1/* =============================================================
2 * bootstrap-collapse.js v2.3.1
3 * http://twitter.github.com/bootstrap/javascript.html#collapse
4 * =============================================================
5 * Copyright 2012 Twitter, Inc.
6 *
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============================================================ */
19
20
21!function ($) {
22
23  "use strict"; // jshint ;_;
24
25
26 /* COLLAPSE PUBLIC CLASS DEFINITION
27  * ================================ */
28
29  var Collapse = function (element, options) {
30    this.$element = $(element)
31    this.options = $.extend({}, $.fn.collapse.defaults, options)
32
33    if (this.options.parent) {
34      this.$parent = $(this.options.parent)
35    }
36
37    this.options.toggle && this.toggle()
38  }
39
40  Collapse.prototype = {
41
42    constructor: Collapse
43
44  , dimension: function () {
45      var hasWidth = this.$element.hasClass('width')
46      return hasWidth ? 'width' : 'height'
47    }
48
49  , show: function () {
50      var dimension
51        , scroll
52        , actives
53        , hasData
54
55      if (this.transitioning || this.$element.hasClass('in')) return
56
57      dimension = this.dimension()
58      scroll = $.camelCase(['scroll', dimension].join('-'))
59      actives = this.$parent && this.$parent.find('> .accordion-group > .in')
60
61      if (actives && actives.length) {
62        hasData = actives.data('collapse')
63        if (hasData && hasData.transitioning) return
64        actives.collapse('hide')
65        hasData || actives.data('collapse', null)
66      }
67
68      this.$element[dimension](0)
69      this.transition('addClass', $.Event('show'), 'shown')
70      $.support.transition && this.$element[dimension](this.$element[0][scroll])
71    }
72
73  , hide: function () {
74      var dimension
75      if (this.transitioning || !this.$element.hasClass('in')) return
76      dimension = this.dimension()
77      this.reset(this.$element[dimension]())
78      this.transition('removeClass', $.Event('hide'), 'hidden')
79      this.$element[dimension](0)
80    }
81
82  , reset: function (size) {
83      var dimension = this.dimension()
84
85      this.$element
86        .removeClass('collapse')
87        [dimension](size || 'auto')
88        [0].offsetWidth
89
90      this.$element[size !== null ? 'addClass' : 'removeClass']('collapse')
91
92      return this
93    }
94
95  , transition: function (method, startEvent, completeEvent) {
96      var that = this
97        , complete = function () {
98            if (startEvent.type == 'show') that.reset()
99            that.transitioning = 0
100            that.$element.trigger(completeEvent)
101          }
102
103      this.$element.trigger(startEvent)
104
105      if (startEvent.isDefaultPrevented()) return
106
107      this.transitioning = 1
108
109      this.$element[method]('in')
110
111      $.support.transition && this.$element.hasClass('collapse') ?
112        this.$element.one($.support.transition.end, complete) :
113        complete()
114    }
115
116  , toggle: function () {
117      this[this.$element.hasClass('in') ? 'hide' : 'show']()
118    }
119
120  }
121
122
123 /* COLLAPSE PLUGIN DEFINITION
124  * ========================== */
125
126  var old = $.fn.collapse
127
128  $.fn.collapse = function (option) {
129    return this.each(function () {
130      var $this = $(this)
131        , data = $this.data('collapse')
132        , options = $.extend({}, $.fn.collapse.defaults, $this.data(), typeof option == 'object' && option)
133      if (!data) $this.data('collapse', (data = new Collapse(this, options)))
134      if (typeof option == 'string') data[option]()
135    })
136  }
137
138  $.fn.collapse.defaults = {
139    toggle: true
140  }
141
142  $.fn.collapse.Constructor = Collapse
143
144
145 /* COLLAPSE NO CONFLICT
146  * ==================== */
147
148  $.fn.collapse.noConflict = function () {
149    $.fn.collapse = old
150    return this
151  }
152
153
154 /* COLLAPSE DATA-API
155  * ================= */
156
157  $(document).on('click.collapse.data-api', '[data-toggle=collapse]', function (e) {
158    var $this = $(this), href
159      , target = $this.attr('data-target')
160        || e.preventDefault()
161        || (href = $this.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '') //strip for ie7
162      , option = $(target).data('collapse') ? 'toggle' : $this.data()
163    $this[$(target).hasClass('in') ? 'addClass' : 'removeClass']('collapsed')
164    $(target).collapse(option)
165  })
166
167}(window.jQuery);