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<!doctype html>
<meta charset=utf-8>
<title>Resizer should account for transforms to decide resize direction</title>
<link rel=author href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez">
<link rel=author href="https://mozilla.org" title="Mozilla">
<link rel=help href="https://bugzilla.mozilla.org/show_bug.cgi?id=1775797">
<link rel="help" href="https://www.w3.org/TR/css-ui-4/#resize">
<style>
#resizeme {
position: absolute;
top: 200px;
left: 200px;
width: 100px;
height: 100px;
overflow: hidden;
resize: both;
background-color: green;
transform-origin: 0 0;
transform: rotate(90deg);
}
</style>
<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>
<div id="resizeme"></div>
<script>
promise_test(async function test() {
let element = document.getElementById("resizeme");
let rect = element.getBoundingClientRect();
// Due to the rotation, the resizer should be at the bottom left.
await new test_driver.Actions()
.pointerMove(rect.left + 1, rect.bottom - 1)
.pointerDown()
.pointerMove(rect.left + 1, rect.bottom + 50)
.pointerUp()
.send();
// We should've made the element wider due to the rotation.
assert_greater_than(parseInt(getComputedStyle(element).width, 10), 100, "Element should be wider");
assert_equals(parseInt(getComputedStyle(element).height, 10), 100, "Element should have the same height");
});
</script>
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