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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:expandtab:shiftwidth=2:tabstop=2:
*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "ARIAMap.h"
#include "nsAccUtils.h"
#include "nsCoreUtils.h"
#include "Role.h"
#include "States.h"
#include "nsAttrName.h"
#include "nsWhitespaceTokenizer.h"
#include "mozilla/BinarySearch.h"
#include "mozilla/dom/Element.h"
#include "nsUnicharUtils.h"
using namespace mozilla;
using namespace mozilla::a11y;
using namespace mozilla::a11y::aria;
static const uint32_t kGenericAccType = 0;
/**
* This list of WAI-defined roles are currently hardcoded.
* Eventually we will most likely be loading an RDF resource that contains this
* information Using RDF will also allow for role extensibility. See bug 280138.
*
* Definition of nsRoleMapEntry contains comments explaining this table.
*
* When no Role enum mapping exists for an ARIA role, the role will be exposed
* via the object attribute "xml-roles".
*/
static const nsRoleMapEntry sWAIRoleMaps[] = {
// clang-format off
{ // alert
nsGkAtoms::alert,
roles::ALERT,
kUseMapRole,
eNoValue,
eNoAction,
#if defined(XP_MACOSX)
eAssertiveLiveAttr,
#else
eNoLiveAttr,
#endif
eAlert,
kNoReqStates
},
{ // alertdialog
nsGkAtoms::alertdialog,
roles::DIALOG,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // application
nsGkAtoms::application,
roles::APPLICATION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // article
nsGkAtoms::article,
roles::ARTICLE,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates,
eReadonlyUntilEditable
},
{ // banner
nsGkAtoms::banner,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // blockquote
nsGkAtoms::blockquote,
roles::BLOCKQUOTE,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
},
{ // button
nsGkAtoms::button,
roles::PUSHBUTTON,
kUseMapRole,
eNoValue,
ePressAction,
eNoLiveAttr,
eButton,
kNoReqStates
// eARIAPressed is auto applied on any button
},
{ // caption
nsGkAtoms::caption,
roles::CAPTION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
},
{ // cell
nsGkAtoms::cell,
roles::CELL,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eTableCell,
kNoReqStates
},
{ // checkbox
nsGkAtoms::checkbox,
roles::CHECKBUTTON,
kUseMapRole,
eNoValue,
eCheckUncheckAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates,
eARIACheckableMixed,
eARIAReadonly
},
{ // code
nsGkAtoms::code,
roles::CODE,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
},
{ // columnheader
nsGkAtoms::columnheader,
roles::COLUMNHEADER,
kUseMapRole,
eNoValue,
eSortAction,
eNoLiveAttr,
eTableCell,
kNoReqStates,
eARIASelectableIfDefined,
eARIAReadonly
},
{ // combobox, which consists of text input and popup
nsGkAtoms::combobox,
roles::EDITCOMBOBOX,
kUseMapRole,
eNoValue,
eOpenCloseAction,
eNoLiveAttr,
eCombobox,
states::COLLAPSED | states::HASPOPUP,
eARIAAutoComplete,
eARIAReadonly,
eARIAOrientation
},
{ // comment
nsGkAtoms::comment,
roles::COMMENT,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
},
{ // complementary
nsGkAtoms::complementary,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // contentinfo
nsGkAtoms::contentinfo,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // deletion
nsGkAtoms::deletion,
roles::CONTENT_DELETION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
},
{ // dialog
nsGkAtoms::dialog,
roles::DIALOG,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // directory
nsGkAtoms::directory,
roles::LIST,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eList,
states::READONLY
},
{ // doc-abstract
nsGkAtoms::docAbstract,
roles::SECTION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // doc-acknowledgments
