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<!DOCTYPE html>
<html>
<head>
<title>CSSOM View - Simultaneous scrollIntoViews</title>
<link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-element-scrollintoview">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/dom/events/scrolling/scroll_support.js"></script>
<script src="/css/css-scroll-snap/support/common.js"></script>
<script src="resources/simultaneousScrollIntoViews.js"></script>
</head>
<body>
<style>
.scroller {
overflow-y: scroll;
background-color: teal;
border: solid 1px black;
position: relative;
resize: both;
display: inline-block;
}
.scroller.outer {
height: 400px;
width: 400px;
}
.scroller.inner {
height: 200px;
width: 200px;
position: absolute;
top: 150%;
}
.space {
height: 200vh;
width: 200vw;
}
.box {
height: 50px;
width: 50px;
background-color: purple;
}
.target {
position: absolute;
top: 150%;
}
</style>
<div id="outerscroller1" class="outer scroller">
<div class="space"></div>
<div id="innerscroller1" class="inner scroller">
<div class="space"></div>
<div class="box target" id="target1"></div>
</div>
</div>
<div id="outerscroller2" class="outer scroller">
<div class="space"></div>
<div id="innerscroller2" class="inner scroller">
<div class="space"></div>
<div class="box target" id="target2"></div>
</div>
</div>
<script>
const outerscroller1 = document.getElementById("outerscroller1");
const outerscroller2 = document.getElementById("outerscroller2");
const innerscroller1 = document.getElementById("innerscroller1");
const innerscroller2 = document.getElementById("innerscroller2");
const target1 = document.getElementById("target1");
const target2 = document.getElementById("target2");
const scrollers = [ outerscroller1,
outerscroller2,
innerscroller1,
innerscroller2 ];
// Expect the outer scrollers to scroll to the inner scrollers
// and the inner scrollers to scroll to their respective targets.
const target_offsets = [ innerscroller1.offsetTop,
innerscroller2.offsetTop,
target1.offsetTop,
target2.offsetTop ];
promise_test(async (t) => {
await simultaneousScrollIntoViewsTest(t,
["smooth", "smooth"], [target1, target2], scrollers, target_offsets);
}, "Simultaneous smooth scrollIntoViews run to completion");
promise_test(async (t) => {
await simultaneousScrollIntoViewsTest(t,
["smooth", "instant"], [target1, target2], scrollers, target_offsets);
}, "Simultaneous smooth,instant scrollIntoViews run to completion");
promise_test(async (t) => {
await simultaneousScrollIntoViewsTest(t,
["instant", "smooth"], [target1, target2], scrollers, target_offsets);
}, "Simultaneous instant,smooth scrollIntoViews run to completion");
promise_test(async (t) => {
await simultaneousScrollIntoViewsTest(t,
["instant", "instant"], [target1, target2], scrollers, target_offsets);
}, "Simultaneous instant scrollIntoViews run to completion");
</script>
</body>
</html>
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