blob: 6e6347e60d26b250ea3c070fcfb1182d9d4d78dc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
<!DOCTYPE HTML>
<meta charset=utf-8>
<title>Element Timing: do not observe text in shadow tree</title>
<style>
body {
margin: 0;
}
</style>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/element-timing-helpers.js"></script>
<div id='target'></div>
<script>
async_test(function (t) {
assert_implements(window.PerformanceElementTiming, "PerformanceElementTiming is not implemented");
const observer = new PerformanceObserver(
t.step_func_done(function(entryList) {
assert_unreached('Should not observe text elements in shadow trees!');
})
);
observer.observe({entryTypes: ['element']});
// We add the text during onload to be sure that the observer is registered
// in time for it to observe the element timing.
window.onload = () => {
// Add text of width equal to 100 and height equal to 100.
const text = document.createElement('p');
text.innerHTML = 'Text';
text.setAttribute('elementtiming', 'my_text');
const shadowRoot = document.getElementById('target').attachShadow({mode: 'open'});
shadowRoot.appendChild(text);
t.step_timeout(() => {
// Assume entry was not dispatched, so test passes.
t.done();
}, 500);
};
}, 'Text in shadow tree with elementtiming attribute is not observable.');
</script>
|