nsGkAtoms::docAcknowledgments,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-afterword
nsGkAtoms::docAfterword,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-appendix
nsGkAtoms::docAppendix,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-backlink
nsGkAtoms::docBacklink,
roles::LINK,
kUseMapRole,
eNoValue,
eJumpAction,
eNoLiveAttr,
kGenericAccType,
states::LINKED
},
{ // doc-biblioentry
nsGkAtoms::docBiblioentry,
roles::LISTITEM,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
states::READONLY
},
{ // doc-bibliography
nsGkAtoms::docBibliography,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-biblioref
nsGkAtoms::docBiblioref,
roles::LINK,
kUseMapRole,
eNoValue,
eJumpAction,
eNoLiveAttr,
kGenericAccType,
states::LINKED
},
{ // doc-chapter
nsGkAtoms::docChapter,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-colophon
nsGkAtoms::docColophon,
roles::SECTION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // doc-conclusion
nsGkAtoms::docConclusion,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-cover
nsGkAtoms::docCover,
roles::GRAPHIC,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // doc-credit
nsGkAtoms::docCredit,
roles::SECTION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // doc-credits
nsGkAtoms::docCredits,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-dedication
nsGkAtoms::docDedication,
roles::SECTION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // doc-endnote
nsGkAtoms::docEndnote,
roles::LISTITEM,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
states::READONLY
},
{ // doc-endnotes
nsGkAtoms::docEndnotes,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-epigraph
nsGkAtoms::docEpigraph,
roles::SECTION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // doc-epilogue
nsGkAtoms::docEpilogue,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-errata
nsGkAtoms::docErrata,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-example
nsGkAtoms::docExample,
roles::SECTION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // doc-footnote
nsGkAtoms::docFootnote,
roles::FOOTNOTE,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-foreword
nsGkAtoms::docForeword,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-glossary
nsGkAtoms::docGlossary,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-glossref
nsGkAtoms::docGlossref,
roles::LINK,
kUseMapRole,
eNoValue,
eJumpAction,
eNoLiveAttr,
kGenericAccType,
states::LINKED
},
{ // doc-index
nsGkAtoms::docIndex,
roles::NAVIGATION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-introduction
nsGkAtoms::docIntroduction,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-noteref
nsGkAtoms::docNoteref,
roles::LINK,
kUseMapRole,
eNoValue,
eJumpAction,
eNoLiveAttr,
kGenericAccType,
states::LINKED
},
{ // doc-notice
nsGkAtoms::docNotice,
roles::NOTE,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // doc-pagebreak
nsGkAtoms::docPagebreak,
roles::SEPARATOR,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // doc-pagelist
nsGkAtoms::docPagelist,
roles::NAVIGATION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-part
nsGkAtoms::docPart,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-preface
nsGkAtoms::docPreface,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-prologue
nsGkAtoms::docPrologue,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // doc-pullquote
nsGkAtoms::docPullquote,
roles::SECTION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // doc-qna
nsGkAtoms::docQna,
roles::SECTION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // doc-subtitle
nsGkAtoms::docSubtitle,
roles::HEADING,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // doc-tip
nsGkAtoms::docTip,
roles::NOTE,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // doc-toc
