[shotwell] Hide "Folder" sidebar when empty

[Jens Georg <jensgeorg src gnome org>]

commit 68d021e037a95e77cea4afdd850378f1c52cd36e
Author: Jens Georg <mail jensge org>
Date:   Wed Oct 19 21:02:36 2016 +0200

    Hide "Folder" sidebar when empty
    
    Signed-off-by: Jens Georg <mail jensge org>
    
    https://bugzilla.gnome.org/show_bug.cgi?id=719127

 src/folders/Branch.vala |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/src/folders/Branch.vala b/src/folders/Branch.vala
index 38b8c80..d14a148 100644
--- a/src/folders/Branch.vala
+++ b/src/folders/Branch.vala
@@ -10,7 +10,10 @@ public class Folders.Branch : Sidebar.Branch {
     private File home_dir;
     
     public class Branch() {
-        base (new Folders.Root(), Sidebar.Branch.Options.STARTUP_OPEN_GROUPING, comparator);
+        base (new Folders.Root(),
+              Sidebar.Branch.Options.STARTUP_OPEN_GROUPING
+              | Sidebar.Branch.Options.HIDE_IF_EMPTY,
+              comparator);
         
         home_dir = File.new_for_path(Environment.get_home_dir());