[gnome-music/wip/jfelder/application-quit] window: Move quit shortcut to the application

[Jean Felder <jfelder src gnome org>]

commit febc65fbf2cd7bd1171821cd3ac69db2a8f30542
Author: Jean Felder <jfelder src gnome org>
Date:   Mon Nov 11 15:25:14 2019 +0100

    window: Move quit shortcut to the application
    
    In the Window, the keyboard shortcuts are enabled once the player view
    is enabled. This seems like the best course of action because most of
    the shortcuts are not relevant with an empty view. However, this also
    means that GNOME Music cannot be left when the EmptyView is loaded.
    
    Fix the issue by moving the quit shortcut to the Application.

 gnomemusic/application.py | 7 ++++++-
 gnomemusic/window.py      | 2 --
 2 files changed, 6 insertions(+), 3 deletions(-)
---
diff --git a/gnomemusic/application.py b/gnomemusic/application.py
index 40d58cf7..9415fe1d 100644
--- a/gnomemusic/application.py
+++ b/gnomemusic/application.py
@@ -158,10 +158,15 @@ class Application(Gtk.Application):
     def do_startup(self):
         Gtk.Application.do_startup(self)
 
+        quit_action = Gio.SimpleAction.new("quit", None)
+        quit_action.connect("activate", self._quit)
+        self.add_action(quit_action)
+        self.set_accels_for_action("app.quit", ["<Ctrl>Q"])
+
         self._build_app_menu()
 
     @log
-    def quit(self, action=None, param=None):
+    def _quit(self, action=None, param=None):
         self._window.destroy()
 
     def do_activate(self):
diff --git a/gnomemusic/window.py b/gnomemusic/window.py
index 49681a54..a7750a65 100644
--- a/gnomemusic/window.py
+++ b/gnomemusic/window.py
@@ -351,8 +351,6 @@ class Window(Gtk.ApplicationWindow):
             # Play next on Ctrl + N
             if keyval == Gdk.KEY_n:
                 self._player.next()
-            if keyval == Gdk.KEY_q:
-                self.props.application.quit()
             # Toggle repeat on Ctrl + R
             if keyval == Gdk.KEY_r:
                 if self._player.props.repeat_mode == RepeatMode.SONG: