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<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Ensure irregular areas on top of OOPIFs hit-test properly</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/paint_listener.js"></script>
<script src="helper_fission_utils.js"></script>
<script src="apz_test_utils.js"></script>
<script src="apz_test_native_event_utils.js"></script>
<script>
fission_subtest_init();
FissionTestHelper.startTestPromise
.then(waitUntilApzStable)
.then(loadOOPIFrame("testframe", "helper_fission_empty.html"))
.then(waitUntilApzStable)
.then(test)
.then(FissionTestHelper.subtestDone, FissionTestHelper.subtestFailed);
let make_oopif_scrollable = function() {
// ensure the oopif is scrollable, and wait for the paint so that the
// compositor also knows it's scrollable.
document.body.style.height = "200vh";
promiseApzFlushedRepaints().then(() => {
let utils = SpecialPowers.getDOMWindowUtils(window);
let result = {
layersId: utils.getLayersId(),
viewId: utils.getViewId(document.scrollingElement)
};
dump(`OOPIF computed IDs ${JSON.stringify(result)}\n`);
FissionTestHelper.fireEventInEmbedder("OOPIF:Scrollable", result);
});
return true;
};
async function test() {
let iframe = document.getElementById("testframe");
let oopifScrollerIds = promiseOneEvent(window, "OOPIF:Scrollable", null);
ok(await FissionTestHelper.sendToOopif(iframe, `(${make_oopif_scrollable})()`),
"Ran code to make OOPIF scrollable");
oopifScrollerIds = (await oopifScrollerIds).data;
let utils = SpecialPowers.getDOMWindowUtils(window);
// The triangle_overlay div overlays a part of the iframe. We do 3 hit-tests:
// - one that hits the opaque part of the overlay
// - one that hits the clipped-away part of the overlay div but is still
// inside the bounding box
// - one that is not on the overlay at all, but on the part of the iframe not
// covered by the overlay.
// For the latter two, we expect the hit-test to hit the OOPIF.
checkHitResult(await fissionHitTest({x: 20, y: 100}, iframe),
APZHitResultFlags.VISIBLE | APZHitResultFlags.IRREGULAR_AREA,
utils.getViewId(document.scrollingElement),
utils.getLayersId(),
"opaque part of overlay should hit parent doc hosting the OOPIF");
checkHitResult(await fissionHitTest({x: 180, y: 100}, iframe),
APZHitResultFlags.VISIBLE,
oopifScrollerIds.viewId,
oopifScrollerIds.layersId,
"clipped-away part of overlay should hit OOPIF");
checkHitResult(await fissionHitTest({x: 250, y: 100}, iframe),
APZHitResultFlags.VISIBLE,
oopifScrollerIds.viewId,
oopifScrollerIds.layersId,
"part of OOPIF outside the overlay bounding rect should hit the OOPIF");
}
</script>
</head>
<body>
<style>
html, body {
margin: 0;
}
iframe {
position: absolute;
width: 300px;
height: 200px;
}
#triangle_overlay {
position: absolute;
top: 0;
left: 0;
width: 200px;
height: 200px;
background-color: green;
clip-path: polygon(0% 0%, 100% 100%, 0% 100%);
}
</style>
<iframe id="testframe"></iframe>
<div id="triangle_overlay"></div>
</body>
</html>
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