[gnome-games] retro-runner: Use input capabilities to set input mode

[Alexander Mikhaylenko <alexm src gnome org>]

commit 896aa494e642dc218ec001301a5698ec27c624a9
Author: Yetizone <andreii lisita gmail com>
Date:   Thu Nov 15 09:56:17 2018 +0200

    retro-runner: Use input capabilities to set input mode

 src/retro/retro-runner.vala | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
---
diff --git a/src/retro/retro-runner.vala b/src/retro/retro-runner.vala
index 6cf30bd4..7c985d10 100644
--- a/src/retro/retro-runner.vala
+++ b/src/retro/retro-runner.vala
@@ -319,7 +319,13 @@ public class Games.RetroRunner : Object, Runner {
        }
 
        public InputMode[] get_available_input_modes () {
-               return { InputMode.GAMEPAD, InputMode.KEYBOARD };
+               if (input_capabilities == null)
+                       return { InputMode.GAMEPAD };
+
+               if (input_capabilities.get_allow_keyboard_mode ())
+                       return { InputMode.GAMEPAD, InputMode.KEYBOARD };
+               else
+                       return { InputMode.GAMEPAD };
        }
 
        private void on_media_number_changed () {