jQuery imitation 360 navigation page icon drag sorting effect code sharing

jQuery imitation 360 navigation page icon drag sorting effect code sharing_jquery

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Release： 2016-05-16 15:43:09

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jquery realizes dragging and reordering of 360 browser navigation page icons. The source code is a code that imitates dragging and sorting of website icons on the 360 browser navigation page. This code is suitable for use on all web pages. Friends who are interested can learn it.

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The 360 navigation page icon drag sorting effect code shared with everyone is as follows

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>360导航页图标拖动排序效果代码</title>
<script src="js/jq.js"></script>
<script>
 $(function() {
 function Pointer(x, y) {
  this.x = x ;
  this.y = y ;
 }
 function Position(left, top) {
  this.left = left ;
  this.top = top ;
 }
 $(".item_content .item").each(function(i) {
  this.init = function() { // 初始化
  this.box = $(this).parent() ;
  $(this).attr("index", i).css({
   position : "absolute",
   left : this.box.offset().left,
   top : this.box.offset().top
  }).appendTo(".item_content") ;
  this.drag() ;
  },
  this.move = function(callback) { // 移动
  $(this).stop(true).animate({
   left : this.box.offset().left,
   top : this.box.offset().top
  }, 500, function() {
   if(callback) {
   callback.call(this) ;
   }
  }) ;
  },
  this.collisionCheck = function() {
  var currentItem = this ;
  var direction = null ;
  $(this).siblings(".item").each(function() {
   if(
   currentItem.pointer.x > this.box.offset().left &&
   currentItem.pointer.y > this.box.offset().top &&
   (currentItem.pointer.x < this.box.offset().left + this.box.width()) &&
   (currentItem.pointer.y < this.box.offset().top + this.box.height())
   ) {
   // 返回对象和方向
   if(currentItem.box.offset().top < this.box.offset().top) {
    direction = "down" ;
   } else if(currentItem.box.offset().top > this.box.offset().top) {
    direction = "up" ;
   } else {
    direction = "normal" ;
   }
   this.swap(currentItem, direction) ;
   }
  }) ;
  },
  this.swap = function(currentItem, direction) { // 交换位置
  if(this.moveing) return false ;
  var directions = {
   normal : function() {
   var saveBox = this.box ;
   this.box = currentItem.box ;
   currentItem.box = saveBox ;
   this.move() ;
   $(this).attr("index", this.box.index()) ;
   $(currentItem).attr("index", currentItem.box.index()) ;
   },
   down : function() {
   // 移到上方
   var box = this.box ;
   var node = this ;
   var startIndex = currentItem.box.index() ;
   var endIndex = node.box.index(); ;
   for(var i = endIndex; i > startIndex ; i--) {
    var prevNode = $(".item_content .item[index="+ (i - 1) +"]")[0] ;
    node.box = prevNode.box ;
    $(node).attr("index", node.box.index()) ;
    node.move() ;
    node = prevNode ;
   }
   currentItem.box = box ;
   $(currentItem).attr("index", box.index()) ;
   },
   up : function() {
   // 移到上方
   var box = this.box ;
   var node = this ;
   var startIndex = node.box.index() ;
   var endIndex = currentItem.box.index(); ;
   for(var i = startIndex; i < endIndex; i++) {
    var nextNode = $(".item_content .item[index="+ (i + 1) +"]")[0] ;
    node.box = nextNode.box ;
    $(node).attr("index", node.box.index()) ;
    node.move() ;
    node = nextNode ;
   }
   currentItem.box = box ;
   $(currentItem).attr("index", box.index()) ;
   }
  }
  directions[direction].call(this) ;
  },
  this.drag = function() { // 拖拽
  var oldPosition = new Position() ;
  var oldPointer = new Pointer() ;
  var isDrag = false ;
  var currentItem = null ;
  $(this).mousedown(function(e) {
   e.preventDefault() ;
   oldPosition.left = $(this).position().left ;
   oldPosition.top = $(this).position().top ;
   oldPointer.x = e.clientX ;
   oldPointer.y = e.clientY ;
   isDrag = true ;
   currentItem = this ;
  }) ;
  $(document).mousemove(function(e) {
   var currentPointer = new Pointer(e.clientX, e.clientY) ;
   if(!isDrag) return false ;
   $(currentItem).css({
   "opacity" : "0.8",
   "z-index" : 999
   }) ;
   var left = currentPointer.x - oldPointer.x + oldPosition.left ;
   var top = currentPointer.y - oldPointer.y + oldPosition.top ;
   $(currentItem).css({
   left : left,
   top : top
   }) ;
   currentItem.pointer = currentPointer ;
   // 开始交换位置
   currentItem.collisionCheck() ;
  }) ;
  $(document).mouseup(function() {
   if(!isDrag) return false ;
   isDrag = false ;
   currentItem.move(function() {
   $(this).css({
    "opacity" : "1",
    "z-index" : 0
   }) ;
   }) ;
  }) ;
  }
  this.init() ;
 }) ;
 }) ;
</script>
<style>
.item_content ul {
 list-style:none;
}
.item_content ul li {
 width:200px;
 height:120px;
 float:left;
 margin:10px
}
.item_content {
 width:740px;
 height:460px;
 border:1px solid #ccc;
 margin:0 auto;
}
.item_content .item {
 width:200px;
 height:120px;
 line-height:120px;
 text-align:center;
 cursor:pointer;
 background:#ccc;
}
.item_content .item img {
 width:200px;
 height:120px;
 border-radius:6px;
}
</style>
</head>
<body>
 <div class="item_container">
 <div class="item_content">
  <ul>
  <li>
   <div class="item">
   <img src="images/youku.png" />
   </div>
  </li>
  <li>
   <div class="item">
   <img src="images/jd.png" />
   </div>
  </li>
  <li>
   <div class="item">
   <img src="images/taobao.png" />
   </div>
  </li>
  <li>
   <div class="item">
   <img src="images/fenghuan.png" />
   </div>
  </li>
  <li>
   <div class="item">
   <img src="images/souhu.png" />
   </div>
  </li>
  <li>
   <div class="item">
   <img src="images/wangyi.png" />
   </div>
  </li>
  <li>
   <div class="item">
   <img src="images/renren.png" />
   </div>
  </li>
  <li>
   <div class="item">
   <img src="images/360.png" />
   </div>
  </li>
  <li>
   <div class="item">
   <img src="images/360game.png" />
   </div>
  </li>
  </ul>
 </div>
 </div>
<div style="text-align:center;margin:50px 0; font:normal 14px/24px 'MicroSoft YaHei';">
<p>适用浏览器：IE8、360、FireFox、Chrome、Safari、Opera、傲游、搜狗、世界之窗. </p>
</div>
</body>
</html>

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