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-rw-r--r--xpcom/ds/nsWindowsRegKey.cpp288
1 files changed, 288 insertions, 0 deletions
diff --git a/xpcom/ds/nsWindowsRegKey.cpp b/xpcom/ds/nsWindowsRegKey.cpp
new file mode 100644
index 0000000000..85520a8af9
--- /dev/null
+++ b/xpcom/ds/nsWindowsRegKey.cpp
@@ -0,0 +1,288 @@
+/* -*- 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 <windows.h>
+#include "nsCOMPtr.h"
+#include "nsWindowsRegKey.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/widget/WinRegistry.h"
+
+//-----------------------------------------------------------------------------
+
+using namespace mozilla::widget;
+
+class nsWindowsRegKey final : public nsIWindowsRegKey {
+ public:
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSIWINDOWSREGKEY
+
+ nsWindowsRegKey() = default;
+
+ private:
+ ~nsWindowsRegKey() = default;
+
+ WinRegistry::Key mKey;
+};
+
+NS_IMPL_ISUPPORTS(nsWindowsRegKey, nsIWindowsRegKey)
+
+NS_IMETHODIMP
+nsWindowsRegKey::Close() {
+ mKey = WinRegistry::Key();
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::Open(uint32_t aRootKey, const nsAString& aPath,
+ uint32_t aMode) {
+ mKey = WinRegistry::Key((HKEY)(uintptr_t)(aRootKey), PromiseFlatString(aPath),
+ WinRegistry::KeyMode(aMode));
+ return mKey ? NS_OK : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::Create(uint32_t aRootKey, const nsAString& aPath,
+ uint32_t aMode) {
+ mKey =
+ WinRegistry::Key((HKEY)(uintptr_t)(aRootKey), PromiseFlatString(aPath),
+ WinRegistry::KeyMode(aMode), WinRegistry::Key::Create);
+ return mKey ? NS_OK : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::OpenChild(const nsAString& aPath, uint32_t aMode,
+ nsIWindowsRegKey** aResult) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+
+ RefPtr<nsWindowsRegKey> child = new nsWindowsRegKey();
+ child->mKey = WinRegistry::Key(mKey, PromiseFlatString(aPath),
+ WinRegistry::KeyMode(aMode));
+ if (!child->mKey) {
+ return NS_ERROR_FAILURE;
+ }
+ child.forget(aResult);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::CreateChild(const nsAString& aPath, uint32_t aMode,
+ nsIWindowsRegKey** aResult) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+
+ RefPtr<nsWindowsRegKey> child = new nsWindowsRegKey();
+ child->mKey =
+ WinRegistry::Key(mKey, PromiseFlatString(aPath),
+ WinRegistry::KeyMode(aMode), WinRegistry::Key::Create);
+ if (!child->mKey) {
+ return NS_ERROR_FAILURE;
+ }
+ child.forget(aResult);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::GetChildCount(uint32_t* aResult) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ *aResult = mKey.GetChildCount();
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::GetChildName(uint32_t aIndex, nsAString& aResult) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ return mKey.GetChildName(aIndex, aResult) ? NS_OK : NS_ERROR_NOT_AVAILABLE;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::HasChild(const nsAString& aName, bool* aResult) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ // Check for the existence of a child key by opening the key with minimal
+ // rights. Perhaps there is a more efficient way to do this?
+ *aResult = !!WinRegistry::Key(mKey, PromiseFlatString(aName),
+ WinRegistry::KeyMode::Read);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::GetValueCount(uint32_t* aResult) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ *aResult = mKey.GetValueCount();
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::GetValueName(uint32_t aIndex, nsAString& aResult) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ return mKey.GetValueName(aIndex, aResult) ? NS_OK : NS_ERROR_NOT_AVAILABLE;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::HasValue(const nsAString& aName, bool* aResult) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ *aResult = mKey.GetValueType(PromiseFlatString(aName)) !=
+ WinRegistry::ValueType::None;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::RemoveChild(const nsAString& aName) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ return mKey.RemoveChildKey(PromiseFlatString(aName)) ? NS_OK
+ : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::RemoveValue(const nsAString& aName) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ return mKey.RemoveValue(PromiseFlatString(aName)) ? NS_OK : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::GetValueType(const nsAString& aName, uint32_t* aResult) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ *aResult = uint32_t(mKey.GetValueType(PromiseFlatString(aName)));
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::ReadStringValue(const nsAString& aName, nsAString& aResult) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ constexpr auto kFlags = WinRegistry::StringFlags::Sz |
+ WinRegistry::StringFlags::ExpandSz |
+ WinRegistry::StringFlags::LegacyMultiSz |
+ WinRegistry::StringFlags::ExpandEnvironment;
+ auto value = mKey.GetValueAsString(PromiseFlatString(aName), kFlags);
+ if (!value) {
+ return NS_ERROR_FAILURE;
+ }
+ aResult = value.extract();
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::ReadIntValue(const nsAString& aName, uint32_t* aResult) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ auto value = mKey.GetValueAsDword(PromiseFlatString(aName));
+ if (!value) {
+ return NS_ERROR_FAILURE;
+ }
+ *aResult = value.extract();
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::ReadInt64Value(const nsAString& aName, uint64_t* aResult) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ auto value = mKey.GetValueAsQword(PromiseFlatString(aName));
+ if (!value) {
+ return NS_ERROR_FAILURE;
+ }
+ *aResult = value.extract();
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::ReadBinaryValue(const nsAString& aName, nsACString& aResult) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ auto value = mKey.GetValueAsBinary(PromiseFlatString(aName));
+ if (!value) {
+ return NS_ERROR_FAILURE;
+ }
+ nsTArray<uint8_t> data = value.extract();
+ if (!aResult.Assign((const char*)data.Elements(), data.Length(),
+ mozilla::fallible)) {
+ return NS_ERROR_OUT_OF_MEMORY;
+ }
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::WriteStringValue(const nsAString& aName,
+ const nsAString& aValue) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ return mKey.WriteValueAsString(PromiseFlatString(aName),
+ PromiseFlatString(aValue))
+ ? NS_OK
+ : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::WriteIntValue(const nsAString& aName, uint32_t aValue) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ return mKey.WriteValueAsDword(PromiseFlatString(aName), aValue)
+ ? NS_OK
+ : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::WriteInt64Value(const nsAString& aName, uint64_t aValue) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ return mKey.WriteValueAsQword(PromiseFlatString(aName), aValue)
+ ? NS_OK
+ : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsWindowsRegKey::WriteBinaryValue(const nsAString& aName,
+ const nsACString& aValue) {
+ if (NS_WARN_IF(!mKey)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ return mKey.WriteValueAsBinary(PromiseFlatString(aName), aValue)
+ ? NS_OK
+ : NS_ERROR_FAILURE;
+}
+
+//-----------------------------------------------------------------------------
+
+void NS_NewWindowsRegKey(nsIWindowsRegKey** aResult) {
+ RefPtr<nsWindowsRegKey> key = new nsWindowsRegKey();
+ key.forget(aResult);
+}
+
+//-----------------------------------------------------------------------------
+
+nsresult nsWindowsRegKeyConstructor(const nsIID& aIID, void** aResult) {
+ nsCOMPtr<nsIWindowsRegKey> key;
+ NS_NewWindowsRegKey(getter_AddRefs(key));
+ return key->QueryInterface(aIID, aResult);
+}
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