Add m-esr52 at 52.6.0

1 files changed, 1759 insertions, 0 deletions

diff --git a/accessible/atk/AccessibleWrap.cpp b/accessible/atk/AccessibleWrap.cpp
new file mode 100644
index 000000000..cd0f2999a
--- /dev/null
+++ b/accessible/atk/AccessibleWrap.cpp
@@ -0,0 +1,1759 @@
+/* -*- 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 "AccessibleWrap.h"
+
+#include "Accessible-inl.h"
+#include "ApplicationAccessibleWrap.h"
+#include "InterfaceInitFuncs.h"
+#include "nsAccUtils.h"
+#include "mozilla/a11y/PDocAccessible.h"
+#include "OuterDocAccessible.h"
+#include "ProxyAccessible.h"
+#include "RootAccessible.h"
+#include "TableAccessible.h"
+#include "TableCellAccessible.h"
+#include "nsMai.h"
+#include "nsMaiHyperlink.h"
+#include "nsString.h"
+#include "nsStateMap.h"
+#include "mozilla/a11y/Platform.h"
+#include "Relation.h"
+#include "RootAccessible.h"
+#include "States.h"
+#include "nsISimpleEnumerator.h"
+
+#include "mozilla/ArrayUtils.h"
+#include "mozilla/Sprintf.h"
+#include "nsXPCOMStrings.h"
+#include "nsComponentManagerUtils.h"
+#include "nsIPersistentProperties2.h"
+
+using namespace mozilla;
+using namespace mozilla::a11y;
+
+MaiAtkObject::EAvailableAtkSignals MaiAtkObject::gAvailableAtkSignals =
+  eUnknown;
+
+//defined in ApplicationAccessibleWrap.cpp
+extern "C" GType g_atk_hyperlink_impl_type;
+
+/* MaiAtkObject */
+
+enum {
+  ACTIVATE,
+  CREATE,
+  DEACTIVATE,
+  DESTROY,
+  MAXIMIZE,
+  MINIMIZE,
+  RESIZE,
+  RESTORE,
+  LAST_SIGNAL
+};
+
+enum MaiInterfaceType {
+    MAI_INTERFACE_COMPONENT, /* 0 */
+    MAI_INTERFACE_ACTION,
+    MAI_INTERFACE_VALUE,
+    MAI_INTERFACE_EDITABLE_TEXT,
+    MAI_INTERFACE_HYPERTEXT,
+    MAI_INTERFACE_HYPERLINK_IMPL,
+    MAI_INTERFACE_SELECTION,
+    MAI_INTERFACE_TABLE,
+    MAI_INTERFACE_TEXT,
+    MAI_INTERFACE_DOCUMENT, 
+    MAI_INTERFACE_IMAGE, /* 10 */
+    MAI_INTERFACE_TABLE_CELL
+};
+
+static GType GetAtkTypeForMai(MaiInterfaceType type)
+{
+  switch (type) {
+    case MAI_INTERFACE_COMPONENT:
+      return ATK_TYPE_COMPONENT;
+    case MAI_INTERFACE_ACTION:
+      return ATK_TYPE_ACTION;
+    case MAI_INTERFACE_VALUE:
+      return ATK_TYPE_VALUE;
+    case MAI_INTERFACE_EDITABLE_TEXT:
+      return ATK_TYPE_EDITABLE_TEXT;
+    case MAI_INTERFACE_HYPERTEXT:
+      return ATK_TYPE_HYPERTEXT;
+    case MAI_INTERFACE_HYPERLINK_IMPL:
+       return g_atk_hyperlink_impl_type;
+    case MAI_INTERFACE_SELECTION:
+      return ATK_TYPE_SELECTION;
+    case MAI_INTERFACE_TABLE:
+      return ATK_TYPE_TABLE;
+    case MAI_INTERFACE_TEXT:
+      return ATK_TYPE_TEXT;
+    case MAI_INTERFACE_DOCUMENT:
+      return ATK_TYPE_DOCUMENT;
+    case MAI_INTERFACE_IMAGE:
+      return ATK_TYPE_IMAGE;
+    case MAI_INTERFACE_TABLE_CELL:
+      MOZ_ASSERT(false);
+  }
+  return G_TYPE_INVALID;
+}
+
+#define NON_USER_EVENT ":system"
+    
+// The atk interfaces we can expose without checking what version of ATK we are
+// dealing with.  At the moment AtkTableCell is the only interface we can't
+// always expose.
+static const GInterfaceInfo atk_if_infos[] = {
+    {(GInterfaceInitFunc)componentInterfaceInitCB,
+     (GInterfaceFinalizeFunc) nullptr, nullptr}, 
+    {(GInterfaceInitFunc)actionInterfaceInitCB,
+     (GInterfaceFinalizeFunc) nullptr, nullptr},
+    {(GInterfaceInitFunc)valueInterfaceInitCB,
+     (GInterfaceFinalizeFunc) nullptr, nullptr},
+    {(GInterfaceInitFunc)editableTextInterfaceInitCB,
+     (GInterfaceFinalizeFunc) nullptr, nullptr},
+    {(GInterfaceInitFunc)hypertextInterfaceInitCB,
+     (GInterfaceFinalizeFunc) nullptr, nullptr},
+    {(GInterfaceInitFunc)hyperlinkImplInterfaceInitCB,
+     (GInterfaceFinalizeFunc) nullptr, nullptr},
+    {(GInterfaceInitFunc)selectionInterfaceInitCB,
+     (GInterfaceFinalizeFunc) nullptr, nullptr},
+    {(GInterfaceInitFunc)tableInterfaceInitCB,
+     (GInterfaceFinalizeFunc) nullptr, nullptr},
+    {(GInterfaceInitFunc)textInterfaceInitCB,
+     (GInterfaceFinalizeFunc) nullptr, nullptr},
+    {(GInterfaceInitFunc)documentInterfaceInitCB,
+     (GInterfaceFinalizeFunc) nullptr, nullptr},
+    {(GInterfaceInitFunc)imageInterfaceInitCB,
+     (GInterfaceFinalizeFunc) nullptr, nullptr}
+};
+
+static GQuark quark_mai_hyperlink = 0;
+
+AtkHyperlink*
+MaiAtkObject::GetAtkHyperlink()
+{
+  NS_ASSERTION(quark_mai_hyperlink, "quark_mai_hyperlink not initialized");
+  MaiHyperlink* maiHyperlink =
+    (MaiHyperlink*)g_object_get_qdata(G_OBJECT(this), quark_mai_hyperlink);
+  if (!maiHyperlink) {
+    maiHyperlink = new MaiHyperlink(accWrap);
+    g_object_set_qdata(G_OBJECT(this), quark_mai_hyperlink, maiHyperlink);
+  }
+
+  return maiHyperlink->GetAtkHyperlink();
+}
+
+void
+MaiAtkObject::Shutdown()
+{
+  accWrap.SetBits(0);
+  MaiHyperlink* maiHyperlink =
+    (MaiHyperlink*)g_object_get_qdata(G_OBJECT(this), quark_mai_hyperlink);
+  if (maiHyperlink) {
+    delete maiHyperlink;
+    g_object_set_qdata(G_OBJECT(this), quark_mai_hyperlink, nullptr);
+  }
+}
+
+struct MaiAtkObjectClass
+{
+    AtkObjectClass parent_class;
+};
+
+static guint mai_atk_object_signals [LAST_SIGNAL] = { 0, };
+
+static void MaybeFireNameChange(AtkObject* aAtkObj, const nsString& aNewName);
+
+G_BEGIN_DECLS
+/* callbacks for MaiAtkObject */
+static void classInitCB(AtkObjectClass *aClass);
+static void initializeCB(AtkObject *aAtkObj, gpointer aData);
+static void finalizeCB(GObject *aObj);
+
+/* callbacks for AtkObject virtual functions */
+static const gchar*        getNameCB (AtkObject *aAtkObj);
+/* getDescriptionCB is also used by image interface */
+       const gchar*        getDescriptionCB (AtkObject *aAtkObj);
+static AtkRole             getRoleCB(AtkObject *aAtkObj);
+static AtkAttributeSet*    getAttributesCB(AtkObject *aAtkObj);
+static const gchar* GetLocaleCB(AtkObject*);
+static AtkObject*          getParentCB(AtkObject *aAtkObj);
+static gint                getChildCountCB(AtkObject *aAtkObj);
+static AtkObject*          refChildCB(AtkObject *aAtkObj, gint aChildIndex);
+static gint                getIndexInParentCB(AtkObject *aAtkObj);
+static AtkStateSet*        refStateSetCB(AtkObject *aAtkObj);
+static AtkRelationSet*     refRelationSetCB(AtkObject *aAtkObj);
+
+/* the missing atkobject virtual functions */
+/*
+  static AtkLayer            getLayerCB(AtkObject *aAtkObj);
+  static gint                getMdiZorderCB(AtkObject *aAtkObj);
+  static void                SetNameCB(AtkObject *aAtkObj,
+  const gchar *name);
+  static void                SetDescriptionCB(AtkObject *aAtkObj,
+  const gchar *description);
+  static void                SetParentCB(AtkObject *aAtkObj,
+  AtkObject *parent);
+  static void                SetRoleCB(AtkObject *aAtkObj,
+  AtkRole role);
