| Index: third_party/WebKit/LayoutTests/intersection-observer/unclipped-root.html
|
| diff --git a/third_party/WebKit/LayoutTests/intersection-observer/unclipped-root.html b/third_party/WebKit/LayoutTests/intersection-observer/unclipped-root.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..2bb0c81f770ce185dc3840dd1e094648baa08ffa
|
| --- /dev/null
|
| +++ b/third_party/WebKit/LayoutTests/intersection-observer/unclipped-root.html
|
| @@ -0,0 +1,67 @@
|
| +<!DOCTYPE html>
|
| +<script src="../resources/js-test.js"></script>
|
| +<script src="helper-functions.js"></script>
|
| +<style>
|
| +#root {
|
| + overflow: visible;
|
| + height: 200px;
|
| + width: 200px;
|
| + border: 7px solid black;
|
| +}
|
| +#target {
|
| + width: 100px;
|
| + height: 100px;
|
| + background-color: green;
|
| +}
|
| +</style>
|
| +<div id="root">
|
| + <div id="target" style="transform: translateY(300px)"></div>
|
| +</div>
|
| +
|
| +<script>
|
| +description("Test that border bounding box is used to calculate intersection with a non-scrolling root.");
|
| +var target = document.getElementById("target");
|
| +var root = document.getElementById("root");
|
| +var entries = [];
|
| +var observer = new IntersectionObserver(
|
| + changes => { entries.push(...changes) },
|
| + { root: document.getElementById("root") }
|
| +);
|
| +
|
| +onload = function() {
|
| + observer.observe(target);
|
| + entries.push(...observer.takeRecords());
|
| + shouldBeEqualToNumber("entries.length", 0);
|
| + // See README for explanation of double RAF.
|
| + requestAnimationFrame(() => { requestAnimationFrame(step0) });
|
| +}
|
| +
|
| +function step0() {
|
| + entries.push(...observer.takeRecords());
|
| + shouldBeEqualToNumber("entries.length", 0);
|
| + target.style.transform = "translateY(195px)";
|
| + requestAnimationFrame(step1);
|
| +}
|
| +
|
| +function step1() {
|
| + entries.push(...observer.takeRecords());
|
| + shouldBeEqualToNumber("entries.length", 1);
|
| + if (entries.length > 0) {
|
| + shouldBeEqualToNumber("entries[0].boundingClientRect.left", 15);
|
| + shouldBeEqualToNumber("entries[0].boundingClientRect.right", 115);
|
| + shouldBeEqualToNumber("entries[0].boundingClientRect.top", 210);
|
| + shouldBeEqualToNumber("entries[0].boundingClientRect.bottom", 310);
|
| + shouldBeEqualToNumber("entries[0].intersectionRect.left", 15);
|
| + shouldBeEqualToNumber("entries[0].intersectionRect.right", 115);
|
| + shouldBeEqualToNumber("entries[0].intersectionRect.top", 210);
|
| + shouldBeEqualToNumber("entries[0].intersectionRect.bottom", 222);
|
| + shouldBeEqualToNumber("entries[0].rootBounds.left", 8);
|
| + shouldBeEqualToNumber("entries[0].rootBounds.right", 222);
|
| + shouldBeEqualToNumber("entries[0].rootBounds.top", 8);
|
| + shouldBeEqualToNumber("entries[0].rootBounds.bottom", 222);
|
| + shouldEvaluateToSameObject("entries[0].target", target);
|
| + }
|
| +
|
| + finishJSTest();
|
| +}
|
| +</script>
|
|
|
Chromium Code Reviews
Issue 1814553003:
IntersectionObserver: use border box rect for unclipped root. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src@intersection-observer-idle-callback