Struct Semantics 

pub struct Semantics {

    pub role: Role,
    pub label: Option<String>,
    pub focused: bool,
    pub enabled: bool,
    pub selectable_group: bool,
    pub checked: Option<bool>,
    pub selected: Option<bool>,
    pub value: Option<String>,
    pub heading: bool,
    pub live_region: Option<LiveRegion>,
    pub state_description: Option<String>,
    pub traversal_index: Option<f32>,
    pub is_traversal_group: bool,
    pub hidden: bool,
    pub collection_rows: Option<usize>,
    pub collection_columns: Option<usize>,
    pub row_index: Option<usize>,
    pub column_index: Option<usize>,
    pub progress: Option<ProgressRangeInfo>,
    pub error: Option<String>,
    pub expanded: Option<bool>,
}

Semantics attached to a View, used to build the accessibility tree.

Fields

role: Role

Primary role of this node (what kind of thing it is).

label: Option<String>

Human‑readable label for screen readers. For buttons, this is the “name” that is announced.

focused: bool

Whether this node is currently focused.

enabled: bool

Whether this node is actionable. Disabled nodes remain in the tree but are marked not enabled.

selectable_group: bool

Marks this node as a collection of horizontally or vertically stacked selectable elements (ex: Tabs, RadioButtons).

checked: Option<bool>

selected: Option<bool>

value: Option<String>

heading: bool

live_region: Option<LiveRegion>

state_description: Option<String>

traversal_index: Option<f32>

is_traversal_group: bool

hidden: bool

collection_rows: Option<usize>

collection_columns: Option<usize>

row_index: Option<usize>

column_index: Option<usize>

progress: Option<ProgressRangeInfo>

error: Option<String>

expanded: Option<bool>

Implementations

impl Semantics

pub fn new(role: Role) -> Self

pub fn with_label(self, label: impl Into<String>) -> Self

pub fn with_selectable_group(self) -> Self

pub fn with_checked(self, checked: bool) -> Self

pub fn with_selected(self, selected: bool) -> Self

pub fn with_value(self, value: impl Into<String>) -> Self

pub fn with_heading(self) -> Self

pub fn with_live_region(self, region: LiveRegion) -> Self

pub fn with_state_description(self, description: impl Into<String>) -> Self

pub fn with_traversal_index(self, index: f32) -> Self

pub fn with_traversal_group(self) -> Self

pub fn with_hidden(self) -> Self

pub fn with_collection(self, rows: usize, columns: usize) -> Self

pub fn with_collection_item(self, row: usize, column: usize) -> Self

pub fn with_progress_range(self, info: ProgressRangeInfo) -> Self

pub fn with_error(self, message: impl Into<String>) -> Self

pub fn with_expanded(self, expanded: bool) -> Self

Trait Implementations

impl Clone for Semantics

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Semantics

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

Formats the value using the given formatter.

impl Default for Semantics

fn default() -> Self

Returns the “default value” for a type.