1 files changed, 116 insertions, 0 deletions
diff --git a/widget/gtk/nsNativeThemeGTK.h b/widget/gtk/nsNativeThemeGTK.h
new file mode 100644
index 0000000000..8b86625bda
--- /dev/null
+++ b/widget/gtk/nsNativeThemeGTK.h
@@ -0,0 +1,116 @@
+/* -*- 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 _GTK_NSNATIVETHEMEGTK_H_
+#define _GTK_NSNATIVETHEMEGTK_H_
+
+#include "nsITheme.h"
+#include "nsCOMPtr.h"
+#include "nsAtom.h"
+#include "nsIObserver.h"
+#include "nsNativeTheme.h"
+#include "nsStyleConsts.h"
+
+#include <gtk/gtk.h>
+#include "gtkdrawing.h"
+
+class nsNativeThemeGTK final : private nsNativeTheme,
+                               public nsITheme,
+                               public nsIObserver {
+ public:
+  NS_DECL_ISUPPORTS_INHERITED
+
+  NS_DECL_NSIOBSERVER
+
+  // The nsITheme interface.
+  NS_IMETHOD DrawWidgetBackground(gfxContext* aContext, nsIFrame* aFrame,
+                                  StyleAppearance aAppearance,
+                                  const nsRect& aRect,
+                                  const nsRect& aDirtyRect) override;
+
+  bool CreateWebRenderCommandsForWidget(
+      mozilla::wr::DisplayListBuilder& aBuilder,
+      mozilla::wr::IpcResourceUpdateQueue& aResources,
+      const mozilla::layers::StackingContextHelper& aSc,
+      mozilla::layers::RenderRootStateManager* aManager, nsIFrame* aFrame,
+      StyleAppearance aAppearance, const nsRect& aRect) override;
+
+  [[nodiscard]] LayoutDeviceIntMargin GetWidgetBorder(
+      nsDeviceContext* aContext, nsIFrame* aFrame,
+      StyleAppearance aAppearance) override;
+
+  bool GetWidgetPadding(nsDeviceContext* aContext, nsIFrame* aFrame,
+                        StyleAppearance aAppearance,
+                        LayoutDeviceIntMargin* aResult) override;
+
+  virtual bool GetWidgetOverflow(nsDeviceContext* aContext, nsIFrame* aFrame,
+                                 StyleAppearance aAppearance,
+                                 nsRect* aOverflowRect) 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;
+
+  virtual Transparency GetWidgetTransparency(
+      nsIFrame* aFrame, StyleAppearance aAppearance) override;
+
+  virtual bool WidgetAppearanceDependsOnWindowFocus(
+      StyleAppearance aAppearance) override;
+
+  nsNativeThemeGTK();
+
+ protected:
+  virtual ~nsNativeThemeGTK();
+
+ private:
+  GtkTextDirection GetTextDirection(nsIFrame* aFrame);
+  gint GetTabMarginPixels(nsIFrame* aFrame);
+  bool GetGtkWidgetAndState(StyleAppearance aAppearance, nsIFrame* aFrame,
+                            WidgetNodeType& aGtkWidgetType,
+                            GtkWidgetState* aState, gint* aWidgetFlags);
+  bool GetExtraSizeForWidget(nsIFrame* aFrame, StyleAppearance aAppearance,
+                             nsIntMargin* aExtra);
+  bool IsWidgetVisible(StyleAppearance aAppearance);
+
+  void RefreshWidgetWindow(nsIFrame* aFrame);
+  WidgetNodeType NativeThemeToGtkTheme(StyleAppearance aAppearance,
+                                       nsIFrame* aFrame);
+
+  uint8_t mDisabledWidgetTypes
+      [(static_cast<size_t>(mozilla::StyleAppearance::Count) + 7) / 8];
+  uint8_t
+      mSafeWidgetStates[static_cast<size_t>(mozilla::StyleAppearance::Count) *
+                        4];  // 32 bits per widget
+  static const char* sDisabledEngines[];
+
+  // Because moz_gtk_get_widget_border can be slow, we cache its results
+  // by widget type.  Each bit in mBorderCacheValid says whether the
+  // corresponding entry in mBorderCache is valid.
+  void GetCachedWidgetBorder(nsIFrame* aFrame, StyleAppearance aAppearance,
+                             GtkTextDirection aDirection,
+                             LayoutDeviceIntMargin* aResult);
+  uint8_t mBorderCacheValid[(MOZ_GTK_WIDGET_NODE_COUNT + 7) / 8];
+  LayoutDeviceIntMargin mBorderCache[MOZ_GTK_WIDGET_NODE_COUNT];
+};
+
+#endif