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

 * Bootstrap: carousel.js v3.0.0

 * http://twbs.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";

  // CAROUSEL CLASS DEFINITION

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

  var Carousel = function (element, options) {

    this.$element    = $(element)

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

    this.options     = options

    this.paused      =

    this.sliding     =

    this.interval    =

    this.$active     =

    this.$items      = null

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

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

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

  }

  Carousel.DEFAULTS = {

    interval: 5000

  , pause: 'hover'

  , wrap: true

  }

  Carousel.prototype.cycle =  function (e) {

    e || (this.paused = false)

    this.interval && clearInterval(this.interval)

    this.options.interval

      && !this.paused

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

    return this

  }

  Carousel.prototype.getActiveIndex = function () {

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

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

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

  }

  Carousel.prototype.to = function (pos) {

    var that        = this

    var activeIndex = this.getActiveIndex()

    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]))

  }

  Carousel.prototype.pause = function (e) {

    e || (this.paused = true)

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

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

      this.cycle(true)

    }

    this.interval = clearInterval(this.interval)

    return this

  }

  Carousel.prototype.next = function () {

    if (this.sliding) return

    return this.slide('next')

  }

  Carousel.prototype.prev = function () {

    if (this.sliding) return

    return this.slide('prev')

  }

  Carousel.prototype.slide = function (type, next) {

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

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

    var isCycling = this.interval

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

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

    var that      = this

    if (!$next.length) {

      if (!this.options.wrap) return

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

    }

    this.sliding = true

    isCycling && this.pause()

    var e = $.Event('slide.bs.carousel', { 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)

      $active

        .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)

        })

        .emulateTransitionEnd(600)

    } 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)

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

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

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

      if (!data) $this.data('bs.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.Constructor = Carousel

  // CAROUSEL NO CONFLICT

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

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

    $.fn.carousel = old

    return this

  }

  // CAROUSEL DATA-API

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

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

    var $this   = $(this), href

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

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

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

    if (slideIndex) options.interval = false

    $target.carousel(options)

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

      $target.data('bs.carousel').to(slideIndex)

    }

    e.preventDefault()

  })

  $(window).on('load', function () {

    $('[data-ride="carousel"]').each(function () {

      var $carousel = $(this)

      $carousel.carousel($carousel.data())

    })

  })

}(window.jQuery);