mirror of
https://github.com/twbs/bootstrap.git
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663 lines
22 KiB
JavaScript
663 lines
22 KiB
JavaScript
/*!
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* Bootstrap dropdown.js v5.0.0-beta3 (https://getbootstrap.com/)
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* Copyright 2011-2021 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/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('@popperjs/core'), require('./dom/data.js'), require('./dom/event-handler.js'), require('./dom/manipulator.js'), require('./dom/selector-engine.js'), require('./base-component.js')) :
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typeof define === 'function' && define.amd ? define(['@popperjs/core', './dom/data', './dom/event-handler', './dom/manipulator', './dom/selector-engine', './base-component'], factory) :
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(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Dropdown = factory(global.Popper, global.Data, global.EventHandler, global.Manipulator, global.SelectorEngine, global.Base));
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}(this, (function (Popper, Data, EventHandler, Manipulator, SelectorEngine, BaseComponent) { 'use strict';
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function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }
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function _interopNamespace(e) {
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if (e && e.__esModule) return e;
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var n = Object.create(null);
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if (e) {
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Object.keys(e).forEach(function (k) {
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if (k !== 'default') {
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var d = Object.getOwnPropertyDescriptor(e, k);
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Object.defineProperty(n, k, d.get ? d : {
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enumerable: true,
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get: function () {
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return e[k];
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}
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});
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}
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});
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}
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n['default'] = e;
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return Object.freeze(n);
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}
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var Popper__namespace = /*#__PURE__*/_interopNamespace(Popper);
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var Data__default = /*#__PURE__*/_interopDefaultLegacy(Data);
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var EventHandler__default = /*#__PURE__*/_interopDefaultLegacy(EventHandler);
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var Manipulator__default = /*#__PURE__*/_interopDefaultLegacy(Manipulator);
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var SelectorEngine__default = /*#__PURE__*/_interopDefaultLegacy(SelectorEngine);
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var BaseComponent__default = /*#__PURE__*/_interopDefaultLegacy(BaseComponent);
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/**
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* --------------------------------------------------------------------------
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* Bootstrap (v5.0.0-beta3): util/index.js
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
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* --------------------------------------------------------------------------
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*/
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const toType = obj => {
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if (obj === null || obj === undefined) {
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return `${obj}`;
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}
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return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase();
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};
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const getSelector = element => {
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let selector = element.getAttribute('data-bs-target');
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if (!selector || selector === '#') {
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let hrefAttr = element.getAttribute('href'); // The only valid content that could double as a selector are IDs or classes,
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// so everything starting with `#` or `.`. If a "real" URL is used as the selector,
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// `document.querySelector` will rightfully complain it is invalid.
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// See https://github.com/twbs/bootstrap/issues/32273
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if (!hrefAttr || !hrefAttr.includes('#') && !hrefAttr.startsWith('.')) {
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return null;
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} // Just in case some CMS puts out a full URL with the anchor appended
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if (hrefAttr.includes('#') && !hrefAttr.startsWith('#')) {
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hrefAttr = '#' + hrefAttr.split('#')[1];
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}
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selector = hrefAttr && hrefAttr !== '#' ? hrefAttr.trim() : null;
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}
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return selector;
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};
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const getElementFromSelector = element => {
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const selector = getSelector(element);
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return selector ? document.querySelector(selector) : null;
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};
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const isElement = obj => (obj[0] || obj).nodeType;
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const typeCheckConfig = (componentName, config, configTypes) => {
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Object.keys(configTypes).forEach(property => {
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const expectedTypes = configTypes[property];
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const value = config[property];
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const valueType = value && isElement(value) ? 'element' : toType(value);
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if (!new RegExp(expectedTypes).test(valueType)) {