nsGkAtoms::docToc,
roles::NAVIGATION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // document
nsGkAtoms::document,
roles::NON_NATIVE_DOCUMENT,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates,
eReadonlyUntilEditable
},
{ // feed
nsGkAtoms::feed,
roles::GROUPING,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // figure
nsGkAtoms::figure,
roles::FIGURE,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // form
nsGkAtoms::form,
roles::FORM,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // graphics-document
nsGkAtoms::graphicsDocument,
roles::NON_NATIVE_DOCUMENT,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates,
eReadonlyUntilEditable
},
{ // graphics-object
nsGkAtoms::graphicsObject,
roles::GROUPING,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // graphics-symbol
nsGkAtoms::graphicsSymbol,
roles::GRAPHIC,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // grid
nsGkAtoms::grid,
roles::TABLE,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eSelect | eTable,
kNoReqStates,
eARIAMultiSelectable,
eARIAReadonly,
eFocusableUntilDisabled
},
{ // gridcell
nsGkAtoms::gridcell,
roles::GRID_CELL,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eTableCell,
kNoReqStates,
eARIASelectable,
eARIAReadonly
},
{ // group
nsGkAtoms::group,
roles::GROUPING,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // heading
nsGkAtoms::heading,
roles::HEADING,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // img
nsGkAtoms::img,
roles::GRAPHIC,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // insertion
nsGkAtoms::insertion,
roles::CONTENT_INSERTION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
},
{ // key
nsGkAtoms::key,
roles::KEY,
kUseMapRole,
eNoValue,
ePressAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates,
eARIAPressed
},
{ // link
nsGkAtoms::link,
roles::LINK,
kUseMapRole,
eNoValue,
eJumpAction,
eNoLiveAttr,
kGenericAccType,
states::LINKED
},
{ // list
nsGkAtoms::list_,
roles::LIST,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eList,
states::READONLY
},
{ // listbox
nsGkAtoms::listbox,
roles::LISTBOX,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eListControl | eSelect,
states::VERTICAL,
eARIAMultiSelectable,
eARIAReadonly,
eFocusableUntilDisabled,
eARIAOrientation
},
{ // listitem
nsGkAtoms::listitem,
roles::LISTITEM,
kUseMapRole,
eNoValue,
eNoAction, // XXX: should depend on state, parent accessible
eNoLiveAttr,
kGenericAccType,
states::READONLY
},
{ // log
nsGkAtoms::log_,
roles::NOTHING,
kUseNativeRole,
eNoValue,
eNoAction,
ePoliteLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // main
nsGkAtoms::main,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // mark
nsGkAtoms::mark,
roles::MARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
},
{ // marquee
nsGkAtoms::marquee,
roles::ANIMATION,
kUseMapRole,
eNoValue,
eNoAction,
eOffLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // math
nsGkAtoms::math,
roles::FLAT_EQUATION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // menu
nsGkAtoms::menu,
roles::MENUPOPUP,
kUseMapRole,
eNoValue,
eNoAction, // XXX: technically accessibles of menupopup role haven't
// any action, but menu can be open or close.
eNoLiveAttr,
kGenericAccType,
states::VERTICAL,
eARIAOrientation
},
{ // menubar
nsGkAtoms::menubar,
roles::MENUBAR,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
states::HORIZONTAL,
eARIAOrientation
},
{ // menuitem
nsGkAtoms::menuitem,
roles::MENUITEM,
kUseMapRole,
eNoValue,
eClickAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // menuitemcheckbox
nsGkAtoms::menuitemcheckbox,
roles::CHECK_MENU_ITEM,
kUseMapRole,
eNoValue,
eClickAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates,
