enlightenment-module-mpdule/src/e_mod_main.c

#include <e.h>
#include "e_mod_main.h"
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
#  include <sys/time.h>
# else
#  include <time.h>
# endif
#endif
#include <libmpd/libmpdclient.h>

#define MAX_SONG_LENGTH 255

/* Func Proto Requirements for Gadcon */
static E_Gadcon_Client *_gc_init (E_Gadcon * gc, const char *name,
				  const char *id, const char *style);
static void _gc_shutdown (E_Gadcon_Client * gcc);
static void _gc_orient (E_Gadcon_Client * gcc, E_Gadcon_Orient orient);
static char *_gc_label (E_Gadcon_Client_Class *client_class);
static Evas_Object *_gc_icon (E_Gadcon_Client_Class *client_class, Evas * evas);
static const char *_gc_id_new (E_Gadcon_Client_Class *client_class);

/* Module Protos */
static void _mpdule_cb_mouse_down (void *data, Evas * e, Evas_Object * obj,
				   void *event_info);
static void _mpdule_cb_mouse_in (void *data, Evas * e, Evas_Object * obj,
				 void *event_info);
static void _mpdule_cb_mouse_out (void *data, Evas * e, Evas_Object * obj,
				  void *event_info);
static void _mpdule_menu_cb_configure (void *data, E_Menu * m,
				       E_Menu_Item * mi);
static void _mpdule_menu_cb_post (void *data, E_Menu * m);
static void _mpdule_cb_play (void *data, Evas_Object * obj,
			     const char *emission, const char *source);
static void _mpdule_cb_stop (void *data, Evas_Object * obj,
			     const char *emission, const char *source);
static void _mpdule_cb_pause (void *data, Evas_Object * obj,
			      const char *emission, const char *source);
static void _mpdule_cb_next (void *data, Evas_Object * obj,
			     const char *emission, const char *source);
static void _mpdule_cb_previous (void *data, Evas_Object * obj,
				 const char *emission, const char *source);
static Config_Item *_mpdule_config_item_get (const char *id);

static E_Config_DD *conf_edd = NULL;
static E_Config_DD *conf_item_edd = NULL;

Config *mpdule_config = NULL;

/* Define the class and gadcon functions this module provides */
static const E_Gadcon_Client_Class _gc_class = {
  GADCON_CLIENT_CLASS_VERSION,
  "mpdule", {_gc_init, _gc_shutdown, _gc_orient, _gc_label, _gc_icon,
	     _gc_id_new, NULL, e_gadcon_site_is_not_toolbar},
  E_GADCON_CLIENT_STYLE_PLAIN
};

typedef struct _Instance Instance;
struct _Instance
{
  E_Gadcon_Client *gcc;
  Evas_Object *mpdule;
  Evas_Object *o_popup;
  mpd_Connection *mpd;
  Ecore_Timer *update_timer;
  Config_Item *ci;
  E_Gadcon_Popup *popup;
};


static void _mpdule_connect (Instance * inst);
static void _mpdule_disconnect (Instance * inst);
static void _mpdule_update_song (Instance * inst);
static Eina_Bool  _mpdule_update_song_cb (void *data);
static void _mpdule_popup_destroy (Instance * inst);
static void _mpdule_popup_create (Instance * inst, const char *dir);

static E_Gadcon_Client *
_gc_init (E_Gadcon * gc, const char *name, const char *id, const char *style)
{
  Evas_Object *o;
  E_Gadcon_Client *gcc;
  Evas *evas;
  Instance *inst;
  char buf[4096];

  inst = E_NEW (Instance, 1);

  inst->ci = _mpdule_config_item_get (id);
  if (!inst->ci->id)
    inst->ci->id = eina_stringshare_add (id);

  o = edje_object_add (gc->evas);
  snprintf (buf, sizeof (buf), "%s/mpdule.edj",
	    e_module_dir_get (mpdule_config->module));
  if (!e_theme_edje_object_set
      (o, "base/theme/modules/mpdule", "modules/mpdule/main"))
    edje_object_file_set (o, buf, "modules/mpdule/main");
  evas_object_show (o);

  gcc = e_gadcon_client_new (gc, name, id, style, o);
  gcc->data = inst;
  inst->gcc = gcc;
  inst->mpdule = o;

