Enum bevy::a11y::accesskit::Role

#[repr(u8)]
pub enum Role {
    Unknown = 0,
    InlineTextBox = 1,
    Cell = 2,
    StaticText = 3,
    Image = 4,
    Link = 5,
    Row = 6,
    ListItem = 7,
    ListMarker = 8,
    TreeItem = 9,
    ListBoxOption = 10,
    MenuItem = 11,
    MenuListOption = 12,
    Paragraph = 13,
    GenericContainer = 14,
    CheckBox = 15,
    RadioButton = 16,
    TextInput = 17,
    Button = 18,
    DefaultButton = 19,
    Pane = 20,
    RowHeader = 21,
    ColumnHeader = 22,
    Column = 23,
    RowGroup = 24,
    List = 25,
    Table = 26,
    TableHeaderContainer = 27,
    LayoutTableCell = 28,
    LayoutTableRow = 29,
    LayoutTable = 30,
    Switch = 31,
    ToggleButton = 32,
    Menu = 33,
    MultilineTextInput = 34,
    SearchInput = 35,
    DateInput = 36,
    DateTimeInput = 37,
    WeekInput = 38,
    MonthInput = 39,
    TimeInput = 40,
    EmailInput = 41,
    NumberInput = 42,
    PasswordInput = 43,
    PhoneNumberInput = 44,
    UrlInput = 45,
    Abbr = 46,
    Alert = 47,
    AlertDialog = 48,
    Application = 49,
    Article = 50,
    Audio = 51,
    Banner = 52,
    Blockquote = 53,
    Canvas = 54,
    Caption = 55,
    Caret = 56,
    Code = 57,
    ColorWell = 58,
    ComboBox = 59,
    EditableComboBox = 60,
    Complementary = 61,
    Comment = 62,
    ContentDeletion = 63,
    ContentInsertion = 64,
    ContentInfo = 65,
    Definition = 66,
    DescriptionList = 67,
    DescriptionListDetail = 68,
    DescriptionListTerm = 69,
    Details = 70,
    Dialog = 71,
    Directory = 72,
    DisclosureTriangle = 73,
    Document = 74,
    EmbeddedObject = 75,
    Emphasis = 76,
    Feed = 77,
    FigureCaption = 78,
    Figure = 79,
    Footer = 80,
    FooterAsNonLandmark = 81,
    Form = 82,
    Grid = 83,
    Group = 84,
    Header = 85,
    HeaderAsNonLandmark = 86,
    Heading = 87,
    Iframe = 88,
    IframePresentational = 89,
    ImeCandidate = 90,
    Keyboard = 91,
    Legend = 92,
    LineBreak = 93,
    ListBox = 94,
    Log = 95,
    Main = 96,
    Mark = 97,
    Marquee = 98,
    Math = 99,
    MenuBar = 100,
    MenuItemCheckBox = 101,
    MenuItemRadio = 102,
    MenuListPopup = 103,
    Meter = 104,
    Navigation = 105,
    Note = 106,
    PluginObject = 107,
    Portal = 108,
    Pre = 109,
    ProgressIndicator = 110,
    RadioGroup = 111,
    Region = 112,
    RootWebArea = 113,
    Ruby = 114,
    RubyAnnotation = 115,
    ScrollBar = 116,
    ScrollView = 117,
    Search = 118,
    Section = 119,
    Slider = 120,
    SpinButton = 121,
    Splitter = 122,
    Status = 123,
    Strong = 124,
    Suggestion = 125,
    SvgRoot = 126,
    Tab = 127,
    TabList = 128,
    TabPanel = 129,
    Term = 130,
    Time = 131,
    Timer = 132,
    TitleBar = 133,
    Toolbar = 134,
    Tooltip = 135,
    Tree = 136,
    TreeGrid = 137,
    Video = 138,
    WebView = 139,
    Window = 140,
    PdfActionableHighlight = 141,
    PdfRoot = 142,
    GraphicsDocument = 143,
    GraphicsObject = 144,
    GraphicsSymbol = 145,
    DocAbstract = 146,
    DocAcknowledgements = 147,
    DocAfterword = 148,
    DocAppendix = 149,
    DocBackLink = 150,
    DocBiblioEntry = 151,
    DocBibliography = 152,
    DocBiblioRef = 153,
    DocChapter = 154,
    DocColophon = 155,
    DocConclusion = 156,
    DocCover = 157,
    DocCredit = 158,
    DocCredits = 159,
    DocDedication = 160,
    DocEndnote = 161,
    DocEndnotes = 162,
    DocEpigraph = 163,
    DocEpilogue = 164,
    DocErrata = 165,
    DocExample = 166,
    DocFootnote = 167,
    DocForeword = 168,
    DocGlossary = 169,
    DocGlossRef = 170,
    DocIndex = 171,
    DocIntroduction = 172,
    DocNoteRef = 173,
    DocNotice = 174,
    DocPageBreak = 175,
    DocPageFooter = 176,
    DocPageHeader = 177,
    DocPageList = 178,
    DocPart = 179,
    DocPreface = 180,
    DocPrologue = 181,
    DocPullquote = 182,
    DocQna = 183,
    DocSubtitle = 184,
    DocTip = 185,
    DocToc = 186,
    ListGrid = 187,
    Terminal = 188,
}

The type of an accessibility node.

The majority of these roles come from the ARIA specification. Reference the latest draft for proper usage.

