https://xerial.org/assets/js/bootstrap-collapse.js

1/* =============================================================
2 * bootstrap-collapse.js v2.0.1
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!function( $ ){
21
22  "use strict"
23
24  var Collapse = function ( element, options ) {
25  	this.$element = $(element)
26    this.options = $.extend({}, $.fn.collapse.defaults, options)
27
28    if (this.options["parent"]) {
29      this.$parent = $(this.options["parent"])
30    }
31
32    this.options.toggle && this.toggle()
33  }
34
35  Collapse.prototype = {
36
37    constructor: Collapse
38
39  , dimension: function () {
40      var hasWidth = this.$element.hasClass('width')
41      return hasWidth ? 'width' : 'height'
42    }
43
44  , show: function () {
45      var dimension = this.dimension()
46        , scroll = $.camelCase(['scroll', dimension].join('-'))
47        , actives = this.$parent && this.$parent.find('.in')
48        , hasData
49
50      if (actives && actives.length) {
51        hasData = actives.data('collapse')
52        actives.collapse('hide')
53        hasData || actives.data('collapse', null)
54      }
55
56      this.$element[dimension](0)
57      this.transition('addClass', 'show', 'shown')
58      this.$element[dimension](this.$element[0][scroll])
59
60    }
61
62  , hide: function () {
63      var dimension = this.dimension()
64      this.reset(this.$element[dimension]())
65      this.transition('removeClass', 'hide', 'hidden')
66      this.$element[dimension](0)
67    }
68
69  , reset: function ( size ) {
70      var dimension = this.dimension()
71
72      this.$element
73        .removeClass('collapse')
74        [dimension](size || 'auto')
75        [0].offsetWidth
76
77      this.$element.addClass('collapse')
78    }
79
80  , transition: function ( method, startEvent, completeEvent ) {
81      var that = this
82        , complete = function () {
83            if (startEvent == 'show') that.reset()
84            that.$element.trigger(completeEvent)
85          }
86
87      this.$element
88        .trigger(startEvent)
89        [method]('in')
90
91      $.support.transition && this.$element.hasClass('collapse') ?
92        this.$element.one($.support.transition.end, complete) :
93        complete()
94  	}
95
96  , toggle: function () {
97      this[this.$element.hasClass('in') ? 'hide' : 'show']()
98  	}
99
100  }
101
102  /* COLLAPSIBLE PLUGIN DEFINITION
103  * ============================== */
104
105  $.fn.collapse = function ( option ) {
106    return this.each(function () {
107      var $this = $(this)
108        , data = $this.data('collapse')
109        , options = typeof option == 'object' && option
110      if (!data) $this.data('collapse', (data = new Collapse(this, options)))
111      if (typeof option == 'string') data[option]()
112    })
113  }
114
115  $.fn.collapse.defaults = {
116    toggle: true
117  }
118
119  $.fn.collapse.Constructor = Collapse
120
121
122 /* COLLAPSIBLE DATA-API
123  * ==================== */
124
125  $(function () {
126    $('body').on('click.collapse.data-api', '[data-toggle=collapse]', function ( e ) {
127      var $this = $(this), href
128        , target = $this.attr('data-target')
129          || e.preventDefault()
130          || (href = $this.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '') //strip for ie7
131        , option = $(target).data('collapse') ? 'toggle' : $this.data()
132      $(target).collapse(option)
133    })
134  })
135
136}( window.jQuery );