Merging upstream version 125.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

15 files changed, 384 insertions, 31 deletions

diff --git a/accessible/base/ARIAMap.cpp b/accessible/base/ARIAMap.cpp
index 01cc5d0417..bfc41db82e 100644
--- a/accessible/base/ARIAMap.cpp
+++ b/accessible/base/ARIAMap.cpp
@@ -733,7 +733,7 @@ static const nsRoleMapEntry sWAIRoleMaps[] = {
   },
   { // grid
     nsGkAtoms::grid,
-    roles::TABLE,
+    roles::GRID,
     kUseMapRole,
     eNoValue,
     eNoAction,
@@ -1480,7 +1480,8 @@ const nsRoleMapEntry* aria::GetRoleMap(dom::Element* aEl) {
   return GetRoleMapFromIndex(GetRoleMapIndex(aEl));
 }
 
-uint8_t aria::GetRoleMapIndex(dom::Element* aEl) {
+uint8_t aria::GetFirstValidRoleMapIndexExcluding(
+    dom::Element* aEl, std::initializer_list<nsStaticAtom*> aRolesToSkip) {
   nsAutoString roles;
   if (!aEl || !nsAccUtils::GetARIAAttr(aEl, nsGkAtoms::role, roles) ||
       roles.IsEmpty()) {
@@ -1492,6 +1493,19 @@ uint8_t aria::GetRoleMapIndex(dom::Element* aEl) {
   while (tokenizer.hasMoreTokens()) {
     // Do a binary search through table for the next role in role list
     const nsDependentSubstring role = tokenizer.nextToken();
+
+    // Skip any roles that we aren't interested in.
+    bool shouldSkip = false;
+    for (nsStaticAtom* atomRole : aRolesToSkip) {
+      if (role.Equals(atomRole->GetUTF16String())) {
+        shouldSkip = true;
+        break;
+      }
+    }
+    if (shouldSkip) {
+      continue;
+    }
+
     size_t idx;
     auto comparator = [&role](const nsRoleMapEntry& aEntry) {
       return Compare(role, aEntry.ARIARoleString(),
@@ -1508,6 +1522,11 @@ uint8_t aria::GetRoleMapIndex(dom::Element* aEl) {
   return LANDMARK_ROLE_MAP_ENTRY_INDEX;
 }
 
+uint8_t aria::GetRoleMapIndex(dom::Element* aEl) {
+  // Get the rolemap index of the first valid role, excluding nothing.
+  return GetFirstValidRoleMapIndexExcluding(aEl, {});
+}
+
 const nsRoleMapEntry* aria::GetRoleMapFromIndex(uint8_t aRoleMapIndex) {
   switch (aRoleMapIndex) {
     case NO_ROLE_MAP_ENTRY_INDEX:
diff --git a/accessible/base/ARIAMap.h b/accessible/base/ARIAMap.h
index 30cc1f0814..58a96b7112 100644
--- a/accessible/base/ARIAMap.h
+++ b/accessible/base/ARIAMap.h
@@ -234,6 +234,19 @@ const uint8_t LANDMARK_ROLE_MAP_ENTRY_INDEX = UINT8_MAX;
  */
 const nsRoleMapEntry* GetRoleMap(dom::Element* aEl);
 
+/*
+ * Get the role map entry pointer's index for a given DOM node, skipping any
+ * given roles. This will use the first valid ARIA role if the role attribute
+ * provides a space delimited list of roles, excluding any given roles.
+ *
+ * @param aEl          [in] the DOM node to get the role map entry for
+ * @param aRolesToSkip [in] the roles to skip when searching the role string
+ * @return             the index of the pointer to the role map entry for the
+ *                     ARIA role, or NO_ROLE_MAP_ENTRY_INDEX if none
+ */
+uint8_t GetFirstValidRoleMapIndexExcluding(
+    dom::Element* aEl, std::initializer_list<nsStaticAtom*> aRolesToSkip);
+
 /**
  * Get the role map entry pointer's index for a given DOM node. This will use
  * the first ARIA role if the role attribute provides a space delimited list of
diff --git a/accessible/base/AccGroupInfo.cpp b/accessible/base/AccGroupInfo.cpp
index 3b536b1aa4..c3501dc36e 100644
--- a/accessible/base/AccGroupInfo.cpp
+++ b/accessible/base/AccGroupInfo.cpp
@@ -263,6 +263,7 @@ uint32_t AccGroupInfo::TotalItemCount(Accessible* aContainer,
                                       bool* aIsHierarchical) {
   uint32_t itemCount = 0;
   switch (aContainer->Role()) {
+    case roles::GRID:
     case roles::TABLE:
       if (auto val = aContainer->GetIntARIAAttr(nsGkAtoms::aria_rowcount)) {
         if (*val >= 0) {
diff --git a/accessible/base/AccIterator.cpp b/accessible/base/AccIterator.cpp
index badd34c0d5..d28d5fcbe9 100644
--- a/accessible/base/AccIterator.cpp
+++ b/accessible/base/AccIterator.cpp
@@ -71,7 +71,12 @@ AccIterator::IteratorState::IteratorState(const LocalAccessible* aParent,
 RelatedAccIterator::RelatedAccIterator(DocAccessible* aDocument,
                                        nsIContent* aDependentContent,
                                        nsAtom* aRelAttr)
-    : mDocument(aDocument), mRelAttr(aRelAttr), mProviders(nullptr), mIndex(0) {
+    : mDocument(aDocument),
+      mDependentContent(aDependentContent),
+      mRelAttr(aRelAttr),
+      mProviders(nullptr),
+      mIndex(0),
+      mIsWalkingDependentElements(false) {
   nsAutoString id;
   if (aDependentContent->IsElement() &&
       aDependentContent->AsElement()->GetAttr(nsGkAtoms::id, id)) {
@@ -80,26 +85,57 @@ RelatedAccIterator::RelatedAccIterator(DocAccessible* aDocument,
 }
 
 LocalAccessible* RelatedAccIterator::Next() {
-  if (!mProviders) return nullptr;
+  if (!mProviders || mIndex == mProviders->Length()) {
+    if (mIsWalkingDependentElements) {
+      // We've walked both dependent ids and dependent elements, so there are
+      // no more targets.
+      return nullptr;
+    }
+    // We've returned all dependent ids, but there might be dependent elements
+    // too. Walk those next.
+    mIsWalkingDependentElements = true;
+    mIndex = 0;
+    if (auto providers =
+            mDocument->mDependentElementsMap.Lookup(mDependentContent)) {
+      mProviders = &providers.Data();
+    } else {
+      mProviders = nullptr;
+      return nullptr;
+    }
+  }
 
   while (mIndex < mProviders->Length()) {
     const auto& provider = (*mProviders)[mIndex++];
 
