Trait gtk4::prelude::AccessibleExt

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pub trait AccessibleExt: 'static {
Show 14 methods    // Required methods
    fn accessible_parent(&self) -> Option<Accessible>;
    fn accessible_role(&self) -> AccessibleRole;
    fn at_context(&self) -> ATContext;
    fn bounds(&self) -> Option<(i32, i32, i32, i32)>;
    fn first_accessible_child(&self) -> Option<Accessible>;
    fn next_accessible_sibling(&self) -> Option<Accessible>;
    fn platform_state(&self, state: AccessiblePlatformState) -> bool;
    fn reset_property(&self, property: AccessibleProperty);
    fn reset_relation(&self, relation: AccessibleRelation);
    fn reset_state(&self, state: AccessibleState);
    fn set_accessible_parent(
        &self,
        parent: Option<&impl IsA<Accessible>>,
        next_sibling: Option<&impl IsA<Accessible>>
    );
    fn update_next_accessible_sibling(
        &self,
        new_sibling: Option<&impl IsA<Accessible>>
    );
    fn set_accessible_role(&self, accessible_role: AccessibleRole);
    fn connect_accessible_role_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
}

Expand description

Trait containing all Accessible methods.

Implementors

AboutDialog, AccessibleRange, Accessible, ActionBar, AppChooserButton, AppChooserDialog, AppChooserWidget, ApplicationWindow, AspectFrame, Assistant, Box, Button, Calendar, CellView, CenterBox, CheckButton, ColorButton, ColorChooserDialog, ColorChooserWidget, ColorDialogButton, ColumnView, ComboBoxText, ComboBox, Dialog, DragIcon, DrawingArea, DropDown, EditableLabel, EmojiChooser, Entry, Expander, FileChooserDialog, FileChooserWidget, Fixed, FlowBoxChild, FlowBox, FontButton, FontChooserDialog, FontChooserWidget, FontDialogButton, Frame, GLArea, GridView, Grid, HeaderBar, IconView, Image, InfoBar, Inscription, Label, LevelBar, LinkButton, ListBase, ListBoxRow, ListBox, ListView, LockButton, MediaControls, MenuButton, MessageDialog, Notebook, Overlay, PageSetupUnixDialog, Paned, PasswordEntry, Picture, PopoverMenuBar, PopoverMenu, Popover, PrintUnixDialog, ProgressBar, Range, Revealer, ScaleButton, Scale, Scrollbar, ScrolledWindow, SearchBar, SearchEntry, Separator, ShortcutLabel, ShortcutsGroup, ShortcutsSection, ShortcutsShortcut, ShortcutsWindow, SpinButton, Spinner, StackPage, StackSidebar, StackSwitcher, Stack, Statusbar, Switch, TextView, Text, ToggleButton, TreeExpander, TreeView, Video, Viewport, VolumeButton, Widget, WindowControls, WindowHandle, Window

Required Methods§

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fn accessible_parent(&self) -> Option<Accessible>

Available on crate feature v4_10 only.

Retrieves the accessible parent for an accessible object.

This function returns NULL for top level widgets.

fn accessible_role(&self) -> AccessibleRole

Retrieves the accessible role of an accessible object.

fn at_context(&self) -> ATContext

Available on crate feature v4_10 only.

Retrieves the accessible implementation for the given Accessible.

Returns

the accessible implementation object

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fn bounds(&self) -> Option<(i32, i32, i32, i32)>

Available on crate feature v4_10 only.

Queries the coordinates and dimensions of this accessible

This functionality can be overridden by Accessible implementations, e.g. to get the bounds from an ignored child widget.

Returns

true if the bounds are valid, and false otherwise

`x`

the x coordinate of the top left corner of the accessible

`y`

the y coordinate of the top left corner of the widget

`height`

the height of the accessible object

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fn first_accessible_child(&self) -> Option<Accessible>

Available on crate feature v4_10 only.

Retrieves the first accessible child of an accessible object.

fn next_accessible_sibling(&self) -> Option<Accessible>

Available on crate feature v4_10 only.

Retrieves the next accessible sibling of an accessible object

fn platform_state(&self, state: AccessiblePlatformState) -> bool

Available on crate feature v4_10 only.

Query a platform state, such as focus.

See gtk_accessible_platform_changed().

This functionality can be overridden by Accessible implementations, e.g. to get platform state from an ignored child widget, as is the case for Text wrappers.

Returns

the value of @state for the accessible

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fn reset_property(&self, property: AccessibleProperty)

Resets the accessible @property to its default value.

fn reset_relation(&self, relation: AccessibleRelation)

Resets the accessible @relation to its default value.

fn reset_state(&self, state: AccessibleState)

Resets the accessible @state to its default value.

fn set_accessible_parent( &self, parent: Option<&impl IsA<Accessible>>, next_sibling: Option<&impl IsA<Accessible>> )

Available on crate feature v4_10 only.

Sets the parent and sibling of an accessible object.

This function is meant to be used by accessible implementations that are not part of the widget hierarchy, and but act as a logical bridge between widgets. For instance, if a widget creates an object that holds metadata for each child, and you want that object to implement the Accessible interface, you will use this function to ensure that the parent of each child widget is the metadata object, and the parent of each metadata object is the container widget.