sway-patched-tray-menu/sway/commands/bar/tray_output.c

#define _POSIX_C_SOURCE 200809L
#include <string.h>
#include "config.h"
#include "sway/commands.h"
#include "sway/config.h"
#include "list.h"
#include "log.h"

struct cmd_results *bar_cmd_tray_output(int argc, char **argv) {
#if HAVE_TRAY
	struct cmd_results *error = NULL;
	if ((error = checkarg(argc, "tray_output", EXPECTED_EQUAL_TO, 1))) {
		return error;
	}

	list_t *outputs = config->current_bar->tray_outputs;
	if (!outputs) {
		config->current_bar->tray_outputs = outputs = create_list();
	}

	if (strcmp(argv[0], "none") == 0) {
		sway_log(SWAY_DEBUG, "Hiding tray on bar: %s", config->current_bar->id);
		for (int i = 0; i < outputs->length; ++i) {
			free(outputs->items[i]);
		}
		outputs->length = 0;
	} else if (strcmp(argv[0], "*") == 0) {
		sway_log(SWAY_DEBUG, "Showing tray on all outputs for bar: %s",
				config->current_bar->id);
		while (outputs->length) {
			free(outputs->items[0]);
			list_del(outputs, 0);
		}
		return cmd_results_new(CMD_SUCCESS, NULL);
	} else {
		sway_log(SWAY_DEBUG, "Showing tray on output '%s' for bar: %s", argv[0],
				config->current_bar->id);
		if (outputs->length == 1 && strcmp(outputs->items[0], "none") == 0) {
			free(outputs->items[0]);
			list_del(outputs, 0);
		}
	}
	list_add(outputs, strdup(argv[0]));

	return cmd_results_new(CMD_SUCCESS, NULL);
#else
	return cmd_results_new(CMD_INVALID,
			"Sway has been compiled without tray support");
#endif
}