1 files changed, 98 insertions, 0 deletions
diff --git a/widget/windows/nsUXThemeData.cpp b/widget/windows/nsUXThemeData.cpp
new file mode 100644
index 0000000000..b3f9e6fce9
--- /dev/null
+++ b/widget/windows/nsUXThemeData.cpp
@@ -0,0 +1,98 @@
+/* vim: se cin sw=2 ts=2 et : */
+/* -*- 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 "mozilla/ArrayUtils.h"
+#include "mozilla/WindowsVersion.h"
+
+#include "nsUXThemeData.h"
+#include "nsDebug.h"
+#include "nsToolkit.h"
+#include "nsUXThemeConstants.h"
+#include "gfxWindowsPlatform.h"
+
+using namespace mozilla;
+using namespace mozilla::widget;
+
+nsUXThemeData::ThemeHandle nsUXThemeData::sThemes[eUXNumClasses];
+
+nsUXThemeData::ThemeHandle::~ThemeHandle() { Close(); }
+
+void nsUXThemeData::ThemeHandle::OpenOnce(HWND aWindow, LPCWSTR aClassList) {
+  if (mHandle.isSome()) {
+    return;
+  }
+
+  mHandle = Some(OpenThemeData(aWindow, aClassList));
+}
+
+void nsUXThemeData::ThemeHandle::Close() {
+  if (mHandle.isNothing()) {
+    return;
+  }
+
+  if (HANDLE rawHandle = mHandle.extract()) {
+    CloseThemeData(rawHandle);
+  }
+}
+
+nsUXThemeData::ThemeHandle::operator HANDLE() {
+  return mHandle.valueOr(nullptr);
+}
+
+void nsUXThemeData::Invalidate() {
+  for (auto& theme : sThemes) {
+    theme.Close();
+  }
+}
+
+HANDLE
+nsUXThemeData::GetTheme(nsUXThemeClass cls) {
+  NS_ASSERTION(cls < eUXNumClasses, "Invalid theme class!");
+  sThemes[cls].OpenOnce(nullptr, GetClassName(cls));
+  return sThemes[cls];
+}
+
+const wchar_t* nsUXThemeData::GetClassName(nsUXThemeClass cls) {
+  switch (cls) {
+    case eUXButton:
+      return L"Button";
+    case eUXEdit:
+      return L"Edit";
+    case eUXRebar:
+      return L"Rebar";
+    case eUXToolbar:
+      return L"Toolbar";
+    case eUXProgress:
+      return L"Progress";
+    case eUXTab:
+      return L"Tab";
+    case eUXTrackbar:
+      return L"Trackbar";
+    case eUXCombobox:
+      return L"Combobox";
+    case eUXHeader:
+      return L"Header";
+    case eUXListview:
+      return L"Listview";
+    case eUXMenu:
+      return L"Menu";
+    default:
+      MOZ_ASSERT_UNREACHABLE("unknown uxtheme class");
+      return L"";
+  }
+}
+
+bool nsUXThemeData::sIsHighContrastOn = false;
+
+// static
+void nsUXThemeData::UpdateNativeThemeInfo() {
+  HIGHCONTRAST highContrastInfo;
+  highContrastInfo.cbSize = sizeof(HIGHCONTRAST);
+  sIsHighContrastOn =
+      SystemParametersInfo(SPI_GETHIGHCONTRAST, 0, &highContrastInfo, 0) &&
+      highContrastInfo.dwFlags & HCF_HIGHCONTRASTON;
+}