Struct StyleState 

pub struct StyleState { /* private fields */ }

Per-node style slot holding local and shared style entries (LPAR-07 §7.1).

This type is stored in an Option<Box<StyleState>> on [ObjectNode] (the style field), following the same lazy-alloc pattern as ScrollState (LPAR-05) and NodeAnimSet (LPAR-06). The slot is None for nodes that carry no style overrides, keeping ObjectNode small.

Style entries are keyed by Selector and carry a StylePatch.

• Transition override (Tier 0) — highest precedence; written by active start_transition animations.
• Local entries are owned by the node (add_local_style). They take priority over added entries.
• Added (shared) entries are 'static references (add_style). Lower precedence than local entries.

Within each tier, the last-added entry wins for a given matching selector (§7.2 reverse-registration-order rule).

Implementations

impl StyleState

pub fn new() -> Self

Create an empty style state with an empty transition override slot.

pub fn transition_override_handle(&self) -> Rc<RefCell<TransitionOverride>>

Return a cloned handle to the transition override slot.

Callers (typically start_transition) clone this handle so that animation apply closures can share ownership of the override cell without holding a borrow on the crate::object::ObjectNode.

pub fn local_entries(&self) -> &[(Selector, StylePatch)]

Return the local style entries as a (Selector, StylePatch) slice.

Used by crate::layout::resolve_layout_style to iterate local entries in precedence order.

pub fn added_entries(&self) -> &[(Selector, &'static StylePatch)]

Return the added (shared) style entries as a (Selector, &StylePatch) slice.

Used by crate::layout::resolve_layout_style to iterate added entries in precedence order.

Trait Implementations

impl Default for StyleState

fn default() -> Self

Returns the “default value” for a type.