blob: fc5b145e1fb43e40fdc30a2ee2e91eff77fb3293 [file] [log] [blame]
<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../resources/intersection-observer-test-utils.js"></script>
<style>
body, html {
margin: 0;
}
pre, #log {
position: absolute;
top: 150px;
}
#target {
width: 100px;
height: 100px;
background-color: green;
float: left;
}
#occluder {
float: left;
margin-left: 10px;
width: 100px;
height: 100px;
background-color: blue;
filter: drop-shadow(-50px 0);
writing-mode: vertical-rl;
}
</style>
<div id="target"></div>
<div id="occluder"></div>
<script>
var delay = 100;
var entries = [];
var target;
var occluder;
runTestCycle(function() {
target = document.getElementById("target");
occluder = document.getElementById("occluder");
assert_true(!!target, "target exists");
assert_true(!!occluder, "occluder exists");
var observer = new IntersectionObserver(function(changes) {
entries = entries.concat(changes)
}, {trackVisibility: true, delay: delay});
observer.observe(target);
entries = entries.concat(observer.takeRecords());
assert_equals(entries.length, 0, "No initial notifications.");
runTestCycle(step0, "First rAF.", delay);
}, "IntersectionObserverV2 in a single document using the implicit root, with an occluding element.", delay);
function step0() {
// Occluding elements with opacity=0 should not affect target visibility.
occluder.style.opacity = "0";
runTestCycle(step2, "occluder.style.opacity = 0", delay);
// First notification should report occlusion due to drop shadow filter.
checkLastEntry(entries, 0, [0, 100, 0, 100, 0, 100, 0, 100, 0, 800, 0, 600, true, false]);
}
function step2() {
checkLastEntry(entries, 1, [0, 100, 0, 100, 0, 100, 0, 100, 0, 800, 0, 600, true, true]);
}
</script>