mirror of
https://github.com/twbs/bootstrap.git
synced 2022-11-09 12:25:43 -05:00
455 lines
9.9 KiB
JavaScript
455 lines
9.9 KiB
JavaScript
/** =======================================================================
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* Bootstrap: collapse.js v4.0.0
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* http://getbootstrap.com/javascript/#collapse
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* ========================================================================
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* Copyright 2011-2015 Twitter, Inc.
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
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* ========================================================================
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* @fileoverview - Bootstrap's collapse plugin. Flexible support for
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* collapsible components like accordions and navigation.
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*
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* Public Methods & Properties:
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*
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* + $.carousel
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* + $.carousel.noConflict
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* + $.carousel.Constructor
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* + $.carousel.Constructor.VERSION
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* + $.carousel.Constructor.Defaults
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* + $.carousel.Constructor.Defaults.toggle
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* + $.carousel.Constructor.Defaults.trigger
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* + $.carousel.Constructor.Defaults.parent
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* + $.carousel.Constructor.prototype.toggle
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* + $.carousel.Constructor.prototype.show
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* + $.carousel.Constructor.prototype.hide
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*
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* ========================================================================
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*/
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'use strict';
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/**
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* Our collapse class.
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* @param {Element!} element
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* @param {Object=} opt_config
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* @constructor
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*/
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var Collapse = function (element, opt_config) {
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/** @private {Element} */
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this._element = element
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/** @private {Object} */
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this._config = $.extend({}, Collapse['Defaults'], opt_config)
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/** @private {Element} */
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this._trigger = typeof this._config['trigger'] == 'string' ?
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$(this._config['trigger'])[0] : this._config['trigger']
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/** @private {boolean} */
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this._isTransitioning = false
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/** @private {?Element} */
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this._parent = this._config['parent'] ? this._getParent() : null
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if (!this._config['parent']) {
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this._addAriaAndCollapsedClass(this._element, this._trigger)
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}
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if (this._config['toggle']) {
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this['toggle']()
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}
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}
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/**
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* @const
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* @type {string}
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*/
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Collapse['VERSION'] = '4.0.0'
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/**
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* @const
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* @type {Object}
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*/
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Collapse['Defaults'] = {
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'toggle' : true,
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'trigger' : '[data-toggle="collapse"]',
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'parent' : null
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}
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/**
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* @const
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* @type {string}
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* @private
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*/
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Collapse._NAME = 'collapse'
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/**
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* @const
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* @type {string}
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* @private
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*/
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Collapse._DATA_KEY = 'bs.collapse'
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/**
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* @const
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* @type {number}
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* @private
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*/
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Collapse._TRANSITION_DURATION = 600
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/**
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* @const
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* @type {Function}
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* @private
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*/
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Collapse._JQUERY_NO_CONFLICT = $.fn[Collapse._NAME]
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/**
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* @const
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* @enum {string}
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* @private
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*/
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Collapse._Event = {
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SHOW : 'show.bs.collapse',
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SHOWN : 'shown.bs.collapse',
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HIDE : 'hide.bs.collapse',
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HIDDEN : 'hidden.bs.collapse'
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}
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/**
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* @const
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* @enum {string}
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* @private
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*/
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Collapse._ClassName = {
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IN : 'in',
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COLLAPSE : 'collapse',
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COLLAPSING : 'collapsing',
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COLLAPSED : 'collapsed'
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}
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/**
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* @const
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* @enum {string}
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* @private
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*/
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Collapse._Dimension = {
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WIDTH : 'width',
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HEIGHT : 'height'
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}
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/**
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* @const
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* @enum {string}
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* @private
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*/
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Collapse._Selector = {
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ACTIVES : '.panel > .in, .panel > .collapsing'
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}
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/**
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* Provides the jQuery Interface for the alert component.
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* @param {Object|string=} opt_config
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* @this {jQuery}
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* @return {jQuery}
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* @private
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*/
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Collapse._jQueryInterface = function (opt_config) {
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return this.each(function () {
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var $this = $(this)
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var data = $this.data(Collapse._DATA_KEY)
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var config = $.extend({}, Collapse['Defaults'], $this.data(), typeof opt_config == 'object' && opt_config)
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if (!data && config['toggle'] && opt_config == 'show') {
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config['toggle'] = false
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}
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if (!data) {
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data = new Collapse(this, config)
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$this.data(Collapse._DATA_KEY, data)
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}
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if (typeof opt_config == 'string') {
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data[opt_config]()
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}
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})
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}
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/**
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* Function for getting target element from element
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* @return {Element}
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* @private
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*/
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Collapse._getTargetFromElement = function (element) {
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var selector = Bootstrap.getSelectorFromElement(element)
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return selector ? $(selector)[0] : null
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}
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/**
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* Toggles the collapse element based on the presence of the 'in' class
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*/
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Collapse.prototype['toggle'] = function () {
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if ($(this._element).hasClass(Collapse._ClassName.IN)) {
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this['hide']()
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} else {
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this['show']()
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}
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}
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/**
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* Show's the collapsing element
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*/
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Collapse.prototype['show'] = function () {
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if (this._isTransitioning || $(this._element).hasClass(Collapse._ClassName.IN)) {
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return
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}
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var activesData, actives
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if (this._parent) {
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actives = $.makeArray($(Collapse._Selector.ACTIVES))
