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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
| commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
| tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/css/css-contain/content-visibility/content-visibility-081.html | |
| parent | Initial commit. (diff) | |
| download | firefox-upstream.tar.xz firefox-upstream.zip | |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/css/css-contain/content-visibility/content-visibility-081.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-contain/content-visibility/content-visibility-081.html | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-contain/content-visibility/content-visibility-081.html b/testing/web-platform/tests/css/css-contain/content-visibility/content-visibility-081.html new file mode 100644 index 0000000000..b5f10cb6c8 --- /dev/null +++ b/testing/web-platform/tests/css/css-contain/content-visibility/content-visibility-081.html @@ -0,0 +1,55 @@ +<!doctype HTML> +<html id=html> +<meta charset="utf8"> +<title>Content Visibility: scroll position restoration</title> +<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org"> +<link rel="help" href="https://drafts.csswg.org/css-contain/#content-visibility"> +<meta name="assert" content="if an scroller is hidden via content-visibility and then shown again, its scroll offset should be restored"> +<meta name="viewport" content="width=device-width"> + +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="support/helper.js"></script> + +<style> +.scroller { + width: 100px; + height: 500px; + overflow-y: scroll; +} +.spacer { height: 3000px; } +.hidden { content-visibility: hidden; } +</style> + +<div id=target class=scroller> + <div class=spacer></div> +</div> +</style> + +<script> +function removeHiddenAndScheduleTest(t) { + target.classList.remove("hidden"); + requestAnimationFrame(() => { + requestAnimationFrame(() => { + testScrollTop(t); + }); + }); +} + +function testScrollTop(t) { + t.step(() => assert_equals(target.scrollTop, 2000)); + t.done(); +} + +async_test((t) => { + target.scrollTop = 2000; + target.classList.add("hidden"); + + requestAnimationFrame(() => { + requestAnimationFrame(() => { + removeHiddenAndScheduleTest(t); + }); + }); +}, "Scroll offset is restored when content-visibility hidden is removed"); +</script> +</html> |