[file-roller] src/gtk-utils.c: Mark the accelerator activation has handled

[Iain Lane <iainl src gnome org>]

commit d94a7afd925c0c30e4934c8612ff63b319ea5ab1
Author: Andrea Azzarone <andrea azzarone canonical com>
Date:   Fri Apr 19 12:57:07 2019 +0100

    src/gtk-utils.c: Mark the accelerator activation has handled
    
    The closure executed upon accelerator activation should return GDK_EVENT_STOP
    (TRUE) if the event has been handled and GDK_EVENT_PROPAGATE otherwise. This
    prevents CTRL+F to be activated twice for a single key press.
    
    Closes: https://gitlab.gnome.org/GNOME/file-roller/issues/37

 src/gtk-utils.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/src/gtk-utils.c b/src/gtk-utils.c
index 0a4cebe0..ebf95bc4 100644
--- a/src/gtk-utils.c
+++ b/src/gtk-utils.c
@@ -737,7 +737,7 @@ accel_data_free (gpointer  user_data,
 }
 
 
-static void
+static gboolean
 window_accelerator_activated_cb (GtkAccelGroup *accel_group,
                                 GObject                *object,
                                 guint           key,
@@ -748,8 +748,12 @@ window_accelerator_activated_cb (GtkAccelGroup     *accel_group,
        GAction   *action;
 
        action = g_action_map_lookup_action (G_ACTION_MAP (accel_data->window), accel_data->action_name);
-       if (action != NULL)
+       if (action != NULL) {
                g_action_activate (action, accel_data->target);
+               return GDK_EVENT_STOP;
+       }
+
+       return GDK_EVENT_PROPAGATE;
 }