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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
| commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
| tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /testing/web-platform/tests/css/css-scroll-anchoring/position-change-heuristic-in-nested-scroll-box.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/css/css-scroll-anchoring/position-change-heuristic-in-nested-scroll-box.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-scroll-anchoring/position-change-heuristic-in-nested-scroll-box.html | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-scroll-anchoring/position-change-heuristic-in-nested-scroll-box.html b/testing/web-platform/tests/css/css-scroll-anchoring/position-change-heuristic-in-nested-scroll-box.html new file mode 100644 index 0000000000..58c88001d5 --- /dev/null +++ b/testing/web-platform/tests/css/css-scroll-anchoring/position-change-heuristic-in-nested-scroll-box.html @@ -0,0 +1,85 @@ +<!DOCTYPE html> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<link rel="help" href="https://drafts.csswg.org/css-scroll-anchoring/#suppression-triggers"> +<style> +#space { + height: 4000px; + overflow: hidden; +} +#header { + background-color: #F5B335; + height: 50px; + width: 100%; +} +#content { + background-color: #D3D3D3; + height: 400px; +} +.scroller { + overflow: scroll; + position: relative; + width: 600px; + height: 600px; +} +body { + overflow: hidden; +} +</style> +<div id="maybeScroller"> + <div id="space"> + <div id="header"></div> + <div id="before"></div> + <div id="content"></div> + </div> +</div> +<script> + +// Tests that scroll anchoring is suppressed when an element in the scroller +// changes its in-flow state. + +var scroller; + +function runCase(oldPos, newPos, expectSuppression, skipInverse) { + var header = document.querySelector("#header"); + var before = document.querySelector("#before"); + + header.style.position = oldPos; + before.style.height = "0"; + scroller.scrollTop = 200; + + header.style.position = newPos; + before.style.height = "25px"; + + var expectedTop = expectSuppression ? 200 : 225; + assert_equals(scroller.scrollTop, expectedTop); + + if (!skipInverse) + runCase(newPos, oldPos, expectSuppression, true); +} + +test(() => { + scroller = document.scrollingElement; + document.querySelector("#maybeScroller").className = ""; + + runCase("static", "fixed", true); + runCase("static", "absolute", true); + runCase("static", "relative", false); + runCase("fixed", "absolute", false); + runCase("fixed", "relative", true); + runCase("absolute", "relative", true); +}, "Position changes in document scroller."); + +test(() => { + scroller = document.querySelector("#maybeScroller"); + scroller.className = "scroller"; + + runCase("static", "fixed", true); + runCase("static", "absolute", true); + runCase("static", "relative", false); + runCase("fixed", "absolute", false); + runCase("fixed", "relative", true); + runCase("absolute", "relative", true); +}, "Position changes in scrollable <div>."); + +</script> |