1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/accessible/src/base/ARIAMap.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,823 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim:expandtab:shiftwidth=2:tabstop=2:
1.6 + */
1.7 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.8 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.9 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.10 +
1.11 +#include "ARIAMap.h"
1.12 +
1.13 +#include "nsAccUtils.h"
1.14 +#include "nsCoreUtils.h"
1.15 +#include "Role.h"
1.16 +#include "States.h"
1.17 +
1.18 +#include "nsAttrName.h"
1.19 +#include "nsWhitespaceTokenizer.h"
1.20 +
1.21 +using namespace mozilla;
1.22 +using namespace mozilla::a11y;
1.23 +using namespace mozilla::a11y::aria;
1.24 +
1.25 +static const uint32_t kGenericAccType = 0;
1.26 +
1.27 +/**
1.28 + * This list of WAI-defined roles are currently hardcoded.
1.29 + * Eventually we will most likely be loading an RDF resource that contains this information
1.30 + * Using RDF will also allow for role extensibility. See bug 280138.
1.31 + *
1.32 + * Definition of nsRoleMapEntry contains comments explaining this table.
1.33 + *
1.34 + * When no nsIAccessibleRole enum mapping exists for an ARIA role, the
1.35 + * role will be exposed via the object attribute "xml-roles".
1.36 + * In addition, in MSAA, the unmapped role will also be exposed as a BSTR string role.
1.37 + *
1.38 + * There are no nsIAccessibleRole enums for the following landmark roles:
1.39 + * banner, contentinfo, main, navigation, note, search, secondary, seealso, breadcrumbs
1.40 + */
1.41 +
1.42 +static nsRoleMapEntry sWAIRoleMaps[] =
1.43 +{
1.44 + { // alert
1.45 + &nsGkAtoms::alert,
1.46 + roles::ALERT,
1.47 + kUseMapRole,
1.48 + eNoValue,
1.49 + eNoAction,
1.50 + eNoLiveAttr,
1.51 + kGenericAccType,
1.52 + kNoReqStates
1.53 + },
1.54 + { // alertdialog
1.55 + &nsGkAtoms::alertdialog,
1.56 + roles::DIALOG,
1.57 + kUseMapRole,
1.58 + eNoValue,
1.59 + eNoAction,
1.60 + eNoLiveAttr,
1.61 + kGenericAccType,
1.62 + kNoReqStates
1.63 + },
1.64 + { // application
1.65 + &nsGkAtoms::application,
1.66 + roles::APPLICATION,
1.67 + kUseMapRole,
1.68 + eNoValue,
1.69 + eNoAction,
1.70 + eNoLiveAttr,
1.71 + kGenericAccType,
1.72 + kNoReqStates
1.73 + },
1.74 + { // article
1.75 + &nsGkAtoms::article,
1.76 + roles::DOCUMENT,
1.77 + kUseMapRole,
1.78 + eNoValue,
1.79 + eNoAction,
1.80 + eNoLiveAttr,
1.81 + kGenericAccType,
1.82 + kNoReqStates,
1.83 + eReadonlyUntilEditable
1.84 + },
1.85 + { // button
1.86 + &nsGkAtoms::button,
1.87 + roles::PUSHBUTTON,
1.88 + kUseMapRole,
1.89 + eNoValue,
1.90 + ePressAction,
1.91 + eNoLiveAttr,
1.92 + eButton,
1.93 + kNoReqStates