eARIACheckableMixed,
eARIAReadonly
},
{ // menuitemradio
nsGkAtoms::menuitemradio,
roles::RADIO_MENU_ITEM,
kUseMapRole,
eNoValue,
eClickAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates,
eARIACheckableBool,
eARIAReadonly
},
{ // meter
nsGkAtoms::meter,
roles::METER,
kUseMapRole,
eHasValueMinMax,
eNoAction,
eNoLiveAttr,
kGenericAccType,
states::READONLY
},
{ // navigation
nsGkAtoms::navigation,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // none
nsGkAtoms::none,
roles::NOTHING,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // note
nsGkAtoms::note_,
roles::NOTE,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // option
nsGkAtoms::option,
roles::OPTION,
kUseMapRole,
eNoValue,
eSelectAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates,
eARIASelectable,
eARIACheckedMixed
},
{ // paragraph
nsGkAtoms::paragraph,
roles::PARAGRAPH,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
},
{ // presentation
nsGkAtoms::presentation,
roles::NOTHING,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // progressbar
nsGkAtoms::progressbar,
roles::PROGRESSBAR,
kUseMapRole,
eHasValueMinMax,
eNoAction,
eNoLiveAttr,
kGenericAccType,
states::READONLY,
eIndeterminateIfNoValue
},
{ // radio
nsGkAtoms::radio,
roles::RADIOBUTTON,
kUseMapRole,
eNoValue,
eSelectAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates,
eARIACheckableBool
},
{ // radiogroup
nsGkAtoms::radiogroup,
roles::RADIO_GROUP,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates,
eARIAOrientation,
eARIAReadonly
},
{ // region
nsGkAtoms::region,
roles::REGION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // row
nsGkAtoms::row,
roles::ROW,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eTableRow,
kNoReqStates,
eARIASelectable
},
{ // rowgroup
nsGkAtoms::rowgroup,
roles::GROUPING,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // rowheader
nsGkAtoms::rowheader,
roles::ROWHEADER,
kUseMapRole,
eNoValue,
eSortAction,
eNoLiveAttr,
eTableCell,
kNoReqStates,
eARIASelectableIfDefined,
eARIAReadonly
},
{ // scrollbar
nsGkAtoms::scrollbar,
roles::SCROLLBAR,
kUseMapRole,
eHasValueMinMax,
eNoAction,
eNoLiveAttr,
kGenericAccType,
states::VERTICAL,
eARIAOrientation,
eARIAReadonly
},
{ // search
nsGkAtoms::search,
roles::LANDMARK,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eLandmark,
kNoReqStates
},
{ // searchbox
nsGkAtoms::searchbox,
roles::ENTRY,
kUseMapRole,
eNoValue,
eActivateAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates,
eARIAAutoComplete,
eARIAMultiline,
eARIAReadonlyOrEditable
},
{ // separator
nsGkAtoms::separator_,
roles::SEPARATOR,
kUseMapRole,
eHasValueMinMaxIfFocusable,
eNoAction,
eNoLiveAttr,
kGenericAccType,
states::HORIZONTAL,
eARIAOrientation
},
{ // slider
nsGkAtoms::slider,
roles::SLIDER,
kUseMapRole,
eHasValueMinMax,
eNoAction,
eNoLiveAttr,
kGenericAccType,
states::HORIZONTAL,
eARIAOrientation,
eARIAReadonly
},
{ // spinbutton
nsGkAtoms::spinbutton,
roles::SPINBUTTON,
kUseMapRole,
eHasValueMinMax,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates,
eARIAReadonly
},
{ // status
nsGkAtoms::status,
roles::STATUSBAR,
kUseMapRole,
eNoValue,
eNoAction,
ePoliteLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // suggestion
nsGkAtoms::suggestion,
roles::SUGGESTION,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
},
{ // switch
nsGkAtoms::svgSwitch,
roles::SWITCH,
kUseMapRole,
eNoValue,
eCheckUncheckAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates,
eARIACheckableBool,
eARIAReadonly
},
{ // tab
nsGkAtoms::tab,
roles::PAGETAB,
kUseMapRole,
eNoValue,
eSwitchAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates,
eARIASelectable
},
{ // table
nsGkAtoms::table,
