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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-scroll-snap/scroll-on-large-element-not-covering-snapport.tentative.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-scroll-snap/scroll-on-large-element-not-covering-snapport.tentative.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-scroll-snap/scroll-on-large-element-not-covering-snapport.tentative.html | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-scroll-snap/scroll-on-large-element-not-covering-snapport.tentative.html b/testing/web-platform/tests/css/css-scroll-snap/scroll-on-large-element-not-covering-snapport.tentative.html new file mode 100644 index 0000000000..2db00d414a --- /dev/null +++ b/testing/web-platform/tests/css/css-scroll-snap/scroll-on-large-element-not-covering-snapport.tentative.html @@ -0,0 +1,91 @@ +<!DOCTYPE html> +<title> + A test case that scrolling to a point on large element where the snap area + doesn't cover over the snapport +</title> +<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#snap-overflow"/> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<style> +div { + position: absolute; + width: 100%; +} +#scroller { + left: 10px; + height: 200px; + width: 100px; + overflow-y: scroll; + overflow-x: hidden; + scroll-snap-type: y mandatory; +} +.snap { + scroll-snap-align: start; + background-color: green; +} +.target { + background-color: red; + border-radius: 100%; + height: 88px; + top: 536px; +} +</style> +<div id="scroller"> + <div style="height: 2000px;"></div> + <div class="snap" style="top: 0px; height: 40px;">1</div> + <div class="snap" style="top: 40px; height: 40px;">2</div> + <div class="snap" style="top: 80px; height: 1000px;">3</div> + <div class="snap" style="top: 1080px; height: 40px;">4</div> + <div class="snap" style="top: 1120px; height: 40px;">5</div> + <div class="target"></div> +</div> +<script> +test(() => { + const scroller = document.getElementById("scroller"); + + scroller.scrollBy(0, 10); + // Snap to the first snap point. + assert_equals(scroller.scrollLeft, 0); + assert_equals(scroller.scrollTop, 40); + + scroller.scrollBy(0, 10); + // Snap to the second snap point. + assert_equals(scroller.scrollLeft, 0); + assert_equals(scroller.scrollTop, 80); + + scroller.scrollBy(0, 100); + // Snap to the given scrolling position since the third snap target element + // is larger than the snapport. + assert_equals(scroller.scrollLeft, 0); + assert_equals(scroller.scrollTop, 180); + + scroller.scrollBy(0, 100); + // Again, snap to the given scrolling position. + assert_equals(scroller.scrollLeft, 0); + assert_equals(scroller.scrollTop, 280); + + // Scroll to a point where the third target element is still covering over the + // snapport. + scroller.scrollBy(0, 600); + assert_equals(scroller.scrollLeft, 0); + // Again, snap to the given scrolling position. + assert_equals(scroller.scrollTop, 880); + + // Scroll to a point where the third target element is no longer convering + // over the snapport, rather the forth snap point is in the snapport. + scroller.scrollBy(0, 10); + // Now, snap to the forth snap point. + assert_equals(scroller.scrollLeft, 0); + assert_equals(scroller.scrollTop, 1080); + + // Scroll back a bit. + scroller.scrollBy(0, -10); + // Now, snap back to the third snap point because at the moment when scrolling + // up by 10px, the large third snap target element isn't covering over the + // snapport, i.e. only bottom 10px of the large element is in the snapport. + // See https://github.com/w3c/csswg-drafts/issues/7262 + assert_equals(scroller.scrollLeft, 0); + assert_equals(scroller.scrollTop, 80); +}, 'There\'s no valid snap positions on large element if it doesn\'t cover ' + + 'the snapport'); +</script> |