+  static guint               ConnectPropertyChangeHandlerCB(
+  AtkObject  *aObj,
+  AtkPropertyChangeHandler *handler);
+  static void                RemovePropertyChangeHandlerCB(
+  AtkObject *aAtkObj,
+  guint handler_id);
+  static void                InitializeCB(AtkObject *aAtkObj,
+  gpointer data);
+  static void                ChildrenChangedCB(AtkObject *aAtkObj,
+  guint change_index,
+  gpointer changed_child);
+  static void                FocusEventCB(AtkObject *aAtkObj,
+  gboolean focus_in);
+  static void                PropertyChangeCB(AtkObject *aAtkObj,
+  AtkPropertyValues *values);
+  static void                StateChangeCB(AtkObject *aAtkObj,
+  const gchar *name,
+  gboolean state_set);
+  static void                VisibleDataChangedCB(AtkObject *aAtkObj);
+*/
+G_END_DECLS
+
+static GType GetMaiAtkType(uint16_t interfacesBits);
+static const char * GetUniqueMaiAtkTypeName(uint16_t interfacesBits);
+
+static gpointer parent_class = nullptr;
+
+GType
+mai_atk_object_get_type(void)
+{
+    static GType type = 0;
+
+    if (!type) {
+        static const GTypeInfo tinfo = {
+            sizeof(MaiAtkObjectClass),
+            (GBaseInitFunc)nullptr,
+            (GBaseFinalizeFunc)nullptr,
+            (GClassInitFunc)classInitCB,
+            (GClassFinalizeFunc)nullptr,
+            nullptr, /* class data */
+            sizeof(MaiAtkObject), /* instance size */
+            0, /* nb preallocs */
+            (GInstanceInitFunc)nullptr,
+            nullptr /* value table */
+        };
+
+        type = g_type_register_static(ATK_TYPE_OBJECT,
+                                      "MaiAtkObject", &tinfo, GTypeFlags(0));
+        quark_mai_hyperlink = g_quark_from_static_string("MaiHyperlink");
+    }
+    return type;
+}
+
+AccessibleWrap::
+  AccessibleWrap(nsIContent* aContent, DocAccessible* aDoc) :
+  Accessible(aContent, aDoc), mAtkObject(nullptr)
+{
+}
+
+AccessibleWrap::~AccessibleWrap()
+{
+    NS_ASSERTION(!mAtkObject, "ShutdownAtkObject() is not called");
+}
+
+void
+AccessibleWrap::ShutdownAtkObject()
+{
+  if (!mAtkObject)
+    return;
+
+  NS_ASSERTION(IS_MAI_OBJECT(mAtkObject), "wrong type of atk object");
+  if (IS_MAI_OBJECT(mAtkObject))
+    MAI_ATK_OBJECT(mAtkObject)->Shutdown();
+
+  g_object_unref(mAtkObject);
+  mAtkObject = nullptr;
+}
+
+void
+AccessibleWrap::Shutdown()
+{
+  ShutdownAtkObject();
+  Accessible::Shutdown();
+}
+
+void
+AccessibleWrap::GetNativeInterface(void** aOutAccessible)
+{
+  *aOutAccessible = nullptr;
+
+  if (!mAtkObject) {
+    if (IsDefunct() || IsText()) {
+      // We don't create ATK objects for node which has been shutdown or
+      // plain text leaves
+      return;
+    }
+
+    GType type = GetMaiAtkType(CreateMaiInterfaces());
+    if (!type)
+      return;
+
+    mAtkObject = reinterpret_cast<AtkObject*>(g_object_new(type, nullptr));
+    if (!mAtkObject)
+      return;
+
+    atk_object_initialize(mAtkObject, this);
+    mAtkObject->role = ATK_ROLE_INVALID;
+    mAtkObject->layer = ATK_LAYER_INVALID;
+  }
+
+  *aOutAccessible = mAtkObject;
+}
+
+AtkObject *
+AccessibleWrap::GetAtkObject(void)
+{
+    void *atkObj = nullptr;
+    GetNativeInterface(&atkObj);
+    return static_cast<AtkObject *>(atkObj);
+}
+
+// Get AtkObject from Accessible interface
+/* static */
+AtkObject *
+AccessibleWrap::GetAtkObject(Accessible* acc)
+{
+    void *atkObjPtr = nullptr;
+    acc->GetNativeInterface(&atkObjPtr);
+    return atkObjPtr ? ATK_OBJECT(atkObjPtr) : nullptr;    
+}
+
+/* private */
+uint16_t
+AccessibleWrap::CreateMaiInterfaces(void)
+{
+  uint16_t interfacesBits = 0;
+
+  // The Component interface is supported by all accessibles.
+  interfacesBits |= 1 << MAI_INTERFACE_COMPONENT;
+
+  // Add Action interface if the action count is more than zero.
+  if (ActionCount() > 0)
+    interfacesBits |= 1 << MAI_INTERFACE_ACTION;
+
+  // Text, Editabletext, and Hypertext interface.
+  HyperTextAccessible* hyperText = AsHyperText();
+  if (hyperText && hyperText->IsTextRole()) {
+    interfacesBits |= 1 << MAI_INTERFACE_TEXT;
+    interfacesBits |= 1 << MAI_INTERFACE_EDITABLE_TEXT;
+    if (!nsAccUtils::MustPrune(this))
+      interfacesBits |= 1 << MAI_INTERFACE_HYPERTEXT;
+  }
+
+  // Value interface.
+  if (HasNumericValue())
+    interfacesBits |= 1 << MAI_INTERFACE_VALUE;
+
+  // Document interface.
+  if (IsDoc())
+    interfacesBits |= 1 << MAI_INTERFACE_DOCUMENT;
+
+  if (IsImage())
+    interfacesBits |= 1 << MAI_INTERFACE_IMAGE;
+
+  // HyperLink interface.
+  if (IsLink())
+    interfacesBits |= 1 << MAI_INTERFACE_HYPERLINK_IMPL;
+
+  if (!nsAccUtils::MustPrune(this)) {  // These interfaces require children
+    // Table interface.
+    if (AsTable())
+      interfacesBits |= 1 << MAI_INTERFACE_TABLE;
+ 
+    if (AsTableCell())
+      interfacesBits |= 1 << MAI_INTERFACE_TABLE_CELL;
+
+    // Selection interface.
+    if (IsSelect()) {
+      interfacesBits |= 1 << MAI_INTERFACE_SELECTION;
+    }
+  }
+
+  return interfacesBits;
+}
+
+static GType
+GetMaiAtkType(uint16_t interfacesBits)
+{
+    GType type;
+    static const GTypeInfo tinfo = {
+        sizeof(MaiAtkObjectClass),
+        (GBaseInitFunc) nullptr,
+        (GBaseFinalizeFunc) nullptr,
+        (GClassInitFunc) nullptr,
+        (GClassFinalizeFunc) nullptr,
+        nullptr, /* class data */
+        sizeof(MaiAtkObject), /* instance size */
+        0, /* nb preallocs */
+        (GInstanceInitFunc) nullptr,
+        nullptr /* value table */
+    };
+
+    /*
+     * The members we use to register GTypes are GetAtkTypeForMai
+     * and atk_if_infos, which are constant values to each MaiInterface
+     * So we can reuse the registered GType when having
+     * the same MaiInterface types.
+     */
+    const char *atkTypeName = GetUniqueMaiAtkTypeName(interfacesBits);
+    type = g_type_from_name(atkTypeName);
+    if (type) {
+        return type;
+    }
+
+    /*
+     * gobject limits the number of types that can directly derive from any
+     * given object type to 4095.
+     */
+    static uint16_t typeRegCount = 0;
+    if (typeRegCount++ >= 4095) {
+        return G_TYPE_INVALID;
+    }
+    type = g_type_register_static(MAI_TYPE_ATK_OBJECT,
+                                  atkTypeName,
+                                  &tinfo, GTypeFlags(0));
+
+    for (uint32_t index = 0; index < ArrayLength(atk_if_infos); index++) {
+      if (interfacesBits & (1 << index)) {
+        g_type_add_interface_static(type,
+                                    GetAtkTypeForMai((MaiInterfaceType)index),
+                                    &atk_if_infos[index]);
+      }
+    }
+
+    // Special case AtkTableCell so we can check what version of Atk we are
+    // dealing with.
