/* ==========================================================
 * bootstrap-carousel.js v2.3.2
 * 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 newsShowSP2 = function (element, options) {
    this.$element = $(element)
    this.$indicators = this.$element.find('.nssp2-controllers')
    this.options = options
    this.options.pause == 'hover' && this.$element
      .on('mouseenter', $.proxy(this.pause, this))
      .on('mouseleave', $.proxy(this.cycle, this))
  }

  newsShowSP2.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('walking', function () {
          that.to(pos)
        })
      }

      if (activeIndex == pos) {
        return this.pause().cycle()
      }

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

  , pause: function (e) {
      if (!e) this.paused = true
      if (this.$element.find('.next, .prev').length && $.support.nssp2transition.end) {
        this.$element.trigger($.support.nssp2transition.end)
        this.cycle(true)
      }
      clearInterval(this.interval)
      this.interval = null
      return this
    }

  , next: function () {
      if (this.sliding) return
      return this.nsspwalk('next')
    }

  , prev: function () {
      if (this.sliding) return
      return this.nsspwalk('prev')
    }

  , nsspwalk: 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('walking', function () {
          var $nextIndicator = $(that.$indicators.children()[that.getActiveIndex()])
          $nextIndicator && $nextIndicator.addClass('active')
        })
      }

      if ($.support.nssp2transition && this.$element.hasClass('nssp2-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.nssp2transition.end, function () {
          $next.removeClass([type, direction].join(' ')).addClass('active')
          $active.removeClass(['active', direction].join(' '))
          that.sliding = false
          setTimeout(function () { that.$element.trigger('walking') }, 0)
        })
      } else {
        this.$element.trigger(e)
        if (e.isDefaultPrevented()) return
        $active.removeClass('active')
        $next.addClass('active')
        this.sliding = false
        this.$element.trigger('walking')
      }

      isCycling && this.cycle()

      return this
    }

  }


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

  var old = $.fn.nssp2

  $.fn.nssp2 = function (option) {
    return this.each(function () {
      var $this = $(this)
        , data = $this.data('nssp2')
        , options = $.extend({}, $.fn.nssp2.defaults, typeof option == 'object' && option)
        , action = typeof option == 'string' ? option : options.nsspwalk
      if (!data) $this.data('nssp2', (data = new newsShowSP2(this, options)))
      if (typeof option == 'number') data.to(option)
      else if (action) data[action]()
      else if (options.interval) data.pause().cycle()
    })
  }

  $.fn.nssp2.defaults = {
    interval: 5000
  , pause: 'hover'
  }

  $.fn.nssp2.Constructor = newsShowSP2


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

  $.fn.nssp2.noConflict = function () {
    $.fn.nssp2 = old
    return this
  }

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

  $(document).on('click.nssp2.data-api', '[data-nsspwalk], [data-nsspwalk-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.nssp2(options)

    if (slideIndex = $this.attr('data-nsspwalk-to')) {
      $target.data('nssp2').pause().to(slideIndex).cycle()
    }

    e.preventDefault()
  })

}(window.jQuery);





/* CSS TRANSITION SUPPORT (http://www.modernizr.com/)
 * ======================================================= */

!function ($) {

  "use strict"; // jshint ;_;


  $(function () {

    $.support.nssp2transition = (function () {

      var transitionEnd = (function () {

        var el = document.createElement('bootstrap')
          , transEndEventNames = {
               'WebkitTransition' : 'webkitTransitionEnd'
            ,  'MozTransition'    : 'transitionend'
            ,  'OTransition'      : 'oTransitionEnd otransitionend'
            ,  'transition'       : 'transitionend'
            }
          , name

        for (name in transEndEventNames){
          if (el.style[name] !== undefined) {
            return transEndEventNames[name]
          }
        }

      }())

      return transitionEnd && {
        end: transitionEnd
      }

    })()

  })

}(window.jQuery);