roles::TABLE,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eTable,
kNoReqStates,
eARIASelectable
},
{ // tablist
nsGkAtoms::tablist,
roles::PAGETABLIST,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eSelect,
states::HORIZONTAL,
eARIAOrientation,
eARIAMultiSelectable
},
{ // tabpanel
nsGkAtoms::tabpanel,
roles::PROPERTYPAGE,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // term
nsGkAtoms::term,
roles::TERM,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
states::READONLY
},
{ // textbox
nsGkAtoms::textbox,
roles::ENTRY,
kUseMapRole,
eNoValue,
eActivateAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates,
eARIAAutoComplete,
eARIAMultiline,
eARIAReadonlyOrEditable
},
{ // timer
nsGkAtoms::timer,
roles::NOTHING,
kUseNativeRole,
eNoValue,
eNoAction,
eOffLiveAttr,
kNoReqStates
},
{ // toolbar
nsGkAtoms::toolbar,
roles::TOOLBAR,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
states::HORIZONTAL,
eARIAOrientation
},
{ // tooltip
nsGkAtoms::tooltip,
roles::TOOLTIP,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
kGenericAccType,
kNoReqStates
},
{ // tree
nsGkAtoms::tree,
roles::OUTLINE,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eSelect,
states::VERTICAL,
eARIAReadonly,
eARIAMultiSelectable,
eFocusableUntilDisabled,
eARIAOrientation
},
{ // treegrid
nsGkAtoms::treegrid,
roles::TREE_TABLE,
kUseMapRole,
eNoValue,
eNoAction,
eNoLiveAttr,
eSelect | eTable,
kNoReqStates,
eARIAReadonly,
eARIAMultiSelectable,
eFocusableUntilDisabled,
eARIAOrientation
},
{ // treeitem
nsGkAtoms::treeitem,
roles::OUTLINEITEM,
kUseMapRole,
eNoValue,
eActivateAction, // XXX: should expose second 'expand/collapse' action based
// on states
eNoLiveAttr,
kGenericAccType,
kNoReqStates,
eARIASelectable,
eARIACheckedMixed
}
// clang-format on
};
static const nsRoleMapEntry sLandmarkRoleMap = {
nsGkAtoms::_empty, roles::NOTHING, kUseNativeRole, eNoValue,
eNoAction, eNoLiveAttr, kGenericAccType, kNoReqStates};
nsRoleMapEntry aria::gEmptyRoleMap = {
nsGkAtoms::_empty, roles::TEXT_CONTAINER, kUseMapRole, eNoValue,
eNoAction, eNoLiveAttr, kGenericAccType, kNoReqStates};
/**
* Universal (Global) states:
* The following state rules are applied to any accessible element,
* whether there is an ARIA role or not:
*/
static const EStateRule sWAIUnivStateMap[] = {
eARIABusy, eARIACurrent, eARIADisabled,
eARIAExpanded, // Currently under spec review but precedent exists
eARIAHasPopup, // Note this is a tokenised attribute starting in ARIA 1.1
eARIAInvalid, eARIAModal,
eARIARequired, // XXX not global, Bug 553117
eARIANone};
/**
* ARIA attribute map for attribute characteristics.
* @note ARIA attributes that don't have any flags are not included here.
*/
struct AttrCharacteristics {
const nsStaticAtom* const attributeName;
const uint8_t characteristics;
};
static const AttrCharacteristics gWAIUnivAttrMap[] = {
// clang-format off
{nsGkAtoms::aria_activedescendant, ATTR_BYPASSOBJ },
{nsGkAtoms::aria_atomic, ATTR_BYPASSOBJ_IF_FALSE | ATTR_VALTOKEN | ATTR_GLOBAL },
{nsGkAtoms::aria_busy, ATTR_VALTOKEN | ATTR_GLOBAL },
{nsGkAtoms::aria_checked, ATTR_BYPASSOBJ | ATTR_VALTOKEN }, /* exposes checkable obj attr */
{nsGkAtoms::aria_controls, ATTR_BYPASSOBJ | ATTR_GLOBAL },
{nsGkAtoms::aria_current, ATTR_BYPASSOBJ_IF_FALSE | ATTR_VALTOKEN | ATTR_GLOBAL },
{nsGkAtoms::aria_describedby, ATTR_BYPASSOBJ | ATTR_GLOBAL },
// XXX Ideally, aria-description shouldn't expose a description object
// attribute (i.e. it should have ATTR_BYPASSOBJ). However, until the
// description-from attribute is implemented (bug 1726087), clients such as
// NVDA depend on the description object attribute to work out whether the
// accDescription originated from aria-description.
