Struct gtk4::Accessible
source · #[repr(transparent)]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
AccessibleRoleenumeration - an “attribute”, represented by a set of
AccessibleState,AccessiblePropertyandAccessibleRelationvalues
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 Display for Accessible
impl Display for Accessible
source§impl HasParamSpec for Accessible
impl HasParamSpec for Accessible
type ParamSpec = ParamSpecObject
§type SetValue = Accessible
type SetValue = Accessible
Preferred value to be used as setter for the associated ParamSpec.
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
Available on crate feature
v4_10 only.source§fn interface_init(iface: &mut Interface<Self>)
fn interface_init(iface: &mut Interface<Self>)
Override the virtual methods of this interface for the given subclass and do other
interface initialization. Read more
source§fn instance_init(_instance: &mut InitializingObject<T>)
fn instance_init(_instance: &mut InitializingObject<T>)
Instance specific initialization. Read more
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
This method tests less than or equal to (for
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
Returns the type identifier of
Self.impl Eq for Accessible
impl IsA<Accessible> for AboutDialog
impl IsA<Accessible> for AccessibleRange
Available on crate feature
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
Available on crate feature
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
Available on crate feature
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
Available on crate feature
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
Available on Linux only.
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
Available on Linux only.
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> 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<'_>])
Updates an array of accessible properties. Read more
source§fn update_relation(&self, relations: &[Relation<'_>])
fn update_relation(&self, relations: &[Relation<'_>])
Updates an array of accessible relations. Read more
source§fn update_state(&self, states: &[State])
fn update_state(&self, states: &[State])
Updates an array of accessible states. Read more
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impl<T> Cast for Twhere T: ObjectType,
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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>
Same as
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,
Emit signal by its name. Read more
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>
Emit signal by its name. Read more
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,
Emit signal by its name with details. Read more
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>
Emit signal by its name with details. Read more
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,
Emit signal by signal id with details. Read more
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>
Emit signal by signal id with details. Read more
source§fn disconnect(&self, handler_id: SignalHandlerId)
fn disconnect(&self, handler_id: SignalHandlerId)
Disconnect a previously connected signal handler.
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,
Connect to the
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,
Connect to the
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),
Connect to the
notify signal of the object. Read moresource§fn notify(&self, property_name: &str)
fn notify(&self, property_name: &str)
Notify that the given property has changed its value. Read more
source§fn notify_by_pspec(&self, pspec: &ParamSpec)
fn notify_by_pspec(&self, pspec: &ParamSpec)
Notify that the given property has changed its value. Read more
source§fn add_weak_ref_notify<F>(&self, f: F) -> WeakRefNotify<T>where
F: FnOnce() + Send + 'static,
fn add_weak_ref_notify<F>(&self, f: F) -> WeakRefNotify<T>where F: FnOnce() + Send + 'static,
Add a callback to be notified when the Object is disposed.
source§fn add_weak_ref_notify_local<F>(&self, f: F) -> WeakRefNotify<T>where
F: FnOnce() + 'static,
fn add_weak_ref_notify_local<F>(&self, f: F) -> WeakRefNotify<T>where F: FnOnce() + 'static,
Add a callback to be notified when the Object is disposed. Read more
source§fn bind_property<'f, 't, O, 'a>(
&'a self,
source_property: &'a str,
target: &'a O,
target_property: &'a str
) -> BindingBuilder<'a, 'f, 't>where
O: ObjectType,
fn bind_property<'f, 't, O, 'a>( &'a self, source_property: &'a str, target: &'a O, target_property: &'a str ) -> BindingBuilder<'a, 'f, 't>where O: ObjectType,
source§unsafe fn run_dispose(&self)
unsafe fn run_dispose(&self)
Runs the dispose mechanism of the object. Read more
source§impl<T> PropertyGet for Twhere
T: HasParamSpec,
impl<T> PropertyGet for Twhere T: HasParamSpec,
source§impl<T> StaticTypeExt for Twhere
T: StaticType,
impl<T> StaticTypeExt for Twhere T: StaticType,
source§fn ensure_type()
fn ensure_type()
Ensures that the type has been registered with the type system.