#include "xlib.h"

static s48_value Sym_Wm_Hints, Sym_Size_Hints;

static s48_value P_Iconify_Window (w, scr) s48_value w, scr; {
    Check_Type (w, T_Window);
    if (!XIconifyWindow (WINDOW(w)->dpy, WINDOW(w)->win,
	    Get_Screen_Number (WINDOW(w)->dpy, scr)))
	Primitive_Error ("cannot iconify window");
    return Void;
}

static s48_value P_Withdraw_Window (w, scr) s48_value w, scr; {
    Check_Type (w, T_Window);
    if (!XWithdrawWindow (WINDOW(w)->dpy, WINDOW(w)->win,
	    Get_Screen_Number (WINDOW(w)->dpy, scr)))
	Primitive_Error ("cannot withdraw window");
    return Void;
}

static s48_value P_Reconfigure_Wm_Window (w, scr, conf) s48_value w, scr, conf; {
    unsigned long mask;

    Check_Type (w, T_Window);
    mask = Vector_To_Record (conf, Conf_Size, Sym_Conf, Conf_Rec);
    if (!XReconfigureWMWindow (WINDOW(w)->dpy, WINDOW(w)->win,
	    Get_Screen_Number (WINDOW(w)->dpy, scr), mask, &WC))
	Primitive_Error ("cannot reconfigure window");
    return Void;
}

static s48_value P_Wm_Command (w) s48_value w; {
    int i, ac;
    char **av;
    s48_value s, ret, t;
    S48_DECLARE_GC_PROTECT(2);

    Check_Type (w, T_Window);
    Disable_Interrupts;
    if (!XGetCommand (WINDOW(w)->dpy, WINDOW(w)->win, &av, &ac))
	ac = 0;
    Enable_Interrupts;
    ret = t = P_Make_List (s48_enter_integer (ac), S48_NULL);
    S48_GC_PROTECT_2 (ret, t);
    for (i = 0; i < ac; i++, t = S48_CDR (t)) {
	s = Make_String (av[i], strlen (av[i]));
	S48_CAR (t) = s;
    }
    S48_GC_UNPROTECT;
    if (ac) XFreeStringList (av);
    return ret;
}

static String_List_To_Text_Property (x, ret) s48_value x; XTextProperty *ret; {
    register i, n;
    register char **s;
    s48_value t;
    Alloca_Begin;

    Check_List (x);
    n = Fast_Length (x);
    Alloca (s, char**, n * sizeof (char *));
    for (i = 0; i < n; i++, x = S48_CDR (x)) {
	t = S48_CAR (x);
	Get_Strsym_Stack (t, s[i]);
    }
    if (!XStringListToTextProperty (s, n, ret))
	Primitive_Error ("cannot create text property");
    Alloca_End;
}

static s48_value Text_Property_To_String_List (p) XTextProperty *p; {
    int n;
    register i;
    char **s;
    s48_value x, ret, t;
    S48_DECLARE_GC_PROTECT(2);

    if (!XTextPropertyToStringList (p, &s, &n))
	Primitive_Error ("cannot convert from text property");
    ret = t = P_Make_List (s48_enter_integer (n), S48_NULL);
    S48_GC_PROTECT_2 (ret, t);
    for (i = 0; i < n; i++, t = S48_CDR (t)) {
	x = Make_String (s[i], strlen (s[i]));
	S48_CAR (t) = x;
    }
    S48_GC_UNPROTECT;
    XFreeStringList (s);
    return ret;
}

static s48_value P_Get_Text_Property (w, a) s48_value w, a; {
    XTextProperty ret;

    Check_Type (w, T_Window);
    Check_Type (a, T_Atom);
    Disable_Interrupts;
    if (!XGetTextProperty (WINDOW(w)->dpy, WINDOW(w)->win, &ret,
	    ATOM(a)->atom)) {
	Enable_Interrupts;
	return S48_FALSE;
    }
    Enable_Interrupts;
    return Text_Property_To_String_List (&ret);
}

static s48_value P_Set_Text_Property (w, prop, a) s48_value w, prop, a; {
    XTextProperty p;

