RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-27 10:27:35 +00:00
Code Issues Activity Actions

LibWeb: Bring CSS line-height closer to other engines

Browse source 
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 2024-01-12 12:39:40 +01:00
parent f0722671c3
commit e7de5cb4d2
385 changed files with 6889 additions and 6893 deletions
Download patch file Download diff file Expand all files Collapse all files

40
Tests/LibWeb/Layout/expected/block-and-inline/button-width.txt
View file

@ -1,29 +1,29 @@
Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <html> at (0,0) content-size 800x58.9375 [BFC] children: not-inline
BlockContainer <body> at (8,8) content-size 784x42.9375 children: not-inline
BlockContainer <button.btn.fixed-width> at (13,10) content-size 190x17.46875 children: not-inline
BlockContainer <(anonymous)> at (13,10) content-size 190x17.46875 flex-container(column) [FFC] children: not-inline
BlockContainer <(anonymous)> at (13,10) content-size 190x17.46875 flex-item [BFC] children: inline
line 0 width: 94.921875, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 11, rect: [61,10 94.921875x17.46875]
BlockContainer <html> at (0,0) content-size 800x58 [BFC] children: not-inline
BlockContainer <body> at (8,8) content-size 784x42 children: not-inline
BlockContainer <button.btn.fixed-width> at (13,10) content-size 190x17 children: not-inline
BlockContainer <(anonymous)> at (13,10) content-size 190x17 flex-container(column) [FFC] children: not-inline
BlockContainer <(anonymous)> at (13,10) content-size 190x17 flex-item [BFC] children: inline
line 0 width: 94.921875, height: 17, bottom: 17, baseline: 13.296875
frag 0 from TextNode start: 0, length: 11, rect: [61,10 94.921875x17]
"200px width"
TextNode <#text>
BlockContainer <button.btn> at (13,31.46875) content-size 324.671875x17.46875 children: not-inline
BlockContainer <(anonymous)> at (13,31.46875) content-size 324.671875x17.46875 flex-container(column) [FFC] children: not-inline
BlockContainer <(anonymous)> at (13,31.46875) content-size 324.671875x17.46875 flex-item [BFC] children: inline
line 0 width: 324.671875, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 39, rect: [13,31.46875 324.671875x17.46875]
BlockContainer <button.btn> at (13,31) content-size 324.671875x17 children: not-inline
BlockContainer <(anonymous)> at (13,31) content-size 324.671875x17 flex-container(column) [FFC] children: not-inline
BlockContainer <(anonymous)> at (13,31) content-size 324.671875x17 flex-item [BFC] children: inline
line 0 width: 324.671875, height: 17, bottom: 17, baseline: 13.296875
frag 0 from TextNode start: 0, length: 39, rect: [13,31 324.671875x17]
"auto width should behave as fit-content"
TextNode <#text>
ViewportPaintable (Viewport<#document>) [0,0 800x600]
PaintableWithLines (BlockContainer<HTML>) [0,0 800x58.9375]
PaintableWithLines (BlockContainer<BODY>) [8,8 784x42.9375]
PaintableWithLines (BlockContainer<BUTTON>.btn.fixed-width) [8,8 200x21.46875]
PaintableWithLines (BlockContainer(anonymous)) [13,10 190x17.46875]
PaintableWithLines (BlockContainer(anonymous)) [13,10 190x17.46875]
PaintableWithLines (BlockContainer<HTML>) [0,0 800x58]
PaintableWithLines (BlockContainer<BODY>) [8,8 784x42]
PaintableWithLines (BlockContainer<BUTTON>.btn.fixed-width) [8,8 200x21]
PaintableWithLines (BlockContainer(anonymous)) [13,10 190x17]
PaintableWithLines (BlockContainer(anonymous)) [13,10 190x17]
TextPaintable (TextNode<#text>)
PaintableWithLines (BlockContainer<BUTTON>.btn) [8,29.46875 334.671875x21.46875]
PaintableWithLines (BlockContainer(anonymous)) [13,31.46875 324.671875x17.46875]
PaintableWithLines (BlockContainer(anonymous)) [13,31.46875 324.671875x17.46875]
PaintableWithLines (BlockContainer<BUTTON>.btn) [8,29 334.671875x21]
PaintableWithLines (BlockContainer(anonymous)) [13,31 324.671875x17]
PaintableWithLines (BlockContainer(anonymous)) [13,31 324.671875x17]
TextPaintable (TextNode<#text>)