{nsGkAtoms::aria_description, ATTR_GLOBAL },
{nsGkAtoms::aria_details, ATTR_BYPASSOBJ | ATTR_GLOBAL },
{nsGkAtoms::aria_disabled, ATTR_BYPASSOBJ | ATTR_VALTOKEN | ATTR_GLOBAL },
{nsGkAtoms::aria_dropeffect, ATTR_VALTOKEN | ATTR_GLOBAL },
{nsGkAtoms::aria_errormessage, ATTR_BYPASSOBJ | ATTR_GLOBAL },
{nsGkAtoms::aria_expanded, ATTR_BYPASSOBJ | ATTR_VALTOKEN },
{nsGkAtoms::aria_flowto, ATTR_BYPASSOBJ | ATTR_GLOBAL },
{nsGkAtoms::aria_grabbed, ATTR_VALTOKEN | ATTR_GLOBAL },
{nsGkAtoms::aria_haspopup, ATTR_BYPASSOBJ_IF_FALSE | ATTR_VALTOKEN | ATTR_GLOBAL },
{nsGkAtoms::aria_hidden, ATTR_BYPASSOBJ | ATTR_VALTOKEN | ATTR_GLOBAL }, /* handled special way */
{nsGkAtoms::aria_invalid, ATTR_BYPASSOBJ | ATTR_VALTOKEN | ATTR_GLOBAL },
{nsGkAtoms::aria_label, ATTR_BYPASSOBJ | ATTR_GLOBAL },
{nsGkAtoms::aria_labelledby, ATTR_BYPASSOBJ | ATTR_GLOBAL },
{nsGkAtoms::aria_level, ATTR_BYPASSOBJ }, /* handled via groupPosition */
{nsGkAtoms::aria_live, ATTR_VALTOKEN | ATTR_GLOBAL },
{nsGkAtoms::aria_modal, ATTR_BYPASSOBJ | ATTR_VALTOKEN | ATTR_GLOBAL },
{nsGkAtoms::aria_multiline, ATTR_BYPASSOBJ | ATTR_VALTOKEN },
{nsGkAtoms::aria_multiselectable, ATTR_BYPASSOBJ | ATTR_VALTOKEN },
{nsGkAtoms::aria_owns, ATTR_BYPASSOBJ | ATTR_GLOBAL },
{nsGkAtoms::aria_orientation, ATTR_VALTOKEN },
{nsGkAtoms::aria_posinset, ATTR_BYPASSOBJ }, /* handled via groupPosition */
{nsGkAtoms::aria_pressed, ATTR_BYPASSOBJ | ATTR_VALTOKEN },
{nsGkAtoms::aria_readonly, ATTR_BYPASSOBJ | ATTR_VALTOKEN },
{nsGkAtoms::aria_relevant, ATTR_BYPASSOBJ | ATTR_GLOBAL },
{nsGkAtoms::aria_required, ATTR_BYPASSOBJ | ATTR_VALTOKEN },
{nsGkAtoms::aria_selected, ATTR_BYPASSOBJ | ATTR_VALTOKEN },
{nsGkAtoms::aria_setsize, ATTR_BYPASSOBJ }, /* handled via groupPosition */
{nsGkAtoms::aria_sort, ATTR_VALTOKEN },
{nsGkAtoms::aria_valuenow, ATTR_BYPASSOBJ },
{nsGkAtoms::aria_valuemin, ATTR_BYPASSOBJ },
{nsGkAtoms::aria_valuemax, ATTR_BYPASSOBJ },
{nsGkAtoms::aria_valuetext, ATTR_BYPASSOBJ }
// clang-format on
};
const nsRoleMapEntry* aria::GetRoleMap(dom::Element* aEl) {
return GetRoleMapFromIndex(GetRoleMapIndex(aEl));
}
uint8_t aria::GetRoleMapIndex(dom::Element* aEl) {
nsAutoString roles;
if (!aEl || !aEl->GetAttr(kNameSpaceID_None, nsGkAtoms::role, roles) ||
roles.IsEmpty()) {
// We treat role="" as if the role attribute is absent (per aria spec:8.1.1)
return NO_ROLE_MAP_ENTRY_INDEX;
}
nsWhitespaceTokenizer tokenizer(roles);
while (tokenizer.hasMoreTokens()) {
// Do a binary search through table for the next role in role list
const nsDependentSubstring role = tokenizer.nextToken();
size_t idx;
auto comparator = [&role](const nsRoleMapEntry& aEntry) {
return Compare(role, aEntry.ARIARoleString(),
nsCaseInsensitiveStringComparator);
};
if (BinarySearchIf(sWAIRoleMaps, 0, ArrayLength(sWAIRoleMaps), comparator,
&idx)) {
return idx;
}
}
// Always use some entry index if there is a non-empty role string
// To ensure an accessible object is created
return LANDMARK_ROLE_MAP_ENTRY_INDEX;
}
const nsRoleMapEntry* aria::GetRoleMapFromIndex(uint8_t aRoleMapIndex) {
switch (aRoleMapIndex) {
case NO_ROLE_MAP_ENTRY_INDEX:
