/*
 * jQuery infinitecarousel plugin
 * @author admin@catchmyfame.com - http://www.catchmyfame.com
 * @version 1.2.2
 * @date August 31, 2009
 * @category jQuery plugin
 * @copyright (c) 2009 admin@catchmyfame.com (www.catchmyfame.com)
 * @license CC Attribution-Share Alike 3.0 - http://creativecommons.org/licenses/by-sa/3.0/
 */

(function($){
        $.fn.extend({ 
                infiniteCarousel: function(options)
                {
                        var defaults = 
                        {
                                transitionSpeed : 1500,
                                displayTime : 6000,
                                textholderHeight : .2,
                                displayProgressBar : 1,
                                displayThumbnails: 1,
                                displayThumbnailNumbers: 1,
                                displayThumbnailBackground: 1,
                                thumbnailWidth: '20px',
                                thumbnailHeight: '20px',
                                thumbnailFontSize: '.7em'
                        };
                var options = $.extend(defaults, options);
        
                    return this.each(function() {
                            var randID = Math.round(Math.random()*100000000);
                                var o=options;
                                var obj = $(this);
                                var curr = 1;

                                var numImages = $('img', obj).length; // Number of images
                                var imgHeight = $('img:first', obj).height();
                                var imgWidth = $('img:first', obj).width();
                                var autopilot = 1;
                
                                $('p', obj).hide(); // Hide any text paragraphs in the carousel
                                $(obj).width(imgWidth).height(imgHeight);
                        
                                // Build progress bar
                                if(o.displayProgressBar)
                                {
                                        $(obj).append('<div id="progress'+randID+'" style="position:absolute;bottom:0;background:#bbb;left:'+$(obj).css('paddingLeft')+'"></div>');
                                        $('#progress'+randID).width(imgWidth).height(5).css('opacity','.5');
                                }
                        
                                // Move last image and stick it on the front
                                $(obj).css({'overflow':'hidden','position':'relative'});
                                $('li:last', obj).prependTo($('ul', obj));
                                $('ul', obj).css('left',-imgWidth+'px');
                                $('ul',obj).width(9999);

                                $('ul',obj).css({'list-style':'none','margin':'0','padding':'0','position':'relative'});
                                $('li',obj).css({'display':'inline','float':'left'});
                        
                                // Build textholder div thats as wide as the carousel and 20%-25% of the height
                                $(obj).append('<div id="textholder'+randID+'" class="textholder" style="position:absolute;bottom:0px;margin-bottom:'+-imgHeight*o.textholderHeight+'px;left:'+$(obj).css('paddingLeft')+'"></div>');
                                var correctTHWidth = parseInt($('#textholder'+randID).css('paddingTop'));
                                var correctTHHeight = parseInt($('#textholder'+randID).css('paddingRight'));
                                $('#textholder'+randID).width(imgWidth-(correctTHWidth * 2)).height((imgHeight*o.textholderHeight)-(correctTHHeight * 2)).css({'backgroundColor':'#FFF','opacity':'0.9'});
                                showtext($('li:eq(1) p', obj).html());
                        
                                // Prev/next button(img) 
                                html = '<!--<div id="btn_rt'+randID+'" style="position:absolute;right:0;top:'+((imgHeight/2)-15)+'px"><a href="javascript:void(0);"><img style="border:none;margin-right:2px" src="http://maletec.lynxandino.com.ec/lxMarket/jQuery/infiniteCarousel/images/rt.png" /></a></div>-->';
                                html += '<!--<div id="btn_lt'+randID+'" style="position:absolute;left:0;top:'+((imgHeight/2)-15)+'px"><a href="javascript:void(0);"><img style="border:none;margin-left:2px" src="http://maletec.lynxandino.com.ec/lxMarket/jQuery/infiniteCarousel/images/lt.png" /></a></div>-->';
                                $(obj).append(html);
                        
