diff -r 000000000000 -r 6474c204b198 widget/gtk/nsColorPicker.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widget/gtk/nsColorPicker.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,53 @@
+/* -*- 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 nsColorPicker_h__
+#define nsColorPicker_h__
+
+#include <gtk/gtk.h>
+
+#include "nsCOMPtr.h"
+#include "nsIColorPicker.h"
+#include "nsString.h"
+
+class nsIWidget;
+
+class nsColorPicker MOZ_FINAL : public nsIColorPicker
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSICOLORPICKER
+
+  nsColorPicker() {};
+
+private:
+  ~nsColorPicker() {};
+
+  static void OnColorChanged(GtkColorSelection* colorselection,
+                             gpointer user_data);
+  static void OnResponse(GtkWidget* dialog, gint response_id,
+                         gpointer user_data);
+  static void OnDestroy(GtkWidget* dialog, gpointer user_data);
+
+  // Conversion functions for color
+  static int convertGdkColorComponent(guint16 color_component);
+  static guint16 convertToGdkColorComponent(int color_component);
+  static GdkColor convertToGdkColor(nscolor color);
+  static nsString ToHexString(int n);
+
+  static GtkColorSelection* WidgetGetColorSelection(GtkWidget* widget);
+
+  void Done(GtkWidget* dialog, gint response_id);
+  void Update(GtkColorSelection* colorselection);
+  void ReadValueFromColorSelection(GtkColorSelection* colorselection);
+
+  nsCOMPtr<nsIWidget> mParentWidget;
+  nsCOMPtr<nsIColorPickerShownCallback> mCallback;
+  nsString mTitle;
+  nsString mColor;
+  nsString mInitialColor;
+};
+
+#endif // nsColorPicker_h__