lib: add clear method to TurnOrder

4 files changed, 52 insertions, 1 deletions

diff --git a/lib/src/turns-turn-order.c b/lib/src/turns-turn-order.c
index 071e4c5..5d6f99b 100644
--- a/lib/src/turns-turn-order.c
+++ b/lib/src/turns-turn-order.c
@@ -73,6 +73,27 @@ static void sort_participants(TurnsTurnOrder * self)
   g_list_model_items_changed(G_LIST_MODEL(self), 0, participant_count, participant_count);
 }
 
+static void clear_participants(TurnsTurnOrder * self)
+{
+  g_return_if_fail(TURNS_IS_TURN_ORDER(self));
+
+  g_slist_free_full(self->participants, g_object_unref);
+  self->participants = nullptr;
+}
+
+static void set_running(TurnsTurnOrder * self, gboolean value)
+{
+  g_return_if_fail(TURNS_IS_TURN_ORDER(self));
+
+  if (self->running == value)
+  {
+    return;
+  }
+
+  self->running = value;
+  g_object_notify_by_pspec(G_OBJECT(self), properties[PROP_RUNNING]);
+}
+
 static void handle_participant_property_changed(TurnsParticipant const *, GParamSpec *, TurnsTurnOrder * self)
 {
   sort_participants(self);
@@ -120,7 +141,7 @@ static void turns_turn_order_finalize(GObject * self)
 {
   auto instance = TURNS_TURN_ORDER(self);
 
-  g_slist_free_full(instance->participants, g_object_unref);
+  clear_participants(instance);
 
   G_OBJECT_CLASS(turns_turn_order_parent_class)->finalize(self);
 }
@@ -193,6 +214,22 @@ void turns_turn_order_add(TurnsTurnOrder * self, TurnsParticipant * participant)
   g_list_model_items_changed(G_LIST_MODEL(self), position, 0, 1);
 }
 
+void turns_turn_order_clear(TurnsTurnOrder * self)
+{
+  g_return_if_fail(TURNS_IS_TURN_ORDER(self));
+
+  auto old_size = turns_turn_order_get_participant_count(self);
+  clear_participants(self);
+
+  g_object_freeze_notify(G_OBJECT(self));
+
+  set_running(self, false);
+
+  g_object_thaw_notify(G_OBJECT(self));
+
+  g_list_model_items_changed(G_LIST_MODEL(self), 0, old_size, 0);
+}
+
 gsize turns_turn_order_get_participant_count(TurnsTurnOrder const * self)
 {
   g_return_val_if_fail(TURNS_IS_TURN_ORDER((TurnsTurnOrder *)self), 0);
diff --git a/lib/src/turns-turn-order.h b/lib/src/turns-turn-order.h
index ce4d992..a69700f 100644
--- a/lib/src/turns-turn-order.h
+++ b/lib/src/turns-turn-order.h
@@ -59,6 +59,14 @@ TurnsTurnOrder * turns_turn_order_new(void) G_GNUC_WARN_UNUSED_RESULT;
 void turns_turn_order_add(TurnsTurnOrder * self, TurnsParticipant * participant);
 
 /**
+ * turns_turn_order_clear:
+ * @self: a turn order
+ *
+ * Removes all participants from a turn order.
+ */
+void turns_turn_order_clear(TurnsTurnOrder * self);
+
+/**
  * turns_turn_order_get_participant_count:
  * @self: a turn order.
  *
diff --git a/lib/src/turnsmm/turn-order.cpp b/lib/src/turnsmm/turn-order.cpp
index 7fefa01..35694b2 100644
--- a/lib/src/turnsmm/turn-order.cpp
+++ b/lib/src/turnsmm/turn-order.cpp
@@ -93,6 +93,11 @@ namespace Turns
     return turns_turn_order_add(unwrap(this), unwrap(participant));
   }
 
+  auto TurnOrder::clear() noexcept -> void
+  {
+    return turns_turn_order_clear(Glib::unwrap(this));
+  }
+
   auto TurnOrder::get_participant_count() const noexcept -> std::size_t
   {
     return turns_turn_order_get_participant_count(unwrap(this));
diff --git a/lib/src/turnsmm/turn-order.hpp b/lib/src/turnsmm/turn-order.hpp
index caaac24..64f72aa 100644
--- a/lib/src/turnsmm/turn-order.hpp
+++ b/lib/src/turnsmm/turn-order.hpp
@@ -50,6 +50,7 @@ namespace Turns
     [[nodiscard]] auto gobj_copy() noexcept -> BaseObjectType *;
 
     auto add(Glib::RefPtr<Participant> const & participant) noexcept -> void;
+    auto clear() noexcept -> void;
 
     [[nodiscard]] auto get_participant_count() const noexcept -> std::size_t;
     [[nodiscard]] auto get_running() const noexcept -> bool;