1.94 + // eARIAPressed is auto applied on any button
1.95 + },
1.96 + { // checkbox
1.97 + &nsGkAtoms::checkbox,
1.98 + roles::CHECKBUTTON,
1.99 + kUseMapRole,
1.100 + eNoValue,
1.101 + eCheckUncheckAction,
1.102 + eNoLiveAttr,
1.103 + kGenericAccType,
1.104 + kNoReqStates,
1.105 + eARIACheckableMixed,
1.106 + eARIAReadonly
1.107 + },
1.108 + { // columnheader
1.109 + &nsGkAtoms::columnheader,
1.110 + roles::COLUMNHEADER,
1.111 + kUseMapRole,
1.112 + eNoValue,
1.113 + eSortAction,
1.114 + eNoLiveAttr,
1.115 + eTableCell,
1.116 + kNoReqStates,
1.117 + eARIASelectableIfDefined,
1.118 + eARIAReadonlyOrEditableIfDefined
1.119 + },
1.120 + { // combobox
1.121 + &nsGkAtoms::combobox,
1.122 + roles::COMBOBOX,
1.123 + kUseMapRole,
1.124 + eNoValue,
1.125 + eOpenCloseAction,
1.126 + eNoLiveAttr,
1.127 + kGenericAccType,
1.128 + states::COLLAPSED | states::HASPOPUP,
1.129 + eARIAAutoComplete,
1.130 + eARIAReadonly
1.131 + },
1.132 + { // dialog
1.133 + &nsGkAtoms::dialog,
1.134 + roles::DIALOG,
1.135 + kUseMapRole,
1.136 + eNoValue,
1.137 + eNoAction,
1.138 + eNoLiveAttr,
1.139 + kGenericAccType,
1.140 + kNoReqStates
1.141 + },
1.142 + { // directory
1.143 + &nsGkAtoms::directory,
1.144 + roles::LIST,
1.145 + kUseMapRole,
1.146 + eNoValue,
1.147 + eNoAction,
1.148 + eNoLiveAttr,
1.149 + eList,
1.150 + kNoReqStates
1.151 + },
1.152 + { // document
1.153 + &nsGkAtoms::document,
1.154 + roles::DOCUMENT,
1.155 + kUseMapRole,
1.156 + eNoValue,
1.157 + eNoAction,
1.158 + eNoLiveAttr,
1.159 + kGenericAccType,
1.160 + kNoReqStates,
1.161 + eReadonlyUntilEditable
1.162 + },
1.163 + { // form
1.164 + &nsGkAtoms::form,
1.165 + roles::FORM,
1.166 + kUseMapRole,
1.167 + eNoValue,
1.168 + eNoAction,
1.169 + eNoLiveAttr,
1.170 + kGenericAccType,
1.171 + kNoReqStates
1.172 + },
1.173 + { // grid
1.174 + &nsGkAtoms::grid,
1.175 + roles::TABLE,
1.176 + kUseMapRole,
1.177 + eNoValue,
1.178 + eNoAction,
1.179 + eNoLiveAttr,
1.180 + eSelect | eTable,
1.181 + kNoReqStates,
1.182 + eARIAMultiSelectable,
1.183 + eARIAReadonlyOrEditable,
1.184 + eFocusableUntilDisabled
1.185 + },
1.186 + { // gridcell
1.187 + &nsGkAtoms::gridcell,
1.188 + roles::GRID_CELL,
1.189 + kUseMapRole,
1.190 + eNoValue,
1.191 + eNoAction,
1.192 + eNoLiveAttr,
1.193 + eTableCell,
1.194 + kNoReqStates,
1.195 + eARIASelectable,
1.196 + eARIAReadonlyOrEditableIfDefined
1.197 + },
1.198 + { // group
1.199 + &nsGkAtoms::group,
1.200 + roles::GROUPING,
1.201 + kUseMapRole,
1.202 + eNoValue,
1.203 + eNoAction,
1.204 + eNoLiveAttr,
1.205 + kGenericAccType,
1.206 + kNoReqStates
1.207 + },
1.208 + { // heading
1.209 + &nsGkAtoms::heading,
1.210 + roles::HEADING,
1.211 + kUseMapRole,
