Object (@NotNull final Object element) { if (element instanceof ComponentTreeStructureRoot) { return null; } else if (element instanceof LwInspectionSuppression[] || element instanceof RadButtonGroup[]) { return myRootElement; } else if (element instanceof LwInspectionSuppression) { return myEditor.getRootContainer().getInspectionSuppressions(); } else if (element instanceof RadButtonGroup) { return myEditor.getRootContainer().getButtonGroups(); } else if (element instanceof ComponentPtr ptr) { // RadContainer is also RadComponent if (!ptr.isValid()) return myRootElement; final RadComponent component = ptr.getComponent(); if (component instanceof RadRootContainer) { return myRootElement; } else { return component.getParent() != null ? new ComponentPtr(myEditor, component.getParent(), false) : null; } } else { throw new IllegalArgumentException("unknown element: " + element); } }