1 files changed, 66 insertions, 0 deletions
diff --git a/xpcom/ds/nsProperties.cpp b/xpcom/ds/nsProperties.cpp
new file mode 100644
index 0000000000..2a480c1e8a
--- /dev/null
+++ b/xpcom/ds/nsProperties.cpp
@@ -0,0 +1,66 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=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 "nsProperties.h"
+
+////////////////////////////////////////////////////////////////////////////////
+
+NS_IMPL_ISUPPORTS(nsProperties, nsIProperties)
+
+NS_IMETHODIMP
+nsProperties::Get(const char* prop, const nsIID& uuid, void** result) {
+  if (NS_WARN_IF(!prop)) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  nsCOMPtr<nsISupports> value;
+  if (!nsProperties_HashBase::Get(prop, getter_AddRefs(value))) {
+    return NS_ERROR_FAILURE;
+  }
+  return (value) ? value->QueryInterface(uuid, result) : NS_ERROR_NO_INTERFACE;
+}
+
+NS_IMETHODIMP
+nsProperties::Set(const char* prop, nsISupports* value) {
+  if (NS_WARN_IF(!prop)) {
+    return NS_ERROR_INVALID_ARG;
+  }
+  Put(prop, value);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProperties::Undefine(const char* prop) {
+  if (NS_WARN_IF(!prop)) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  return nsProperties_HashBase::Remove(prop) ? NS_OK : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsProperties::Has(const char* prop, bool* result) {
+  if (NS_WARN_IF(!prop)) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  *result = nsProperties_HashBase::Contains(prop);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProperties::GetKeys(nsTArray<nsCString>& aKeys) {
+  uint32_t count = Count();
+  aKeys.SetCapacity(count);
+
+  for (auto iter = this->Iter(); !iter.Done(); iter.Next()) {
+    aKeys.AppendElement(iter.Key());
+  }
+
+  return NS_OK;
+}
+
+////////////////////////////////////////////////////////////////////////////////