Adding upstream version 115.8.0esr.upstream/115.8.0esr

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

1 files changed, 699 insertions, 0 deletions

diff --git a/accessible/xpcom/xpcAccessible.cpp b/accessible/xpcom/xpcAccessible.cpp
new file mode 100644
index 0000000000..56d738c367
--- /dev/null
+++ b/accessible/xpcom/xpcAccessible.cpp
@@ -0,0 +1,699 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* 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 "LocalAccessible-inl.h"
+#include "mozilla/a11y/DocAccessibleParent.h"
+#include "nsAccessibilityService.h"
+#include "AccAttributes.h"
+#include "nsAccUtils.h"
+#include "nsComponentManagerUtils.h"
+#include "nsIAccessibleRelation.h"
+#include "nsIAccessibleRole.h"
+#include "nsAccessibleRelation.h"
+#include "Relation.h"
+#include "Role.h"
+#include "RootAccessible.h"
+#include "xpcAccessibleDocument.h"
+
+#include "nsIMutableArray.h"
+#include "nsPersistentProperties.h"
+
+#ifdef MOZ_WIDGET_COCOA
+#  include "xpcAccessibleMacInterface.h"
+#endif
+
+using namespace mozilla::a11y;
+
+NS_IMETHODIMP
+xpcAccessible::GetParent(nsIAccessible** aParent) {
+  NS_ENSURE_ARG_POINTER(aParent);
+  *aParent = nullptr;
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  Accessible* parent = IntlGeneric()->Parent();
+  NS_IF_ADDREF(*aParent = ToXPC(parent));
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetNextSibling(nsIAccessible** aNextSibling) {
+  NS_ENSURE_ARG_POINTER(aNextSibling);
+  *aNextSibling = nullptr;
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  NS_IF_ADDREF(*aNextSibling = ToXPC(IntlGeneric()->NextSibling()));
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetPreviousSibling(nsIAccessible** aPreviousSibling) {
+  NS_ENSURE_ARG_POINTER(aPreviousSibling);
+  *aPreviousSibling = nullptr;
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  NS_IF_ADDREF(*aPreviousSibling = ToXPC(IntlGeneric()->PrevSibling()));
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetFirstChild(nsIAccessible** aFirstChild) {
+  NS_ENSURE_ARG_POINTER(aFirstChild);
+  *aFirstChild = nullptr;
+
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  NS_IF_ADDREF(*aFirstChild = ToXPC(IntlGeneric()->FirstChild()));
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetLastChild(nsIAccessible** aLastChild) {
+  NS_ENSURE_ARG_POINTER(aLastChild);
+  *aLastChild = nullptr;
+
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  NS_IF_ADDREF(*aLastChild = ToXPC(IntlGeneric()->LastChild()));
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetChildCount(int32_t* aChildCount) {
+  NS_ENSURE_ARG_POINTER(aChildCount);
+
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  *aChildCount = IntlGeneric()->ChildCount();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetChildAt(int32_t aChildIndex, nsIAccessible** aChild) {
+  NS_ENSURE_ARG_POINTER(aChild);
+  *aChild = nullptr;
+
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  // If child index is negative, then return last child.
+  // XXX: do we really need this?