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throw new TypeError(`${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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const isVisible = element => {
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if (!element) {
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return false;
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}
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if (element.style && element.parentNode && element.parentNode.style) {
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const elementStyle = getComputedStyle(element);
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const parentNodeStyle = getComputedStyle(element.parentNode);
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return elementStyle.display !== 'none' && parentNodeStyle.display !== 'none' && elementStyle.visibility !== 'hidden';
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}
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return false;
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};
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const noop = () => function () {};
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const getjQuery = () => {
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const {
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jQuery
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} = window;
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if (jQuery && !document.body.hasAttribute('data-bs-no-jquery')) {
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return jQuery;
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}
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return null;
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};
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const onDOMContentLoaded = callback => {
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if (document.readyState === 'loading') {
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document.addEventListener('DOMContentLoaded', callback);
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} else {
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callback();
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}
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};
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const isRTL = () => document.documentElement.dir === 'rtl';
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const defineJQueryPlugin = (name, plugin) => {
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onDOMContentLoaded(() => {
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const $ = getjQuery();
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/* istanbul ignore if */
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if ($) {
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const JQUERY_NO_CONFLICT = $.fn[name];
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$.fn[name] = plugin.jQueryInterface;
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$.fn[name].Constructor = plugin;
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$.fn[name].noConflict = () => {
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$.fn[name] = JQUERY_NO_CONFLICT;
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return plugin.jQueryInterface;
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};
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}
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});
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};
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/**
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* --------------------------------------------------------------------------
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* Bootstrap (v5.0.0-beta3): dropdown.js
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
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* --------------------------------------------------------------------------
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*/
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/**
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* ------------------------------------------------------------------------
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* Constants
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* ------------------------------------------------------------------------
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*/
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const NAME = 'dropdown';
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const DATA_KEY = 'bs.dropdown';
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const EVENT_KEY = `.${DATA_KEY}`;
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const DATA_API_KEY = '.data-api';
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const ESCAPE_KEY = 'Escape';
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const SPACE_KEY = 'Space';
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const TAB_KEY = 'Tab';
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const ARROW_UP_KEY = 'ArrowUp';
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const ARROW_DOWN_KEY = 'ArrowDown';
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const RIGHT_MOUSE_BUTTON = 2; // MouseEvent.button value for the secondary button, usually the right button
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const REGEXP_KEYDOWN = new RegExp(`${ARROW_UP_KEY}|${ARROW_DOWN_KEY}|${ESCAPE_KEY}`);
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const EVENT_HIDE = `hide${EVENT_KEY}`;
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const EVENT_HIDDEN = `hidden${EVENT_KEY}`;
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const EVENT_SHOW = `show${EVENT_KEY}`;
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const EVENT_SHOWN = `shown${EVENT_KEY}`;
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const EVENT_CLICK = `click${EVENT_KEY}`;
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const EVENT_CLICK_DATA_API = `click${EVENT_KEY}${DATA_API_KEY}`;
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const EVENT_KEYDOWN_DATA_API = `keydown${EVENT_KEY}${DATA_API_KEY}`;
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const EVENT_KEYUP_DATA_API = `keyup${EVENT_KEY}${DATA_API_KEY}`;
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const CLASS_NAME_DISABLED = 'disabled';
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const CLASS_NAME_SHOW = 'show';
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const CLASS_NAME_DROPUP = 'dropup';
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const CLASS_NAME_DROPEND = 'dropend';
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const CLASS_NAME_DROPSTART = 'dropstart';
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const CLASS_NAME_NAVBAR = 'navbar';
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const SELECTOR_DATA_TOGGLE = '[data-bs-toggle="dropdown"]';
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const SELECTOR_MENU = '.dropdown-menu';
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const SELECTOR_NAVBAR_NAV = '.navbar-nav';
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const SELECTOR_VISIBLE_ITEMS = '.dropdown-menu .dropdown-item:not(.disabled):not(:disabled)';