                                // Pause/play button(img)        
                                html = '<a href="javascript:void(0);"><img id="pause_btn'+randID+'" src="http://maletec.lynxandino.com.ec/lxMarket/jQuery/infiniteCarousel/images/pause.png" style="position:absolute;top:3px;right:3px;border:none" alt="Pause" /></a>';
                                html += '<a href="javascript:void(0);"><img id="play_btn'+randID+'" src="http://maletec.lynxandino.com.ec/lxMarket/jQuery/infiniteCarousel/images/play.png" style="position:absolute;top:3px;right:3px;border:none;display:none;" alt="Play" /></a>';
                                $(obj).append(html);
                                $('#pause_btn'+randID).css('opacity','.5').hover(function(){$(this).animate({opacity:'1'},250)},function(){$(this).animate({opacity:'.5'},250)});
                                $('#pause_btn'+randID).click(function(){
                                        autopilot = 0;
                                        $('#progress'+randID).stop().fadeOut();
                                        clearTimeout(clearInt);
                                        $('#pause_btn'+randID).fadeOut(250);
                                        $('#play_btn'+randID).fadeIn(250);
                                        showminmax();
                                });
                                $('#play_btn'+randID).css('opacity','.5').hover(function(){$(this).animate({opacity:'1'},250)},function(){$(this).animate({opacity:'.5'},250)});
                                $('#play_btn'+randID).click(function(){
                                        autopilot = 1;
                                        anim('next');
                                        $('#play_btn'+randID).hide();
                                        clearInt=setInterval(function(){anim('next');},o.displayTime+o.transitionSpeed);
                                        setTimeout(function(){$('#pause_btn'+randID).show();$('#progress'+randID).fadeIn().width(imgWidth).height(5);},o.transitionSpeed);
                                });
                                
                                // Left and right arrow image button actions
                                $('#btn_rt'+randID).css('opacity','.75').click(function(){
                                        autopilot = 0;
                                        $('#progress'+randID).stop().fadeOut();
                                        anim('next');
                                        setTimeout(function(){$('#play_btn'+randID).fadeIn(250);},o.transitionSpeed);
                                        clearTimeout(clearInt);
                                }).hover(function(){$(this).animate({opacity:'1'},250)},function(){$(this).animate({opacity:'.75'},250)});
                                $('#btn_lt'+randID).css('opacity','.75').click(function(){
                                        autopilot = 0;
                                        $('#progress'+randID).stop().fadeOut();
                                        anim('prev');
                                        setTimeout(function(){$('#play_btn'+randID).fadeIn(250);},o.transitionSpeed);
                                        clearTimeout(clearInt);
                                }).hover(function(){$(this).animate({opacity:'1'},250)},function(){$(this).animate({opacity:'.75'},250)});

                                if(o.displayThumbnails)
                                {
                                        // Build thumbnail viewer and thumbnail divs
                                        $(obj).after('<div id="thumbs'+randID+'" style="position:relative;overflow:auto;text-align:left;padding-top:5px;"></div>');
                                        $('#thumbs'+randID).width(imgWidth);
                                        for(i=0;i<=numImages-1;i++)
                                        {
                                                thumb = $('img:eq('+(i+1)+')', obj).attr('src');
                                                $('#thumbs'+randID).append('<div class="thumb" id="thumb'+randID+'_'+(i+1)+'" style="cursor:pointer;background-image:url('+thumb+');display:inline;float:left;width:'+o.thumbnailWidth+';height:'+o.thumbnailHeight+';line-height:'+o.thumbnailHeight+';padding:0;overflow:hidden;text-align:center;border:2px solid #ccc;margin-right:4px;font-size:'+o.thumbnailFontSize+';font-family:Arial;color:#000;text-shadow:0 0 3px #fff">'+(i+1)+'</div>');
                                                if(i==0) $('#thumb'+randID+'_1').css({'border-color':'#ff0000'});
                                        }
                                        // Next two lines are a special case to handle the first list element which was originally the last
                                        thumb = $('img:first', obj).attr('src');
                                        $('#thumb'+randID+'_'+numImages).css({'background-image':'url('+thumb+')'});
                                        $('#thumbs'+randID+' div.thumb:not(:first)').css({'opacity':'.65'}); // makes all thumbs 65% opaque except the first one
                                        $('#thumbs'+randID+' div.thumb').hover(function(){$(this).animate({'opacity':.99},150)},function(){if(curr!=this.id.split('_')[1]) $(this).animate({'opacity':.65},250)}); // add hover to thumbs

                                        // Assign click handler for the thumbnails. Normally the format $('.thumb') would work but since it's outside of our object (obj) it would get called multiple times
                                        $('#thumbs'+randID+' div').bind('click', thumbclick); // We use bind instead of just plain click so that we can repeatedly remove and reattach the handler
                                
