109 lines
3.6 KiB
HTML
109 lines
3.6 KiB
HTML
<!DOCTYPE html>
|
|
<title>CSS Anchor Positioning: position-area positioning inside grid</title>
|
|
<link rel="help" href="https://drafts.csswg.org/css-anchor-position/#position-area">
|
|
<script src="/resources/testharness.js"></script>
|
|
<script src="/resources/testharnessreport.js"></script>
|
|
<!--
|
|
Grid:
|
|
|
|
100 100 100 100
|
|
+--------+--------+--------+--------+
|
|
| | | | |
|
|
100 | | | | |
|
|
| | | | |
|
|
+--------+--------+--------+--------+
|
|
| | |XXXXXXXX|XXXXXXXX|
|
|
100 | | |XXXXXXXX|XXXXXXXX|
|
|
| | |XXXXXXXX|XXXXXXXX|
|
|
+--------+--------+--------+--------+
|
|
| | |XXXXXXXX|XXXXXXXX|
|
|
100 | | |XXXXXXXX|XXXXXXXX|
|
|
| | |XXXXXXXX|XXXXXXXX|
|
|
+--------+--------+--------+--------+
|
|
| | | | |
|
|
100 | | | | |
|
|
| | | | |
|
|
+--------+--------+--------+--------+
|
|
|
|
|
|
Inset regions:
|
|
|
|
100 150 150
|
|
+--------+-------------+------------+
|
|
| | | |
|
|
| | | |
|
|
150 | | | |
|
|
| | | |
|
|
| | | |
|
|
+--------+-------------+------------+
|
|
| | | |
|
|
75 | | | |
|
|
| | | |
|
|
+--------+-------------+------------+
|
|
| | | |
|
|
| | | |
|
|
175 | | | |
|
|
| | | |
|
|
| | | |
|
|
+--------+-------------+------------+
|
|
|
|
-->
|
|
|
|
<style>
|
|
#container {
|
|
display: grid;
|
|
grid: 1fr 1fr 1fr 1fr / 1fr 1fr 1fr 1fr;
|
|
position: relative;
|
|
width: 400px;
|
|
height: 400px;
|
|
outline: 1px solid;
|
|
}
|
|
|
|
#anchor {
|
|
position: absolute;
|
|
left: 100px;
|
|
top: 150px;
|
|
width: 150px;
|
|
height: 75px;
|
|
anchor-name: --anchor;
|
|
background: blue;
|
|
}
|
|
|
|
#anchored {
|
|
grid-row-start: 2;
|
|
grid-row-end: span 2;
|
|
grid-column-start: 3;
|
|
grid-column-end: auto;
|
|
position: absolute;
|
|
align-self: stretch;
|
|
justify-self: stretch;
|
|
position-anchor: --anchor;
|
|
border: solid orange;
|
|
}
|
|
</style>
|
|
|
|
<div id="container">
|
|
<div id="anchor"></div>
|
|
<div id="anchored"></div>
|
|
</div>
|
|
<script>
|
|
function test_position_area(position_area, insets, expected_offsets) {
|
|
anchored.style.positionArea = position_area;
|
|
for (const [prop, value] of Object.entries(insets)) {
|
|
anchored.style[prop] = value;
|
|
}
|
|
|
|
test(() => {
|
|
assert_equals(anchored.offsetLeft, expected_offsets.left, "Check expected offsetLeft");
|
|
assert_equals(anchored.offsetTop, expected_offsets.top, "Check expected offsetTop");
|
|
assert_equals(anchored.offsetWidth, expected_offsets.width, "Check expected offsetWidth");
|
|
assert_equals(anchored.offsetHeight, expected_offsets.height, "Check expected offsetHeight");
|
|
}, "Offsets for position-area: " + position_area + " and insets: " + JSON.stringify(insets));
|
|
}
|
|
|
|
test_position_area("span-bottom span-left", {left:"auto", right:"auto", top:"auto", bottom:"auto"},
|
|
{left:100, top:150, width:150, height:150});
|
|
|
|
test_position_area("span-bottom span-left", {left:"10px", right:"10px", top:"10px", bottom:"10px"},
|
|
{left:110, top:160, width:130, height:130});
|
|
</script>
|