animations/change-keyframes-name.html

<!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>Test Changing Name of A Keyframes Rule Using CSSOM</title>
  <style type="text/css" media="screen">
    #box {
        position: relative;
        left: 0;
        top: 0;
        height: 100px;
        width: 100px;
        background-color: blue;
        -webkit-animation-duration: 0.5s;
        -webkit-animation-timing-function: linear;
        -webkit-animation-name: "bar";
    }
    @-webkit-keyframes "foo" {
        from { left: 100px; }
        40%  { left: 200px; }
        60%  { left: 200px; }
        to   { left: 300px; }
    }
    </style>
    <script src="resources/animation-test-helpers.js" type="text/javascript" charset="utf-8"></script>
    <script type="text/javascript" charset="utf-8">
    
    const expectedValues = [
      // [animation-name, time, element-id, property, expected-value, tolerance]
      [null, 0.25, "box", "left", 200, 20],
    ];

    function findKeyframesRule(rule)
    {
        var ss = document.styleSheets;
        for (var i = 0; i < ss.length; ++i) {
            for (var j = 0; j < ss[i].cssRules.length; ++j) {
                if (ss[i].cssRules[j].type == window.CSSRule.WEBKIT_KEYFRAMES_RULE && ss[i].cssRules[j].name == rule)
                    return ss[i].cssRules[j];
            }
        }
        
        return null;
    }
        
    function change()
    {
        // change keyframes name
        var keyframes = findKeyframesRule("foo");
        keyframes.name = "anim";
        document.getElementById('box').style.webkitAnimationName = "anim";

        runAnimationTest(expectedValues);
    }
    
    function setup()
    {
        if (window.testRunner) {
          testRunner.dumpAsText();
          testRunner.waitUntilDone();
          if (testRunner.pauseAnimationAtTimeOnElementWithId("bar", 0.5, "box"))
              document.getElementById("pre-result").innerHTML = "FAIL: animation is running";
          else
              document.getElementById("pre-result").innerHTML = "PASS: animation is not running";
        }
        
        setTimeout(change, 200);
    }
    
  </script>
</head>
<body onload="setup()">
This test starts by making sure the animation is not running, because the animation-name and the
name of they @keyframes rule do not match. Then it changes the name of the @keyframes rule so they 
match and makes sure the animation is now running.
<div id="box">
</div>
<div id="pre-result">
</div>
<div id="result">
</div>
</body>
</html>