1 files changed, 99 insertions, 0 deletions
diff --git a/xpcom/ds/nsProperties.cpp b/xpcom/ds/nsProperties.cpp
new file mode 100644
index 0000000000..3a73ac7dac
--- /dev/null
+++ b/xpcom/ds/nsProperties.cpp
@@ -0,0 +1,99 @@
+/* -*- 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_AGGREGATED(nsProperties)
+NS_INTERFACE_MAP_BEGIN_AGGREGATED(nsProperties)
+  NS_INTERFACE_MAP_ENTRY(nsIProperties)
+NS_INTERFACE_MAP_END
+
+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;
+  }
+
+  nsCOMPtr<nsISupports> value;
+  if (!nsProperties_HashBase::Get(prop, getter_AddRefs(value))) {
+    return NS_ERROR_FAILURE;
+  }
+
+  Remove(prop);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProperties::Has(const char* prop, bool* result)
+{
+  if (NS_WARN_IF(!prop)) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  nsCOMPtr<nsISupports> value;
+  *result = nsProperties_HashBase::Get(prop, getter_AddRefs(value));
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProperties::GetKeys(uint32_t* aCount, char*** aKeys)
+{
+  if (NS_WARN_IF(!aCount) || NS_WARN_IF(!aKeys)) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  uint32_t count = Count();
+  char** keys = (char**)moz_xmalloc(count * sizeof(char*));
+  uint32_t j = 0;
+
+  for (auto iter = this->Iter(); !iter.Done(); iter.Next()) {
+    const char* key = iter.Key();
+    keys[j] = strdup(key);
+
+    if (!keys[j]) {
+      // Free 'em all
+      for (uint32_t i = 0; i < j; i++) {
+        free(keys[i]);
+      }
+      free(keys);
+      return NS_ERROR_OUT_OF_MEMORY;
+    }
+    j++;
+  }
+
+  *aCount = count;
+  *aKeys = keys;
+  return NS_OK;
+}
+
+////////////////////////////////////////////////////////////////////////////////