[gnome-games/wip/aplazas/781334-refactor-game-source: 8/12] sega-saturn: Provide MIME types and URI game factories

[Adrien Plazas <aplazas src gnome org>]

commit 2f419bedca27a9228d31c05ace665ae18c5c1bf8
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Thu May 4 15:39:57 2017 +0200

    sega-saturn: Provide MIME types and URI game factories
    
    Also stop providing a GameSource.
    
    This helps splitting the conerns of looking for game resources and
    building games from them.

 plugins/sega-saturn/src/sega-saturn-plugin.vala |   46 ++++++++++++++++------
 1 files changed, 33 insertions(+), 13 deletions(-)
---
diff --git a/plugins/sega-saturn/src/sega-saturn-plugin.vala b/plugins/sega-saturn/src/sega-saturn-plugin.vala
index 7d848e7..7336b24 100644
--- a/plugins/sega-saturn/src/sega-saturn-plugin.vala
+++ b/plugins/sega-saturn/src/sega-saturn-plugin.vala
@@ -1,25 +1,45 @@
 // This file is part of GNOME Games. License: GPL-3.0+.
 
 private class Games.SegaSaturnPlugin : Object, Plugin {
-       private const string SEARCHED_MIME_TYPE = "application/x-cue";
-       private const string SPECIFIC_MIME_TYPE = "application/x-saturn-rom";
+       private const string CUE_MIME_TYPE = "application/x-cue";
+       private const string SEGA_SATURN_MIME_TYPE = "application/x-saturn-rom";
        private const string PLATFORM = "SegaSaturn";
 
-       public GameSource? get_game_source () throws Error {
+       public string[] get_mime_types () {
+               return {
+                       CUE_MIME_TYPE,
+                       SEGA_SATURN_MIME_TYPE,
+               };
+       }
+
+       public UriGameFactory[] get_uri_game_factories () {
                var game_uri_adapter = new GenericSyncGameUriAdapter (game_for_uri);
                var factory = new GenericUriGameFactory (game_uri_adapter);
-               var query = new MimeTypeTrackerQuery (SEARCHED_MIME_TYPE, factory);
-               var connection = Tracker.Sparql.Connection.@get ();
-               var source = new TrackerGameSource (connection);
-               source.add_query (query);
+               factory.add_mime_type (CUE_MIME_TYPE);
+               factory.add_mime_type (SEGA_SATURN_MIME_TYPE);
 
-               return source;
+               return { factory };
        }
 
        private static Game game_for_uri (string uri) throws Error {
                var file = File.new_for_uri (uri);
-               var cue = new CueSheet (file);
-               var bin_file = get_binary_file (cue);
+               var file_info = file.query_info (FileAttribute.STANDARD_CONTENT_TYPE, 
FileQueryInfoFlags.NONE);
+               var mime_type = file_info.get_content_type ();
+
+               File bin_file;
+               switch (mime_type) {
+               case CUE_MIME_TYPE:
+                       var cue = new CueSheet (file);
+                       bin_file = get_binary_file (cue);
+
+                       break;
+               case SEGA_SATURN_MIME_TYPE:
+                       bin_file = file;
+
+                       break;
+               default:
+                       throw new SegaSaturnError.INVALID_FILE_TYPE ("Invalid file type: expected %s or %s 
but got %s for file %s.", CUE_MIME_TYPE, SEGA_SATURN_MIME_TYPE, mime_type, uri);
+               }
 
                var header = new SegaSaturnHeader (bin_file);
                header.check_validity ();
@@ -27,11 +47,11 @@ private class Games.SegaSaturnPlugin : Object, Plugin {
                var uid = new SegaSaturnUid (header);
                var title = new FilenameTitle (uri);
                var icon = new DummyIcon ();
-               var media = new GriloMedia (title, SPECIFIC_MIME_TYPE);
+               var media = new GriloMedia (title, SEGA_SATURN_MIME_TYPE);
                var cover = new CompositeCover ({
                        new LocalCover (uri),
                        new GriloCover (media, uid)});
-               var core_source = new RetroCoreSource (PLATFORM, { SEARCHED_MIME_TYPE, SPECIFIC_MIME_TYPE });
+               var core_source = new RetroCoreSource (PLATFORM, { CUE_MIME_TYPE, SEGA_SATURN_MIME_TYPE });
                var runner = new RetroRunner (core_source, uri, uid, title);
 
                return new GenericGame (title, icon, cover, runner);
@@ -51,7 +71,7 @@ private class Games.SegaSaturnPlugin : Object, Plugin {
                        throw new SegaSaturnError.INVALID_CUE_SHEET (_("The file “%s” doesn’t have a valid 
track mode for track %d."), cue.file.get_uri (), track.track_number);
 
                var file_info = file.file.query_info ("*", FileQueryInfoFlags.NONE);
-               if (file_info.get_content_type () != SPECIFIC_MIME_TYPE)
+               if (file_info.get_content_type () != SEGA_SATURN_MIME_TYPE)
                        throw new SegaSaturnError.INVALID_FILE_TYPE (_("The file “%s” doesn’t have a valid 
Sega Saturn binary file."), cue.file.get_uri ());
 
                return file.file;