1 files changed, 45 insertions, 0 deletions
diff --git a/src/library/OfflineSidebarEntry.vala b/src/library/OfflineSidebarEntry.vala
new file mode 100644
index 0000000..34c09a0
--- /dev/null
+++ b/src/library/OfflineSidebarEntry.vala
@@ -0,0 +1,45 @@
+/* Copyright 2011-2015 Yorba Foundation
+ *
+ * This software is licensed under the GNU Lesser General Public License
+ * (version 2.1 or later).  See the COPYING file in this distribution.
+ */
+
+public class Library.OfflineSidebarEntry : Library.HideablePageEntry {
+    public OfflineSidebarEntry() {
+        
+        foreach (MediaSourceCollection media_sources in MediaCollectionRegistry.get_instance().get_all())
+            media_sources.offline_contents_altered.connect(on_offline_contents_altered);
+        
+        visible = (get_total_offline() != 0);
+    }
+
+    ~OfflineSidebarEntry() {
+        foreach (MediaSourceCollection media_sources in MediaCollectionRegistry.get_instance().get_all())
+            media_sources.trashcan_contents_altered.disconnect(on_offline_contents_altered);
+    }
+    
+    private void on_offline_contents_altered() {
+        visible = (get_total_offline() != 0);
+    }
+    
+    private int get_total_offline() {
+        int total = 0;
+        foreach (MediaSourceCollection media_sources in MediaCollectionRegistry.get_instance().get_all())
+            total += media_sources.get_offline_bin_contents().size;
+        
+        return total;
+    }
+    
+    public override string get_sidebar_name() {
+        return OfflinePage.NAME;
+    }
+    
+    public override string? get_sidebar_icon() {
+        return Resources.ICON_MISSING_FILES;
+    }
+    
+    protected override Page create_page() {
+        return new OfflinePage();
+    }
+}
+