RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-26 15:07:45 +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

28
Tests/LibWeb/Layout/expected/input-text-node-invalidation-on-value-change.txt
View file

@ -1,22 +1,22 @@
Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <html> at (0,0) content-size 800x41.84375 [BFC] children: not-inline
BlockContainer <body> at (8,8) content-size 784x25.84375 children: inline
line 0 width: 202, height: 25.84375, bottom: 25.84375, baseline: 16.921875
frag 0 from BlockContainer start: 0, length: 0, rect: [9,9 200x23.84375]
BlockContainer <input#foo> at (9,9) content-size 200x23.84375 inline-block [BFC] children: not-inline
Box <div> at (11,10) content-size 196x21.84375 flex-container(row) [FFC] children: not-inline
BlockContainer <div> at (11,10) content-size 196x21.84375 flex-item [BFC] children: inline
line 0 width: 62.171875, height: 21.84375, bottom: 21.84375, baseline: 16.921875
frag 0 from TextNode start: 0, length: 4, rect: [11,10 62.171875x21.84375]
BlockContainer <html> at (0,0) content-size 800x42 [BFC] children: not-inline
BlockContainer <body> at (8,8) content-size 784x26 children: inline
line 0 width: 202, height: 26, bottom: 26, baseline: 17
frag 0 from BlockContainer start: 0, length: 0, rect: [9,9 200x24]
BlockContainer <input#foo> at (9,9) content-size 200x24 inline-block [BFC] children: not-inline
Box <div> at (11,10) content-size 196x22 flex-container(row) [FFC] children: not-inline
BlockContainer <div> at (11,10) content-size 196x22 flex-item [BFC] children: inline
line 0 width: 62.171875, height: 22, bottom: 22, baseline: 17
frag 0 from TextNode start: 0, length: 4, rect: [11,10 62.171875x22]
"PASS"
TextNode <#text>
TextNode <#text>
TextNode <#text>
ViewportPaintable (Viewport<#document>) [0,0 800x600]
PaintableWithLines (BlockContainer<HTML>) [0,0 800x41.84375]
PaintableWithLines (BlockContainer<BODY>) [8,8 784x25.84375]
PaintableWithLines (BlockContainer<INPUT>#foo) [8,8 202x25.84375]
PaintableBox (Box<DIV>) [9,9 200x23.84375]
PaintableWithLines (BlockContainer<DIV>) [11,10 196x21.84375]
PaintableWithLines (BlockContainer<HTML>) [0,0 800x42]
PaintableWithLines (BlockContainer<BODY>) [8,8 784x26]
PaintableWithLines (BlockContainer<INPUT>#foo) [8,8 202x26]
PaintableBox (Box<DIV>) [9,9 200x24]
PaintableWithLines (BlockContainer<DIV>) [11,10 196x22]
TextPaintable (TextNode<#text>)