（jQuery 插件）在多项选择测验中拖放答案

Question

我正在制作一个网页，用户必须在测验中将两个列表中的元素连接起来。 例如，假设有一个测验问题，您有两个列表，一个是国家/地区，一个是大写字母，用户必须将大写字母连接到正确的国家/地区。

优选地，应该有一种方法让用户可以将元素从第二个列表拖动到第一个列表元素旁边的区域。 像这样：

在这里，您可以将蓝色框拖动到灰色矩形中。

是否有一个 jQuery 插件或其他 JavaScript 库可以做这样的事情？ 还是我必须自己实施？ 如果是这样，有没有人有一些指向描述类似问题解决方案的文章的指针，或者关于如何最好地解决这个问题的想法？

Answer 1

考虑使用jQuery UI droppable吗？ 它几乎可以满足您的需求。 只需将灰色框设置为可放置，将蓝色框设置为可拖动。

您可能会使用还原选项。

Answer 2

您可以使用 Jquery-UI，请参阅此小提琴：

https://jsfiddle.net/esedic/xg9f3hhy/

HTML：

<h3>Treatment Areas</h3>
<div class="container">
  <div data-value="1" class="draggable">
    <p>Back</p>
  </div>
  <div data-value="1" class="droppable">
    <div class="droparea"></div>
    <p>Area 1</p>
  </div>
</div>
<div class="container">
  <div data-value="2" class="draggable">
    <p>Adomen</p>
  </div>
  <div data-value="2" class="droppable">
    <div class="droparea"></div>
    <p>Area 2</p>
  </div>
</div>
<div class="container">
  <div data-value="3" class="draggable">
    <p>Chest</p>
  </div>
  <div data-value="3" class="droppable">
    <div class="droparea"></div>
    <p>Area 3</p>
  </div>
</div>

查询：

$('.draggable').draggable({

  //cursor: 'move'
});
$('.droppable').droppable({
  drop: function(event, ui) {
    $(this).addClass('ui-state-highlight');
    ui.draggable.position({
      of: $(this),
      my: 'left top',
      at: 'left+6 top+6'
    });
    $('.draggable').each(function(i) { 
      $(this).data('value', i+1); 
    }).filter(':first').trigger('listData');
  }
});

$('.draggable').on('listData', function() {
  $('.droppable').each(function() {
    console.log( $(this).text() + ' - ' + $(this).data('value') ); 
  });
});

社会保障：

body {
    padding: 1em;
}

.draggable {
    width: 100px;
    padding: 5px;
    float: left;
    margin: 10px 10px 10px 0;
    background: red;
    color: #fff;
    cursor: move;

      p {
      margin: 2px 0;
  }
}

.droppable {
    width: 300px;
    padding: 5px 10px 5px 5px;
    float: right;
    margin: 10px;
    border: 1px solid #ddd;

    p {
      float: right;
      width: 50px;
      height: 30px;
      padding: 5px 5px 0 0;
      text-align: center;
      margin: 0;
  }
}

.container {
    clear: both;
    margin: 10px;
    width: 100%;
}

.droparea {
    float: left;
    border: 1px dashed red;
    width: 108px;
    height: 30px;
}

Answer 3

这个拖放 Javascript 代码，它在浏览器上有效，但在 ipad 的 ibook 应用程序中无效，请给我解决方案，即使我使用了 jquery.ui.touch-punch.min.js

  <?xml version="1.0" encoding="UTF-8"?>  
    <!DOCTYPE html> 
     <html xmlns="http://www.w3.org/1999/xhtml" xmlns:epub="http://www.idpf.org/2007/OEBPS" xmlns:ibooks="http://apple.com/ibooks/html-extensions">
<head>
    <title>Demo 2: Drag and drop</title>

    <style type="text/css">
    /* CSS for the demo. CSS needed for the scripts are loaded dynamically by the scripts */
    #mainContainer{
        width:600px;
        margin:0 auto;
        margin-top:10px;
        border:1px solid #000;
        padding:2px;
    }

