void ValidatePersistentDataOnSubTree(VisualElement root, bool enablePersistence)
{
// We don't want to persist when there is a high chance that there will
// be persistenceKey conflicts and data sharing. Generally, if an element
// has no persistenceKey, we do not persist it and any of its children.
// There are some exceptions, hence the use of IsPersitenceSupportedOnChildren().
if (!root.IsPersitenceSupportedOnChildren())
{
enablePersistence = false;
}
if (root.IsDirty(ChangeType.PersistentData))
{
root.OnPersistentDataReady(enablePersistence);
root.ClearDirty(ChangeType.PersistentData);
}
if (root.IsDirty(ChangeType.PersistentDataPath))
{
for (int i = 0; i < root.shadow.childCount; ++i)
{
ValidatePersistentDataOnSubTree(root.shadow[i], enablePersistence);
}
root.ClearDirty(ChangeType.PersistentDataPath);
}
}
private void ValidatePersistentDataOnSubTree(VisualElement ve, bool enablePersistence)
{
// We don't want to persist when there is a high chance that there will
// be persistenceKey conflicts and data sharing. Generally, if an element
// has no persistenceKey, we do not persist it and any of its children.
// There are some exceptions, hence the use of IsPersitenceSupportedOnChildren().
if (!ve.IsPersitenceSupportedOnChildren())
{
enablePersistence = false;
}
if (m_UpdateList.Contains(ve))
{
m_UpdateList.Remove(ve);
ve.OnPersistentDataReady(enablePersistence);
}
if (m_ParentList.Contains(ve))
{
m_ParentList.Remove(ve);
for (int i = 0; i < ve.shadow.childCount; ++i)
{
ValidatePersistentDataOnSubTree(ve.shadow[i], enablePersistence);
}
}
}
private void ValidatePersistentDataOnSubTree(VisualElement root, bool enablePersistence)
{
if (!root.IsPersitenceSupportedOnChildren())
{
enablePersistence = false;
}
if (root.IsDirty(ChangeType.PersistentData))
{
root.OnPersistentDataReady(enablePersistence);
root.ClearDirty(ChangeType.PersistentData);
}
if (root.IsDirty(ChangeType.PersistentDataPath))
{
for (int i = 0; i < root.shadow.childCount; i++)
{
this.ValidatePersistentDataOnSubTree(root.shadow[i], enablePersistence);
}
root.ClearDirty(ChangeType.PersistentDataPath);
}
}
