8 files changed, 500 insertions, 0 deletions
diff --git a/widget/gtk/compat/gdk/gdkdnd.h b/widget/gtk/compat/gdk/gdkdnd.h
new file mode 100644
index 0000000000..bf9888d84f
--- /dev/null
+++ b/widget/gtk/compat/gdk/gdkdnd.h
@@ -0,0 +1,29 @@
+/* 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 GDKDND_WRAPPER_H
+#define GDKDND_WRAPPER_H
+
+#define gdk_drag_context_get_actions gdk_drag_context_get_actions_
+#define gdk_drag_context_list_targets gdk_drag_context_list_targets_
+#define gdk_drag_context_get_dest_window gdk_drag_context_get_dest_window_
+#include_next <gdk/gdkdnd.h>
+#undef gdk_drag_context_get_actions
+#undef gdk_drag_context_list_targets
+#undef gdk_drag_context_get_dest_window
+
+static inline GdkDragAction gdk_drag_context_get_actions(
+    GdkDragContext* context) {
+  return context->actions;
+}
+
+static inline GList* gdk_drag_context_list_targets(GdkDragContext* context) {
+  return context->targets;
+}
+
+static inline GdkWindow* gdk_drag_context_get_dest_window(
+    GdkDragContext* context) {
+  return context->dest_window;
+}
+#endif /* GDKDND_WRAPPER_H */
diff --git a/widget/gtk/compat/gdk/gdkkeysyms.h b/widget/gtk/compat/gdk/gdkkeysyms.h
new file mode 100644
index 0000000000..2f48d61fcc
--- /dev/null
+++ b/widget/gtk/compat/gdk/gdkkeysyms.h
@@ -0,0 +1,266 @@
+/* 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 GDKKEYSYMS_WRAPPER_H
+#define GDKKEYSYMS_WRAPPER_H
+
+#include_next <gdk/gdkkeysyms.h>
+
+#ifndef GDK_ISO_Level5_Shift
+#  define GDK_ISO_Level5_Shift 0xFE11
+#endif
+
+#ifndef GDK_ISO_Level5_Latch
+#  define GDK_ISO_Level5_Latch 0xFE12
+#endif
+
+#ifndef GDK_ISO_Level5_Lock
+#  define GDK_ISO_Level5_Lock 0xFE13
+#endif
+
+#ifndef GDK_dead_greek
+#  define GDK_dead_greek 0xFE8C
+#endif
+
+#ifndef GDK_ch
+#  define GDK_ch 0xFEA0
+#endif
+
+#ifndef GDK_Ch
+#  define GDK_Ch 0xFEA1
+#endif
+
+#ifndef GDK_CH
+#  define GDK_CH 0xFEA2
+#endif
+
+#ifndef GDK_c_h
+#  define GDK_c_h 0xFEA3
+#endif
+
+#ifndef GDK_C_h
+#  define GDK_C_h 0xFEA4
+#endif
+
+#ifndef GDK_C_H
+#  define GDK_C_H 0xFEA5
+#endif
+
+#ifndef GDK_MonBrightnessUp
+#  define GDK_MonBrightnessUp 0x1008FF02
+#endif
+
+#ifndef GDK_MonBrightnessDown
+#  define GDK_MonBrightnessDown 0x1008FF03
+#endif
+
+#ifndef GDK_AudioLowerVolume
+#  define GDK_AudioLowerVolume 0x1008FF11
+#endif
+
+#ifndef GDK_AudioMute
+#  define GDK_AudioMute 0x1008FF12
+#endif
+
+#ifndef GDK_AudioRaiseVolume
+#  define GDK_AudioRaiseVolume 0x1008FF13
+#endif
+
+#ifndef GDK_AudioPlay
+#  define GDK_AudioPlay 0x1008FF14
+#endif
+
+#ifndef GDK_AudioStop
+#  define GDK_AudioStop 0x1008FF15
+#endif
+
+#ifndef GDK_AudioPrev
+#  define GDK_AudioPrev 0x1008FF16
+#endif
+
+#ifndef GDK_AudioNext
+#  define GDK_AudioNext 0x1008FF17
+#endif
+
+#ifndef GDK_HomePage
+#  define GDK_HomePage 0x1008FF18
+#endif
+
+#ifndef GDK_Mail
+#  define GDK_Mail 0x1008FF19
+#endif
+
+#ifndef GDK_Search
+#  define GDK_Search 0x1008FF1B
+#endif
+
+#ifndef GDK_AudioRecord
+#  define GDK_AudioRecord 0x1008FF1C
+#endif
+
+#ifndef GDK_Back
+#  define GDK_Back 0x1008FF26
+#endif
+
+#ifndef GDK_Forward
+#  define GDK_Forward 0x1008FF27
+#endif
+
+#ifndef GDK_Stop
+#  define GDK_Stop 0x1008FF28
+#endif
+
+#ifndef GDK_Refresh
+#  define GDK_Refresh 0x1008FF29
