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

 * Bootstrap: collapse.js v3.0.0

 * http://twbs.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";

  // COLLAPSE PUBLIC CLASS DEFINITION

  // ================================

  var Collapse = function (element, options) {

    this.$element      = $(element)

    this.options       = $.extend({}, Collapse.DEFAULTS, options)

    this.transitioning = null

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

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

  }

  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 startEvent = $.Event('show.bs.collapse')

    this.$element.trigger(startEvent)

    if (startEvent.isDefaultPrevented()) return

    var actives = this.$parent && this.$parent.find('> .panel > .in')

    if (actives && actives.length) {

      var hasData = actives.data('bs.collapse')

      if (hasData && hasData.transitioning) return

      actives.collapse('hide')

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

    }

    var dimension = this.dimension()

    this.$element

      .removeClass('collapse')

      .addClass('collapsing')

      [dimension](0)

    this.transitioning = 1

    var complete = function () {

      this.$element

        .removeClass('collapsing')

        .addClass('in')

        [dimension]('auto')

      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($.support.transition.end, $.proxy(complete, this))

      .emulateTransitionEnd(350)

      [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')

      .removeClass('in')

    this.transitioning = 1

    var complete = function () {

      this.transitioning = 0

      this.$element

        .trigger('hidden.bs.collapse')

        .removeClass('collapsing')

        .addClass('collapse')

    }

    if (!$.support.transition) return complete.call(this)

    this.$element

      [dimension](0)

      .one($.support.transition.end, $.proxy(complete, this))

      .emulateTransitionEnd(350)

  }

  Collapse.prototype.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)

      var data    = $this.data('bs.collapse')

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

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

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

    })

  }

  $.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), href

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

        || e.preventDefault()

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

    var $target = $(target)

    var data    = $target.data('bs.collapse')

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

    var parent  = $this.attr('data-parent')

    var $parent = parent && $(parent)

    if (!data || !data.transitioning) {

      if ($parent) $parent.find('[data-toggle=collapse][data-parent="' + parent + '"]').not($this).addClass('collapsed')

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

    }

    $target.collapse(option)

  })

}(window.jQuery);