1 files changed, 146 insertions, 0 deletions
diff --git a/src/faces/FacesBranch.vala b/src/faces/FacesBranch.vala
new file mode 100644
index 0000000..1eb25cf
--- /dev/null
+++ b/src/faces/FacesBranch.vala
@@ -0,0 +1,146 @@
+/* Copyright 2016 Software Freedom Conservancy Inc.
+ *
+ * This software is licensed under the GNU Lesser General Public License
+ * (version 2.1 or later).  See the COPYING file in this distribution.
+ */
+
+#if ENABLE_FACES
+
+public class Faces.Branch : Sidebar.Branch {
+    private Gee.HashMap<Face, Faces.SidebarEntry> entry_map = new Gee.HashMap<Face, Faces.SidebarEntry>();
+    
+    public Branch() {
+        base (new Faces.Grouping(),
+            Sidebar.Branch.Options.HIDE_IF_EMPTY
+                | Sidebar.Branch.Options.AUTO_OPEN_ON_NEW_CHILD
+                | Sidebar.Branch.Options.STARTUP_EXPAND_TO_FIRST_CHILD,
+            comparator);
+        
+        // seed the branch with existing faces
+        on_faces_added_removed(Face.global.get_all(), null);
+        
+        // monitor collection for future events
+        Face.global.contents_altered.connect(on_faces_added_removed);
+        Face.global.items_altered.connect(on_faces_altered);
+    }
+    
+    ~Branch() {
+        Face.global.contents_altered.disconnect(on_faces_added_removed);
+        Face.global.items_altered.disconnect(on_faces_altered);
+    }
+    
+    public Faces.SidebarEntry? get_entry_for_face(Face face) {
+        return entry_map.get(face);
+    }
+    
+    private static int comparator(Sidebar.Entry a, Sidebar.Entry b) {
+        if (a == b)
+            return 0;
+        
+        return Face.compare_names(((Faces.SidebarEntry) a).for_face(),
+            ((Faces.SidebarEntry) b).for_face());
+    }
+    
+    private void on_faces_added_removed(Gee.Iterable<DataObject>? added, Gee.Iterable<DataObject>? removed) {
+        if (added != null) {
+            foreach (DataObject object in added) {
+                Face face = (Face) object;
+                
+                Faces.SidebarEntry entry = new Faces.SidebarEntry(face);
+                entry_map.set(face, entry);
+                
+                graft(get_root(), entry);
+            }
+        }
+        
+        if (removed != null) {
+            foreach (DataObject object in removed) {
+                Face face = (Face) object;
+                
+                Faces.SidebarEntry? entry = entry_map.get(face);
+                assert(entry != null);
+                
+                bool is_removed = entry_map.unset(face);
+                assert(is_removed);
+                
+                prune(entry);
+            }
+        }
+    }
+    
+    private void on_faces_altered(Gee.Map<DataObject, Alteration> altered) {
+        foreach (DataObject object in altered.keys) {
+            if (!altered.get(object).has_detail("metadata", "name"))
+                continue;
+            
+            Face face = (Face) object;
+            Faces.SidebarEntry? entry = entry_map.get(face);
+            assert(entry != null);
+            
+            entry.sidebar_name_changed(face.get_name());
+            entry.sidebar_tooltip_changed(face.get_name());
+            reorder(entry);
+        }
+    }
+}
+
+public class Faces.Grouping : Sidebar.Header {
+    public Grouping() {
+        base (_("Faces"));
+    }
+}
+
+public class Faces.SidebarEntry : Sidebar.SimplePageEntry, Sidebar.RenameableEntry,
+    Sidebar.DestroyableEntry {
+    private static string single_face_icon = Resources.ICON_ONE_FACE;
+    
+    private Face face;
+    
+    public SidebarEntry(Face face) {
+        this.face = face;
+    }
+    
+    internal static void init() {
+    }
+    
+    internal static void terminate() {
+    }
+    
+    public Face for_face() {
+        return face;
+    }
+    
+    public bool is_user_renameable() {
+        return true;
+    }
+    
+    public override string get_sidebar_name() {
+        return face.get_name();
+    }
+    
+    public override string? get_sidebar_icon() {
+        return single_face_icon;
+    }
+    
+    protected override Page create_page() {
+        return new FacePage(face);
+    }
+    
+    public void rename(string new_name) {
+        string? prepped = Face.prep_face_name(new_name);
+        if (prepped == null)
+            return;
+        
+        if (!Face.global.exists(prepped))
+            AppWindow.get_command_manager().execute(new RenameFaceCommand(face, prepped));
+        else if (prepped != face.get_name())
+            AppWindow.error_message(Resources.rename_face_exists_message(prepped));
+    }
+    
+    public void destroy_source() {
+        if (Dialogs.confirm_delete_face(face))
+            AppWindow.get_command_manager().execute(new DeleteFaceCommand(face));
+    }
+}
+
+#endif