1 files changed, 61 insertions, 0 deletions
diff --git a/widget/headless/HeadlessThemeGTK.h b/widget/headless/HeadlessThemeGTK.h
new file mode 100644
index 0000000000..11ca0a1f92
--- /dev/null
+++ b/widget/headless/HeadlessThemeGTK.h
@@ -0,0 +1,61 @@
+/* -*- 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/. */
+
+#ifndef mozilla_widget_HeadlessThemeGTK_h
+#define mozilla_widget_HeadlessThemeGTK_h
+
+#include "nsITheme.h"
+#include "nsNativeTheme.h"
+
+namespace mozilla {
+namespace widget {
+
+class HeadlessThemeGTK final : private nsNativeTheme, public nsITheme {
+ public:
+  NS_DECL_ISUPPORTS_INHERITED
+
+  HeadlessThemeGTK() = default;
+  NS_IMETHOD DrawWidgetBackground(gfxContext* aContext, nsIFrame* aFrame,
+                                  StyleAppearance aAppearance,
+                                  const nsRect& aRect,
+                                  const nsRect& aDirtyRect) override;
+
+  [[nodiscard]] LayoutDeviceIntMargin GetWidgetBorder(
+      nsDeviceContext* aContext, nsIFrame* aFrame,
+      StyleAppearance aAppearance) override;
+
+  bool GetWidgetPadding(nsDeviceContext* aContext, nsIFrame* aFrame,
+                        StyleAppearance aAppearance,
+                        LayoutDeviceIntMargin* aResult) override;
+  NS_IMETHOD GetMinimumWidgetSize(nsPresContext* aPresContext, nsIFrame* aFrame,
+                                  StyleAppearance aAppearance,
+                                  mozilla::LayoutDeviceIntSize* aResult,
+                                  bool* aIsOverridable) override;
+
+  NS_IMETHOD WidgetStateChanged(nsIFrame* aFrame, StyleAppearance aAppearance,
+                                nsAtom* aAttribute, bool* aShouldRepaint,
+                                const nsAttrValue* aOldValue) override;
+
+  NS_IMETHOD ThemeChanged() override;
+
+  NS_IMETHOD_(bool)
+  ThemeSupportsWidget(nsPresContext* aPresContext, nsIFrame* aFrame,
+                      StyleAppearance aAppearance) override;
+
+  NS_IMETHOD_(bool) WidgetIsContainer(StyleAppearance aAppearance) override;
+
+  NS_IMETHOD_(bool)
+  ThemeDrawsFocusForWidget(StyleAppearance aAppearance) override;
+
+  virtual bool ThemeNeedsComboboxDropmarker() override;
+
+ protected:
+  virtual ~HeadlessThemeGTK() = default;
+};
+
+}  // namespace widget
+}  // namespace mozilla
+
+#endif  // mozilla_widget_HeadlessThemeGTK_h