Carousel.prototype.slide = function()

in templates/ydotm/bootstrap3.js [345:399]

• 46 lines of code
• 14 McCabe index (conditional complexity)

  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]()
    }

    if ($next.hasClass('active')) return this.sliding = false

    var e = $.Event('slide.bs.carousel', { relatedTarget: $next[0], direction: direction })
    this.$element.trigger(e)
    if (e.isDefaultPrevented()) return

    this.sliding = true

    isCycling && this.pause()

    if (this.$indicators.length) {
      this.$indicators.find('.active').removeClass('active')
      this.$element.one('slid.bs.carousel', function () {
        var $nextIndicator = $(that.$indicators.children()[that.getActiveIndex()])
        $nextIndicator && $nextIndicator.addClass('active')
      })
    }

    if ($.support.transition && this.$element.hasClass('slide')) {
      $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.bs.carousel') }, 0)
        })
        .emulateTransitionEnd($active.css('transition-duration').slice(0, -1) * 1000)
    } else {
      $active.removeClass('active')
      $next.addClass('active')
      this.sliding = false
      this.$element.trigger('slid.bs.carousel')
    }

    isCycling && this.cycle()

    return this
  }