mirror of
https://github.com/twbs/bootstrap.git
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277 lines
9.9 KiB
JavaScript
277 lines
9.9 KiB
JavaScript
/*!
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* Bootstrap tab.js v5.3.0-alpha3 (https://getbootstrap.com/)
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* Copyright 2011-2023 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('./base-component.js'), require('./dom/event-handler.js'), require('./dom/selector-engine.js'), require('./util/index.js')) :
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typeof define === 'function' && define.amd ? define(['./base-component', './dom/event-handler', './dom/selector-engine', './util/index'], factory) :
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(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Tab = factory(global.BaseComponent, global.EventHandler, global.SelectorEngine, global.Index));
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})(this, (function (BaseComponent, EventHandler, SelectorEngine, index_js) { 'use strict';
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/**
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* --------------------------------------------------------------------------
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* Bootstrap tab.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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* Constants
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*/
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const NAME = 'tab';
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const DATA_KEY = 'bs.tab';
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const EVENT_KEY = `.${DATA_KEY}`;
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const EVENT_HIDE = `hide${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${EVENT_KEY}`;
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const EVENT_CLICK_DATA_API = `click${EVENT_KEY}`;
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const EVENT_KEYDOWN = `keydown${EVENT_KEY}`;
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const EVENT_LOAD_DATA_API = `load${EVENT_KEY}`;
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const ARROW_LEFT_KEY = 'ArrowLeft';
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const ARROW_RIGHT_KEY = 'ArrowRight';
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const ARROW_UP_KEY = 'ArrowUp';
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const ARROW_DOWN_KEY = 'ArrowDown';
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const CLASS_NAME_ACTIVE = 'active';
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const CLASS_NAME_FADE = 'fade';
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const CLASS_NAME_SHOW = 'show';
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const CLASS_DROPDOWN = 'dropdown';
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const SELECTOR_DROPDOWN_TOGGLE = '.dropdown-toggle';
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const SELECTOR_DROPDOWN_MENU = '.dropdown-menu';
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const NOT_SELECTOR_DROPDOWN_TOGGLE = ':not(.dropdown-toggle)';
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const SELECTOR_TAB_PANEL = '.list-group, .nav, [role="tablist"]';
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const SELECTOR_OUTER = '.nav-item, .list-group-item';
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const SELECTOR_INNER = `.nav-link${NOT_SELECTOR_DROPDOWN_TOGGLE}, .list-group-item${NOT_SELECTOR_DROPDOWN_TOGGLE}, [role="tab"]${NOT_SELECTOR_DROPDOWN_TOGGLE}`;
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const SELECTOR_DATA_TOGGLE = '[data-bs-toggle="tab"], [data-bs-toggle="pill"], [data-bs-toggle="list"]'; // TODO: could only be `tab` in v6
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const SELECTOR_INNER_ELEM = `${SELECTOR_INNER}, ${SELECTOR_DATA_TOGGLE}`;
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const SELECTOR_DATA_TOGGLE_ACTIVE = `.${CLASS_NAME_ACTIVE}[data-bs-toggle="tab"], .${CLASS_NAME_ACTIVE}[data-bs-toggle="pill"], .${CLASS_NAME_ACTIVE}[data-bs-toggle="list"]`;
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/**
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* Class definition
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*/
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class Tab extends BaseComponent {
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constructor(element) {
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super(element);
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this._parent = this._element.closest(SELECTOR_TAB_PANEL);
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if (!this._parent) {
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return;
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// TODO: should throw exception in v6
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// throw new TypeError(`${element.outerHTML} has not a valid parent ${SELECTOR_INNER_ELEM}`)
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}
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// Set up initial aria attributes
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this._setInitialAttributes(this._parent, this._getChildren());
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EventHandler.on(this._element, EVENT_KEYDOWN, event => this._keydown(event));
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}
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// Getters
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static get NAME() {
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return NAME;
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}
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// Public
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show() {
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// Shows this elem and deactivate the active sibling if exists
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const innerElem = this._element;
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if (this._elemIsActive(innerElem)) {
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return;
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}
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// Search for active tab on same parent to deactivate it
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const active = this._getActiveElem();
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const hideEvent = active ? EventHandler.trigger(active, EVENT_HIDE, {
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relatedTarget: innerElem
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}) : null;
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const showEvent = EventHandler.trigger(innerElem, EVENT_SHOW, {
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relatedTarget: active
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});
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if (showEvent.defaultPrevented || hideEvent && hideEvent.defaultPrevented) {
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return;
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}
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this._deactivate(active, innerElem);
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this._activate(innerElem, active);
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}
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// Private
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_activate(element, relatedElem) {
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if (!element) {
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return;
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}
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element.classList.add(CLASS_NAME_ACTIVE);
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this._activate(SelectorEngine.getElementFromSelector(element)); // Search and activate/show the proper section
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const complete = () => {
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if (element.getAttribute('role') !== 'tab') {
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element.classList.add(CLASS_NAME_SHOW);
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return;
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}
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element.removeAttribute('tabindex');
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element.setAttribute('aria-selected', true);
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this._toggleDropDown(element, true);
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EventHandler.trigger(element, EVENT_SHOWN, {
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relatedTarget: relatedElem
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});
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};
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this._queueCallback(complete, element, element.classList.contains(CLASS_NAME_FADE));
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}
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_deactivate(element, relatedElem) {
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if (!element) {
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return;
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}
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element.classList.remove(CLASS_NAME_ACTIVE);
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element.blur();
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this._deactivate(SelectorEngine.getElementFromSelector(element)); // Search and deactivate the shown section too
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const complete = () => {
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if (element.getAttribute('role') !== 'tab') {
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element.classList.remove(CLASS_NAME_SHOW);
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return;
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}
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element.setAttribute('aria-selected', false);
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element.setAttribute('tabindex', '-1');
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this._toggleDropDown(element, false);