Like the AccessKit schema as a whole, this list is largely taken from Chromium. However, unlike Chromium’s alphabetized list, this list is ordered roughly by expected usage frequency (with the notable exception of Role::Unknown). This is more efficient in serialization formats where integers use a variable-length encoding.

Variants

Unknown = 0

InlineTextBox = 1

Cell = 2

StaticText = 3

Image = 4

Link = 5

Row = 6

ListItem = 7

ListMarker = 8

Contains the bullet, number, or other marker for a list item.

TreeItem = 9

ListBoxOption = 10

MenuItem = 11

MenuListOption = 12

Paragraph = 13

GenericContainer = 14

A generic container that should be ignored by assistive technologies and filtered out of platform accessibility trees. Equivalent to the ARIA none or presentation role, or to an HTML div with no role.

CheckBox = 15

RadioButton = 16

TextInput = 17

Button = 18

DefaultButton = 19

Pane = 20

RowHeader = 21

ColumnHeader = 22

Column = 23

RowGroup = 24

List = 25

Table = 26

TableHeaderContainer = 27

LayoutTableCell = 28

LayoutTableRow = 29

LayoutTable = 30

Switch = 31

ToggleButton = 32

Menu = 33

MultilineTextInput = 34

SearchInput = 35

DateInput = 36

DateTimeInput = 37

WeekInput = 38

MonthInput = 39

TimeInput = 40

EmailInput = 41

NumberInput = 42

PasswordInput = 43

PhoneNumberInput = 44

UrlInput = 45

Abbr = 46

Alert = 47

AlertDialog = 48

Application = 49

Article = 50

Audio = 51

Banner = 52

Blockquote = 53

Canvas = 54

Caption = 55

Caret = 56

Code = 57

ColorWell = 58

ComboBox = 59

EditableComboBox = 60

Complementary = 61

Comment = 62

ContentDeletion = 63

ContentInsertion = 64

ContentInfo = 65

Definition = 66

DescriptionList = 67

DescriptionListDetail = 68

DescriptionListTerm = 69

Details = 70

Dialog = 71

Directory = 72

DisclosureTriangle = 73

Document = 74

EmbeddedObject = 75

Emphasis = 76

Feed = 77

FigureCaption = 78

Figure = 79

Footer = 80

FooterAsNonLandmark = 81

Form = 82

Grid = 83

Group = 84

Header = 85

HeaderAsNonLandmark = 86

Heading = 87

Iframe = 88

IframePresentational = 89

ImeCandidate = 90

Keyboard = 91

Legend = 92

LineBreak = 93

ListBox = 94

Log = 95

Main = 96

Mark = 97

Marquee = 98

Math = 99

MenuBar = 100

MenuItemCheckBox = 101

MenuItemRadio = 102

MenuListPopup = 103

Meter = 104

Navigation = 105

Note = 106

PluginObject = 107

Portal = 108

Pre = 109

ProgressIndicator = 110

RadioGroup = 111

Region = 112

RootWebArea = 113

Ruby = 114

RubyAnnotation = 115

ScrollBar = 116

ScrollView = 117

Search = 118

Section = 119

Slider = 120

SpinButton = 121

Splitter = 122

Status = 123

Strong = 124

Suggestion = 125

SvgRoot = 126

Tab = 127

TabList = 128

TabPanel = 129

Term = 130

Time = 131

Timer = 132

TitleBar = 133

Toolbar = 134

Tooltip = 135

Tree = 136

TreeGrid = 137

Video = 138

WebView = 139

Window = 140

PdfActionableHighlight = 141

PdfRoot = 142

GraphicsDocument = 143

GraphicsObject = 144

GraphicsSymbol = 145

DocAbstract = 146

DocAcknowledgements = 147

DocAfterword = 148

DocAppendix = 149

DocBackLink = 150

DocBiblioEntry = 151

DocBibliography = 152

DocBiblioRef = 153

DocChapter = 154

DocColophon = 155

DocConclusion = 156

DocCover = 157

DocCredit = 158

DocCredits = 159

DocDedication = 160

DocEndnote = 161

DocEndnotes = 162

DocEpigraph = 163

DocEpilogue = 164

DocErrata = 165

DocExample = 166

DocFootnote = 167

DocForeword = 168

DocGlossary = 169

DocGlossRef = 170

DocIndex = 171

DocIntroduction = 172

DocNoteRef = 173

DocNotice = 174

DocPageBreak = 175

DocPageFooter = 176

DocPageHeader = 177

DocPageList = 178

DocPart = 179

DocPreface = 180

DocPrologue = 181

DocPullquote = 182

DocQna = 183

DocSubtitle = 184

DocTip = 185

DocToc = 186

ListGrid = 187

Behaves similar to an ARIA grid but is primarily used by Chromium’s TableView and its subclasses, so they can be exposed correctly on certain platforms.

Terminal = 188

This is just like a multi-line document, but signals that assistive technologies should implement behavior specific to a VT-100-style terminal.

Trait Implementations

impl Clone for Role

fn clone(&self) -> Role

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Role

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

Formats the value using the given formatter.

impl Default for Role

fn default() -> Role

Returns the “default value” for a type.

impl Hash for Role

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 Ord for Role

fn cmp(&self, other: &Role) -> 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 + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for Role

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Role

fn partial_cmp(&self, other: &Role) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl Copy for Role

impl Eq for Role

impl StructuralEq for Role

impl StructuralPartialEq for Role