LibWeb: Support the ARIA “sectionheader” & “sectionfooter” roles

Author: https://github.com/sideshowbarker
Commit: https://github.com/LadybirdBrowser/ladybird/commit/1b165d887be
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2932

Libraries/LibWeb/ARIA/AriaRoles.json

@@ -496,6 +496,98 @@
     "childrenArePresentational": false,
     "implicitValueForRole": {}
   },
+  "SectionFooter": {
+    "specLink": "https://w3c.github.io/aria/#sectionfooter",
+    "description": "A set of user interface objects and information representing information about its closest ancestral content group.",
+    "superClassRoles": [
+      "Section"
+    ],
+    "supportedStates": [
+      "aria-busy",
+      "aria-current",
+      "aria-disabled",
+      "aria-grabbed",
+      "aria-hidden",
+      "aria-invalid"
+    ],
+    "supportedProperties": [
+      "aria-atomic",
+      "aria-braillelabel",
+      "aria-brailleroledescription",
+      "aria-controls",
+      "aria-describedby",
+      "aria-description",
+      "aria-details",
+      "aria-dropeffect",
+      "aria-dropeffect",
+      "aria-errormessage",
+      "aria-flowto",
+      "aria-haspopup",
+      "aria-keyshortcuts",
+      "aria-label",
+      "aria-labelledby",
+      "aria-live",
+      "aria-owns",
+      "aria-relevant",
+      "aria-roledescription"
+    ],
+    "requiredStates": [],
+    "requiredProperties": [],
+    "prohibitedStates": [],
+    "prohibitedProperties": [],
+    "requiredContextRoles": [],
+    "requiredOwnedElements": [],
+    "nameFromSource": "Author",
+    "accessibleNameRequired": false,
+    "childrenArePresentational": false,
+    "implicitValueForRole": {}
+  },
+  "SectionHeader": {
+    "specLink": "https://w3c.github.io/aria/#sectionheader",
+    "description": "A set of user interface objects and information that represents a collection of introductory items for the element's closest ancestral content group.",
+    "superClassRoles": [
+      "Section"
+    ],
+    "supportedStates": [
+      "aria-busy",
+      "aria-current",
+      "aria-disabled",
+      "aria-grabbed",
+      "aria-hidden",
+      "aria-invalid"
+    ],
+    "supportedProperties": [
+      "aria-atomic",
+      "aria-braillelabel",
+      "aria-brailleroledescription",
+      "aria-controls",
+      "aria-describedby",
+      "aria-description",
+      "aria-details",
+      "aria-dropeffect",
+      "aria-dropeffect",
+      "aria-errormessage",
+      "aria-flowto",
+      "aria-haspopup",
+      "aria-keyshortcuts",
+      "aria-label",
+      "aria-labelledby",
+      "aria-live",
+      "aria-owns",
+      "aria-relevant",
+      "aria-roledescription"
+    ],
+    "requiredStates": [],
+    "requiredProperties": [],
+    "prohibitedStates": [],
+    "prohibitedProperties": [],
+    "requiredContextRoles": [],
+    "requiredOwnedElements": [],
+    "nameFromSource": "Author",
+    "accessibleNameRequired": false,
+    "childrenArePresentational": false,
+    "implicitValueForRole": {}
+  },
   "Input": {
     "specLink": "https://www.w3.org/TR/wai-aria-1.2/#input",
     "description": "A generic type of widget that allows user input.",

Libraries/LibWeb/ARIA/RoleType.cpp

@@ -282,6 +282,10 @@ ErrorOr<NonnullOwnPtr<RoleType>> RoleType::build_role_object(Role role, bool foc
         return adopt_nonnull_own_or_enomem(new (nothrow) Search(data));
     case Role::searchbox:
         return adopt_nonnull_own_or_enomem(new (nothrow) SearchBox(data));
+    case Role::sectionfooter:
+        return adopt_nonnull_own_or_enomem(new (nothrow) SectionFooter(data));
+    case Role::sectionheader:
+        return adopt_nonnull_own_or_enomem(new (nothrow) SectionHeader(data));
     case Role::separator:
         if (focusable)
             return adopt_nonnull_own_or_enomem(new (nothrow) FocusableSeparator(data));