+    if (IsAtkVersionAtLeast(2, 12) && (interfacesBits & (1 << MAI_INTERFACE_TABLE_CELL))) {
+      const GInterfaceInfo cellInfo = {
+        (GInterfaceInitFunc)tableCellInterfaceInitCB,
+        (GInterfaceFinalizeFunc)nullptr, nullptr};
+      g_type_add_interface_static(type, gAtkTableCellGetTypeFunc(), &cellInfo);
+    }
+
+    return type;
+}
+
+static const char*
+GetUniqueMaiAtkTypeName(uint16_t interfacesBits)
+{
+#define MAI_ATK_TYPE_NAME_LEN (30)     /* 10+sizeof(uint16_t)*8/4+1 < 30 */
+
+    static gchar namePrefix[] = "MaiAtkType";   /* size = 10 */
+    static gchar name[MAI_ATK_TYPE_NAME_LEN + 1];
+
+    SprintfLiteral(name, "%s%x", namePrefix, interfacesBits);
+    name[MAI_ATK_TYPE_NAME_LEN] = '\0';
+
+    return name;
+}
+
+bool
+AccessibleWrap::IsValidObject()
+{
+    // to ensure we are not shut down
+    return !IsDefunct();
+}
+
+/* static functions for ATK callbacks */
+void
+classInitCB(AtkObjectClass *aClass)
+{
+    GObjectClass *gobject_class = G_OBJECT_CLASS(aClass);
+
+    parent_class = g_type_class_peek_parent(aClass);
+
+    aClass->get_name = getNameCB;
+    aClass->get_description = getDescriptionCB;
+    aClass->get_parent = getParentCB;
+    aClass->get_n_children = getChildCountCB;
+    aClass->ref_child = refChildCB;
+    aClass->get_index_in_parent = getIndexInParentCB;
+    aClass->get_role = getRoleCB;
+    aClass->get_attributes = getAttributesCB;
+    aClass->get_object_locale = GetLocaleCB;
+    aClass->ref_state_set = refStateSetCB;
+    aClass->ref_relation_set = refRelationSetCB;
+
+    aClass->initialize = initializeCB;
+
+    gobject_class->finalize = finalizeCB;
+
+    mai_atk_object_signals [ACTIVATE] =
+    g_signal_new ("activate",
+                  MAI_TYPE_ATK_OBJECT,
+                  G_SIGNAL_RUN_LAST,
+                  0, /* default signal handler */
+                  nullptr, nullptr,
+                  g_cclosure_marshal_VOID__VOID,
+                  G_TYPE_NONE, 0);
+    mai_atk_object_signals [CREATE] =
+    g_signal_new ("create",
+                  MAI_TYPE_ATK_OBJECT,
+                  G_SIGNAL_RUN_LAST,
+                  0, /* default signal handler */
+                  nullptr, nullptr,
+                  g_cclosure_marshal_VOID__VOID,
+                  G_TYPE_NONE, 0);
+    mai_atk_object_signals [DEACTIVATE] =
+    g_signal_new ("deactivate",
+                  MAI_TYPE_ATK_OBJECT,
+                  G_SIGNAL_RUN_LAST,
+                  0, /* default signal handler */
+                  nullptr, nullptr,
+                  g_cclosure_marshal_VOID__VOID,
+                  G_TYPE_NONE, 0);
+    mai_atk_object_signals [DESTROY] =
+    g_signal_new ("destroy",
+                  MAI_TYPE_ATK_OBJECT,
+                  G_SIGNAL_RUN_LAST,
+                  0, /* default signal handler */
+                  nullptr, nullptr,
+                  g_cclosure_marshal_VOID__VOID,
+                  G_TYPE_NONE, 0);
+    mai_atk_object_signals [MAXIMIZE] =
+    g_signal_new ("maximize",
+                  MAI_TYPE_ATK_OBJECT,
+                  G_SIGNAL_RUN_LAST,
+                  0, /* default signal handler */
+                  nullptr, nullptr,
+                  g_cclosure_marshal_VOID__VOID,
+                  G_TYPE_NONE, 0);
+    mai_atk_object_signals [MINIMIZE] =
+    g_signal_new ("minimize",
+                  MAI_TYPE_ATK_OBJECT,
+                  G_SIGNAL_RUN_LAST,
+                  0, /* default signal handler */
+                  nullptr, nullptr,
+                  g_cclosure_marshal_VOID__VOID,
+                  G_TYPE_NONE, 0);
+    mai_atk_object_signals [RESIZE] =
+    g_signal_new ("resize",
+                  MAI_TYPE_ATK_OBJECT,
+                  G_SIGNAL_RUN_LAST,
+                  0, /* default signal handler */
+                  nullptr, nullptr,
+                  g_cclosure_marshal_VOID__VOID,
+                  G_TYPE_NONE, 0);
+    mai_atk_object_signals [RESTORE] =
+    g_signal_new ("restore",
+                  MAI_TYPE_ATK_OBJECT,
+                  G_SIGNAL_RUN_LAST,
+                  0, /* default signal handler */
+                  nullptr, nullptr,
+                  g_cclosure_marshal_VOID__VOID,
+                  G_TYPE_NONE, 0);
+
+}
+
+void
+initializeCB(AtkObject *aAtkObj, gpointer aData)
+{
+    NS_ASSERTION((IS_MAI_OBJECT(aAtkObj)), "Invalid AtkObject");
+    NS_ASSERTION(aData, "Invalid Data to init AtkObject");
+    if (!aAtkObj || !aData)
+        return;
+
+    /* call parent init function */
+    /* AtkObjectClass has not a "initialize" function now,
+     * maybe it has later
+     */
+
+    if (ATK_OBJECT_CLASS(parent_class)->initialize)
+        ATK_OBJECT_CLASS(parent_class)->initialize(aAtkObj, aData);
+
+  /* initialize object */
+  MAI_ATK_OBJECT(aAtkObj)->accWrap.SetBits(reinterpret_cast<uintptr_t>(aData));
+}
+
+void
+finalizeCB(GObject *aObj)
+{
+    if (!IS_MAI_OBJECT(aObj))
+        return;
+    NS_ASSERTION(MAI_ATK_OBJECT(aObj)->accWrap.IsNull(), "AccWrap NOT null");
+
+    // call parent finalize function
+    // finalize of GObjectClass will unref the accessible parent if has
+    if (G_OBJECT_CLASS (parent_class)->finalize)
+        G_OBJECT_CLASS (parent_class)->finalize(aObj);
+}
+
+const gchar*
+getNameCB(AtkObject* aAtkObj)
+{
+  nsAutoString name;
+  AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
+  if (accWrap)
+    accWrap->Name(name);
+  else if (ProxyAccessible* proxy = GetProxy(aAtkObj))
+    proxy->Name(name);
+  else
+    return nullptr;
+
+  // XXX Firing an event from here does not seem right
+  MaybeFireNameChange(aAtkObj, name);
+
+  return aAtkObj->name;
+}
+
+static void
+MaybeFireNameChange(AtkObject* aAtkObj, const nsString& aNewName)
+{
+  NS_ConvertUTF16toUTF8 newNameUTF8(aNewName);
+  if (aAtkObj->name && !strcmp(aAtkObj->name, newNameUTF8.get()))
+    return;
+
+  // Below we duplicate the functionality of atk_object_set_name(),
+  // but without calling atk_object_get_name(). Instead of
+  // atk_object_get_name() we directly access aAtkObj->name. This is because
+  // atk_object_get_name() would call getNameCB() which would call
+  // MaybeFireNameChange() (or atk_object_set_name() before this problem was
+  // fixed) and we would get an infinite recursion.
+  // See http://bugzilla.mozilla.org/733712
+
+  // Do not notify for initial name setting.
