1 files changed, 36 insertions, 0 deletions
diff --git a/widget/gtk/WindowSurfaceX11SHM.h b/widget/gtk/WindowSurfaceX11SHM.h
new file mode 100644
index 0000000000..5d12137f7b
--- /dev/null
+++ b/widget/gtk/WindowSurfaceX11SHM.h
@@ -0,0 +1,36 @@
+/* -*- Mode: C++; tab-width: 4; 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_WINDOW_SURFACE_X11_SHM_H
+#define _MOZILLA_WIDGET_WINDOW_SURFACE_X11_SHM_H
+
+#ifdef MOZ_X11
+
+#  include "mozilla/widget/WindowSurface.h"
+#  include "nsShmImage.h"
+
+namespace mozilla {
+namespace widget {
+
+class WindowSurfaceX11SHM : public WindowSurface {
+ public:
+  WindowSurfaceX11SHM(Display* aDisplay, Drawable aWindow, Visual* aVisual,
+                      unsigned int aDepth);
+
+  already_AddRefed<gfx::DrawTarget> Lock(
+      const LayoutDeviceIntRegion& aRegion) override;
+  void Commit(const LayoutDeviceIntRegion& aInvalidRegion) override;
+
+ private:
+  RefPtr<nsShmImage> mFrontImage;
+  RefPtr<nsShmImage> mBackImage;
+};
+
+}  // namespace widget
+}  // namespace mozilla
+
+#endif  // MOZ_X11
+#endif  // _MOZILLA_WIDGET_WINDOW_SURFACE_X11_SHM_H