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<!DOCTYPE html>
<html>
<meta charset=utf-8 />
<title>Event Timing: pointerdown/up gap.</title>
<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/event-timing-test-utils.js></script>
<div id='target'>Click me</div>
<script>
promise_test(async t => {
const pointerDowns = []
const pointerUps = []
blockNextEventListener(window, 'pointerdown', 30)
blockNextEventListener(window, 'pointerup', 30)
// A keydown is used as an interleaving event, to make sure the pointerdown's
// timing entry had it's duration set before triggering the pointerup. Using
// only `await afterNextPaint()` after the first event is not enough to
// guarantee this in all browsers. See discussion in
// https://github.com/web-platform-tests/wpt/pull/55577#discussion_r2466579023
blockNextEventListener(window, 'keydown', 30)
const {promise: interleavingEventTimingEntryObserved, resolve: resolveInterleaving } = Promise.withResolvers();
new PerformanceObserver( (entries) => {
entries.getEntries().forEach( (e) => {
if (e.name == 'pointerdown')
pointerDowns.push(e)
if (e.name =='pointerup')
pointerUps.push(e)
if (e.name == 'keydown')
resolveInterleaving()
})
}).observe({type: 'event', durationThreshold: 16})
const pointerDownHandled = new Promise( resolve => window.addEventListener('pointerdown', e => resolve(), true) )
const pointerUpHandled = new Promise( resolve => window.addEventListener('pointerup', e => resolve(), true) )
await new test_driver.Actions()
.pointerMove(0, 0)
.pointerDown()
.send()
await pointerDownHandled
await afterNextPaint()
await new test_driver.Actions()
.keyDown('k')
.keyUp('k')
.send()
await interleavingEventTimingEntryObserved
const waitStart = performance.now()
await t.step_wait(() => (performance.now() - waitStart > 50))
await new test_driver.Actions()
.pointerUp()
.send()
await pointerUpHandled
await t.step_wait(() => (pointerDowns.length != 0 && pointerUps.length != 0), 'Wait for the event timing entries to be processed.')
assert_equals(pointerDowns.length, 1)
assert_equals(pointerUps.length, 1)
assert_greater_than(pointerUps[0].startTime, pointerDowns[0].startTime + pointerDowns[0].duration)
}, "pointerdown duration shouldn't wait for pointerup.")
</script>
</html>
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