Struct SemanticsNode 

pub struct SemanticsNode {

    pub node_id: NodeId,
    pub role: SemanticsRole,
    pub widget_role: Option<SemanticsWidgetRole>,
    pub actions: Vec<SemanticsAction>,
    pub children: Vec<SemanticsNode>,
    pub description: Option<String>,
    pub state_description: Option<String>,
    pub on_click_label: Option<String>,
    pub selected: Option<bool>,
    pub toggled: Option<bool>,
    pub enabled: bool,
    pub custom_actions: Vec<SemanticsCustomAction>,
    pub canvas_children: Vec<CanvasSemanticsNode>,
    pub editable_text: bool,
    pub text_selection: Option<TextRange>,
}

A single node within the semantics tree.

Not Eq: a node now carries drawn-control bounds, which are floats. The tree is compared for “did anything a screen reader can see change”, and that comparison is PartialEq everywhere else on the accessibility path (AccessibilityRect, AccessibilityElement) for the same reason.

Fields

node_id: NodeId

role: SemanticsRole

Where this node sits in the tree (layout, text, subcomposition …).

widget_role: Option<SemanticsWidgetRole>

What kind of control this node is, as a screen reader announces it — Compose’s Role. Separate from SemanticsNode::role because a clickable Row is structurally a layout node and semantically a button.

actions: Vec<SemanticsAction>

children: Vec<SemanticsNode>

description: Option<String>

state_description: Option<String>

on_click_label: Option<String>

selected: Option<bool>

toggled: Option<bool>

enabled: bool

custom_actions: Vec<SemanticsCustomAction>

canvas_children: Vec<CanvasSemanticsNode>

Controls this node drew rather than laid out; their bounds are relative to this node’s own top-left. See CanvasSemanticsNode.

editable_text: bool

text_selection: Option<TextRange>

Trait Implementations

impl Clone for SemanticsNode

fn clone(&self) -> SemanticsNode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SemanticsNode

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

Formats the value using the given formatter.

impl Default for SemanticsNode

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for SemanticsNode

fn eq(&self, other: &SemanticsNode) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for SemanticsNode