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<!DOCTYPE html>
<meta charset="utf-8" />
<link rel="author" title="Keith Cirkel" href="mailto:keithamus@github.com" >
<link rel="author" title="Luke Warlow" href="mailto:lwarlow@igalia.com" >
<link
rel="help"
href="https://open-ui.org/components/interest-invokers.explainer/"
/>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="resources/invoker-utils.js"></script>
<body>
<script>
test((t) => {
const host = document.createElement("div");
t.add_cleanup(() => host.remove());
document.body.append(host);
const shadow = host.attachShadow({ mode: "closed" });
const slot = shadow.appendChild(document.createElement("slot"));
let childEvent = null;
let childEventTarget = null;
let childEventSource = null;
let hostEvent = null;
let hostEventTarget = null;
let hostEventSource = null;
slot.addEventListener("interest", (e) => {
childEvent = e;
childEventTarget = e.target;
childEventSource = e.source;
}, { once: true });
host.addEventListener("interest", (e) => {
hostEvent = e;
hostEventTarget = e.target;
hostEventSource = e.source;
}, { once: true });
const event = new InterestEvent("interest", {
bubbles: true,
source: slot,
composed: true,
});
slot.dispatchEvent(event);
assert_true(childEvent instanceof InterestEvent, "slot saw interest event");
assert_equals(childEventTarget, slot, "target is child inside shadow boundary");
assert_equals(childEventSource, slot, "source is child inside shadow boundary");
assert_equals(hostEvent, childEvent, "event dispatch propagates across shadow boundary");
assert_equals(hostEventTarget, host, "target is retargeted to shadowroot host");
assert_equals(hostEventSource, host, "source is retargeted to shadowroot host");
}, "InterestEvent propagates across shadow boundaries retargeting invoker source");
promise_test(async (t) => {
const host = document.createElement("div");
t.add_cleanup(() => host.remove());
document.body.append(host);
const shadow = host.attachShadow({ mode: "open" });
const button = shadow.appendChild(document.createElement("button"));
const interestee = host.appendChild(document.createElement("div"));
button.interestForElement = interestee;
button.style = "interest-delay: 0s";
let event = null;
let eventTarget = null;
let eventSource = null;
interestee.addEventListener("interest", (e) => {
event = e;
eventTarget = e.target;
eventSource = e.source;
},{ once: true });
await hoverOver(button);
assert_true(!!event,"InterestEvent gets fired");
assert_true(event instanceof InterestEvent);
assert_equals(eventTarget, interestee, "target is interestee");
assert_equals(eventSource, host, "interestee is host");
}, "cross shadow InterestEvent retargets interestee to host element");
</script>
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