鼠标拖拽文件到指定区域

2017-10-24  本文已影响0人  星球小霸王
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8" />
    <title>Document</title>
    <!-- <script src="https://code.jquery.com/jquery-3.1.1.min.js"></script> -->
    <style>
        .content{
            width: 1200px;
            overflow:hidden;
            margin:0 auto;
        }
        .left{
            float:left;
            width: 600px;
            height: 600px;
            background:gray;
        }
        .right{
            float:right;
            width: 600px;
            height: 600px;
            background:lightgray;
        }
        .draglist{
            float:left;
            width: 280px;
            height: 100px;
            line-height:100px;
            text-align:center;
            font-size:28px;
            font-weight:bold;
            color:#999;
            margin:10px;
            background:lightcoral;
            cursor:move;
        }
        .item{
            float:left;
            width: 280px;
            height: 100px;
            line-height:100px;
            text-align:center;
            font-size:50px;
            font-weight:bold;
            color:#999;
            margin:10px;
            background:lightgoldenrodyellow;
        }
    </style>
</head>
<body>
    <div class="content">
        <div class="left">
            <div class="draglist" draggable="true">被拖动的块一</div>
            <div class="draglist" draggable="true">被拖动的块二</div>
            <div class="draglist" draggable="true">被拖动的块三</div>
            <div class="draglist" draggable="true">被拖动的块四</div>
        </div>
        <div class="right">
            <div class="item">方块1</div>
            <div class="item">方块2</div>
            <div class="item">方块3</div>
            <div class="item">方块4</div>
            <div class="item">方块5</div>
            <div class="item">方块6</div>
        </div>
    </div>
    <script>
        function $(el){
            return document.querySelectorAll(el)
        }
        var el = null;
        var curEle = null;
        var draglist = $(".draglist")
        
        for(var i=0;i<draglist.length;i++){
            draglist[i].ondragstart = function(e){
                e.dataTransfer.effectAllowed = 'move'
                el = e.target;
            }
        }


        $(".right")[0].ondragover = function(e){
            e.preventDefault();
        }

        $(".right")[0].ondragenter = function(e){
            curEle = e.target;
            if(curEle.className == "item"){
                curEle.style.backgroundColor = "green"
            }
        }

        $(".right")[0].ondragleave = function(e){
            leaveEle = e.target;
            if(leaveEle.className == "item"){
                leaveEle.style.backgroundColor = "lightgoldenrodyellow"
            }
        }

        $(".right")[0].ondrop = function(e){
            if(curEle.className == "item"){
                curEle.parentNode.insertBefore(el,curEle)
                curEle.style.backgroundColor = "lightgoldenrodyellow"
            }
        }

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