1 files changed, 45 insertions, 0 deletions
diff --git a/src/import-roll/ImportRollBranch.vala b/src/import-roll/ImportRollBranch.vala
new file mode 100644
index 0000000..32337cc
--- /dev/null
+++ b/src/import-roll/ImportRollBranch.vala
@@ -0,0 +1,45 @@
+public class ImportRoll.Branch : Sidebar.Branch {
+    private Gee.HashMap<int64?, ImportRoll.SidebarEntry> entries;
+
+    public class Branch() {
+        base (new ImportRoll.Root(),
+              Sidebar.Branch.Options.HIDE_IF_EMPTY,
+              ImportRoll.Branch.comparator);
+
+        this.entries = new Gee.HashMap<int64?, ImportRoll.SidebarEntry>((Gee.HashDataFunc<int64?>)GLib.int64_hash,
+        (Gee.EqualDataFunc<int64?>)GLib.int64_equal);
+
+        foreach (var source in MediaCollectionRegistry.get_instance().get_all()) {
+            on_import_rolls_altered(source);
+            source.import_roll_altered.connect(on_import_rolls_altered);
+        }
+
+    }
+
+    private static int comparator(Sidebar.Entry a, Sidebar.Entry b) {
+        if (a == b)
+            return 0;
+
+        var entry_a = (ImportRoll.SidebarEntry) a;
+        var entry_b = (ImportRoll.SidebarEntry) b;
+
+        return -ImportID.compare_func(entry_a.get_id(), entry_b.get_id());
+    }
+
+    private void on_import_rolls_altered(MediaSourceCollection source) {
+        var ids = source.get_import_roll_ids();
+        foreach (var id in ids) {
+            if (!this.entries.has_key (id.id)) {
+                var entry = new ImportRoll.SidebarEntry(id);
+                entries.set(id.id, entry);
+                graft(get_root(), entry);
+            }
+        }
+    }
+}
+
+private class ImportRoll.Root : Sidebar.Header {
+    public Root() {
+        base (_("Imports"), _("Browse the library’s import history"));
+    }
+}