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Commit b7397ad0 authored by Rune Lillesveen's avatar Rune Lillesveen Committed by Commit Bot
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Web platform tests for smooth scroll-behavior. 

An interesting note is that the spec says scroll-behavior on BODY should
not propagate to the viewport. Firefox currently does that.

Bug: 788347
Change-Id: Id82deeac64177bce05268bb5fdb2df144f808800
Reviewed-on: https://chromium-review.googlesource.com/793045Reviewed-by: default avatarDave Tapuska <dtapuska@chromium.org>
Commit-Queue: Rune Lillesveen <futhark@chromium.org>
Cr-Commit-Position: refs/heads/master@{#519744}
parent 845cca13
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third_party/WebKit/LayoutTests/external/wpt/css/cssom-view/scroll-behavior-smooth.html 0 → 100644
View file @ b7397ad0
<!DOCTYPE html>
<title>cssom-view - scroll-behavior: smooth</title>
<link rel="author" title="Rune Lillesveen" href="mailto:futhark@chromium.org">
<link rel="help" href="https://drafts.csswg.org/cssom-view/#smooth-scrolling">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
.filler { height: 10000px }
.smooth {
scroll-behavior: smooth;
}
#scrollable {
overflow: scroll;
width: 100px;
height: 100px;
}
</style>
<div id="testContainer">
<div id="scrollable">
<div class="filler"></div>
</div>
<div class="filler"></div>
</div>
<script>
test(() => {
scrollable.scrollTo(0, 5000);
assert_equals(scrollable.scrollTop, 5000, "Initially scrolls instantly");
scrollable.scrollTo(0, 0);
scrollable.className = "smooth";
scrollable.scrollTo(0, 5000);
assert_less_than(scrollable.scrollTop, 5000, "scroll-behavior:smooth should not scroll instantly");
scrollable.className = "";
scrollable.scrollTo(0, 0);
}, "scroll-behavior: smooth on DIV element");
test(() => {
window.scrollTo(0, 5000);
assert_equals(window.scrollY, 5000, "Initially scrolls instantly");
window.scrollTo(0, 0);
document.documentElement.className = "smooth";
assert_less_than(window.scrollY, 5000, "scroll-behavior:smooth should not scroll instantly");
document.documentElement.className = "";
window.scrollTo(0, 0);
}, "HTML element scroll-behavior should propagate to viewport");
test(() => {
window.scrollTo(0, 5000);
assert_equals(window.scrollY, 5000, "Initially scrolls instantly");
window.scrollTo(0, 0);
document.body.className = "smooth";
window.scrollTo(0, 5000);
assert_equals(window.scrollY, 5000, "scroll-behavior:smooth on BODY should scroll viewport instantly");
document.body.className = "";
window.scrollTo(0, 0);
}, "BODY element scroll-behavior should not propagate to viewport");
testContainer.style.display = "none";
</script>
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