     // Return related accessible for the given attribute.
-    if (provider->mRelAttr == mRelAttr) {
-      LocalAccessible* related = mDocument->GetAccessible(provider->mContent);
-      if (related) {
-        return related;
-      }
+    if (mRelAttr && provider->mRelAttr != mRelAttr) {
+      continue;
+    }
+    // If we're walking elements (not ids), the explicitly set attr-element
+    // `mDependentContent` must be a descendant of any of the refering element
+    // `mProvider->mContent`'s shadow-including ancestors.
+    if (mIsWalkingDependentElements &&
+        !nsCoreUtils::IsDescendantOfAnyShadowIncludingAncestor(
+            mDependentContent, provider->mContent)) {
+      continue;
+    }
+    LocalAccessible* related = mDocument->GetAccessible(provider->mContent);
+    if (related) {
+      return related;
+    }
 
-      // If the document content is pointed by relation then return the
-      // document itself.
-      if (provider->mContent == mDocument->GetContent()) {
-        return mDocument;
-      }
+    // If the document content is pointed by relation then return the
+    // document itself.
+    if (provider->mContent == mDocument->GetContent()) {
+      return mDocument;
     }
   }
 
+  // We exhausted mProviders without returning anything.
+  if (!mIsWalkingDependentElements) {
+    // Call this function again to start walking the dependent elements.
+    return Next();
+  }
   return nullptr;
 }
 
diff --git a/accessible/base/AccIterator.h b/accessible/base/AccIterator.h
index 463e3e9d3e..61b126c812 100644
--- a/accessible/base/AccIterator.h
+++ b/accessible/base/AccIterator.h
@@ -67,7 +67,9 @@ class AccIterator : public AccIterable {
 
 /**
  * Allows to traverse through related accessibles that are pointing to the given
- * dependent accessible by relation attribute.
+ * dependent accessible by relation attribute. This is typically used to query
+ * implicit reverse relations; e.g. calculating the LABEL_FOR relation for a
+ * label where that label was referenced using aria-labelledby.
  */
 class RelatedAccIterator : public AccIterable {
  public:
@@ -79,7 +81,7 @@ class RelatedAccIterator : public AccIterable {
    * @param aDependentContent [in] the content of dependent accessible that
    *                           relations were requested for
    * @param aRelAttr          [in] relation attribute that relations are
-   *                           pointed by
+   *                           pointed by, null for all relations
    */
   RelatedAccIterator(DocAccessible* aDocument, nsIContent* aDependentContent,
                      nsAtom* aRelAttr);
@@ -97,9 +99,11 @@ class RelatedAccIterator : public AccIterable {
   RelatedAccIterator& operator=(const RelatedAccIterator&);
 
   DocAccessible* mDocument;
+  nsIContent* mDependentContent;
   nsAtom* mRelAttr;
   DocAccessible::AttrRelProviders* mProviders;
   uint32_t mIndex;
+  bool mIsWalkingDependentElements;
 };
 
 /**
diff --git a/accessible/base/Asserts.cpp b/accessible/base/Asserts.cpp
index efdd733d9b..729b4e1ea5 100644
--- a/accessible/base/Asserts.cpp
+++ b/accessible/base/Asserts.cpp
@@ -12,7 +12,7 @@
 using namespace mozilla::a11y;
 
 #define ROLE(geckoRole, stringRole, ariaRole, atkRole, macRole, macSubrole, \
-             msaaRole, ia2Role, androidClass, nameRule)                     \
+             msaaRole, ia2Role, androidClass, iosIsElement, nameRule)       \
   static_assert(                                                            \
       static_cast<uint32_t>(roles::geckoRole) ==                            \
           static_cast<uint32_t>(nsIAccessibleRole::ROLE_##geckoRole),       \
diff --git a/accessible/base/HTMLMarkupMap.h b/accessible/base/HTMLMarkupMap.h
index b903097ea0..c607616518 100644
--- a/accessible/base/HTMLMarkupMap.h
+++ b/accessible/base/HTMLMarkupMap.h
@@ -34,7 +34,12 @@ MARKUPMAP(address, New_HyperText, roles::GROUPING)
 
 MARKUPMAP(article, New_HyperText, roles::ARTICLE, Attr(xmlroles, article))
 
-MARKUPMAP(aside, New_HyperText, roles::LANDMARK)
+MARKUPMAP(
+    aside,
+    [](Element* aElement, LocalAccessible* aContext) -> LocalAccessible* {
+      return new HTMLAsideAccessible(aElement, aContext->Document());
+    },
+    0)
 
 MARKUPMAP(blockquote, New_HyperText, roles::BLOCKQUOTE)
 
diff --git a/accessible/base/Platform.h b/accessible/base/Platform.h
index 23f214246f..68529d176a 100644
--- a/accessible/base/Platform.h
+++ b/accessible/base/Platform.h
@@ -47,10 +47,10 @@ EPlatformDisabledState PlatformDisabledState();
 void PreInit();
 #endif
 
-#if defined(MOZ_ACCESSIBILITY_ATK) || defined(XP_MACOSX)
+#if defined(MOZ_ACCESSIBILITY_ATK) || defined(XP_DARWIN)
 /**
  * Is platform accessibility enabled.
- * Only used on linux with atk and MacOS for now.
+ * Only used on Linux, MacOS and iOS for now.
  */
 bool ShouldA11yBeEnabled();
 #endif
diff --git a/accessible/base/RoleMap.h b/accessible/base/RoleMap.h
index ce82000188..58cbb82165 100644
--- a/accessible/base/RoleMap.h
+++ b/accessible/base/RoleMap.h
@@ -17,6 +17,7 @@ ROLE(NOTHING,
      ROLE_SYSTEM_CLIENT,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::No,
      eNameFromSubtreeIfReqRule)
 
 ROLE(MENUBAR,
@@ -28,6 +29,7 @@ ROLE(MENUBAR,
      ROLE_SYSTEM_MENUBAR,
      ROLE_SYSTEM_MENUBAR,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(SCROLLBAR,
@@ -39,6 +41,7 @@ ROLE(SCROLLBAR,
      ROLE_SYSTEM_SCROLLBAR,
      ROLE_SYSTEM_SCROLLBAR,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromValueRule)
 
 ROLE(ALERT,
@@ -50,6 +53,7 @@ ROLE(ALERT,
      ROLE_SYSTEM_ALERT,
      ROLE_SYSTEM_ALERT,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(INTERNAL_FRAME,
@@ -61,6 +65,7 @@ ROLE(INTERNAL_FRAME,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_INTERNAL_FRAME,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MENUPOPUP,
@@ -72,6 +77,7 @@ ROLE(MENUPOPUP,
      ROLE_SYSTEM_MENUPOPUP,
      ROLE_SYSTEM_MENUPOPUP,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MENUITEM,
@@ -83,6 +89,7 @@ ROLE(MENUITEM,
      ROLE_SYSTEM_MENUITEM,
      ROLE_SYSTEM_MENUITEM,
      java::SessionAccessibility::CLASSNAME_MENUITEM,
+     IsAccessibilityElementRule::Yes,
      eNameFromSubtreeRule)
 