Libraries/LibWeb/ARIA/Roles.h

@@ -82,7 +82,9 @@ namespace Web::ARIA {
     __ENUMERATE_ARIA_ROLE(search)           \
     __ENUMERATE_ARIA_ROLE(searchbox)        \
     __ENUMERATE_ARIA_ROLE(section)          \
+    __ENUMERATE_ARIA_ROLE(sectionfooter)    \
     __ENUMERATE_ARIA_ROLE(sectionhead)      \
+    __ENUMERATE_ARIA_ROLE(sectionheader)    \
     __ENUMERATE_ARIA_ROLE(select)           \
     __ENUMERATE_ARIA_ROLE(separator)        \
     __ENUMERATE_ARIA_ROLE(slider)           \

Libraries/LibWeb/HTML/HTMLElement.cpp

@@ -766,10 +766,16 @@ Optional<ARIA::Role> HTMLElement::default_role() const
         // complementary, main, navigation or region then (footer) role=contentinfo (header) role=banner. Otherwise,
         // role=generic.
         for (auto const* ancestor = parent_element(); ancestor; ancestor = ancestor->parent_element()) {
-            if (first_is_one_of(ancestor->local_name(), TagNames::article, TagNames::aside, TagNames::main, TagNames::nav, TagNames::section))
-                return ARIA::Role::generic;
-            if (first_is_one_of(ancestor->role_or_default(), ARIA::Role::article, ARIA::Role::complementary, ARIA::Role::main, ARIA::Role::navigation, ARIA::Role::region))
-                return ARIA::Role::generic;
+            if (first_is_one_of(ancestor->local_name(), TagNames::article, TagNames::aside, TagNames::main, TagNames::nav, TagNames::section)) {
+                if (local_name() == TagNames::footer)
+                    return ARIA::Role::sectionfooter;
+                return ARIA::Role::sectionheader;
+            }
+            if (first_is_one_of(ancestor->role_or_default(), ARIA::Role::article, ARIA::Role::complementary, ARIA::Role::main, ARIA::Role::navigation, ARIA::Role::region)) {
+                if (local_name() == TagNames::footer)
+                    return ARIA::Role::sectionfooter;
+                return ARIA::Role::sectionheader;
+            }
         }
         // then (footer) role=contentinfo.
         if (local_name() == TagNames::footer)

Tests/LibWeb/Text/expected/wpt-import/html-aam/roles-contextual.tentative.txt

@@ -0,0 +1,9 @@
+Harness status: OK
+
+Found 4 tests
+
+4 Pass
+Pass	el-footer
+Pass	el-footer-ancestormain
+Pass	el-header
+Pass	el-header-ancestormain

Tests/LibWeb/Text/input/wpt-import/html-aam/roles-contextual.tentative.html

@@ -0,0 +1,36 @@
+<!doctype html>
+<html>
+<head>
+  <title>Tentative: HTML-AAM Contextual-Specific Role Verification Tests</title>
+  <script src="../resources/testharness.js"></script>
+  <script src="../resources/testharnessreport.js"></script>
+  <script src="../resources/testdriver.js"></script>
+  <script src="../resources/testdriver-vendor.js"></script>
+  <script src="../resources/testdriver-actions.js"></script>
+  <script src="../wai-aria/scripts/aria-utils.js"></script>
+</head>
+<body>
+
+<!--
+  New sectionheader and sectionfooter roles.
+  See https://github.com/w3c/aria/pull/1931
+-->
+<nav>
+  <footer data-testname="el-footer" aria-label="x" data-expectedrole="sectionfooter" class="ex">x</aside>
+</nav>
+<main>
+  <footer data-testname="el-footer-ancestormain" data-expectedrole="sectionfooter" class="ex">x</footer>
+</main>
+<nav>
+  <header data-testname="el-header" aria-label="x" data-expectedrole="sectionheader" class="ex">x</header>
+</nav>
+<main>
+  <header data-testname="el-header-ancestormain" data-expectedrole="sectionheader" class="ex">x</header>
+</main>
+
+<script>
+AriaUtils.verifyRolesBySelector(".ex");
+</script>
+
+</body>
+</html>