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LibWeb: Fix upper limit of span when computing column measures

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The maximum span limit has to be inclusive, not exclusive.
This commit is contained in:
Andi Gallo 2023-06-10 00:55:02 +00:00 • committed by Andreas Kling
parent 940d9b98ae
commit 50df78d2a2
3 changed files with 73 additions and 1 deletions
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45
Tests/LibWeb/Layout/expected/table/colspan-width-distribution.txt Normal file
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@ -0,0 +1,45 @@
Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <html> at (0,0) content-size 800x60.9375 [BFC] children: not-inline
BlockContainer <(anonymous)> at (0,0) content-size 800x0 children: inline
TextNode <#text>
BlockContainer <body> at (8,8) content-size 784x44.9375 children: not-inline
BlockContainer <(anonymous)> at (8,8) content-size 784x0 children: inline
TextNode <#text>
TableWrapper <(anonymous)> at (8,8) content-size 32.904952x44.9375 [BFC] children: not-inline
Box <table> at (9,9) content-size 32.904952x42.9375 table-box [TFC] children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
Box <tbody> at (9,9) content-size 34.904952x42.9375 table-row-group children: not-inline
Box <tr> at (9,9) content-size 34.904952x21.46875 table-row children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (11,11) content-size 17.561202x17.46875 table-cell [BFC] children: inline
line 0 width: 14.265625, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 1, rect: [13,11 14.265625x17.46875]
"A"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (32.561202,11) content-size 9.34375x17.46875 table-cell [BFC] children: inline
line 0 width: 9.34375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 1, rect: [32.561202,11 9.34375x17.46875]
"B"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
Box <tr> at (9,30.46875) content-size 34.904952x21.46875 table-row children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (11,32.46875) content-size 30.904952x17.46875 table-cell [BFC] children: inline
line 0 width: 33.3125, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 3, rect: [11,32.46875 33.3125x17.46875]
"CDE"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <(anonymous)> at (8,52.9375) content-size 784x0 children: inline
TextNode <#text>

27
Tests/LibWeb/Layout/input/table/colspan-width-distribution.html Normal file
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@ -0,0 +1,27 @@
<!DOCTYPE html>
<html lang="en">
<head>
<title>Computing column measures</title>
<style>
table, td {
border: 1px solid black;
border-spacing: 0px;
text-align: center;
}
</style>
</head>
<body>
<table>
<tr>
<td>A</td>
<td>B</td>
</tr>
<tr>
<td colspan="2">CDE</td>
</tr>
</table>
</body>
</html>

2
Userland/Libraries/LibWeb/Layout/TableFormattingContext.cpp
View file

@ -201,7 +201,7 @@ void TableFormattingContext::compute_table_measures()
}
}
for (size_t current_column_span = 2; current_column_span < max_cell_column_span; current_column_span++) {
for (size_t current_column_span = 2; current_column_span <= max_cell_column_span; current_column_span++) {
// https://www.w3.org/TR/css-tables-3/#min-content-width-of-a-column-based-on-cells-of-span-up-to-n-n--1
Vector<Vector<CSSPixels>> cell_min_contributions_by_column_index;
cell_min_contributions_by_column_index.resize(m_columns.size());