Enum Role 

#[non_exhaustive]
pub enum Role {
    Window,
    Group,
    Button,
    Label,
    TextInput,
    MultilineTextInput,
    ScrollView,
    List,
    ListItem,
}

The kind of control a projected node represents.

The set covers the widgets this release projects. A widget without a role here is left out of the projection, and its children attach to the nearest projected ancestor.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Window

The window the tree fills. The backend adds this as the root.

Group

A plain container that groups its children.

Button

A control a press activates.

Label

Static text.

TextInput

A single-line editable text field.

MultilineTextInput

A multi-line editable text field.

ScrollView

A viewport that clips and scrolls its content.

List

A container whose children are list items.

ListItem

One entry of a list.

Trait Implementations

impl Clone for Role

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Role

impl Debug for Role

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

Formats the value using the given formatter.

impl Eq for Role

impl PartialEq for Role

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Role