/* =============================================================

  * bootstrap-collapse.js v2.3.1

  * http://twitter.github.com/bootstrap/javascript.html#collapse

  * =============================================================

  * Copyright 2012 Twitter, Inc.

  *

  * Licensed under the Apache License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  *

  * http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  * ============================================================ */

 !function ($) {

   "use strict"; // jshint ;_;

  /* COLLAPSE PUBLIC CLASS DEFINITION

   * ================================ */

   var Collapse = function (element, options) {

     this.$element = $(element)

     this.options = $.extend({}, $.fn.collapse.defaults, options)

     if (this.options.parent) {

       this.$parent = $(this.options.parent)

     }

     this.options.toggle && this.toggle()

   }

   Collapse.prototype = {

     constructor: Collapse

   , dimension: function () {

       var hasWidth = this.$element.hasClass('width')

       return hasWidth ? 'width' : 'height'

     }

   , show: function () {

       var dimension

         , scroll

         , actives

         , hasData

       if (this.transitioning || this.$element.hasClass('in')) return

       dimension = this.dimension()

       scroll = $.camelCase(['scroll', dimension].join('-'))

       actives = this.$parent && this.$parent.find('> .accordion-group > .in')

       if (actives && actives.length) {

         hasData = actives.data('collapse')

         if (hasData && hasData.transitioning) return

         actives.collapse('hide')

         hasData || actives.data('collapse', null)

       }

       this.$element[dimension](0)

       this.transition('addClass', $.Event('show'), 'shown')

       $.support.transition && this.$element[dimension](this.$element[0][scroll])

     }

   , hide: function () {

       var dimension

       if (this.transitioning || !this.$element.hasClass('in')) return

       dimension = this.dimension()

       this.reset(this.$element[dimension]())

       this.transition('removeClass', $.Event('hide'), 'hidden')

       this.$element[dimension](0)

     }

   , reset: function (size) {

       var dimension = this.dimension()

       this.$element

         .removeClass('collapse')

         [dimension](size || 'auto')

         [0].offsetWidth

       this.$element[size !== null ? 'addClass' : 'removeClass']('collapse')

       return this

     }

   , transition: function (method, startEvent, completeEvent) {

       var that = this

         , complete = function () {

             if (startEvent.type == 'show') that.reset()

             that.transitioning = 0

             that.$element.trigger(completeEvent)

           }

       this.$element.trigger(startEvent)

       if (startEvent.isDefaultPrevented()) return

       this.transitioning = 1

       this.$element[method]('in')

       $.support.transition && this.$element.hasClass('collapse') ?

         this.$element.one($.support.transition.end, complete) :

         complete()

     }

   , toggle: function () {

       this[this.$element.hasClass('in') ? 'hide' : 'show']()

     }

   }

  /* COLLAPSE PLUGIN DEFINITION

   * ========================== */

   var old = $.fn.collapse

   $.fn.collapse = function (option) {

     return this.each(function () {

       var $this = $(this)

         , data = $this.data('collapse')

         , options = $.extend({}, $.fn.collapse.defaults, $this.data(), typeof option == 'object' && option)

       if (!data) $this.data('collapse', (data = new Collapse(this, options)))

       if (typeof option == 'string') data[option]()

     })

   }

   $.fn.collapse.defaults = {

     toggle: true

   }

   $.fn.collapse.Constructor = Collapse

  /* COLLAPSE NO CONFLICT

   * ==================== */

   $.fn.collapse.noConflict = function () {

     $.fn.collapse = old

     return this

   }

  /* COLLAPSE DATA-API

   * ================= */

   $(document).on('click.collapse.data-api', '[data-toggle=collapse]', function (e) {

     var $this = $(this), href

       , target = $this.attr('data-target')

         || e.preventDefault()

         || (href = $this.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '') //strip for ie7

       , option = $(target).data('collapse') ? 'toggle' : $this.data()

     $this[$(target).hasClass('in') ? 'addClass' : 'removeClass']('collapsed')

     $(target).collapse(option)

   })

 }(window.jQuery);