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const PLACEMENT_TOP = isRTL() ? 'top-end' : 'top-start';
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const PLACEMENT_TOPEND = isRTL() ? 'top-start' : 'top-end';
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const PLACEMENT_BOTTOM = isRTL() ? 'bottom-end' : 'bottom-start';
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const PLACEMENT_BOTTOMEND = isRTL() ? 'bottom-start' : 'bottom-end';
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const PLACEMENT_RIGHT = isRTL() ? 'left-start' : 'right-start';
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const PLACEMENT_LEFT = isRTL() ? 'right-start' : 'left-start';
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const Default = {
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offset: [0, 2],
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boundary: 'clippingParents',
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reference: 'toggle',
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display: 'dynamic',
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popperConfig: null
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};
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const DefaultType = {
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offset: '(array|string|function)',
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boundary: '(string|element)',
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reference: '(string|element|object)',
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display: 'string',
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popperConfig: '(null|object|function)'
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};
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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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class Dropdown extends BaseComponent__default['default'] {
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constructor(element, config) {
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super(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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} // Getters
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static get Default() {
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return Default;
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}
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static get DefaultType() {
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return DefaultType;
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}
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static get DATA_KEY() {
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return DATA_KEY;
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} // Public
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toggle() {
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if (this._element.disabled || this._element.classList.contains(CLASS_NAME_DISABLED)) {
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return;
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}
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const isActive = this._element.classList.contains(CLASS_NAME_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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this.show();
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}
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show() {
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if (this._element.disabled || this._element.classList.contains(CLASS_NAME_DISABLED) || this._menu.classList.contains(CLASS_NAME_SHOW)) {
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return;
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}
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const parent = Dropdown.getParentFromElement(this._element);
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const relatedTarget = {
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relatedTarget: this._element
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};
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const showEvent = EventHandler__default['default'].trigger(this._element, EVENT_SHOW, relatedTarget);
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if (showEvent.defaultPrevented) {
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return;
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} // Totally disable Popper for Dropdowns in Navbar
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if (this._inNavbar) {
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Manipulator__default['default'].setDataAttribute(this._menu, 'popper', 'none');
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} else {
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if (typeof Popper__namespace === 'undefined') {
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throw new TypeError('Bootstrap\'s dropdowns require Popper (https://popper.js.org)');
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}
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let 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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} else if (typeof this._config.reference === 'object') {
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referenceElement = this._config.reference;
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}
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const popperConfig = this._getPopperConfig();
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const isDisplayStatic = popperConfig.modifiers.find(modifier => modifier.name === 'applyStyles' && modifier.enabled === false);
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this._popper = Popper__namespace.createPopper(referenceElement, this._menu, popperConfig);
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if (isDisplayStatic) {
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Manipulator__default['default'].setDataAttribute(this._menu, 'popper', 'static');
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}
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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 && !parent.closest(SELECTOR_NAVBAR_NAV)) {
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[].concat(...document.body.children).forEach(elem => EventHandler__default['default'].on(elem, 'mouseover', null, noop()));
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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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this._menu.classList.toggle(CLASS_NAME_SHOW);
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this._element.classList.toggle(CLASS_NAME_SHOW);
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EventHandler__default['default'].trigger(this._element, EVENT_SHOWN, relatedTarget);
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}
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hide() {
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if (this._element.disabled || this._element.classList.contains(CLASS_NAME_DISABLED) || !this._menu.classList.contains(CLASS_NAME_SHOW)) {
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return;