1.212 + eNoValue,
1.213 + eNoAction,
1.214 + eNoLiveAttr,
1.215 + kGenericAccType,
1.216 + kNoReqStates
1.217 + },
1.218 + { // img
1.219 + &nsGkAtoms::img,
1.220 + roles::GRAPHIC,
1.221 + kUseMapRole,
1.222 + eNoValue,
1.223 + eNoAction,
1.224 + eNoLiveAttr,
1.225 + kGenericAccType,
1.226 + kNoReqStates
1.227 + },
1.228 + { // key
1.229 + &nsGkAtoms::key,
1.230 + roles::KEY,
1.231 + kUseMapRole,
1.232 + eNoValue,
1.233 + ePressAction,
1.234 + eNoLiveAttr,
1.235 + kGenericAccType,
1.236 + kNoReqStates,
1.237 + eARIAPressed
1.238 + },
1.239 + { // link
1.240 + &nsGkAtoms::link,
1.241 + roles::LINK,
1.242 + kUseMapRole,
1.243 + eNoValue,
1.244 + eJumpAction,
1.245 + eNoLiveAttr,
1.246 + kGenericAccType,
1.247 + states::LINKED
1.248 + },
1.249 + { // list
1.250 + &nsGkAtoms::list,
1.251 + roles::LIST,
1.252 + kUseMapRole,
1.253 + eNoValue,
1.254 + eNoAction,
1.255 + eNoLiveAttr,
1.256 + eList,
1.257 + states::READONLY
1.258 + },
1.259 + { // listbox
1.260 + &nsGkAtoms::listbox,
1.261 + roles::LISTBOX,
1.262 + kUseMapRole,
1.263 + eNoValue,
1.264 + eNoAction,
1.265 + eNoLiveAttr,
1.266 + eListControl | eSelect,
1.267 + kNoReqStates,
1.268 + eARIAMultiSelectable,
1.269 + eARIAReadonly,
1.270 + eFocusableUntilDisabled
1.271 + },
1.272 + { // listitem
1.273 + &nsGkAtoms::listitem,
1.274 + roles::LISTITEM,
1.275 + kUseMapRole,
1.276 + eNoValue,
1.277 + eNoAction, // XXX: should depend on state, parent accessible
1.278 + eNoLiveAttr,
1.279 + kGenericAccType,
1.280 + states::READONLY
1.281 + },
1.282 + { // log
1.283 + &nsGkAtoms::log_,
1.284 + roles::NOTHING,
1.285 + kUseNativeRole,
1.286 + eNoValue,
1.287 + eNoAction,
1.288 + ePoliteLiveAttr,
1.289 + kGenericAccType,
1.290 + kNoReqStates
1.291 + },
1.292 + { // marquee
1.293 + &nsGkAtoms::marquee,
1.294 + roles::ANIMATION,
1.295 + kUseMapRole,
1.296 + eNoValue,
1.297 + eNoAction,
1.298 + eOffLiveAttr,
1.299 + kGenericAccType,
1.300 + kNoReqStates
1.301 + },
1.302 + { // math
1.303 + &nsGkAtoms::math,
1.304 + roles::FLAT_EQUATION,
1.305 + kUseMapRole,
1.306 + eNoValue,
1.307 + eNoAction,
1.308 + eNoLiveAttr,
1.309 + kGenericAccType,
1.310 + kNoReqStates
1.311 + },
1.312 + { // menu
1.313 + &nsGkAtoms::menu,
1.314 + roles::MENUPOPUP,
1.315 + kUseMapRole,
1.316 + eNoValue,
1.317 + eNoAction, // XXX: technically accessibles of menupopup role haven't
1.318 + // any action, but menu can be open or close.
1.319 + eNoLiveAttr,
1.320 + kGenericAccType,
1.321 + kNoReqStates
1.322 + },
1.323 + { // menubar
1.324 + &nsGkAtoms::menubar,
1.325 + roles::MENUBAR,
1.326 + kUseMapRole,
1.327 + eNoValue,
1.328 + eNoAction,
1.329 + eNoLiveAttr,
1.330 + kGenericAccType,
1.331 + kNoReqStates
1.332 + },
1.333 + { // menuitem
