swaybar: do not create tray if hidden

include/swaybar/config.h

@@ -69,6 +69,7 @@ struct swaybar_config {
 #if HAVE_TRAY
 	char *icon_theme;
 	char *tray_bindings[10]; // mouse buttons 0-9
+	bool tray_hidden;
 	list_t *tray_outputs; // char *
 	int tray_padding;
 #endif

sway/commands/bar/tray_output.c

@@ -31,8 +31,8 @@ struct cmd_results *bar_cmd_tray_output(int argc, char **argv) {
 	} else {
 		wlr_log(WLR_DEBUG, "Showing tray on output '%s' for bar: %s", argv[0],
 				config->current_bar->id);
-		list_add(outputs, strdup(argv[0]));
 	}
+	list_add(outputs, strdup(argv[0]));
 
 	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
 #else

swaybar/bar.c

@@ -371,7 +371,9 @@ bool bar_setup(struct swaybar *bar, const char *socket_path) {
 	assert(pointer->cursor_surface);
 
 #if HAVE_TRAY
-	bar->tray = create_tray(bar);
+	if (!bar->config->tray_hidden) {
+		bar->tray = create_tray(bar);
+	}
 #endif
 
 	if (bar->config->workspace_buttons) {

swaybar/ipc.c

@@ -293,6 +293,7 @@ static bool ipc_parse_config(
 			json_object *o = json_object_array_get_idx(tray_outputs, i);
 			list_add(config->tray_outputs, strdup(json_object_get_string(o)));
 		}
+		config->tray_hidden = strcmp(config->tray_outputs->items[0], "none") == 0;
 	}
 
 	if ((json_object_object_get_ex(bar_config, "tray_padding", &tray_padding))) {