draggable and droppable example

以下是一个拖拽的例子(在参考jquery ui拖拽中的demo中,有很多好的例子)。在drop方法中,ui.draggable用于获取被拖的jquery对象。

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="utf-8">
 <title>jQuery UI Droppable - Shopping Cart Demo</title>
 <link rel="stylesheet" href="http://www.cnblogs.com/themes/base/jquery.ui.all.css">
 <script src="http://www.cnblogs.com/jquery-1.7.2.js"></script>
 <script src="http://www.cnblogs.com/ui/jquery.ui.core.js"></script>
 <script src="http://www.cnblogs.com/ui/jquery.ui.widget.js"></script>
 <script src="http://www.cnblogs.com/ui/jquery.ui.mouse.js"></script>
 <script src="http://www.cnblogs.com/ui/jquery.ui.draggable.js"></script>
 <script src="http://www.cnblogs.com/ui/jquery.ui.droppable.js"></script>
 <script src="http://www.cnblogs.com/ui/jquery.ui.sortable.js"></script>
 <script src="http://www.cnblogs.com/ui/jquery.ui.accordion.js"></script>
 <link rel="stylesheet" href="../demos.css">
 <style>
 h1 { padding: .2em; margin: 0; }
 #products { float:left; 500px; margin-right: 2em; }
 #cart { 200px; float: left; }
 /* style the list to maximize the droppable hitarea */
 #cart ol { margin: 0; padding: 1em 0 1em 3em; }
 </style>
 <script>
 $(function() {
  $( "#catalog" ).accordion();
  $( "#catalog li" ).draggable({
   appendTo: "body",
   helper: "clone"
  });
  $( "#cart ol" ).droppable({
   activeClass: "ui-state-default",
   hoverClass: "ui-state-hover",
   accept: ":not(.ui-sortable-helper)",
   drop: function( event, ui ) {
    $( this ).find( ".placeholder" ).remove();
    alert("wangle notice: " +  ui.draggable.children() );
    $( "<li></li>" ).text( ui.draggable.text() ).appendTo( this );
   }
  }).sortable({
   items: "li:not(.placeholder)",
   sort: function() {
    // gets added unintentionally by droppable interacting with sortable
    // using connectWithSortable fixes this, but doesn't allow you to customize active/hoverClass options
    $( this ).removeClass( "ui-state-default" );
   }
  });
 });
 </script>
</head>
<body>

<div class="demo">
 
<div id="products">
 <h1 class="ui-widget-header">Products</h1> 
 <div id="catalog">
  <h3><a href="#">T-Shirts</a></h3>
  <div>
   <ul>
    <li>Lolcat Shirt</li>
    <li>Cheezeburger Shirt</li>
    <li>Buckit Shirt</li>
   </ul>
  </div>
  <h3><a href="#">Bags</a></h3>
  <div>
   <ul>
    <li>Zebra Striped</li>
    <li>Black Leather</li>
    <li>Alligator Leather</li>
   </ul>
  </div>
  <h3><a href="#">Gadgets</a></h3>
  <div>
   <ul>
    <li>iPhone</li>
    <li>iPod</li>
    <li>iPad</li>
   </ul>
  </div>
 </div>
</div>

<div id="cart">
 <h1 class="ui-widget-header">Shopping Cart</h1>
 <div class="ui-widget-content">
  <ol>
   <li class="placeholder">Add your items here</li>
  </ol>
 </div>
</div>

</div><!-- End demo -->

<div class="demo-description">
<p>Demonstrate how to use an accordion to structure products into a catalog and make use drag and drop for adding them to a shopping cart, where they are sortable.</p>
</div><!-- End demo-description -->

</body>
</html>

原文地址:https://www.cnblogs.com/wangle1001986/p/2643207.html