    #capitals{
        width:200px;
        float:left;
        border:1px solid #000;
        background-color:#E2EBED;
        padding:3px;
        height:400px;
    }
    #countries{
        width:300px;
        float:right;
            margin: 4px 61px 3px -8px;
        height:400px;
    }   
    #labels{
        width: 120px;
        float:right;
              margin: -403px 116px 3px -8px;
        height:400px;
        /*border: 1px solid red;*/
    }   
    .dragableBox,.dragableBoxRight{
        width:80px;
            height: 10px;
        border:1px solid #000;
        background-color:#FFF;      
        margin-bottom:5px;
        padding:10px;
        font-weight:bold;
        text-align:center;
    }
    .dragableBox,.labelBoxRight{
        width:80px;
            height: 10px;
        border:1px solid #000;
        background-color:#FFF;      
        margin-bottom:5px;
        padding:10px;
        font-weight:bold;
        text-align:center;
    }
    div.dragableBoxRight{
    height: 31px;
        width:110px;
        /*float:left;*/
        margin-right:5px;
        padding:5px;
        background-color:#D3D3D3;
        border: 1px dashed;
    }
    div.labelBoxRight{
               height: 31px;
        width:110px;
        /*float:left;*/
        margin-right:5px;
        padding:5px;
        background-color:#E2EBED;
    }
    .dropBox{
        width:190px;
        border:1px solid #000;
        background-color:#E2EBED;
        height:400px;
        margin-bottom:10px;
        padding:3px;
        overflow:auto;
    }       
    a{
        color:#F00;
    }

    .clear{
        clear:both;
    }
    img{
        border:0px;
    }   
    </style>    

</head>
<body>  

    <div id="mainContainer">

        <div id="capitals">

            <div id="dropContent">
                <div class="dragableBox" id="box1">Br<sup>&#x002B;</sup></div>
                <div class="dragableBox" id="box2">Br<sup>&#x2212;</sup></div>
                <div class="dragableBox" id="box3">CN<sup>&#x2212;</sup></div>
                <div class="dragableBox" id="box4">NO<sub>2</sub><sup>&#x002B;</sup></div>
                <div class="dragableBox" id="box5">NO<sub>2</sub><sup>&#x2212;</sup></div>
                <div class="dragableBox" id="box6">NH<sub>2</sub><sup>&#x2212;</sup></div>
                <div class="dragableBox" id="box7">RC=C<sup>&#x2212;</sup></div>
                <div class="dragableBox" id="box8">MeCO<sup>&#x002B;</sup></div>
            </div>
        </div>
        <div id="countries">
            <div id="box106" class="dragableBoxRight"></div>
            <div id="box107" class="dragableBoxRight"></div>
            <div id="box101" class="dragableBoxRight"></div>
            <div id="box104" class="dragableBoxRight"></div>
            <div id="box105" class="dragableBoxRight"></div>
            <div id="box102" class="dragableBoxRight"></div>
            <div id="box103" class="dragableBoxRight"></div>
            <div id="box108" class="dragableBoxRight"></div>


        </div>
        <div id="labels">
            <div id="boxl106" class="labelBoxRight">nucleophiles</div>
            <div id="boxl107" class="labelBoxRight">Electrophiles</div>
            <div id="boxl101" class="labelBoxRight">nucleophiles</div>
            <div id="boxl104" class="labelBoxRight">Electrophiles</div>
            <div id="boxl105" class="labelBoxRight">nucleophiles</div>
            <div id="boxl102" class="labelBoxRight">Electrophiles</div>
            <div id="boxl103" class="labelBoxRight">nucleophiles</div>
            <div id="boxl104" class="labelBoxRight">nucleophiles</div>

        </div>
        <div class="clear"></div>
        <div class="konaBody"></div>
    </div>

