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<!DOCTYPE HTML>
<style>
body {
height: 30000px;
width: 30000px;
}
.spacer {
height: 1000px;
width: 1000px;
}
#scroller {
height: 100px;
width: 100px;
overflow: scroll;
}
</style>
<div id=scroller>
<div class=spacer></div>
</div>
<script src="../../resources/js-test.js"></script>
<script>
description("Verifies that nan scroll position works correctly.");
function scrollToNonFinite(x, y)
{
window.scrollTo(100, 100);
window.scrollTo(x, y);
shouldBe('window.scrollY', "0");
shouldBe('window.scrollX', "0");
window.scrollTo(100, 100);
window.scrollTo({top: y, left: x});
shouldBe('window.scrollY', "0");
shouldBe('window.scrollX', "0");
}
function scrollByNonFinite(x, y)
{
window.scrollTo(100, 100);
window.scrollBy(x, y);
shouldBe('window.scrollY', "100");
shouldBe('window.scrollX', "100");
window.scrollTo(100, 100);
window.scrollBy({top: y, left: x});
shouldBe('window.scrollY', "100");
shouldBe('window.scrollX', "100");
}
function scrollTopNonFinite(y)
{
scroller.scrollTop = 1;
shouldBe("scroller.scrollTop", "1");
scroller.scrollTop = y;
shouldBe("scroller.scrollTop", "0");
}
function scrollLeftNonFinite(x)
{
scroller.scrollLeft = 1;
shouldBe("scroller.scrollLeft", "1");
scroller.scrollLeft = x;
shouldBe("scroller.scrollLeft", "0");
}
function scroll()
{
window.scrollTo(1, 1);
shouldBe('window.scrollY', "1");
shouldBe('window.scrollX', "1");
scrollToNonFinite(window.NaN, window.NaN);
scrollToNonFinite(window.Infinity, window.Infinity);
scrollToNonFinite(0, window.Infinity);
scrollToNonFinite(-window.Infinity, -window.Infinity);
scrollByNonFinite(window.NaN, window.NaN);
scrollByNonFinite(window.Infinity, window.Infinity);
scrollByNonFinite(0, window.Infinity);
scrollByNonFinite(-window.Infinity, -window.Infinity);
scrollTopNonFinite(window.NaN);
scrollTopNonFinite(window.Infinity);
scrollTopNonFinite(-window.Infinity);
scrollLeftNonFinite(window.NaN);
scrollLeftNonFinite(window.Infinity);
scrollLeftNonFinite(-window.Infinity);
}
onload = function() {
if (window.eventSender)
scroll();
}
</script>
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