diff -r 000000000000 -r 6474c204b198 accessible/src/atk/nsMaiInterfaceHypertext.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/accessible/src/atk/nsMaiInterfaceHypertext.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,79 @@
+/* -*- 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 "InterfaceInitFuncs.h"
+
+#include "Accessible-inl.h"
+#include "HyperTextAccessible.h"
+#include "nsMai.h"
+#include "nsMaiHyperlink.h"
+#include "mozilla/Likely.h"
+
+using namespace mozilla::a11y;
+
+extern "C" {
+
+static AtkHyperlink*
+getLinkCB(AtkHypertext *aText, gint aLinkIndex)
+{
+  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
+  if (!accWrap)
+    return nullptr;
+
+  HyperTextAccessible* hyperText = accWrap->AsHyperText();
+  NS_ENSURE_TRUE(hyperText, nullptr);
+
+  Accessible* hyperLink = hyperText->LinkAt(aLinkIndex);
+  if (!hyperLink)
+    return nullptr;
+
+  AtkObject* hyperLinkAtkObj = AccessibleWrap::GetAtkObject(hyperLink);
+  AccessibleWrap* accChild = GetAccessibleWrap(hyperLinkAtkObj);
+  NS_ENSURE_TRUE(accChild, nullptr);
+
+  MaiHyperlink *maiHyperlink = accChild->GetMaiHyperlink();
+  NS_ENSURE_TRUE(maiHyperlink, nullptr);
+  return maiHyperlink->GetAtkHyperlink();
+}
+
+static gint
+getLinkCountCB(AtkHypertext *aText)
+{
+  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
+  if (!accWrap)
+    return -1;
+
+  HyperTextAccessible* hyperText = accWrap->AsHyperText();
+  NS_ENSURE_TRUE(hyperText, -1);
+
+  return hyperText->LinkCount();
+}
+
+static gint
+getLinkIndexCB(AtkHypertext *aText, gint aCharIndex)
+{
+  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
+  if (!accWrap)
+    return -1;
+
+  HyperTextAccessible* hyperText = accWrap->AsHyperText();
+  NS_ENSURE_TRUE(hyperText, -1);
+
+  return hyperText->LinkIndexAtOffset(aCharIndex);
+}
+}
+
+void
+hypertextInterfaceInitCB(AtkHypertextIface* aIface)
+{
+  NS_ASSERTION(aIface, "no interface!");
+  if (MOZ_UNLIKELY(!aIface))
+    return;
+
+  aIface->get_link = getLinkCB;
+  aIface->get_n_links = getLinkCountCB;
+  aIface->get_link_index = getLinkIndexCB;
+}