 ROLE(TOOLTIP,
@@ -94,6 +101,7 @@ ROLE(TOOLTIP,
      ROLE_SYSTEM_TOOLTIP,
      ROLE_SYSTEM_TOOLTIP,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::Yes,
      eNameFromSubtreeRule)
 
 ROLE(APPLICATION,
@@ -105,6 +113,7 @@ ROLE(APPLICATION,
      ROLE_SYSTEM_APPLICATION,
      ROLE_SYSTEM_APPLICATION,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(DOCUMENT,
@@ -116,6 +125,7 @@ ROLE(DOCUMENT,
      ROLE_SYSTEM_DOCUMENT,
      ROLE_SYSTEM_DOCUMENT,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 /**
@@ -136,6 +146,7 @@ ROLE(PANE,
      ROLE_SYSTEM_GROUPING,
      ROLE_SYSTEM_GROUPING,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(DIALOG,
@@ -147,6 +158,7 @@ ROLE(DIALOG,
      ROLE_SYSTEM_DIALOG,
      ROLE_SYSTEM_DIALOG,
      java::SessionAccessibility::CLASSNAME_DIALOG,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(GROUPING,
@@ -158,6 +170,7 @@ ROLE(GROUPING,
      ROLE_SYSTEM_GROUPING,
      ROLE_SYSTEM_GROUPING,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(SEPARATOR,
@@ -169,6 +182,7 @@ ROLE(SEPARATOR,
      ROLE_SYSTEM_SEPARATOR,
      ROLE_SYSTEM_SEPARATOR,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::Yes,
      eNoNameRule)
 
 ROLE(TOOLBAR,
@@ -180,6 +194,7 @@ ROLE(TOOLBAR,
      ROLE_SYSTEM_TOOLBAR,
      ROLE_SYSTEM_TOOLBAR,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(STATUSBAR,
@@ -191,6 +206,7 @@ ROLE(STATUSBAR,
      ROLE_SYSTEM_STATUSBAR,
      ROLE_SYSTEM_STATUSBAR,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(TABLE,
@@ -202,6 +218,7 @@ ROLE(TABLE,
      ROLE_SYSTEM_TABLE,
      ROLE_SYSTEM_TABLE,
      java::SessionAccessibility::CLASSNAME_GRIDVIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(COLUMNHEADER,
@@ -213,6 +230,7 @@ ROLE(COLUMNHEADER,
      ROLE_SYSTEM_COLUMNHEADER,
      ROLE_SYSTEM_COLUMNHEADER,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeRule)
 
 ROLE(ROWHEADER,
@@ -224,6 +242,7 @@ ROLE(ROWHEADER,
      ROLE_SYSTEM_ROWHEADER,
      ROLE_SYSTEM_ROWHEADER,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeRule)
 
 ROLE(ROW,
@@ -235,6 +254,7 @@ ROLE(ROW,
      ROLE_SYSTEM_ROW,
      ROLE_SYSTEM_ROW,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeRule)
 
 ROLE(CELL,
@@ -246,6 +266,7 @@ ROLE(CELL,
      ROLE_SYSTEM_CELL,
      ROLE_SYSTEM_CELL,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(LINK,
@@ -257,6 +278,7 @@ ROLE(LINK,
      ROLE_SYSTEM_LINK,
      ROLE_SYSTEM_LINK,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfBrokenUp,
      eNameFromSubtreeRule)
 
 ROLE(LIST,
@@ -268,6 +290,7 @@ ROLE(LIST,
      ROLE_SYSTEM_LIST,
      ROLE_SYSTEM_LIST,
      java::SessionAccessibility::CLASSNAME_LISTVIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(LISTITEM,
@@ -279,6 +302,7 @@ ROLE(LISTITEM,
      ROLE_SYSTEM_LISTITEM,
      ROLE_SYSTEM_LISTITEM,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeRule)
 
 ROLE(OUTLINE,
@@ -290,6 +314,7 @@ ROLE(OUTLINE,
      ROLE_SYSTEM_OUTLINE,
      ROLE_SYSTEM_OUTLINE,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(OUTLINEITEM,
@@ -301,6 +326,7 @@ ROLE(OUTLINEITEM,
      ROLE_SYSTEM_OUTLINEITEM,
      ROLE_SYSTEM_OUTLINEITEM,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeRule)
 
 ROLE(PAGETAB,
@@ -312,6 +338,7 @@ ROLE(PAGETAB,
      ROLE_SYSTEM_PAGETAB,
      ROLE_SYSTEM_PAGETAB,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::Yes,
      eNameFromSubtreeRule)
 
 ROLE(PROPERTYPAGE,
@@ -323,6 +350,7 @@ ROLE(PROPERTYPAGE,
      ROLE_SYSTEM_PROPERTYPAGE,
      ROLE_SYSTEM_PROPERTYPAGE,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(GRAPHIC,
@@ -334,6 +362,7 @@ ROLE(GRAPHIC,
      ROLE_SYSTEM_GRAPHIC,
      ROLE_SYSTEM_GRAPHIC,
      java::SessionAccessibility::CLASSNAME_IMAGE,
+     IsAccessibilityElementRule::Yes,
      eNoNameRule)
 
 ROLE(STATICTEXT,
@@ -345,6 +374,7 @@ ROLE(STATICTEXT,
      ROLE_SYSTEM_STATICTEXT,
      ROLE_SYSTEM_STATICTEXT,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfParentIsntElementWithName,
      eNoNameRule)
 
 ROLE(TEXT_LEAF,
@@ -356,6 +386,7 @@ ROLE(TEXT_LEAF,
      ROLE_SYSTEM_TEXT,
      ROLE_SYSTEM_TEXT,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfParentIsntElementWithName,
      eNoNameRule)
 
 ROLE(PUSHBUTTON,
@@ -367,6 +398,7 @@ ROLE(PUSHBUTTON,
      ROLE_SYSTEM_PUSHBUTTON,
      ROLE_SYSTEM_PUSHBUTTON,
      java::SessionAccessibility::CLASSNAME_BUTTON,
+     IsAccessibilityElementRule::Yes,
      eNameFromSubtreeRule)
 
 ROLE(CHECKBUTTON,
@@ -378,6 +410,7 @@ ROLE(CHECKBUTTON,
      ROLE_SYSTEM_CHECKBUTTON,
      ROLE_SYSTEM_CHECKBUTTON,
      java::SessionAccessibility::CLASSNAME_CHECKBOX,
+     IsAccessibilityElementRule::Yes,
      eNameFromSubtreeRule)
 
 ROLE(RADIOBUTTON,
@@ -389,6 +422,7 @@ ROLE(RADIOBUTTON,
      ROLE_SYSTEM_RADIOBUTTON,
      ROLE_SYSTEM_RADIOBUTTON,
      java::SessionAccessibility::CLASSNAME_RADIOBUTTON,
+     IsAccessibilityElementRule::Yes,
      eNameFromSubtreeRule)
 
