layout: Hide collapsed borders crossed by spanning cells (#35129)

For example, a cell with `rowspan="2"` can cross a collapsed border that
was set on the rows. Now the slice of this row border that is crossed
by the cell will be hidden.

Signed-off-by: Oriol Brufau <obrufau@igalia.com>
This commit is contained in:
Oriol Brufau 2025-01-23 06:23:03 -08:00 committed by GitHub
parent aa54a0b1a6
commit 5e5379d3bf
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
7 changed files with 290 additions and 21 deletions

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@ -247576,6 +247576,58 @@
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@ -0,0 +1,44 @@
<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Test (Tables): spanning cells crossing collapsed track borders</title>
<link rel="author" title="Oriol Brufau" href="obrufau@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-tables/#border-collapsing">
<link rel="help" href="https://github.com/servo/servo/issues/35123">
<link rel="match" href="../../reference/ref-filled-green-200px-square.html">
<meta name="assert" content="
The cells with colspan cross columns with red borders.
These red borders shouldn't be visible.
">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
<style>
table { border-collapse: collapse; font: 20px/1 Ahem; color: transparent; background: green; }
table { border: 30px solid green; }
tr, col { border: 20px solid red }
td { padding: 0; border: 20px solid green; }
td[rowspan], td[colspan] { border: none }
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<table>
<col></col> <col></col> <col></col> <col></col>
<tr>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr>
<td colspan="4">X X X X</td>
</tr>
<tr>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr>
<td colspan="4">X X X X</td>
</tr>
</table>

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@ -0,0 +1,44 @@
<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Test (Tables): spanning cells crossing collapsed track borders</title>
<link rel="author" title="Oriol Brufau" href="obrufau@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-tables/#border-collapsing">
<link rel="help" href="https://github.com/servo/servo/issues/35123">
<link rel="match" href="../../reference/ref-filled-green-200px-square.html">
<meta name="assert" content="
The cells with rowspan cross rows with red borders.
These red borders shouldn't be visible.
">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
<style>
table { border-collapse: collapse; font: 20px/1 Ahem; color: transparent; background: green; }
table { border: 30px solid green; }
tr, col { border: 20px solid red }
td { padding: 0; border: 20px solid green; }
td[rowspan], td[colspan] { border: none }
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<table>
<col></col> <col></col> <col></col> <col></col>
<tr>
<td>X</td>
<td rowspan="4">X<br><br>X<br><br>X<br><br>X</td>
<td>X</td>
<td rowspan="4">X<br><br>X<br><br>X<br><br>X</td>
</tr>
<tr>
<td>X</td>
<td>X</td>
</tr>
<tr>
<td>X</td>
<td>X</td>
</tr>
<tr>
<td>X</td>
<td>X</td>
</tr>
</table>

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@ -0,0 +1,47 @@
<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Test (Tables): spanning cells crossing collapsed track borders</title>
<link rel="author" title="Oriol Brufau" href="obrufau@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-tables/#border-collapsing">
<link rel="help" href="https://github.com/servo/servo/issues/35123">
<link rel="match" href="../../reference/ref-filled-green-200px-square.html">
<meta name="assert" content="
The cell with colspan and rowspan crosses columns and rows with red borders.
These red borders shouldn't be visible.
">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
<style>
table { border-collapse: collapse; font: 20px/1 Ahem; color: transparent; background: green; }
table { border: 30px solid green; }
tr, col { border: 20px solid red }
td { padding: 0; border: 20px solid green; }
td[rowspan], td[colspan] { border: none }
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<table>
<col></col> <col></col> <col></col> <col></col>
<tr>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr>
<td>X</td>
<td colspan="2" rowspan="2">X X<br><br>X X</td>
<td>X</td>
</tr>
<tr>
<td>X</td>
<td>X</td>
</tr>
<tr>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
</table>

View file

@ -0,0 +1,43 @@
<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Test (Tables): spanning cells crossing collapsed track borders</title>
<link rel="author" title="Oriol Brufau" href="obrufau@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-tables/#border-collapsing">
<link rel="help" href="https://github.com/servo/servo/issues/35123">
<link rel="match" href="../../reference/ref-filled-green-200px-square.html">
<meta name="assert" content="
The cells with colspan cross columns with red borders.
The cells with rowspan cross rows with red borders.
These red borders shouldn't be visible.
">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
<style>
table { border-collapse: collapse; font: 20px/1 Ahem; color: transparent; background: green; }
table { border: 30px solid green; }
tr, col { border: 20px solid red }
td { padding: 0; border: 20px solid green; }
td[rowspan], td[colspan] { border: none }
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<table>
<col></col> <col></col> <col></col> <col></col>
<tr>
<td>X</td>
<td rowspan="4">X<br><br>X<br><br>X<br><br>X</td>
<td>X</td>
<td rowspan="4">X<br><br>X<br><br>X<br><br>X</td>
</tr>
<tr>
<td colspan="4">X X X X</td>
</tr>
<tr>
<td>X</td>
<td>X</td>
</tr>
<tr>
<td colspan="4">X X X X</td>
</tr>
</table>