Struct Object 

pub struct Object { /* private fields */ }

The base object class for the Accessibility Toolkit API.

This class is the primary class for accessibility support via the Accessibility ToolKit (ATK). Objects which are instances of Object (or instances of AtkObject-derived types) are queried for properties which relate basic (and generic) properties of a UI component such as name and description. Instances of Object may also be queried as to whether they implement other ATK interfaces (e.g. Action, Component, etc.), as appropriate to the role which a given UI component plays in a user interface.

All UI components in an application which provide useful information or services to the user must provide corresponding Object instances on request (in GTK+, for instance, usually on a call to gtk_widget_get_accessible ()), either via ATK support built into the toolkit for the widget class or ancestor class, or in the case of custom widgets, if the inherited Object implementation is insufficient, via instances of a new Object subclass.

See [classObjectFactory], [classRegistry]. (GTK+ users see also GtkAccessible).

Properties

accessible-component-layer

Readable

accessible-component-mdi-zorder

Readable

accessible-description

Readable | Writeable

accessible-hypertext-nlinks

Readable

accessible-name

Readable | Writeable

accessible-parent

Readable | Writeable

accessible-role

Readable | Writeable

accessible-table-caption

Table caption.

Readable | Writeable

accessible-table-caption-object

Readable | Writeable

accessible-table-column-description

Accessible table column description.

Readable | Writeable

accessible-table-column-header

Accessible table column header.

Readable | Writeable

accessible-table-row-description

Accessible table row description.

Readable | Writeable

accessible-table-row-header

Accessible table row header.

Readable | Writeable

accessible-table-summary

Readable | Writeable

accessible-value

Numeric value of this object, in case being and AtkValue.

Readable | Writeable

Signals

active-descendant-changed

The “active-descendant-changed” signal is emitted by an object which has the state ATK_STATE_MANAGES_DESCENDANTS when the focus object in the object changes. For instance, a table will emit the signal when the cell in the table which has focus changes.

Detailed

announcement

The “announcement” signal can be emitted to pass an announcement on to be read by a screen reader.

Depcrecated (2.50): Use AtkObject::notification instead.

children-changed

The signal “children-changed” is emitted when a child is added or removed form an object. It supports two details: “add” and “remove”

Detailed

focus-event

The signal “focus-event” is emitted when an object gained or lost focus.

notification

The “notification” signal can be emitted to pass an announcement on to be read by a screen reader.

property-change

The signal “property-change” is emitted when an object’s property value changes. arg1 contains an AtkPropertyValues with the name and the new value of the property whose value has changed. Note that, as with GObject notify, getting this signal does not guarantee that the value of the property has actually changed; it may also be emitted when the setter of the property is called to reinstate the previous value.

Toolkit implementor note: ATK implementors should use ObjectExt::notify() to emit property-changed notifications. property-changed is needed by the implementation of atk_add_global_event_listener() because GObject notify doesn’t support emission hooks.

Detailed

state-change

The “state-change” signal is emitted when an object’s state changes. The detail value identifies the state type which has changed.

Detailed

visible-data-changed

The “visible-data-changed” signal is emitted when the visual appearance of the object changed.

Implements

AtkObjectExt, glib::ObjectExt

Implementations

impl Object

pub const NONE: Option<&'static Object> = None

Trait Implementations

impl Clone for Object

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 Object

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

Formats the value using the given formatter.

impl Display for Object

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

Formats the value using the given formatter.

impl Eq for Object

impl HasParamSpec for Object

type ParamSpec = ParamSpecObject

type SetValue = Object

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(&str) -> ParamSpecObjectBuilder<'_, Object>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for Object

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 IsA<Object> for GObjectAccessible

impl IsA<Object> for NoOpObject

impl IsA<Object> for Plug

impl IsA<Object> for Socket

impl IsA<Object> for TableCell

impl IsA<Object> for Window

impl Ord for Object

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

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl ParentClassIs for Object

type Parent = Object

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

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

Equality operator ==.

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

Inequality operator !=.

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl StaticType for Object

fn static_type() -> Type

Returns the type identifier of Self.