+  // See bug http://bugzilla.gnome.org/665870
+  bool notify = !!aAtkObj->name;
+
+  free(aAtkObj->name);
+  aAtkObj->name = strdup(newNameUTF8.get());
+
+  if (notify)
+    g_object_notify(G_OBJECT(aAtkObj), "accessible-name");
+}
+
+const gchar *
+getDescriptionCB(AtkObject *aAtkObj)
+{
+  nsAutoString uniDesc;
+  AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
+  if (accWrap) {
+    if (accWrap->IsDefunct())
+      return nullptr;
+
+    accWrap->Description(uniDesc);
+  } else if (ProxyAccessible* proxy = GetProxy(aAtkObj)) {
+    proxy->Description(uniDesc);
+  } else {
+    return nullptr;
+  }
+
+    NS_ConvertUTF8toUTF16 objDesc(aAtkObj->description);
+    if (!uniDesc.Equals(objDesc))
+        atk_object_set_description(aAtkObj,
+                                   NS_ConvertUTF16toUTF8(uniDesc).get());
+
+    return aAtkObj->description;
+}
+
+AtkRole
+getRoleCB(AtkObject *aAtkObj)
+{
+  if (aAtkObj->role != ATK_ROLE_INVALID)
+    return aAtkObj->role;
+
+  AccessibleOrProxy acc = GetInternalObj(aAtkObj);
+  if (acc.IsNull()) {
+    return ATK_ROLE_INVALID;
+  }
+
+#ifdef DEBUG
+  if (AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj)) {
+    NS_ASSERTION(nsAccUtils::IsTextInterfaceSupportCorrect(accWrap),
+                 "Does not support Text interface when it should");
+  }
+#endif
+
+#define ROLE(geckoRole, stringRole, atkRole, macRole, \
+             msaaRole, ia2Role, nameRule) \
+  case roles::geckoRole: \
+    aAtkObj->role = atkRole; \
+    break;
+
+  switch (acc.Role()) {
+#include "RoleMap.h"
+    default:
+      MOZ_CRASH("Unknown role.");
+  }
+
+#undef ROLE
+
+  if (aAtkObj->role == ATK_ROLE_LIST_BOX && !IsAtkVersionAtLeast(2, 1))
+    aAtkObj->role = ATK_ROLE_LIST;
+  else if (aAtkObj->role == ATK_ROLE_TABLE_ROW && !IsAtkVersionAtLeast(2, 1))
+    aAtkObj->role = ATK_ROLE_LIST_ITEM;
+  else if (aAtkObj->role == ATK_ROLE_MATH && !IsAtkVersionAtLeast(2, 12))
+    aAtkObj->role = ATK_ROLE_SECTION;
+  else if (aAtkObj->role == ATK_ROLE_STATIC && !IsAtkVersionAtLeast(2, 16))
+    aAtkObj->role = ATK_ROLE_TEXT;
+  else if ((aAtkObj->role == ATK_ROLE_MATH_FRACTION ||
+            aAtkObj->role == ATK_ROLE_MATH_ROOT) && !IsAtkVersionAtLeast(2, 16))
+    aAtkObj->role = ATK_ROLE_SECTION;
+
+  return aAtkObj->role;
+}
+
+static AtkAttributeSet*
+ConvertToAtkAttributeSet(nsIPersistentProperties* aAttributes)
+{
+    if (!aAttributes)
+        return nullptr;
+
+    AtkAttributeSet *objAttributeSet = nullptr;
+    nsCOMPtr<nsISimpleEnumerator> propEnum;
+    nsresult rv = aAttributes->Enumerate(getter_AddRefs(propEnum));
+    NS_ENSURE_SUCCESS(rv, nullptr);
+
+    bool hasMore;
+    while (NS_SUCCEEDED(propEnum->HasMoreElements(&hasMore)) && hasMore) {
+        nsCOMPtr<nsISupports> sup;
+        rv = propEnum->GetNext(getter_AddRefs(sup));
+        NS_ENSURE_SUCCESS(rv, objAttributeSet);
+
+        nsCOMPtr<nsIPropertyElement> propElem(do_QueryInterface(sup));
+        NS_ENSURE_TRUE(propElem, objAttributeSet);
+
+        nsAutoCString name;
+        rv = propElem->GetKey(name);
+        NS_ENSURE_SUCCESS(rv, objAttributeSet);
+
+        nsAutoString value;
+        rv = propElem->GetValue(value);
+        NS_ENSURE_SUCCESS(rv, objAttributeSet);
+
+        AtkAttribute *objAttr = (AtkAttribute *)g_malloc(sizeof(AtkAttribute));
+        objAttr->name = g_strdup(name.get());
+        objAttr->value = g_strdup(NS_ConvertUTF16toUTF8(value).get());
+        objAttributeSet = g_slist_prepend(objAttributeSet, objAttr);
+    }
+
+    //libspi will free it
+    return objAttributeSet;
+}
+
+AtkAttributeSet*
+GetAttributeSet(Accessible* aAccessible)
+{
+  nsCOMPtr<nsIPersistentProperties> attributes = aAccessible->Attributes();
+  if (attributes) {
+    // There is no ATK state for haspopup, must use object attribute to expose
+    // the same info.
+    if (aAccessible->State() & states::HASPOPUP) {
+      nsAutoString unused;
+      attributes->SetStringProperty(NS_LITERAL_CSTRING("haspopup"),
+                                    NS_LITERAL_STRING("true"), unused);
+    }
+
+    return ConvertToAtkAttributeSet(attributes);
+  }
+
+  return nullptr;
+}
+
+AtkAttributeSet *
+getAttributesCB(AtkObject *aAtkObj)
+{
+  AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
+  if (accWrap)
+    return GetAttributeSet(accWrap);
+
+  ProxyAccessible* proxy = GetProxy(aAtkObj);
+  if (!proxy)
+    return nullptr;
+
+  AutoTArray<Attribute, 10> attrs;
+  proxy->Attributes(&attrs);
+  if (attrs.IsEmpty())
+    return nullptr;
+
+  AtkAttributeSet* objAttributeSet = nullptr;
+  for (uint32_t i = 0; i < attrs.Length(); i++) {
+    AtkAttribute *objAttr = (AtkAttribute *)g_malloc(sizeof(AtkAttribute));
+    objAttr->name = g_strdup(attrs[i].Name().get());
+    objAttr->value = g_strdup(NS_ConvertUTF16toUTF8(attrs[i].Value()).get());
+    objAttributeSet = g_slist_prepend(objAttributeSet, objAttr);
+  }
+
+  return objAttributeSet;
+}
+
+const gchar*
+GetLocaleCB(AtkObject* aAtkObj)
+{
+  AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
+  if (!accWrap)
+    return nullptr;
+
+  nsAutoString locale;
+  accWrap->Language(locale);
+  return AccessibleWrap::ReturnString(locale);
+}
+
+AtkObject *
+getParentCB(AtkObject *aAtkObj)
+{
+  if (aAtkObj->accessible_parent)
+    return aAtkObj->accessible_parent;
+
+  AccessibleOrProxy acc = GetInternalObj(aAtkObj);
+  if (acc.IsNull()) {
+    return nullptr;
+  }
+
+  AccessibleOrProxy parent = acc.Parent();
+  AtkObject* atkParent = !parent.IsNull() ? GetWrapperFor(parent) : nullptr;
+  if (atkParent)
+    atk_object_set_parent(aAtkObj, atkParent);
+
+  return aAtkObj->accessible_parent;
+}
+
+gint
+getChildCountCB(AtkObject *aAtkObj)
+{
+  if (AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj)) {
+    if (nsAccUtils::MustPrune(accWrap)) {
+      return 0;
+    }
+
+    uint32_t count = accWrap->EmbeddedChildCount();
+    if (count) {
+      return static_cast<gint>(count);
+    }
+
+    OuterDocAccessible* outerDoc = accWrap->AsOuterDoc();
+    if (outerDoc && outerDoc->RemoteChildDoc()) {
+      return 1;
+    }
+  }
+
+  ProxyAccessible* proxy = GetProxy(aAtkObj);
+  if (proxy && !proxy->MustPruneChildren()) {
+    return proxy->EmbeddedChildCount();
+  }
+
+  return 0;
+}
+
+AtkObject *
+refChildCB(AtkObject *aAtkObj, gint aChildIndex)
+{
+  // aChildIndex should not be less than zero
+  if (aChildIndex < 0) {
+    return nullptr;
+  }
+
+  AtkObject* childAtkObj = nullptr;
+  AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
+  if (accWrap) {
+    if (nsAccUtils::MustPrune(accWrap)) {
+      return nullptr;
+    }
+
+    Accessible* accChild = accWrap->GetEmbeddedChildAt(aChildIndex);
+    if (accChild) {
+      childAtkObj = AccessibleWrap::GetAtkObject(accChild);
+    } else {
+      OuterDocAccessible* docOwner = accWrap->AsOuterDoc();
+      if (docOwner) {
+        ProxyAccessible* proxyDoc = docOwner->RemoteChildDoc();
+        if (proxyDoc)
+          childAtkObj = GetWrapperFor(proxyDoc);
+      }
+    }
+  } else if (ProxyAccessible* proxy = GetProxy(aAtkObj)) {
+    if (proxy->MustPruneChildren())
+      return nullptr;
+
+    ProxyAccessible* child = proxy->EmbeddedChildAt(aChildIndex);
+    if (child)
+      childAtkObj = GetWrapperFor(child);
+  } else {
+    return nullptr;
+  }
+
+  NS_ASSERTION(childAtkObj, "Fail to get AtkObj");
+  if (!childAtkObj)
+    return nullptr;
+
+  g_object_ref(childAtkObj);
+
+  if (aAtkObj != childAtkObj->accessible_parent)
+    atk_object_set_parent(childAtkObj, aAtkObj);
+
+  return childAtkObj;
+}
+
+gint
+getIndexInParentCB(AtkObject* aAtkObj)
+{
+  // We don't use Accessible::IndexInParent() because we don't include text
+  // leaf nodes as children in ATK.