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if (!actives.length) {
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actives = null
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}
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}
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if (actives) {
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activesData = $(actives).data(Collapse._DATA_KEY)
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if (activesData && activesData._isTransitioning) {
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return
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}
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}
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var startEvent = $.Event(Collapse._Event.SHOW)
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$(this._element).trigger(startEvent)
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if (startEvent.isDefaultPrevented()) {
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return
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}
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if (actives) {
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Collapse._jQueryInterface.call($(actives), 'hide')
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if (!activesData) {
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$(actives).data(Collapse._DATA_KEY, null)
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}
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}
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var dimension = this._getDimension()
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$(this._element)
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.removeClass(Collapse._ClassName.COLLAPSE)
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.addClass(Collapse._ClassName.COLLAPSING)
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this._element.style[dimension] = 0
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this._element.setAttribute('aria-expanded', true)
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if (this._trigger) {
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$(this._trigger).removeClass(Collapse._ClassName.COLLAPSED)
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this._trigger.setAttribute('aria-expanded', true)
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}
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this['setTransitioning'](true)
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var complete = function () {
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$(this._element)
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.removeClass(Collapse._ClassName.COLLAPSING)
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.addClass(Collapse._ClassName.COLLAPSE)
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.addClass(Collapse._ClassName.IN)
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this._element.style[dimension] = ''
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this['setTransitioning'](false)
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$(this._element).trigger(Collapse._Event.SHOWN)
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}.bind(this)
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if (!Bootstrap.transition) {
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complete()
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return
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}
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var scrollSize = 'scroll' + (dimension[0].toUpperCase() + dimension.slice(1))
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$(this._element)
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.one(Bootstrap.TRANSITION_END, complete)
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.emulateTransitionEnd(Collapse._TRANSITION_DURATION)
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this._element.style[dimension] = this._element[scrollSize] + 'px'
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}
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/**
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* Hides's the collapsing element
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*/
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Collapse.prototype['hide'] = function () {
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if (this._isTransitioning || !$(this._element).hasClass(Collapse._ClassName.IN)) {
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return
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}
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var startEvent = $.Event(Collapse._Event.HIDE)
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$(this._element).trigger(startEvent)
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if (startEvent.isDefaultPrevented()) return
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var dimension = this._getDimension()
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var offsetDimension = dimension === Collapse._Dimension.WIDTH ?
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'offsetWidth' : 'offsetHeight'
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this._element.style[dimension] = this._element[offsetDimension] + 'px'
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Bootstrap.reflow(this._element)
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$(this._element)
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.addClass(Collapse._ClassName.COLLAPSING)
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.removeClass(Collapse._ClassName.COLLAPSE)
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.removeClass(Collapse._ClassName.IN)
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this._element.setAttribute('aria-expanded', false)
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if (this._trigger) {
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$(this._trigger).addClass(Collapse._ClassName.COLLAPSED)
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this._trigger.setAttribute('aria-expanded', false)
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}
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this['setTransitioning'](true)
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var complete = function () {
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this['setTransitioning'](false)
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$(this._element)
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.removeClass(Collapse._ClassName.COLLAPSING)
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.addClass(Collapse._ClassName.COLLAPSE)
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.trigger(Collapse._Event.HIDDEN)
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}.bind(this)
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this._element.style[dimension] = 0
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if (!Bootstrap.transition) {
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return complete()
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}
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$(this._element)
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.one(Bootstrap.TRANSITION_END, complete)
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.emulateTransitionEnd(Collapse._TRANSITION_DURATION)
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}
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/**
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* @param {boolean} isTransitioning
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*/
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Collapse.prototype['setTransitioning'] = function (isTransitioning) {
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this._isTransitioning = isTransitioning
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}
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/**
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* Returns the collapsing dimension
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* @return {string}
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* @private
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*/
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Collapse.prototype._getDimension = function () {
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var hasWidth = $(this._element).hasClass(Collapse._Dimension.WIDTH)
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return hasWidth ? Collapse._Dimension.WIDTH : Collapse._Dimension.HEIGHT
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}
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/**
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* Returns the parent element
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* @return {Element}
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* @private
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*/
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Collapse.prototype._getParent = function () {
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var selector = '[data-toggle="collapse"][data-parent="' + this._config['parent'] + '"]'
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var parent = $(this._config['parent'])[0]
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var elements = /** @type {Array.<Element>} */ ($.makeArray($(parent).find(selector)))
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for (var i = 0; i < elements.length; i++) {
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this._addAriaAndCollapsedClass(Collapse._getTargetFromElement(elements[i]), elements[i])
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}
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return parent
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}
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/**
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* Returns the parent element
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* @param {Element} element
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* @param {Element} trigger
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* @private
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*/
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Collapse.prototype._addAriaAndCollapsedClass = function (element, trigger) {
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if (element) {
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var isOpen = $(element).hasClass(Collapse._ClassName.IN)
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element.setAttribute('aria-expanded', isOpen)
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if (trigger) {
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trigger.setAttribute('aria-expanded', isOpen)
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$(trigger).toggleClass(Collapse._ClassName.COLLAPSED, !isOpen)
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}
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}
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}
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/**
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* ------------------------------------------------------------------------
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* jQuery Interface + noConflict implementaiton
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* ------------------------------------------------------------------------
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*/
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/**
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* @const
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* @type {Function}
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*/
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$.fn[Collapse._NAME] = Collapse._jQueryInterface
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/**
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* @const
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* @type {Function}
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*/
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$.fn[Collapse._NAME]['Constructor'] = Collapse
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/**
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* @const
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* @type {Function}
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*/
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$.fn[Collapse._NAME]['noConflict'] = function () {
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$.fn[Collapse._NAME] = Collapse._JQUERY_NO_CONFLICT
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return this
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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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*/
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$(document).on('click.bs.collapse.data-api', '[data-toggle="collapse"]', function (event) {
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event.preventDefault()
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var target = Collapse._getTargetFromElement(this)
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var data = $(target).data(Collapse._DATA_KEY)
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var config = data ? 'toggle' : $.extend({}, $(this).data(), { trigger: this })
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Collapse._jQueryInterface.call($(target), config)
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})
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