    Check_Type (w, T_Window);
    Check_Type (a, T_Atom);
    String_List_To_Text_Property (prop, &p);
    XSetTextProperty (WINDOW(w)->dpy, WINDOW(w)->win, &p, ATOM(a)->atom);
    XFree ((char *)p.value);
    return Void;
}

static s48_value P_Wm_Protocols (w) s48_value w; {
    Atom *p;
    int i, n;
    s48_value ret;
    S48_DECLARE_GC_PROTECT(1);

    Check_Type (w, T_Window);
    Disable_Interrupts;
    if (!XGetWMProtocols (WINDOW(w)->dpy, WINDOW(w)->win, &p, &n))
	Primitive_Error ("cannot get WM protocols");
    Enable_Interrupts;
    ret = s48_make_vector (n, S48_NULL);
    S48_GC_PROTECT_1 (ret);
    for (i = 0; i < n; i++) {
	s48_value a;
	
	a = Make_Atom (p[i]);
	S48_VECTOR_SET(ret, i, a;)
    }
    XFree ((char *)p);
    S48_GC_UNPROTECT;
    return ret;
}

static s48_value P_Set_Wm_Protocols (w, v) s48_value w, v; {
    Atom *p;
    int i, n;
    Alloca_Begin;

    Check_Type (w, T_Window);
    Check_Type (v, T_Vector);
    n = S48_VECTOR_LENGTH(v);
    Alloca (p, Atom*, n * sizeof (Atom));
    for (i = 0; i < n; i++) {
	s48_value a;
	a = S48_VECTOR_REF(v, i);
	Check_Type (a, T_Atom);
	p[i] = ATOM(a)->atom;
    }
    if (!XSetWMProtocols (WINDOW(w)->dpy, WINDOW(w)->win, p, n))
	Primitive_Error ("cannot set WM protocols");
    Alloca_End;
    return Void;
}

static s48_value P_Wm_Class (w) s48_value w; {
    s48_value ret, x;
    XClassHint c;
    S48_DECLARE_GC_PROTECT(1);

    Check_Type (w, T_Window);
    /*
     * In X11.2 XGetClassHint() returns either 0 or Success, which happens
     * to be defined as 0.  So until this bug is fixed, we must
     * explicitly check whether the XClassHint structure has been filled.
     */
    c.res_name = c.res_class = 0;
    Disable_Interrupts;
    (void)XGetClassHint (WINDOW(w)->dpy, WINDOW(w)->win, &c);
    Enable_Interrupts;
    ret = s48_cons (S48_FALSE, S48_FALSE);
    S48_GC_PROTECT_1 (ret);
    if (c.res_name) {
	x = Make_String (c.res_name, strlen (c.res_name));
	S48_CAR (ret) = x;
	XFree (c.res_name);
    }
    if (c.res_class) {
	x = Make_String (c.res_class, strlen (c.res_class));
	S48_CDR (ret) = x;
	XFree (c.res_class);
    }
    S48_GC_UNPROTECT;
    return ret;
}

static s48_value P_Set_Wm_Class (w, name, class) s48_value w, name, class; {
    XClassHint c;

    Check_Type (w, T_Window);
    c.res_name = Get_Strsym (name);
    c.res_class = Get_Strsym (class);
    XSetClassHint (WINDOW(w)->dpy, WINDOW(w)->win, &c);
    return Void;
}

static s48_value P_Set_Wm_Command (w, cmd) s48_value w, cmd; {
    register i, n;
    register char **argv;
    s48_value c;
    Alloca_Begin;

    Check_Type (w, T_Window);
    Check_List (cmd);
    n = Fast_Length (cmd);
    Alloca (argv, char**, n * sizeof (char *));
    for (i = 0; i < n; i++, cmd = S48_CDR (cmd)) {
	c = S48_CAR (cmd);
	Get_Strsym_Stack (c, argv[i]);
    }
    XSetCommand (WINDOW(w)->dpy, WINDOW(w)->win, argv, n);
    Alloca_End;
    return Void;
}

static s48_value P_Wm_Hints (w) s48_value w; {
    XWMHints *p;