 // Equivalent of HTML select element with size="1". See also EDITCOMBOBOX.
@@ -401,6 +435,7 @@ ROLE(COMBOBOX,
      ROLE_SYSTEM_COMBOBOX,
      ROLE_SYSTEM_COMBOBOX,
      java::SessionAccessibility::CLASSNAME_SPINNER,
+     IsAccessibilityElementRule::Yes,
      eNameFromValueRule)
 
 ROLE(PROGRESSBAR,
@@ -412,6 +447,7 @@ ROLE(PROGRESSBAR,
      ROLE_SYSTEM_PROGRESSBAR,
      ROLE_SYSTEM_PROGRESSBAR,
      java::SessionAccessibility::CLASSNAME_PROGRESSBAR,
+     IsAccessibilityElementRule::Yes,
      eNameFromValueRule)
 
 ROLE(SLIDER,
@@ -423,6 +459,7 @@ ROLE(SLIDER,
      ROLE_SYSTEM_SLIDER,
      ROLE_SYSTEM_SLIDER,
      java::SessionAccessibility::CLASSNAME_SEEKBAR,
+     IsAccessibilityElementRule::Yes,
      eNameFromValueRule)
 
 ROLE(SPINBUTTON,
@@ -434,6 +471,7 @@ ROLE(SPINBUTTON,
      ROLE_SYSTEM_SPINBUTTON,
      ROLE_SYSTEM_SPINBUTTON,
      java::SessionAccessibility::CLASSNAME_EDITTEXT,
+     IsAccessibilityElementRule::Yes,
      eNameFromValueRule)
 
 ROLE(DIAGRAM,
@@ -445,6 +483,7 @@ ROLE(DIAGRAM,
      ROLE_SYSTEM_DIAGRAM,
      ROLE_SYSTEM_DIAGRAM,
      java::SessionAccessibility::CLASSNAME_IMAGE,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(ANIMATION,
@@ -456,6 +495,7 @@ ROLE(ANIMATION,
      ROLE_SYSTEM_ANIMATION,
      ROLE_SYSTEM_ANIMATION,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(BUTTONDROPDOWN,
@@ -467,6 +507,7 @@ ROLE(BUTTONDROPDOWN,
      ROLE_SYSTEM_BUTTONDROPDOWN,
      ROLE_SYSTEM_BUTTONDROPDOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::Yes,
      eNameFromSubtreeRule)
 
 ROLE(BUTTONMENU,
@@ -478,6 +519,7 @@ ROLE(BUTTONMENU,
      ROLE_SYSTEM_BUTTONMENU,
      ROLE_SYSTEM_BUTTONMENU,
      java::SessionAccessibility::CLASSNAME_SPINNER,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeRule)
 
 ROLE(WHITESPACE,
@@ -489,6 +531,7 @@ ROLE(WHITESPACE,
      ROLE_SYSTEM_WHITESPACE,
      ROLE_SYSTEM_WHITESPACE,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::No,
      eNoNameRule)
 
 ROLE(PAGETABLIST,
@@ -500,6 +543,7 @@ ROLE(PAGETABLIST,
      ROLE_SYSTEM_PAGETABLIST,
      ROLE_SYSTEM_PAGETABLIST,
      java::SessionAccessibility::CLASSNAME_TABWIDGET,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(CANVAS,
@@ -511,6 +555,7 @@ ROLE(CANVAS,
      ROLE_SYSTEM_GRAPHIC,
      IA2_ROLE_CANVAS,
      java::SessionAccessibility::CLASSNAME_IMAGE,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(CHECK_MENU_ITEM,
@@ -522,6 +567,7 @@ ROLE(CHECK_MENU_ITEM,
      ROLE_SYSTEM_MENUITEM,
      IA2_ROLE_CHECK_MENU_ITEM,
      java::SessionAccessibility::CLASSNAME_MENUITEM,
+     IsAccessibilityElementRule::Yes,
      eNameFromSubtreeRule)
 
 ROLE(DATE_EDITOR,
@@ -533,6 +579,7 @@ ROLE(DATE_EDITOR,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_DATE_EDITOR,
      java::SessionAccessibility::CLASSNAME_SPINNER,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(CHROME_WINDOW,
@@ -544,6 +591,7 @@ ROLE(CHROME_WINDOW,
      ROLE_SYSTEM_APPLICATION,
      IA2_ROLE_FRAME,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(LABEL,
@@ -555,6 +603,7 @@ ROLE(LABEL,
      ROLE_SYSTEM_STATICTEXT,
      IA2_ROLE_LABEL,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeRule)
 
 ROLE(PASSWORD_TEXT,
@@ -566,6 +615,7 @@ ROLE(PASSWORD_TEXT,
      ROLE_SYSTEM_TEXT,
      ROLE_SYSTEM_TEXT,
      java::SessionAccessibility::CLASSNAME_EDITTEXT,
+     IsAccessibilityElementRule::Yes,
      eNoNameRule)
 
 ROLE(RADIO_MENU_ITEM,
@@ -577,6 +627,7 @@ ROLE(RADIO_MENU_ITEM,
      ROLE_SYSTEM_MENUITEM,
      IA2_ROLE_RADIO_MENU_ITEM,
      java::SessionAccessibility::CLASSNAME_MENUITEM,
+     IsAccessibilityElementRule::Yes,
      eNameFromSubtreeRule)
 
 ROLE(TEXT_CONTAINER,
@@ -588,6 +639,7 @@ ROLE(TEXT_CONTAINER,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_TEXT_FRAME,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(TOGGLE_BUTTON,
@@ -599,6 +651,7 @@ ROLE(TOGGLE_BUTTON,
      ROLE_SYSTEM_PUSHBUTTON,
      IA2_ROLE_TOGGLE_BUTTON,
      java::SessionAccessibility::CLASSNAME_TOGGLEBUTTON,
+     IsAccessibilityElementRule::Yes,
      eNameFromSubtreeRule)
 
 ROLE(TREE_TABLE,
@@ -610,6 +663,7 @@ ROLE(TREE_TABLE,
      ROLE_SYSTEM_OUTLINE,
      ROLE_SYSTEM_OUTLINE,
      java::SessionAccessibility::CLASSNAME_GRIDVIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(PARAGRAPH,
@@ -621,6 +675,7 @@ ROLE(PARAGRAPH,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_PARAGRAPH,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(ENTRY,
@@ -632,6 +687,7 @@ ROLE(ENTRY,
      ROLE_SYSTEM_TEXT,
      ROLE_SYSTEM_TEXT,
      java::SessionAccessibility::CLASSNAME_EDITTEXT,
+     IsAccessibilityElementRule::Yes,
      eNameFromValueRule)
 
