1 files changed, 55 insertions, 0 deletions
diff --git a/daemons/nowplayingd.c b/daemons/nowplayingd.c
new file mode 100644
index 0000000..fc785b3
--- /dev/null
+++ b/daemons/nowplayingd.c
@@ -0,0 +1,55 @@
+// nowplayingd — now playing daemon for bar
+//
+// Listens for track change notifications from Music.app and Spotify
+// via DistributedNotificationCenter and posts a Darwin notification.
+//
+// Compile:
+//   cc -o bar-nowplayingd daemons/nowplayingd.c -framework CoreFoundation
+
+#include <CoreFoundation/CoreFoundation.h>
+#include <notify.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+static volatile int keep_running = 1;
+
+static void handle_signal(int sig) {
+	(void)sig;
+	keep_running = 0;
+}
+
+static void track_changed(
+	CFNotificationCenterRef center, void *observer,
+	CFStringRef name, const void *object, CFDictionaryRef userInfo
+) {
+	(void)center; (void)observer; (void)name; (void)object; (void)userInfo;
+	notify_post("bar.touch.<block-name>");
+}
+
+int main(void) {
+	signal(SIGINT, handle_signal);
+	signal(SIGTERM, handle_signal);
+
+	CFNotificationCenterRef center = CFNotificationCenterGetDistributedCenter();
+
+	// Music.app
+	CFNotificationCenterAddObserver(
+		center, NULL, track_changed,
+		CFSTR("com.apple.Music.playerInfo"),
+		NULL, CFNotificationSuspensionBehaviorDeliverImmediately);
+
+	// Spotify
+	CFNotificationCenterAddObserver(
+		center, NULL, track_changed,
+		CFSTR("com.spotify.client.PlaybackStateChanged"),
+		NULL, CFNotificationSuspensionBehaviorDeliverImmediately);
+
+	while (keep_running) {
+		pause();
+	}
+
+	CFNotificationCenterRemoveEveryObserver(center, NULL);
+	return 0;
+}