Enum bevy::a11y::accesskit::Role

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#[repr(u8)]
pub enum Role {
Show 189 variants 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,
}
Expand description

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§

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Unknown = 0

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InlineTextBox = 1

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Cell = 2

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StaticText = 3

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Image = 4

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Row = 6

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ListItem = 7

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ListMarker = 8

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

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TreeItem = 9

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ListBoxOption = 10

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MenuItem = 11

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MenuListOption = 12

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Paragraph = 13

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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.

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CheckBox = 15

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RadioButton = 16

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TextInput = 17

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Button = 18

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DefaultButton = 19

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Pane = 20

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RowHeader = 21

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ColumnHeader = 22

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Column = 23

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RowGroup = 24

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List = 25

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Table = 26

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TableHeaderContainer = 27

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LayoutTableCell = 28

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LayoutTableRow = 29

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LayoutTable = 30

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Switch = 31

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ToggleButton = 32

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Menu = 33

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MultilineTextInput = 34

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SearchInput = 35

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DateInput = 36

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DateTimeInput = 37

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WeekInput = 38

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MonthInput = 39

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TimeInput = 40

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EmailInput = 41

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NumberInput = 42

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PasswordInput = 43

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PhoneNumberInput = 44

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UrlInput = 45

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Abbr = 46

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Alert = 47

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AlertDialog = 48

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Application = 49

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Article = 50

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Audio = 51

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Banner = 52

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Blockquote = 53

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Canvas = 54

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Caption = 55

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Caret = 56

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Code = 57

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ColorWell = 58

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ComboBox = 59

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EditableComboBox = 60

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Complementary = 61

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Comment = 62

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ContentDeletion = 63

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ContentInsertion = 64

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ContentInfo = 65

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Definition = 66

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DescriptionList = 67

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DescriptionListDetail = 68

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DescriptionListTerm = 69

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Details = 70

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Dialog = 71

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Directory = 72

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DisclosureTriangle = 73

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Document = 74

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EmbeddedObject = 75

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Emphasis = 76

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Feed = 77

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FigureCaption = 78

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Figure = 79

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Footer = 80

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FooterAsNonLandmark = 81

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Form = 82

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Grid = 83

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Group = 84

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Header = 85

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HeaderAsNonLandmark = 86

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Heading = 87

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Iframe = 88

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IframePresentational = 89

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ImeCandidate = 90

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Keyboard = 91

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Legend = 92

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LineBreak = 93

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ListBox = 94

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Log = 95

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Main = 96

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Mark = 97

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Marquee = 98

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Math = 99

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MenuBar = 100

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MenuItemCheckBox = 101

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MenuItemRadio = 102

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MenuListPopup = 103

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Meter = 104

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Navigation = 105

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Note = 106

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PluginObject = 107

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Portal = 108

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Pre = 109

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ProgressIndicator = 110

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RadioGroup = 111

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Region = 112

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RootWebArea = 113

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Ruby = 114

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RubyAnnotation = 115

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ScrollBar = 116

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ScrollView = 117

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Search = 118

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Section = 119

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Slider = 120

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SpinButton = 121

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Splitter = 122

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Status = 123

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Strong = 124

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Suggestion = 125

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SvgRoot = 126

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Tab = 127

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TabList = 128

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TabPanel = 129

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Term = 130

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Time = 131

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Timer = 132

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TitleBar = 133

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Toolbar = 134

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Tooltip = 135

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Tree = 136

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TreeGrid = 137

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Video = 138

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WebView = 139

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Window = 140

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PdfActionableHighlight = 141

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PdfRoot = 142

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GraphicsDocument = 143

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GraphicsObject = 144

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GraphicsSymbol = 145

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DocAbstract = 146

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DocAcknowledgements = 147

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DocAfterword = 148

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DocAppendix = 149

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DocBiblioEntry = 151

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DocBibliography = 152

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DocBiblioRef = 153

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DocChapter = 154

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DocColophon = 155

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DocConclusion = 156

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DocCover = 157

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DocCredit = 158

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DocCredits = 159

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DocDedication = 160

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DocEndnote = 161

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DocEndnotes = 162

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DocEpigraph = 163

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DocEpilogue = 164

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DocErrata = 165

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DocExample = 166

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DocFootnote = 167

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DocForeword = 168

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DocGlossary = 169

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DocGlossRef = 170

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DocIndex = 171

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DocIntroduction = 172

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DocNoteRef = 173

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DocNotice = 174

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DocPageBreak = 175

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DocPageFooter = 176

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DocPageHeader = 177

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DocPageList = 178

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DocPart = 179

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DocPreface = 180

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DocPrologue = 181

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DocPullquote = 182

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DocQna = 183

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DocSubtitle = 184

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DocTip = 185

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DocToc = 186

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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.

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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§

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impl Clone for Role

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fn clone(&self) -> Role

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
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impl Debug for Role

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

Formats the value using the given formatter. Read more
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impl Default for Role

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fn default() -> Role

Returns the “default value” for a type. Read more
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impl Hash for Role

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fn hash<__H>(&self, state: &mut __H)
where __H: Hasher,

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for Role

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

This method returns an Ordering between self and other. Read more
1.21.0 · source§

fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl PartialEq for Role

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

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

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

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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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 more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

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

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impl Eq for Role

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impl StructuralEq for Role

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impl StructuralPartialEq for Role

Auto Trait Implementations§

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impl RefUnwindSafe for Role

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impl Send for Role

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impl Sync for Role

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impl Unpin for Role

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impl UnwindSafe for Role

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T, U> AsBindGroupShaderType<U> for T
where U: ShaderType, &'a T: for<'a> Into<U>,

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fn as_bind_group_shader_type(&self, _images: &RenderAssets<Image>) -> U

Return the T ShaderType for self. When used in AsBindGroup derives, it is safe to assume that all images in self exist.
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<Q, K> Comparable<K> for Q
where Q: Ord + ?Sized, K: Borrow<Q> + ?Sized,

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fn compare(&self, key: &K) -> Ordering

Compare self to key and return their ordering.
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impl<T> Downcast<T> for T

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fn downcast(&self) -> &T

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impl<T> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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impl<T> DynEq for T
where T: Any + Eq,

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fn as_any(&self) -> &(dyn Any + 'static)

Casts the type to dyn Any.
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fn dyn_eq(&self, other: &(dyn DynEq + 'static)) -> bool

This method tests for self and other values to be equal. Read more
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impl<T> DynHash for T
where T: DynEq + Hash,

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fn as_dyn_eq(&self) -> &(dyn DynEq + 'static)

Casts the type to dyn Any.
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fn dyn_hash(&self, state: &mut dyn Hasher)

Feeds this value into the given Hasher.
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<S> FromSample<S> for S

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fn from_sample_(s: S) -> S

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impl<T> FromWorld for T
where T: Default,

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fn from_world(_world: &mut World) -> T

Creates Self using data from the given World.
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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> ToSample<U> for T
where U: FromSample<T>,

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fn to_sample_(self) -> U

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> TypeData for T
where T: 'static + Send + Sync + Clone,

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impl<T> Upcast<T> for T

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fn upcast(&self) -> Option<&T>

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<S, T> Duplex<S> for T
where T: FromSample<S> + ToSample<S>,

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impl<N> NodeTrait for N
where N: Copy + Ord + Hash,

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impl<T> Settings for T
where T: 'static + Send + Sync,

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impl<T> WasmNotSend for T
where T: Send,

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impl<T> WasmNotSendSync for T

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impl<T> WasmNotSync for T
where T: Sync,