Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-06-06 16:45:39 +00:00
Code Issues Projects Releases Packages Wiki Activity

layout: Convert the FragmentTree to physical geometry (#33030)

Browse source 
This converts all geometry in the FragmentTree into physical geometry,
doing conversions ahead of time instead of when traversing the fragment
tree. This is necessary to properly implement BiDi in Servo as we need
to know what side borders are on in mixed RTL and LTR contexts.

In addition, fragments are laid out in a particular context and only
that context knows its writing mode. There were issues where were using
one writing mode to lay out and another to convert to phyisical
coordinates. This isn't an issue now since we only use the default
writing mode, but starts to be an issue with BiDi text.

Closes #25564.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
This commit is contained in:
Martin Robinson 2024-08-14 14:22:06 +02:00 • committed by GitHub
parent 65f90ff1fd
commit d941d2fd67
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
17 changed files with 502 additions and 432 deletions
Download patch file Download diff file Expand all files Collapse all files

4
components/layout_2020/flow/root.rs
View file

@ -353,9 +353,7 @@ impl BoxTree {
let scrollable_overflow = root_fragments
.iter()
.fold(PhysicalRect::zero(), |acc, child| {
let child_overflow = child
.borrow()
.scrollable_overflow(&physical_containing_block);
let child_overflow = child.borrow().scrollable_overflow();
// https://drafts.csswg.org/css-overflow/#scrolling-direction
// We want to clip scrollable overflow on box-start and inline-start