前端拖拽div排序

最新推荐文章于 2025-05-11 03:08:53 发布

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最新推荐文章于 2025-05-11 03:08:53 发布

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文章标签： html javascript

本文链接：https://blog.youkuaiyun.com/weixin_46060121/article/details/116424183

版权

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    .column {
      height: 200px;
      width: 200px;
      float: left;
      border: 2px solid black;
      background-color: green;
      margin-right: 5px;
      text-align: center;
      cursor: move;
      font-size: 20px;
      font-weight: 900;
      color: red;
    }
    .column.over {
      border: 3px dashed  #000;
    }
  </style>
</head>
<body>
  <div id="columns">
    <div class="column" draggable="true">div1</div>
    <div class="column" draggable="true">div2</div>
    <div class="column" draggable="true">div3</div>
  </div>

  <script>
    var columns = document.querySelectorAll('#columns .column');
    var dragEl = null;
    
    [].forEach.call(columns,function(column){
      column.addEventListener("dragstart",domdrugstart,false);
      column.addEventListener('dragenter', domdrugenter, false);
      column.addEventListener('dragover', domdrugover, false);
      column.addEventListener('dragleave', domdrugleave, false);
      column.addEventListener('drop', domdrop, false);
      column.addEventListener('dragend', domdrapend, false);    
    });

    function domdrugstart(e) {
      e.target.style.opacity = '0.5';
      dragEl = this;
      e.dataTransfer.effectAllowed = "move";
      e.dataTransfer.setData("text/html",this.innerHTML);
    }

    function domdrugenter(e) {
      e.target.classList.add('over');
    }

    function domdrugover(e) {
      if (e.preventDefault) {
        e.preventDefault(); 
      }
      e.dataTransfer.dropEffect = 'move';
      return false;
    }

    function domdrugleave(e) {
      e.target.classList.remove('over'); 
    }   

    function domdrop(e) {
      if (e.stopPropagation) {
        e.stopPropagation();
      }
      // 位置互换
      if (dragEl != this) {
        dragEl.innerHTML = this.innerHTML;
        this.innerHTML = e.dataTransfer.getData('text/html');
        console.log(this);
      }  
      return false;
    }

    function domdrapend(e) {
      [].forEach.call(columns, function (column) {
        column.classList.remove('over');
        column.style.opacity = '1';
      });

    }    

  </script>
</body>
</html>