diff -r 000000000000 -r 6474c204b198 accessible/src/atk/nsMaiInterfaceDocument.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/accessible/src/atk/nsMaiInterfaceDocument.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,122 @@
+/* -*- 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 "AccessibleWrap.h"
+#include "DocAccessible.h"
+#include "nsMai.h"
+#include "mozilla/Likely.h"
+
+using namespace mozilla::a11y;
+
+static const char* const kDocTypeName = "W3C-doctype";
+static const char* const kDocUrlName = "DocURL";
+static const char* const kMimeTypeName = "MimeType";
+
+// below functions are vfuncs on an ATK  interface so they need to be C call
+extern "C" {
+
+static const gchar* getDocumentLocaleCB(AtkDocument* aDocument);
+static AtkAttributeSet* getDocumentAttributesCB(AtkDocument* aDocument);
+static const gchar* getDocumentAttributeValueCB(AtkDocument* aDocument,
+                                                const gchar* aAttrName);
+
+void
+documentInterfaceInitCB(AtkDocumentIface *aIface)
+{
+    NS_ASSERTION(aIface, "Invalid Interface");
+    if(MOZ_UNLIKELY(!aIface))
+        return;
+
+    /*
+     * We don't support get_document or set_attribute right now.
+     * get_document_type is deprecated, we return DocType in
+     * get_document_attribute_value and get_document_attributes instead.
+     */
+    aIface->get_document_attributes = getDocumentAttributesCB;
+    aIface->get_document_attribute_value = getDocumentAttributeValueCB;
+    aIface->get_document_locale = getDocumentLocaleCB;
+}
+
+const gchar *
+getDocumentLocaleCB(AtkDocument *aDocument)
+{
+  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aDocument));
+  if (!accWrap)
+    return nullptr;
+
+  nsAutoString locale;
+  accWrap->Language(locale);
+  return locale.IsEmpty() ? nullptr : AccessibleWrap::ReturnString(locale);
+}
+
+static inline GSList *
+prependToList(GSList *aList, const char *const aName, const nsAutoString &aValue)
+{
+  if (aValue.IsEmpty())
+    return aList;
+
+    // libspi will free these
+    AtkAttribute *atkAttr = (AtkAttribute *)g_malloc(sizeof(AtkAttribute));
+    atkAttr->name = g_strdup(aName);
+    atkAttr->value = g_strdup(NS_ConvertUTF16toUTF8(aValue).get());
+    return g_slist_prepend(aList, atkAttr);
+}
+
+AtkAttributeSet *
+getDocumentAttributesCB(AtkDocument *aDocument)
+{
+  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aDocument));
+  if (!accWrap || !accWrap->IsDoc())
+    return nullptr;
+
+  // according to atkobject.h, AtkAttributeSet is a GSList
+  GSList* attributes = nullptr;
+  DocAccessible* document = accWrap->AsDoc();
+  nsAutoString aURL;
+  nsresult rv = document->GetURL(aURL);
+  if (NS_SUCCEEDED(rv))
+    attributes = prependToList(attributes, kDocUrlName, aURL);
+
+  nsAutoString aW3CDocType;
+  rv = document->GetDocType(aW3CDocType);
+  if (NS_SUCCEEDED(rv))
+    attributes = prependToList(attributes, kDocTypeName, aW3CDocType);
+
+  nsAutoString aMimeType;
+  rv = document->GetMimeType(aMimeType);
+  if (NS_SUCCEEDED(rv))
+    attributes = prependToList(attributes, kMimeTypeName, aMimeType);
+
+  return attributes;
+}
+
+const gchar *
+getDocumentAttributeValueCB(AtkDocument *aDocument,
+                            const gchar *aAttrName)
+{
+  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aDocument));
+  if (!accWrap || !accWrap->IsDoc())
+    return nullptr;
+
+  DocAccessible* document = accWrap->AsDoc();
+  nsresult rv;
+  nsAutoString attrValue;
+  if (!strcasecmp(aAttrName, kDocTypeName))
+    rv = document->GetDocType(attrValue);
+  else if (!strcasecmp(aAttrName, kDocUrlName))
+    rv = document->GetURL(attrValue);
+  else if (!strcasecmp(aAttrName, kMimeTypeName))
+    rv = document->GetMimeType(attrValue);
+  else
+    return nullptr;
+
+  NS_ENSURE_SUCCESS(rv, nullptr);
+  return attrValue.IsEmpty() ? nullptr : AccessibleWrap::ReturnString(attrValue);
+}
+}