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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-scroll-snap/no-snap-position.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-scroll-snap/no-snap-position.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-scroll-snap/no-snap-position.html | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-scroll-snap/no-snap-position.html b/testing/web-platform/tests/css/css-scroll-snap/no-snap-position.html new file mode 100644 index 0000000000..8f1f44af59 --- /dev/null +++ b/testing/web-platform/tests/css/css-scroll-snap/no-snap-position.html @@ -0,0 +1,89 @@ +<!DOCTYPE html> +<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#valdef-scroll-snap-type-mandatory" /> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="./support/common.js"></script> +<style> +div { + position: absolute; + margin: 0px; +} +#scroller { + height: 500px; + width: 500px; + overflow: hidden; +} +.child { + width: 300px; + height: 300px; + background-color: blue; +} +</style> + +<div id="scroller"> + <div class="child" style="top: 0px; left: 0px;"></div> + <div class="child" style="top: 1000px; left: 1000px;"></div> + <div style="width: 2000px; height: 2000px;"></div> +</div> + +<script> +test(() => { + scroller.style.scrollSnapType = "both mandatory"; + + // Scroll to where the first child is in view. + scroller.scrollTo(100, 100); + assert_equals(scroller.scrollLeft, 100); + assert_equals(scroller.scrollTop, 100); + + // Scroll to where the second child is in view. + scroller.scrollTo(900, 900); + assert_equals(scroller.scrollLeft, 900); + assert_equals(scroller.scrollTop, 900); +}, "No snapping occurs if there is no valid snap position"); + +test(() => { + scroller.style.scrollSnapType = "x mandatory"; + + for (const target of document.querySelectorAll(".child")) { + target.scrollSnapAlign = "start none"; + } + + // Scroll to where the first child is in view. + scroller.scrollTo(100, 100); + assert_equals(scroller.scrollLeft, 100); + assert_equals(scroller.scrollTop, 100); + + // Scroll to where the second child is in view. + scroller.scrollTo(900, 900); + assert_equals(scroller.scrollLeft, 900); + assert_equals(scroller.scrollTop, 900); +}, "No snapping occurs if there is no valid snap position matches scroll-snap-type"); + +promise_test(async t => { + // Start with valid snap positions. + scroller.style.scrollSnapType = "y mandatory"; + document.querySelectorAll('.child').forEach(el => { + el.style.scrollSnapAlign = 'start'; + t.add_cleanup(() => { + el.style.scrollSnapAlign = ''; + }); + }); + scroller.scrollTo(100, 100); + await waitForNextFrame(); + const scrollPosition = scroller.scrollTop; + // Elements no longer snap along the y-axis. + document.querySelectorAll('.child').forEach(el => { + el.style.scrollSnapAlign = 'none start'; + // Bump the position to verify that we don't stay pinned to the same element + // after layout update. + el.style.top = `${parseInt(el.style.top) + 100}px`; + }); + await waitForNextFrame(); + assert_equals(scroller.scrollTop, scrollPosition); + scroller.scrollTo(900, 900); + assert_equals(scroller.scrollLeft, 900); + assert_equals(scroller.scrollTop, 900); + +}, "No snapping occurs when last remaining valid snap point is no longer " + + "valid."); +</script> |