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

 * bootstrap-carousel.js v2.3.1

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

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

 * 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 ;_;

 /* CAROUSEL CLASS DEFINITION

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

  var Carousel = function (element, options) {

    this.$element = $(element)

    this.$indicators = this.$element.find('.carousel-indicators')

    this.options = options

    this.options.pause == 'hover' && this.$element

      .on('mouseenter', $.proxy(this.pause, this))

      .on('mouseleave', $.proxy(this.cycle, this))

  }

  Carousel.prototype = {

    cycle: function (e) {

      if (!e) this.paused = false

      if (this.interval) clearInterval(this.interval);

      this.options.interval

        && !this.paused

        && (this.interval = setInterval($.proxy(this.next, this), this.options.interval))

      return this

    }

  , getActiveIndex: function () {

      this.$active = this.$element.find('.item.active')

      this.$items = this.$active.parent().children()

      return this.$items.index(this.$active)

    }

  , to: function (pos) {

      var activeIndex = this.getActiveIndex()

        , that = this

      if (pos > (this.$items.length - 1) || pos < 0) return

      if (this.sliding) {

        return this.$element.one('slid', function () {

          that.to(pos)

        })

      }

      if (activeIndex == pos) {

        return this.pause().cycle()

      }

      return this.slide(pos > activeIndex ? 'next' : 'prev', $(this.$items[pos]))

    }

  , pause: function (e) {

      if (!e) this.paused = true

      if (this.$element.find('.next, .prev').length && $.support.transition.end) {

        this.$element.trigger($.support.transition.end)

        this.cycle(true)

      }

      clearInterval(this.interval)

      this.interval = null

      return this

    }

  , next: function () {

      if (this.sliding) return

      return this.slide('next')

    }

  , prev: function () {

      if (this.sliding) return

      return this.slide('prev')

    }

  , slide: function (type, next) {

      var $active = this.$element.find('.item.active')

        , $next = next || $active[type]()

        , isCycling = this.interval

        , direction = type == 'next' ? 'left' : 'right'

        , fallback  = type == 'next' ? 'first' : 'last'

        , that = this

        , e

      this.sliding = true

      isCycling && this.pause()

      $next = $next.length ? $next : this.$element.find('.item')[fallback]()

      e = $.Event('slide', {

        relatedTarget: $next[0]

      , direction: direction

      })

      if ($next.hasClass('active')) return

      if (this.$indicators.length) {

        this.$indicators.find('.active').removeClass('active')

        this.$element.one('slid', function () {

          var $nextIndicator = $(that.$indicators.children()[that.getActiveIndex()])

          $nextIndicator && $nextIndicator.addClass('active')

        })

      }

      if ($.support.transition && this.$element.hasClass('slide')) {

        this.$element.trigger(e)

        if (e.isDefaultPrevented()) return

        $next.addClass(type)

        $next[0].offsetWidth // force reflow

        $active.addClass(direction)

        $next.addClass(direction)

        this.$element.one($.support.transition.end, function () {

          $next.removeClass([type, direction].join(' ')).addClass('active')

          $active.removeClass(['active', direction].join(' '))

          that.sliding = false

          setTimeout(function () { that.$element.trigger('slid') }, 0)

        })

      } else {

        this.$element.trigger(e)

        if (e.isDefaultPrevented()) return

        $active.removeClass('active')

        $next.addClass('active')

        this.sliding = false

        this.$element.trigger('slid')

      }

      isCycling && this.cycle()

      return this

    }

  }

 /* CAROUSEL PLUGIN DEFINITION

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

  var old = $.fn.carousel

  $.fn.carousel = function (option) {

    return this.each(function () {

      var $this = $(this)

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

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

        , action = typeof option == 'string' ? option : options.slide

      if (!data) $this.data('carousel', (data = new Carousel(this, options)))

      if (typeof option == 'number') data.to(option)

      else if (action) data[action]()

      else if (options.interval) data.pause().cycle()

    })

  }

  $.fn.carousel.defaults = {

    interval: 5000

  , pause: 'hover'

  }

  $.fn.carousel.Constructor = Carousel

 /* CAROUSEL NO CONFLICT

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

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

    $.fn.carousel = old

    return this

  }

 /* CAROUSEL DATA-API

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

  $(document).on('click.carousel.data-api', '[data-slide], [data-slide-to]', function (e) {

    var $this = $(this), href

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

      , options = $.extend({}, $target.data(), $this.data())

      , slideIndex

    $target.carousel(options)

    if (slideIndex = $this.attr('data-slide-to')) {

      $target.data('carousel').pause().to(slideIndex).cycle()

    }

    e.preventDefault()

  })

}(window.jQuery);