#include "xlib.h"

int Get_Mode (s48_value m){
  return S48_EXTRACT_BOOLEAN(m) ? GrabModeSync :GrabModeAsync;
}


s48_value scx_Grab_Pointer (s48_value dpy, s48_value win, 
			    s48_value ownerp, s48_value events, 
			    s48_value psyncp, s48_value ksyncp, 
			    s48_value confine_to, s48_value cursor, 
			    s48_value time) {
  int res = XGrabPointer(SCX_EXTRACT_DISPLAY(dpy),
			 SCX_EXTRACT_WINDOW(win),
			 S48_EXTRACT_BOOLEAN(ownerp),
			 s48_extract_integer(events),
			 Get_Mode(psyncp), 
			 Get_Mode(ksyncp),
			 SCX_EXTRACT_WINDOW(confine_to),
			 SCX_EXTRACT_CURSOR(cursor),
			 SCX_EXTRACT_TIME(time));
  return s48_enter_integer(res);
}


s48_value scx_Ungrab_Pointer (s48_value dpy, s48_value time) {
  XUngrabPointer (SCX_EXTRACT_DISPLAY(dpy), SCX_EXTRACT_TIME(time));
  return S48_UNSPECIFIC;
}


s48_value scx_Grab_Button (s48_value dpy, s48_value win, s48_value button, 
			   s48_value mods, s48_value ownerp, s48_value events,
			   s48_value psyncp, s48_value  ksyncp, 
			   s48_value confine_to, s48_value cursor){
  XGrabButton(SCX_EXTRACT_DISPLAY(dpy),
	      s48_extract_integer(button),
	      s48_extract_integer(mods),
	      SCX_EXTRACT_WINDOW(win),
	      S48_EXTRACT_BOOLEAN(ownerp),
	      s48_extract_integer(events),
	      Get_Mode(psyncp), Get_Mode(ksyncp),
	      SCX_EXTRACT_WINDOW(confine_to),
	      SCX_EXTRACT_CURSOR(cursor));
  return S48_UNSPECIFIC;
}


s48_value scx_Ungrab_Button (s48_value Xdpy, s48_value Xwin,
			     s48_value button, s48_value mods){
  XUngrabButton(SCX_EXTRACT_DISPLAY(Xdpy), 
		s48_extract_integer(button),
		s48_extract_integer(mods),
		SCX_EXTRACT_WINDOW(Xwin));
  return S48_UNSPECIFIC;
}


s48_value scx_Change_Active_Pointer_Grab (s48_value Xdpy, s48_value events,
					  s48_value cursor, s48_value time){
    XChangeActivePointerGrab (SCX_EXTRACT_DISPLAY(Xdpy),
			      s48_extract_integer(events),
			      SCX_EXTRACT_CURSOR(cursor),
			      SCX_EXTRACT_TIME(time));
    return S48_UNSPECIFIC;
}


s48_value scx_Grab_Keyboard (s48_value Xdpy, s48_value Xwin, s48_value ownerp, 
			     s48_value psyncp, s48_value ksyncp,
			     s48_value time){
  int res = XGrabKeyboard( SCX_EXTRACT_DISPLAY(Xdpy),
			   SCX_EXTRACT_WINDOW(Xwin),
			   S48_EXTRACT_BOOLEAN(ownerp),
			   Get_Mode(psyncp),
			   Get_Mode (ksyncp),
			   SCX_EXTRACT_TIME(time));
  return s48_enter_integer(res);
}


s48_value scx_Ungrab_Keyboard (s48_value Xdpy, s48_value time){
  XUngrabKeyboard (SCX_EXTRACT_DISPLAY(Xdpy),
		   SCX_EXTRACT_TIME(time));
  return S48_UNSPECIFIC;
}


s48_value scx_Grab_Key (s48_value Xdpy, s48_value Xwin, s48_value key,
			s48_value mods, s48_value ownerp, s48_value psyncp,
			s48_value ksyncp, s48_value flag){
  int keycode = AnyKey;
  if (!S48_EXTRACT_BOOLEAN(flag))
    keycode = (int)s48_extract_integer(key);
  XGrabKey (SCX_EXTRACT_DISPLAY(Xdpy),
	    keycode, 
	    s48_extract_integer(mods),
	    SCX_EXTRACT_WINDOW(Xwin),
	    S48_EXTRACT_BOOLEAN(ownerp),
	    Get_Mode(psyncp),
	    Get_Mode (ksyncp));
  return S48_UNSPECIFIC;
}


s48_value scx_Ungrab_Key (s48_value Xdpy, s48_value Xwin, s48_value key,
			  s48_value mods, s48_value flag){
  int keycode = AnyKey;
  if (!S48_EXTRACT_BOOLEAN(flag))
    keycode = (int)s48_extract_integer(key);
  XUngrabKey (SCX_EXTRACT_DISPLAY(Xdpy),
	      keycode,
	      s48_extract_integer(mods),
	      SCX_EXTRACT_WINDOW(Xwin));
  return S48_UNSPECIFIC;
}


s48_value scx_Allow_Events (s48_value Xdpy, s48_value mode, s48_value time){
  XAllowEvents (SCX_EXTRACT_DISPLAY(Xdpy),
		s48_extract_integer(mode),
		SCX_EXTRACT_TIME(time));
    return S48_UNSPECIFIC;
}


s48_value scx_Grab_Server (s48_value Xdpy){
  XGrabServer(SCX_EXTRACT_DISPLAY(Xdpy));
  return S48_UNSPECIFIC;
}


s48_value scx_Ungrab_Server (s48_value Xdpy){
  XUngrabServer (SCX_EXTRACT_DISPLAY(Xdpy));
  return S48_UNSPECIFIC;
}


void scx_init_grab(void) {
  S48_EXPORT_FUNCTION(scx_Grab_Pointer);
  S48_EXPORT_FUNCTION(scx_Ungrab_Pointer);
  S48_EXPORT_FUNCTION(scx_Grab_Button);
  S48_EXPORT_FUNCTION(scx_Ungrab_Button);
  S48_EXPORT_FUNCTION(scx_Change_Active_Pointer_Grab);
  S48_EXPORT_FUNCTION(scx_Grab_Keyboard);
  S48_EXPORT_FUNCTION(scx_Ungrab_Keyboard);
  S48_EXPORT_FUNCTION(scx_Grab_Key);
  S48_EXPORT_FUNCTION(scx_Ungrab_Key);
  S48_EXPORT_FUNCTION(scx_Allow_Events);
  S48_EXPORT_FUNCTION(scx_Grab_Server);
  S48_EXPORT_FUNCTION(scx_Ungrab_Server);
}