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// 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;
}
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