+#endif
+
+#ifndef GDK_PowerOff
+#  define GDK_PowerOff 0x1008FF2A
+#endif
+
+#ifndef GDK_Eject
+#  define GDK_Eject 0x1008FF2C
+#endif
+
+#ifndef GDK_AudioPause
+#  define GDK_AudioPause 0x1008FF31
+#endif
+
+#ifndef GDK_BrightnessAdjust
+#  define GDK_BrightnessAdjust 0x1008FF3B
+#endif
+
+#ifndef GDK_AudioRewind
+#  define GDK_AudioRewind 0x1008FF3E
+#endif
+
+#ifndef GDK_Launch0
+#  define GDK_Launch0 0x1008FF40
+#endif
+
+#ifndef GDK_Launch1
+#  define GDK_Launch1 0x1008FF41
+#endif
+
+#ifndef GDK_Launch2
+#  define GDK_Launch2 0x1008FF42
+#endif
+
+#ifndef GDK_Launch3
+#  define GDK_Launch3 0x1008FF43
+#endif
+
+#ifndef GDK_Launch4
+#  define GDK_Launch4 0x1008FF44
+#endif
+
+#ifndef GDK_Launch5
+#  define GDK_Launch5 0x1008FF45
+#endif
+
+#ifndef GDK_Launch6
+#  define GDK_Launch6 0x1008FF46
+#endif
+
+#ifndef GDK_Launch7
+#  define GDK_Launch7 0x1008FF47
+#endif
+
+#ifndef GDK_Launch8
+#  define GDK_Launch8 0x1008FF48
+#endif
+
+#ifndef GDK_Launch9
+#  define GDK_Launch9 0x1008FF49
+#endif
+
+#ifndef GDK_LaunchA
+#  define GDK_LaunchA 0x1008FF4A
+#endif
+
+#ifndef GDK_LaunchB
+#  define GDK_LaunchB 0x1008FF4B
+#endif
+
+#ifndef GDK_LaunchC
+#  define GDK_LaunchC 0x1008FF4C
+#endif
+
+#ifndef GDK_LaunchD
+#  define GDK_LaunchD 0x1008FF4D
+#endif
+
+#ifndef GDK_LaunchE
+#  define GDK_LaunchE 0x1008FF4E
+#endif
+
+#ifndef GDK_LaunchF
+#  define GDK_LaunchF 0x1008FF4F
+#endif
+
+#ifndef GDK_Copy
+#  define GDK_Copy 0x1008FF57
+#endif
+
+#ifndef GDK_Cut
+#  define GDK_Cut 0x1008FF58
+#endif
+
+#ifndef GDK_Paste
+#  define GDK_Paste 0x1008FF6D
+#endif
+
+#ifndef GDK_Reload
+#  define GDK_Reload 0x1008FF73
+#endif
+
+#ifndef GDK_AudioRandomPlay
+#  define GDK_AudioRandomPlay 0x1008FF99
+#endif
+
+#ifndef GDK_Subtitle
+#  define GDK_Subtitle 0x1008FF9A
+#endif
+
+#ifndef GDK_Red
+#  define GDK_Red 0x1008FFA3
+#endif
+
+#ifndef GDK_Green
+#  define GDK_Green 0x1008FFA4
+#endif
+
+#ifndef GDK_Yellow
+#  define GDK_Yellow 0x1008FFA5
+#endif
+
+#ifndef GDK_Blue
+#  define GDK_Blue 0x1008FFA6
+#endif
+
+#ifndef GDK_TouchpadToggle
+#  define GDK_TouchpadToggle 0x1008FFA9
+#endif
+
+#ifndef GDK_TouchpadOn
+#  define GDK_TouchpadOn 0x1008FFB0
+#endif
+
+#ifndef GDK_TouchpadOff
+#  define GDK_TouchpadOff 0x1008ffb1
+#endif
+
+#ifndef GDK_LogWindowTree
+#  define GDK_LogWindowTree 0x1008FE24
+#endif
+
+#ifndef GDK_LogGrabInfo
+#  define GDK_LogGrabInfo 0x1008FE25
+#endif
+
+#ifndef GDK_Sleep
+#  define GDK_Sleep 0x1008FF2F
+#endif
+
+#endif /* GDKKEYSYMS_WRAPPER_H */
diff --git a/widget/gtk/compat/gdk/gdkvisual.h b/widget/gtk/compat/gdk/gdkvisual.h
new file mode 100644
index 0000000000..e5187a78da
--- /dev/null
+++ b/widget/gtk/compat/gdk/gdkvisual.h
@@ -0,0 +1,15 @@
+/* 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 GDKVISUAL_WRAPPER_H
+#define GDKVISUAL_WRAPPER_H
+
+#define gdk_visual_get_depth gdk_visual_get_depth_
+#include_next <gdk/gdkvisual.h>
+#undef gdk_visual_get_depth
+
+static inline gint gdk_visual_get_depth(GdkVisual* visual) {
+  return visual->depth;
+}
+#endif /* GDKVISUAL_WRAPPER_H */
diff --git a/widget/gtk/compat/gdk/gdkwindow.h b/widget/gtk/compat/gdk/gdkwindow.h
new file mode 100644
index 0000000000..a4d2efbc89
--- /dev/null
+++ b/widget/gtk/compat/gdk/gdkwindow.h
