jQuery UI Droppable classes选项

jQuery UI由使用HTML、CSS和jQuery实现的GUI小工具、视觉效果和主题组成。 jQuery UI非常适合为网页构建UI界面。

jQuery UI Droppable classes选项是用来添加额外的类到widget的元素。

语法:

用classes选项初始化dropable。

$( "#divID" ).droppable({
 classes: {
   "ui-droppable": "highlight"
 }
});

设置classes选项的值。

$( "#divID" ).droppable( "option", 
    "classes.ui-droppable", "highlight" );

获取classes选项的值。

var themeClass = $( "#divID" )
    .droppable( "option", "classes.ui-droppable" );

CDN链接：首先，添加你的项目需要的jQuery UI脚本。

<link rel=”stylesheet” href=”//code.jquery.com/ui/1.12.1/themes/smoothness/jquery-ui.css”>
<script src=”//code.jquery.com/jquery-1.12.4.js”></script>
<script src=”//code.jquery.com/ui/1.12.1/jquery-ui.js”></script>

例子：这个例子演示了jQuery UI Droppable classes选项。

<!doctype html>
<html lang="en">
  
<head>
    <meta charset="utf-8">
    <link rel="stylesheet" 
          href=
"//code.jquery.com/ui/1.12.1/themes/smoothness/jquery-ui.css">
    <script src=
"//code.jquery.com/jquery-1.12.4.js">
  </script>
    <script src=
"//code.jquery.com/ui/1.12.1/jquery-ui.js">
  </script>
    <style>
        h1 {
            color: green;
        }
  
        div {
            color: white;
            display: flex;
            justify-content: center;
            align-items: center;
            text-align: center;
        }
  
        #div2 {
            width: 150px;
            height: 150px;
            background: blue;
        }
  
        #div1 {
            position: absolute;
            left: 250px;
            width: 200px;
            height: 200px;
            background: green;
            color: #fff;
        }
    </style>
</head>
  
<body>
    <center>
        <h1 style="color:green;">
            GeeksforGeeks
        </h1>
        <h3>jQuery UI Droppable classes Option</h3>
        <div id="div1">Drop here</div>
        <div id="div2">Drag me</div>
    </center>
    <script>
         $(document).ready(function () {$ ("#div2").draggable();
            $("#div1").droppable({
                classes: {
                    "ui-droppable": "highlight"
                }
            });
        });
    </script>
</body>
  
</html>

输出:

jQuery UI Droppable classes选项