1.334 + &nsGkAtoms::menuitem,
1.335 + roles::MENUITEM,
1.336 + kUseMapRole,
1.337 + eNoValue,
1.338 + eClickAction,
1.339 + eNoLiveAttr,
1.340 + kGenericAccType,
1.341 + kNoReqStates,
1.342 + eARIACheckedMixed
1.343 + },
1.344 + { // menuitemcheckbox
1.345 + &nsGkAtoms::menuitemcheckbox,
1.346 + roles::CHECK_MENU_ITEM,
1.347 + kUseMapRole,
1.348 + eNoValue,
1.349 + eClickAction,
1.350 + eNoLiveAttr,
1.351 + kGenericAccType,
1.352 + kNoReqStates,
1.353 + eARIACheckableMixed
1.354 + },
1.355 + { // menuitemradio
1.356 + &nsGkAtoms::menuitemradio,
1.357 + roles::RADIO_MENU_ITEM,
1.358 + kUseMapRole,
1.359 + eNoValue,
1.360 + eClickAction,
1.361 + eNoLiveAttr,
1.362 + kGenericAccType,
1.363 + kNoReqStates,
1.364 + eARIACheckableBool
1.365 + },
1.366 + { // note
1.367 + &nsGkAtoms::note_,
1.368 + roles::NOTE,
1.369 + kUseMapRole,
1.370 + eNoValue,
1.371 + eNoAction,
1.372 + eNoLiveAttr,
1.373 + kGenericAccType,
1.374 + kNoReqStates
1.375 + },
1.376 + { // option
1.377 + &nsGkAtoms::option,
1.378 + roles::OPTION,
1.379 + kUseMapRole,
1.380 + eNoValue,
1.381 + eSelectAction,
1.382 + eNoLiveAttr,
1.383 + kGenericAccType,
1.384 + kNoReqStates,
1.385 + eARIASelectable,
1.386 + eARIACheckedMixed
1.387 + },
1.388 + { // presentation
1.389 + &nsGkAtoms::presentation,
1.390 + roles::NOTHING,
1.391 + kUseMapRole,
1.392 + eNoValue,
1.393 + eNoAction,
1.394 + eNoLiveAttr,
1.395 + kGenericAccType,
1.396 + kNoReqStates
1.397 + },
1.398 + { // progressbar
1.399 + &nsGkAtoms::progressbar,
1.400 + roles::PROGRESSBAR,
1.401 + kUseMapRole,
1.402 + eHasValueMinMax,
1.403 + eNoAction,
1.404 + eNoLiveAttr,
1.405 + kGenericAccType,
1.406 + states::READONLY,
1.407 + eIndeterminateIfNoValue
1.408 + },
1.409 + { // radio
1.410 + &nsGkAtoms::radio,
1.411 + roles::RADIOBUTTON,
1.412 + kUseMapRole,
1.413 + eNoValue,
1.414 + eSelectAction,
1.415 + eNoLiveAttr,
1.416 + kGenericAccType,
1.417 + kNoReqStates,
1.418 + eARIACheckableBool
1.419 + },
1.420 + { // radiogroup
1.421 + &nsGkAtoms::radiogroup,
1.422 + roles::GROUPING,
1.423 + kUseMapRole,
1.424 + eNoValue,
1.425 + eNoAction,
1.426 + eNoLiveAttr,
1.427 + kGenericAccType,
1.428 + kNoReqStates
1.429 + },
1.430 + { // region
1.431 + &nsGkAtoms::region,
1.432 + roles::PANE,
1.433 + kUseMapRole,
1.434 + eNoValue,
1.435 + eNoAction,
1.436 + eNoLiveAttr,
1.437 + kGenericAccType,
1.438 + kNoReqStates
1.439 + },
1.440 + { // row
1.441 + &nsGkAtoms::row,
1.442 + roles::ROW,
1.443 + kUseMapRole,
1.444 + eNoValue,
1.445 + eNoAction,
1.446 + eNoLiveAttr,
1.447 + eTableRow,
1.448 + kNoReqStates,
1.449 + eARIASelectable
1.450 + },
1.451 + { // rowgroup
1.452 + &nsGkAtoms::rowgroup,
1.453 + roles::GROUPING,
1.454 + kUseMapRole,