  _mpdule_popup_create(inst, buf);

  evas_object_event_callback_add (o, EVAS_CALLBACK_MOUSE_DOWN,
				  _mpdule_cb_mouse_down, inst);
  evas_object_event_callback_add (inst->mpdule, EVAS_CALLBACK_MOUSE_IN,
				  _mpdule_cb_mouse_in, inst);
  evas_object_event_callback_add (inst->mpdule, EVAS_CALLBACK_MOUSE_OUT,
				  _mpdule_cb_mouse_out, inst);
  edje_object_signal_callback_add (o, "mpdule,play", "", _mpdule_cb_play,
				   inst);
  edje_object_signal_callback_add (o, "mpdule,stop", "", _mpdule_cb_stop,
				   inst);
  edje_object_signal_callback_add (o, "mpdule,pause", "", _mpdule_cb_pause,
				   inst);
  edje_object_signal_callback_add (o, "mpdule,next", "", _mpdule_cb_next,
				   inst);
  edje_object_signal_callback_add (o, "mpdule,previous", "",
				   _mpdule_cb_previous, inst);
  _mpdule_connect (inst);
  _mpdule_update_song (inst);
  inst->update_timer = ecore_timer_add (inst->ci->poll_time,
					_mpdule_update_song_cb, inst);

  mpdule_config->instances =
    eina_list_append (mpdule_config->instances, inst);
  return gcc;
}

static void
_gc_shutdown (E_Gadcon_Client * gcc)
{
  Instance *inst;

  inst = gcc->data;
  if (inst->update_timer)
    ecore_timer_del (inst->update_timer);
  _mpdule_disconnect (inst);
  mpdule_config->instances =
    eina_list_remove (mpdule_config->instances, inst);

  evas_object_event_callback_del (inst->mpdule, EVAS_CALLBACK_MOUSE_DOWN,
				  _mpdule_cb_mouse_down);
  evas_object_event_callback_del (inst->mpdule, EVAS_CALLBACK_MOUSE_IN,
				  _mpdule_cb_mouse_in);
  evas_object_event_callback_del (inst->mpdule, EVAS_CALLBACK_MOUSE_OUT,
				  _mpdule_cb_mouse_out);
  _mpdule_popup_destroy (inst);
  evas_object_del (inst->mpdule);
  free (inst);
  inst = NULL;
}

static void
_gc_orient (E_Gadcon_Client * gcc, E_Gadcon_Orient orient)
{
  Instance *inst;
  Evas_Coord mw, mh;

  inst = gcc->data;
  edje_object_size_min_calc (inst->mpdule, &mw, &mh);
  e_gadcon_client_min_size_set (gcc, mw, mh);
}

static char *
_gc_label (E_Gadcon_Client_Class *client_class)
{
  return D_ ("MPDule");
}

static Evas_Object *
_gc_icon (E_Gadcon_Client_Class *client_class, Evas * evas)
{
  Evas_Object *o;
  char buf[4096];

  o = edje_object_add (evas);
  snprintf (buf, sizeof (buf), "%s/e-module-mpdule.edj",
	    e_module_dir_get (mpdule_config->module));
  edje_object_file_set (o, buf, "icon");
  return o;
}

static const char *
_gc_id_new (E_Gadcon_Client_Class *client_class)
{
  Config_Item *ci;

  ci = _mpdule_config_item_get (NULL);
  return ci->id;
}

static void
_mpdule_cb_mouse_down (void *data, Evas * e, Evas_Object * obj,
		       void *event_info)
{
  Instance *inst;
  Evas_Event_Mouse_Down *ev;

  inst = data;
  ev = event_info;
  if ((ev->button == 3) && (!mpdule_config->menu))
    {
      E_Menu *mn;
      E_Menu_Item *mi;
      int x, y, w, h;

      mn = e_menu_new ();
      e_menu_post_deactivate_callback_set (mn, _mpdule_menu_cb_post, inst);
      mpdule_config->menu = mn;

      mi = e_menu_item_new (mn);
      e_menu_item_label_set (mi, D_ ("Configuration"));
      e_util_menu_item_theme_icon_set(mi, "preferences-system");
      e_menu_item_callback_set (mi, _mpdule_menu_cb_configure, inst);

      mi = e_menu_item_new (mn);
      e_menu_item_separator_set (mi, 1);

      e_gadcon_client_util_menu_items_append (inst->gcc, mn, 0);
      e_gadcon_canvas_zone_geometry_get (inst->gcc->gadcon, &x, &y, &w, &h);
      e_menu_activate_mouse (mn,
			     e_util_zone_current_get (e_manager_current_get
						      ()), x + ev->output.x,
			     y + ev->output.y, 1, 1,
			     E_MENU_POP_DIRECTION_DOWN, ev->timestamp);
      evas_event_feed_mouse_up (inst->gcc->gadcon->evas, ev->button,
				EVAS_BUTTON_NONE, ev->timestamp, NULL);
    }
  else if (ev->button == 1)
    {
      //e_gadcon_popup_toggle_pinned(inst->popup);
    }
}


