Struct gtk4::ATContext

#[repr(transparent)]
pub struct ATContext { /* private fields */ }

ATContext is an abstract class provided by GTK to communicate to platform-specific assistive technologies API.

Each platform supported by GTK implements a ATContext subclass, and is responsible for updating the accessible state in response to state changes in Accessible.

This is an Abstract Base Class, you cannot instantiate it.

Implements

glib::ObjectExt

Implementations

impl ATContext

pub fn create( accessible_role: AccessibleRole, accessible: &impl IsA<Accessible>, display: &impl IsA<Display> ) -> Option<ATContext>

Creates a new ATContext instance for the given accessible role, accessible instance, and display connection.

The ATContext implementation being instantiated will depend on the platform.

accessible_role

the accessible role used by the ATContext

accessible

the Accessible implementation using the ATContext

display

the gdk::Display used by the ATContext

Returns

the ATContext

pub fn accessible(&self) -> Accessible

Retrieves the Accessible using this context.

Returns

a Accessible

pub fn accessible_role(&self) -> AccessibleRole

Retrieves the accessible role of this context.

Returns

a AccessibleRole

pub fn set_accessible_role(&self, accessible_role: AccessibleRole)

The accessible role used by the AT context.

Depending on the given role, different states and properties can be set or retrieved.

pub fn display(&self) -> Option<Display>

The gdk::Display for the ATContext.

pub fn set_display<P: IsA<Display>>(&self, display: Option<&P>)

The gdk::Display for the ATContext.

pub fn connect_state_change<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

Emitted when the attributes of the accessible for the ATContext instance change.

pub fn connect_accessible_role_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

pub fn connect_display_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

Trait Implementations

impl Clone for ATContext

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ATContext

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

Formats the value using the given formatter.

impl Display for ATContext

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

Formats the value using the given formatter.

impl Hash for ATContext

fn hash<H>(&self, state: &mut H)where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ATContext

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl ParentClassIs for ATContext

type Parent = Object

impl<OT: ObjectType> PartialEq<OT> for ATContext

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<OT: ObjectType> PartialOrd<OT> for ATContext

fn partial_cmp(&self, other: &OT) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StaticType for ATContext

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for ATContext