Add microphone status indicator

1 files changed, 108 insertions, 0 deletions

diff --git a/audio.c b/audio.c
new file mode 100644
index 0000000..4aa8d50
--- /dev/null
+++ b/audio.c
@@ -0,0 +1,108 @@
+#include <pulse/pulseaudio.h>
+#include <string.h>
+#include "glitch.h"
+
+extern WindowManager wm;
+
+static void trigger_redraw(void) {
+	if (!wm.dpy || wm.root == None) return;
+
+	XLockDisplay(wm.dpy);
+	XEvent ev = {0};
+	ev.type = Expose;
+	ev.xexpose.window = wm.root;
+	ev.xexpose.x = 0;
+	ev.xexpose.y = 0;
+	ev.xexpose.width = 1;
+	ev.xexpose.height = 1;
+	ev.xexpose.count = 0;
+
+	XSendEvent(wm.dpy, wm.root, False, ExposureMask, &ev);
+	XFlush(wm.dpy);
+	XUnlockDisplay(wm.dpy);
+}
+
+static void source_info_callback(pa_context *c, const pa_source_info *i, int eol, void *userdata) {
+	(void)c;
+	(void)userdata;
+	if (eol > 0 || !i) return;
+
+	// Check if this is the default source or matches our criteria
+	// For simplicity, we can just track the mute state of the default source
+	// Pulseaudio usually calls this for the specific source we requested
+	int muted = i->mute;
+	if (wm.mic_muted != muted) {
+		wm.mic_muted = muted;
+		trigger_redraw();
+	}
+}
+
+static void update_mic_state(pa_context *c) {
+	pa_operation *o = pa_context_get_source_info_by_name(c, "@DEFAULT_SOURCE@", source_info_callback, NULL);
+	if (o) pa_operation_unref(o);
+}
+
+static void subscribe_callback(pa_context *c, pa_subscription_event_type_t t, uint32_t idx, void *userdata) {
+	(void)idx;
+	(void)userdata;
+	if ((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SOURCE) {
+		update_mic_state(c);
+	}
+}
+
+static void context_state_callback(pa_context *c, void *userdata) {
+	(void)userdata;
+	switch (pa_context_get_state(c)) {
+		case PA_CONTEXT_READY:
+			pa_context_set_subscribe_callback(c, subscribe_callback, NULL);
+			pa_context_subscribe(c, PA_SUBSCRIPTION_MASK_SOURCE, NULL, NULL);
+			update_mic_state(c);
+			break;
+		case PA_CONTEXT_FAILED:
+		case PA_CONTEXT_TERMINATED:
+			break;
+		case PA_CONTEXT_UNCONNECTED:
+		case PA_CONTEXT_CONNECTING:
+		case PA_CONTEXT_AUTHORIZING:
+		case PA_CONTEXT_SETTING_NAME:
+			break;
+	}
+}
+
+void init_audio(void) {
+	wm.pa_mainloop = pa_threaded_mainloop_new();
+	if (!wm.pa_mainloop) return;
+
+	wm.pa_ctx = pa_context_new(pa_threaded_mainloop_get_api(wm.pa_mainloop), "glitch-wm");
+	if (!wm.pa_ctx) return;
+
+	pa_context_set_state_callback(wm.pa_ctx, context_state_callback, NULL);
+
+	if (pa_context_connect(wm.pa_ctx, NULL, PA_CONTEXT_NOFLAGS, NULL) < 0) {
+		return;
+	}
+
+	if (pa_threaded_mainloop_start(wm.pa_mainloop) < 0) {
+		return;
+	}
+}
+
+void deinit_audio(void) {
+	if (wm.pa_mainloop) pa_threaded_mainloop_stop(wm.pa_mainloop);
+	if (wm.pa_ctx) pa_context_unref(wm.pa_ctx);
+	if (wm.pa_mainloop) pa_threaded_mainloop_free(wm.pa_mainloop);
+}
+
+void toggle_mic_mute(const Arg *arg) {
+	(void)arg;
+	if (!wm.pa_ctx || pa_context_get_state(wm.pa_ctx) != PA_CONTEXT_READY) return;
+
+	// Instant UI feedback
+	wm.mic_muted = !wm.mic_muted;
+	trigger_redraw();
+
+	pa_threaded_mainloop_lock(wm.pa_mainloop);
+	pa_operation *o = pa_context_set_source_mute_by_name(wm.pa_ctx, "@DEFAULT_SOURCE@", wm.mic_muted, NULL, NULL);
+	if (o) pa_operation_unref(o);
+	pa_threaded_mainloop_unlock(wm.pa_mainloop);
+}