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

* Bootstrap: carousel.js v3.3.1
* http://getbootstrap.com/javascript/#carousel
* ========================================================================
* Copyright 2011-2014 Twitter, Inc.
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/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.keyboard && this.$element.on('keydown.bs.carousel', $.proxy(this.keydown, this))

  this.options.pause == 'hover' && !('ontouchstart' in document.documentElement) && this.$element
    .on('mouseenter.bs.carousel', $.proxy(this.pause, this))
    .on('mouseleave.bs.carousel', $.proxy(this.cycle, this))
}

Carousel.VERSION  = '3.3.1'

Carousel.TRANSITION_DURATION = 600

Carousel.DEFAULTS = {
  interval: 5000,
  pause: 'hover',
  wrap: true,
  keyboard: true
}

Carousel.prototype.keydown = function (e) {
  if (/input|textarea/i.test(e.target.tagName)) return
  switch (e.which) {
    case 37: this.prev(); break
    case 39: this.next(); break
    default: return
  }

  e.preventDefault()
}

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.getItemIndex = function (item) {
  this.$items = item.parent().children('.item')
  return this.$items.index(item || this.$active)
}

Carousel.prototype.getItemForDirection = function (direction, active) {
  var delta = direction == 'prev' ? -1 : 1
  var activeIndex = this.getItemIndex(active)
  var itemIndex = (activeIndex + delta) % this.$items.length
  return this.$items.eq(itemIndex)
}

Carousel.prototype.to = function (pos) {
  var that        = this
  var activeIndex = this.getItemIndex(this.$active = this.$element.find('.item.active'))

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

  if (this.sliding)       return this.$element.one('slid.bs.carousel', function () { that.to(pos) }) // yes, "slid"
  if (activeIndex == pos) return this.pause().cycle()

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

Carousel.prototype.pause = function (e) {
  e || (this.paused = true)

  if (this.$element.find('.next, .prev').length && $.support.transition) {
    this.$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 || this.getItemForDirection(type, $active)
  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 relatedTarget = $next[0]
  var slideEvent = $.Event('slide.bs.carousel', {
    relatedTarget: relatedTarget,
    direction: direction
  })
  this.$element.trigger(slideEvent)
  if (slideEvent.isDefaultPrevented()) return

  this.sliding = true

  isCycling && this.pause()

  if (this.$indicators.length) {
    this.$indicators.find('.active').removeClass('active')
    var $nextIndicator = $(this.$indicators.children()[this.getItemIndex($next)])
    $nextIndicator && $nextIndicator.addClass('active')
  }

  var slidEvent = $.Event('slid.bs.carousel', { relatedTarget: relatedTarget, direction: direction }) // yes, "slid"
  if ($.support.transition && this.$element.hasClass('slide')) {
    $next.addClass(type)
    $next[0].offsetWidth // force reflow
    $active.addClass(direction)
    $next.addClass(direction)
    $active
      .one('bsTransitionEnd', function () {
        $next.removeClass([type, direction].join(' ')).addClass('active')
        $active.removeClass(['active', direction].join(' '))
        that.sliding = false
        setTimeout(function () {
          that.$element.trigger(slidEvent)
        }, 0)
      })
      .emulateTransitionEnd(Carousel.TRANSITION_DURATION)
  } else {
    $active.removeClass('active')
    $next.addClass('active')
    this.sliding = false
    this.$element.trigger(slidEvent)
  }

  isCycling && this.cycle()

  return this
}

// CAROUSEL PLUGIN DEFINITION
// ==========================

function Plugin(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()
  })
}

var old = $.fn.carousel

$.fn.carousel             = Plugin
$.fn.carousel.Constructor = Carousel

// CAROUSEL NO CONFLICT
// ====================

$.fn.carousel.noConflict = function () {
  $.fn.carousel = old
  return this
}

// CAROUSEL DATA-API
// =================

var clickHandler = function (e) {
  var href
  var $this   = $(this)
  var $target = $($this.attr('data-target') || (href = $this.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '')) // strip for ie7
  if (!$target.hasClass('carousel')) return
  var options = $.extend({}, $target.data(), $this.data())
  var slideIndex = $this.attr('data-slide-to')
  if (slideIndex) options.interval = false

  Plugin.call($target, options)

  if (slideIndex) {
    $target.data('bs.carousel').to(slideIndex)
  }

  e.preventDefault()
}

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

$(window).on('load', function () {
  $('[data-ride="carousel"]').each(function () {
    var $carousel = $(this)
    Plugin.call($carousel, $carousel.data())
  })
})

}(jQuery);