardEvent.which value for up arrow key var ARROW_DOWN_KEYCODE = 40; // KeyboardEvent.which value for down arrow key var RIGHT_MOUSE_BUTTON_WHICH = 3; // MouseEvent.which value for the right button (assuming a right-handed mouse) var REGEXP_KEYDOWN = new RegExp(ARROW_UP_KEYCODE + '|' + ARROW_DOWN_KEYCODE + '|' + ESCAPE_KEYCODE); var Event = { HIDE: 'hide' + EVENT_KEY, HIDDEN: 'hidden' + EVENT_KEY, SHOW: 'show' + EVENT_KEY, SHOWN: 'shown' + EVENT_KEY, CLICK: 'click' + EVENT_KEY, CLICK_DATA_API: 'click' + EVENT_KEY + DATA_API_KEY, KEYDOWN_DATA_API: 'keydown' + EVENT_KEY + DATA_API_KEY, KEYUP_DATA_API: 'keyup' + EVENT_KEY + DATA_API_KEY }; var ClassName = { DISABLED: 'disabled', SHOW: 'show', DROPUP: 'dropup', MENURIGHT: 'dropdown-menu-right', MENULEFT: 'dropdown-menu-left' }; var Selector = { DATA_TOGGLE: '[data-toggle="dropdown"]', FORM_CHILD: '.dropdown form', MENU: '.dropdown-menu', NAVBAR_NAV: '.navbar-nav', VISIBLE_ITEMS: '.dropdown-menu .dropdown-item:not(.disabled)' }; var AttachmentMap = { TOP: 'top-start', TOPEND: 'top-end', BOTTOM: 'bottom-start', BOTTOMEND: 'bottom-end' }; var Default = { placement: AttachmentMap.BOTTOM, offset: 0, flip: true }; var DefaultType = { placement: 'string', offset: '(number|string)', flip: 'boolean' /** * ------------------------------------------------------------------------ * Class Definition * ------------------------------------------------------------------------ */ }; var Dropdown = function () { function Dropdown(element, config) { _classCallCheck(this, Dropdown); this._element = element; this._popper = null; this._config = this._getConfig(config); this._menu = this._getMenuElement(); this._inNavbar = this._detectNavbar(); this._addEventListeners(); } // getters // public Dropdown.prototype.toggle = function toggle() { if (this._element.disabled || $(this._element).hasClass(ClassName.DISABLED)) { return; } var parent = Dropdown._getParentFromElement(this._element); var isActive = $(this._menu).hasClass(ClassName.SHOW); Dropdown._clearMenus(); if (isActive) { return; } var relatedTarget = { relatedTarget: this._element }; var showEvent = $.Event(Event.SHOW, relatedTarget); $(parent).trigger(showEvent); if (showEvent.isDefaultPrevented()) { return; } var element = this._element; // for dropup with alignment we use the parent as popper container if ($(parent).hasClass(ClassName.DROPUP)) { if ($(this._menu).hasClass(ClassName.MENULEFT) || $(this._menu).hasClass(ClassName.MENURIGHT)) { element = parent; } } this._popper = new Popper(element, this._menu, this._getPopperConfig()); // if this is a touch-enabled device we add extra // empty mouseover listeners to the body's immediate children; // only needed because of broken event delegation on iOS // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html if ('ontouchstart' in document.documentElement && !$(parent).closest(Selector.NAVBAR_NAV).length) { $('body').children().on('mouseover', null, $.noop); } this._element.focus(); this._element.setAttribute('aria-expanded', true); $(this._menu).toggleClass(ClassName.SHOW); $(parent).toggleClass(ClassName.SHOW).trigger($.Event(Event.SHOWN, relatedTarget)); }; Dropdown.prototype.dispose = function dispose() { $.removeData(this._element, DATA_KEY); $(this._element).off(EVENT_KEY); this._element = null; this._menu = null; if (this._popper !== null) { this._popper.destroy(); } this._popper = null; }; Dropdown.prototype.update = function update() { this._inNavbar = this._detectNavbar(); if (this._popper !== null) { this._popper.scheduleUpdate(); } }; // private Dropdown.prototype._addEventListeners = function _addEventListeners() { var _this = this; $(this._element).on(Event.CLICK, function (event) { event.preventDefault(); event.stopPropagation(); _this.toggle(); }); }; Dropdown.prototype._getConfig = function _getConfig(config) { var elementData = $(this._element).data(); if (elementData.placement !== undefined) { elementData.placement = AttachmentMap[elementData.placement.toUpperCase()]; } config = $.extend({}, this.constructor.Default, $(this._element).data(), config); Util.typeCheckConfig(NAME, config, this.constructor.DefaultType); return config; }; Dropdown.prototype._getMenuElement = function _getMenuElement() { if (!this._menu) { var parent = Dropdown._getParentFromElement(this._element); this._menu = $(parent).find(Selector.MENU)[0]; } return this._menu; }; Dropdown.prototype._getPlacement = function _getPlacement() { var $parentDropdown = $(this._element).parent(); var placement = this._config.placement; // Handle dropup if ($parentDropdown.hasClass(ClassName.DROPUP) || this._config.placement === AttachmentMap.TOP) { placement = AttachmentMap.TOP; if ($(this._menu).hasClass(ClassName.MENURIGHT)) { placement = AttachmentMap.TOPEND; } } else if ($(this._menu).hasClass(ClassName.MENURIGHT)) { placement = AttachmentMap.BOTTOMEND; } return placement; }; Dropdown.prototype._detectNavbar = function _detectNavbar() { return $(this._element).closest('.navbar').length > 0; }; Dropdown.prototype._getPopperConfig = function _getPopperConfig() { var popperConfig = { placement: this._getPlacement(), modifiers: { offset: { offset: this._config.offset }, flip: { enabled: this._config.flip } } // Disable Popper.js for Dropdown in Navbar };if (this._inNavbar) { popperConfig.modifiers.applyStyle = { enabled: !this._inNavbar }; } return popperConfig; }; // static Dropdown._jQueryInterface = function _jQueryInterface(config) { return this.each(function () { var data = $(this).data(DATA_KEY); var _config = (typeof config === 'undefined' ? 'undefined' : _typeof(config)) === 'object' ? config : null; if (!data) { data = new Dropdown(this, _config); $(this).data(DATA_KEY, data); } if (typeof config === 'string') { if (data[config] === undefined) { throw new Error('No method named "' + config + '"'); } data[config](); } }); }; Dropdown._clearMenus = function _clearMenus(event) { if (event && (event.which === RIGHT_MOUSE_BUTTON_WHICH || event.type === 'keyup' && event.which !== TAB_KEYCODE)) { return; } var toggles = $.makeArray($(Selector.DATA_TOGGLE)); for (var i = 0; i < toggles.length; i++) { var parent = Dropdown._getParentFromElement(toggles[i]); var context = $(toggles[i]).data(DATA_KEY); var relatedTarget = { relatedTarget: toggles[i] }; if (!context) { continue; } var dropdownMenu = context._menu; if (!$(parent).hasClass(ClassName.SHOW)) { continue; } if (event && (event.type === 'click' && /input|textarea/i.test(event.target.tagName) || event.type === 'keyup' && event.which === TAB_KEYCODE) && $.contains(parent, event.target)) { continue; } var hideEvent = $.Event(Event.HIDE, relatedTarget); $(parent).trigger(hideEvent); if (hideEvent.isDefaultPrevented()) { continue; } // if this is a touch-enabled device we remove the extra // empty mouseover listeners we added for iOS support if ('ontouchstart' in document.documentElement) { $('body').children().off('mouseover', null, $.noop); } toggles[i].setAttribute('aria-expanded', 'false'); $(dropdownMenu).removeClass(ClassName.SHOW); $(parent).removeClass(ClassName.SHOW).trigger($.Event(Event.HIDDEN, relatedTarget)); } }; Dropdown._getParentFromElement = function _getParentFromElement(element) { var parent = void 0; var selector = Util.getSelectorFromElement(element); if (selector) { parent = $(selector)[0]; } return parent || element.parentNode; }; Dropdown._dataApiKeydownHandler = function _dataApiKeydownHandler(event) { if (!REGEXP_KEYDOWN.test(event.which) || /button/i.test(event.target.tagName) && event.which === SPACE_KEYCODE || /input|textarea/i.test(event.target.tagName)) { return; } event.preventDefault(); event.stopPropagation(); if (this.disabled || $(this).hasClass(ClassName.DISABLED)) { return; } var parent = Dropdown._getParentFromElement(this); var isActive = $(parent).hasClass(ClassName.SHOW); if (!isActive && (event.which !== ESCAPE_KEYCODE || event.which !== SPACE_KEYCODE) || isActive && (event.which === ESCAPE_KEYCODE || event.which === SPACE_KEYCODE)) { if (event.which === ESCAPE_KEYCODE) { var toggle = $(parent).find(Selector.DATA_TOGGLE)[0]; $(toggle).trigger('focus'); } $(this).trigger('click'); return; } var items = $(parent).find(Selector.VISIBLE_ITEMS).get(); 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(); }; _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 * ------------------------------------------------------------------------ */ $(document).on(Event.KEYDOWN_DATA_API, Selector.DATA_TOGGLE, Dropdown._dataApiKeydownHandler).on(Event.KEYDOWN_DATA_API, Selector.MENU, Dropdown._dataApiKeydownHandler).on(Event.CLICK_DATA_API + ' ' + Event.KEYUP_DATA_API, Dropdown._clearMenus).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) { event.preventDefault(); event.stopPropagation(); Dropdown._jQueryInterface.call($(this), 'toggle'); }).on(Event.CLICK_DATA_API, Selector.FORM_CHILD, function (e) { e.stopPropagation(); }); /** * ------------------------------------------------------------------------ * jQuery * ------------------------------------------------------------------------ */ $.fn[NAME] = Dropdown._jQueryInterface; $.fn[NAME].Constructor = Dropdown; $.fn[NAME].noConflict = function () { $.fn[NAME] = JQUERY_NO_CONFLICT; return Dropdown._jQueryInterface; }; return Dropdown; }(jQuery); /* global Popper */ //# sourceMappingURL=dropdown.js.map