@@ -0,0 +1,27 @@
+/* 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 GDKWINDOW_WRAPPER_H
+#define GDKWINDOW_WRAPPER_H
+
+#define gdk_window_get_display gdk_window_get_display_
+#define gdk_window_get_screen gdk_window_get_screen_
+#include_next <gdk/gdkwindow.h>
+#undef gdk_window_get_display
+#undef gdk_window_get_screen
+
+static inline GdkDisplay* gdk_window_get_display(GdkWindow* window) {
+  return gdk_drawable_get_display(GDK_DRAWABLE(window));
+}
+
+static inline GdkScreen* gdk_window_get_screen(GdkWindow* window) {
+  return gdk_drawable_get_screen(window);
+}
+
+#if GDK_PIXBUF_MAJOR == 2 && GDK_PIXBUF_MINOR < 18
+static inline gboolean gdk_window_is_destroyed(GdkWindow* window) {
+  return GDK_WINDOW_OBJECT(window)->destroyed;
+}
+#endif
+#endif /* GDKWINDOW_WRAPPER_H */
diff --git a/widget/gtk/compat/gdk/gdkx.h b/widget/gtk/compat/gdk/gdkx.h
new file mode 100644
index 0000000000..3d13c88b4d
--- /dev/null
+++ b/widget/gtk/compat/gdk/gdkx.h
@@ -0,0 +1,46 @@
+/* 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 GDKX_WRAPPER_H
+#define GDKX_WRAPPER_H
+
+#include <gtk/gtkversion.h>
+
+#define gdk_x11_window_foreign_new_for_display \
+  gdk_x11_window_foreign_new_for_display_
+#define gdk_x11_window_lookup_for_display gdk_x11_window_lookup_for_display_
+#define gdk_x11_window_get_xid gdk_x11_window_get_xid_
+#if !GTK_CHECK_VERSION(2, 24, 0)
+#  define gdk_x11_set_sm_client_id gdk_x11_set_sm_client_id_
+#endif
+#include_next <gdk/gdkx.h>
+#undef gdk_x11_window_foreign_new_for_display
+#undef gdk_x11_window_lookup_for_display
+#undef gdk_x11_window_get_xid
+
+static inline GdkWindow* gdk_x11_window_foreign_new_for_display(
+    GdkDisplay* display, Window window) {
+  return gdk_window_foreign_new_for_display(display, window);
+}
+
+static inline GdkWindow* gdk_x11_window_lookup_for_display(GdkDisplay* display,
+                                                           Window window) {
+  return gdk_window_lookup_for_display(display, window);
+}
+
+static inline Window gdk_x11_window_get_xid(GdkWindow* window) {
+  return (GDK_WINDOW_XWINDOW(window));
+}
+
+#ifndef GDK_IS_X11_DISPLAY
+#  define GDK_IS_X11_DISPLAY(a) (true)
+#endif
+
+#if !GTK_CHECK_VERSION(2, 24, 0)
+#  undef gdk_x11_set_sm_client_id
+static inline void gdk_x11_set_sm_client_id(const gchar* sm_client_id) {
+  gdk_set_sm_client_id(sm_client_id);
+}
+#endif
+#endif /* GDKX_WRAPPER_H */
diff --git a/widget/gtk/compat/glib/gmem.h b/widget/gtk/compat/glib/gmem.h
new file mode 100644
index 0000000000..78f24bbd8d
--- /dev/null
+++ b/widget/gtk/compat/glib/gmem.h
@@ -0,0 +1,48 @@
+/* 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 GMEM_WRAPPER_H
+#define GMEM_WRAPPER_H
+
+#define g_malloc_n g_malloc_n_
+#define g_malloc0_n g_malloc0_n_
+#define g_realloc_n g_realloc_n_
+#include_next <glib/gmem.h>
+#undef g_malloc_n
+#undef g_malloc0_n
+#undef g_realloc_n
+
+#include <glib/gmessages.h>
+
+#undef g_new
+#define g_new(type, num) ((type*)g_malloc_n((num), sizeof(type)))
+
+#undef g_new0
+#define g_new0(type, num) ((type*)g_malloc0_n((num), sizeof(type)))
+
+#undef g_renew
+#define g_renew(type, ptr, num) ((type*)g_realloc_n(ptr, (num), sizeof(type)))
+
+#define _CHECK_OVERFLOW(num, type_size)                                    \