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}
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const relatedTarget = {
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relatedTarget: this._element
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};
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const hideEvent = EventHandler__default['default'].trigger(this._element, EVENT_HIDE, relatedTarget);
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if (hideEvent.defaultPrevented) {
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return;
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}
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if (this._popper) {
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this._popper.destroy();
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}
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this._menu.classList.toggle(CLASS_NAME_SHOW);
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this._element.classList.toggle(CLASS_NAME_SHOW);
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Manipulator__default['default'].removeDataAttribute(this._menu, 'popper');
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EventHandler__default['default'].trigger(this._element, EVENT_HIDDEN, relatedTarget);
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}
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dispose() {
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EventHandler__default['default'].off(this._element, EVENT_KEY);
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this._menu = null;
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if (this._popper) {
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this._popper.destroy();
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this._popper = null;
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}
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super.dispose();
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}
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update() {
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this._inNavbar = this._detectNavbar();
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if (this._popper) {
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this._popper.update();
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}
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} // Private
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_addEventListeners() {
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EventHandler__default['default'].on(this._element, EVENT_CLICK, event => {
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event.preventDefault();
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this.toggle();
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});
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}
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_getConfig(config) {
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config = { ...this.constructor.Default,
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...Manipulator__default['default'].getDataAttributes(this._element),
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...config
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};
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typeCheckConfig(NAME, config, this.constructor.DefaultType);
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if (typeof config.reference === 'object' && !isElement(config.reference) && typeof config.reference.getBoundingClientRect !== 'function') {
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// Popper virtual elements require a getBoundingClientRect method
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throw new TypeError(`${NAME.toUpperCase()}: Option "reference" provided type "object" without a required "getBoundingClientRect" method.`);
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}
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return config;
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}
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_getMenuElement() {
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return SelectorEngine__default['default'].next(this._element, SELECTOR_MENU)[0];
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}
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_getPlacement() {
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const parentDropdown = this._element.parentNode;
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if (parentDropdown.classList.contains(CLASS_NAME_DROPEND)) {
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return PLACEMENT_RIGHT;
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}
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if (parentDropdown.classList.contains(CLASS_NAME_DROPSTART)) {
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return PLACEMENT_LEFT;
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} // We need to trim the value because custom properties can also include spaces
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const isEnd = getComputedStyle(this._menu).getPropertyValue('--bs-position').trim() === 'end';
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if (parentDropdown.classList.contains(CLASS_NAME_DROPUP)) {
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return isEnd ? PLACEMENT_TOPEND : PLACEMENT_TOP;
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}
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return isEnd ? PLACEMENT_BOTTOMEND : PLACEMENT_BOTTOM;
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}
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_detectNavbar() {
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return this._element.closest(`.${CLASS_NAME_NAVBAR}`) !== null;
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}
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_getOffset() {
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const {
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offset
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} = this._config;
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if (typeof offset === 'string') {
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return offset.split(',').map(val => Number.parseInt(val, 10));
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}
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if (typeof offset === 'function') {
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return popperData => offset(popperData, this._element);
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}
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return offset;
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}
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_getPopperConfig() {
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const defaultBsPopperConfig = {
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placement: this._getPlacement(),
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modifiers: [{
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name: 'preventOverflow',
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options: {
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boundary: this._config.boundary
