Struct DisplayList 

pub struct DisplayList {
    pub items: Vec<DisplayListItem>,
    pub node_mapping: Vec<Option<NodeId>>,
    pub forced_page_breaks: Vec<f32>,
}

The final, renderer-agnostic output of the layout engine.

This is a flat list of drawing and state-management commands, already sorted according to the CSS paint order. A renderer can consume this list directly.

Fields

items: Vec<DisplayListItem>

node_mapping: Vec<Option<NodeId>>

Optional mapping from item index to the DOM NodeId that generated it. Used for pagination to look up CSS break properties. Not all items have a source node (e.g., synthesized decorations).

forced_page_breaks: Vec<f32>

Y-positions where forced page breaks should occur (from break-before/break-after: always). These are absolute Y coordinates in the infinite canvas coordinate system. The slicer will ensure page boundaries align with these positions.

Implementations

impl DisplayList

pub fn to_debug_json(&self) -> String

Generates a JSON representation of the display list for debugging. This includes clip chain analysis showing how clips are stacked.

Trait Implementations

impl Debug for DisplayList

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for DisplayList

fn default() -> DisplayList

Returns the “default value” for a type.