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/* Copyright ©2007 Kris Maglione <fbsdaemon@gmail.com>
* See LICENSE file for license details.
*/
#include <assert.h>
/* Misc */
static Atom
xatom(Display *display, char *name) {
/* Blech. I don't trust Xlib's cacheing.
MapEnt *e;
e = hash_get(&amap, name, 1);
if(e->val == nil)
e->val = (void*)XInternAtom(display, name, False);
return (Atom)e->val;
*/
return XInternAtom(display, name, False);
}
/* Properties */
#if 0
static void
delproperty(Display *display, Window w, char *prop) {
XDeleteProperty(display, w, xatom(display, prop));
}
#endif
static void
changeproperty(Display *display, Window w, char *prop, char *type, int width, uchar data[], int n) {
XChangeProperty(display, w, xatom(display, prop), xatom(display, type), width, PropModeReplace, data, n);
}
static void
changeprop_string(Display *display, Window w, char *prop, char *string) {
changeprop_char(display, w, prop, "UTF8_STRING", string, strlen(string));
}
static void
changeprop_char(Display *display, Window w, char *prop, char *type, char data[], int len) {
changeproperty(display, w, prop, type, 8, (uchar*)data, len);
}
#if 0
static void
changeprop_short(Display *display, Window w, char *prop, char *type, short data[], int len) {
changeproperty(display, w, prop, type, 16, (uchar*)data, len);
}
#endif
static void
changeprop_long(Display *display, Window w, char *prop, char *type, long data[], int len) {
changeproperty(display, w, prop, type, 32, (uchar*)data, len);
}
static void
changeprop_textlist(Display *display, Window w, char *prop, char *type, char *data[]) {
char **p, *s, *t;
int len, n;
len = 0;
for(p=data; *p; p++)
len += strlen(*p) + 1;
s = malloc(len);
if(s == nil)
return;
t = s;
for(p=data; *p; p++) {
n = strlen(*p) + 1;
memcpy(t, *p, n);
t += n;
}
changeprop_char(display, w, prop, type, s, len);
free(s);
}
#if 0
static void
freestringlist(char *list[]) {
XFreeStringList(list);
}
#endif
static ulong
getprop(Display *display, Window w, char *prop, char *type, Atom *actual, int *format, ulong offset, uchar **ret, ulong length) {
Atom typea;
ulong n, extra;
int status;
typea = (type ? xatom(display, type) : 0L);
status = XGetWindowProperty(display, w,
xatom(display, prop), offset, length, False /* delete */,
typea, actual, format, &n, &extra, ret);
if(status != Success) {
*ret = nil;
return 0;
}
if(n == 0) {
free(*ret);
*ret = nil;
}
return n;
}
#if 0
static ulong
getproperty(Display *display, Window w, char *prop, char *type, Atom *actual, ulong offset, uchar **ret, ulong length) {
int format;
return getprop(display, w, prop, type, actual, &format, offset, ret, length);
}
#endif
static ulong
getprop_long(Display *display, Window w, char *prop, char *type, ulong offset, long **ret, ulong length) {
Atom actual;
ulong n;
int format;
n = getprop(display, w, prop, type, &actual, &format, offset, (uchar**)ret, length);
if(n == 0 || format == 32 && xatom(display, type) == actual)
return n;
free(*ret);
*ret = 0;
return 0;
}
#ifdef notdef
static char**
strlistdup(char *list[], int n) {
char **p, *q;
int i, m;
for(i=0, m=0; i < n; i++)
m += strlen(list[i])+1;
p = malloc((n+1)*sizeof(char*) + m);
if(p == nil)
return nil;
q = (char*)&p[n+1];
for(i=0; i < n; i++) {
p[i] = q;
m = strlen(list[i])+1;
memcpy(q, list[i], m);
q += m;
}
p[n] = nil;
return p;
}
#endif
static char**
strlistdup(char *list[], int n) {
char **p, *q;
int i, m;
m = 0;
for(i=0; i < n; i++)
m += strlen(list[i]) + 1;
p = malloc((n+1) * sizeof(*p) + m);
q = (char*)&p[n+1];
for(i=0; i < n; i++) {
p[i] = q;
m = strlen(list[i]) + 1;
memcpy(q, list[i], m);
q += m;
}
p[n] = nil;
return p;
}
#if 0
static int
getprop_textlist(Display *display, Window w, char *name, char **ret[]) {
XTextProperty prop;
char **list;
int n;
n = 0;
XGetTextProperty(display, w, &prop, xatom(display, name));
if(prop.nitems > 0) {
if(Xutf8TextPropertyToTextList(display, &prop, &list, &n) == Success) {
*ret = strlistdup(list, n);
XFreeStringList(list);
}
XFree(prop.value);
}
return n;
}
#endif
#if 0
static char*
getprop_string(Display *display, Window w, char *name) {
char **list, *str;
int n;
str = nil;
n = getprop_textlist(display, w, name, &list);
if(n > 0)
str = strdup(*list);
freestringlist(list);
return str;
}
#endif
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