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https://github.com/RGBCube/serenity
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LibWeb: Bring CSS line-height closer to other engines
This patch makes a few changes to the way we calculate line-height: - `line-height: normal` is now resolved using metrics from the used font (specifically, round(A + D + lineGap)). - `line-height: calc(...)` is now resolved at style compute time. - `line-height` values are now absolutized at style compute time. As a consequence of the above, we no longer need to walk the DOM ancestor chain looking for line-heights during style computation. Instead, values are inherited, resolved and absolutized locally. This is not only much faster, but also makes our line-height metrics match those of other engines like Gecko and Blink.
This commit is contained in:
Andreas Kling
parent
f0722671c3
commit
e7de5cb4d2
385 changed files with 6889 additions and 6893 deletions
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@ -1,31 +1,31 @@
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Viewport <#document> at (0,0) content-size 800x600 children: not-inline
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BlockContainer <html> at (0,0) content-size 800x600 [BFC] children: not-inline
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BlockContainer <body> at (8,8) content-size 784x85.875 children: not-inline
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BlockContainer <body> at (8,8) content-size 784x84 children: not-inline
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TableWrapper <(anonymous)> at (8,8) content-size 2x2 [BFC] children: not-inline
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Box <table#empty-table> at (8,8) content-size 2x2 table-box [TFC] children: not-inline
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BlockContainer <(anonymous)> at (8,10) content-size 784x0 children: inline
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TextNode <#text>
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TextNode <#text>
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Box <table#full-table> at (8,27.46875) content-size 99.171875x66.40625 table-box [TFC] children: not-inline
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TableWrapper <(anonymous)> at (8,10) content-size 99.171875x82 [BFC] children: not-inline
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Box <table#full-table> at (8,27) content-size 99.171875x65 table-box [TFC] children: not-inline
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BlockContainer <(anonymous)> (not painted) children: inline
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TextNode <#text>
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BlockContainer <caption> at (8,10) content-size 82.734375x17.46875 [BFC] children: inline
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"A Caption"
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TextNode <#text>
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BlockContainer <(anonymous)> (not painted) children: inline
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TextNode <#text>
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Box <thead> at (8,10) content-size 95.171875x19.46875 table-header-group children: not-inline
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Box <thead> at (8,10) content-size 95.171875x19 table-header-group children: not-inline
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BlockContainer <(anonymous)> (not painted) children: inline
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TextNode <#text>
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Box <tr> at (10,29.46875) content-size 95.171875x19.46875 table-row children: not-inline
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Box <tr> at (10,29) content-size 95.171875x19 table-row children: not-inline
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BlockContainer <(anonymous)> (not painted) children: inline
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TextNode <#text>
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"Head Cell"
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TextNode <#text>
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BlockContainer <(anonymous)> (not painted) children: inline
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@ -34,15 +34,15 @@ Viewport <#document> at (0,0) content-size 800x600 children: not-inline
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TextNode <#text>
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BlockContainer <(anonymous)> (not painted) children: inline
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TextNode <#text>
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Box <tbody> at (8,29.46875) content-size 95.171875x19.46875 table-row-group children: not-inline
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Box <tbody> at (8,29) content-size 95.171875x19 table-row-group children: not-inline
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BlockContainer <(anonymous)> (not painted) children: inline
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TextNode <#text>
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Box <tr> at (10,50.9375) content-size 95.171875x19.46875 table-row children: not-inline
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Box <tr> at (10,50) content-size 95.171875x19 table-row children: not-inline
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BlockContainer <(anonymous)> (not painted) children: inline
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TextNode <#text>
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BlockContainer <td> at (11,51.9375) content-size 93.171875x17.46875 table-cell [BFC] children: inline
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"Body Cell"
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TextNode <#text>
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BlockContainer <(anonymous)> (not painted) children: inline
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@ -51,15 +51,15 @@ Viewport <#document> at (0,0) content-size 800x600 children: not-inline
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TextNode <#text>
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BlockContainer <(anonymous)> (not painted) children: inline
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TextNode <#text>
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Box <tfoot> at (8,48.9375) content-size 95.171875x19.46875 table-footer-group children: not-inline
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Box <tfoot> at (8,48) content-size 95.171875x19 table-footer-group children: not-inline
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BlockContainer <(anonymous)> (not painted) children: inline
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TextNode <#text>
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Box <tr> at (10,72.40625) content-size 95.171875x19.46875 table-row children: not-inline
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Box <tr> at (10,71) content-size 95.171875x19 table-row children: not-inline
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BlockContainer <(anonymous)> (not painted) children: inline
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TextNode <#text>
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BlockContainer <td> at (11,73.40625) content-size 93.171875x17.46875 table-cell [BFC] children: inline
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TextNode <#text>
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@ -68,29 +68,29 @@ Viewport <#document> at (0,0) content-size 800x600 children: not-inline
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TextNode <#text>
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BlockContainer <(anonymous)> (not painted) children: inline
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TextNode <#text>
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TextNode <#text>
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PaintableWithLines (BlockContainer<BODY>) [8,8 784x85.875]
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PaintableWithLines (TableWrapper(anonymous)) [8,8 2x2]
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PaintableBox (Box<TABLE>#empty-table) [8,8 2x2]
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TextPaintable (TextNode<#text>)
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PaintableBox (Box<TR>) [10,29.46875 95.171875x19.46875]
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PaintableBox (Box<TR>) [10,29 95.171875x19]
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PaintableWithLines (BlockContainer<TD>) [10,29 95.171875x19]
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TextPaintable (TextNode<#text>)
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PaintableBox (Box<TR>) [10,50.9375 95.171875x19.46875]
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PaintableWithLines (BlockContainer<TD>) [10,50.9375 95.171875x19.46875]
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PaintableBox (Box<TR>) [10,50 95.171875x19]
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PaintableWithLines (BlockContainer<TD>) [10,50 95.171875x19]
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TextPaintable (TextNode<#text>)
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PaintableBox (Box<TFOOT>) [8,48.9375 95.171875x19.46875] overflow: [8,48.9375 97.171875x42.9375]
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PaintableBox (Box<TR>) [10,72.40625 95.171875x19.46875]
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PaintableWithLines (BlockContainer<TD>) [10,72.40625 95.171875x19.46875]
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PaintableBox (Box<TFOOT>) [8,48 95.171875x19] overflow: [8,48 97.171875x42]
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PaintableBox (Box<TR>) [10,71 95.171875x19]
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PaintableWithLines (BlockContainer<TD>) [10,71 95.171875x19]
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TextPaintable (TextNode<#text>)
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PaintableWithLines (BlockContainer(anonymous)) [8,93.875 784x0]
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PaintableWithLines (BlockContainer(anonymous)) [8,92 784x0]
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