 ROLE(CAPTION,
@@ -643,6 +699,7 @@ ROLE(CAPTION,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_CAPTION,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(NON_NATIVE_DOCUMENT,
@@ -654,6 +711,7 @@ ROLE(NON_NATIVE_DOCUMENT,
      ROLE_SYSTEM_DOCUMENT,
      ROLE_SYSTEM_DOCUMENT,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(HEADING,
@@ -665,6 +723,7 @@ ROLE(HEADING,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_HEADING,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildless,
      eNameFromSubtreeRule)
 
 ROLE(SECTION,
@@ -676,6 +735,7 @@ ROLE(SECTION,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_SECTION,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(FORM,
@@ -687,6 +747,7 @@ ROLE(FORM,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_FORM,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(APP_ROOT,
@@ -698,6 +759,7 @@ ROLE(APP_ROOT,
      ROLE_SYSTEM_APPLICATION,
      ROLE_SYSTEM_APPLICATION,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(PARENT_MENUITEM,
@@ -709,6 +771,7 @@ ROLE(PARENT_MENUITEM,
      ROLE_SYSTEM_MENUITEM,
      ROLE_SYSTEM_MENUITEM,
      java::SessionAccessibility::CLASSNAME_MENUITEM,
+     IsAccessibilityElementRule::Yes,
      eNameFromSubtreeRule)
 
 ROLE(COMBOBOX_LIST,
@@ -720,6 +783,7 @@ ROLE(COMBOBOX_LIST,
      ROLE_SYSTEM_LIST,
      ROLE_SYSTEM_LIST,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::No,
      eNoNameRule)
 
 ROLE(COMBOBOX_OPTION,
@@ -731,6 +795,7 @@ ROLE(COMBOBOX_OPTION,
      ROLE_SYSTEM_LISTITEM,
      ROLE_SYSTEM_LISTITEM,
      java::SessionAccessibility::CLASSNAME_MENUITEM,
+     IsAccessibilityElementRule::Yes,
      eNameFromSubtreeRule)
 
 ROLE(IMAGE_MAP,
@@ -742,6 +807,7 @@ ROLE(IMAGE_MAP,
      ROLE_SYSTEM_GRAPHIC,
      ROLE_SYSTEM_GRAPHIC,
      java::SessionAccessibility::CLASSNAME_IMAGE,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(OPTION,
@@ -753,6 +819,7 @@ ROLE(OPTION,
      ROLE_SYSTEM_LISTITEM,
      ROLE_SYSTEM_LISTITEM,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::Yes,
      eNameFromSubtreeRule)
 
 ROLE(RICH_OPTION,
@@ -764,6 +831,7 @@ ROLE(RICH_OPTION,
      ROLE_SYSTEM_LISTITEM,
      ROLE_SYSTEM_LISTITEM,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeRule)
 
 ROLE(LISTBOX,
@@ -775,7 +843,8 @@ ROLE(LISTBOX,
      ROLE_SYSTEM_LIST,
      ROLE_SYSTEM_LIST,
      java::SessionAccessibility::CLASSNAME_LISTVIEW,
-     eNoNameRule)
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
+     eNameFromValueRule)
 
 ROLE(FLAT_EQUATION,
      "flat equation",
@@ -786,6 +855,7 @@ ROLE(FLAT_EQUATION,
      ROLE_SYSTEM_EQUATION,
      ROLE_SYSTEM_EQUATION,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::Yes,
      eNoNameRule)
 
 ROLE(GRID_CELL,
@@ -797,6 +867,7 @@ ROLE(GRID_CELL,
      ROLE_SYSTEM_CELL,
      ROLE_SYSTEM_CELL,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeRule)
 
 ROLE(NOTE,
@@ -808,6 +879,7 @@ ROLE(NOTE,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_NOTE,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(FIGURE,
@@ -819,6 +891,7 @@ ROLE(FIGURE,
      ROLE_SYSTEM_GROUPING,
      ROLE_SYSTEM_GROUPING,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(CHECK_RICH_OPTION,
@@ -830,6 +903,7 @@ ROLE(CHECK_RICH_OPTION,
      ROLE_SYSTEM_CHECKBUTTON,
      ROLE_SYSTEM_CHECKBUTTON,
      java::SessionAccessibility::CLASSNAME_CHECKBOX,
+     IsAccessibilityElementRule::Yes,
      eNameFromSubtreeRule)
 
 ROLE(DEFINITION_LIST,
@@ -841,6 +915,7 @@ ROLE(DEFINITION_LIST,
      ROLE_SYSTEM_LIST,
      ROLE_SYSTEM_LIST,
      java::SessionAccessibility::CLASSNAME_LISTVIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(TERM,
@@ -852,6 +927,7 @@ ROLE(TERM,
      ROLE_SYSTEM_LISTITEM,
      ROLE_SYSTEM_LISTITEM,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeRule)
 
 ROLE(DEFINITION,
@@ -863,6 +939,7 @@ ROLE(DEFINITION,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_PARAGRAPH,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeRule)
 
 ROLE(KEY,
@@ -874,6 +951,7 @@ ROLE(KEY,
      ROLE_SYSTEM_PUSHBUTTON,
      ROLE_SYSTEM_PUSHBUTTON,
      java::SessionAccessibility::CLASSNAME_BUTTON,
+     IsAccessibilityElementRule::Yes,
      eNameFromSubtreeRule)
 
 ROLE(SWITCH,
@@ -885,6 +963,7 @@ ROLE(SWITCH,
      ROLE_SYSTEM_CHECKBUTTON,
      IA2_ROLE_TOGGLE_BUTTON,
      java::SessionAccessibility::CLASSNAME_CHECKBOX,
+     IsAccessibilityElementRule::Yes,
      eNameFromSubtreeRule)
 
 ROLE(MATHML_MATH,
@@ -896,6 +975,7 @@ ROLE(MATHML_MATH,
      ROLE_SYSTEM_EQUATION,
      ROLE_SYSTEM_EQUATION,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_IDENTIFIER,
@@ -907,6 +987,7 @@ ROLE(MATHML_IDENTIFIER,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeRule)
 
 ROLE(MATHML_NUMBER,
@@ -918,6 +999,7 @@ ROLE(MATHML_NUMBER,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeRule)
 
 ROLE(MATHML_OPERATOR,
@@ -934,6 +1016,7 @@ ROLE(MATHML_OPERATOR,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeRule)
 
 ROLE(MATHML_TEXT,
@@ -945,6 +1028,7 @@ ROLE(MATHML_TEXT,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeRule)
 
 ROLE(MATHML_STRING_LITERAL,
@@ -956,6 +1040,7 @@ ROLE(MATHML_STRING_LITERAL,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeRule)
 
 ROLE(MATHML_GLYPH,
@@ -967,6 +1052,7 @@ ROLE(MATHML_GLYPH,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_IMAGE,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeRule)
 
