I want to open a form view in a popup but not in editable mode. The form view should be in saved mode and not in edit mode.

Normally when we open a form in a popup, it always shows the popup in editable mode.

def action_view_product(self):
    return {
     'type': 'ir.actions.act_window',
     'name': 'Products',
     'view_mode': 'form',
     'view_type': 'form',
     'res_model': "product.template",
     'res_id': self.id,
     'target': 'new',
    }