                                        if(!o.displayThumbnailNumbers) $('#thumbs'+randID+' div').text('');
                                        if(!o.displayThumbnailBackground) $('#thumbs'+randID+' div').css({'background-image':'none'});
                                }
                                function thumbclick(event)
                                {
                                        target_num = this.id.split('_'); // we want target_num[1]
                                        if(curr != target_num[1])
                                        {
                                                $('#thumb'+randID+'_'+curr).css({'border-color':'#ccc'});
                                                $('#progress'+randID).stop().fadeOut();
                                                clearTimeout(clearInt);
                                                //alert(event.data.src+' '+this.id+' '+target_num[1]+' '+curr);
                                                $('#thumbs'+randID+' div').css({'cursor':'default'}).unbind('click'); // Unbind the thumbnail click event until the transition has ended
                                                autopilot = 0;
                                                setTimeout(function(){$('#play_btn'+randID).fadeIn(250);},o.transitionSpeed);
                                        }
                                        if(target_num[1] > curr)
                                        {
                                                diff = target_num[1] - curr;
                                                anim('next',diff);
                                        }
                                        if(target_num[1] < curr)
                                        {
                                                diff = curr - target_num[1];
                                                anim('prev', diff);
                                        }
                                }

                                function showtext(t)
                                {
                                        // the text will always be the text of the second list item (if it exists)
                                        if(t != null)
                                        {
                                                $('#textholder'+randID).html(t).animate({marginBottom:'0px'},500); // Raise textholder
                                                showminmax();
                                        }
                                }
                                function showminmax()
                                {
                                                if(!autopilot)
                                                {
                                                        html = '<img style="position:absolute;top:2px;right:18px;display:none;cursor:pointer" src="http://maletec.lynxandino.com.ec/lxMarket/jQuery/infiniteCarousel/images/down.png" title="Minimize" alt="minimize" id="min" /><img style="position:absolute;top:2px;right:18px;display:none;cursor:pointer" src="http://maletec.lynxandino.com.ec/lxMarket/jQuery/infiniteCarousel/images/up.png" title="Maximize" alt="maximize" id="max" />';
                                                        html += '<img style="position:absolute;top:2px;right:6px;display:none;cursor:pointer" src="http://maletec.lynxandino.com.ec/lxMarket/jQuery/infiniteCarousel/images/close.png" title="Close" alt="close" id="close" />';
                                                        $('#textholder'+randID).append(html);
                                                        $('#min').fadeIn(250).click(function(){$('#textholder'+randID).animate({marginBottom:(-imgHeight*o.textholderHeight)-(correctTHHeight * 2)+24+'px'},500,function(){$("#min,#max").toggle();});});
                                                        $('#max').click(function(){$('#textholder'+randID).animate({marginBottom:'0px'},500,function(){$("#min,#max").toggle();});});
                                                        $('#close').fadeIn(250).click(function(){$('#textholder'+randID).animate({marginBottom:(-imgHeight*o.textholderHeight)-(correctTHHeight * 2)+'px'},500);});
                                                }
                                }
                                function borderpatrol(elem)
                                {
                                        $('#thumbs'+randID+' div').css({'border-color':'#ccc'}).animate({opacity: 0.65},500);
                                        setTimeout(function(){elem.css({'border-color':'#ff0000'}).animate({'opacity': .99},500);},o.transitionSpeed);
                                }
                                function anim(direction,dist)
                                {
                                        // Fade left/right arrows out when transitioning
                                        $('#btn_rt'+randID).fadeOut(500);
                                        $('#btn_lt'+randID).fadeOut(500);
                                        
                                        // animate textholder out of frame
                                        $('#textholder'+randID).animate({marginBottom:(-imgHeight*o.textholderHeight)-(correctTHHeight * 2)+'px'},500);                                        

                                        //?? Fade out play/pause?
                                        $('#pause_btn'+randID).fadeOut(250);
                                        $('#play_btn'+randID).fadeOut(250);