+  if (aChildIndex < 0) aChildIndex = IntlGeneric()->ChildCount() - 1;
+
+  Accessible* child = IntlGeneric()->ChildAt(aChildIndex);
+  if (!child) return NS_ERROR_INVALID_ARG;
+
+  NS_ADDREF(*aChild = ToXPC(child));
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetChildren(nsIArray** aChildren) {
+  NS_ENSURE_ARG_POINTER(aChildren);
+  *aChildren = nullptr;
+
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  nsresult rv = NS_OK;
+  nsCOMPtr<nsIMutableArray> children =
+      do_CreateInstance(NS_ARRAY_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  uint32_t childCount = IntlGeneric()->ChildCount();
+  for (uint32_t childIdx = 0; childIdx < childCount; childIdx++) {
+    Accessible* child = IntlGeneric()->ChildAt(childIdx);
+    children->AppendElement(static_cast<nsIAccessible*>(ToXPC(child)));
+  }
+
+  children.forget(aChildren);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetIndexInParent(int32_t* aIndexInParent) {
+  NS_ENSURE_ARG_POINTER(aIndexInParent);
+  *aIndexInParent = -1;
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  *aIndexInParent = IntlGeneric()->IndexInParent();
+
+  return *aIndexInParent != -1 ? NS_OK : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetUniqueID(int64_t* aUniqueID) {
+  NS_ENSURE_ARG_POINTER(aUniqueID);
+
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  if (IntlGeneric()->IsLocal()) {
+    *aUniqueID = reinterpret_cast<uintptr_t>(Intl()->UniqueID());
+  } else if (IntlGeneric()->IsRemote()) {
+    *aUniqueID = IntlGeneric()->AsRemote()->ID();
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetDOMNode(nsINode** aDOMNode) {
+  NS_ENSURE_ARG_POINTER(aDOMNode);
+  *aDOMNode = nullptr;
+
+  if (!Intl()) return NS_ERROR_FAILURE;
+
+  nsCOMPtr<nsINode> node = Intl()->GetNode();
+  node.forget(aDOMNode);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetId(nsAString& aID) {
+  if (!IntlGeneric()) {
+    return NS_ERROR_FAILURE;
+  }
+
+  RemoteAccessible* proxy = IntlGeneric()->AsRemote();
+  if (!proxy) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsString id;
+  proxy->DOMNodeID(id);
+  aID.Assign(id);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetDocument(nsIAccessibleDocument** aDocument) {
+  NS_ENSURE_ARG_POINTER(aDocument);
+  *aDocument = nullptr;
+
+  if (!Intl()) return NS_ERROR_FAILURE;
+
+  NS_IF_ADDREF(*aDocument = ToXPCDocument(Intl()->Document()));
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetRootDocument(nsIAccessibleDocument** aRootDocument) {
+  NS_ENSURE_ARG_POINTER(aRootDocument);
+  *aRootDocument = nullptr;
+
+  if (!Intl()) return NS_ERROR_FAILURE;
+
+  NS_IF_ADDREF(*aRootDocument = ToXPCDocument(Intl()->RootAccessible()));
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetRole(uint32_t* aRole) {
+  NS_ENSURE_ARG_POINTER(aRole);
+  *aRole = nsIAccessibleRole::ROLE_NOTHING;
+
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  *aRole = IntlGeneric()->Role();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetState(uint32_t* aState, uint32_t* aExtraState) {
+  NS_ENSURE_ARG_POINTER(aState);
+
+  Accessible* acc = IntlGeneric();
+  if (acc) {
+    nsAccUtils::To32States(acc->State(), aState, aExtraState);
+  } else {
+    nsAccUtils::To32States(states::DEFUNCT, aState, aExtraState);
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetName(nsAString& aName) {
+  aName.Truncate();
+
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  nsAutoString name;
+  IntlGeneric()->Name(name);
+
+  aName.Assign(name);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetDescription(nsAString& aDescription) {
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  nsAutoString desc;
+  IntlGeneric()->Description(desc);
+
+  aDescription.Assign(desc);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetLanguage(nsAString& aLanguage) {
