[gtk/wip/hadess/portal-fixes: 5/5] filechoosernativeportal: Fall back if portal is too old

[Bastien Nocera <hadess src gnome org>]

commit 8cf41c1b6651dac252e193534bc4b4f31586ecca
Author: Bastien Nocera <hadess hadess net>
Date:   Mon Mar 30 14:18:11 2020 +0200

    filechoosernativeportal: Fall back if portal is too old
    
    Add portal version checking as originally implemented for the GTK 3.x
    branch.
    
    See: 35fec1c6b298e0e294530e1ffc8615b5bd261531

 gtk/gtkfilechoosernativeportal.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkfilechoosernativeportal.c b/gtk/gtkfilechoosernativeportal.c
index 2e3c49a887..8d58dc253d 100644
--- a/gtk/gtkfilechoosernativeportal.c
+++ b/gtk/gtkfilechoosernativeportal.c
@@ -423,11 +423,19 @@ gtk_file_chooser_native_portal_show (GtkFileChooserNative *self,
 
   action = gtk_file_chooser_get_action (GTK_FILE_CHOOSER (self));
 
-  if (action == GTK_FILE_CHOOSER_ACTION_OPEN ||
-      action == GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER)
+  if (action == GTK_FILE_CHOOSER_ACTION_OPEN)
     method_name = "OpenFile";
   else if (action == GTK_FILE_CHOOSER_ACTION_SAVE)
     method_name = "SaveFile";
+  else if (action == GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER)
+    {
+      if (gtk_get_portal_interface_version (connection, "org.freedesktop.portal.FileChooser") < 3)
+        {
+          g_warning ("GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER is not supported by GtkFileChooserNativePortal 
because portal is too old");
+          return FALSE;
+        }
+      method_name = "OpenFile";
+    }
   else
     {
       g_warning ("GTK_FILE_CHOOSER_ACTION_CREATE_FOLDER is not supported by GtkFileChooserNativePortal");