    Check_Type (w, T_Window);
    Disable_Interrupts;
    p = XGetWMHints (WINDOW(w)->dpy, WINDOW(w)->win);
    Enable_Interrupts;
    if (p) {
	WMH = *p;
	XFree ((char *)p);
    } else {
	WMH.flags = 0;
    }
    return Record_To_Vector (Wm_Hints_Rec, Wm_Hints_Size, Sym_Wm_Hints,
	WINDOW(w)->dpy, (unsigned long)WMH.flags);
}

static s48_value P_Set_Wm_Hints (w, h) s48_value w, h; {
    unsigned long mask;

    Check_Type (w, T_Window);
    mask = Vector_To_Record (h, Wm_Hints_Size, Sym_Wm_Hints, Wm_Hints_Rec);
    WMH.flags = mask;
    XSetWMHints (WINDOW(w)->dpy, WINDOW(w)->win, &WMH);
    return Void;
}

static s48_value P_Size_Hints (w, a) s48_value w, a; {
    long supplied;

    Check_Type (w, T_Window);
    Check_Type (a, T_Atom);
    Disable_Interrupts;
    if (!XGetWMSizeHints (WINDOW(w)->dpy, WINDOW(w)->win, &SZH, &supplied,
	    ATOM(a)->atom))
	SZH.flags = 0;
    if (!(supplied & PBaseSize))
	SZH.flags &= ~PBaseSize;
    if (!(supplied & PWinGravity))
	SZH.flags &= ~PWinGravity;
    Enable_Interrupts;
    if ((SZH.flags & (PPosition|USPosition)) == (PPosition|USPosition))
	SZH.flags &= ~PPosition;
    if ((SZH.flags & (PSize|USSize)) == (PSize|USSize))
	SZH.flags &= ~PSize;
    return Record_To_Vector (Size_Hints_Rec, Size_Hints_Size, Sym_Size_Hints,
	WINDOW(w)->dpy, (unsigned long)SZH.flags);
}

static s48_value P_Set_Size_Hints (w, a, h) s48_value w, a, h; {
    unsigned long mask;

    Check_Type (w, T_Window);
    Check_Type (a, T_Atom);
    bzero ((char *)&SZH, sizeof (SZH));        /* Not portable? */
    mask = Vector_To_Record (h, Size_Hints_Size, Sym_Size_Hints,
	Size_Hints_Rec);
    if ((mask & (PPosition|USPosition)) == (PPosition|USPosition))
	mask &= ~PPosition;
    if ((mask & (PSize|USSize)) == (PSize|USSize))
	mask &= ~PSize;
    SZH.flags = mask;
    XSetWMSizeHints (WINDOW(w)->dpy, WINDOW(w)->win, &SZH, ATOM(a)->atom);
    return Void;
}

static s48_value P_Icon_Sizes (w) s48_value w; {
    XIconSize *p;
    int i, n;
    s48_value v;
    S48_DECLARE_GC_PROTECT(1);
    
    Check_Type (w, T_Window);
    Disable_Interrupts;
    if (!XGetIconSizes (WINDOW(w)->dpy, WINDOW(w)->win, &p, &n))
	n = 0;
    Enable_Interrupts;
    v = s48_make_vector (n, S48_NULL);
    S48_GC_PROTECT_1 (v);
    for (i = 0; i < n; i++) {
	register XIconSize *q = &p[i];
	s48_value t;

	t = P_Make_List (s48_enter_integer (6), S48_NULL);
	S48_VECTOR_SET(v, i, t;)
	S48_CAR (t) = s48_enter_integer (q->min_width); t = S48_CDR (t);
	S48_CAR (t) = s48_enter_integer (q->min_height); t = S48_CDR (t);
	S48_CAR (t) = s48_enter_integer (q->max_width); t = S48_CDR (t);
	S48_CAR (t) = s48_enter_integer (q->max_height); t = S48_CDR (t);
	S48_CAR (t) = s48_enter_integer (q->width_inc); t = S48_CDR (t);
	S48_CAR (t) = s48_enter_integer (q->height_inc);
    }
    S48_GC_UNPROTECT;
    if (n > 0)
	XFree ((char *)p);
    return v;
}

static s48_value P_Set_Icon_Sizes (w, v) s48_value w, v; {
    register i, n;
    XIconSize *p;
    Alloca_Begin;