+  if (ProxyAccessible* proxy = GetProxy(aAtkObj)) {
+    if (ProxyAccessible* parent = proxy->Parent())
+      return parent->IndexOfEmbeddedChild(proxy);
+
+    if (proxy->OuterDocOfRemoteBrowser())
+      return 0;
+
+    return -1;
+  }
+
+    AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
+    if (!accWrap) {
+        return -1;
+    }
+
+    Accessible* parent = accWrap->Parent();
+    if (!parent)
+        return -1; // No parent
+
+    return parent->GetIndexOfEmbeddedChild(accWrap);
+}
+
+static void
+TranslateStates(uint64_t aState, AtkStateSet* aStateSet)
+{
+  // atk doesn't have a read only state so read only things shouldn't be
+  // editable.
+  if (aState & states::READONLY)
+    aState &= ~states::EDITABLE;
+
+  // Convert every state to an entry in AtkStateMap
+  uint32_t stateIndex = 0;
+  uint64_t bitMask = 1;
+  while (gAtkStateMap[stateIndex].stateMapEntryType != kNoSuchState) {
+    if (gAtkStateMap[stateIndex].atkState) { // There's potentially an ATK state for this
+      bool isStateOn = (aState & bitMask) != 0;
+      if (gAtkStateMap[stateIndex].stateMapEntryType == kMapOpposite) {
+        isStateOn = !isStateOn;
+      }
+      if (isStateOn) {
+        atk_state_set_add_state(aStateSet, gAtkStateMap[stateIndex].atkState);
+      }
+    }
+    bitMask <<= 1;
+    ++ stateIndex;
+  }
+}
+
+AtkStateSet *
+refStateSetCB(AtkObject *aAtkObj)
+{
+  AtkStateSet *state_set = nullptr;
+  state_set = ATK_OBJECT_CLASS(parent_class)->ref_state_set(aAtkObj);
+
+  AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
+  if (accWrap)
+    TranslateStates(accWrap->State(), state_set);
+  else if (ProxyAccessible* proxy = GetProxy(aAtkObj))
+    TranslateStates(proxy->State(), state_set);
+  else
+    TranslateStates(states::DEFUNCT, state_set);
+
+  return state_set;
+}
+
+static void
+UpdateAtkRelation(RelationType aType, Accessible* aAcc,
+                  AtkRelationType aAtkType, AtkRelationSet* aAtkSet)
+{
+  if (aAtkType == ATK_RELATION_NULL)
+    return;
+
+  AtkRelation* atkRelation =
+    atk_relation_set_get_relation_by_type(aAtkSet, aAtkType);
+  if (atkRelation)
+    atk_relation_set_remove(aAtkSet, atkRelation);
+
+  Relation rel(aAcc->RelationByType(aType));
+  nsTArray<AtkObject*> targets;
+  Accessible* tempAcc = nullptr;
+  while ((tempAcc = rel.Next()))
+    targets.AppendElement(AccessibleWrap::GetAtkObject(tempAcc));
+
+  if (aType == RelationType::EMBEDS && aAcc->IsRoot()) {
+    if (ProxyAccessible* proxyDoc =
+        aAcc->AsRoot()->GetPrimaryRemoteTopLevelContentDoc()) {
+      targets.AppendElement(GetWrapperFor(proxyDoc));
+    }
+  }
+
+  if (targets.Length()) {
+    atkRelation = atk_relation_new(targets.Elements(),
+                                   targets.Length(), aAtkType);
+    atk_relation_set_add(aAtkSet, atkRelation);
+    g_object_unref(atkRelation);
+  }
+}
+
+AtkRelationSet *
+refRelationSetCB(AtkObject *aAtkObj)
+{
+  AtkRelationSet* relation_set =
+    ATK_OBJECT_CLASS(parent_class)->ref_relation_set(aAtkObj);
+
+  const AtkRelationType typeMap[] = {
+#define RELATIONTYPE(gecko, s, atk, m, i) atk,
+#include "RelationTypeMap.h"
+#undef RELATIONTYPE
+  };
+
+  if (ProxyAccessible* proxy = GetProxy(aAtkObj)) {
+    nsTArray<RelationType> types;
+    nsTArray<nsTArray<ProxyAccessible*>> targetSets;
+    proxy->Relations(&types, &targetSets);
+
+    size_t relationCount = types.Length();
+    for (size_t i = 0; i < relationCount; i++) {
+      if (typeMap[static_cast<uint32_t>(types[i])] == ATK_RELATION_NULL)
+        continue;
+
+      size_t targetCount = targetSets[i].Length();
+      AutoTArray<AtkObject*, 5> wrappers;
+      for (size_t j = 0; j < targetCount; j++)
+        wrappers.AppendElement(GetWrapperFor(targetSets[i][j]));
+
+      AtkRelationType atkType = typeMap[static_cast<uint32_t>(types[i])];
+      AtkRelation* atkRelation =
+        atk_relation_set_get_relation_by_type(relation_set, atkType);
+      if (atkRelation)
+        atk_relation_set_remove(relation_set, atkRelation);
+
+      atkRelation = atk_relation_new(wrappers.Elements(), wrappers.Length(),
+                                     atkType);
+      atk_relation_set_add(relation_set, atkRelation);
+      g_object_unref(atkRelation);
+    }
+  }
+
+  AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
+  if (!accWrap)
+    return relation_set;
+
+#define RELATIONTYPE(geckoType, geckoTypeName, atkType, msaaType, ia2Type) \
+  UpdateAtkRelation(RelationType::geckoType, accWrap, atkType, relation_set);
+
+#include "RelationTypeMap.h"
+
+#undef RELATIONTYPE
+
+  return relation_set;
+}
+
+// Check if aAtkObj is a valid MaiAtkObject, and return the AccessibleWrap
+// for it.
+AccessibleWrap*
+GetAccessibleWrap(AtkObject* aAtkObj)
+{
+  bool isMAIObject = IS_MAI_OBJECT(aAtkObj);
+  NS_ENSURE_TRUE(isMAIObject || MAI_IS_ATK_SOCKET(aAtkObj),
+                 nullptr);
+
+  AccessibleWrap* accWrap = nullptr;
+  if (isMAIObject) {
+    Accessible* acc = MAI_ATK_OBJECT(aAtkObj)->accWrap.AsAccessible();
+    accWrap = static_cast<AccessibleWrap*>(acc);
+  } else {
+    accWrap = MAI_ATK_SOCKET(aAtkObj)->accWrap;
+  }
+
+  // Check if the accessible was deconstructed.
