-1 
    <!DOCTYPE html>
<html lang="en">

<head>
<meta charset=utf-8 />
<title>Basic Drag and Drop</title>
<style>
#drop {
  min-height: 200px;
  width: 200px;
  border: 3px dashed #ccc;
  margin: 10px;
  padding: 10px;
  clear: left;
}
p {
  margin: 10px 0;
}
#triangle {

  background: url(images/triangle.jpg) no-repeat;
}
#square {
  background: url(images/square.gif) no-repeat;
}
#circle {
  background: url(images/circle.jpg) no-repeat;
}
#red {
  background: url(images/red.jpg) no-repeat;
}
#yellow {
  background: url(images/yellow.jpg) no-repeat;
}
#green {
  background: url(images/green.jpg) no-repeat;
}
.drag {
  height: 48px;
  width: 48px;
  float: left;
  -khtml-user-drag: element;
  margin: 10px;
}
</style>
<script>
var addEvent = (function () {
  if (document.addEventListener) {
    return function (el, type, fn) {
      if (el && el.nodeName || el === window) {
        el.addEventListener(type, fn, false);
      } else if (el && el.length) {
        for (var i = 0; i < el.length; i++) {
          addEvent(el[i], type, fn);
        }
      }
    };
  } else {
    return function (el, type, fn) {
      if (el && el.nodeName || el === window) {
        el.attachEvent('on' + type, function () { return fn.call(el, window.event); });
      } else if (el && el.length) {
        for (var i = 0; i < el.length; i++) {
          addEvent(el[i], type, fn);
        }
      }
    };
  }
})();

(function () {

var pre = document.createElement('pre');
pre.id = "view-source"

// private scope to avoid conflicts with demos
addEvent(window, 'click', function (event) {
  if (event.target.hash == '#view-source') {
    // event.preventDefault();
    if (!document.getElementById('view-source')) {
      // pre.innerHTML = ('<!DOCTYPE html>\n<html>\n' + document.documentElement.innerHTML + '\n</html>').replace(/[<>]/g, function (m) { return {'<':'&lt;','>':'&gt;'}[m]});
      var xhr = new XMLHttpRequest();

      // original source - rather than rendered source
      xhr.onreadystatechange = function () {
        if (this.readyState == 4 && this.status == 200) {
          pre.innerHTML = this.responseText.replace(/[<>]/g, function (m) { return {'<':'&lt;','>':'&gt;'}[m]});
          prettyPrint();
        }
      };

      document.body.appendChild(pre);
      // really need to be sync? - I like to think so
      xhr.open("GET", window.location, true);
      xhr.send();
    }
    document.body.className = 'view-source';

    var sourceTimer = setInterval(function () {
      if (window.location.hash != '#view-source') {
        clearInterval(sourceTimer);
        document.body.className = '';
      }
    }, 200);
  }
});

})();
</script>

<style id="jsbin-css">

</style>
</head>
<body>
  <div class="drag" id="triangle" draggable="true"></div>
  <div class="drag" id="square" draggable="true"></div>
  <div class="drag" id="circle" draggable="true"></div>
  <div class="drag" id="red" draggable="true"></div>
  <div class="drag" id="yellow" draggable="true"></div>
  <div class="drag" id="green" draggable="true"></div>

  <div id="drop"></div>
<script>
function cancel(e) {
  if (e.preventDefault) {
    e.preventDefault();
  }
  return false;
}

var dragItems = document.querySelectorAll('[draggable=true]');

for (var i = 0; i < dragItems.length; i++) {
  addEvent(dragItems[i], 'dragstart', function (event) {
    // store the ID of the element, and collect it on the drop later on
    event.dataTransfer.setData('Text', this.id);




  });
}

var drop = document.querySelector('#drop');

// Tells the browser that we *can* drop on this target
addEvent(drop, 'dragover', cancel);
addEvent(drop, 'dragenter', cancel);
addEvent(drop, 'drop', function (e) {
  if (e.preventDefault) e.preventDefault(); // stops the browser from redirecting off to the text.

  this.innerHTML += '<p>' + e.dataTransfer.getData('Text') + '</p>';
  return false;
});
</script>
</body>
</html>

HTML5を使用してテキストボックス内のテキストをダブルクリックして削除する方法は? このhtml5のテキストボックスからテキストを削除する方法に問題があります。物は中にドラッグアンドドロップできますが、中にドラッグされたものを削除したい...その中のアイテムを削除するのに問題があります。

4

1 に答える 1

-1

これを使ってみてください。

document.getElementById('selectID').ondblclick = function(){
alert(this.selectedIndex);//remove your text here
};
于 2013-09-04T06:01:19.040 に答える