From e0bf2d04832d4de76c784c32ef53c3434e244b96 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Desgualdo=20Pereira?= <desgua@gmail.com>
Date: Sun, 26 Oct 2025 08:19:28 -0300
Subject: [PATCH] Improved the -printinfo function, not it prints the title of
 the focused window. Also updated the help to inform user of the option

---
 dwlb.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/dwlb.c b/dwlb.c
index 1572cd7..3e19285 100644
--- a/dwlb.c
+++ b/dwlb.c
@@ -111,6 +111,7 @@
 	"	-set-top [OUTPUT]		draw bar at the top\n"	\
 	"	-set-bottom [OUTPUT]		draw bar at the bottom\n" \
 	"	-toggle-location [OUTPUT]	toggle bar location\n"	\
+	"	-printinfo [OUTPUT]		print the title of focused window\n"	\
 	"Other\n"							\
 	"	-v				get version information\n" \
 	"	-h				view this help text\n"
@@ -1751,6 +1752,27 @@ main(int argc, char **argv)
 			if (++i >= argc)
 				DIE("Option -printinfo requires an argument");
 			client_send_command(&sock_address, argv[i], "printinfo", NULL, target_socket);
+			int wait_for_file_ready(const char *path, int timeout_ms) {
+				struct stat st;
+				int waited = 0;
+				while (waited < timeout_ms) {
+					if (stat(path, &st) == 0 && st.st_size > 0)
+						return 0; // file exists and not empty
+					usleep(10); // sleep .01 ms
+					waited += 1;
+				}
+				return -1; // timeout
+			}
+			if (wait_for_file_ready("/tmp/dwlb_info", 8) == 0) { // wait up to 8ms
+				FILE *f = fopen("/tmp/dwlb_info", "r");
+				int c;
+				while ((c = fgetc(f)) != EOF)
+					putchar(c);
+				fclose(f);
+			} else {
+				fprintf(stderr, "Timed out waiting for info\n");
+			}
+			remove("/tmp/dwlb_info");
 			return 0;
 		} else if (!strcmp(argv[i], "-toggle-visibility")) {
 			if (++i >= argc)