+  if (!accWrap)
+    return nullptr;
+
+  NS_ENSURE_TRUE(accWrap->GetAtkObject() == aAtkObj, nullptr);
+
+  AccessibleWrap* appAccWrap = ApplicationAcc();
+  if (appAccWrap != accWrap && !accWrap->IsValidObject())
+    return nullptr;
+
+  return accWrap;
+}
+
+ProxyAccessible*
+GetProxy(AtkObject* aObj)
+{
+  return GetInternalObj(aObj).AsProxy();
+}
+
+AccessibleOrProxy
+GetInternalObj(AtkObject* aObj)
+{
+  if (!aObj || !IS_MAI_OBJECT(aObj))
+    return nullptr;
+
+  return MAI_ATK_OBJECT(aObj)->accWrap;
+}
+
+AtkObject*
+GetWrapperFor(ProxyAccessible* aProxy)
+{
+  return reinterpret_cast<AtkObject*>(aProxy->GetWrapper() & ~IS_PROXY);
+}
+
+AtkObject*
+GetWrapperFor(AccessibleOrProxy aObj)
+{
+  if (aObj.IsProxy()) {
+    return GetWrapperFor(aObj.AsProxy());
+  }
+
+  return AccessibleWrap::GetAtkObject(aObj.AsAccessible());
+}
+
+static uint16_t
+GetInterfacesForProxy(ProxyAccessible* aProxy, uint32_t aInterfaces)
+{
+  uint16_t interfaces = 1 << MAI_INTERFACE_COMPONENT;
+  if (aInterfaces & Interfaces::HYPERTEXT)
+    interfaces |= (1 << MAI_INTERFACE_HYPERTEXT) | (1 << MAI_INTERFACE_TEXT)
+        | (1 << MAI_INTERFACE_EDITABLE_TEXT);
+
+  if (aInterfaces & Interfaces::HYPERLINK)
+    interfaces |= 1 << MAI_INTERFACE_HYPERLINK_IMPL;
+
+  if (aInterfaces & Interfaces::VALUE)
+    interfaces |= 1 << MAI_INTERFACE_VALUE;
+
+  if (aInterfaces & Interfaces::TABLE)
+    interfaces |= 1 << MAI_INTERFACE_TABLE;
+
+  if (aInterfaces & Interfaces::TABLECELL)
+    interfaces |= 1 << MAI_INTERFACE_TABLE_CELL;
+
+  if (aInterfaces & Interfaces::IMAGE)
+    interfaces |= 1 << MAI_INTERFACE_IMAGE;
+
+  if (aInterfaces & Interfaces::DOCUMENT)
+    interfaces |= 1 << MAI_INTERFACE_DOCUMENT;
+
+  if (aInterfaces & Interfaces::SELECTION) {
+    interfaces |= 1 << MAI_INTERFACE_SELECTION;
+  }
+
+  if (aInterfaces & Interfaces::ACTION) {
+    interfaces |= 1 << MAI_INTERFACE_ACTION;
+  }
+
+  return interfaces;
+}
+
+void
+a11y::ProxyCreated(ProxyAccessible* aProxy, uint32_t aInterfaces)
+{
+  GType type = GetMaiAtkType(GetInterfacesForProxy(aProxy, aInterfaces));
+  NS_ASSERTION(type, "why don't we have a type!");
+
+  AtkObject* obj =
+    reinterpret_cast<AtkObject *>
+    (g_object_new(type, nullptr));
+  if (!obj)
+    return;
+
+  uintptr_t inner = reinterpret_cast<uintptr_t>(aProxy) | IS_PROXY;
+  atk_object_initialize(obj, reinterpret_cast<gpointer>(inner));
+  obj->role = ATK_ROLE_INVALID;
+  obj->layer = ATK_LAYER_INVALID;
+  aProxy->SetWrapper(reinterpret_cast<uintptr_t>(obj) | IS_PROXY);
+}
+
+void
+a11y::ProxyDestroyed(ProxyAccessible* aProxy)
+{
+  auto obj = reinterpret_cast<MaiAtkObject*>(aProxy->GetWrapper() & ~IS_PROXY);
+  if (!obj) {
+    return;
+  }
+
+  obj->Shutdown();
+  g_object_unref(obj);
+  aProxy->SetWrapper(0);
+}
+
+nsresult
+AccessibleWrap::HandleAccEvent(AccEvent* aEvent)
+{
+  nsresult rv = Accessible::HandleAccEvent(aEvent);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  if (IPCAccessibilityActive()) {
+    return NS_OK;
+  }
+
+    Accessible* accessible = aEvent->GetAccessible();
+    NS_ENSURE_TRUE(accessible, NS_ERROR_FAILURE);
+
+    // The accessible can become defunct if we have an xpcom event listener
+    // which decides it would be fun to change the DOM and flush layout.
+    if (accessible->IsDefunct())
+        return NS_OK;
+
+    uint32_t type = aEvent->GetEventType();
+
+    AtkObject* atkObj = AccessibleWrap::GetAtkObject(accessible);
+
+  // We don't create ATK objects for plain text leaves, just return NS_OK in
+  // such case.
+    if (!atkObj) {
+        NS_ASSERTION(type == nsIAccessibleEvent::EVENT_SHOW ||
+                     type == nsIAccessibleEvent::EVENT_HIDE,
+                     "Event other than SHOW and HIDE fired for plain text leaves");
+        return NS_OK;
+    }
+
+    AccessibleWrap* accWrap = GetAccessibleWrap(atkObj);
+    if (!accWrap) {
+        return NS_OK; // Node is shut down
+    }
+
+    switch (type) {
+    case nsIAccessibleEvent::EVENT_STATE_CHANGE:
+      {
+        AccStateChangeEvent* event = downcast_accEvent(aEvent);
+        MAI_ATK_OBJECT(atkObj)->FireStateChangeEvent(event->GetState(),
+                                                     event->IsStateEnabled());
+        break;
+      }
+
+    case nsIAccessibleEvent::EVENT_TEXT_REMOVED:
+    case nsIAccessibleEvent::EVENT_TEXT_INSERTED:
+      {
+        AccTextChangeEvent* event = downcast_accEvent(aEvent);
+        NS_ENSURE_TRUE(event, NS_ERROR_FAILURE);
+
+        MAI_ATK_OBJECT(atkObj)-> FireTextChangeEvent(event->ModifiedText(),
+                                                     event->GetStartOffset(),
+                                                     event->GetLength(),
+                                                     event->IsTextInserted(),
+                                                     event->IsFromUserInput());
+
+        return NS_OK;
+      }
+
+    case nsIAccessibleEvent::EVENT_FOCUS:
+      {
+        a11y::RootAccessible* rootAccWrap = accWrap->RootAccessible();
+        if (rootAccWrap && rootAccWrap->mActivated) {
+            atk_focus_tracker_notify(atkObj);
+            // Fire state change event for focus
+            atk_object_notify_state_change(atkObj, ATK_STATE_FOCUSED, true);
+            return NS_OK;
+        }
+      } break;
+
+    case nsIAccessibleEvent::EVENT_NAME_CHANGE:
+      {
+        nsAutoString newName;
+        accessible->Name(newName);
+
+        MaybeFireNameChange(atkObj, newName);
+
+        break;
+      }
+
+  case nsIAccessibleEvent::EVENT_VALUE_CHANGE:
+  case nsIAccessibleEvent::EVENT_TEXT_VALUE_CHANGE:
+    if (accessible->HasNumericValue()) {
+      // Make sure this is a numeric value. Don't fire for string value changes
+      // (e.g. text editing) ATK values are always numeric.
+      g_object_notify((GObject*)atkObj, "accessible-value");
+    }
+    break;
+
+    case nsIAccessibleEvent::EVENT_SELECTION:
+    case nsIAccessibleEvent::EVENT_SELECTION_ADD:
+    case nsIAccessibleEvent::EVENT_SELECTION_REMOVE:
+    {
+      // XXX: dupe events may be fired
+      AccSelChangeEvent* selChangeEvent = downcast_accEvent(aEvent);
+      g_signal_emit_by_name(AccessibleWrap::GetAtkObject(selChangeEvent->Widget()),
+                            "selection_changed");
+      break;
+    }
+
+    case nsIAccessibleEvent::EVENT_SELECTION_WITHIN:
+    {
+      g_signal_emit_by_name(atkObj, "selection_changed");
+      break;
+    }
+
+    case nsIAccessibleEvent::EVENT_ALERT:
+      // A hack using state change showing events as alert events.
+      atk_object_notify_state_change(atkObj, ATK_STATE_SHOWING, true);
+      break;
+
+    case nsIAccessibleEvent::EVENT_TEXT_SELECTION_CHANGED:
+        g_signal_emit_by_name(atkObj, "text_selection_changed");
+        break;
+
+    case nsIAccessibleEvent::EVENT_TEXT_CARET_MOVED:
+      {
+        AccCaretMoveEvent* caretMoveEvent = downcast_accEvent(aEvent);
+        NS_ASSERTION(caretMoveEvent, "Event needs event data");
+        if (!caretMoveEvent)
+            break;
+
+        int32_t caretOffset = caretMoveEvent->GetCaretOffset();
+        g_signal_emit_by_name(atkObj, "text_caret_moved", caretOffset);
+      } break;
+
+    case nsIAccessibleEvent::EVENT_TEXT_ATTRIBUTE_CHANGED:
+        g_signal_emit_by_name(atkObj, "text-attributes-changed");
+        break;
+
+    case nsIAccessibleEvent::EVENT_TABLE_MODEL_CHANGED:
+        g_signal_emit_by_name(atkObj, "model_changed");
+        break;
+
+    case nsIAccessibleEvent::EVENT_TABLE_ROW_INSERT:
+      {
+        AccTableChangeEvent* tableEvent = downcast_accEvent(aEvent);
+        NS_ENSURE_TRUE(tableEvent, NS_ERROR_FAILURE);
+
+        int32_t rowIndex = tableEvent->GetIndex();
+        int32_t numRows = tableEvent->GetCount();
+
+        g_signal_emit_by_name(atkObj, "row_inserted", rowIndex, numRows);
+     } break;
+
+   case nsIAccessibleEvent::EVENT_TABLE_ROW_DELETE:
+     {
+        AccTableChangeEvent* tableEvent = downcast_accEvent(aEvent);
+        NS_ENSURE_TRUE(tableEvent, NS_ERROR_FAILURE);
+
+        int32_t rowIndex = tableEvent->GetIndex();
+        int32_t numRows = tableEvent->GetCount();
+
+        g_signal_emit_by_name(atkObj, "row_deleted", rowIndex, numRows);
+      } break;
+
+    case nsIAccessibleEvent::EVENT_TABLE_ROW_REORDER:
+      {
+        g_signal_emit_by_name(atkObj, "row_reordered");
+        break;
+      }
+
+    case nsIAccessibleEvent::EVENT_TABLE_COLUMN_INSERT:
+      {
+        AccTableChangeEvent* tableEvent = downcast_accEvent(aEvent);
+        NS_ENSURE_TRUE(tableEvent, NS_ERROR_FAILURE);
+
+        int32_t colIndex = tableEvent->GetIndex();
+        int32_t numCols = tableEvent->GetCount();
+        g_signal_emit_by_name(atkObj, "column_inserted", colIndex, numCols);
+      } break;
+
+    case nsIAccessibleEvent::EVENT_TABLE_COLUMN_DELETE:
+      {
+        AccTableChangeEvent* tableEvent = downcast_accEvent(aEvent);
+        NS_ENSURE_TRUE(tableEvent, NS_ERROR_FAILURE);
+
+        int32_t colIndex = tableEvent->GetIndex();
+        int32_t numCols = tableEvent->GetCount();
+        g_signal_emit_by_name(atkObj, "column_deleted", colIndex, numCols);
+      } break;
+
+    case nsIAccessibleEvent::EVENT_TABLE_COLUMN_REORDER:
+        g_signal_emit_by_name(atkObj, "column_reordered");
+        break;
+
+    case nsIAccessibleEvent::EVENT_SECTION_CHANGED:
+        g_signal_emit_by_name(atkObj, "visible_data_changed");
+        break;
+
+    case nsIAccessibleEvent::EVENT_SHOW:
+      {
+        AccMutationEvent* event = downcast_accEvent(aEvent);
+        Accessible* parentAcc = event ? event->Parent() : accessible->Parent();
+        AtkObject* parent = AccessibleWrap::GetAtkObject(parentAcc);
+        NS_ENSURE_STATE(parent);
+        auto obj = reinterpret_cast<MaiAtkObject*>(atkObj);
+        obj->FireAtkShowHideEvent(parent, true, aEvent->IsFromUserInput());
+        return NS_OK;
+      }
+
+    case nsIAccessibleEvent::EVENT_HIDE:
+      {
+        // XXX - Handle native dialog accessibles.
