chromium/third_party/google-closure-library/closure/goog/demos/dragger.html

<!DOCTYPE html>
<html>
<!--
Copyright The Closure Library Authors. All Rights Reserved.

Use of this source code is governed by the Apache License, Version 2.0.
See the COPYING file for details.
-->
<head>
<title>goog.fx.Dragger</title>
<script src="../base.js"></script>
<script>

goog.require('goog.events');
goog.require('goog.events.EventType');
goog.require('goog.fx.Dragger');
goog.require('goog.fx.Dragger.EventType');

</script>
<link rel="stylesheet" href="css/demo.css">
<style>

#stopper {
  position: absolute;
  padding: 5px;
  right: 20px;
  top: 20px;
  width: 100px;
  height: 100px;
  background: pink;
  border: 1px solid red;
}

#out {
  display: inline;
  background: #eee;
  border: 1px solid #ddd;
  padding: 5px;
}

</style>
</head>
<body>

<h1>goog.fx.Dragger</h1>

<p>This demo shows how to use a dragger to capture mouse move events. It tests
that you can drag things outside the window and that alerts ends the dragging.

<h2 id=test onclick="alert('Click')">Drag me</h2>
<pre id=out>Status</pre>

<div id=stopper onmouseover="alert('Stop!')">Drag over me to generate an
alert</div>

<script>

function update(e) {
  print(e.clientX + ', ' +  e.clientY);
}

function print(s) {
  document.getElementById('out').innerHTML = s;
}

var testEl = document.getElementById('test');

goog.events.listen(testEl, goog.events.EventType.MOUSEDOWN, function(e) {

  var d = new goog.fx.Dragger(testEl);
  d.addEventListener(goog.fx.Dragger.EventType.DRAG, function(e) {
    update(e);
  });
  d.addEventListener(goog.fx.Dragger.EventType.END, function(e) {
    print('finish');
    d.dispose();
  });
  d.startDrag(e);
});

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