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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-position/sticky/position-sticky-bottom.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-position/sticky/position-sticky-bottom.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-position/sticky/position-sticky-bottom.html | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-position/sticky/position-sticky-bottom.html b/testing/web-platform/tests/css/css-position/sticky/position-sticky-bottom.html new file mode 100644 index 0000000000..9cfae6d3ba --- /dev/null +++ b/testing/web-platform/tests/css/css-position/sticky/position-sticky-bottom.html @@ -0,0 +1,41 @@ +<!DOCTYPE html> +<title>position:sticky elements should respect the bottom constraint</title> +<link rel="help" href="https://www.w3.org/TR/css-position-3/#sticky-pos" /> +<meta name="assert" content="This test checks that position:sticky elements obey their bottom anchor after scrolling" /> + +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> + +<script src="../resources/sticky-util.js"></script> + +<body></body> + +<script> +test(() => { + const elements = setupStickyTest('bottom', 25); + elements.scroller.scrollTop = 300; + const nonStickyTopY = elements.container.offsetTop + + elements.filler.clientHeight; + assert_equals(elements.sticky.offsetTop, nonStickyTopY); +}, 'before reaching the sticking point the sticky box should not be offset'); + +test(() => { + const elements = setupStickyTest('bottom', 25); + elements.scroller.scrollTop = 100; + + const nonStickyTopY = elements.container.offsetTop + + elements.filler.clientHeight; + const nonStickyBottomY = nonStickyTopY + elements.sticky.clientHeight; + const targetBottomY = elements.scroller.clientHeight + + elements.scroller.scrollTop - 25; + const stickyOffset = nonStickyBottomY - targetBottomY; + + assert_equals(elements.sticky.offsetTop, nonStickyTopY - stickyOffset); +}, 'after reaching the sticking point the sticky box should be offset'); + +test(() => { + const elements = setupStickyTest('bottom', 25); + elements.scroller.scrollTop = 0; + assert_equals(elements.sticky.offsetTop, elements.container.offsetTop); +}, 'the sticky box should not be pushed outside its containing block'); +</script> |