public class ImportRoll.Branch : Sidebar.Branch { private Gee.HashMap entries; public Branch() { base (new ImportRoll.Root(), Sidebar.Branch.Options.HIDE_IF_EMPTY, ImportRoll.Branch.comparator); this.entries = new Gee.HashMap(int64_hash, 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")); } }