$(document).ready(function () {
  
 	   $(".proyydivz").DuZhan_yysoc({ showclass:" .proyydivz .proyydiv",  show_leg: "4",  showjtcalss: " .proyydivz"  , showspanindex: " .proyydivz .proyyspan"});  
	
});
(function ($) {
    $.fn.DuZhan_yysoc = function (options) {

        var defaults = {
            showclass: "proyydiv",
            showspanindex: "",
            showtime: "10000",
            show_leg: "4"
        };
        var showindex = 0;
        var options = $.extend(defaults, options);
        var showlist = $(options.showclass + " dl");
        var showfirst = showlist.eq(0);             
		if ($(window).width() <= 650) {
            options.show_leg = 2;
        }else if($(window).width() <= 1270) {
            options.show_leg = 3; 
		}else{
			options.show_leg = 4;  
		}   
       
	     len = $(options.showclass + " dl").length - options.show_leg+1;
		 
        var index = 0;
        var showcur = "cur";
        var shownowclass = options.showclass;
        var picTimer; 
        var sWidth = showfirst.outerWidth(true) * options.show_leg;
        var movewidth = $(options.showclass + " dl ").outerWidth(true);		
	    $(options.showspanindex).html("");   
        for (var i = 0; i < len; i++) {
                $(options.showspanindex).append("<span " + (i == 0 ? " class=\"" + showcur + "\"" : "") + "></span>");
        }
		var showspan = $(options.showspanindex + " span");
	    showspan.first().addClass(showcur);
		// picTimer = setInterval(AutoMove, options.showtime); 
		
	  //浏览器变化时
	 $(window).resize(function () {
             clearInterval(picTimer);
			     movewidth = $(options.showclass + " dl ").outerWidth(true);
				 len = $(options.showclass + " dl").length - options.show_leg+1;
				 if ($(window).width() <= 650) {
					options.show_leg = 2;
				}else if($(window).width() <= 1270) {
					options.show_leg = 3; 
				}else{
					options.show_leg = 4;  
				}   
     
				 
				 
         });
	
	 
	  $(showspan).mouseenter(function () {
            clearInterval(picTimer);
            index = $(showspan).index(this);			 
            showMove(index);
          //  picTimer = setInterval(AutoMove, options.showtime); 
        })
		  function AutoMove() {
            index++;
            if (index >= len) {
                showFirPic();
                index = 0;
            } else {
                showMove(index);
            }
        } 
	 
	 $(options.showjtcalss).on("click", ".proyyl", function () {	     
	     if (index > 0) {
	         index--;
	         showMove();
	     } 
		 //else { 	  
//	         $(options.showclass + " .proyydivlist ").prepend(showlist.last().clone());
//	         var nowLeft = -1 * movewidth;
//	         $(options.showclass + " .proyydivlist").css("left", nowLeft + "px");
//	         $(options.showclass + " .proyydivlist").stop(true, false).animate({ "left": 0 }, 500, function () {                  
//	             index = len - 1;
//	             nowLeft = -index * movewidth; 
//	             $(options.showclass + " .proyydivlist ").css("left", nowLeft + "px");
//	             $(options.showclass + " .proyydivlist dl:first").remove();
//	         });     
//	     }
        });
        

        $(options.showjtcalss).on("click",".proyyr",function(){     
           if (index < (len-1)) {
	         index++; 
			showMove();    
	     } 
			      
				       
        });
        
       

        function showMove() {			 
            if (index <  len) {				
                  var nowLeft = -index * movewidth;
                  $(options.showclass + " .proyydivlist ").stop(true, false).animate({ "left": nowLeft }, 500, function () {					  
                  });
				 $(window).trigger('scroll');				 
				 showspan.removeClass(showcur).eq(index).addClass(showcur);			
				 	   
            }  else {
              //  showFirPic()
               
            }
        }

        function showFirPic() {
            $(options.showclass + " .proyydivlist").append(showfirst.clone()); 
            var nowLeft = -index * movewidth;
            $(options.showclass + " .proyydivlist").stop(true, false).animate({ "left": nowLeft }, 500, function () {
                $(options.showclass + " .proyydivlist").css("left", "0px");
                $(options.showclass + " .proyydivlist dl:last").remove();
                index = 0;
				 showspan.removeClass(showcur).eq(index).addClass(showcur);
            });
            $(window).trigger('scroll'); 
        }
 

//手机版
	    var rx = 0, tx = 0, ty_end = 0, ismoved = false;
        $(document).delegate(options.showclass, "touchstart", function (e) {
            //e.preventDefault();
            if (!event.touches.length) return;
            var touch = event.touches[0];
            rx = parseInt(this.style.left || 0);
            tx = ty_end = touch.pageX;
        });
        $(document).delegate(options.showclass, "touchmove", function (e) {
            //e.preventDefault();
            if (!event.touches.length) return;
            var touch = event.touches[0];
            ty_end = touch.pageX;
            var x = touch.pageX - tx + rx;
            if (x <= -(len - 1) * sWidth || x >= 0) {
                return;
            }
            //$(options.showclass + " .indexjxdivlist").css("transform", "translateX(" + x + "px)");
        });
        $(document).delegate(options.showclass, "touchend", function (event) {

            if (ty_end > tx + 25) {
                if (index > 0) {
                    index--;
                    showMove(index)
                }
            } else if (ty_end < tx - 25) {
                if (index < len - 1) {
                    index++;
                    showMove(index)
                }
            }
        });
		//结束


    }
})(jQuery)