2 #include <X11/cursorfont.h>
9 gint fail(const gchar *s) {
11 fprintf(stderr, "%s\n", s);
15 "Usage: obxprop [OPTIONS]\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");
23 gint parse_hex(gchar *s) {
27 if (*s >= '0' && *s <='9')
29 else if (*s >= 'A' && *s <='F')
31 else if (*s >= 'a' && *s <='f')
42 Window find_client(Display *d, Window win)
46 Atom state = XInternAtom(d, "WM_STATE", True);
49 gulong ret_items, ret_bytesleft, *xdata;
51 XQueryTree(d, win, &r, &r, &children, &n);
52 for (i = 0; i < n; ++i) {
53 Window w = find_client(d, children[i]);
58 res = XGetWindowProperty(d, win, state, 0, 1,
59 False, state, &ret_type, &ret_format,
60 &ret_items, &ret_bytesleft,
61 (unsigned char**) &xdata);
63 if (res != Success || ret_type == None || ret_items < 1)
65 return win; // found it!
68 static gboolean get_all(Display *d, Window win, Atom prop,
69 Atom *type, gint *size,
70 guchar **data, guint *num)
75 gulong ret_items, bytes_left;
77 res = XGetWindowProperty(d, win, prop, 0l, G_MAXLONG,
78 FALSE, AnyPropertyType, type, size,
79 &ret_items, &bytes_left, &xdata);
84 *data = g_malloc(ret_items * (*size / 8));
85 for (i = 0; i < ret_items; ++i)
88 (*data)[i] = xdata[i];
91 ((guint16*)*data)[i] = ((gushort*)xdata)[i];
94 ((guint32*)*data)[i] = ((gulong*)xdata)[i];
97 g_assert_not_reached(); /* unhandled size */
107 gchar *append_string(gchar *before, gchar *after, gboolean quote)
110 const gchar *q = quote ? "\"" : "";
112 tmp = g_strdup_printf("%s, %s%s%s", before, q, after, q);
114 tmp = g_strdup_printf("%s%s%s", q, after, q);
119 gchar *append_int(gchar *before, guint after)
123 tmp = g_strdup_printf("%s, %u", before, after);
125 tmp = g_strdup_printf("%u", after);
130 gchar* read_strings(gchar *val, guint n, gboolean utf8)
132 GSList *strs = NULL, *it;
137 while (p < val + n) {
138 strs = g_slist_append(strs, g_strndup(p, n - (p - val)));
139 p += strlen(p) + 1; /* next string */
143 for (i = 0, it = strs; it; ++i, it = g_slist_next(it)) {
147 if (g_utf8_validate(it->data, -1, NULL))
148 data = g_strdup(it->data);
153 data = g_locale_to_utf8(it->data, -1, NULL, NULL, NULL);
155 ret = append_string(ret, data, TRUE);
161 strs = g_slist_delete_link(strs, strs);
166 gchar* read_atoms(Display *d, guchar *val, guint n)
172 for (i = 0; i < n; ++i)
173 ret = append_string(ret, XGetAtomName(d, ((guint32*)val)[i]), FALSE);
177 gchar* read_numbers(guchar *val, guint n, guint size)
183 for (i = 0; i < n; ++i)
186 ret = append_int(ret, ((guint8*)val)[i]);
189 ret = append_int(ret, ((guint16*)val)[i]);
192 ret = append_int(ret, ((guint32*)val)[i]);
195 g_assert_not_reached(); /* unhandled size */
201 gboolean read_prop(Display *d, Window w, Atom prop, const gchar **type, gchar **val)
209 if (get_all(d, w, prop, &ret_type, &size, &ret, &nret)) {
210 *type = XGetAtomName(d, ret_type);
212 if (strcmp(*type, "STRING") == 0)
213 *val = read_strings((gchar*)ret, nret, FALSE);
214 else if (strcmp(*type, "UTF8_STRING") == 0)
215 *val = read_strings((gchar*)ret, nret, TRUE);
216 else if (strcmp(*type, "ATOM") == 0) {
217 g_assert(size == 32);
218 *val = read_atoms(d, ret, nret);
221 *val = read_numbers(ret, nret, size);
229 void show_properties(Display *d, Window w)
234 props = XListProperties(d, w, &n);
236 for (i = 0; i < n; ++i) {
240 name = XGetAtomName(d, props[i]);
242 if (read_prop(d, w, props[i], &type, &val)) {
243 g_print("%s(%s) = %s\n", name, type, val);
253 int main(int argc, char **argv)
256 Window id, userid = None;
260 for (i = 1; i < argc; ++i) {
261 if (!strcmp(argv[i], "--help")) {
264 else if (!strcmp(argv[i], "--id")) {
267 if (argv[i][0] == '0' && argv[i][1] == 'x') {
269 userid = parse_hex(argv[i]+2);
273 userid = atoi(argv[i]);
277 else if (!strcmp(argv[i], "--display")) {
284 d = XOpenDisplay(dname);
286 return fail("Unable to find an X display. "
287 "Ensure you have permission to connect to the display.");
290 if (userid == None) {
291 i = XGrabPointer(d, RootWindow(d, DefaultScreen(d)),
292 False, ButtonPressMask,
293 GrabModeAsync, GrabModeAsync,
294 None, XCreateFontCursor(d, XC_crosshair),
296 if (i != GrabSuccess)
297 return fail("Unable to grab the pointer device");
302 if (ev.type == ButtonPress) {
303 XUngrabPointer(d, CurrentTime);
304 userid = ev.xbutton.subwindow;
310 id = find_client(d, userid);
313 return fail("Unable to find window with the requested ID");
315 show_properties(d, id);