Struct gtk4::Accessible
source · pub struct Accessible { /* private fields */ }
Expand description
Accessible
is an interface for describing UI elements for
Assistive Technologies.
Every accessible implementation has:
- a “role”, represented by a value of the
AccessibleRole
enumeration - an “attribute”, represented by a set of
AccessibleState
,AccessibleProperty
andAccessibleRelation
values
The role cannot be changed after instantiating a Accessible
implementation.
The attributes are updated every time a UI element’s state changes in
a way that should be reflected by assistive technologies. For instance,
if a Widget
visibility changes, the AccessibleState::Hidden
state will also change to reflect the visible
property.
Every accessible implementation is part of a tree of accessible objects.
Normally, this tree corresponds to the widget tree, but can be customized
by reimplementing the vfunc::Gtk::Accessible::get_accessible_parent
,
vfunc::Gtk::Accessible::get_first_accessible_child
and
vfunc::Gtk::Accessible::get_next_accessible_sibling
virtual functions.
Note that you can not create a top-level accessible object as of now,
which means that you must always have a parent accessible object.
Also note that when an accessible object does not correspond to a widget,
and it has children, whose implementation you don’t control,
it is necessary to ensure the correct shape of the a11y tree
by calling AccessibleExt::set_accessible_parent()
and
updating the sibling by AccessibleExt::update_next_accessible_sibling()
.
Properties
accessible-role
The accessible role of the given Accessible
implementation.
The accessible role cannot be changed once set.
Readable | Writeable
Implements
Implementations§
source§impl Accessible
impl Accessible
pub const NONE: Option<&'static Accessible> = None
Trait Implementations§
source§impl Clone for Accessible
impl Clone for Accessible
source§impl Debug for Accessible
impl Debug for Accessible
source§impl HasParamSpec for Accessible
impl HasParamSpec for Accessible
type ParamSpec = ParamSpecObject
§type SetValue = Accessible
type SetValue = Accessible
type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, Accessible>
fn param_spec_builder() -> Self::BuilderFn
source§impl Hash for Accessible
impl Hash for Accessible
source§impl<T: AccessibleImpl> IsImplementable<T> for Accessible
Available on crate feature v4_10
only.
impl<T: AccessibleImpl> IsImplementable<T> for Accessible
v4_10
only.source§fn interface_init(iface: &mut Interface<Self>)
fn interface_init(iface: &mut Interface<Self>)
source§fn instance_init(_instance: &mut InitializingObject<T>)
fn instance_init(_instance: &mut InitializingObject<T>)
source§impl Ord for Accessible
impl Ord for Accessible
source§impl<OT: ObjectType> PartialEq<OT> for Accessible
impl<OT: ObjectType> PartialEq<OT> for Accessible
source§impl<OT: ObjectType> PartialOrd<OT> for Accessible
impl<OT: ObjectType> PartialOrd<OT> for Accessible
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moresource§impl StaticType for Accessible
impl StaticType for Accessible
source§fn static_type() -> Type
fn static_type() -> Type
Self
.impl Eq for Accessible
impl IsA<Accessible> for AboutDialog
impl IsA<Accessible> for AccessibleRange
v4_10
only.impl IsA<Accessible> for ActionBar
impl IsA<Accessible> for Actionable
impl IsA<Accessible> for AppChooser
impl IsA<Accessible> for AppChooserButton
impl IsA<Accessible> for AppChooserDialog
impl IsA<Accessible> for AppChooserWidget
impl IsA<Accessible> for ApplicationWindow
impl IsA<Accessible> for AspectFrame
impl IsA<Accessible> for Assistant
impl IsA<Accessible> for Box
impl IsA<Accessible> for Button
impl IsA<Accessible> for Calendar
impl IsA<Accessible> for CellEditable
impl IsA<Accessible> for CellView
impl IsA<Accessible> for CenterBox
impl IsA<Accessible> for CheckButton
impl IsA<Accessible> for ColorButton
impl IsA<Accessible> for ColorChooserDialog
impl IsA<Accessible> for ColorChooserWidget
impl IsA<Accessible> for ColorDialogButton
v4_10
only.impl IsA<Accessible> for ColumnView
impl IsA<Accessible> for ComboBox
impl IsA<Accessible> for ComboBoxText
impl IsA<Accessible> for Dialog
impl IsA<Accessible> for DragIcon
impl IsA<Accessible> for DrawingArea
impl IsA<Accessible> for DropDown
impl IsA<Accessible> for Editable
impl IsA<Accessible> for EditableLabel
impl IsA<Accessible> for EmojiChooser
impl IsA<Accessible> for Entry
impl IsA<Accessible> for Expander
impl IsA<Accessible> for FileChooserDialog
impl IsA<Accessible> for FileChooserWidget
impl IsA<Accessible> for Fixed
impl IsA<Accessible> for FlowBox
impl IsA<Accessible> for FlowBoxChild
impl IsA<Accessible> for FontButton
impl IsA<Accessible> for FontChooserDialog
impl IsA<Accessible> for FontChooserWidget
impl IsA<Accessible> for FontDialogButton
v4_10
only.impl IsA<Accessible> for Frame
