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

 * 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);