1.455 + eNoValue,
1.456 + eNoAction,
1.457 + eNoLiveAttr,
1.458 + kGenericAccType,
1.459 + kNoReqStates
1.460 + },
1.461 + { // rowheader
1.462 + &nsGkAtoms::rowheader,
1.463 + roles::ROWHEADER,
1.464 + kUseMapRole,
1.465 + eNoValue,
1.466 + eSortAction,
1.467 + eNoLiveAttr,
1.468 + eTableCell,
1.469 + kNoReqStates,
1.470 + eARIASelectableIfDefined,
1.471 + eARIAReadonlyOrEditableIfDefined
1.472 + },
1.473 + { // scrollbar
1.474 + &nsGkAtoms::scrollbar,
1.475 + roles::SCROLLBAR,
1.476 + kUseMapRole,
1.477 + eHasValueMinMax,
1.478 + eNoAction,
1.479 + eNoLiveAttr,
1.480 + kGenericAccType,
1.481 + kNoReqStates,
1.482 + eARIAOrientation,
1.483 + eARIAReadonly
1.484 + },
1.485 + { // separator
1.486 + &nsGkAtoms::separator_,
1.487 + roles::SEPARATOR,
1.488 + kUseMapRole,
1.489 + eNoValue,
1.490 + eNoAction,
1.491 + eNoLiveAttr,
1.492 + kGenericAccType,
1.493 + kNoReqStates,
1.494 + eARIAOrientation
1.495 + },
1.496 + { // slider
1.497 + &nsGkAtoms::slider,
1.498 + roles::SLIDER,
1.499 + kUseMapRole,
1.500 + eHasValueMinMax,
1.501 + eNoAction,
1.502 + eNoLiveAttr,
1.503 + kGenericAccType,
1.504 + kNoReqStates,
1.505 + eARIAOrientation,
1.506 + eARIAReadonly
1.507 + },
1.508 + { // spinbutton
1.509 + &nsGkAtoms::spinbutton,
1.510 + roles::SPINBUTTON,
1.511 + kUseMapRole,
1.512 + eHasValueMinMax,
1.513 + eNoAction,
1.514 + eNoLiveAttr,
1.515 + kGenericAccType,
1.516 + kNoReqStates,
1.517 + eARIAReadonly
1.518 + },
1.519 + { // status
1.520 + &nsGkAtoms::status,
1.521 + roles::STATUSBAR,
1.522 + kUseMapRole,
1.523 + eNoValue,
1.524 + eNoAction,
1.525 + ePoliteLiveAttr,
1.526 + kGenericAccType,
1.527 + kNoReqStates
1.528 + },
1.529 + { // tab
1.530 + &nsGkAtoms::tab,
1.531 + roles::PAGETAB,
1.532 + kUseMapRole,
1.533 + eNoValue,
1.534 + eSwitchAction,
1.535 + eNoLiveAttr,
1.536 + kGenericAccType,
1.537 + kNoReqStates,
1.538 + eARIASelectable
1.539 + },
1.540 + { // tablist
1.541 + &nsGkAtoms::tablist,
1.542 + roles::PAGETABLIST,
1.543 + kUseMapRole,
1.544 + eNoValue,
1.545 + eNoAction,
1.546 + eNoLiveAttr,
1.547 + eSelect,
1.548 + kNoReqStates
1.549 + },
1.550 + { // tabpanel
1.551 + &nsGkAtoms::tabpanel,
1.552 + roles::PROPERTYPAGE,
1.553 + kUseMapRole,
1.554 + eNoValue,
1.555 + eNoAction,
1.556 + eNoLiveAttr,
1.557 + kGenericAccType,
1.558 + kNoReqStates
1.559 + },
1.560 + { // textbox
1.561 + &nsGkAtoms::textbox,
1.562 + roles::ENTRY,
1.563 + kUseMapRole,
1.564 + eNoValue,
1.565 + eActivateAction,
1.566 + eNoLiveAttr,
1.567 + kGenericAccType,
1.568 + kNoReqStates,
1.569 + eARIAAutoComplete,
1.570 + eARIAMultiline,
1.571 + eARIAReadonlyOrEditable
1.572 + },
1.573 + { // timer
1.574 + &nsGkAtoms::timer,
1.575 + roles::NOTHING,
