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layout: Parameterize content box query (#38935)

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Parameterize and rename both `Layout::content_box_query` and
`Layout::content_boxes_query` to support the query of rendered padding
area and content area that accounts for transform and scroll. Both of
these query have been misleading for a time since they are using border
box, instead of content box of a Node.

This PR adds a new type `layout_api::BoxAreaType` to be passed from
`ScriptThread` to `LayoutThread` to query the respective area. It is
then used for the query within `IntersectionObserver` to pass several
WPTs.

Testing: Existing WPT Coverage.

---------

Signed-off-by: Jo Steven Novaryo <jo.steven.novaryo@huawei.com>
This commit is contained in:
Jo Steven Novaryo 2025-08-27 10:27:53 +08:00 • committed by GitHub
parent 32aba08be7
commit 10ca3b6fde
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21 changed files with 125 additions and 125 deletions
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4
components/script/dom/document.rs
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@ -1029,7 +1029,7 @@ impl Document {
// inside other scrollable containers. Ideally this should use an implementation of
// `scrollIntoView` when that is available:
// See https://github.com/servo/servo/issues/24059.
let rect = element.upcast::<Node>().content_box().unwrap_or_default();
let rect = element.upcast::<Node>().border_box().unwrap_or_default();
// In order to align with element edges, we snap to unscaled pixel boundaries, since
// the paint thread currently does the same for drawing elements. This is important
@ -1348,7 +1348,7 @@ impl Document {
// Notify the embedder to display an input method.
if let Some(kind) = elem.input_method_type() {
let rect = elem.upcast::<Node>().content_box().unwrap_or_default();
let rect = elem.upcast::<Node>().border_box().unwrap_or_default();
let rect = Rect::new(
Point2D::new(rect.origin.x.to_px(), rect.origin.y.to_px()),
Size2D::new(rect.size.width.to_px(), rect.size.height.to_px()),