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script: Eliminate PseudoElementType (#36146)

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Servo has a `PseudoElementType` which more or less duplicate's Stylo's
`PseudoElement` with the addition of a non-pseudo element variant. This
type needs to be converted into `PseudoElement` anyway when asking for
the style of an element from Stylo, so eliminate Servo's version and
simply use `Option<PseudoElement>` with the `None` variant meaning the
non-pseudo.

This is preparation for adding support for the `::marker` pseudo
element.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
This commit is contained in:
Martin Robinson 2025-03-26 09:33:12 +01:00 • committed by GitHub
parent 09041e77a0
commit a9b393a854
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7 changed files with 75 additions and 145 deletions
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14
components/layout_2020/query.rs
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@ -9,7 +9,6 @@ use app_units::Au;
use euclid::default::{Point2D, Rect};
use euclid::{SideOffsets2D, Size2D, Vector2D};
use itertools::Itertools;
use log::warn;
use script_layout_interface::wrapper_traits::{
LayoutNode, ThreadSafeLayoutElement, ThreadSafeLayoutNode,
};
@ -117,15 +116,10 @@ pub fn process_resolved_style_request<'dom>(
// We call process_resolved_style_request after performing a whole-document
// traversal, so in the common case, the element is styled.
let layout_element = node.to_threadsafe().as_element().unwrap();
let layout_element = match *pseudo {
None => Some(layout_element),
Some(PseudoElement::Before) => layout_element.get_before_pseudo(),
Some(PseudoElement::After) => layout_element.get_after_pseudo(),
Some(_) => {
warn!("Got unexpected pseudo element type!");
None
},
};
let layout_element = pseudo.map_or_else(
|| Some(layout_element),
|pseudo_element| layout_element.get_pseudo(pseudo_element),
);
let layout_element = match layout_element {
None => {