1.576 + kUseNativeRole,
1.577 + eNoValue,
1.578 + eNoAction,
1.579 + eOffLiveAttr,
1.580 + kNoReqStates
1.581 + },
1.582 + { // toolbar
1.583 + &nsGkAtoms::toolbar,
1.584 + roles::TOOLBAR,
1.585 + kUseMapRole,
1.586 + eNoValue,
1.587 + eNoAction,
1.588 + eNoLiveAttr,
1.589 + kGenericAccType,
1.590 + kNoReqStates
1.591 + },
1.592 + { // tooltip
1.593 + &nsGkAtoms::tooltip,
1.594 + roles::TOOLTIP,
1.595 + kUseMapRole,
1.596 + eNoValue,
1.597 + eNoAction,
1.598 + eNoLiveAttr,
1.599 + kGenericAccType,
1.600 + kNoReqStates
1.601 + },
1.602 + { // tree
1.603 + &nsGkAtoms::tree,
1.604 + roles::OUTLINE,
1.605 + kUseMapRole,
1.606 + eNoValue,
1.607 + eNoAction,
1.608 + eNoLiveAttr,
1.609 + eSelect,
1.610 + kNoReqStates,
1.611 + eARIAReadonly,
1.612 + eARIAMultiSelectable,
1.613 + eFocusableUntilDisabled
1.614 + },
1.615 + { // treegrid
1.616 + &nsGkAtoms::treegrid,
1.617 + roles::TREE_TABLE,
1.618 + kUseMapRole,
1.619 + eNoValue,
1.620 + eNoAction,
1.621 + eNoLiveAttr,
1.622 + eSelect | eTable,
1.623 + kNoReqStates,
1.624 + eARIAReadonlyOrEditable,
1.625 + eARIAMultiSelectable,
1.626 + eFocusableUntilDisabled
1.627 + },
1.628 + { // treeitem
1.629 + &nsGkAtoms::treeitem,
1.630 + roles::OUTLINEITEM,
1.631 + kUseMapRole,
1.632 + eNoValue,
1.633 + eActivateAction, // XXX: should expose second 'expand/collapse' action based
1.634 + // on states
1.635 + eNoLiveAttr,
1.636 + kGenericAccType,
1.637 + kNoReqStates,
1.638 + eARIASelectable,
1.639 + eARIACheckedMixed
1.640 + }
1.641 +};
1.642 +
1.643 +static nsRoleMapEntry sLandmarkRoleMap = {
1.644 + &nsGkAtoms::_empty,
1.645 + roles::NOTHING,
1.646 + kUseNativeRole,
1.647 + eNoValue,
1.648 + eNoAction,
1.649 + eNoLiveAttr,
1.650 + kGenericAccType,
1.651 + kNoReqStates
1.652 +};
1.653 +
1.654 +nsRoleMapEntry aria::gEmptyRoleMap = {
1.655 + &nsGkAtoms::_empty,
1.656 + roles::NOTHING,
1.657 + kUseMapRole,
1.658 + eNoValue,
1.659 + eNoAction,
1.660 + eNoLiveAttr,
1.661 + kGenericAccType,
1.662 + kNoReqStates
1.663 +};
1.664 +
1.665 +/**
1.666 + * Universal (Global) states:
1.667 + * The following state rules are applied to any accessible element,
1.668 + * whether there is an ARIA role or not:
1.669 + */
1.670 +static const EStateRule sWAIUnivStateMap[] = {
1.671 + eARIABusy,
1.672 + eARIADisabled,
1.673 + eARIAExpanded, // Currently under spec review but precedent exists
1.674 + eARIAHasPopup, // Note this is technically a "property"
1.675 + eARIAInvalid,
1.676 + eARIARequired, // XXX not global, Bug 553117
1.677 + eARIANone
1.678 +};
1.679 +
1.680 +
1.681 +/**
1.682 + * ARIA attribute map for attribute characteristics.
1.683 + * @note ARIA attributes that don't have any flags are not included here.
