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

 * Bootstrap: tab.js v3.0.0

 * http://twbs.github.com/bootstrap/javascript.html#tabs

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

 * 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";

  // TAB CLASS DEFINITION

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

  var Tab = function (element) {

    this.element = $(element)

  }

  Tab.prototype.show = function () {

    var $this    = this.element

    var $ul      = $this.closest('ul:not(.dropdown-menu)')

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

    if (!selector) {

      selector = $this.attr('href')

      selector = selector && selector.replace(/.*(?=#[^\s]*$)/, '') //strip for ie7

    }

    if ($this.parent('li').hasClass('active')) return

    var previous = $ul.find('.active:last a')[0]

    var e        = $.Event('show.bs.tab', {

      relatedTarget: previous

    })

    $this.trigger(e)

    if (e.isDefaultPrevented()) return

    var $target = $(selector)

    this.activate($this.parent('li'), $ul)

    this.activate($target, $target.parent(), function () {

      $this.trigger({

        type: 'shown.bs.tab'

      , relatedTarget: previous

      })

    })

  }

  Tab.prototype.activate = function (element, container, callback) {

    var $active    = container.find('> .active')

    var transition = callback

      && $.support.transition

      && $active.hasClass('fade')

    function next() {

      $active

        .removeClass('active')

        .find('> .dropdown-menu > .active')

        .removeClass('active')

      element.addClass('active')

      if (transition) {

        element[0].offsetWidth // reflow for transition

        element.addClass('in')

      } else {

        element.removeClass('fade')

      }

      if (element.parent('.dropdown-menu')) {

        element.closest('li.dropdown').addClass('active')

      }

      callback && callback()

    }

    transition ?

      $active

        .one($.support.transition.end, next)

        .emulateTransitionEnd(150) :

      next()

    $active.removeClass('in')

  }

  // TAB PLUGIN DEFINITION

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

  var old = $.fn.tab

  $.fn.tab = function ( option ) {

    return this.each(function () {

      var $this = $(this)

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

      if (!data) $this.data('bs.tab', (data = new Tab(this)))

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

    })

  }

  $.fn.tab.Constructor = Tab

  // TAB NO CONFLICT

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

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

    $.fn.tab = old

    return this

  }

  // TAB DATA-API

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

  $(document).on('click.bs.tab.data-api', '[data-toggle="tab"], [data-toggle="pill"]', function (e) {

    e.preventDefault()

    $(this).tab('show')

  })

}(window.jQuery);