diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:44:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:44:51 +0000 |
| commit | 9e3c08db40b8916968b9f30096c7be3f00ce9647 (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /layout/style/test/test_position_sticky.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-upstream.tar.xz thunderbird-upstream.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'layout/style/test/test_position_sticky.html')
| -rw-r--r-- | layout/style/test/test_position_sticky.html | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/layout/style/test/test_position_sticky.html b/layout/style/test/test_position_sticky.html new file mode 100644 index 0000000000..b542737e54 --- /dev/null +++ b/layout/style/test/test_position_sticky.html @@ -0,0 +1,89 @@ +<!DOCTYPE HTML> +<html> +<!-- +https://bugzilla.mozilla.org/show_bug.cgi?id=886646 +--> +<head> + <meta charset="utf-8"> + <title>Test for Bug 886646</title> + <script src="/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> + <style type="text/css"> + #scroller { + width: 100px; + height: 100px; + padding: 10px; + border: 10px solid black; + margin: 10px; + overflow: hidden; + } + #container { + width: 50px; + height: 50px; + } + #sticky { + position: sticky; + width: 10px; + height: 10px; + overflow: hidden; + } + </style> +</head> +<body> +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=886646">Mozilla Bug 886646</a> +<div id="display"> + <div id="scroller"> + <div id="container"> + <div id="sticky"></div> + </div> + </div> +</div> +<pre id="test"> +<script type="application/javascript"> + + +/** Test for Bug 886646 - Offsets for sticky positioning, when accessed through + * getComputedStyle(), should be accurately computed. In particular, + * percentage offsets should be computed in terms of the scroll container's + * content box. */ + +// Test that percentage sticky offsets are computed in terms of the +// scroll container's content box +var offsets = { + "top": 10, + "left": 20, + "bottom": 30, + "right": 40, +}; + +var scroller = document.getElementById("scroller"); +var container = document.getElementById("container"); +var sticky = document.getElementById("sticky"); +var cs = getComputedStyle(sticky, ""); + +for (var prop in offsets) { + sticky.style[prop] = offsets[prop] + "%"; + is(cs[prop], offsets[prop] + "px"); +} + +// ... even in the presence of scrollbars +scroller.style.overflow = "scroll"; +container.style.width = "100%"; +container.style.height = "100%"; + +var ccs = getComputedStyle(container, ""); + +function isApproximatelyEqual(a, b) { + return Math.abs(a - b) < 0.001; +} + +for (var prop in offsets) { + sticky.style[prop] = offsets[prop] + "%"; + var basis = parseFloat(ccs[prop == "left" || prop == "right" ? + "width" : "height"]) / 100; + ok(isApproximatelyEqual(parseFloat(cs[prop]), offsets[prop] * basis)); +} +</script> +</pre> +</body> +</html> |