+  if (G_UNLIKELY(type_size > 0 && num > G_MAXSIZE / type_size)) {          \
+    g_error("%s: overflow allocating %" G_GSIZE_FORMAT "*%" G_GSIZE_FORMAT \
+            " bytes",                                                      \
+            G_STRLOC, num, type_size);                                     \
+  }
+
+static inline gpointer g_malloc_n(gsize num, gsize type_size) {
+  _CHECK_OVERFLOW(num, type_size)
+  return g_malloc(num * type_size);
+}
+
+static inline gpointer g_malloc0_n(gsize num, gsize type_size) {
+  _CHECK_OVERFLOW(num, type_size)
+  return g_malloc0(num * type_size);
+}
+
+static inline gpointer g_realloc_n(gpointer ptr, gsize num, gsize type_size) {
+  _CHECK_OVERFLOW(num, type_size)
+  return g_realloc(ptr, num * type_size);
+}
+#endif /* GMEM_WRAPPER_H */
diff --git a/widget/gtk/compat/gtk/gtkwidget.h b/widget/gtk/compat/gtk/gtkwidget.h
new file mode 100644
index 0000000000..21165d61fa
--- /dev/null
+++ b/widget/gtk/compat/gtk/gtkwidget.h
@@ -0,0 +1,43 @@
+/* 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 GTKWIDGET_WRAPPER_H
+#define GTKWIDGET_WRAPPER_H
+
+#define gtk_widget_set_mapped gtk_widget_set_mapped_
+#define gtk_widget_get_mapped gtk_widget_get_mapped_
+#define gtk_widget_set_realized gtk_widget_set_realized_
+#define gtk_widget_get_realized gtk_widget_get_realized_
+#include_next <gtk/gtkwidget.h>
+#undef gtk_widget_set_mapped
+#undef gtk_widget_get_mapped
+#undef gtk_widget_set_realized
+#undef gtk_widget_get_realized
+
+#include <gtk/gtkversion.h>
+
+static inline void gtk_widget_set_mapped(GtkWidget* widget, gboolean mapped) {
+  if (mapped)
+    GTK_WIDGET_SET_FLAGS(widget, GTK_MAPPED);
+  else
+    GTK_WIDGET_UNSET_FLAGS(widget, GTK_MAPPED);
+}
+
+static inline gboolean gtk_widget_get_mapped(GtkWidget* widget) {
+  return GTK_WIDGET_MAPPED(widget);
+}
+
+static inline void gtk_widget_set_realized(GtkWidget* widget,
+                                           gboolean realized) {
+  if (realized)
+    GTK_WIDGET_SET_FLAGS(widget, GTK_REALIZED);
+  else
+    GTK_WIDGET_UNSET_FLAGS(widget, GTK_REALIZED);
+}
+
+static inline gboolean gtk_widget_get_realized(GtkWidget* widget) {
+  return GTK_WIDGET_REALIZED(widget);
+}
+
+#endif /* GTKWIDGET_WRAPPER_H */
diff --git a/widget/gtk/compat/gtk/gtkwindow.h b/widget/gtk/compat/gtk/gtkwindow.h
new file mode 100644
index 0000000000..7c3d5873bd
--- /dev/null
+++ b/widget/gtk/compat/gtk/gtkwindow.h
@@ -0,0 +1,26 @@
+/* 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 GTKWINDOW_WRAPPER_H
+#define GTKWINDOW_WRAPPER_H
+
+#define gtk_window_group_get_current_grab gtk_window_group_get_current_grab_
+#define gtk_window_get_window_type gtk_window_get_window_type_
+#include_next <gtk/gtkwindow.h>
+#undef gtk_window_group_get_current_grab
+#undef gtk_window_get_window_type
+
+static inline GtkWidget* gtk_window_group_get_current_grab(
+    GtkWindowGroup* window_group) {
+  if (!window_group->grabs) return NULL;
+
+  return GTK_WIDGET(window_group->grabs->data);
+}
+
+static inline GtkWindowType gtk_window_get_window_type(GtkWindow* window) {
+  gint type;
+  g_object_get(window, "type", &type, (void*)NULL);
+  return (GtkWindowType)type;
+}
+#endif /* GTKWINDOW_WRAPPER_H */