Active euthanasia is where proactive steps are taken to hasten someone’s death with the aim of minimizing suffering.
Non-voluntary euthanasia involves patients not competent to consent (e.g., those in a coma, with dementia, etc.), where someone else consents to hastening their death.
If a patient has (while competent) officially filed an “advance directive” about hastening their death under their current health circumstances, then this is NOT a case of non-voluntary euthanasia.