[gtk/gtk-3-24: 1/2] filechoosernative: Make get_filter work for (non-portal) native chooser

[Matthias Clasen <matthiasc src gnome org>]

commit baddc90c26f65a0867aa6b4073e1a6b689d87136
Author: Michael Weghorn <m weghorn posteo de>
Date:   Sat May 23 13:38:54 2020 +0200

    filechoosernative: Make get_filter work for (non-portal) native chooser
    
    'gtk_file_chooser_get_filter' did not work for GtkFileChooserNative,
    since the previous way did not properly handle the delegate dialog,
    s.a. commit a136cbae8f8848d49976512f7f0ec73137428ea0
    ("filechoosernative: forward current_filter to delegate dialog",
    2018-11-29) for details, wich basiscally fixed the same thing for
    the 'gtk_file_chooser_set_filter' case.
    
    This fixes #1820 for the fallback dialog. A solution for the portal
    one (which also requires changes to xdg-desktop-portal and
    xdg-desktop-portal-gtk as well) will be suggested in a subsequent step.
    
    Bug: #1820

 gtk/gtkfilechoosernative.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/gtk/gtkfilechoosernative.c b/gtk/gtkfilechoosernative.c
index 4e20f21d55..76f7cb6da8 100644
--- a/gtk/gtkfilechoosernative.c
+++ b/gtk/gtkfilechoosernative.c
@@ -498,6 +498,7 @@ gtk_file_chooser_native_get_property (GObject    *object,
       break;
 
     case GTK_FILE_CHOOSER_PROP_FILTER:
+      self->current_filter = gtk_file_chooser_get_filter (GTK_FILE_CHOOSER (self->dialog));
       g_value_set_object (value, self->current_filter);
       break;