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<!doctype html>
<link rel="help" href="https://w3c.github.io/pointerevents/#suppressing-a-pointer-event-stream">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="../resources/test-helper.js"></script>
<head>
<title>The UA correctly suppresses the pointer event stream after a drag starts</title>
<style type="text/css">
div {
width: 105px;
min-height: 105px;
}
</style>
</head>
<body>
<p><img src="../resources/circle.png" alt="PNG circle"/></p>
<div></div>
<script>
promise_test(async (t) => {
await new Promise(loaded => window.addEventListener("load", loaded));
const img = document.querySelector('img');
let pointerCancelCalled = false;
let pointerOutCalled = false;
let pointerLeftCalled = false;
img.addEventListener('pointercancel', _ => { pointerCancelCalled = true; });
img.addEventListener('pointerout', _ => { pointerOutCalled = true; });
img.addEventListener('pointerleave', _ => { pointerLeftCalled = true; });
const dragLeavePromise = new Promise(resolve => {
img.addEventListener('dragleave', t.step_func((event) => {
assert_true(pointerCancelCalled, 'pointercancel should have been called after dragstart:');
assert_true(pointerOutCalled, 'pointerout should have been called after dragstart:');
assert_true(pointerLeftCalled, 'pointerleave should have been called after dragstart:');
resolve();
}));
});
// First move the pointer enough that a drag is initiated but the pointer remains
// over the image. Then move the pointer to the div to trigger the dragleave.
await new test_driver.Actions()
.pointerMove(-20, -20, { origin: img })
.pointerDown()
.pointerMove(20, 20, { origin: img })
.pointerMove(0, 0, { origin: document.querySelector('div') })
.send();
await dragLeavePromise;
},
"verify that the pointer events stream is correctly suppressed when a drag starts");
</script>
</body>
</html>
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