﻿(function() {
    $.fn.infiniteCarousel = function() {
        function repeat(str, n) {
            return new Array(n + 1).join(str);
        }
        return this.each(function() {
            var $wrapper = $('> div', this).css('overflow', 'hidden'), $slider = $wrapper.find('> ul').width(9999),
        $items = $slider.find('> li'), $single = $items.filter(':first')
            singleWidth = $single.outerWidth(), visible = Math.ceil($wrapper.innerWidth() / singleWidth),
        currentPage = 1, pages = Math.ceil($items.length / visible);
            /* TASKS */

            // 1. pad the pages with empty element if required
            if ($items.length % visible != 0) {
                // pad                
                $slider.append(repeat('<li class="empty" />', visible - ($items.length % visible)));
                $items = $slider.find('> li');
            }

            // 2. create the carousel padding on left and right (cloned)            
            $items.filter(':first').before($items.slice(-visible).clone().addClass('cloned'));
            $items.filter(':last').after($items.slice(0, visible).clone().addClass('cloned'));
            $items = $slider.find('> li');                        // 3. reset scroll
            $wrapper.scrollLeft(singleWidth * visible);

            // 4. paging function
            function gotoPage(page) {
                var dir = page < currentPage ? -1 : 1, n = Math.abs(currentPage - page), left = singleWidth * dir * visible * n;
                $wrapper.filter(':not(:animated)').animate({

                    scrollLeft: '+=' + left
                }, 1000,
            function() {                    // if page == last page - then reset position
                if (page > pages) {
                    $wrapper.scrollLeft(singleWidth * visible);
                    page = 1;
                } else if (page == 0) {
                    page = pages;
                    $wrapper.scrollLeft(singleWidth * visible * pages);
                }
                currentPage = page;
            });
            }

            // 5. insert the back and forward link            
            $wrapper.after('<a href="#" class="arrow back">&lt;</a><a href="#" class="arrow forward">&gt;</a>');

            // 6. bind the back and forward links
            $('a.back', this).click(function() {
                gotoPage(currentPage - 1);
                return false;
            });
            $('a.forward', this).click(function() {
                gotoPage(currentPage + 1);
                return false;
            });
            $(this).bind('goto', function(event, page) {
                gotoPage(page);
            });

            // THIS IS NEW CODE FOR THE AUTOMATIC INFINITE CAROUSEL
            $(this).bind('next', function() {
                gotoPage(currentPage + 1);
            });
        });
    };
})(jQuery); $(document).ready(function() {

    // THIS IS NEW CODE FOR THE AUTOMATIC INFINITE CAROUSEL    
    var autoscrolling = true;
    $('.infiniteCarousel').infiniteCarousel().mouseover(function() {
        autoscrolling = false;
    }).mouseout(function() {
        autoscrolling = true;
    });
    setInterval(function() {

        if (autoscrolling) {
            $('.infiniteCarousel').trigger('next');
        }
    }, 10000);
});