    Check_Type (w, T_Window);
    Check_Type (v, T_Vector);
    n = S48_VECTOR_LENGTH(v);
    Alloca (p, XIconSize*, n * sizeof (XIconSize));
    for (i = 0; i < n; i++) {
	register XIconSize *q = &p[i];
	s48_value t;

	t = S48_VECTOR_REF(v, i);
	Check_List (t);
	if (Fast_Length (t) != 6)
	    Primitive_Error ("invalid argument: ~s", t);
	q->min_width = (int)s48_extract_integer (S48_CAR (t)); t = S48_CDR (t);
	q->min_height = (int)s48_extract_integer (S48_CAR (t)); t = S48_CDR (t);
	q->max_width = (int)s48_extract_integer (S48_CAR (t)); t = S48_CDR (t);
	q->max_height = (int)s48_extract_integer (S48_CAR (t)); t = S48_CDR (t);
	q->width_inc = (int)s48_extract_integer (S48_CAR (t)); t = S48_CDR (t);
	q->height_inc = (int)s48_extract_integer (S48_CAR (t));
    }
    XSetIconSizes (WINDOW(w)->dpy, WINDOW(w)->win, p, n);
    Alloca_End;
    return Void;
}

static s48_value P_Transient_For (w) s48_value w; {
    Window win;

    Disable_Interrupts;
    if (!XGetTransientForHint (WINDOW(w)->dpy, WINDOW(w)->win, &win))
	win = None;
    Enable_Interrupts;
    return Make_Window (0, WINDOW(w)->dpy, win);
}

static s48_value P_Set_Transient_For (w, pw) s48_value w, pw; {
    Check_Type (w, T_Window);
    XSetTransientForHint (WINDOW(w)->dpy, WINDOW(w)->win, Get_Window (pw));
    return Void;
}

elk_init_xlib_client () {
    Define_Symbol (&Sym_Wm_Hints, "wm-hints");
    Define_Symbol (&Sym_Size_Hints, "size-hints");
    Define_Primitive (P_Iconify_Window,   "iconify-window",    2, 2, EVAL);
    Define_Primitive (P_Withdraw_Window,  "withdraw-window",   2, 2, EVAL);
    Define_Primitive (P_Reconfigure_Wm_Window, 
			"xlib-reconfigure-wm-window",          3, 3, EVAL);
    Define_Primitive (P_Wm_Command,       "wm-command",        1, 1, EVAL);
    Define_Primitive (P_Get_Text_Property,"get-text-property", 2, 2, EVAL);
    Define_Primitive (P_Set_Text_Property,"set-text-property!",3, 3, EVAL);
    Define_Primitive (P_Wm_Protocols,     "wm-protocols",      1, 1, EVAL);
    Define_Primitive (P_Set_Wm_Protocols, "set-wm-protocols!", 2, 2, EVAL);
    Define_Primitive (P_Wm_Class,         "wm-class",          1, 1, EVAL);
    Define_Primitive (P_Set_Wm_Class,     "set-wm-class!",     3, 3, EVAL);
    Define_Primitive (P_Set_Wm_Command,   "set-wm-command!",   2, 2, EVAL);
    Define_Primitive (P_Wm_Hints,         "xlib-wm-hints",     1, 1, EVAL);
    Define_Primitive (P_Set_Wm_Hints,     "xlib-set-wm-hints!",2, 2, EVAL);
    Define_Primitive (P_Size_Hints,       "xlib-wm-size-hints",2, 2, EVAL);
    Define_Primitive (P_Set_Size_Hints,   
			"xlib-set-wm-size-hints!",             3, 3, EVAL);
    Define_Primitive (P_Icon_Sizes,       "icon-sizes",        1, 1, EVAL);
    Define_Primitive (P_Set_Icon_Sizes,   "set-icon-sizes!",   2, 2, EVAL);
    Define_Primitive (P_Transient_For,    "transient-for",     1, 1, EVAL);
    Define_Primitive (P_Set_Transient_For,"set-transient-for!",2, 2, EVAL);
}