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}
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}, {
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name: 'offset',
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options: {
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offset: this._getOffset()
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}
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}]
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}; // Disable Popper if we have a static display
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if (this._config.display === 'static') {
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defaultBsPopperConfig.modifiers = [{
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name: 'applyStyles',
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enabled: false
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}];
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}
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return { ...defaultBsPopperConfig,
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...(typeof this._config.popperConfig === 'function' ? this._config.popperConfig(defaultBsPopperConfig) : this._config.popperConfig)
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};
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} // Static
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static dropdownInterface(element, config) {
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let data = Data__default['default'].get(element, DATA_KEY);
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const _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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static 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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static clearMenus(event) {
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if (event) {
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if (event.button === RIGHT_MOUSE_BUTTON || event.type === 'keyup' && event.key !== TAB_KEY) {
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return;
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}
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if (/input|select|textarea|form/i.test(event.target.tagName)) {
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return;
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}
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}
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const toggles = SelectorEngine__default['default'].find(SELECTOR_DATA_TOGGLE);
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for (let i = 0, len = toggles.length; i < len; i++) {
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const context = Data__default['default'].get(toggles[i], DATA_KEY);
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const 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) {
|
|
continue;
|
|
}
|
|
|
|
const dropdownMenu = context._menu;
|
|
|
|
if (!toggles[i].classList.contains(CLASS_NAME_SHOW)) {
|
|
continue;
|
|
}
|
|
|
|
if (event) {
|
|
// Don't close the menu if the clicked element or one of its parents is the dropdown button
|
|
if ([context._element].some(element => event.composedPath().includes(element))) {
|
|
continue;
|
|
} // Tab navigation through the dropdown menu shouldn't close the menu
|
|
|
|
|
|
if (event.type === 'keyup' && event.key === TAB_KEY && dropdownMenu.contains(event.target)) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
const hideEvent = EventHandler__default['default'].trigger(toggles[i], EVENT_HIDE, relatedTarget);
|
|
|
|
if (hideEvent.defaultPrevented) {
|
|
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) {
|
|
[].concat(...document.body.children).forEach(elem => EventHandler__default['default'].off(elem, 'mouseover', null, noop()));
|
|
}
|
|
|
|
toggles[i].setAttribute('aria-expanded', 'false');
|
|
|
|
if (context._popper) {
|
|
context._popper.destroy();
|
|
}
|
|
|
|
dropdownMenu.classList.remove(CLASS_NAME_SHOW);
|
|
toggles[i].classList.remove(CLASS_NAME_SHOW);
|
|
Manipulator__default['default'].removeDataAttribute(dropdownMenu, 'popper');
|
|
EventHandler__default['default'].trigger(toggles[i], EVENT_HIDDEN, relatedTarget);
|
|
}
|
|
}
|
|
|
|
static getParentFromElement(element) {
|
|
return getElementFromSelector(element) || element.parentNode;
|
|
}
|
|
|
|
static 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.key === SPACE_KEY || event.key !== ESCAPE_KEY && (event.key !== ARROW_DOWN_KEY && event.key !== ARROW_UP_KEY || event.target.closest(SELECTOR_MENU)) : !REGEXP_KEYDOWN.test(event.key)) {
|
|
return;
|
|
}
|
|
|
|
event.preventDefault();
|
|
event.stopPropagation();
|
|
|
|
if (this.disabled || this.classList.contains(CLASS_NAME_DISABLED)) {
|
|
return;
|
|
}
|
|
|
|
const parent = Dropdown.getParentFromElement(this);
|
|
const isActive = this.classList.contains(CLASS_NAME_SHOW);
|
|
|
|
if (event.key === ESCAPE_KEY) {
|
|
const button = this.matches(SELECTOR_DATA_TOGGLE) ? this : SelectorEngine__default['default'].prev(this, SELECTOR_DATA_TOGGLE)[0];
|
|
button.focus();
|
|
Dropdown.clearMenus();
|
|
return;
|
|
}
|
|
|
|
if (!isActive && (event.key === ARROW_UP_KEY || event.key === ARROW_DOWN_KEY)) {
|
|
const button = this.matches(SELECTOR_DATA_TOGGLE) ? this : SelectorEngine__default['default'].prev(this, SELECTOR_DATA_TOGGLE)[0];
|
|
button.click();
|
|
return;
|
|
}
|
|
|
|
if (!isActive || event.key === SPACE_KEY) {
|
|
Dropdown.clearMenus();
|
|
return;
|
|
}
|
|
|
|
const items = SelectorEngine__default['default'].find(SELECTOR_VISIBLE_ITEMS, parent).filter(isVisible);
|
|
|
|
if (!items.length) {
|
|
return;
|
|
}
|
|
|
|
let index = items.indexOf(event.target); // Up
|
|
|
|
if (event.key === ARROW_UP_KEY && index > 0) {
|
|
index--;
|
|
} // Down
|
|
|
|
|
|
if (event.key === ARROW_DOWN_KEY && index < items.length - 1) {
|
|
index++;
|
|
} // index is -1 if the first keydown is an ArrowUp
|
|
|
|
|
|
index = index === -1 ? 0 : index;
|
|
items[index].focus();
|
|
}
|
|
|
|
}
|
|
/**
|
|
* ------------------------------------------------------------------------
|
|
* Data Api implementation
|
|
* ------------------------------------------------------------------------
|
|
*/
|
|
|
|
|
|
EventHandler__default['default'].on(document, EVENT_KEYDOWN_DATA_API, SELECTOR_DATA_TOGGLE, Dropdown.dataApiKeydownHandler);
|
|
EventHandler__default['default'].on(document, EVENT_KEYDOWN_DATA_API, SELECTOR_MENU, Dropdown.dataApiKeydownHandler);
|
|
EventHandler__default['default'].on(document, EVENT_CLICK_DATA_API, Dropdown.clearMenus);
|
|
EventHandler__default['default'].on(document, EVENT_KEYUP_DATA_API, Dropdown.clearMenus);
|
|
EventHandler__default['default'].on(document, EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE, function (event) {
|
|
event.preventDefault();
|
|
Dropdown.dropdownInterface(this);
|
|
});
|
|
/**
|
|
* ------------------------------------------------------------------------
|
|
* jQuery
|
|
* ------------------------------------------------------------------------
|
|
* add .Dropdown to jQuery only if jQuery is present
|
|
*/
|
|
|
|
defineJQueryPlugin(NAME, Dropdown);
|
|
|
|
return Dropdown;
|
|
|
|
})));
|
|
//# sourceMappingURL=dropdown.js.map
|