[gnome-games] gameinfo: Add GameinfoDiscIdDiscTitle

[Adrien Plazas <aplazas src gnome org>]

commit 7727b6f5633da01a0b652cecb7db13146218e887
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Fri Aug 19 21:36:26 2016 +0200

    gameinfo: Add GameinfoDiscIdDiscTitle
    
    This will be used in subsequent commits to get a disc's title from a
    Gameinfo document and its ID.

 po/POTFILES.in                                |    1 +
 po/POTFILES.skip                              |    1 +
 src/Makefile.am                               |    1 +
 src/gameinfo/gameinfo-disc-id-disc-title.vala |   29 +++++++++++++++++++++++++
 4 files changed, 32 insertions(+), 0 deletions(-)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index c2e3f86..0399df6 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -32,6 +32,7 @@ plugins/steam/src/steam-title.vala
 plugins/wii/src/wii-header.vala
 src/command/command-runner.vala
 src/core/plugin-registrar.vala
+src/gameinfo/gameinfo-disc-id-disc-title.vala
 src/gamepad/gamepad-mapping.vala
 src/gamepad/linux/linux-raw-gamepad.vala
 src/retro/retro-runner.vala
diff --git a/po/POTFILES.skip b/po/POTFILES.skip
index 0f6fad4..9af222d 100644
--- a/po/POTFILES.skip
+++ b/po/POTFILES.skip
@@ -19,6 +19,7 @@ plugins/steam/src/steam-title.c
 plugins/wii/src/wii-header.c
 src/command/command-runner.c
 src/core/plugin-registrar.c
+src/gameinfo/gameinfo-disc-id-disc-title.c
 src/gamepad/gamepad-mapping.c
 src/gamepad/linux/linux-raw-gamepad.c
 src/retro/retro-runner.c
diff --git a/src/Makefile.am b/src/Makefile.am
index 22de1bf..2064097 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -60,6 +60,7 @@ gnome_games_SOURCES = \
        \
        gameinfo/gameinfo-doc.vala \
        gameinfo/gameinfo-error.vala \
+       gameinfo/gameinfo-disc-id-disc-title.vala \
        gameinfo/gameinfo-disc-id-game-title.vala \
        \
        gamepad/gamepad.vala \
diff --git a/src/gameinfo/gameinfo-disc-id-disc-title.vala b/src/gameinfo/gameinfo-disc-id-disc-title.vala
new file mode 100644
index 0000000..541dfc2
--- /dev/null
+++ b/src/gameinfo/gameinfo-disc-id-disc-title.vala
@@ -0,0 +1,29 @@
+// This file is part of GNOME Games. License: GPLv3
+
+public class Games.GameinfoDiscIdDiscTitle : Object, Title {
+       private GameinfoDoc gameinfo;
+       private string disc_id;
+       private string? domain;
+       private string title;
+
+       public GameinfoDiscIdDiscTitle (GameinfoDoc gameinfo, string disc_id, string? domain = null) {
+               this.gameinfo = gameinfo;
+               this.disc_id = disc_id;
+               this.domain = domain;
+       }
+
+       public string get_title () throws Error {
+               if (title != null)
+                       return dgettext (domain, title);
+
+               try {
+                       title = gameinfo.get_disc_title_for_disc_id (disc_id);
+               }
+               catch (Error e) {
+                       var index = gameinfo.get_disc_set_index_for_disc_id (disc_id);
+                       title = _("Disc %d").printf (index + 1);
+               }
+
+               return dgettext (domain, title);
+       }
+}