2 #include <X11/cursorfont.h>
9 gint fail(const gchar *s) {
11 fprintf(stderr, "%s\n", s);
15 "Usage: obxprop [OPTIONS] [--] [PROPERTIES ...]\n\n"
17 " --help Display this help and exit\n"
18 " --display DISPLAY Connect to this X display\n"
19 " --id ID Show the properties for this window\n"
20 " --root Show the properties for the root window\n");
24 gint parse_hex(gchar *s) {
28 if (*s >= '0' && *s <='9')
30 else if (*s >= 'A' && *s <='F')
32 else if (*s >= 'a' && *s <='f')
43 Window find_client(Display *d, Window win)
47 Atom state = XInternAtom(d, "WM_STATE", True);
50 gulong ret_items, ret_bytesleft, *xdata;
52 XQueryTree(d, win, &r, &r, &children, &n);
53 for (i = 0; i < n; ++i) {
54 Window w = find_client(d, children[i]);
59 res = XGetWindowProperty(d, win, state, 0, 1,
60 False, state, &ret_type, &ret_format,
61 &ret_items, &ret_bytesleft,
62 (unsigned char**) &xdata);
64 if (res != Success || ret_type == None || ret_items < 1)
66 return win; // found it!
69 static gboolean get_all(Display *d, Window win, Atom prop,
70 Atom *type, gint *size,
71 guchar **data, guint *num)
76 gulong ret_items, bytes_left;
78 res = XGetWindowProperty(d, win, prop, 0l, G_MAXLONG,
79 FALSE, AnyPropertyType, type, size,
80 &ret_items, &bytes_left, &xdata);
85 *data = g_malloc(ret_items * (*size / 8));
86 for (i = 0; i < ret_items; ++i)
89 (*data)[i] = xdata[i];
92 ((guint16*)*data)[i] = ((gushort*)xdata)[i];
95 ((guint32*)*data)[i] = ((gulong*)xdata)[i];
98 g_assert_not_reached(); /* unhandled size */
108 gchar *append_string(gchar *before, gchar *after, gboolean quote)
111 const gchar *q = quote ? "\"" : "";
113 tmp = g_strdup_printf("%s, %s%s%s", before, q, after, q);
115 tmp = g_strdup_printf("%s%s%s", q, after, q);
120 gchar *append_int(gchar *before, guint after)
124 tmp = g_strdup_printf("%s, %u", before, after);
126 tmp = g_strdup_printf("%u", after);
131 gchar* read_strings(gchar *val, guint n, gboolean utf8)
133 GSList *strs = NULL, *it;
138 while (p < val + n) {
139 strs = g_slist_append(strs, g_strndup(p, n - (p - val)));
140 p += strlen(p) + 1; /* next string */
144 for (i = 0, it = strs; it; ++i, it = g_slist_next(it)) {
148 if (g_utf8_validate(it->data, -1, NULL))
149 data = g_strdup(it->data);
154 data = g_locale_to_utf8(it->data, -1, NULL, NULL, NULL);
156 ret = append_string(ret, data, TRUE);
162 strs = g_slist_delete_link(strs, strs);
167 gchar* read_atoms(Display *d, guchar *val, guint n)
173 for (i = 0; i < n; ++i)
174 ret = append_string(ret, XGetAtomName(d, ((guint32*)val)[i]), FALSE);
178 gchar* read_numbers(guchar *val, guint n, guint size)
184 for (i = 0; i < n; ++i)
187 ret = append_int(ret, ((guint8*)val)[i]);
190 ret = append_int(ret, ((guint16*)val)[i]);
193 ret = append_int(ret, ((guint32*)val)[i]);
196 g_assert_not_reached(); /* unhandled size */
202 gboolean read_prop(Display *d, Window w, Atom prop, const gchar **type, gchar **val)
210 if (get_all(d, w, prop, &ret_type, &size, &ret, &nret)) {
211 *type = XGetAtomName(d, ret_type);
213 if (strcmp(*type, "STRING") == 0)
214 *val = read_strings((gchar*)ret, nret, FALSE);
215 else if (strcmp(*type, "UTF8_STRING") == 0)
216 *val = read_strings((gchar*)ret, nret, TRUE);
217 else if (strcmp(*type, "ATOM") == 0) {
218 g_assert(size == 32);
219 *val = read_atoms(d, ret, nret);
222 *val = read_numbers(ret, nret, size);
230 void show_properties(Display *d, Window w, int argc, char **argv)
235 props = XListProperties(d, w, &n);
237 for (i = 0; i < n; ++i) {
241 name = XGetAtomName(d, props[i]);
243 if (read_prop(d, w, props[i], &type, &val)) {
249 for (i = 0; i < argc; i++)
250 if (!strcmp(name, argv[i])) {
256 g_print("%s(%s) = %s\n", name, type, val);
266 int main(int argc, char **argv)
269 Window id, userid = None;
272 gboolean root = FALSE;
274 for (i = 1; i < argc; ++i) {
275 if (!strcmp(argv[i], "--help")) {
278 else if (!strcmp(argv[i], "--root"))
280 else if (!strcmp(argv[i], "--id")) {
283 if (argv[i][0] == '0' && argv[i][1] == 'x') {
285 userid = parse_hex(argv[i]+2);
289 userid = atoi(argv[i]);
293 else if (!strcmp(argv[i], "--display")) {
298 else if (*argv[i] != '-')
300 else if (!strcmp(argv[i], "--")) {
308 d = XOpenDisplay(dname);
310 return fail("Unable to find an X display. "
311 "Ensure you have permission to connect to the display.");
315 userid = RootWindow(d, DefaultScreen(d));
317 if (userid == None) {
319 j = XGrabPointer(d, RootWindow(d, DefaultScreen(d)),
320 False, ButtonPressMask,
321 GrabModeAsync, GrabModeAsync,
322 None, XCreateFontCursor(d, XC_crosshair),
324 if (j != GrabSuccess)
325 return fail("Unable to grab the pointer device");
330 if (ev.type == ButtonPress) {
331 XUngrabPointer(d, CurrentTime);
332 userid = ev.xbutton.subwindow;
338 id = find_client(d, userid);
341 return fail("Unable to find window with the requested ID");
343 show_properties(d, id, argc - i, &argv[i]);