1 files changed, 34 insertions, 0 deletions
diff --git a/widget/gtk/GUniquePtr.h b/widget/gtk/GUniquePtr.h
new file mode 100644
index 0000000000..0cd5de7b60
--- /dev/null
+++ b/widget/gtk/GUniquePtr.h
@@ -0,0 +1,34 @@
+/* -*- 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 GUniquePtr_h_
+#define GUniquePtr_h_
+
+// Provides GUniquePtr to g_free a given pointer.
+
+#include <glib.h>
+#include <gtk/gtk.h>
+#include "mozilla/UniquePtr.h"
+
+namespace mozilla {
+
+struct GFreeDeleter {
+  constexpr GFreeDeleter() = default;
+  void operator()(GdkEventCrossing* aPtr) const {
+    gdk_event_free((GdkEvent*)aPtr);
+  }
+  void operator()(GdkEventKey* aPtr) const { gdk_event_free((GdkEvent*)aPtr); }
+  void operator()(GdkEvent* aPtr) const { gdk_event_free(aPtr); }
+  void operator()(GError* aPtr) const { g_error_free(aPtr); }
+  void operator()(void* aPtr) const { g_free(aPtr); }
+  void operator()(GtkPaperSize* aPtr) const { gtk_paper_size_free(aPtr); }
+};
+
+template <typename T>
+using GUniquePtr = UniquePtr<T, GFreeDeleter>;
+
+}  // namespace mozilla
+
+#endif