Struct LayoutContext 

pub struct LayoutContext<'a, T: ParsedFontTrait> {
    pub styled_dom: &'a StyledDom,
    pub font_manager: &'a FontManager<T>,
    pub selections: &'a BTreeMap<DomId, SelectionState>,
    pub text_selections: &'a BTreeMap<DomId, TextSelection>,
    pub debug_messages: &'a mut Option<Vec<LayoutDebugMessage>>,
    pub counters: &'a mut BTreeMap<(usize, String), i32>,
    pub viewport_size: LogicalSize,
    pub fragmentation_context: Option<&'a mut FragmentationContext>,
    pub cursor_is_visible: bool,
    pub cursor_location: Option<(DomId, NodeId, TextCursor)>,
}

Central context for a single layout pass.

Fields

styled_dom: &'a StyledDom

font_manager: &'a FontManager<T>

selections: &'a BTreeMap<DomId, SelectionState>

Legacy per-node selection state (for backward compatibility)

text_selections: &'a BTreeMap<DomId, TextSelection>

New multi-node text selection with anchor/focus model

debug_messages: &'a mut Option<Vec<LayoutDebugMessage>>

counters: &'a mut BTreeMap<(usize, String), i32>

viewport_size: LogicalSize

fragmentation_context: Option<&'a mut FragmentationContext>

Fragmentation context for CSS Paged Media (PDF generation) When Some, layout respects page boundaries and generates one DisplayList per page

cursor_is_visible: bool

Whether the text cursor should be drawn (managed by CursorManager blink timer) When false, the cursor is in the “off” phase of blinking and should not be rendered. When true (default), the cursor is visible.

cursor_location: Option<(DomId, NodeId, TextCursor)>

Current cursor location from CursorManager (dom_id, node_id, cursor) This is separate from selections - the cursor represents the text insertion point in a contenteditable element and should be painted independently.

Implementations

impl<'a, T: ParsedFontTrait> LayoutContext<'a, T>

pub fn has_debug(&self) -> bool

Check if debug messages are enabled (for use with lazy macros)

pub fn debug_log_inner(&mut self, message: String)

Internal method - called by debug_log! macro after checking has_debug()

pub fn debug_info_inner(&mut self, message: String)

Internal method - called by debug_info! macro after checking has_debug()

pub fn debug_warning_inner(&mut self, message: String)

Internal method - called by debug_warning! macro after checking has_debug()

pub fn debug_error_inner(&mut self, message: String)

Internal method - called by debug_error! macro after checking has_debug()

pub fn debug_box_props_inner(&mut self, message: String)

Internal method - called by debug_box_props! macro after checking has_debug()

pub fn debug_css_getter_inner(&mut self, message: String)

Internal method - called by debug_css_getter! macro after checking has_debug()

pub fn debug_bfc_layout_inner(&mut self, message: String)

Internal method - called by debug_bfc_layout! macro after checking has_debug()

pub fn debug_ifc_layout_inner(&mut self, message: String)

Internal method - called by debug_ifc_layout! macro after checking has_debug()

pub fn debug_table_layout_inner(&mut self, message: String)

Internal method - called by debug_table_layout! macro after checking has_debug()

pub fn debug_display_type_inner(&mut self, message: String)

Internal method - called by debug_display_type! macro after checking has_debug()

pub fn debug_info(&mut self, message: impl Into<String>)

👎Deprecated: Use debug_info! macro for lazy evaluation

pub fn debug_warning(&mut self, message: impl Into<String>)

👎Deprecated: Use debug_warning! macro for lazy evaluation

pub fn debug_error(&mut self, message: impl Into<String>)

👎Deprecated: Use debug_error! macro for lazy evaluation

pub fn debug_log(&mut self, message: &str)

👎Deprecated: Use debug_log! macro for lazy evaluation

pub fn debug_box_props(&mut self, message: impl Into<String>)

👎Deprecated: Use debug_box_props! macro for lazy evaluation

pub fn debug_css_getter(&mut self, message: impl Into<String>)

👎Deprecated: Use debug_css_getter! macro for lazy evaluation

pub fn debug_bfc_layout(&mut self, message: impl Into<String>)

👎Deprecated: Use debug_bfc_layout! macro for lazy evaluation

pub fn debug_ifc_layout(&mut self, message: impl Into<String>)

👎Deprecated: Use debug_ifc_layout! macro for lazy evaluation

pub fn debug_table_layout(&mut self, message: impl Into<String>)

👎Deprecated: Use debug_table_layout! macro for lazy evaluation

pub fn debug_display_type(&mut self, message: impl Into<String>)

👎Deprecated: Use debug_display_type! macro for lazy evaluation