impl IsA<Accessible> for GLArea
impl IsA<Accessible> for Grid
impl IsA<Accessible> for GridView
impl IsA<Accessible> for HeaderBar
impl IsA<Accessible> for IconView
impl IsA<Accessible> for Image
impl IsA<Accessible> for InfoBar
impl IsA<Accessible> for Inscription
v4_8
only.impl IsA<Accessible> for Label
impl IsA<Accessible> for LevelBar
impl IsA<Accessible> for LinkButton
impl IsA<Accessible> for ListBase
impl IsA<Accessible> for ListBox
impl IsA<Accessible> for ListBoxRow
impl IsA<Accessible> for ListView
impl IsA<Accessible> for LockButton
impl IsA<Accessible> for MediaControls
impl IsA<Accessible> for MenuButton
impl IsA<Accessible> for MessageDialog
impl IsA<Accessible> for Native
impl IsA<Accessible> for Notebook
impl IsA<Accessible> for Overlay
impl IsA<Accessible> for PageSetupUnixDialog
impl IsA<Accessible> for Paned
impl IsA<Accessible> for PasswordEntry
impl IsA<Accessible> for Picture
impl IsA<Accessible> for Popover
impl IsA<Accessible> for PopoverMenu
impl IsA<Accessible> for PopoverMenuBar
impl IsA<Accessible> for PrintUnixDialog
impl IsA<Accessible> for ProgressBar
impl IsA<Accessible> for Range
impl IsA<Accessible> for Revealer
impl IsA<Accessible> for Root
impl IsA<Accessible> for Scale
impl IsA<Accessible> for ScaleButton
impl IsA<Accessible> for Scrollbar
impl IsA<Accessible> for ScrolledWindow
impl IsA<Accessible> for SearchBar
impl IsA<Accessible> for SearchEntry
impl IsA<Accessible> for Separator
impl IsA<Accessible> for ShortcutLabel
impl IsA<Accessible> for ShortcutsGroup
impl IsA<Accessible> for ShortcutsSection
impl IsA<Accessible> for ShortcutsShortcut
impl IsA<Accessible> for ShortcutsWindow
impl IsA<Accessible> for SpinButton
impl IsA<Accessible> for Spinner
impl IsA<Accessible> for Stack
impl IsA<Accessible> for StackPage
impl IsA<Accessible> for StackSidebar
impl IsA<Accessible> for StackSwitcher
impl IsA<Accessible> for Statusbar
impl IsA<Accessible> for Switch
impl IsA<Accessible> for Text
impl IsA<Accessible> for TextView
impl IsA<Accessible> for ToggleButton
impl IsA<Accessible> for TreeExpander
impl IsA<Accessible> for TreeView
impl IsA<Accessible> for Video
impl IsA<Accessible> for Viewport
impl IsA<Accessible> for VolumeButton
impl IsA<Accessible> for Widget
impl IsA<Accessible> for Window
impl IsA<Accessible> for WindowControls
impl IsA<Accessible> for WindowHandle
Auto Trait Implementations§
impl RefUnwindSafe for Accessible
impl !Send for Accessible
impl !Sync for Accessible
impl Unpin for Accessible
impl UnwindSafe for Accessible
Blanket Implementations§
source§impl<O> AccessibleExt for Owhere
O: IsA<Accessible>,
impl<O> AccessibleExt for Owhere O: IsA<Accessible>,
source§fn accessible_parent(&self) -> Option<Accessible>
fn accessible_parent(&self) -> Option<Accessible>
v4_10
only.source§fn accessible_role(&self) -> AccessibleRole
fn accessible_role(&self) -> AccessibleRole
source§fn at_context(&self) -> ATContext
fn at_context(&self) -> ATContext
v4_10
only.Accessible
. Read moresource§fn bounds(&self) -> Option<(i32, i32, i32, i32)>
fn bounds(&self) -> Option<(i32, i32, i32, i32)>
v4_10
only.source§fn first_accessible_child(&self) -> Option<Accessible>
fn first_accessible_child(&self) -> Option<Accessible>
v4_10
only.source§fn next_accessible_sibling(&self) -> Option<Accessible>
fn next_accessible_sibling(&self) -> Option<Accessible>
v4_10
only.source§fn platform_state(&self, state: AccessiblePlatformState) -> bool
fn platform_state(&self, state: AccessiblePlatformState) -> bool
v4_10
only.source§fn reset_property(&self, property: AccessibleProperty)
fn reset_property(&self, property: AccessibleProperty)
source§fn reset_relation(&self, relation: AccessibleRelation)
fn reset_relation(&self, relation: AccessibleRelation)
source§fn reset_state(&self, state: AccessibleState)
fn reset_state(&self, state: AccessibleState)
source§fn set_accessible_parent(
&self,
parent: Option<&impl IsA<Accessible>>,
next_sibling: Option<&impl IsA<Accessible>>
)
fn set_accessible_parent( &self, parent: Option<&impl IsA<Accessible>>, next_sibling: Option<&impl IsA<Accessible>> )
v4_10
only.source§fn update_next_accessible_sibling(
&self,
new_sibling: Option<&impl IsA<Accessible>>
)
fn update_next_accessible_sibling( &self, new_sibling: Option<&impl IsA<Accessible>> )
v4_10
only.source§fn set_accessible_role(&self, accessible_role: AccessibleRole)
fn set_accessible_role(&self, accessible_role: AccessibleRole)
Accessible
implementation. Read morefn connect_accessible_role_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
source§impl<O> AccessibleExtManual for Owhere
O: IsA<Accessible>,
impl<O> AccessibleExtManual for Owhere O: IsA<Accessible>,
source§fn update_property(&self, properties: &[Property<'_>])
fn update_property(&self, properties: &[Property<'_>])
source§fn update_relation(&self, relations: &[Relation<'_>])
