1 files changed, 59 insertions, 0 deletions
diff --git a/accessible/xpcom/nsAccessibleRelation.cpp b/accessible/xpcom/nsAccessibleRelation.cpp
new file mode 100644
index 0000000000..d376c15e91
--- /dev/null
+++ b/accessible/xpcom/nsAccessibleRelation.cpp
@@ -0,0 +1,59 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 "nsAccessibleRelation.h"
+
+#include "Relation.h"
+#include "xpcAccessibleDocument.h"
+
+#include "nsArrayUtils.h"
+#include "nsComponentManagerUtils.h"
+
+using namespace mozilla::a11y;
+
+nsAccessibleRelation::nsAccessibleRelation(uint32_t aType, Relation* aRel)
+    : mType(aType) {
+  mTargets = do_CreateInstance(NS_ARRAY_CONTRACTID);
+  Accessible* targetAcc = nullptr;
+  while ((targetAcc = aRel->Next())) {
+    mTargets->AppendElement(static_cast<nsIAccessible*>(ToXPC(targetAcc)));
+  }
+}
+
+nsAccessibleRelation::~nsAccessibleRelation() {}
+
+// nsISupports
+NS_IMPL_ISUPPORTS(nsAccessibleRelation, nsIAccessibleRelation)
+
+// nsIAccessibleRelation
+NS_IMETHODIMP
+nsAccessibleRelation::GetRelationType(uint32_t* aType) {
+  NS_ENSURE_ARG_POINTER(aType);
+  *aType = mType;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsAccessibleRelation::GetTargetsCount(uint32_t* aCount) {
+  NS_ENSURE_ARG_POINTER(aCount);
+  *aCount = 0;
+  return mTargets->GetLength(aCount);
+}
+
+NS_IMETHODIMP
+nsAccessibleRelation::GetTarget(uint32_t aIndex, nsIAccessible** aTarget) {
+  NS_ENSURE_ARG_POINTER(aTarget);
+  nsresult rv = NS_OK;
+  nsCOMPtr<nsIAccessible> target = do_QueryElementAt(mTargets, aIndex, &rv);
+  target.forget(aTarget);
+  return rv;
+}
+
+NS_IMETHODIMP
+nsAccessibleRelation::GetTargets(nsIArray** aTargets) {
+  NS_ENSURE_ARG_POINTER(aTargets);
+  NS_ADDREF(*aTargets = mTargets);
+  return NS_OK;
+}