+        if (!accessible->IsRoot() && accessible->HasARIARole() &&
+            accessible->ARIARole() == roles::DIALOG) {
+          guint id = g_signal_lookup("deactivate", MAI_TYPE_ATK_OBJECT);
+          g_signal_emit(atkObj, id, 0);
+        }
+
+        AccMutationEvent* event = downcast_accEvent(aEvent);
+        Accessible* parentAcc = event ? event->Parent() : accessible->Parent();
+        AtkObject* parent = AccessibleWrap::GetAtkObject(parentAcc);
+        NS_ENSURE_STATE(parent);
+        auto obj = reinterpret_cast<MaiAtkObject*>(atkObj);
+        obj->FireAtkShowHideEvent(parent, false, aEvent->IsFromUserInput());
+        return NS_OK;
+      }
+
+        /*
+         * Because dealing with menu is very different between nsIAccessible
+         * and ATK, and the menu activity is important, specially transfer the
+         * following two event.
+         * Need more verification by AT test.
+         */
+    case nsIAccessibleEvent::EVENT_MENU_START:
+    case nsIAccessibleEvent::EVENT_MENU_END:
+        break;
+
+    case nsIAccessibleEvent::EVENT_WINDOW_ACTIVATE:
+      {
+        accessible->AsRoot()->mActivated = true;
+        guint id = g_signal_lookup("activate", MAI_TYPE_ATK_OBJECT);
+        g_signal_emit(atkObj, id, 0);
+
+        // Always fire a current focus event after activation.
+        FocusMgr()->ForceFocusEvent();
+      } break;
+
+    case nsIAccessibleEvent::EVENT_WINDOW_DEACTIVATE:
+      {
+        accessible->AsRoot()->mActivated = false;
+        guint id = g_signal_lookup("deactivate", MAI_TYPE_ATK_OBJECT);
+        g_signal_emit(atkObj, id, 0);
+      } break;
+
+    case nsIAccessibleEvent::EVENT_WINDOW_MAXIMIZE:
+      {
+        guint id = g_signal_lookup("maximize", MAI_TYPE_ATK_OBJECT);
+        g_signal_emit(atkObj, id, 0);
+      } break;
+
+    case nsIAccessibleEvent::EVENT_WINDOW_MINIMIZE:
+      {
+        guint id = g_signal_lookup("minimize", MAI_TYPE_ATK_OBJECT);
+        g_signal_emit(atkObj, id, 0);
+      } break;
+
+    case nsIAccessibleEvent::EVENT_WINDOW_RESTORE:
+      {
+        guint id = g_signal_lookup("restore", MAI_TYPE_ATK_OBJECT);
+        g_signal_emit(atkObj, id, 0);
+      } break;
+
+    case nsIAccessibleEvent::EVENT_DOCUMENT_LOAD_COMPLETE:
+        g_signal_emit_by_name (atkObj, "load_complete");
+        // XXX - Handle native dialog accessibles.
+        if (!accessible->IsRoot() && accessible->HasARIARole() &&
+            accessible->ARIARole() == roles::DIALOG) {
+          guint id = g_signal_lookup("activate", MAI_TYPE_ATK_OBJECT);
+          g_signal_emit(atkObj, id, 0);
+        }
+      break;
+
+    case nsIAccessibleEvent::EVENT_DOCUMENT_RELOAD:
+        g_signal_emit_by_name (atkObj, "reload");
+      break;
+
+    case nsIAccessibleEvent::EVENT_DOCUMENT_LOAD_STOPPED:
+        g_signal_emit_by_name (atkObj, "load_stopped");
+      break;
+
+    case nsIAccessibleEvent::EVENT_MENUPOPUP_START:
+        atk_focus_tracker_notify(atkObj); // fire extra focus event
+        atk_object_notify_state_change(atkObj, ATK_STATE_VISIBLE, true);
+        atk_object_notify_state_change(atkObj, ATK_STATE_SHOWING, true);
+        break;
+
+    case nsIAccessibleEvent::EVENT_MENUPOPUP_END:
+        atk_object_notify_state_change(atkObj, ATK_STATE_VISIBLE, false);
+        atk_object_notify_state_change(atkObj, ATK_STATE_SHOWING, false);
+        break;
+    }
+
+    return NS_OK;
+}
+
+void
+a11y::ProxyEvent(ProxyAccessible* aTarget, uint32_t aEventType)
+{
+  AtkObject* wrapper = GetWrapperFor(aTarget);
+
+  switch (aEventType) {
+  case nsIAccessibleEvent::EVENT_FOCUS:
+    atk_focus_tracker_notify(wrapper);
+    atk_object_notify_state_change(wrapper, ATK_STATE_FOCUSED, true);
+    break;
+  case nsIAccessibleEvent::EVENT_DOCUMENT_LOAD_COMPLETE:
+    g_signal_emit_by_name(wrapper, "load_complete");
+    break;
+  case nsIAccessibleEvent::EVENT_DOCUMENT_RELOAD:
+    g_signal_emit_by_name(wrapper, "reload");
+    break;
+  case nsIAccessibleEvent::EVENT_DOCUMENT_LOAD_STOPPED:
+    g_signal_emit_by_name(wrapper, "load_stopped");
+    break;
+  case nsIAccessibleEvent::EVENT_MENUPOPUP_START:
+    atk_focus_tracker_notify(wrapper); // fire extra focus event
+    atk_object_notify_state_change(wrapper, ATK_STATE_VISIBLE, true);
+    atk_object_notify_state_change(wrapper, ATK_STATE_SHOWING, true);
+    break;
+  case nsIAccessibleEvent::EVENT_MENUPOPUP_END:
+    atk_object_notify_state_change(wrapper, ATK_STATE_VISIBLE, false);
+    atk_object_notify_state_change(wrapper, ATK_STATE_SHOWING, false);
+    break;
+  case nsIAccessibleEvent::EVENT_ALERT:
+    // A hack using state change showing events as alert events.