fn update_relation(&self, relations: &[Relation<'_>])
source§fn update_state(&self, states: &[State])
fn update_state(&self, states: &[State])
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
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T: ObjectType,
impl<T> Cast for Twhere T: ObjectType,
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unsafe fn from_glib_none_as_vec(ptr: *const GSList) -> Vec<T>
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after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
fn connect_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
signal_id
on this object. Read moresource§fn connect_local<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + 'static,
fn connect_local<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + 'static,
signal_name
on this object. Read moresource§fn connect_local_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + 'static,
fn connect_local_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + 'static,
signal_id
on this object. Read moresource§unsafe fn connect_unsafe<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value>,
unsafe fn connect_unsafe<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value>,
signal_name
on this object. Read moresource§unsafe fn connect_unsafe_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value>,
unsafe fn connect_unsafe_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value>,
signal_id
on this object. Read moresource§fn connect_closure(
&self,
signal_name: &str,
after: bool,
closure: RustClosure
) -> SignalHandlerId
fn connect_closure( &self, signal_name: &str, after: bool, closure: RustClosure ) -> SignalHandlerId
signal_name
on this object. Read moresource§fn connect_closure_id(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
closure: RustClosure
) -> SignalHandlerId
fn connect_closure_id( &self, signal_id: SignalId, details: Option<Quark>, after: bool, closure: RustClosure ) -> SignalHandlerId
signal_id
on this object. Read moresource§fn watch_closure(&self, closure: &impl AsRef<Closure>)
fn watch_closure(&self, closure: &impl AsRef<Closure>)
closure
to the lifetime of the object. When
the object’s reference count drops to zero, the closure will be
invalidated. An invalidated closure will ignore any calls to
invoke_with_values
, or
invoke
when using Rust closures.source§fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> Rwhere
R: TryFromClosureReturnValue,
fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> Rwhere R: TryFromClosureReturnValue,
source§fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>
fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>
Self::emit
but takes Value
for the arguments.source§fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> Rwhere
R: TryFromClosureReturnValue,
fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> Rwhere R: TryFromClosureReturnValue,
source§fn emit_by_name_with_values(
&self,
signal_name: &str,
args: &[Value]
) -> Option<Value>
fn emit_by_name_with_values( &self, signal_name: &str, args: &[Value] ) -> Option<Value>
source§fn emit_by_name_with_details<R>(
&self,
signal_name: &str,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
fn emit_by_name_with_details<R>( &self, signal_name: &str, details: Quark, args: &[&dyn ToValue] ) -> Rwhere R: TryFromClosureReturnValue,
source§fn emit_by_name_with_details_and_values(
&self,
signal_name: &str,
details: Quark,
args: &[Value]
) -> Option<Value>
fn emit_by_name_with_details_and_values( &self, signal_name: &str, details: Quark, args: &[Value] ) -> Option<Value>
source§fn emit_with_details<R>(
&self,
signal_id: SignalId,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
fn emit_with_details<R>( &self, signal_id: SignalId, details: Quark, args: &[&dyn ToValue] ) -> Rwhere R: TryFromClosureReturnValue,
source§fn emit_with_details_and_values(
&self,
signal_id: SignalId,
details: Quark,
args: &[Value]
) -> Option<Value>
fn emit_with_details_and_values( &self, signal_id: SignalId, details: Quark, args: &[Value] ) -> Option<Value>
source§fn disconnect(&self, handler_id: SignalHandlerId)
fn disconnect(&self, handler_id: SignalHandlerId)
source§fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec) + Send + Sync + 'static,
fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec) + Send + Sync + 'static,
notify
signal of the object. Read moresource§fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec) + 'static,
fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec) + 'static,
notify
signal of the object. Read moresource§unsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec),
unsafe fn connect_notify_unsafe<F>( &self, name: Option<&str>, f: F ) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec),
notify
signal of the object. Read more