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  nsAutoString lang;
+  IntlGeneric()->Language(lang);
+
+  aLanguage.Assign(lang);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetValue(nsAString& aValue) {
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  nsAutoString value;
+  IntlGeneric()->Value(value);
+
+  aValue.Assign(value);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetAccessKey(nsAString& aAccessKey) {
+  aAccessKey.Truncate();
+
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  IntlGeneric()->AccessKey().ToString(aAccessKey);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetKeyboardShortcut(nsAString& aKeyBinding) {
+  aKeyBinding.Truncate();
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  if (IntlGeneric()->IsRemote()) {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  Intl()->KeyboardShortcut().ToString(aKeyBinding);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetAttributes(nsIPersistentProperties** aAttributes) {
+  NS_ENSURE_ARG_POINTER(aAttributes);
+  *aAttributes = nullptr;
+
+  if (!IntlGeneric()) {
+    return NS_ERROR_FAILURE;
+  }
+
+  RefPtr<nsPersistentProperties> props = new nsPersistentProperties();
+
+  RefPtr<AccAttributes> attributes = IntlGeneric()->Attributes();
+
+  nsAutoString unused;
+  for (auto iter : *attributes) {
+    nsAutoString name;
+    iter.NameAsString(name);
+
+    nsAutoString value;
+    iter.ValueAsString(value);
+
+    props->SetStringProperty(NS_ConvertUTF16toUTF8(name), value, unused);
+  }
+
+  props.forget(aAttributes);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetCache(nsIPersistentProperties** aCachedFields) {
+  NS_ENSURE_ARG_POINTER(aCachedFields);
+  *aCachedFields = nullptr;
+
+  if (!IntlGeneric()) {
+    return NS_ERROR_FAILURE;
+  }
+
+  RefPtr<nsPersistentProperties> props = new nsPersistentProperties();
+  if (RemoteAccessible* remoteAcc = IntlGeneric()->AsRemote()) {
+    if (RefPtr<AccAttributes> cachedFields = remoteAcc->mCachedFields) {
+      nsAutoString unused;
+      for (auto iter : *cachedFields) {
+        nsAutoString name;
+        iter.NameAsString(name);
+
+        nsAutoString value;
+        iter.ValueAsString(value);
+
+        props->SetStringProperty(NS_ConvertUTF16toUTF8(name), value, unused);
+      }
+    }
+  }
+
+  props.forget(aCachedFields);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetNativeInterface(nsISupports** aNativeInterface) {
+#ifdef MOZ_WIDGET_COCOA
+  NS_ENSURE_ARG_POINTER(aNativeInterface);
+
+  // We don't cache or store this instance anywhere so each get returns a
+  // different instance. So `acc.nativeInterface != acc.nativeInterface`. This
+  // just seems simpler and more robust for now.
+  nsCOMPtr<nsISupports> macIface = static_cast<nsIAccessibleMacInterface*>(
+      new xpcAccessibleMacInterface(IntlGeneric()));
+  macIface.swap(*aNativeInterface);
+
+  return NS_OK;
+#else
+  return NS_ERROR_NOT_IMPLEMENTED;
+#endif
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetBounds(int32_t* aX, int32_t* aY, int32_t* aWidth,
+                         int32_t* aHeight) {
+  NS_ENSURE_ARG_POINTER(aX);
+  *aX = 0;
+  NS_ENSURE_ARG_POINTER(aY);
+  *aY = 0;
+  NS_ENSURE_ARG_POINTER(aWidth);
+  *aWidth = 0;
+  NS_ENSURE_ARG_POINTER(aHeight);
+  *aHeight = 0;
+
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  LayoutDeviceIntRect rect = IntlGeneric()->Bounds();
+  rect.GetRect(aX, aY, aWidth, aHeight);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetBoundsInCSSPixels(int32_t* aX, int32_t* aY, int32_t* aWidth,
+                                    int32_t* aHeight) {
+  NS_ENSURE_ARG_POINTER(aX);
+  *aX = 0;
+  NS_ENSURE_ARG_POINTER(aY);
+  *aY = 0;
+  NS_ENSURE_ARG_POINTER(aWidth);
+  *aWidth = 0;
+  NS_ENSURE_ARG_POINTER(aHeight);
+  *aHeight = 0;
+
+  if (!IntlGeneric()) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsIntRect rect = IntlGeneric()->BoundsInCSSPixels();
