summaryrefslogtreecommitdiffstats
path: root/testing/web-platform/tests/css/css-scroll-snap/snap-to-transformed-target.html
diff options
context:
space:
mode:
Diffstat (limited to 'testing/web-platform/tests/css/css-scroll-snap/snap-to-transformed-target.html')
-rw-r--r--testing/web-platform/tests/css/css-scroll-snap/snap-to-transformed-target.html56
1 files changed, 56 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-scroll-snap/snap-to-transformed-target.html b/testing/web-platform/tests/css/css-scroll-snap/snap-to-transformed-target.html
new file mode 100644
index 0000000000..b8604269b4
--- /dev/null
+++ b/testing/web-platform/tests/css/css-scroll-snap/snap-to-transformed-target.html
@@ -0,0 +1,56 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#scroll-snap-type" />
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+div {
+ position: absolute;
+}
+#scroller {
+ overflow: hidden; /* TODO: Use scrollbar-width: none */
+ scroll-snap-type: x mandatory;
+ width: 500px;
+ height: 500px;
+}
+.space {
+ width: 2000px;
+ height: 2000px;
+}
+#target {
+ height: 200px;
+ width: 200px;
+ left: 50px;
+ background-color: blue;
+}
+</style>
+<div id="scroller">
+ <div class="space"></div>
+ <div id="target"></div>
+</div>
+<script>
+test(() => {
+ target.style.scrollSnapAlign = "start";
+ target.style.transform = "translateX(300px)";
+ scroller.scrollTo(10, 0);
+ assert_equals(scroller.scrollLeft, 350 /* left + translateX(300px) */);
+ assert_equals(scroller.scrollTop, 0);
+}, "Snaps to the transformed snap start position");
+
+test(() => {
+ target.style.scrollSnapAlign = "end";
+ target.style.transform = "translateX(300px)";
+ scroller.scrollTo(10, 0);
+ assert_equals(scroller.scrollLeft,
+ 50 /* left + width + translateX(300px) - scroller.width */);
+ assert_equals(scroller.scrollTop, 0);
+}, "Snaps to the transformed snap end position");
+
+test(() => {
+ target.style.scrollSnapAlign = "start";
+ target.style.transform = "translateX(-100px)";
+ scroller.scrollTo(10, 0);
+ assert_equals(scroller.scrollLeft, 0);
+ assert_equals(scroller.scrollTop, 0);
+}, "Snaps to visible top left position of the transformed box");
+
+</script>