<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/html4/loose.dtd">

<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  <title>Changing transition values during transition should not affect it</title>
  <style type="text/css" media="screen">
    #box {
      height: 100px;
      width: 100px;
      background-color: blue;
      -webkit-transition-duration: 1s;
      -webkit-transition-timing-function: linear;
      -webkit-transition-property: -webkit-transform;
    }
  </style>
  <script type="text/javascript" charset="utf-8">
    if (window.layoutTestController) {
      layoutTestController.dumpAsText();
      layoutTestController.waitUntilDone();
    }
    
    result = "PASS";
    const defaultTolerance = 10;
    
    function isEqual(actual, desired, tolerance)
    {
        if (tolerance == undefined || tolerance == 0)
            tolerance = defaultTolerance;
        var diff = Math.abs(actual - desired);
        return diff < tolerance;
    }
    
    function changeValues()
    {
        var box = document.getElementById('box');
        box.style.webkitTransitionDuration = "0.1s";
    }
    
    function check1()
    {
        var t = window.getComputedStyle(document.getElementById('box')).webkitTransform;
        var t = t.split("(");
        var t = t[1].split(",");
        if (!isEqual(t[4], 50, defaultTolerance))
            result = "FAIL(was:"+t[4]+", s/b:50)";
    }

    function check2()
    {
        if (result != "PASS")
            return;
            
        var t = window.getComputedStyle(document.getElementById('box')).webkitTransform;
        var t = t.split("(");
        var t = t[1].split(",");
        if (!isEqual(t[4], 0, defaultTolerance))
            result = "FAIL(was:"+t[4]+", s/b:0)";
    }
    
    function goBack()
    {
        var box = document.getElementById('box');
        box.style.webkitTransform = 'translateX(0)';
    }

    function start()
    {
        var box = document.getElementById('box');
        setTimeout("changeValues()", 100);
        setTimeout("check1()", 600);
        setTimeout("check2()", 1300);
        box.style.webkitTransform = 'translateX(100px)';
        
        window.setTimeout(function() {
            document.getElementById('result').innerHTML = result;
            if (window.layoutTestController)
                layoutTestController.notifyDone();
        }, 1400);
    }
    
    window.addEventListener('load', start, false);
    document.addEventListener('webkitTransitionEnd', goBack, false);
    
  </script>
</head>
<body>

<p>Test changes -webkit-transition-duration while the transition is running to ensure that the running transition is not affected</p>
<div id="box">
</div>
<div id="result">
</div>
</body>
</html>