[gnome-music/wip/mschraal/window-back-button-cleanup: 6/6] window: Do not call private HeaderBar function

[Marinus Schraal <mschraal src gnome org>]

commit 4fd31e3c8510d37f9ce4acf75335c8616d69f5aa
Author: Marinus Schraal <mschraal gnome org>
Date:   Sun Mar 31 12:48:54 2019 +0200

    window: Do not call private HeaderBar function
    
    Pressing back button called a private function of HeaderBar
    Emit the 'back-button-clicked' signal on the HeaderBar object instead for
    the same result.

 gnomemusic/window.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gnomemusic/window.py b/gnomemusic/window.py
index e90e5d33..a0087078 100644
--- a/gnomemusic/window.py
+++ b/gnomemusic/window.py
@@ -398,7 +398,7 @@ class Window(Gtk.ApplicationWindow):
 
     @log
     def _on_back_button_pressed(self, gesture, n_press, x, y):
-        self._headerbar._on_back_button_clicked()
+        self._headerbar.emit('back-button-clicked')
 
     @log
     def _notify_mode_disconnect(self, data=None):