1 /* ========================================================================
2 * Bootstrap: collapse.js v3.3.2
3 * http://getbootstrap.com/javascript/#collapse
4 * ========================================================================
5 * Copyright 2011-2015 Twitter, Inc.
6 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
7 * ======================================================================== */
13 // COLLAPSE PUBLIC CLASS DEFINITION
14 // ================================
16 var Collapse = function (element, options) {
17 this.$element = $(element)
18 this.options = $.extend({}, Collapse.DEFAULTS, options)
19 this.$trigger = $(this.options.trigger).filter('[href="#' + element.id + '"], [data-target="#' + element.id + '"]')
20 this.transitioning = null
22 if (this.options.parent) {
23 this.$parent = this.getParent()
25 this.addAriaAndCollapsedClass(this.$element, this.$trigger)
28 if (this.options.toggle) this.toggle()
31 Collapse.VERSION = '3.3.2'
33 Collapse.TRANSITION_DURATION = 350
37 trigger: '[data-toggle="collapse"]'
40 Collapse.prototype.dimension = function () {
41 var hasWidth = this.$element.hasClass('width')
42 return hasWidth ? 'width' : 'height'
45 Collapse.prototype.show = function () {
46 if (this.transitioning || this.$element.hasClass('in')) return
49 var actives = this.$parent && this.$parent.children('.panel').children('.in, .collapsing')
51 if (actives && actives.length) {
52 activesData = actives.data('bs.collapse')
53 if (activesData && activesData.transitioning) return
56 var startEvent = $.Event('show.bs.collapse')
57 this.$element.trigger(startEvent)
58 if (startEvent.isDefaultPrevented()) return
60 if (actives && actives.length) {
61 Plugin.call(actives, 'hide')
62 activesData || actives.data('bs.collapse', null)
65 var dimension = this.dimension()
68 .removeClass('collapse')
69 .addClass('collapsing')[dimension](0)
70 .attr('aria-expanded', true)
73 .removeClass('collapsed')
74 .attr('aria-expanded', true)
76 this.transitioning = 1
78 var complete = function () {
80 .removeClass('collapsing')
81 .addClass('collapse in')[dimension]('')
82 this.transitioning = 0
84 .trigger('shown.bs.collapse')
87 if (!$.support.transition) return complete.call(this)
89 var scrollSize = $.camelCase(['scroll', dimension].join('-'))
92 .one('bsTransitionEnd', $.proxy(complete, this))
93 .emulateTransitionEnd(Collapse.TRANSITION_DURATION)[dimension](this.$element[0][scrollSize])
96 Collapse.prototype.hide = function () {
97 if (this.transitioning || !this.$element.hasClass('in')) return
99 var startEvent = $.Event('hide.bs.collapse')
100 this.$element.trigger(startEvent)
101 if (startEvent.isDefaultPrevented()) return
103 var dimension = this.dimension()
105 this.$element[dimension](this.$element[dimension]())[0].offsetHeight
108 .addClass('collapsing')
109 .removeClass('collapse in')
110 .attr('aria-expanded', false)
113 .addClass('collapsed')
114 .attr('aria-expanded', false)
116 this.transitioning = 1
118 var complete = function () {
119 this.transitioning = 0
121 .removeClass('collapsing')
122 .addClass('collapse')
123 .trigger('hidden.bs.collapse')
126 if (!$.support.transition) return complete.call(this)
130 .one('bsTransitionEnd', $.proxy(complete, this))
131 .emulateTransitionEnd(Collapse.TRANSITION_DURATION)
134 Collapse.prototype.toggle = function () {
135 this[this.$element.hasClass('in') ? 'hide' : 'show']()
138 Collapse.prototype.getParent = function () {
139 return $(this.options.parent)
140 .find('[data-toggle="collapse"][data-parent="' + this.options.parent + '"]')
141 .each($.proxy(function (i, element) {
142 var $element = $(element)
143 this.addAriaAndCollapsedClass(getTargetFromTrigger($element), $element)
148 Collapse.prototype.addAriaAndCollapsedClass = function ($element, $trigger) {
149 var isOpen = $element.hasClass('in')
151 $element.attr('aria-expanded', isOpen)
153 .toggleClass('collapsed', !isOpen)
154 .attr('aria-expanded', isOpen)
157 function getTargetFromTrigger($trigger) {
159 var target = $trigger.attr('data-target')
160 || (href = $trigger.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '') // strip for ie7
166 // COLLAPSE PLUGIN DEFINITION
167 // ==========================
169 function Plugin(option) {
170 return this.each(function () {
172 var data = $this.data('bs.collapse')
173 var options = $.extend({}, Collapse.DEFAULTS, $this.data(), typeof option == 'object' && option)
175 if (!data && options.toggle && option == 'show') options.toggle = false
176 if (!data) $this.data('bs.collapse', (data = new Collapse(this, options)))
177 if (typeof option == 'string') data[option]()
181 var old = $.fn.collapse
183 $.fn.collapse = Plugin
184 $.fn.collapse.Constructor = Collapse
187 // COLLAPSE NO CONFLICT
188 // ====================
190 $.fn.collapse.noConflict = function () {
199 $(document).on('click.bs.collapse.data-api', '[data-toggle="collapse"]', function (e) {
202 if (!$this.attr('data-target')) e.preventDefault()
204 var $target = getTargetFromTrigger($this)
205 var data = $target.data('bs.collapse')
206 var option = data ? 'toggle' : $.extend({}, $this.data(), { trigger: this })
208 Plugin.call($target, option)