return nullptr;
case EMPTY_ROLE_MAP_ENTRY_INDEX:
return &gEmptyRoleMap;
case LANDMARK_ROLE_MAP_ENTRY_INDEX:
return &sLandmarkRoleMap;
default:
return sWAIRoleMaps + aRoleMapIndex;
}
}
uint8_t aria::GetIndexFromRoleMap(const nsRoleMapEntry* aRoleMapEntry) {
if (aRoleMapEntry == nullptr) {
return NO_ROLE_MAP_ENTRY_INDEX;
} else if (aRoleMapEntry == &gEmptyRoleMap) {
return EMPTY_ROLE_MAP_ENTRY_INDEX;
} else if (aRoleMapEntry == &sLandmarkRoleMap) {
return LANDMARK_ROLE_MAP_ENTRY_INDEX;
} else {
return aRoleMapEntry - sWAIRoleMaps;
}
}
uint64_t aria::UniversalStatesFor(mozilla::dom::Element* aElement) {
uint64_t state = 0;
uint32_t index = 0;
while (MapToState(sWAIUnivStateMap[index], aElement, &state)) index++;
return state;
}
uint8_t aria::AttrCharacteristicsFor(nsAtom* aAtom) {
for (uint32_t i = 0; i < ArrayLength(gWAIUnivAttrMap); i++) {
if (gWAIUnivAttrMap[i].attributeName == aAtom) {
return gWAIUnivAttrMap[i].characteristics;
}
}
return 0;
}
bool aria::HasDefinedARIAHidden(nsIContent* aContent) {
return aContent && aContent->IsElement() &&
aContent->AsElement()->AttrValueIs(kNameSpaceID_None,
nsGkAtoms::aria_hidden,
nsGkAtoms::_true, eCaseMatters);
}
////////////////////////////////////////////////////////////////////////////////
// AttrIterator class
AttrIterator::AttrIterator(nsIContent* aContent)
: mElement(dom::Element::FromNode(aContent)), mAttrIdx(0) {
mAttrCount = mElement ? mElement->GetAttrCount() : 0;
}
bool AttrIterator::Next() {
while (mAttrIdx < mAttrCount) {
const nsAttrName* attr = mElement->GetAttrNameAt(mAttrIdx);
mAttrIdx++;
if (attr->NamespaceEquals(kNameSpaceID_None)) {
mAttrAtom = attr->Atom();
nsDependentAtomString attrStr(mAttrAtom);
if (!StringBeginsWith(attrStr, u"aria-"_ns)) continue; // Not ARIA
uint8_t attrFlags = aria::AttrCharacteristicsFor(mAttrAtom);
if (attrFlags & ATTR_BYPASSOBJ) {
continue; // No need to handle exposing as obj attribute here
}
if ((attrFlags & ATTR_VALTOKEN) &&
!nsAccUtils::HasDefinedARIAToken(mElement, mAttrAtom)) {
continue; // only expose token based attributes if they are defined
}
if ((attrFlags & ATTR_BYPASSOBJ_IF_FALSE) &&
mElement->AttrValueIs(kNameSpaceID_None, mAttrAtom, nsGkAtoms::_false,
eCaseMatters)) {
continue; // only expose token based attribute if value is not 'false'.
}
return true;
}
}
mAttrAtom = nullptr;
return false;
}
void AttrIterator::AttrName(nsAString& aAttrName) const {
nsDependentAtomString attrStr(mAttrAtom);
MOZ_ASSERT(StringBeginsWith(attrStr, u"aria-"_ns),
"Stored atom is an aria attribute.");
aAttrName.Assign(Substring(attrStr, 5));
}
nsAtom* AttrIterator::AttrName() const { return mAttrAtom; }
void AttrIterator::AttrValue(nsAString& aAttrValue) const {
nsAutoString value;
if (mElement->GetAttr(kNameSpaceID_None, mAttrAtom, value)) {
if (aria::AttrCharacteristicsFor(mAttrAtom) & ATTR_VALTOKEN) {
nsAtom* normalizedValue =
nsAccUtils::NormalizeARIAToken(mElement, mAttrAtom);
if (normalizedValue) {
nsDependentAtomString normalizedValueStr(normalizedValue);
aAttrValue.Assign(normalizedValueStr);
return;
}
}
aAttrValue.Assign(value);
}
}