 ROLE(MATHML_ROW,
@@ -978,6 +1064,7 @@ ROLE(MATHML_ROW,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_FRACTION,
@@ -989,6 +1076,7 @@ ROLE(MATHML_FRACTION,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_SQUARE_ROOT,
@@ -1000,6 +1088,7 @@ ROLE(MATHML_SQUARE_ROOT,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_ROOT,
@@ -1011,6 +1100,7 @@ ROLE(MATHML_ROOT,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_ENCLOSED,
@@ -1022,6 +1112,7 @@ ROLE(MATHML_ENCLOSED,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_STYLE,
@@ -1033,6 +1124,7 @@ ROLE(MATHML_STYLE,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_SUB,
@@ -1044,6 +1136,7 @@ ROLE(MATHML_SUB,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_SUP,
@@ -1055,6 +1148,7 @@ ROLE(MATHML_SUP,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_SUB_SUP,
@@ -1066,6 +1160,7 @@ ROLE(MATHML_SUB_SUP,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_UNDER,
@@ -1077,6 +1172,7 @@ ROLE(MATHML_UNDER,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_OVER,
@@ -1088,6 +1184,7 @@ ROLE(MATHML_OVER,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_UNDER_OVER,
@@ -1099,6 +1196,7 @@ ROLE(MATHML_UNDER_OVER,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_MULTISCRIPTS,
@@ -1110,6 +1208,7 @@ ROLE(MATHML_MULTISCRIPTS,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_TABLE,
@@ -1121,6 +1220,7 @@ ROLE(MATHML_TABLE,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_GRIDVIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_LABELED_ROW,
@@ -1132,6 +1232,7 @@ ROLE(MATHML_LABELED_ROW,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_TABLE_ROW,
@@ -1143,6 +1244,7 @@ ROLE(MATHML_TABLE_ROW,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_CELL,
@@ -1154,6 +1256,7 @@ ROLE(MATHML_CELL,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_ACTION,
@@ -1165,6 +1268,7 @@ ROLE(MATHML_ACTION,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_ERROR,
@@ -1176,6 +1280,7 @@ ROLE(MATHML_ERROR,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_STACK,
@@ -1187,6 +1292,7 @@ ROLE(MATHML_STACK,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_LONG_DIVISION,
@@ -1198,6 +1304,7 @@ ROLE(MATHML_LONG_DIVISION,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_STACK_GROUP,
@@ -1209,6 +1316,7 @@ ROLE(MATHML_STACK_GROUP,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_STACK_ROW,
@@ -1220,6 +1328,7 @@ ROLE(MATHML_STACK_ROW,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_STACK_CARRIES,
@@ -1231,6 +1340,7 @@ ROLE(MATHML_STACK_CARRIES,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_STACK_CARRY,
@@ -1242,6 +1352,7 @@ ROLE(MATHML_STACK_CARRY,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MATHML_STACK_LINE,
@@ -1253,6 +1364,7 @@ ROLE(MATHML_STACK_LINE,
      0,
      IA2_ROLE_UNKNOWN,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(RADIO_GROUP,
@@ -1264,6 +1376,7 @@ ROLE(RADIO_GROUP,
      ROLE_SYSTEM_GROUPING,
      ROLE_SYSTEM_GROUPING,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(TEXT,
@@ -1275,6 +1388,7 @@ ROLE(TEXT,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_TEXT_FRAME,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(DETAILS,
@@ -1286,6 +1400,7 @@ ROLE(DETAILS,
      ROLE_SYSTEM_GROUPING,
      ROLE_SYSTEM_GROUPING,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(SUMMARY,
@@ -1297,6 +1412,7 @@ ROLE(SUMMARY,
      ROLE_SYSTEM_PUSHBUTTON,
      ROLE_SYSTEM_PUSHBUTTON,
      java::SessionAccessibility::CLASSNAME_BUTTON,
+     IsAccessibilityElementRule::Yes,
      eNameFromSubtreeRule)
 
 ROLE(LANDMARK,
@@ -1308,6 +1424,7 @@ ROLE(LANDMARK,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_LANDMARK,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(NAVIGATION,
@@ -1319,6 +1436,7 @@ ROLE(NAVIGATION,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_LANDMARK,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(FOOTNOTE,
@@ -1330,6 +1448,7 @@ ROLE(FOOTNOTE,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_FOOTNOTE,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(ARTICLE,
@@ -1341,6 +1460,7 @@ ROLE(ARTICLE,
      ROLE_SYSTEM_DOCUMENT,
      ROLE_SYSTEM_DOCUMENT,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(REGION,
@@ -1352,6 +1472,7 @@ ROLE(REGION,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_LANDMARK,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 // A composite widget with a text input and popup. Used for ARIA role combobox.
@@ -1365,6 +1486,7 @@ ROLE(EDITCOMBOBOX,
      ROLE_SYSTEM_COMBOBOX,
      ROLE_SYSTEM_COMBOBOX,
      java::SessionAccessibility::CLASSNAME_EDITTEXT,
+     IsAccessibilityElementRule::Yes,
      eNameFromValueRule)
 
 ROLE(BLOCKQUOTE,
@@ -1376,6 +1498,7 @@ ROLE(BLOCKQUOTE,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_BLOCK_QUOTE,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(CONTENT_DELETION,
@@ -1387,6 +1510,7 @@ ROLE(CONTENT_DELETION,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_CONTENT_DELETION,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(CONTENT_INSERTION,
@@ -1398,6 +1522,7 @@ ROLE(CONTENT_INSERTION,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_CONTENT_INSERTION,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(FORM_LANDMARK,
@@ -1409,6 +1534,7 @@ ROLE(FORM_LANDMARK,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_FORM,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(MARK,
@@ -1420,6 +1546,7 @@ ROLE(MARK,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_MARK,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(SUGGESTION,
@@ -1431,6 +1558,7 @@ ROLE(SUGGESTION,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_SUGGESTION,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(COMMENT,
@@ -1442,6 +1570,7 @@ ROLE(COMMENT,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_COMMENT,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(CODE,
@@ -1453,6 +1582,7 @@ ROLE(CODE,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_TEXT_FRAME,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(TIME_EDITOR,
@@ -1464,6 +1594,7 @@ ROLE(TIME_EDITOR,
      ROLE_SYSTEM_GROUPING,
      ROLE_SYSTEM_GROUPING,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(LISTITEM_MARKER,
@@ -1475,6 +1606,7 @@ ROLE(LISTITEM_MARKER,
      ROLE_SYSTEM_STATICTEXT,
      ROLE_SYSTEM_STATICTEXT,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNoNameRule)
 
 ROLE(METER,
@@ -1486,6 +1618,7 @@ ROLE(METER,
      ROLE_SYSTEM_PROGRESSBAR,
      ROLE_SYSTEM_PROGRESSBAR,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::Yes,
      eNameFromValueRule)
 