+  rect.GetRect(aX, aY, aWidth, aHeight);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GroupPosition(int32_t* aGroupLevel,
+                             int32_t* aSimilarItemsInGroup,
+                             int32_t* aPositionInGroup) {
+  NS_ENSURE_ARG_POINTER(aGroupLevel);
+  NS_ENSURE_ARG_POINTER(aSimilarItemsInGroup);
+  NS_ENSURE_ARG_POINTER(aPositionInGroup);
+
+  GroupPos groupPos = IntlGeneric()->GroupPosition();
+
+  *aGroupLevel = groupPos.level;
+  *aSimilarItemsInGroup = groupPos.setSize;
+  *aPositionInGroup = groupPos.posInSet;
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetRelationByType(uint32_t aType,
+                                 nsIAccessibleRelation** aRelation) {
+  NS_ENSURE_ARG_POINTER(aRelation);
+  *aRelation = nullptr;
+
+  NS_ENSURE_ARG(aType <= static_cast<uint32_t>(RelationType::LAST));
+
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  Relation rel =
+      IntlGeneric()->RelationByType(static_cast<RelationType>(aType));
+  NS_ADDREF(*aRelation = new nsAccessibleRelation(aType, &rel));
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetRelations(nsIArray** aRelations) {
+  NS_ENSURE_ARG_POINTER(aRelations);
+  *aRelations = nullptr;
+
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  nsCOMPtr<nsIMutableArray> relations = do_CreateInstance(NS_ARRAY_CONTRACTID);
+  NS_ENSURE_TRUE(relations, NS_ERROR_OUT_OF_MEMORY);
+
+  static const uint32_t relationTypes[] = {
+      nsIAccessibleRelation::RELATION_LABELLED_BY,
+      nsIAccessibleRelation::RELATION_LABEL_FOR,
+      nsIAccessibleRelation::RELATION_DESCRIBED_BY,
+      nsIAccessibleRelation::RELATION_DESCRIPTION_FOR,
+      nsIAccessibleRelation::RELATION_NODE_CHILD_OF,
+      nsIAccessibleRelation::RELATION_NODE_PARENT_OF,
+      nsIAccessibleRelation::RELATION_CONTROLLED_BY,
+      nsIAccessibleRelation::RELATION_CONTROLLER_FOR,
+      nsIAccessibleRelation::RELATION_FLOWS_TO,
+      nsIAccessibleRelation::RELATION_FLOWS_FROM,
+      nsIAccessibleRelation::RELATION_MEMBER_OF,
+      nsIAccessibleRelation::RELATION_SUBWINDOW_OF,
+      nsIAccessibleRelation::RELATION_EMBEDS,
+      nsIAccessibleRelation::RELATION_EMBEDDED_BY,
+      nsIAccessibleRelation::RELATION_POPUP_FOR,
+      nsIAccessibleRelation::RELATION_PARENT_WINDOW_OF,
+      nsIAccessibleRelation::RELATION_DEFAULT_BUTTON,
+      nsIAccessibleRelation::RELATION_CONTAINING_DOCUMENT,
+      nsIAccessibleRelation::RELATION_CONTAINING_TAB_PANE,
+      nsIAccessibleRelation::RELATION_CONTAINING_APPLICATION};
+
+  for (uint32_t idx = 0; idx < ArrayLength(relationTypes); idx++) {
+    nsCOMPtr<nsIAccessibleRelation> relation;
+    nsresult rv =
+        GetRelationByType(relationTypes[idx], getter_AddRefs(relation));
+
+    if (NS_SUCCEEDED(rv) && relation) {
+      uint32_t targets = 0;
+      relation->GetTargetsCount(&targets);
+      if (targets) relations->AppendElement(relation);
+    }
+  }
+
+  NS_ADDREF(*aRelations = relations);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetFocusedChild(nsIAccessible** aChild) {
+  NS_ENSURE_ARG_POINTER(aChild);
+  *aChild = nullptr;
+
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  NS_IF_ADDREF(*aChild = ToXPC(IntlGeneric()->FocusedChild()));
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetChildAtPoint(int32_t aX, int32_t aY,
+                               nsIAccessible** aAccessible) {
+  NS_ENSURE_ARG_POINTER(aAccessible);
+  *aAccessible = nullptr;
+
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  NS_IF_ADDREF(*aAccessible = ToXPC(IntlGeneric()->ChildAtPoint(
+                   aX, aY, Accessible::EWhichChildAtPoint::DirectChild)));
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetDeepestChildAtPoint(int32_t aX, int32_t aY,
+                                      nsIAccessible** aAccessible) {
