sway: add system menu

config/sway/config

@@ -142,7 +142,7 @@ hide_edge_borders both
     bindsym $mod+7 workspace 7
     bindsym $mod+8 workspace 8
     bindsym $mod+9 workspace 9
-    bindsym $mod+0 workspace 10
+    #bindsym $mod+0 workspace 10
     # Move focused container to workspace
     bindsym $mod+Shift+1 move container to workspace 1
     bindsym $mod+Shift+2 move container to workspace 2
@@ -218,6 +218,21 @@ mode "resize" {
 }
 bindsym $mod+r mode "resize"
 
+set $system_mode "(r)eload e(x)it (s)hutdown re(b)oot (w)aybar" 
+mode $system_mode {
+    bindsym $mod+r reload; mode "default"
+    bindsym $mod+x exec swaymsg exit
+    bindsym $mod+s exec systemctl poweroff
+    bindsym $mod+b exec systemctl reboot
+    bindsym $mod+w exec killall waybar; exec waybar; mode "default"
+
+    # Return to default mode
+    bindsym Return mode "default"
+    bindsym Escape mode "default"    
+}
+bindsym $mod+0 mode $system_mode
+
+
 # class                 border  backgr. text    indicator child_border
 client.focused          #000000 #ffffff #000000 #000000   #000000
 client.focused_inactive #000000 #eeeeee #000000 #000000   #000000
@@ -261,6 +276,7 @@ exec dbus-update-activation-environment --systemd DISPLAY WAYLAND_DISPLAY SWAYSO
 seat seat0 xcursor_theme Adwaita 24
 
 # waybar
+exec "killall waybar"
 exec waybar
 
 # start a terminal