Struct State 

pub struct State {

    pub disabled: Option<bool>,
    pub focused: Option<bool>,
    pub selected: Option<bool>,
    pub checked: Option<Checked>,
    pub expanded: Option<bool>,
    pub modal: Option<bool>,
    pub busy: Option<bool>,
    pub hidden: Option<bool>,
    pub offscreen: Option<bool>,
    pub readonly: Option<bool>,
    pub multiline: Option<bool>,
    pub required: Option<bool>,
    pub multiselectable: Option<bool>,
    pub orientation: Option<Orientation>,
    pub level: Option<i64>,
    pub position_in_set: Option<i64>,
    pub set_size: Option<i64>,
}

The closed state set. None means “not asserted”, not “false”.

Fields

disabled: Option<bool>

The control refuses interaction.

focused: Option<bool>

Keyboard input goes here.

selected: Option<bool>

The node is selected within its parent set.

checked: Option<Checked>

Checked, unchecked, or mixed.

expanded: Option<bool>

A disclosure is open.

modal: Option<bool>

The node traps interaction while it is present.

busy: Option<bool>

Content is being loaded or recomputed.

hidden: Option<bool>

Present in the tree but not painted.

offscreen: Option<bool>

Every cell is outside the visible area — scrolled away, not undisplayed. Implies State::hidden; the pair without it is refused by validation.

readonly: Option<bool>

Value is displayed but cannot be edited.

multiline: Option<bool>

The text control accepts newlines.

required: Option<bool>

The control requires a value or selection before submission.

multiselectable: Option<bool>

The composite permits more than one selected descendant.

orientation: Option<Orientation>

Layout direction of a composite widget.

level: Option<i64>

Heading or tree depth, starting at 1.

position_in_set: Option<i64>

One-based position among siblings.

set_size: Option<i64>

Number of siblings in the set.

Implementations

impl State

pub fn is_empty(&self) -> bool

Whether every member is unset, in which case the field is omitted.

Trait Implementations

impl Clone for State

fn clone(&self) -> State

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for State

impl Debug for State

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

Formats the value using the given formatter.

impl Default for State

fn default() -> State

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for State

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for State

impl PartialEq for State

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for State

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for State