Make MessageList extensible.

Also add a placeholder ESettingsMessageList extension.  Going to clean
out some of the direct GSettings usage in MessageList by adding GObject
properties and binding them to GSettings keys from the extension.

1 files changed, 12 insertions, 0 deletions

diff --git a/mail/message-list.c b/mail/message-list.c
index f8d2f10446..dcf5a245f1 100644
--- a/mail/message-list.c
+++ b/mail/message-list.c
@@ -162,6 +162,8 @@ G_DEFINE_TYPE_WITH_CODE (
 	message_list,
 	E_TYPE_TREE,
 	G_IMPLEMENT_INTERFACE (
+		E_TYPE_EXTENSIBLE, NULL)
+	G_IMPLEMENT_INTERFACE (
 		E_TYPE_SELECTABLE,
 		message_list_selectable_init))
 
@@ -2748,6 +2750,15 @@ message_list_finalize (GObject *object)
 }
 
 static void
+message_list_constructed (GObject *object)
+{
+	/* Chain up to parent's constructed() method. */
+	G_OBJECT_CLASS (message_list_parent_class)->constructed (object);
+
+	e_extensible_load_extensions (E_EXTENSIBLE (object));
+}
+
+static void
 message_list_selectable_update_actions (ESelectable *selectable,
                                         EFocusTracker *focus_tracker,
                                         GdkAtom *clipboard_targets,
@@ -2784,6 +2795,7 @@ message_list_class_init (MessageListClass *class)
 	object_class->get_property = message_list_get_property;
 	object_class->dispose = message_list_dispose;
 	object_class->finalize = message_list_finalize;
+	object_class->constructed = message_list_constructed;
 
 	class->message_list_built = NULL;