<div id="debug"></div>
<input type="button" value="reset" name="reset" onclick="r1();"/>
      <script type="text/javascript" src="js/jquery.min.js"></script>
    <script src="js/jquery-ui.min.js" type="text/javascript"></script>
<script src="js/jquery-1.9.1.js"></script>
     <script src="js/jquery-ui.js"></script>
     <script type="text/javascript" src="js/drag-drop-custom.js"></script>
<script src="js/jquery.ui.touch-punch.js"></script>
<script src="js/jquery.ui.touch-punch.min.js"></script>
<script src="js/hammer.min.js"></script>
   <!-- <link href="css/jquery-ui.css" rel="stylesheet"
        type="text/css" />-->

<script type="text/javascript">
     <![CDATA[

// Custom drop action for the country boxes
function dropItems(idOfDraggedItem,targetId,x,y)
{
    var targetObj = document.getElementById(targetId);  // Creating reference to target obj
    var subDivs = targetObj.getElementsByTagName('div');    // Number of subdivs
    if(subDivs.length>0 && targetId!='capitals')return; // Sub divs exists on target, i.e. element already dragged on it. => return from function without doing anything
    var sourceObj = document.getElementById(idOfDraggedItem);   // Creating reference to source, i.e. dragged object
    var numericIdTarget = targetId.replace(/[^0-9]/gi,'')/1;    // Find numeric id of target
    var numericIdSource = idOfDraggedItem.replace(/[^0-9]/gi,'')/1; // Find numeric id of source

    if(numericIdTarget-numericIdSource==100){   // In the html above, there's a difference in 100 between the id of the country and it's capital(example:
                                                // Oslo have id "box1" and Norway have id "box101", i.e. 1 + 100.
        sourceObj.style.backgroundColor='#0F0'; // Set green background color for dragged object
    }else{
        sourceObj.style.backgroundColor=''; // Reset back to default white background color
    }
    if(targetId=='capitals'){
    // Target is the capital box - append the dragged item as child of first sub div, i.e. as child of <div id="dropContent">
        targetObj = targetObj.getElementsByTagName('div')[0];   

    }
    targetObj.appendChild(sourceObj);   // Append   
}

function r1()
{


}

var dragDropObj = new DHTMLgoodies_dragDrop();  // Creating drag and drop object

// Assigning drag events to the capitals
dragDropObj.addSource('box1',true); // Make <div id="box1"> dragable. slide item back into original position after drop
dragDropObj.addSource('box2',true); // Make <div id="box2"> dragable. slide item back into original position after drop
dragDropObj.addSource('box3',true); // Make <div id="box3"> dragable. slide item back into original position after drop
dragDropObj.addSource('box4',true); // Make <div id="box4"> dragable. slide item back into original position after drop
dragDropObj.addSource('box5',true); // Make <div id="box4"> dragable. slide item back into original position after drop
dragDropObj.addSource('box6',true); // Make <div id="box4"> dragable. slide item back into original position after drop
dragDropObj.addSource('box7',true); // Make <div id="box4"> dragable. slide item back into original position after drop
dragDropObj.addSource('box8',true); 

// Assigning drop events on the countries
dragDropObj.addTarget('box101','dropItems'); // Set <div id="leftColumn"> as a drop target. Call function dropItems on drop
dragDropObj.addTarget('box102','dropItems'); // Set <div id="leftColumn"> as a drop target. Call function dropItems on drop
dragDropObj.addTarget('box103','dropItems'); // Set <div id="leftColumn"> as a drop target. Call function dropItems on drop
dragDropObj.addTarget('box104','dropItems'); // Set <div id="leftColumn"> as a drop target. Call function dropItems on drop
dragDropObj.addTarget('box105','dropItems'); // Set <div id="leftColumn"> as a drop target. Call function dropItems on drop
dragDropObj.addTarget('box106','dropItems'); // Set <div id="leftColumn"> as a drop target. Call function dropItems on drop
dragDropObj.addTarget('box107','dropItems');
dragDropObj.addTarget('box108','dropItems'); // Set <div id="leftColumn"> as a drop target. Call function dropItems on drop
dragDropObj.addTarget('capitals','dropItems'); // Set <div id="leftColumn"> as a drop target. Call function dropItems on drop

dragDropObj.init(); // Initizlizing drag and drop object
    ]]>
</script>
</body>
</html>