html5dev/dragdrop.html at master · kzth/html5dev · GitHub

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<!doctype html>
<html lang=ja>
  <head>
    <title></title>
    <meta charset=utf-8>
    <style>
      div#drag {
        width: 100px;
        height: 100px;
        background-color: #F00;
      }

      div#drop {
        width: 300px;
        height: 300px;
        background-color: #999999;
      }
    </style>
  </head>
  <body>
    <!-- ドラッグ＆ドロップのの処理 -->
    <script type="text/javascript">
      window.addEventListener("load", function() {
        var dragElm = document.getElementById("drag");
        var dropElm = document.getElementById("drop");

        dragElm.addEventListener("dragstart", function(event) {
          event.dataTransfer.setData("text", event.target.id);
        }, true);

        dragElm.addEventListener("drag", function(event) {
          event.target.style.backgroundColor = "#ffa500";
        }, true);

        dragElm.addEventListener("dragend", function(event) {
          event.target.style.backgroundColor = "#ff0000";
        }, true);

        dropElm.addEventListener("dragenter", function(event) {
          dropElm.style.backgroundColor = "#c0c0c0";
          event.preventDefault();
        }, true);

        dropElm.addEventListener("dragover", function(event) {
          dropElm.style.backgroundColor = "#c0c0c0";
          event.preventDefault();
        }, true);

        dropElm.addEventListener("dragleave", function(event) {
          dropElm.style.backgroundColor = "#696969";
        }, true);

        dropElm.addEventListener("drop", function(event) {
          var id = event.dataTransfer.getData("text");
          var elm = document.getElementById(id);
          event.currentTarget.appendChild(elm);
          event.preventDefault();
        }, true);
      }, true);
    </script>
    <div id="drag" draggable="true">ドラッグ可能です</div>
    <div id="drop"></div>
  </body>
</html>