From bc2f125f1cc2bed03c04b1787b17dad947b62fbc Mon Sep 17 00:00:00 2001
From: Tom Schoonjans <Tom.Schoonjans@diamond.ac.uk>
Date: Mon, 31 Jul 2017 21:26:47 +0100
Subject: [PATCH] GtkFileChooserNativeQuartz: improve support for file filters

Instead of using conditional compilation, use respondsToSelector to
check at runtime for setAccessoryViewDisclosed.

https://bugzilla.gnome.org/show_bug.cgi?id=785306
---
 gtk/gtkfilechoosernativequartz.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/gtk/gtkfilechoosernativequartz.c b/gtk/gtkfilechoosernativequartz.c
index d573248210..f210c1db94 100644
--- a/gtk/gtkfilechoosernativequartz.c
+++ b/gtk/gtkfilechoosernativequartz.c
@@ -208,6 +208,10 @@ filechooser_quartz_data_free (FileChooserQuartzData *data)
   g_free (data);
 }
 
+@protocol CanSetAccessoryViewDisclosed
+- (void)setAccessoryViewDisclosed:(BOOL)val;
+@end
+
 static gboolean
 filechooser_quartz_launch (FileChooserQuartzData *data)
 {
@@ -325,14 +329,11 @@ filechooser_quartz_launch (FileChooserQuartzData *data)
         }
       [data->filter_combo_box setToolTip:[NSString stringWithUTF8String:_("Select which types of files are shown")]];
       [data->panel setAccessoryView:data->filter_combo_box];
-#ifdef AVAILABLE_MAC_OS_X_VERSION_10_11_AND_LATER
-      if (!data->save)
+      if ([data->panel isKindOfClass:[NSOpenPanel class]] && [data->panel respondsToSelector:@selector(setAccessoryViewDisclosed:)])
         {
-          [(NSOpenPanel *) data->panel setAccessoryViewDisclosed:YES];
+          [(id<CanSetAccessoryViewDisclosed>) data->panel setAccessoryViewDisclosed:YES];
         }
-#endif
     }
-
   data->response = GTK_RESPONSE_CANCEL;