[gnome-builder] libide/tweaks: keep branch nodes around from visiting

[Christian Hergert <chergert src gnome org>]

commit 3063acc1ae3d6e22fa6e0670b6a0cabc00d77fa0
Author: Christian Hergert <chergert redhat com>
Date:   Tue Aug 16 22:02:39 2022 -0700

    libide/tweaks: keep branch nodes around from visiting
    
    We might have an intermediate branch around that requires stashing or we
    loose our copy-on-clone chain to the root. Just hold a reference for each
    of the items we inflate.

 src/libide/tweaks/ide-tweaks-model.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
---
diff --git a/src/libide/tweaks/ide-tweaks-model.c b/src/libide/tweaks/ide-tweaks-model.c
index 1107e7e8b..5a50afb20 100644
--- a/src/libide/tweaks/ide-tweaks-model.c
+++ b/src/libide/tweaks/ide-tweaks-model.c
@@ -31,6 +31,7 @@ struct _IdeTweaksModel
   GObject               parent_instance;
   IdeTweaksItem        *item;
   GPtrArray            *items;
+  GPtrArray            *branches;
   IdeTweaksItemVisitor  visitor;
   gpointer              visitor_data;
   GDestroyNotify        visitor_data_destroy;
@@ -101,6 +102,20 @@ ide_tweaks_model_populate_cb (IdeTweaksItem *item,
     {
     case IDE_TWEAKS_ITEM_VISIT_ACCEPT_AND_CONTINUE:
       g_ptr_array_add (self->items, g_object_ref (item));
+
+      /* We might need to keep the parents around up to our factory so
+       * that they are not disposed after visiting.
+       */
+      for (IdeTweaksItem *iter = ide_tweaks_item_get_parent (item);
+           iter != NULL && iter != self->item;
+           iter = ide_tweaks_item_get_parent (iter))
+        {
+          guint pos;
+
+          if (!g_ptr_array_find (self->branches, iter, &pos))
+            g_ptr_array_add (self->branches, g_object_ref (iter));
+        }
+
       return IDE_TWEAKS_ITEM_VISIT_CONTINUE;
 
     case IDE_TWEAKS_ITEM_VISIT_RECURSE:
@@ -153,6 +168,7 @@ ide_tweaks_model_dispose (GObject *object)
   IdeTweaksModel *self = (IdeTweaksModel *)object;
 
   g_clear_object (&self->item);
+  g_clear_pointer (&self->branches, g_ptr_array_unref);
 
   if (self->visitor_data_destroy)
     {
@@ -202,6 +218,7 @@ ide_tweaks_model_class_init (IdeTweaksModelClass *klass)
 static void
 ide_tweaks_model_init (IdeTweaksModel *self)
 {
+  self->branches = g_ptr_array_new_with_free_func (g_object_unref);
 }
 
 /**