Function sync_accessibility_tree

src/accessibility_web.rs:99–218

(
    state: &mut WebAccessibilityState,
    accessibility_configs: &rustc_hash::FxHashMap<u32, crate::accessibility::AccessibilityConfig>,
    accessibility_bounds: &rustc_hash::FxHashMap<u32, crate:

#[cfg(target_arch = "wasm32")]
pub fn sync_accessibility_tree(
    state: &mut WebAccessibilityState,
    accessibility_configs: &rustc_hash::FxHashMap<u32, crate::accessibility::AccessibilityConfig>,
    accessibility_bounds: &rustc_hash::FxHashMap<u32, crate::math::BoundingBox>,
    accessibility_element_order: &[u32],
    focused_element_id: u32,
    viewport: crate::math::Dimensions,
) {
    // Initialize the hidden DOM root on first call
    if !state.initialized {
        unsafe { ply_a11y_init(); }
        state.initialized = true;
    }

    unsafe { ply_a11y_set_viewport(viewport.width, viewport.height); }

    // Track which IDs exist this frame
    let mut current_ids = FxHashSet::with_capacity_and_hasher(accessibility_configs.len(), Default::default());

    // Iterate in layout order (not HashMap order)
    for &elem_id in accessibility_element_order {
        let (config, bounds) = match (
            accessibility_configs.get(&elem_id),
            accessibility_bounds.get(&elem_id),
        ) {
            (Some(config), Some(bounds)) => (config, bounds),
            _ => continue,
        };
        current_ids.insert(elem_id);

        let role_str = role_to_aria_string(&config.role);
        let tab_index = if config.focusable {
            config.tab_index.unwrap_or(0)
        } else {
            -1
        };

        unsafe {
            ply_a11y_upsert_node(
                elem_id,
                role_str.as_ptr(),
                role_str.len() as u32,
                config.label.as_ptr(),
                config.label.len() as u32,
                tab_index,
            );
            ply_a11y_set_bounds(elem_id, bounds.x, bounds.y, bounds.width, bounds.height);
        }

        // Heading level
        if let AccessibilityRole::Heading { level } = &config.role {
            unsafe { ply_a11y_set_heading_level(elem_id, *level as u32); }
        }

        // Checked state
        if let Some(checked) = config.checked {
            unsafe { ply_a11y_set_checked(elem_id, if checked { 1 } else { 0 }); }
        }