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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
<!DOCTYPE html>
<meta charset="utf8">
<title>delegatesFocus on disabled form-associated custom elements</title>
<link rel="author" href="mailto:avandolder@mozilla.com">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
class CustomControl extends HTMLElement {
static get formAssociated() {return true;}
constructor() {
super();
this.internals = this.attachInternals();
this.attachShadow({mode: "open", delegatesFocus: true});
this.shadowRoot.append(
document.querySelector("template").content.cloneNode(true)
);
this.eventFired = false;
this.addEventListener("focus", () => this.eventFired = true);
}
}
customElements.define("custom-control", CustomControl)
</script>
<template>
<div tabindex=0 id="target">
<slot></slot>
</div>
</template>
<form>
<custom-control disabled>Text</custom-control>
</form>
<script>
let focusinPropagated = false;
let focusoutPropagated = false;
const form = document.querySelector("form");
form.addEventListener("focusin", () => focusinPropagated = true);
form.addEventListener("focusout", () => focusoutPropagated = true);
test(() => {
const element = document.querySelector("custom-control");
element.focus();
assert_true(element.eventFired, "Focus event fired on custom control");
assert_true(focusinPropagated, "FocusIn event propagated through control");
element.blur();
assert_true(focusoutPropagated, "FocusOut event propagated through control");
}, "Focus events fire on disabled form-associated custom elements with delegatesFocus");
</script>
|
