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<!DOCTYPE html>
<meta charset="utf-8" />
<meta name="timeout" content="long">
<link rel="author" href="mailto:masonf@chromium.org">
<link rel="help" href="https://open-ui.org/components/interest-invokers.explainer/" />
<link rel="help" href="https://github.com/whatwg/html/pull/11006" />
<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>
<meta name=variant content=?method=hover>
<meta name=variant content=?method=focus>
<button data-testcase="<button>" interestfor=target>Button</button>
<a data-testcase="<a>" href=foo interestfor=target>Link</a>
<img src="/images/blue.png" usemap="#map" id=areatarget>
<map id=map>
<area data-testcase="<area>" data-hover="areatarget" interestfor=target href="/" shape=default>
</map>
<svg viewBox="0 0 100 100" style="width: 100px" xmlns="http://www.w3.org/2000/svg">
<a data-testcase="SVG <a>" href=foo interestfor=target>
<text x=50 y=90>SVG A</text>
</a>
</svg>
<div id=target>Target</div>
<button id=otherbutton>Other button</button>
<style>
[interestfor] {
interest-delay: 0s;
}
</style>
<script>
const allInterestForElements = document.querySelectorAll('[data-testcase]');
assert_true(allInterestForElements.length > 0);
function verifyInterest(onlyElements,description) {
if (!(onlyElements instanceof Array)) {
onlyElements = [onlyElements];
}
[...allInterestForElements, another].forEach(el => {
const expectInterest = onlyElements.includes(el);
assert_equals(el.matches(':interest-source'),expectInterest,`${description}, element ${el.dataset.testcase} should ${expectInterest ? "" : "NOT "}have interest`);
})
}
function reinsert(element) {
const parent = element.parentElement;
const nextSibling = element.nextSibling;
element.remove();
parent.insertBefore(element,nextSibling);
}
function preventEvent(shouldCancel,el,type) {
if (shouldCancel) {
assert_not_equals(type,'focusin','focusin can\'t be cancelled');
assert_not_equals(type,'focusout','focusout can\'t be cancelled');
el.addEventListener(type, (e) => e.preventDefault(), {once:true});
}
}
const urlParams = new URLSearchParams(window.location.search);
method = urlParams.get('method');
['none','cancel-trigger','cancel-lose'].forEach(cancelEvent => {
allInterestForElements.forEach(el => {
const description = `${el.dataset.testcase}, ${cancelEvent}, ${method}`;
promise_test(async function (t) {
t.add_cleanup(() => {
reinsert(el);
reinsert(target);
});
assert_false(el.matches(':interest-source'),'setup');
assert_false(target.matches(':interest-target'),'setup');
const signal = t.get_signal();
let interestCount = 0;
let loseInterestCount = 0;
target.addEventListener('interest', (e) => (++interestCount), {signal});
target.addEventListener('loseinterest', () => (++loseInterestCount), {signal});
const cancelTrigger = cancelEvent === 'cancel-trigger';
const cancelLose = cancelEvent === 'cancel-lose';
assert_true(cancelTrigger || cancelLose || cancelEvent === 'none');
switch (method) {
case 'hover':
preventEvent(cancelTrigger,el,'mouseover');
hovertarget = el;
if (el.dataset.hover) {
hovertarget = document.getElementById(el.dataset.hover);
}
await hoverOver(hovertarget)
break;
case 'focus':
if (cancelTrigger) {
return; // focusin cannot be cancelled, nothing to test
}
await focusOn(el);
break;
default:
assert_unreached();
}
assert_equals(loseInterestCount, 0, 'Lose interest should not be fired yet');
if (cancelTrigger) {
assert_equals(interestCount, 0, 'Because the trigger event was cancelled, interest should not be fired');
assert_false(el.matches(':interest-source'),':interest-source should not match');
} else {
assert_equals(interestCount, 1, 'Interest should be fired');
assert_true(el.matches(':interest-source'),':interest-source should match');
}
interestCount = 0;
switch (method) {
case 'hover':
preventEvent(cancelLose,el,'mouseout');
await hoverOver(otherbutton);
break;
case 'focus':
if (cancelLose) {
return; // focusout cannot be cancelled, nothing to test
}
await focusOn(otherbutton);
break;
default:
assert_unreached();
}
assert_equals(interestCount, 0, 'No new interest event should be fired');
if (cancelTrigger || cancelLose) {
assert_equals(loseInterestCount, 0, 'No lose interest event should be fired');
} else {
assert_equals(loseInterestCount, 1, 'Lose interest event should be fired');
}
if (cancelLose) {
assert_true(el.matches(':interest-source'),':interest-source should still match because we canceled the triggering event');
} else {
assert_false(el.matches(':interest-source'),':interest-source should not match');
}
},`Basic behavior, ${description}`);
});
});
</script>
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