Struct LayoutTreeBuilder 

pub struct LayoutTreeBuilder { /* private fields */ }

Implementations

impl LayoutTreeBuilder

pub fn new() -> Self

pub fn get(&self, index: usize) -> Option<&LayoutNode>

pub fn get_mut(&mut self, index: usize) -> Option<&mut LayoutNode>

pub fn process_node( &mut self, styled_dom: &StyledDom, dom_id: NodeId, parent_idx: Option<usize>, debug_messages: &mut Option<Vec<LayoutDebugMessage>>, ) -> Result<usize>

Main entry point for recursively building the layout tree. This function dispatches to specialized handlers based on the node’s display property to correctly generate anonymous boxes.

pub fn create_anonymous_node( &mut self, parent: usize, anon_type: AnonymousBoxType, fc: FormattingContext, ) -> usize

CSS 2.2 Section 17.2.1 - Anonymous box generation: “In this process, inline-level boxes are wrapped in anonymous boxes as needed to satisfy the constraints of the table model.”

Helper to create an anonymous node in the tree. Anonymous boxes don’t have a corresponding DOM node and are used to enforce the CSS box model structure (e.g., wrapping inline content in blocks, or creating missing table structural elements).

pub fn create_marker_pseudo_element( &mut self, styled_dom: &StyledDom, list_item_dom_id: NodeId, list_item_idx: usize, ) -> usize

Creates a ::marker pseudo-element as the first child of a list-item.

Per CSS Lists Module Level 3, Section 3.1: “For elements with display: list-item, user agents must generate a ::marker pseudo-element as the first child of the principal box.”

The ::marker references the same DOM node as its parent list-item, but is marked as a pseudo-element for proper counter resolution and styling.

pub fn create_node_from_dom( &mut self, styled_dom: &StyledDom, dom_id: NodeId, parent: Option<usize>, debug_messages: &mut Option<Vec<LayoutDebugMessage>>, ) -> Result<usize>

pub fn clone_node_from_old( &mut self, old_node: &LayoutNode, parent: Option<usize>, ) -> usize

pub fn build(self, root_idx: usize) -> LayoutTree