layout: Implement node geometry queries against `BoxTree`'s `Fragment`

This is a followup to #36629, continuing to implement script-based
layout queries  using the `Fragment`s attached to the `BoxTree`. In this
change, geometry queris (apart from parent offset) are calculated using
`Fragment`s hanging of the `BoxTree`.

In order to make this work, all `Fragment`s for inlines split by blocks,
need to be accessible in the `BoxTree`. This required some changes to
the way that box tree items were stored in DOM `BoxSlot`s. Now every
inline level item can have more than a single `BoxTree` item. These are
carefully collected by the `InlineFormattingContextBuilder` -- currently
a bit fragile, but with more documentation.

Co-authored-by: Oriol Brufau <obrufau@igalia.com>
Signed-off-by: Martin Robinson <mrobinson@igalia.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/components/shared/script_layout/lib.rs b/components/shared/script_layout/lib.rs
index 69e577e139d..6efbb2ae3eb 100644
--- a/components/shared/script_layout/lib.rs
+++ b/components/shared/script_layout/lib.rs
@@ -240,9 +240,9 @@ pub trait Layout {
     /// Set the scroll states of this layout after a compositor scroll.
     fn set_scroll_offsets(&mut self, scroll_states: &[ScrollState]);
 
-    fn query_content_box(&self, node: OpaqueNode) -> Option<Rect<Au>>;
-    fn query_content_boxes(&self, node: OpaqueNode) -> Vec<Rect<Au>>;
-    fn query_client_rect(&self, node: OpaqueNode) -> Rect<i32>;
+    fn query_content_box(&self, node: TrustedNodeAddress) -> Option<Rect<Au>>;
+    fn query_content_boxes(&self, node: TrustedNodeAddress) -> Vec<Rect<Au>>;
+    fn query_client_rect(&self, node: TrustedNodeAddress) -> Rect<i32>;
     fn query_element_inner_outer_text(&self, node: TrustedNodeAddress) -> String;
     fn query_nodes_from_point(
         &self,