 ROLE(SUBSCRIPT,
@@ -1497,6 +1630,7 @@ ROLE(SUBSCRIPT,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_TEXT_FRAME,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(SUPERSCRIPT,
@@ -1508,6 +1642,7 @@ ROLE(SUPERSCRIPT,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_TEXT_FRAME,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(EMPHASIS,
@@ -1519,6 +1654,7 @@ ROLE(EMPHASIS,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_TEXT_FRAME,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(STRONG,
@@ -1530,6 +1666,7 @@ ROLE(STRONG,
      ROLE_SYSTEM_GROUPING,
      IA2_ROLE_TEXT_FRAME,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
 ROLE(TIME,
@@ -1541,6 +1678,18 @@ ROLE(TIME,
      ROLE_SYSTEM_GROUPING,
      ROLE_SYSTEM_GROUPING,
      java::SessionAccessibility::CLASSNAME_VIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
      eNameFromSubtreeIfReqRule)
 
+ROLE(GRID,
+     "grid",
+     nsGkAtoms::grid,
+     ATK_ROLE_TABLE,
+     NSAccessibilityTableRole,
+     NSAccessibilityUnknownSubrole,
+     ROLE_SYSTEM_TABLE,
+     ROLE_SYSTEM_TABLE,
+     java::SessionAccessibility::CLASSNAME_GRIDVIEW,
+     IsAccessibilityElementRule::IfChildlessWithNameAndFocusable,
+     eNameFromSubtreeIfReqRule)
 // clang-format on
diff --git a/accessible/base/moz.build b/accessible/base/moz.build
index b65c90ceba..de8e75f0e1 100644
--- a/accessible/base/moz.build
+++ b/accessible/base/moz.build
@@ -112,6 +112,10 @@ elif CONFIG["MOZ_WIDGET_TOOLKIT"] == "android":
     LOCAL_INCLUDES += [
         "/accessible/android",
     ]
+elif CONFIG["MOZ_WIDGET_TOOLKIT"] == "uikit":
+    LOCAL_INCLUDES += [
+        "/accessible/ios",
+    ]
 else:
     LOCAL_INCLUDES += [
         "/accessible/other",
diff --git a/accessible/base/nsAccessibilityService.cpp b/accessible/base/nsAccessibilityService.cpp
index c31dd666ce..d38276572b 100644
--- a/accessible/base/nsAccessibilityService.cpp
+++ b/accessible/base/nsAccessibilityService.cpp
@@ -606,6 +606,24 @@ void nsAccessibilityService::NotifyOfDevPixelRatioChange(
   }
 }
 
+void nsAccessibilityService::NotifyAttrElementWillChange(
+    mozilla::dom::Element* aElement, nsAtom* aAttr) {
+  mozilla::dom::Document* doc = aElement->OwnerDoc();
+  MOZ_ASSERT(doc);
+  if (DocAccessible* docAcc = GetDocAccessible(doc)) {
+    docAcc->AttrElementWillChange(aElement, aAttr);
+  }
+}
+
+void nsAccessibilityService::NotifyAttrElementChanged(
+    mozilla::dom::Element* aElement, nsAtom* aAttr) {
+  mozilla::dom::Document* doc = aElement->OwnerDoc();
+  MOZ_ASSERT(doc);
+  if (DocAccessible* docAcc = GetDocAccessible(doc)) {
+    docAcc->AttrElementChanged(aElement, aAttr);
+  }
+}
+
 LocalAccessible* nsAccessibilityService::GetRootDocumentAccessible(
     PresShell* aPresShell, bool aCanCreate) {
   PresShell* presShell = aPresShell;
@@ -820,7 +838,7 @@ void nsAccessibilityService::RecreateAccessible(PresShell* aPresShell,
 
 void nsAccessibilityService::GetStringRole(uint32_t aRole, nsAString& aString) {
 #define ROLE(geckoRole, stringRole, ariaRole, atkRole, macRole, macSubrole, \
-             msaaRole, ia2Role, androidClass, nameRule)                     \
+             msaaRole, ia2Role, androidClass, iosIsElement, nameRule)       \
   case roles::geckoRole:                                                    \
     aString.AssignLiteral(stringRole);                                      \
     return;
@@ -1504,8 +1522,8 @@ bool nsAccessibilityService::Init() {
   NS_ADDREF(gApplicationAccessible);  // will release in Shutdown()
   gApplicationAccessible->Init();
 
-  CrashReporter::AnnotateCrashReport(CrashReporter::Annotation::Accessibility,
-                                     "Active"_ns);
+  CrashReporter::RecordAnnotationCString(
+      CrashReporter::Annotation::Accessibility, "Active");
 
   // Now its safe to start platform accessibility.
   if (XRE_IsParentProcess()) PlatformInit();
diff --git a/accessible/base/nsAccessibilityService.h b/accessible/base/nsAccessibilityService.h
index 0b3f172f89..77b56f2fc1 100644
--- a/accessible/base/nsAccessibilityService.h
+++ b/accessible/base/nsAccessibilityService.h
@@ -244,6 +244,19 @@ class nsAccessibilityService final : public mozilla::a11y::DocManager,
   void NotifyOfDevPixelRatioChange(mozilla::PresShell* aPresShell,
                                    int32_t aAppUnitsPerDevPixel);
 
+  /**
+   * Notify accessibility that an element explicitly set for an attribute is
+   * about to change. See dom::Element::ExplicitlySetAttrElement.
+   */
+  void NotifyAttrElementWillChange(mozilla::dom::Element* aElement,
+                                   nsAtom* aAttr);
+
+  /**
+   * Notify accessibility that an element explicitly set for an attribute has
+   * changed. See dom::Element::ExplicitlySetAttrElement.
+   */
+  void NotifyAttrElementChanged(mozilla::dom::Element* aElement, nsAtom* aAttr);
+
   // nsAccessibiltiyService
 
   /**
diff --git a/accessible/base/nsCoreUtils.cpp b/accessible/base/nsCoreUtils.cpp
index 80739bb401..c5e89258fa 100644
--- a/accessible/base/nsCoreUtils.cpp
+++ b/accessible/base/nsCoreUtils.cpp
@@ -35,6 +35,7 @@
 #include "nsTreeColumns.h"
 #include "mozilla/dom/DocumentInlines.h"
 #include "mozilla/dom/Element.h"
+#include "mozilla/dom/ElementInternals.h"
 #include "mozilla/dom/HTMLLabelElement.h"
 #include "mozilla/dom/MouseEventBinding.h"
 #include "mozilla/dom/Selection.h"
@@ -546,6 +547,32 @@ bool nsCoreUtils::IsWhitespaceString(const nsAString& aString) {
   return iterBegin == iterEnd;
 }
 