1.684 + */
1.685 +
1.686 +struct AttrCharacteristics
1.687 +{
1.688 + nsIAtom** attributeName;
1.689 + const uint8_t characteristics;
1.690 +};
1.691 +
1.692 +static const AttrCharacteristics gWAIUnivAttrMap[] = {
1.693 + {&nsGkAtoms::aria_activedescendant, ATTR_BYPASSOBJ },
1.694 + {&nsGkAtoms::aria_atomic, ATTR_BYPASSOBJ_IF_FALSE | ATTR_VALTOKEN | ATTR_GLOBAL },
1.695 + {&nsGkAtoms::aria_busy, ATTR_VALTOKEN | ATTR_GLOBAL },
1.696 + {&nsGkAtoms::aria_checked, ATTR_BYPASSOBJ | ATTR_VALTOKEN }, /* exposes checkable obj attr */
1.697 + {&nsGkAtoms::aria_controls, ATTR_BYPASSOBJ | ATTR_GLOBAL },
1.698 + {&nsGkAtoms::aria_describedby, ATTR_BYPASSOBJ | ATTR_GLOBAL },
1.699 + {&nsGkAtoms::aria_disabled, ATTR_BYPASSOBJ | ATTR_VALTOKEN | ATTR_GLOBAL },
1.700 + {&nsGkAtoms::aria_dropeffect, ATTR_VALTOKEN | ATTR_GLOBAL },
1.701 + {&nsGkAtoms::aria_expanded, ATTR_BYPASSOBJ | ATTR_VALTOKEN },
1.702 + {&nsGkAtoms::aria_flowto, ATTR_BYPASSOBJ | ATTR_GLOBAL },
1.703 + {&nsGkAtoms::aria_grabbed, ATTR_VALTOKEN | ATTR_GLOBAL },
1.704 + {&nsGkAtoms::aria_haspopup, ATTR_BYPASSOBJ | ATTR_VALTOKEN | ATTR_GLOBAL },
1.705 + {&nsGkAtoms::aria_hidden, ATTR_BYPASSOBJ_IF_FALSE | ATTR_VALTOKEN | ATTR_GLOBAL },
1.706 + {&nsGkAtoms::aria_invalid, ATTR_BYPASSOBJ | ATTR_VALTOKEN | ATTR_GLOBAL },
1.707 + {&nsGkAtoms::aria_label, ATTR_BYPASSOBJ | ATTR_GLOBAL },
1.708 + {&nsGkAtoms::aria_labelledby, ATTR_BYPASSOBJ | ATTR_GLOBAL },
1.709 + {&nsGkAtoms::aria_level, ATTR_BYPASSOBJ }, /* handled via groupPosition */
1.710 + {&nsGkAtoms::aria_live, ATTR_VALTOKEN | ATTR_GLOBAL },
1.711 + {&nsGkAtoms::aria_multiline, ATTR_BYPASSOBJ | ATTR_VALTOKEN },
1.712 + {&nsGkAtoms::aria_multiselectable, ATTR_BYPASSOBJ | ATTR_VALTOKEN },
1.713 + {&nsGkAtoms::aria_owns, ATTR_BYPASSOBJ | ATTR_GLOBAL },
1.714 + {&nsGkAtoms::aria_orientation, ATTR_VALTOKEN },
1.715 + {&nsGkAtoms::aria_posinset, ATTR_BYPASSOBJ }, /* handled via groupPosition */
1.716 + {&nsGkAtoms::aria_pressed, ATTR_BYPASSOBJ | ATTR_VALTOKEN },
1.717 + {&nsGkAtoms::aria_readonly, ATTR_BYPASSOBJ | ATTR_VALTOKEN },
1.718 + {&nsGkAtoms::aria_relevant, ATTR_BYPASSOBJ | ATTR_GLOBAL },
1.719 + {&nsGkAtoms::aria_required, ATTR_BYPASSOBJ | ATTR_VALTOKEN },
1.720 + {&nsGkAtoms::aria_selected, ATTR_BYPASSOBJ | ATTR_VALTOKEN },
1.721 + {&nsGkAtoms::aria_setsize, ATTR_BYPASSOBJ }, /* handled via groupPosition */
1.722 + {&nsGkAtoms::aria_sort, ATTR_VALTOKEN },
1.723 + {&nsGkAtoms::aria_valuenow, ATTR_BYPASSOBJ },
1.724 + {&nsGkAtoms::aria_valuemin, ATTR_BYPASSOBJ },
1.725 + {&nsGkAtoms::aria_valuemax, ATTR_BYPASSOBJ },
1.726 + {&nsGkAtoms::aria_valuetext, ATTR_BYPASSOBJ }
1.727 +};
1.728 +
1.729 +nsRoleMapEntry*
1.730 +aria::GetRoleMap(nsINode* aNode)
1.731 +{
1.732 + nsIContent* content = nsCoreUtils::GetRoleContent(aNode);
1.733 + nsAutoString roles;
1.734 + if (!content ||
1.735 + !content->GetAttr(kNameSpaceID_None, nsGkAtoms::role, roles) ||
1.736 + roles.IsEmpty()) {
1.737 + // We treat role="" as if the role attribute is absent (per aria spec:8.1.1)
