[rygel] tracker: Add "New" container

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 404c55d698c49634db9368ebac386352d30f4599
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Wed Dec 8 20:32:20 2010 +0200

    tracker: Add "New" container
    
    Under each category container, add a child container that lists all items
    of that category that were added (to tracker-store) less than 3 days ago.

 src/plugins/tracker/Makefile.am                 |    1 +
 src/plugins/tracker/rygel-tracker-music.vala    |    1 +
 src/plugins/tracker/rygel-tracker-new.vala      |   57 +++++++++++++++++++++++
 src/plugins/tracker/rygel-tracker-pictures.vala |    1 +
 src/plugins/tracker/rygel-tracker-videos.vala   |    1 +
 5 files changed, 61 insertions(+), 0 deletions(-)
---
diff --git a/src/plugins/tracker/Makefile.am b/src/plugins/tracker/Makefile.am
index 2c78a5c..b626df8 100644
--- a/src/plugins/tracker/Makefile.am
+++ b/src/plugins/tracker/Makefile.am
@@ -23,6 +23,7 @@ librygel_media_tracker_la_SOURCES = rygel-tracker-root-container.vala \
 				    rygel-tracker-albums.vala \
 				    rygel-tracker-artists.vala \
 				    rygel-tracker-genre.vala \
+				    rygel-tracker-new.vala \
 				    rygel-tracker-search-container.vala \
 				    rygel-tracker-category-all-container.vala \
 				    rygel-tracker-query.vala \
diff --git a/src/plugins/tracker/rygel-tracker-music.vala b/src/plugins/tracker/rygel-tracker-music.vala
index 751b2a0..beda548 100644
--- a/src/plugins/tracker/rygel-tracker-music.vala
+++ b/src/plugins/tracker/rygel-tracker-music.vala
@@ -35,6 +35,7 @@ public class Rygel.Tracker.Music : CategoryContainer {
         this.add_child (new Genre (this));
         this.add_child (new Tags (this, item_factory));
         this.add_child (new Titles (this, this.item_factory));
+        this.add_child (new New (this, this.item_factory));
     }
 }
 
diff --git a/src/plugins/tracker/rygel-tracker-new.vala b/src/plugins/tracker/rygel-tracker-new.vala
new file mode 100644
index 0000000..9b87fc8
--- /dev/null
+++ b/src/plugins/tracker/rygel-tracker-new.vala
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2008 Zeeshan Ali (Khattak) <zeeshanak gnome org>.
+ * Copyright (C) 2008,2010 Nokia Corporation.
+ *
+ * Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
+ *
+ * This file is part of Rygel.
+ *
+ * Rygel is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Rygel 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+using Gee;
+
+/**
+ * A container listing all newly (<3 days) added items.
+ */
+public class Rygel.Tracker.New : Rygel.Tracker.SearchContainer {
+    private const string ADDED_PREDICATE = "tracker:added";
+    private const string ADDED_VARIABLE = "?added";
+    private const long THREE_DAYS_AS_SEC = 259200;
+
+    public New (MediaContainer parent, ItemFactory item_factory) {
+        var triplets = new QueryTriplets ();
+
+        triplets.add_triplet (new QueryTriplet (SelectionQuery.ITEM_VARIABLE,
+                                                "a",
+                                                item_factory.category));
+        triplets.add_triplet (new QueryTriplet (SelectionQuery.ITEM_VARIABLE,
+                                                ADDED_PREDICATE,
+                                                ADDED_VARIABLE));
+
+        var time = TimeVal ();
+        time.tv_sec -= THREE_DAYS_AS_SEC;
+
+        var filters = new ArrayList<string> ();
+        filters.add (ADDED_VARIABLE + " > \"" + time.to_iso8601 () + "\"");
+
+        base (parent.id + "New",
+              parent,
+              "New",
+              item_factory,
+              triplets,
+              filters);
+    }
+}
diff --git a/src/plugins/tracker/rygel-tracker-pictures.vala b/src/plugins/tracker/rygel-tracker-pictures.vala
index 75593f6..28636c7 100644
--- a/src/plugins/tracker/rygel-tracker-pictures.vala
+++ b/src/plugins/tracker/rygel-tracker-pictures.vala
@@ -33,6 +33,7 @@ public class Rygel.Tracker.Pictures : CategoryContainer {
         this.add_child (new Tags (this, this.item_factory));
         this.add_child (new Years (this, this.item_factory));
         this.add_child (new Titles (this, this.item_factory));
+        this.add_child (new New (this, this.item_factory));
     }
 }
 
diff --git a/src/plugins/tracker/rygel-tracker-videos.vala b/src/plugins/tracker/rygel-tracker-videos.vala
index c0be593..65da5bf 100644
--- a/src/plugins/tracker/rygel-tracker-videos.vala
+++ b/src/plugins/tracker/rygel-tracker-videos.vala
@@ -33,6 +33,7 @@ public class Rygel.Tracker.Videos : CategoryContainer {
         this.add_child (new Tags (this, this.item_factory));
         this.add_child (new Years (this, this.item_factory));
         this.add_child (new Titles (this, this.item_factory));
+        this.add_child (new New (this, this.item_factory));
     }
 }