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EventHandler.trigger(element, EVENT_HIDDEN, {
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relatedTarget: relatedElem
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});
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};
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this._queueCallback(complete, element, element.classList.contains(CLASS_NAME_FADE));
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}
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_keydown(event) {
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if (![ARROW_LEFT_KEY, ARROW_RIGHT_KEY, ARROW_UP_KEY, ARROW_DOWN_KEY].includes(event.key)) {
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return;
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}
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event.stopPropagation(); // stopPropagation/preventDefault both added to support up/down keys without scrolling the page
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event.preventDefault();
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const isNext = [ARROW_RIGHT_KEY, ARROW_DOWN_KEY].includes(event.key);
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const nextActiveElement = index_js.getNextActiveElement(this._getChildren().filter(element => !index_js.isDisabled(element)), event.target, isNext, true);
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if (nextActiveElement) {
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nextActiveElement.focus({
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preventScroll: true
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});
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Tab.getOrCreateInstance(nextActiveElement).show();
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}
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}
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_getChildren() {
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// collection of inner elements
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return SelectorEngine.find(SELECTOR_INNER_ELEM, this._parent);
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}
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_getActiveElem() {
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return this._getChildren().find(child => this._elemIsActive(child)) || null;
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}
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_setInitialAttributes(parent, children) {
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this._setAttributeIfNotExists(parent, 'role', 'tablist');
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for (const child of children) {
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this._setInitialAttributesOnChild(child);
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}
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}
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_setInitialAttributesOnChild(child) {
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child = this._getInnerElement(child);
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const isActive = this._elemIsActive(child);
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const outerElem = this._getOuterElement(child);
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child.setAttribute('aria-selected', isActive);
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if (outerElem !== child) {
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this._setAttributeIfNotExists(outerElem, 'role', 'presentation');
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}
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if (!isActive) {
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child.setAttribute('tabindex', '-1');
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}
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this._setAttributeIfNotExists(child, 'role', 'tab');
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// set attributes to the related panel too
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this._setInitialAttributesOnTargetPanel(child);
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}
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_setInitialAttributesOnTargetPanel(child) {
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const target = SelectorEngine.getElementFromSelector(child);
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if (!target) {
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return;
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}
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this._setAttributeIfNotExists(target, 'role', 'tabpanel');
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if (child.id) {
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this._setAttributeIfNotExists(target, 'aria-labelledby', `${child.id}`);
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}
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}
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_toggleDropDown(element, open) {
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const outerElem = this._getOuterElement(element);
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if (!outerElem.classList.contains(CLASS_DROPDOWN)) {
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return;
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}
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const toggle = (selector, className) => {
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const element = SelectorEngine.findOne(selector, outerElem);
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if (element) {
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element.classList.toggle(className, open);
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}
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};
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toggle(SELECTOR_DROPDOWN_TOGGLE, CLASS_NAME_ACTIVE);
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toggle(SELECTOR_DROPDOWN_MENU, CLASS_NAME_SHOW);
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outerElem.setAttribute('aria-expanded', open);
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}
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_setAttributeIfNotExists(element, attribute, value) {
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if (!element.hasAttribute(attribute)) {
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element.setAttribute(attribute, value);
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}
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}
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_elemIsActive(elem) {
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return elem.classList.contains(CLASS_NAME_ACTIVE);
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}
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// Try to get the inner element (usually the .nav-link)
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_getInnerElement(elem) {
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return elem.matches(SELECTOR_INNER_ELEM) ? elem : SelectorEngine.findOne(SELECTOR_INNER_ELEM, elem);
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}
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// Try to get the outer element (usually the .nav-item)
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_getOuterElement(elem) {
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return elem.closest(SELECTOR_OUTER) || elem;
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}
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// Static
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static jQueryInterface(config) {
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return this.each(function () {
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const data = Tab.getOrCreateInstance(this);
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if (typeof config !== 'string') {
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return;
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}
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if (data[config] === undefined || config.startsWith('_') || config === 'constructor') {
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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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}
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/**
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* Data API implementation
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*/
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EventHandler.on(document, EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE, function (event) {
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if (['A', 'AREA'].includes(this.tagName)) {
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event.preventDefault();
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}
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if (index_js.isDisabled(this)) {
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return;
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}
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Tab.getOrCreateInstance(this).show();
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});
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/**
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* Initialize on focus
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*/
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EventHandler.on(window, EVENT_LOAD_DATA_API, () => {
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for (const element of SelectorEngine.find(SELECTOR_DATA_TOGGLE_ACTIVE)) {
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Tab.getOrCreateInstance(element);
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}
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});
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/**
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* jQuery
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*/
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index_js.defineJQueryPlugin(Tab);
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return Tab;
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}));
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//# sourceMappingURL=tab.js.map
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