[gnome-games] runner: Add get_available_input_modes() method

[Alexander Mikhaylenko <alexm src gnome org>]

commit c403879d97ac3a9b98414ff6b3d2c572370fc380
Author: Yetizone <andreii lisita gmail com>
Date:   Sun Nov 18 20:32:36 2018 +0200

    runner: Add get_available_input_modes() method

 src/command/command-runner.vala | 4 ++++
 src/core/runner.vala            | 1 +
 src/dummy/dummy-runner.vala     | 4 ++++
 src/retro/retro-runner.vala     | 4 ++++
 4 files changed, 13 insertions(+)
---
diff --git a/src/command/command-runner.vala b/src/command/command-runner.vala
index a78c3b15..43257f61 100644
--- a/src/command/command-runner.vala
+++ b/src/command/command-runner.vala
@@ -77,4 +77,8 @@ public class Games.CommandRunner : Object, Runner {
 
        public void stop () {
        }
+
+       public InputMode[] get_available_input_modes () {
+               return { };
+       }
 }
diff --git a/src/core/runner.vala b/src/core/runner.vala
index ad902629..48815af9 100644
--- a/src/core/runner.vala
+++ b/src/core/runner.vala
@@ -15,4 +15,5 @@ public interface Games.Runner : Object {
        public abstract void resume () throws Error;
        public abstract void pause ();
        public abstract void stop ();
+       public abstract InputMode[] get_available_input_modes ();
 }
diff --git a/src/dummy/dummy-runner.vala b/src/dummy/dummy-runner.vala
index bd32a687..935429f8 100644
--- a/src/dummy/dummy-runner.vala
+++ b/src/dummy/dummy-runner.vala
@@ -43,4 +43,8 @@ private class Games.DummyRunner : Object, Runner {
 
        public void stop () {
        }
+
+       public InputMode[] get_available_input_modes () {
+               return { };
+       }
 }
diff --git a/src/retro/retro-runner.vala b/src/retro/retro-runner.vala
index 88435b75..642762be 100644
--- a/src/retro/retro-runner.vala
+++ b/src/retro/retro-runner.vala
@@ -318,6 +318,10 @@ public class Games.RetroRunner : Object, Runner {
                stopped ();
        }
 
+       public InputMode[] get_available_input_modes () {
+               return { InputMode.GAMEPAD, InputMode.KEYBOARD };
+       }
+
        private void on_media_number_changed () {
                if (!is_initialized)
                        return;