#ifndef _Controller_h
#define _Controller_h
#pragma interface

class Controller {
  Controller *next_focus;		// chain of objects in focus
  static Controller *focus;
  void unlink();
protected:
  static char insert_mode;
public:
  Controller();
  static int dokey(int k);
  void setfocus(Controller *);
  static Controller *curfocus() { return focus; }
  bool hasFocus() const { return focus == this; }
  bool isActive() const { return next_focus != this; }
  virtual void getfocus() {}
  virtual void key(int);
  virtual void cmd(int);
  virtual int run();
  virtual void losefocus() {}
  virtual ~Controller();
};
#endif