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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
| commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
| tree | f435a8308119effd964b339f76abb83a57c29483 /testing/web-platform/tests/css/css-position/sticky/position-sticky-left.html | |
| parent | Initial commit. (diff) | |
| download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip | |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/css/css-position/sticky/position-sticky-left.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-position/sticky/position-sticky-left.html | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-position/sticky/position-sticky-left.html b/testing/web-platform/tests/css/css-position/sticky/position-sticky-left.html new file mode 100644 index 0000000000..1fc2e8f88d --- /dev/null +++ b/testing/web-platform/tests/css/css-position/sticky/position-sticky-left.html @@ -0,0 +1,43 @@ +<!DOCTYPE html> +<title>position:sticky elements should respect the left 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 left 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('left', 50); + elements.scroller.scrollLeft = 100; + const nonStickyLeftX = elements.container.offsetLeft + + elements.filler.clientWidth; + assert_equals(elements.sticky.offsetLeft, nonStickyLeftX); +}, 'before reaching the sticking point the sticky box should not be offset'); + +test(() => { + const elements = setupStickyTest('left', 50); + elements.scroller.scrollLeft = 200; + + // This math actually cancels to sticky.offsetLeft == (scroller.scrollLeft + 50), + // but for clarity the calculations are left explicit. + const nonStickyLeftX = elements.container.offsetLeft + + elements.filler.clientWidth; + const targetLeftX = elements.scroller.scrollLeft + 50; + const stickyOffset = targetLeftX - nonStickyLeftX; + + assert_equals(elements.sticky.offsetLeft, nonStickyLeftX + stickyOffset); +}, 'after reaching the sticking point the sticky box should be offset'); + +test(() => { + const elements = setupStickyTest('left', 50); + elements.scroller.scrollLeft = 300; + const maxOffsetInContainer = elements.container.offsetLeft + + elements.container.clientWidth - elements.sticky.clientWidth; + assert_equals(elements.sticky.offsetLeft, maxOffsetInContainer); +}, 'the sticky box should not be pushed outside its containing block'); +</script> |