jquery拖拽排序效果

原文:http://www.cnblogs.com/web-ed2/archive/2011/09/19/2181819.html

 

  1 <!DOCTYPE HTML>
  2 <html>
  3 <head>
  4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  5 <title>测试的拖拽功能</title>
  6 <style type="text/css">
  7 body, div { margin: 0; paading: 0; font-size: 12px; }
  8 body { width: 960px; margin: 0 auto; }
  9 ul, li { margin: 0; padding: 0; list-style: none; }
 10 .clear { clear: both; width: 1px; height: 0px; line-height: 0px; font-size: 1px; }
 11 
 12 .box { width: 600px; height: auto; margin: 25px 0 0 0; padding: 5px; border: 1px solid #f00; }
 13 .main { position: static; width: 600px; height: 80px; margin-bottom: 5px; border: 1px solid blue; background: #ccc; }
 14 .maindash { position: absolute; width: 600px; height: 80px; margin-bottom: 5px; border: 1px dashed blue; background: #ececec; opacity: 0.7; }
 15 
 16 .hide { width: 600px; height: 80px; margin-bottom: 5px; }
 17 .dash { position: sta;tic; width: 600px; height: 80px; margin-bottom: 5px; border: 1px dashed #f00; };
 18 </style>
 19 <script type="text/javascript" src="jquery-1.6.1.min.js"></script>
 20 <script type="text/javascript">
 21 
 22 $(document).ready( function () {
 23 
 24     var range = { x: 0, y: 0 };//鼠标元素偏移量
 25     var lastPos = { x: 0, y: 0, x1: 0, y1: 0 }; //拖拽对象的四个坐标
 26     var tarPos = { x: 0, y: 0, x1: 0, y1: 0 }; //目标元素对象的坐标初始化
 27 
 28     var theDiv = null, move = false;//拖拽对象 拖拽状态
 29     var theDivId =0, theDivHeight = 0, theDivHalf = 0; tarFirstY = 0; //拖拽对象的索引、高度、的初始化。
 30     var tarDiv = null, tarFirst, tempDiv;  //要插入的目标元素的对象, 临时的虚线对象
 31    
 32     $(".main").each(function(){
 33         $(this).mousedown(function (event){
 34             //拖拽对象
 35             theDiv = $(this);
 36            
 37             //鼠标元素相对偏移量
 38             range.x = event.pageX - theDiv.offset().left;
 39             range.y = event.pageY - theDiv.offset().top;
 40            
 41             theDivId = theDiv.index();
 42             theDivHeight = theDiv.height();
 43             theDivHalf = theDivHeight/2;
 44             move = true;
 45            
 46             theDiv.attr("class","maindash");
 47             // 创建新元素 插入拖拽元素之前的位置(虚线框)
 48             $("<div class='dash'></div>").insertBefore(theDiv);
 49                    
 50         });
 51     });
 52    
 53     $(document).mousemove(function(event) {
 54    
 55         if (!move) return false;
 56        
 57         lastPos.x = event.pageX - range.x;
 58         lastPos.y = event.pageY - range.y;
 59         lastPos.y1 = lastPos.y + theDivHeight;
 60        
 61         // 拖拽元素随鼠标移动
 62         theDiv.css({left: lastPos.x + 'px',top: lastPos.y + 'px'});
 63         // 拖拽元素随鼠标移动 查找插入目标元素
 64        
 65         var  $main = $('.main'); // 局部变量:按照重新排列过的顺序  再次获取 各个元素的坐标,
 66         tempDiv = $(".dash"); //获得临时 虚线框的对象
 67        
 68         $main.each(function () {
 69             tarDiv = $(this);
 70             tarPos.x = tarDiv.offset().left;
 71             tarPos.y = tarDiv.offset().top;
 72             tarPos.y1 = tarPos.y + tarDiv.height()/2;
 73            
 74             tarFirst = $main.eq(0); // 获得第一个元素
 75             tarFirstY = tarFirst.offset().top + theDivHalf ; // 第一个元素对象的中心纵坐标
 76            
 77             //拖拽对象 移动到第一个位置
 78             if (lastPos.y <= tarFirstY) {
 79                     tempDiv.insertBefore(tarFirst);
 80             }
 81             //判断要插入目标元素的 坐标后, 直接插入
 82             if (lastPos.y >= tarPos.y - theDivHalf && lastPos.y1 >= tarPos.y1 ) {
 83                 tempDiv.insertAfter(tarDiv);
 84             }
 85            
 86         });
 87 
 88     }).mouseup(function(event) {
 89        
 90         theDiv.insertBefore(tempDiv);  // 拖拽元素插入到 虚线div的位置上
 91         theDiv.attr("class", "main"); //恢复对象的初始样式
 92        
 93         $('.dash').remove(); // 删除新建的虚线div
 94         move=false;
 95        
 96     });
 97    
 98 });
 99 
100 
101 </script>
102 </head>
103 
104 <body> 
105 <div class="box" id="box">
106     <div class="main" id="main0">div1</div>
107     <div class="main" id="main1">div2</div>
108     <div class="main" id="main2">div3</div>
109     <div class="main" id="main3">div4</div>
110     <div class="main" id="main4">div5</div>
111 </div>
112 </body>
113 </html>

 

posted on 2016-02-16 16:17  理智与情感  阅读(689)  评论(0编辑  收藏  举报