1 files changed, 61 insertions, 0 deletions
diff --git a/accessible/windows/uia/UiaRoot.cpp b/accessible/windows/uia/UiaRoot.cpp
new file mode 100644
index 0000000000..0e8c86ce6a
--- /dev/null
+++ b/accessible/windows/uia/UiaRoot.cpp
@@ -0,0 +1,61 @@
+/* -*- 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 "UiaRoot.h"
+
+#include "MsaaRootAccessible.h"
+#include "RootAccessible.h"
+
+using namespace mozilla;
+using namespace mozilla::a11y;
+
+// UiaRoot
+
+Accessible* UiaRoot::Acc() {
+  auto* mr = static_cast<MsaaRootAccessible*>(this);
+  return static_cast<MsaaAccessible*>(mr)->Acc();
+}
+
+// IRawElementProviderFragmentRoot
+
+STDMETHODIMP
+UiaRoot::ElementProviderFromPoint(
+    double aX, double aY,
+    __RPC__deref_out_opt IRawElementProviderFragment** aRetVal) {
+  if (!aRetVal) {
+    return E_INVALIDARG;
+  }
+  *aRetVal = nullptr;
+  Accessible* acc = Acc();
+  if (!acc) {
+    return CO_E_OBJNOTCONNECTED;
+  }
+  if (Accessible* target = acc->ChildAtPoint(
+          aX, aY, Accessible::EWhichChildAtPoint::DeepestChild)) {
+    RefPtr<IRawElementProviderFragment> fragment =
+        MsaaAccessible::GetFrom(target);
+    fragment.forget(aRetVal);
+  }
+  return S_OK;
+}
+
+STDMETHODIMP
+UiaRoot::GetFocus(__RPC__deref_out_opt IRawElementProviderFragment** aRetVal) {
+  if (!aRetVal) {
+    return E_INVALIDARG;
+  }
+  *aRetVal = nullptr;
+  Accessible* acc = Acc();
+  if (!acc) {
+    return CO_E_OBJNOTCONNECTED;
+  }
+  if (Accessible* focus = acc->FocusedChild()) {
+    RefPtr<IRawElementProviderFragment> fragment =
+        MsaaAccessible::GetFrom(focus);
+    fragment.forget(aRetVal);
+  }
+  return S_OK;
+}