1 files changed, 83 insertions, 0 deletions
diff --git a/accessible/atk/nsMaiInterfaceHypertext.cpp b/accessible/atk/nsMaiInterfaceHypertext.cpp
new file mode 100644
index 0000000000..a590ee95ef
--- /dev/null
+++ b/accessible/atk/nsMaiInterfaceHypertext.cpp
@@ -0,0 +1,83 @@
+/* -*- 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 "ProxyAccessible.h"
+#include "mozilla/Likely.h"
+
+using namespace mozilla::a11y;
+
+extern "C" {
+
+static AtkHyperlink* getLinkCB(AtkHypertext* aText, gint aLinkIndex) {
+  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
+  AtkObject* atkHyperLink = nullptr;
+  if (accWrap) {
+    HyperTextAccessible* hyperText = accWrap->AsHyperText();
+    NS_ENSURE_TRUE(hyperText, nullptr);
+
+    Accessible* hyperLink = hyperText->LinkAt(aLinkIndex);
+    if (!hyperLink || !hyperLink->IsLink()) {
+      return nullptr;
+    }
+
+    atkHyperLink = AccessibleWrap::GetAtkObject(hyperLink);
+  } else if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
+    ProxyAccessible* proxyLink = proxy->LinkAt(aLinkIndex);
+    if (!proxyLink) return nullptr;
+
+    atkHyperLink = GetWrapperFor(proxyLink);
+  }
+
+  NS_ENSURE_TRUE(IS_MAI_OBJECT(atkHyperLink), nullptr);
+  return MAI_ATK_OBJECT(atkHyperLink)->GetAtkHyperlink();
+}
+
+static gint getLinkCountCB(AtkHypertext* aText) {
+  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
+  if (accWrap) {
+    HyperTextAccessible* hyperText = accWrap->AsHyperText();
+    NS_ENSURE_TRUE(hyperText, -1);
+    return hyperText->LinkCount();
+  }
+
+  if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
+    return proxy->LinkCount();
+  }
+
+  return -1;
+}
+
+static gint getLinkIndexCB(AtkHypertext* aText, gint aCharIndex) {
+  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
+  if (accWrap) {
+    HyperTextAccessible* hyperText = accWrap->AsHyperText();
+    NS_ENSURE_TRUE(hyperText, -1);
+
+    return hyperText->LinkIndexAtOffset(aCharIndex);
+  }
+
+  if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
+    return proxy->LinkIndexAtOffset(aCharIndex);
+  }
+
+  return -1;
+}
+}
+
+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;
+}