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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Clicking on the html element itself fires a click event</title>
<link rel="author" title="Chris Rebert" href="http://chrisrebert.com">
<link rel="help" href="https://w3c.github.io/uievents/#event-type-click">
<meta name="flags" content="interact">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
html {
background-color: blue;
margin: 0;
}
body {
background-color: red;
height: 0;
margin: 0;
}
#guineapig {
background-color: white;
padding-top: 50px;/* Text is easier to see when it's not at the exact top of the viewport */
margin-top: 0;/* Ensure there's no exposed html element above this */
margin-bottom: 100px;/* Expose an area of the html element itself */
}
#other {
background-color: white;
height: 100vh;/* Push the rest of the html element outside of the viewport */
}
</style>
</head>
<body>
<p id="guineapig">Click on the blue area below. If a "PASS" result appears, the test passes; otherwise, it fails.</p>
<p id="other"> </p><!-- Needed to prevent the margin from collapsing -->
<script>
setup({explicit_timeout: true});
async_test(function(t) {
document.documentElement.addEventListener('click', function (event) {
t.step(function () {
assert_equals(event.target, document.documentElement, 'target of click event must be the html element');
assert_equals(event.eventPhase, Event.AT_TARGET, 'click event must propagate to the html element at the Target Phase');
var passed = event.target === document.documentElement && event.eventPhase === Event.AT_TARGET;
document.documentElement.style.backgroundColor = 'white';
document.getElementById('other').style.height = 'auto';
var guineapig = document.getElementById('guineapig');
guineapig.style.marginBottom = '16px';
if (passed) {
guineapig.textContent = 'PASS';
guineapig.style.backgroundColor = 'green';
}
t.done();
});
}, false);
}, "Clicking on the html element itself should fire a click event targeted at the html element");
</script>
</body>
</html>
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