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

   * Bootstrap: collapse.js v3.3.7

   * http://getbootstrap.com/javascript/#collapse
   * ========================================================================

   * Copyright 2011-2016 Twitter, Inc.
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)

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

  /* jshint latedef: false */

  +function ($) {
    'use strict';

  
    // COLLAPSE PUBLIC CLASS DEFINITION
    // ================================
  
    var Collapse = function (element, options) {
      this.$element      = $(element)
      this.options       = $.extend({}, Collapse.DEFAULTS, options)

      this.$trigger      = $('[data-toggle="collapse"][href="#' + element.id + '"],' +
                             '[data-toggle="collapse"][data-target="#' + element.id + '"]')

      this.transitioning = null

      if (this.options.parent) {
        this.$parent = this.getParent()
      } else {
        this.addAriaAndCollapsedClass(this.$element, this.$trigger)
      }

      if (this.options.toggle) this.toggle()
    }

    Collapse.VERSION  = '3.3.7'
  
    Collapse.TRANSITION_DURATION = 350

    Collapse.DEFAULTS = {
      toggle: true
    }
  
    Collapse.prototype.dimension = function () {
      var hasWidth = this.$element.hasClass('width')
      return hasWidth ? 'width' : 'height'
    }
  
    Collapse.prototype.show = function () {
      if (this.transitioning || this.$element.hasClass('in')) return

      var activesData
      var actives = this.$parent && this.$parent.children('.panel').children('.in, .collapsing')
  
      if (actives && actives.length) {
        activesData = actives.data('bs.collapse')
        if (activesData && activesData.transitioning) return
      }

      var startEvent = $.Event('show.bs.collapse')
      this.$element.trigger(startEvent)
      if (startEvent.isDefaultPrevented()) return

      if (actives && actives.length) {

        Plugin.call(actives, 'hide')
        activesData || actives.data('bs.collapse', null)

      }
  
      var dimension = this.dimension()
  
      this.$element
        .removeClass('collapse')

        .addClass('collapsing')[dimension](0)
        .attr('aria-expanded', true)
  
      this.$trigger
        .removeClass('collapsed')
        .attr('aria-expanded', true)

  
      this.transitioning = 1
  
      var complete = function () {
        this.$element
          .removeClass('collapsing')

          .addClass('collapse in')[dimension]('')

        this.transitioning = 0

        this.$element
          .trigger('shown.bs.collapse')

      }
  
      if (!$.support.transition) return complete.call(this)
  
      var scrollSize = $.camelCase(['scroll', dimension].join('-'))
  
      this.$element

        .one('bsTransitionEnd', $.proxy(complete, this))
        .emulateTransitionEnd(Collapse.TRANSITION_DURATION)[dimension](this.$element[0][scrollSize])

    }
  
    Collapse.prototype.hide = function () {
      if (this.transitioning || !this.$element.hasClass('in')) return
  
      var startEvent = $.Event('hide.bs.collapse')
      this.$element.trigger(startEvent)
      if (startEvent.isDefaultPrevented()) return
  
      var dimension = this.dimension()

      this.$element[dimension](this.$element[dimension]())[0].offsetHeight

  
      this.$element
        .addClass('collapsing')

        .removeClass('collapse in')
        .attr('aria-expanded', false)
  
      this.$trigger
        .addClass('collapsed')
        .attr('aria-expanded', false)

  
      this.transitioning = 1
  
      var complete = function () {
        this.transitioning = 0
        this.$element

          .removeClass('collapsing')
          .addClass('collapse')

          .trigger('hidden.bs.collapse')

      }
  
      if (!$.support.transition) return complete.call(this)
  
      this.$element
        [dimension](0)

        .one('bsTransitionEnd', $.proxy(complete, this))
        .emulateTransitionEnd(Collapse.TRANSITION_DURATION)

    }
  
    Collapse.prototype.toggle = function () {
      this[this.$element.hasClass('in') ? 'hide' : 'show']()
    }

    Collapse.prototype.getParent = function () {
      return $(this.options.parent)
        .find('[data-toggle="collapse"][data-parent="' + this.options.parent + '"]')
        .each($.proxy(function (i, element) {
          var $element = $(element)
          this.addAriaAndCollapsedClass(getTargetFromTrigger($element), $element)
        }, this))
        .end()
    }
  
    Collapse.prototype.addAriaAndCollapsedClass = function ($element, $trigger) {
      var isOpen = $element.hasClass('in')
  
      $element.attr('aria-expanded', isOpen)
      $trigger
        .toggleClass('collapsed', !isOpen)
        .attr('aria-expanded', isOpen)
    }
  
    function getTargetFromTrigger($trigger) {
      var href
      var target = $trigger.attr('data-target')
        || (href = $trigger.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '') // strip for ie7
  
      return $(target)
    }

  
    // COLLAPSE PLUGIN DEFINITION
    // ==========================

    function Plugin(option) {

      return this.each(function () {
        var $this   = $(this)
        var data    = $this.data('bs.collapse')
        var options = $.extend({}, Collapse.DEFAULTS, $this.data(), typeof option == 'object' && option)

        if (!data && options.toggle && /show|hide/.test(option)) options.toggle = false

        if (!data) $this.data('bs.collapse', (data = new Collapse(this, options)))
        if (typeof option == 'string') data[option]()
      })
    }

    var old = $.fn.collapse
  
    $.fn.collapse             = Plugin

    $.fn.collapse.Constructor = Collapse
  
  
    // COLLAPSE NO CONFLICT
    // ====================
  
    $.fn.collapse.noConflict = function () {
      $.fn.collapse = old
      return this
    }
  
  
    // COLLAPSE DATA-API
    // =================

    $(document).on('click.bs.collapse.data-api', '[data-toggle="collapse"]', function (e) {
      var $this   = $(this)
  
      if (!$this.attr('data-target')) e.preventDefault()
  
      var $target = getTargetFromTrigger($this)

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

      Plugin.call($target, option)

    })
  
  }(jQuery);