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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=author href="mailto:masonf@chromium.org">
<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>
<div id="interestee"></div>
<a id="nohref" interesttarget="interestee">Anchor</a>
<a href="/" id="interestanchor" interesttarget="interestee">Anchor</a>
<button id="otherbutton">Other Button</button>
<style>
[interesttarget] {
interest-target-delay: 0s;
}
</style>
<script>
promise_test(async function (t) {
t.add_cleanup(async () => {
await hoverOver(otherbutton);
});
let gotEvent = false;
interestee.addEventListener("interest", () => (gotEvent = true));
await hoverOver(nohref);
assert_false(gotEvent, "InterestEvent should not get fired");
nohref.setAttribute('href','foo');
await hoverOver(nohref);
assert_false(gotEvent, "adding href while the element is already hovered should not fire interest");
await hoverOver(otherbutton);
await hoverOver(nohref);
assert_true(gotEvent, "interest should now be fired");
}, "InterestEvent is not dispatched unless the anchor has an href");
promise_test(async function (t) {
t.add_cleanup(async () => {
await hoverOver(otherbutton);
});
let event = null;
interestee.addEventListener("interest", (e) => (event = e), { once: true });
await hoverOver(interestanchor);
assert_true(!!event, "InterestEvent is fired");
assert_true(event instanceof InterestEvent, "event is InterestEvent");
assert_equals(event.type, "interest", "type");
assert_equals(event.bubbles, false, "bubbles");
assert_equals(event.composed, true, "composed");
assert_equals(event.isTrusted, true, "isTrusted");
assert_equals(event.target, interestee, "target");
assert_equals(event.source, interestanchor, "source");
}, "InterestEvent dispatches on anchor hover");
</script>
<br>
<a href="/" id="parentanchor" interesttarget="childdiv"><span>Anchor</span>
<div id="childdiv">Child div</div>
</a>
<script>
promise_test(async function (t) {
let events = [];
childdiv.addEventListener("interest", (e) => (events.push('interest')));
childdiv.addEventListener("loseinterest", (e) => (events.push('loseinterest')));
const justAnchor = parentanchor.firstChild;
assert_true(justAnchor instanceof HTMLSpanElement);
await hoverOver(justAnchor);
assert_array_equals(events,['interest'],'Hovering anchor should show interest');
await hoverOver(childdiv);
assert_array_equals(events,['interest'],'Hovering the target shouldn\'t fire any new events');
await hoverOver(justAnchor);
assert_array_equals(events,['interest'],'Hovering back on the anchor shouldn\'t fire new events');
await hoverOver(otherbutton);
assert_array_equals(events,['interest','loseinterest'],'De-hovering both should fire loseinterest');
}, "Nested invoker and invokee");
</script>
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