static void
_mpdule_cb_mouse_in (void *data, Evas * e, Evas_Object * obj,
		     void *event_info)
{
  Instance *inst;
  E_Gadcon_Popup *popup;

  if ((!(inst = data)) || (!inst->ci->show_popup))
    return;
  popup = inst->popup;
  e_gadcon_popup_show (inst->popup);
}

static void
_mpdule_cb_mouse_out (void *data, Evas * e, Evas_Object * obj,
		      void *event_info)
{
  Instance *inst;
  E_Gadcon_Popup *popup;

  if ((!(inst = data)) || ((!inst->ci->show_popup) && (inst->popup)))
    return;
  popup = inst->popup;
  e_gadcon_popup_hide (inst->popup);
}

static void
_mpdule_menu_cb_post (void *data, E_Menu * m)
{
  if (!mpdule_config->menu)
    return;
  e_object_del (E_OBJECT (mpdule_config->menu));
  mpdule_config->menu = NULL;
}

static void
_mpdule_menu_cb_configure (void *data, E_Menu * m, E_Menu_Item * mi)
{
  Instance *inst;

  inst = data;
  _config_mpdule_module (inst->ci);
}

void
_mpdule_config_updated (Config_Item * ci)
{
  Eina_List *l;

  if (!mpdule_config)
    return;
  for (l = mpdule_config->instances; l; l = l->next)
    {
      Instance *inst;

      inst = l->data;
      if (inst->ci != ci)
	continue;
      _mpdule_disconnect (inst);
      _mpdule_connect (inst);
      _mpdule_update_song (inst);
      if (inst->update_timer)
	ecore_timer_interval_set (inst->update_timer, ci->poll_time);
      else
	inst->update_timer =
	  ecore_timer_add (ci->poll_time, _mpdule_update_song_cb,
			   inst);
      if (inst->ci->show_popup)
	{
	   if (!inst->popup)
	     {
		_mpdule_popup_create(inst, NULL);
	     }
	}
      else
	{
	   if (inst->popup)
	     {
		_mpdule_popup_destroy(inst);
	     }
	   if (inst->o_popup)
	     {
		evas_object_del(inst->o_popup);
	     }
	}
      break;
    }
}

static void
_mpdule_cb_play (void *data, Evas_Object * obj, const char *emission,
		 const char *source)
{
  Instance *inst;
  mpd_Connection *mpd;

  inst = data;
  mpd = inst->mpd;
  mpd_sendPlayCommand (mpd, -1);
}

static void
_mpdule_cb_previous (void *data, Evas_Object * obj, const char *emission,
		     const char *source)
{
  Instance *inst;
  mpd_Connection *mpd;

  inst = data;
  mpd = inst->mpd;
  mpd_sendPrevCommand (mpd);
}

static void
_mpdule_cb_next (void *data, Evas_Object * obj, const char *emission,
		 const char *source)
{
  Instance *inst;
  mpd_Connection *mpd;

  inst = data;
  mpd = inst->mpd;
  mpd_sendNextCommand (mpd);
}

static void
_mpdule_cb_stop (void *data, Evas_Object * obj, const char *emission,
		 const char *source)
{
  Instance *inst;
  mpd_Connection *mpd;

  inst = data;
  mpd = inst->mpd;
  mpd_sendStopCommand (mpd);
}

static void
_mpdule_cb_pause (void *data, Evas_Object * obj, const char *emission,
		  const char *source)
{
  Instance *inst;
  mpd_Connection *mpd;

  inst = data;
  mpd = inst->mpd;
  mpd_sendPauseCommand (mpd, 1);
}

static Config_Item *
_mpdule_config_item_get (const char *id)
{
  Eina_List *l;
  Config_Item *ci;
  char buf[128];


  if (!id)
    {
      int num = 0;

      /* Create id */
      if (mpdule_config->items)
	{
	  const char *p;
	  ci = eina_list_last (mpdule_config->items)->data;
	  p = strrchr (ci->id, '.');
	  if (p)
	    num = atoi (p + 1) + 1;
	}
      snprintf (buf, sizeof (buf), "%s.%d", _gc_class.name, num);
      id = buf;
    }
  else
    {
      for (l = mpdule_config->items; l; l = l->next)
	{
	  ci = l->data;
	  if (!ci->id)
	    continue;
	  if (!strcmp (ci->id, id))
	    return ci;
	}
    }

  ci = E_NEW (Config_Item, 1);
  ci->id = eina_stringshare_add (id);
  ci->poll_time = 1.0;
  ci->hostname = eina_stringshare_add ("localhost");
  ci->port = 6600;
  ci->show_popup = 1;

  mpdule_config->items = eina_list_append (mpdule_config->items, ci);
  return ci;
}

