Stefan Zager
2e6efd4b85
Automatic update from web-platform-tests Do not synchronously generate IntersectionObserver notifications Prior to this CL, we would synchronously generate a not-intersecting notification when a target element was removed from the DOM. That doesn't match the spec -- there is no affordance for generating notifications outside of the "update the rendering" steps. This CL removes all the synchronous forced computation of intersections. It makes IntersectionObserverController continue tracking disconnected targets until they have a chance to issue a "not-intersecting" notification during a rendering update. Bug: chromium:40914013 Change-Id: I332dc4e95dc9cffbe7d05ec63eb3cd6122c431a1 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7038511 Reviewed-by: Philip Rogers <pdr@chromium.org> Commit-Queue: Stefan Zager <szager@chromium.org> Cr-Commit-Position: refs/heads/main@{#1531750} -- wpt-commits: ca587879e05348d19e15627d9d5b6a2be0b5caf2 wpt-pr: 55459
49 lines
1.3 KiB
HTML
49 lines
1.3 KiB
HTML
<!DOCTYPE html>
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<meta name="viewport" content="width=device-width,initial-scale=1">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="./resources/intersection-observer-test-utils.js"></script>
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<style>
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pre, #log {
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position: absolute;
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top: 0;
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left: 200px;
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}
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#target {
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width: 100px;
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height: 100px;
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background-color: green;
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}
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</style>
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<script>
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var vw = document.documentElement.clientWidth;
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var vh = document.documentElement.clientHeight;
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var entries = [];
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var target;
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runTestCycle(function() {
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var detached_document = document.implementation.createHTMLDocument("test");
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target = detached_document.createElement("div");
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target.id = "target";
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var observer = new IntersectionObserver(function(changes) {
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entries = entries.concat(changes)
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});
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observer.observe(target);
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runTestCycle(step0, "First rAF.");
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}, "IntersectionObserver in a single document using the implicit root.");
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function step0() {
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document.adoptNode(target);
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document.body.appendChild(target);
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assert_equals(entries.length, 0, "No initial notification while in detached document.");
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runTestCycle(step1, "Adopt target.");
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}
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function step1() {
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checkLastEntry(entries, 0, [8, 108, 8, 108, 8, 108, 8, 108, 0, vw, 0, vh, true]);
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}
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</script>
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