unsigned surfaceID() const;
std::vector<unsigned> renderOrder() const;
std::string role(unsigned surface) const;
+ std::string role() const;
const std::vector<std::string> &roles() const;
void setRole(const std::string& role);
void appendRole(const std::string& role);
std::string id;
unsigned layer;
std::string wm_layer_name;
+ std::string main_role;
std::string area;
unsigned surface; // currently, main application has only one surface.
std::vector<std::string> role_list;