[gnome-games/wip/exalm/loading: 14/29] libretro: Add runner factory

[Alexander Mikhaylenko <alexm src gnome org>]

commit 2bf51b2bf2ef6c31a2d511eba41e2b7c6620bdb9
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Tue Nov 12 01:39:47 2019 +0500

    libretro: Add runner factory

 plugins/libretro/src/libretro-plugin.vala | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)
---
diff --git a/plugins/libretro/src/libretro-plugin.vala b/plugins/libretro/src/libretro-plugin.vala
index 3e93f4da..ac3b9b12 100644
--- a/plugins/libretro/src/libretro-plugin.vala
+++ b/plugins/libretro/src/libretro-plugin.vala
@@ -30,7 +30,14 @@ private class Games.LibretroPlugin : Object, Plugin {
                return { factory };
        }
 
-       private static Game game_for_uri (Uri uri) throws Error {
+       public RunnerFactory[] get_runner_factories () {
+               var factory = new GenericRunnerFactory (create_runner);
+               factory.add_platform (platform);
+
+               return { factory };
+       }
+
+       private static Retro.CoreDescriptor get_core_descriptor (Uri uri) throws Error {
                var file_uri = new Uri.from_uri_and_scheme (uri, "file");
                var file = file_uri.to_file ();
                if (!file.query_exists ())
@@ -41,6 +48,12 @@ private class Games.LibretroPlugin : Object, Plugin {
                if (!core_descriptor.get_is_game ())
                        throw new LibretroError.NOT_A_GAME ("This Libretro core descriptor doesn't isn’t a 
game: %s", uri.to_string ());
 
+               return core_descriptor;
+       }
+
+       private static Game game_for_uri (Uri uri) throws Error {
+               var core_descriptor = get_core_descriptor (uri);
+
                var uid = new LibretroUid (core_descriptor);
                var title = new LibretroTitle (core_descriptor);
                var icon = new LibretroIcon (core_descriptor);
@@ -59,6 +72,20 @@ private class Games.LibretroPlugin : Object, Plugin {
 
                return game;
        }
+
+       private static Runner? create_runner (Game game) throws Error {
+               var uri = game.get_uri ();
+               var core_descriptor = get_core_descriptor (uri);
+               var input_capabilities = new LibretroInputCapabilities ();
+
+               var builder = new RetroRunnerBuilder ();
+               builder.core_descriptor = core_descriptor;
+               builder.platform = platform;
+               builder.uid = game.get_uid ();
+               builder.title = game.name;
+               builder.input_capabilities = input_capabilities;
+               return builder.to_runner ();
+       }
 }
 
 [ModuleInit]