                                        if(direction == "next")
                                        {
                                                if(curr==numImages) curr=0;
                                                if(dist>1)
                                                {
                                                        borderpatrol($('#thumb'+randID+'_'+(curr+dist)));
                                                        $('li:lt(2)', obj).clone().insertAfter($('li:last', obj));
                                                        $('ul', obj).animate({left:-imgWidth*(dist+1)},o.transitionSpeed,function(){
                                                                $('li:lt(2)', obj).remove();
                                                                for(j=1;j<=dist-2;j++)
                                                                {
                                                                        $('li:first', obj).clone().insertAfter($('li:last', obj));
                                                                        $('li:first', obj).remove();
                                                                }
                                                                $('#btn_rt'+randID).fadeIn(500);
                                                                $('#btn_lt'+randID).fadeIn(500);
                                                                $('#play_btn'+randID).fadeIn(250);
                                                                showtext($('li:eq(1) p', obj).html());
                                                                $(this).css({'left':-imgWidth});
                                                                curr = curr+dist;
                                                                $('#thumbs'+randID+' div').bind('click', thumbclick).css({'cursor':'pointer'});
                                                        });
                                                }
                                                else
                                                {
                                                        borderpatrol($('#thumb'+randID+'_'+(curr+1)));
                                                        $('#thumbs'+randID+' div').css({'cursor':'default'}).unbind('click'); // Unbind the thumbnail click event until the transition has ended
                                                        // Copy leftmost (first) li and insert it after the last li
                                                        $('li:first', obj).clone().insertAfter($('li:last', obj));        
                                                        // Update width and left position of ul and animate ul to the left
                                                        $('ul', obj)
                                                                .animate({left:-imgWidth*2},o.transitionSpeed,function(){
                                                                        $('li:first', obj).remove();
                                                                        $('ul', obj).css('left',-imgWidth+'px');
                                                                        $('#btn_rt'+randID).fadeIn(500);
                                                                        $('#btn_lt'+randID).fadeIn(500);
                                                                        if(autopilot) $('#pause_btn'+randID).fadeIn(250);
                                                                        showtext($('li:eq(1) p', obj).html());
                                                                        if(autopilot)
                                                                        {
                                                                                $('#progress'+randID).width(imgWidth).height(5);
                                                                                $('#progress'+randID).animate({'width':0},o.displayTime,function(){
                                                                                        $('#pause_btn'+randID).fadeOut(50);
                                                                                        setTimeout(function(){$('#pause_btn'+randID).fadeIn(250)},o.transitionSpeed)
                                                                                });
                                                                        }
                                                                        curr=curr+1;
                                                                        $('#thumbs'+randID+' div').bind('click', thumbclick).css({'cursor':'pointer'});
                                                                });
                                                }
                                        }
                                        if(direction == "prev")
                                        {
                                                if(dist>1)
                                                {
                                                        borderpatrol($('#thumb'+randID+'_'+(curr-dist)));
                                                        $('li:gt('+(numImages-(dist+1))+')', obj).clone().insertBefore($('li:first', obj));
                                                        $('ul', obj).css({'left':(-imgWidth*(dist+1))}).animate({left:-imgWidth},o.transitionSpeed,function(){
                                                                $('li:gt('+(numImages-1)+')', obj).remove();
                                                                $('#btn_rt'+randID).fadeIn(500);
                                                                $('#btn_lt'+randID).fadeIn(500);
                                                                $('#play_btn'+randID).fadeIn(250);
                                                                showtext($('li:eq(1) p', obj).html());
                                                                curr = curr - dist;
                                                                $('#thumbs'+randID+' div').bind('click', thumbclick).css({'cursor':'pointer'});
                                                        });
                                                }
                                                else
                                                {
                                                        borderpatrol($('#thumb'+randID+'_'+(curr-1)));
                                                        $('#thumbs'+randID+' div').css({'cursor':'default'}).unbind('click'); // Unbind the thumbnail click event until the transition has ended
                                                        // Copy rightmost (last) li and insert it after the first li
                                                        $('li:last', obj).clone().insertBefore($('li:first', obj));
                                                        // Update width and left position of ul and animate ul to the right
                                                        $('ul', obj)
                                                                .css('left',-imgWidth*2+'px')
                                                                .animate({left:-imgWidth},o.transitionSpeed,function(){
                                                                        $('li:last', obj).remove();
                                                                        $('#btn_rt'+randID).fadeIn(500);
                                                                        $('#btn_lt'+randID).fadeIn(500);
                                                                        if(autopilot) $('#pause_btn'+randID).fadeIn(250);
                                                                        showtext($('li:eq(1) p', obj).html());
                                                                        curr=curr-1;
                                                                        if(curr==0) curr=numImages;
                                                                        $('#thumbs'+randID+' div').bind('click', thumbclick).css({'cursor':'pointer'});
                                                                });
                                                }
                                        }
                                }

                                var clearInt = setInterval(function(){anim('next');},o.displayTime+o.transitionSpeed);
                                $('#progress'+randID).animate({'width':0},o.displayTime+o.transitionSpeed,function(){
                                        $('#pause_btn'+randID).fadeOut(100);
                                        setTimeout(function(){$('#pause_btn'+randID).fadeIn(250)},o.transitionSpeed)
                                });
                  });
            }
        });
})(jQuery);