[glade/csd] Depend on GTK+ 3.15

[Tristan Van Berkom <tvb src gnome org>]

commit e4775b6f7a00b18bd930ac9a99e29b3d9079b857
Author: Tristan Van Berkom <tristan upstairslabs com>
Date:   Thu Oct 23 17:19:34 2014 +0900

    Depend on GTK+ 3.15
    
    Avoid GTK_CHECK_VERSION ifdefs working around the absense of
    gtk_window_get_titlebar().

 configure.ac                       |    2 +-
 plugins/gtk+/glade-gtk-window.c    |   17 -----------------
 plugins/gtk+/glade-window-editor.c |   18 ------------------
 3 files changed, 1 insertions(+), 36 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 9792a54..514a936 100644
--- a/configure.ac
+++ b/configure.ac
@@ -145,7 +145,7 @@ GOBJECT_INTROSPECTION_CHECK([1.32.0])
 dnl ================================================================
 dnl Check for gtk+
 dnl ================================================================
-GTK_REQUIRED=3.12.0
+GTK_REQUIRED=3.15.0
 PKG_CHECK_MODULES([GTK],[
   gtk+-3.0 >= $GTK_REQUIRED
   gmodule-2.0
diff --git a/plugins/gtk+/glade-gtk-window.c b/plugins/gtk+/glade-gtk-window.c
index 2d7fde4..7f221f3 100644
--- a/plugins/gtk+/glade-gtk-window.c
+++ b/plugins/gtk+/glade-gtk-window.c
@@ -38,23 +38,6 @@
 
 #define CSD_DISABLED_MESSAGE _("This property does not apply to client-side decorated windows")
 
-#if !GTK_CHECK_VERSION (3,15,0)
-static void check_titlebar (GtkWidget *widget, gpointer data)
-{
-  GtkWidget **titlebar = data;
-  if (gtk_style_context_has_class (gtk_widget_get_style_context (widget), "titlebar"))
-    *titlebar = widget;
-}
-
-static GtkWidget *
-gtk_window_get_titlebar (GtkWindow *window)
-{
-  GtkWidget *titlebar = NULL;
-  gtk_container_forall (GTK_CONTAINER (window), check_titlebar, &titlebar);
-  return titlebar;
-}
-#endif
-
 static void
 glade_gtk_window_parse_finished (GladeProject * project, GObject * object)
 {
diff --git a/plugins/gtk+/glade-window-editor.c b/plugins/gtk+/glade-window-editor.c
index fe4d815..0ea7c79 100644
--- a/plugins/gtk+/glade-window-editor.c
+++ b/plugins/gtk+/glade-window-editor.c
@@ -194,24 +194,6 @@ icon_file_toggled (GtkWidget         *widget,
   glade_editable_load (GLADE_EDITABLE (window_editor), gwidget);
 }
 
-#if !GTK_CHECK_VERSION (3,15,0)
-/* Hack to find the titlebar */
-static void check_titlebar (GtkWidget *widget, gpointer data)
-{
-  GtkWidget **titlebar = data;
-  if (gtk_style_context_has_class (gtk_widget_get_style_context (widget), "titlebar"))
-    *titlebar = widget;
-}
-
-static GtkWidget *
-gtk_window_get_titlebar (GtkWindow *window)
-{
-  GtkWidget *titlebar = NULL;
-  gtk_container_forall (GTK_CONTAINER (window), check_titlebar, &titlebar);
-  return titlebar;
-}
-#endif
-
 static void
 use_csd_toggled (GtkWidget         *widget,
                 GladeWindowEditor *window_editor)