bsw@1495: local id = param.get_id()
bsw@1495: 
bsw@1495: local file = File:by_id(id)
bsw@1495: 
bsw@1495: local output = file.data
bsw@1495: 
bsw@1495: if param.get("preview", atom.boolean) then
bsw@1495:   output = file.preview_data
bsw@1495: end
bsw@1495: 
bsw@1495: slot.set_layout(nil, file.content_type)
bsw@1495: slot.put_into("data", output)