[gnome-games] retro: Use Core.supports_serialization()

[Adrien Plazas <aplazas src gnome org>]

commit 5c0c3375b8f219a2a1a80bf08279b56785389b12
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Wed Jan 25 18:19:16 2017 +0100

    retro: Use Core.supports_serialization()
    
    Use Core.supports_serialization() instead of relying on an external
    source for the information.
    
    This makes distributing the cores easier.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=777755

 src/retro/retro-runner.vala |   39 +++++++++------------------------------
 1 files changed, 9 insertions(+), 30 deletions(-)
---
diff --git a/src/retro/retro-runner.vala b/src/retro/retro-runner.vala
index 45ac153..7690d78 100644
--- a/src/retro/retro-runner.vala
+++ b/src/retro/retro-runner.vala
@@ -11,10 +11,11 @@ public class Games.RetroRunner : Object, Runner {
 
        public bool can_resume {
                get {
-                       if (!core_supports_snapshotting)
-                               return false;
-
                        try {
+                               init ();
+                               if (!core.supports_serialization ())
+                                       return false;
+
                                var snapshot_path = get_snapshot_path ();
                                var file = File.new_for_path (snapshot_path);
 
@@ -48,7 +49,6 @@ public class Games.RetroRunner : Object, Runner {
        private string module_basename;
        private string[] mime_types;
        private Uid uid;
-       private bool core_supports_snapshotting;
        private InputCapabilities input_capabilities;
 
        private bool _running;
@@ -79,7 +79,6 @@ public class Games.RetroRunner : Object, Runner {
                this.mime_types = mime_types;
                this.module_basename = module_basename;
                this.uid = uid;
-               this.core_supports_snapshotting = core_supports_snapshotting;
                this.input_capabilities = null;
        }
 
@@ -92,7 +91,6 @@ public class Games.RetroRunner : Object, Runner {
                this.mime_types = mime_types;
                this.module_basename = module_basename;
                this.uid = uid;
-               this.core_supports_snapshotting = core_supports_snapshotting;
                this.input_capabilities = input_capabilities;
 
                _media_set.notify["selected-media-number"].connect (on_media_number_changed);
@@ -240,30 +238,11 @@ public class Games.RetroRunner : Object, Runner {
                if (!module_info.contains ("supported_mimetypes"))
                        return false;
 
-               if (!module_info.contains ("supports_serialization"))
-                       return false;
-
                var supported_mime_types = module_info["supported_mimetypes"];
                foreach (var mime_type in mime_types)
                        if (!(mime_type in supported_mime_types))
                                return false;
 
-               var supports_serialization = false;
-               switch (module_info["supports_serialization"]) {
-               case "true":
-                       supports_serialization = true;
-
-                       break;
-               case "false":
-                       supports_serialization = false;
-
-                       break;
-               default:
-                       return false;
-               }
-
-               core_supports_snapshotting = supports_serialization;
-
                return true;
        }
 
@@ -364,7 +343,7 @@ public class Games.RetroRunner : Object, Runner {
                if (media_set.get_size () > 1)
                        save_media_data ();
 
-               if (!core_supports_snapshotting)
+               if (!core.supports_serialization ())
                        return;
 
                save_snapshot ();
@@ -425,7 +404,7 @@ public class Games.RetroRunner : Object, Runner {
        }
 
        private void save_snapshot () throws Error {
-               if (!core_supports_snapshotting)
+               if (!core.supports_serialization ())
                        return;
 
                var buffer = core.serialize_state ();
@@ -439,7 +418,7 @@ public class Games.RetroRunner : Object, Runner {
        }
 
        private void load_snapshot () throws Error {
-               if (!core_supports_snapshotting)
+               if (!core.supports_serialization ())
                        return;
 
                var snapshot_path = get_snapshot_path ();
@@ -496,7 +475,7 @@ public class Games.RetroRunner : Object, Runner {
        }
 
        private void save_screenshot () throws Error {
-               if (!core_supports_snapshotting)
+               if (!core.supports_serialization ())
                        return;
 
                var pixbuf = video.pixbuf;
@@ -509,7 +488,7 @@ public class Games.RetroRunner : Object, Runner {
        }
 
        private void load_screenshot () throws Error {
-               if (!core_supports_snapshotting)
+               if (!core.supports_serialization ())
                        return;
 
                var screenshot_path = get_screenshot_path ();