#include <clutter/clutter.h>
#include <glib.h>


static gboolean toggle_state = TRUE;
static int counter = 0;

static ClutterActor *stage = NULL; 
static GMainLoop *loop = NULL;

gboolean
swap_color(gpointer data)
{
  if(toggle_state)
    clutter_actor_set_background_color(stage,
                                       clutter_color_get_static(CLUTTER_COLOR_BLUE));
  else
    clutter_actor_set_background_color(stage,
                                       clutter_color_get_static(CLUTTER_COLOR_YELLOW));

  toggle_state = !toggle_state;
  counter++;

  if(counter > 20)
    g_main_loop_quit(loop);

  return TRUE;
}

int
main (int argc, char **argv) {

 // clutter_set_windowing_backend("x11");
  clutter_set_windowing_backend("eglnative");

  if(!clutter_init(&argc, &argv))
    return 1;

  stage = (ClutterActor*)clutter_stage_new();

  clutter_actor_set_background_color(stage,
                                     clutter_color_get_static(CLUTTER_COLOR_WHITE));

  clutter_actor_show(stage);

  g_timeout_add_seconds(1, swap_color, NULL);

  loop = g_main_loop_new (NULL, FALSE);
  g_main_loop_run(loop);

  return 0;
}