[gnome-games] generic: Add GenericSyncGameUriAdapter

[Adrien Plazas <aplazas src gnome org>]

commit 61a3561594145fb93ccd623b8e9538f4ffb19f3b
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Tue Aug 16 14:57:42 2016 +0200

    generic: Add GenericSyncGameUriAdapter
    
    This will be used in a subsequent commit to allow asynchrous convertion
    of a game file URI into a game object from a delegate.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=769832

 src/Makefile.am                                |    1 +
 src/generic/generic-sync-game-uri-adapter.vala |   15 +++++++++++++++
 2 files changed, 16 insertions(+), 0 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index c1d4fc9..4ca5887 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -69,6 +69,7 @@ gnome_games_SOURCES = \
        gamepad/standard-gamepad-button.vala \
        \
        generic/generic-game.vala \
+       generic/generic-sync-game-uri-adapter.vala \
        generic/generic-title.vala \
        generic/generic-uid.vala \
        \
diff --git a/src/generic/generic-sync-game-uri-adapter.vala b/src/generic/generic-sync-game-uri-adapter.vala
new file mode 100644
index 0000000..77d71fb
--- /dev/null
+++ b/src/generic/generic-sync-game-uri-adapter.vala
@@ -0,0 +1,15 @@
+// This file is part of GNOME Games. License: GPLv3
+
+public class Games.GenericSyncGameUriAdapter : GameUriAdapter, Object {
+       public delegate Game GameForUri (string uri) throws Error;
+
+       private GameForUri callback;
+
+       public GenericSyncGameUriAdapter (owned GameForUri callback) {
+               this.callback = (owned) callback;
+       }
+
+       public async Game game_for_uri (string uri) throws Error {
+               return callback (uri);
+       }
+}