+  NS_ENSURE_ARG_POINTER(aAccessible);
+  *aAccessible = nullptr;
+
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  NS_IF_ADDREF(*aAccessible = ToXPC(IntlGeneric()->ChildAtPoint(
+                   aX, aY, Accessible::EWhichChildAtPoint::DeepestChild)));
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetDeepestChildAtPointInProcess(int32_t aX, int32_t aY,
+                                               nsIAccessible** aAccessible) {
+  NS_ENSURE_ARG_POINTER(aAccessible);
+  *aAccessible = nullptr;
+
+  Accessible* generic = IntlGeneric();
+  if (!generic || generic->IsRemote()) {
+    return NS_ERROR_FAILURE;
+  }
+
+  NS_IF_ADDREF(*aAccessible = ToXPC(Intl()->LocalChildAtPoint(
+                   aX, aY, Accessible::EWhichChildAtPoint::DeepestChild)));
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::SetSelected(bool aSelect) {
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  IntlGeneric()->SetSelected(aSelect);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::TakeSelection() {
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  IntlGeneric()->TakeSelection();
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::TakeFocus() {
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  IntlGeneric()->TakeFocus();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetActionCount(uint8_t* aActionCount) {
+  NS_ENSURE_ARG_POINTER(aActionCount);
+  *aActionCount = 0;
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  *aActionCount = IntlGeneric()->ActionCount();
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetActionName(uint8_t aIndex, nsAString& aName) {
+  aName.Truncate();
+
+  if (!IntlGeneric()) {
+    return NS_ERROR_FAILURE;
+  }
+
+  if (aIndex >= IntlGeneric()->ActionCount()) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  nsAutoString name;
+  IntlGeneric()->ActionNameAt(aIndex, name);
+
+  aName.Assign(name);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetActionDescription(uint8_t aIndex, nsAString& aDescription) {
+  aDescription.Truncate();
+
+  if (!IntlGeneric()) {
+    return NS_ERROR_FAILURE;
+  }
+
+  if (aIndex >= IntlGeneric()->ActionCount()) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  nsAutoString description;
+  IntlGeneric()->ActionDescriptionAt(aIndex, description);
+
+  aDescription.Assign(description);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::DoAction(uint8_t aIndex) {
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  return IntlGeneric()->DoAction(aIndex) ? NS_OK : NS_ERROR_INVALID_ARG;
+}
+
+NS_IMETHODIMP
+xpcAccessible::ScrollTo(uint32_t aHow) {
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  IntlGeneric()->ScrollTo(aHow);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::ScrollToPoint(uint32_t aCoordinateType, int32_t aX, int32_t aY) {
+  if (!IntlGeneric()) return NS_ERROR_FAILURE;
+
+  if (RemoteAccessible* proxy = IntlGeneric()->AsRemote()) {
+#if defined(XP_WIN)
+    return NS_ERROR_NOT_IMPLEMENTED;
+#else
+    proxy->ScrollToPoint(aCoordinateType, aX, aY);
+#endif
+  } else {
+    Intl()->ScrollToPoint(aCoordinateType, aX, aY);
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::Announce(const nsAString& aAnnouncement, uint16_t aPriority) {
+  if (RemoteAccessible* proxy = IntlGeneric()->AsRemote()) {
+#if defined(XP_WIN)
+    return NS_ERROR_NOT_IMPLEMENTED;
+#else
+    nsString announcement(aAnnouncement);
+    proxy->Announce(announcement, aPriority);
+#endif
+  } else {
+    Intl()->Announce(aAnnouncement, aPriority);
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessible::GetComputedARIARole(nsAString& aRole) {
+  if (!IntlGeneric()) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsStaticAtom* ariaRole = IntlGeneric()->ComputedARIARole();
+  if (ariaRole) {
+    ariaRole->ToString(aRole);
+  }
+
+  return NS_OK;
+}