jQuery实现360°全景拖动展示

CSS

html,body{background:#333;}

 #loading{left:0;top:0;width:100%;height:100%;background:#333;color:#fff;}

 #loading span{left:45%;top:40%;font:normal 50px Arial;color:#fff;}

 #demo{left:50%;top:50%;margin-left:-512px;margin-top:-384px;width:1024px;height:768px;}

 #demo img{border-radius:8px;border:5px solid #555;}

 .back{font-size:18px;line-height:130%;padding:8px 20px;color:#fff;}

 #back-home{left:0px;top:0px;background:#35916D;}

 #back-article{right:0px;top:0px;background:#444;}

 #back-download{right:0px;bottom:0px;background:#CE565D;}

HTML

<div id="demo" class="px hide"><img /></div>

<div id="loading" class="px"><span class="pa"></span></div>

js

<script src="scripts/jquery.js?1.11.1"></script>

<script src="scripts/jquery.drag360.js"></script>

<script>

$(function(){

    $(document.body).attr({

      'onSelectStart' :'return false;',

      'oncontextmenu':'return false;',

      'onbeforecopy':'return false;',

      'oncopy':'return false;',

      'ondragstart':'return false;',

      'style':'-moz-user-select:none; -khtml-user-select: none; user-select: none;'

    });

 var Preload=function(images,callback){

  var done=0,val=0;

  var count=images.length; 

  var preload=function(url) {

   var image = $("<img />").attr("src", url).on("load",function () {

    complete();

   });

   };

  var complete=function() {

   done++;

   val=done/count*100;

   $('#loading span').text(Math.ceil(val) + "%");

   if(done==count){

    callback();

   }

  };

  for(var i=0;i<images.length;i++){

   preload(images[i]);

  }

 };

 var images=[

   'drag/shiwai ceshi0006.jpg',

   'drag/shiwai ceshi0012.jpg',

   'drag/shiwai ceshi0018.jpg',

   'drag/shiwai ceshi0024.jpg',

   'drag/shiwai ceshi0030.jpg',

   'drag/shiwai ceshi0036.jpg',

   'drag/shiwai ceshi0042.jpg',

   'drag/shiwai ceshi0048.jpg',

   'drag/shiwai ceshi0054.jpg',

   'drag/shiwai ceshi0060.jpg',

   'drag/shiwai ceshi0066.jpg',

   'drag/shiwai ceshi0072.jpg',

   'drag/shiwai ceshi0078.jpg',

   'drag/shiwai ceshi0084.jpg',

   'drag/shiwai ceshi0090.jpg',

   'drag/shiwai ceshi0096.jpg',

   'drag/shiwai ceshi0102.jpg',

   'drag/shiwai ceshi0108.jpg',

   'drag/shiwai ceshi0114.jpg',

   'drag/shiwai ceshi0120.jpg',

   'drag/shiwai ceshi0126.jpg',

   'drag/shiwai ceshi0132.jpg',

   'drag/shiwai ceshi0138.jpg',

   'drag/shiwai ceshi0144.jpg',

   'drag/shiwai ceshi0150.jpg',

   'drag/shiwai ceshi0156.jpg',

   'drag/shiwai ceshi0162.jpg',

   'drag/shiwai ceshi0168.jpg',

   'drag/shiwai ceshi0174.jpg',

   'drag/shiwai ceshi0180.jpg',

   'drag/shiwai ceshi0186.jpg',

   'drag/shiwai ceshi0192.jpg',

   'drag/shiwai ceshi0198.jpg',

   'drag/shiwai ceshi0204.jpg',

   'drag/shiwai ceshi0210.jpg',

   'drag/shiwai ceshi0216.jpg',

   'drag/shiwai ceshi0222.jpg',

   'drag/shiwai ceshi0228.jpg',

   'drag/shiwai ceshi0234.jpg',

   'drag/shiwai ceshi0240.jpg',

   'drag/shiwai ceshi0246.jpg',

   'drag/shiwai ceshi0252.jpg',

   'drag/shiwai ceshi0258.jpg',

   'drag/shiwai ceshi0264.jpg',

   'drag/shiwai ceshi0270.jpg',

   'drag/shiwai ceshi0276.jpg',

   'drag/shiwai ceshi0282.jpg',

   'drag/shiwai ceshi0288.jpg',

   'drag/shiwai ceshi0294.jpg',

   'drag/shiwai ceshi0300.jpg',

   'drag/shiwai ceshi0306.jpg',

   'drag/shiwai ceshi0312.jpg',

   'drag/shiwai ceshi0318.jpg',

   'drag/shiwai ceshi0324.jpg',

   'drag/shiwai ceshi0330.jpg',

   'drag/shiwai ceshi0336.jpg',

   'drag/shiwai ceshi0342.jpg',

   'drag/shiwai ceshi0348.jpg',

   'drag/shiwai ceshi0354.jpg',

   'drag/shiwai ceshi0360.jpg',

 ];

 Preload(images,function(){

  $("#loading").fadeOut();

  $("#demo img").attr("src",images[0]);

  $("#demo").fadeIn();

  $("#demo img").drag360(images);

 });
});

</script>

drag.js

(function($){

    $.fn.drag360=function(images){

        var mdx,mmx,isDrag=false,unitStep=40,current=0;

        var that=$(this);

        var length=images.length;

        //触摸  

        that.on('touchstart',function(e){

            var touch = e.originalEvent;

                mdx = touch.changedTouches[0].pageX;

                isDrag=true;

        }).on('touchmove',function(e){

            e.preventDefault();

            touch = e.originalEvent.touches[0]||e.originalEvent.changedTouches[0];

            mmx=touch.pageX;

            if(isDrag){

                if(Math.abs(mmx-mdx)>unitStep){

                    if(mmx-mdx>0){

                        current=current+1; 

                    }else{

                        current=current-1;

                    }

                    mdx=mmx;

                    if(current<0)current=length-1;

                    if(current>length-1)current=0;

                    that.attr("src",images[current]);

                }

            }

        }).on('touchend',function(e){

            isDrag=false;

        });

        //拖动

        that.on('mousedown',function(e){

            mdx=e.pageX;

            isDrag=true;

        }).on('mousemove',function(e){

            mmx=e.pageX;

            if(isDrag){

                if(Math.abs(mmx-mdx)>unitStep){

                    current=current+(mmx-mdx>0?1:-1);

                    mdx=mmx;

                    if(current<0)current=length-1;

                    if(current>length-1)current=0;

                    that.attr("src",images[current]);

                }

            }

            return false;

        })

        $(document).on('mouseup',function(e){

            isDrag=false;

        });

        $(document).on('mouseleave',function(e){

            isDrag=false;

        });

        return this;

    };

})(jQuery);

以上所述就是本文的全部内容了，希望大家能够喜欢。