1.738 + return nullptr;
1.739 + }
1.740 +
1.741 + nsWhitespaceTokenizer tokenizer(roles);
1.742 + while (tokenizer.hasMoreTokens()) {
1.743 + // Do a binary search through table for the next role in role list
1.744 + const nsDependentSubstring role = tokenizer.nextToken();
1.745 + uint32_t low = 0;
1.746 + uint32_t high = ArrayLength(sWAIRoleMaps);
1.747 + while (low < high) {
1.748 + uint32_t idx = (low + high) / 2;
1.749 + int32_t compare = Compare(role, sWAIRoleMaps[idx].ARIARoleString());
1.750 + if (compare == 0)
1.751 + return sWAIRoleMaps + idx;
1.752 +
1.753 + if (compare < 0)
1.754 + high = idx;
1.755 + else
1.756 + low = idx + 1;
1.757 + }
1.758 + }
1.759 +
1.760 + // Always use some entry if there is a non-empty role string
1.761 + // To ensure an accessible object is created
1.762 + return &sLandmarkRoleMap;
1.763 +}
1.764 +
1.765 +uint64_t
1.766 +aria::UniversalStatesFor(mozilla::dom::Element* aElement)
1.767 +{
1.768 + uint64_t state = 0;
1.769 + uint32_t index = 0;
1.770 + while (MapToState(sWAIUnivStateMap[index], aElement, &state))
1.771 + index++;
1.772 +
1.773 + return state;
1.774 +}
1.775 +
1.776 +uint8_t
1.777 +aria::AttrCharacteristicsFor(nsIAtom* aAtom)
1.778 +{
1.779 + for (uint32_t i = 0; i < ArrayLength(gWAIUnivAttrMap); i++)
1.780 + if (*gWAIUnivAttrMap[i].attributeName == aAtom)
1.781 + return gWAIUnivAttrMap[i].characteristics;
1.782 +
1.783 + return 0;
1.784 +}
1.785 +
1.786 +////////////////////////////////////////////////////////////////////////////////
1.787 +// AttrIterator class
1.788 +
1.789 +bool
1.790 +AttrIterator::Next(nsAString& aAttrName, nsAString& aAttrValue)
1.791 +{
1.792 + while (mAttrIdx < mAttrCount) {
1.793 + const nsAttrName* attr = mContent->GetAttrNameAt(mAttrIdx);
1.794 + mAttrIdx++;
1.795 + if (attr->NamespaceEquals(kNameSpaceID_None)) {
1.796 + nsIAtom* attrAtom = attr->Atom();
1.797 + nsDependentAtomString attrStr(attrAtom);
1.798 + if (!StringBeginsWith(attrStr, NS_LITERAL_STRING("aria-")))
1.799 + continue; // Not ARIA
1.800 +
1.801 + uint8_t attrFlags = aria::AttrCharacteristicsFor(attrAtom);
1.802 + if (attrFlags & ATTR_BYPASSOBJ)
1.803 + continue; // No need to handle exposing as obj attribute here
1.804 +
1.805 + if ((attrFlags & ATTR_VALTOKEN) &&
1.806 + !nsAccUtils::HasDefinedARIAToken(mContent, attrAtom))
1.807 + continue; // only expose token based attributes if they are defined
1.808 +
1.809 + if ((attrFlags & ATTR_BYPASSOBJ_IF_FALSE) &&
1.810 + mContent->AttrValueIs(kNameSpaceID_None, attrAtom,
1.811 + nsGkAtoms::_false, eCaseMatters)) {
1.812 + continue; // only expose token based attribute if value is not 'false'.
1.813 + }
1.814 +
1.815 + nsAutoString value;
1.816 + if (mContent->GetAttr(kNameSpaceID_None, attrAtom, value)) {
1.817 + aAttrName.Assign(Substring(attrStr, 5));
1.818 + aAttrValue.Assign(value);
1.819 + return true;
1.820 + }
1.821 + }
1.822 + }
1.823 +
1.824 + return false;
1.825 +}
1.826 +
