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LibWeb: Improve span column width distribution

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Compute the contributions to a spanning cell width from each cell in the
span. This better handles uneven column widths, since each cell
contribution is proportional with its own width as opposed to the own
width of the first cell in the span.

This better matches the behavior of other browsers and further aligns
with the specification.
This commit is contained in:
Andi Gallo 2023-06-19 09:28:04 +00:00 • committed by Andreas Kling
parent b37fbcb159
commit ac6af51549
6 changed files with 118 additions and 62 deletions
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54
Tests/LibWeb/Layout/expected/table/border-spacing-colspan.txt
View file

@ -5,14 +5,14 @@ Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <body> at (8,8) content-size 784x259.34375 children: not-inline
BlockContainer <(anonymous)> at (8,8) content-size 784x0 children: inline
TextNode <#text>
TableWrapper <(anonymous)> at (8,8) content-size 241.625x259.34375 [BFC] children: not-inline
Box <table> at (9,9) content-size 241.625x257.34375 table-box [TFC] children: not-inline
TableWrapper <(anonymous)> at (8,8) content-size 239.90625x259.34375 [BFC] children: not-inline
Box <table> at (9,9) content-size 239.90625x257.34375 table-box [TFC] children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
Box <tbody> at (9,9) content-size 163.625x197.34375 table-row-group children: not-inline
Box <tbody> at (9,9) content-size 161.90625x197.34375 table-row-group children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
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Box <tr> at (29,19) content-size 163.625x39.46875 table-row children: not-inline
Box <tr> at (29,19) content-size 161.90625x39.46875 table-row children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (50,30) content-size 14.265625x17.46875 table-cell [BFC] children: inline
@ -22,42 +22,42 @@ Viewport <#document> at (0,0) content-size 800x600 children: not-inline
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (126.265625,30) content-size 14.265625x17.46875 table-cell [BFC] children: inline
BlockContainer <td> at (126.265625,30) content-size 12.546875x17.46875 table-cell [BFC] children: inline
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BlockContainer <(anonymous)> (not painted) children: inline
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BlockContainer <td> at (202.53125,79.46875) content-size 9.09375x17.46875 table-cell [BFC] children: inline
BlockContainer <td> at (200.8125,79.46875) content-size 9.09375x17.46875 table-cell [BFC] children: inline
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"2"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
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BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
Box <tr> at (29,97.9375) content-size 163.625x39.46875 table-row children: not-inline
Box <tr> at (29,97.9375) content-size 161.90625x39.46875 table-row children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (50,128.9375) content-size 14.265625x17.46875 table-cell [BFC] children: inline
@ -67,23 +67,23 @@ Viewport <#document> at (0,0) content-size 800x600 children: not-inline
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (126.265625,128.9375) content-size 14.265625x17.46875 table-cell [BFC] children: inline
BlockContainer <td> at (126.265625,128.9375) content-size 12.546875x17.46875 table-cell [BFC] children: inline
line 0 width: 12.546875, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 1, rect: [127.265625,128.9375 12.546875x17.46875]
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"F"
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (202.53125,128.9375) content-size 9.09375x17.46875 table-cell [BFC] children: inline
BlockContainer <td> at (200.8125,128.9375) content-size 9.09375x17.46875 table-cell [BFC] children: inline
line 0 width: 9.09375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
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"3"
TextNode <#text>
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BlockContainer <(anonymous)> (not painted) children: inline
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Box <tr> at (29,137.40625) content-size 163.625x39.46875 table-row children: not-inline
Box <tr> at (29,137.40625) content-size 161.90625x39.46875 table-row children: not-inline
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (50,178.40625) content-size 14.265625x17.46875 table-cell [BFC] children: inline
@ -93,23 +93,23 @@ Viewport <#document> at (0,0) content-size 800x600 children: not-inline
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (126.265625,178.40625) content-size 14.265625x17.46875 table-cell [BFC] children: inline
BlockContainer <td> at (126.265625,178.40625) content-size 12.546875x17.46875 table-cell [BFC] children: inline
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TextNode <#text>
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BlockContainer <td> at (202.53125,178.40625) content-size 9.09375x17.46875 table-cell [BFC] children: inline
BlockContainer <td> at (200.8125,178.40625) content-size 9.09375x17.46875 table-cell [BFC] children: inline
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@ -119,16 +119,16 @@ Viewport <#document> at (0,0) content-size 800x600 children: not-inline
TextNode <#text>
BlockContainer <(anonymous)> (not painted) children: inline
TextNode <#text>
BlockContainer <td> at (126.265625,227.875) content-size 14.265625x17.46875 table-cell [BFC] children: inline
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