1 /* ========================================================================
2 * Bootstrap: collapse.js v3.3.7
3 * http://getbootstrap.com/javascript/#collapse
4 * ========================================================================
5 * Copyright 2011-2016 Twitter, Inc.
6 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
7 * ======================================================================== */
9 /* jshint latedef: false */
14 // COLLAPSE PUBLIC CLASS DEFINITION
15 // ================================
17 var Collapse = function (element, options) {
18 this.$element = $(element)
19 this.options = $.extend({}, Collapse.DEFAULTS, options)
20 this.$trigger = $('[data-toggle="collapse"][href="#' + element.id + '"],' +
21 '[data-toggle="collapse"][data-target="#' + element.id + '"]')
22 this.transitioning = null
24 if (this.options.parent) {
25 this.$parent = this.getParent()
27 this.addAriaAndCollapsedClass(this.$element, this.$trigger)
30 if (this.options.toggle) this.toggle()
33 Collapse.VERSION = '3.3.7'
35 Collapse.TRANSITION_DURATION = 350
41 Collapse.prototype.dimension = function () {
42 var hasWidth = this.$element.hasClass('width')
43 return hasWidth ? 'width' : 'height'
46 Collapse.prototype.show = function () {
47 if (this.transitioning || this.$element.hasClass('in')) return
50 var actives = this.$parent && this.$parent.children('.panel').children('.in, .collapsing')
52 if (actives && actives.length) {
53 activesData = actives.data('bs.collapse')
54 if (activesData && activesData.transitioning) return
57 var startEvent = $.Event('show.bs.collapse')
58 this.$element.trigger(startEvent)
59 if (startEvent.isDefaultPrevented()) return
61 if (actives && actives.length) {
62 Plugin.call(actives, 'hide')
63 activesData || actives.data('bs.collapse', null)
66 var dimension = this.dimension()
69 .removeClass('collapse')
70 .addClass('collapsing')[dimension](0)
71 .attr('aria-expanded', true)
74 .removeClass('collapsed')
75 .attr('aria-expanded', true)
77 this.transitioning = 1
79 var complete = function () {
81 .removeClass('collapsing')
82 .addClass('collapse in')[dimension]('')
83 this.transitioning = 0
85 .trigger('shown.bs.collapse')
88 if (!$.support.transition) return complete.call(this)
90 var scrollSize = $.camelCase(['scroll', dimension].join('-'))
93 .one('bsTransitionEnd', $.proxy(complete, this))
94 .emulateTransitionEnd(Collapse.TRANSITION_DURATION)[dimension](this.$element[0][scrollSize])
97 Collapse.prototype.hide = function () {
98 if (this.transitioning || !this.$element.hasClass('in')) return
100 var startEvent = $.Event('hide.bs.collapse')
101 this.$element.trigger(startEvent)
102 if (startEvent.isDefaultPrevented()) return
104 var dimension = this.dimension()
106 this.$element[dimension](this.$element[dimension]())[0].offsetHeight
109 .addClass('collapsing')
110 .removeClass('collapse in')
111 .attr('aria-expanded', false)
114 .addClass('collapsed')
115 .attr('aria-expanded', false)
117 this.transitioning = 1
119 var complete = function () {
120 this.transitioning = 0
122 .removeClass('collapsing')
123 .addClass('collapse')
124 .trigger('hidden.bs.collapse')
127 if (!$.support.transition) return complete.call(this)
131 .one('bsTransitionEnd', $.proxy(complete, this))
132 .emulateTransitionEnd(Collapse.TRANSITION_DURATION)
135 Collapse.prototype.toggle = function () {
136 this[this.$element.hasClass('in') ? 'hide' : 'show']()
139 Collapse.prototype.getParent = function () {
140 return $(this.options.parent)
141 .find('[data-toggle="collapse"][data-parent="' + this.options.parent + '"]')
142 .each($.proxy(function (i, element) {
143 var $element = $(element)
144 this.addAriaAndCollapsedClass(getTargetFromTrigger($element), $element)
149 Collapse.prototype.addAriaAndCollapsedClass = function ($element, $trigger) {
150 var isOpen = $element.hasClass('in')
152 $element.attr('aria-expanded', isOpen)
154 .toggleClass('collapsed', !isOpen)
155 .attr('aria-expanded', isOpen)
158 function getTargetFromTrigger($trigger) {
160 var target = $trigger.attr('data-target')
161 || (href = $trigger.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '') // strip for ie7
167 // COLLAPSE PLUGIN DEFINITION
168 // ==========================
170 function Plugin(option) {
171 return this.each(function () {
173 var data = $this.data('bs.collapse')
174 var options = $.extend({}, Collapse.DEFAULTS, $this.data(), typeof option == 'object' && option)
176 if (!data && options.toggle && /show|hide/.test(option)) options.toggle = false
177 if (!data) $this.data('bs.collapse', (data = new Collapse(this, options)))
178 if (typeof option == 'string') data[option]()
182 var old = $.fn.collapse
184 $.fn.collapse = Plugin
185 $.fn.collapse.Constructor = Collapse
188 // COLLAPSE NO CONFLICT
189 // ====================
191 $.fn.collapse.noConflict = function () {
200 $(document).on('click.bs.collapse.data-api', '[data-toggle="collapse"]', function (e) {
203 if (!$this.attr('data-target')) e.preventDefault()
205 var $target = getTargetFromTrigger($this)
206 var data = $target.data('bs.collapse')
207 var option = data ? 'toggle' : $this.data()
209 Plugin.call($target, option)