[gnome-music: 1/6] add about dialog

[Vadim Rutkovsky <vrutkovsky src gnome org>]

commit 7ae000267f9db5f84ec5eea4a709a68206e2427f
Author: Lubosz Sarnecki <lubosz gmail com>
Date:   Tue Aug 6 16:06:19 2013 +0200

    add about dialog

 data/AboutDialog.ui            |   37 +++++++++++++++++++++++++++++++++++++
 data/gnome-music.gresource.xml |    1 +
 gnomemusic/application.py      |   10 +++++++++-
 3 files changed, 47 insertions(+), 1 deletions(-)
---
diff --git a/data/AboutDialog.ui b/data/AboutDialog.ui
new file mode 100644
index 0000000..420eeb4
--- /dev/null
+++ b/data/AboutDialog.ui
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface domain="gnome-music">
+  <!-- interface-requires gtk+ 3.0 -->
+  <object class="GtkAboutDialog" id="about_dialog">
+    <property name="version">@PACKAGE_VERSION@</property>
+    <property name="copyright" translatable="yes">Copyright © 2013 GNOME Music Developers</property>
+    <property name="comments" translatable="yes">A Music player and management application for 
GNOME.</property>
+    <property name="website">https://wiki.gnome.org/Music</property>
+    <property name="website_label" translatable="yes">Visit GNOME Music web site</property>
+    <property name="license" translatable="yes">Music is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as 
+  published by the Free Software Foundation; either version 2 of the 
+  License, or (at your option) any later version.
+
+  Music is distributed in the hope that it will be useful
+  but WITHOUT ANY WARRANTY; without even the implied warranty of 
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License 
+  along with Music; if not, write to the Free Software 
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 
+  MA 02110-1301, USA.</property>
+    <property name="authors">Maintainers:
+    Seif Lotfy &lt;seif lotfy com&gt;
+    Vadim Rutkovsky &lt;vrutkovs redhat com&gt;
+
+Contributors:
+    Eslam Mostafa &lt;cseslam gmail com&gt;
+    Juan Suarez &lt;jasuarez igalia com&gt;
+    Guillaume Quintard &lt;guillaume quintard gmail com&gt;</property>
+    <property name="artists">William Jon McCann &lt;william jon mccann gmail com&gt;
+    Jakub Steiner &lt;jimmac gmail com&gt;
+    Allan Day &lt;allanpday gmail com&gt;</property>
+    <property name="logo-icon-name">gnome-music</property>
+  </object>
+</interface>
diff --git a/data/gnome-music.gresource.xml b/data/gnome-music.gresource.xml
index 28b6607..92a4560 100644
--- a/data/gnome-music.gresource.xml
+++ b/data/gnome-music.gresource.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <gresources>
   <gresource prefix="/org/gnome/Music">
+    <file preprocess="xml-stripblanks">AboutDialog.ui</file>
     <file preprocess="xml-stripblanks">app-menu.ui</file>
     <file>application.css</file>
     <file preprocess="xml-stripblanks">AlbumWidget.ui</file>
diff --git a/gnomemusic/application.py b/gnomemusic/application.py
index b9ebc78..9ce32f0 100644
--- a/gnomemusic/application.py
+++ b/gnomemusic/application.py
@@ -52,7 +52,15 @@ class Application(Gtk.Application):
         pass
 
     def about(self, action, param):
-        pass
+        builder = Gtk.Builder()
+        builder.add_from_resource('/org/gnome/Music/AboutDialog.ui')
+        about = builder.get_object('about_dialog')
+        about.set_version("0.3")
+        about.connect("response", self.about_response)
+        about.show()
+
+    def about_response(self, dialog, response):
+        dialog.destroy()
 
     def do_startup(self):
         Gtk.Application.do_startup(self)