[gnome-games/wip/exalm/platform-preferences: 20/46] core: Add PlatformRegister



commit 11eb45bfa2abac3d7324c6dcbf3b5cf3a9bd2650
Author: Alexander Mikhaylenko <exalm7659 gmail com>
Date:   Mon May 21 02:22:51 2018 +0500

    core: Add PlatformRegister
    
    This will be used in the following commits to represent the global
    collection of Platform objects.

 src/core/platform-register.vala | 37 +++++++++++++++++++++++++++++++++++++
 src/meson.build                 |  1 +
 2 files changed, 38 insertions(+)
---
diff --git a/src/core/platform-register.vala b/src/core/platform-register.vala
new file mode 100644
index 00000000..0e77b6c9
--- /dev/null
+++ b/src/core/platform-register.vala
@@ -0,0 +1,37 @@
+// This file is part of GNOME Games. License: GPL-3.0+.
+
+private class Games.PlatformRegister : Object {
+       private static PlatformRegister instance;
+       private HashTable<string, Platform> platforms;
+
+       private PlatformRegister () {
+               platforms = new HashTable<string, Platform> (str_hash, str_equal);
+       }
+
+       public static PlatformRegister get_register () {
+               if (instance == null)
+                       instance = new PlatformRegister ();
+
+               return instance;
+       }
+
+       public void add_platform (Platform platform) {
+               var platform_id = platform.get_id ();
+
+               assert (!platforms.contains (platform_id));
+
+               platforms[platform_id] = platform;
+       }
+
+       public List<Platform> get_all_platforms () {
+               var values = platforms.get_values ();
+
+               var result = new List<Platform> ();
+               foreach (var platform in values)
+                       result.prepend (platform);
+
+               result.sort (Platform.compare);
+
+               return result;
+       }
+}
diff --git a/src/meson.build b/src/meson.build
index 94bb1055..d328e227 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -31,6 +31,7 @@ vala_sources = [
   'core/media-set/media-set.vala',
   'core/media-set/media-set-error.vala',
   'core/platform.vala',
+  'core/platform-register.vala',
   'core/players.vala',
   'core/plugin.vala',
   'core/plugin-register.vala',


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