+    atk_object_notify_state_change(wrapper, ATK_STATE_SHOWING, true);
+    break;
+  case nsIAccessibleEvent::EVENT_VALUE_CHANGE:
+    g_object_notify((GObject*)wrapper, "accessible-value");
+    break;
+  case nsIAccessibleEvent::EVENT_TEXT_SELECTION_CHANGED:
+  case nsIAccessibleEvent::EVENT_SELECTION_WITHIN:
+    g_signal_emit_by_name(wrapper, "selection_changed");
+    break;
+  }
+}
+
+void
+a11y::ProxyStateChangeEvent(ProxyAccessible* aTarget, uint64_t aState,
+                            bool aEnabled)
+{
+  MaiAtkObject* atkObj = MAI_ATK_OBJECT(GetWrapperFor(aTarget));
+  atkObj->FireStateChangeEvent(aState, aEnabled);
+}
+
+void
+a11y::ProxyCaretMoveEvent(ProxyAccessible* aTarget, int32_t aOffset)
+{
+  AtkObject* wrapper = GetWrapperFor(aTarget);
+  g_signal_emit_by_name(wrapper, "text_caret_moved", aOffset);
+}
+
+void
+MaiAtkObject::FireStateChangeEvent(uint64_t aState, bool aEnabled)
+{
+    int32_t stateIndex = AtkStateMap::GetStateIndexFor(aState);
+    if (stateIndex >= 0) {
+        NS_ASSERTION(gAtkStateMap[stateIndex].stateMapEntryType != kNoSuchState,
+                     "No such state");
+
+        if (gAtkStateMap[stateIndex].atkState != kNone) {
+            NS_ASSERTION(gAtkStateMap[stateIndex].stateMapEntryType != kNoStateChange,
+                         "State changes should not fired for this state");
+
+            if (gAtkStateMap[stateIndex].stateMapEntryType == kMapOpposite)
+                aEnabled = !aEnabled;
+
+            // Fire state change for first state if there is one to map
+            atk_object_notify_state_change(&parent,
+                                           gAtkStateMap[stateIndex].atkState,
+                                           aEnabled);
+        }
+    }
+}
+
+void
+a11y::ProxyTextChangeEvent(ProxyAccessible* aTarget, const nsString& aStr,
+                           int32_t aStart, uint32_t aLen, bool aIsInsert,
+                           bool aFromUser)
+{
+  MaiAtkObject* atkObj = MAI_ATK_OBJECT(GetWrapperFor(aTarget));
+  atkObj->FireTextChangeEvent(aStr, aStart, aLen, aIsInsert, aFromUser);
+}
+
+#define OLD_TEXT_INSERTED "text_changed::insert"
+#define OLD_TEXT_REMOVED "text_changed::delete"
+static const char* oldTextChangeStrings[2][2] = {
+  { OLD_TEXT_REMOVED NON_USER_EVENT, OLD_TEXT_INSERTED NON_USER_EVENT },
+  { OLD_TEXT_REMOVED, OLD_TEXT_INSERTED }
+};
+
+#define TEXT_INSERTED "text-insert"
+#define TEXT_REMOVED "text-remove"
+#define NON_USER_DETAIL "::system"
+static const char* textChangedStrings[2][2] = {
+  { TEXT_REMOVED NON_USER_DETAIL, TEXT_INSERTED NON_USER_DETAIL },
+  { TEXT_REMOVED, TEXT_INSERTED}
+};
+
+void
+MaiAtkObject::FireTextChangeEvent(const nsString& aStr, int32_t aStart,
+                                  uint32_t aLen, bool aIsInsert,
+                                  bool aFromUser)
+{
+  if (gAvailableAtkSignals == eUnknown)
+    gAvailableAtkSignals =
+      g_signal_lookup("text-insert", G_OBJECT_TYPE(this)) ?
+        eHaveNewAtkTextSignals : eNoNewAtkSignals;
+
+  if (gAvailableAtkSignals == eNoNewAtkSignals) {
+    // XXX remove this code and the gHaveNewTextSignals check when we can
+    // stop supporting old atk since it doesn't really work anyway
+    // see bug 619002
+    const char* signal_name =
+      oldTextChangeStrings[aFromUser][aIsInsert];
+    g_signal_emit_by_name(this, signal_name, aStart, aLen);
+  } else {
+    const char* signal_name =
+      textChangedStrings[aFromUser][aIsInsert];
+    g_signal_emit_by_name(this, signal_name, aStart, aLen,
+                          NS_ConvertUTF16toUTF8(aStr).get());
+  }
+}
+
+void
+a11y::ProxyShowHideEvent(ProxyAccessible* aTarget, ProxyAccessible* aParent,
+                         bool aInsert, bool aFromUser)
+{
+  MaiAtkObject* obj = MAI_ATK_OBJECT(GetWrapperFor(aTarget));
+  obj->FireAtkShowHideEvent(GetWrapperFor(aParent), aInsert, aFromUser);
+}
+
+#define ADD_EVENT "children_changed::add"
+#define HIDE_EVENT "children_changed::remove"
+
+static const char *kMutationStrings[2][2] = {
+  { HIDE_EVENT NON_USER_EVENT, ADD_EVENT NON_USER_EVENT },
+  { HIDE_EVENT, ADD_EVENT },
+};
+
+void
+MaiAtkObject::FireAtkShowHideEvent(AtkObject* aParent, bool aIsAdded,
+                                   bool aFromUser)
+{
+    int32_t indexInParent = getIndexInParentCB(&this->parent);
+    const char *signal_name = kMutationStrings[aFromUser][aIsAdded];
+    g_signal_emit_by_name(aParent, signal_name, indexInParent, this, nullptr);
+}
+
+void
+a11y::ProxySelectionEvent(ProxyAccessible*, ProxyAccessible* aWidget, uint32_t)
+{
+  MaiAtkObject* obj = MAI_ATK_OBJECT(GetWrapperFor(aWidget));
+    g_signal_emit_by_name(obj, "selection_changed");
+}
+
+// static
+void
+AccessibleWrap::GetKeyBinding(Accessible* aAccessible, nsAString& aResult)
+{
+  // Return all key bindings including access key and keyboard shortcut.
+
+  // Get access key.
+  nsAutoString keyBindingsStr;
+  KeyBinding keyBinding = aAccessible->AccessKey();
+  if (!keyBinding.IsEmpty()) {
+    keyBinding.AppendToString(keyBindingsStr, KeyBinding::eAtkFormat);
+
+    Accessible* parent = aAccessible->Parent();
+    roles::Role role = parent ? parent->Role() : roles::NOTHING;
+    if (role == roles::PARENT_MENUITEM || role == roles::MENUITEM ||
+        role == roles::RADIO_MENU_ITEM || role == roles::CHECK_MENU_ITEM) {
+      // It is submenu, expose keyboard shortcuts from menu hierarchy like
+      // "s;<Alt>f:s"
+      nsAutoString keysInHierarchyStr = keyBindingsStr;
+      do {
+        KeyBinding parentKeyBinding = parent->AccessKey();
+        if (!parentKeyBinding.IsEmpty()) {
+          nsAutoString str;
+          parentKeyBinding.ToString(str, KeyBinding::eAtkFormat);
+          str.Append(':');
+
+          keysInHierarchyStr.Insert(str, 0);
+        }
+      } while ((parent = parent->Parent()) && parent->Role() != roles::MENUBAR);
+
+      keyBindingsStr.Append(';');
+      keyBindingsStr.Append(keysInHierarchyStr);
+    }
+  } else {
+    // No access key, add ';' to point this.
+    keyBindingsStr.Append(';');
+  }
+
+  // Get keyboard shortcut.
+  keyBindingsStr.Append(';');
+  keyBinding = aAccessible->KeyboardShortcut();
+  if (!keyBinding.IsEmpty()) {
+    keyBinding.AppendToString(keyBindingsStr, KeyBinding::eAtkFormat);
+  }
+  aResult = keyBindingsStr;
+}
+
+// static
+Accessible*
+AccessibleWrap::GetColumnHeader(TableAccessible* aAccessible, int32_t aColIdx)
+{
+  if (!aAccessible) {
+    return nullptr;
+  }
+
+  Accessible* cell = aAccessible->CellAt(0, aColIdx);
+  if (!cell) {
+    return nullptr;
+  }
+
+  // If the cell at the first row is column header then assume it is column
+  // header for all rows,
+  if (cell->Role() == roles::COLUMNHEADER) {
+    return cell;
+  }
+
+  // otherwise get column header for the data cell at the first row.
+  TableCellAccessible* tableCell = cell->AsTableCell();
+  if (!tableCell) {
+    return nullptr;
+  }
+
+  AutoTArray<Accessible*, 10> headerCells;
+  tableCell->ColHeaderCells(&headerCells);
+  if (headerCells.IsEmpty()) {
+    return nullptr;
+  }
+
+  return headerCells[0];
+}
+
+// static
+Accessible*
+AccessibleWrap::GetRowHeader(TableAccessible* aAccessible, int32_t aRowIdx)
+{
+  if (!aAccessible) {
+    return nullptr;
+  }
+
+  Accessible* cell = aAccessible->CellAt(aRowIdx, 0);
+  if (!cell) {
+    return nullptr;
+  }
+
+  // If the cell at the first column is row header then assume it is row
+  // header for all columns,
+  if (cell->Role() == roles::ROWHEADER) {
+    return cell;
+  }
+
+  // otherwise get row header for the data cell at the first column.
+  TableCellAccessible* tableCell = cell->AsTableCell();
+  if (!tableCell) {
+    return nullptr;
+  }
+
+  AutoTArray<Accessible*, 10> headerCells;
+  tableCell->RowHeaderCells(&headerCells);
+  if (headerCells.IsEmpty()) {
+    return nullptr;
+  }
+
+  return headerCells[0];
+}