+void nsCoreUtils::TrimNonBreakingSpaces(nsAString& aString) {
+  if (aString.IsEmpty()) {
+    return;
+  }
+
+  // Find the index past the last nbsp prefix character.
+  constexpr char16_t nbsp{0xA0};
+  size_t startIndex = 0;
+  while (aString.CharAt(startIndex) == nbsp) {
+    startIndex++;
+  }
+
+  // Find the index before the first nbsp suffix character.
+  size_t endIndex = aString.Length() - 1;
+  while (endIndex > startIndex && aString.CharAt(endIndex) == nbsp) {
+    endIndex--;
+  }
+  if (startIndex > endIndex) {
+    aString.Truncate();
+    return;
+  }
+
+  // Trim the string down, removing the non-breaking space characters.
+  aString = Substring(aString, startIndex, endIndex - startIndex + 1);
+}
+
 bool nsCoreUtils::AccEventObserversExist() {
   nsCOMPtr<nsIObserverService> obsService = services::GetObserverService();
   NS_ENSURE_TRUE(obsService, false);
@@ -620,3 +647,34 @@ bool nsCoreUtils::IsDocumentVisibleConsideringInProcessAncestors(
   } while ((parent = parent->GetInProcessParentDocument()));
   return true;
 }
+
+bool nsCoreUtils::IsDescendantOfAnyShadowIncludingAncestor(
+    nsINode* aDescendant, nsINode* aStartAncestor) {
+  const nsINode* descRoot = aDescendant->SubtreeRoot();
+  nsINode* ancRoot = aStartAncestor->SubtreeRoot();
+  for (;;) {
+    if (ancRoot == descRoot) {
+      return true;
+    }
+    auto* shadow = mozilla::dom::ShadowRoot::FromNode(ancRoot);
+    if (!shadow || !shadow->GetHost()) {
+      break;
+    }
+    ancRoot = shadow->GetHost()->SubtreeRoot();
+  }
+  return false;
+}
+
+Element* nsCoreUtils::GetAriaActiveDescendantElement(Element* aElement) {
+  if (Element* activeDescendant = aElement->GetAriaActiveDescendantElement()) {
+    return activeDescendant;
+  }
+
+  if (auto* element = nsGenericHTMLElement::FromNode(aElement)) {
+    if (auto* internals = element->GetInternals()) {
+      return internals->GetAriaActiveDescendantElement();
+    }
+  }
+
+  return nullptr;
+}
diff --git a/accessible/base/nsCoreUtils.h b/accessible/base/nsCoreUtils.h
index 2c3e7330ff..5e77d6bfe0 100644
--- a/accessible/base/nsCoreUtils.h
+++ b/accessible/base/nsCoreUtils.h
@@ -30,6 +30,7 @@ namespace mozilla {
 class PresShell;
 namespace dom {
 class Document;
+class Element;
 class XULTreeElement;
 }  // namespace dom
 }  // namespace mozilla
@@ -41,6 +42,7 @@ class nsCoreUtils {
  public:
   typedef mozilla::PresShell PresShell;
   typedef mozilla::dom::Document Document;
+  typedef mozilla::dom::Element Element;
 
   /**
    * Return true if the given node is a label of a control.
@@ -305,6 +307,11 @@ class nsCoreUtils {
            aChar == 0xa0;
   }
 
+  /**
+   * Remove non-breaking spaces from the beginning and end of the string.
+   */
+  static void TrimNonBreakingSpaces(nsAString& aString);
+
   /*
    * Return true if there are any observers of accessible events.
    */
@@ -324,6 +331,15 @@ class nsCoreUtils {
    */
   static bool IsDocumentVisibleConsideringInProcessAncestors(
       const Document* aDocument);
+
+  /**
+   * Return true if `aDescendant` is a descendant of any of `aStartAncestor`'s
+   * shadow-including ancestors.
+   */
+  static bool IsDescendantOfAnyShadowIncludingAncestor(nsINode* aDescendant,
+                                                       nsINode* aStartAncestor);
+
+  static Element* GetAriaActiveDescendantElement(Element* aElement);
 };
 
 #endif
diff --git a/accessible/base/nsTextEquivUtils.cpp b/accessible/base/nsTextEquivUtils.cpp
index d95229c1dc..f222930981 100644
--- a/accessible/base/nsTextEquivUtils.cpp
+++ b/accessible/base/nsTextEquivUtils.cpp
@@ -177,6 +177,16 @@ nsresult nsTextEquivUtils::AppendFromAccessible(Accessible* aAccessible,
 
   bool isEmptyTextEquiv = true;
 
+  // Attempt to find the value. If it's non-empty, append and return it. See the
+  // "embedded control" section of the name spec.
+  nsAutoString val;
+  nsresult rv = AppendFromValue(aAccessible, &val);
+  NS_ENSURE_SUCCESS(rv, rv);
+  if (rv == NS_OK) {
+    AppendString(aString, val);
+    return NS_OK;
+  }
+
   // If the name is from tooltip then append it to result string in the end
   // (see h. step of name computation guide).
   nsAutoString text;
@@ -184,12 +194,6 @@ nsresult nsTextEquivUtils::AppendFromAccessible(Accessible* aAccessible,
     isEmptyTextEquiv = !AppendString(aString, text);
   }
 
-  // Implementation of f. step.
-  nsresult rv = AppendFromValue(aAccessible, aString);
-  NS_ENSURE_SUCCESS(rv, rv);
-
-  if (rv != NS_OK_NO_NAME_CLAUSE_HANDLED) isEmptyTextEquiv = false;
-
   // Implementation of g) step of text equivalent computation guide. Go down
   // into subtree if accessible allows "text equivalent from subtree rule" or
   // it's not root and not control.
@@ -230,6 +234,19 @@ nsresult nsTextEquivUtils::AppendFromValue(Accessible* aAccessible,
 
   nsAutoString text;
   if (aAccessible != sInitiatorAcc) {
+    // For listboxes in non-initiator computations, we need to get the selected
+    // item and append its text alternative.
+    if (aAccessible->IsListControl()) {
+      Accessible* selected = aAccessible->GetSelectedItem(0);
+      if (selected) {
+        nsresult rv = AppendFromAccessible(selected, &text);
+        NS_ENSURE_SUCCESS(rv, rv);
+        return AppendString(aString, text) ? NS_OK
+                                           : NS_OK_NO_NAME_CLAUSE_HANDLED;
+      }
+      return NS_ERROR_FAILURE;
+    }
+
     aAccessible->Value(text);
 
     return AppendString(aString, text) ? NS_OK : NS_OK_NO_NAME_CLAUSE_HANDLED;
@@ -306,7 +323,7 @@ bool nsTextEquivUtils::AppendString(nsAString* aString,
 
 uint32_t nsTextEquivUtils::GetRoleRule(role aRole) {
 #define ROLE(geckoRole, stringRole, ariaRole, atkRole, macRole, macSubrole, \
-             msaaRole, ia2Role, androidClass, nameRule)                     \
+             msaaRole, ia2Role, androidClass, iosIsElement, nameRule)       \
   case roles::geckoRole:                                                    \
     return nameRule;