EAPI E_Module_Api e_modapi = {
  E_MODULE_API_VERSION,
  "MPDule"
};

static void
_mpdule_connect (Instance * inst)
{
  mpd_Connection *mpd;
  Config_Item *ci;

  ci = inst->ci;
  mpd = mpd_newConnection (ci->hostname, ci->port, 3.0);
  inst->mpd = mpd;
}

static void
_mpdule_disconnect (Instance * inst)
{
  mpd_Connection *mpd;

  if (inst->mpd)
    {
      mpd = inst->mpd;
      mpd_closeConnection (mpd);
      inst->mpd = NULL;
    }
}

static Eina_Bool
_mpdule_update_song_cb (void *data)
{
  Instance *inst;

  inst = data;
  _mpdule_update_song (inst);
  return EINA_TRUE;
}

static void
_mpdule_update_song (Instance * inst)
{
  mpd_Connection *mpd;
  Evas_Object *mpdule;
  Evas_Object *o_popup;

  if (!inst->mpd)
    return;
  mpd = inst->mpd;
  mpdule = inst->mpdule;
  o_popup = inst->o_popup;
  mpd_sendStatusCommand (mpd);
  if (mpd->error == 0)
    {
      mpd_Status *status = mpd_getStatus (mpd);

      if (status)
	{
	  if (status->state == MPD_STATUS_STATE_UNKNOWN)
	    {
	      edje_object_part_text_set (mpdule, "mpdule.status",
					 D_ ("Unknown"));
	      edje_object_part_text_set (o_popup, "mpdule.status",
					 D_ ("Unknown"));
	    }
	  else if (status->state == MPD_STATUS_STATE_STOP)
	    {
	      edje_object_part_text_set (mpdule, "mpdule.status",
					 D_ ("Stopped"));
	      edje_object_part_text_set (o_popup, "mpdule.status",
					 D_ ("Stopped"));
	    }
	  else if (status->state == MPD_STATUS_STATE_PLAY)
	    {
	      edje_object_part_text_set (mpdule, "mpdule.status",
					 D_ ("Playing"));
	      edje_object_part_text_set (o_popup, "mpdule.status",
					 D_ ("Playing"));
	    }
	  else if (status->state == MPD_STATUS_STATE_PAUSE)
	    {
	      edje_object_part_text_set (mpdule, "mpdule.status",
					 D_ ("Paused"));
	      edje_object_part_text_set (o_popup, "mpdule.status",
					 D_ ("Paused"));
	    }

	  if (status->state > MPD_STATUS_STATE_STOP)
	    {
	      mpd_sendCurrentSongCommand (mpd);
	      mpd_InfoEntity *entity = NULL;

	      while ((entity = mpd_getNextInfoEntity (mpd)))
		{
		  if (entity->type == MPD_INFO_ENTITY_TYPE_SONG &&
		      entity->info.song->id == status->songid)
		    {
		      mpd_Song *song = entity->info.song;

		      if (song->artist)
			{
			  edje_object_part_text_set (mpdule, "mpdule.artist",
						     song->artist);
			  edje_object_part_text_set (o_popup, "mpdule.artist",
						     song->artist);
			}
		      else
			{
			  edje_object_part_text_set (mpdule, "mpdule.artist",
						     "");
			  edje_object_part_text_set (o_popup, "mpdule.artist",
						     "");
			}
		      if (song->title)
			{
			  edje_object_part_text_set (mpdule, "mpdule.title",
						     song->title);
			  edje_object_part_text_set (o_popup, "mpdule.title",
						     song->title);
			}
		      else
			{
			  edje_object_part_text_set (mpdule, "mpdule.title",
						     "");
			  edje_object_part_text_set (o_popup, "mpdule.title",
						     "");
			}
		      if (song->album)
			{
			  edje_object_part_text_set (mpdule, "mpdule.album",
						     song->album);
			  edje_object_part_text_set (o_popup, "mpdule.album",
						     song->album);
			}
		      else
			{
			  edje_object_part_text_set (mpdule, "mpdule.album",
						     "");
			  edje_object_part_text_set (o_popup, "mpdule.album",
						     "");
			}
		      if (song->track)
			{
			  edje_object_part_text_set (mpdule, "mpdule.track",
						     song->track);
			  edje_object_part_text_set (o_popup, "mpdule.track",
						     song->track);
			}
		      else
			{
			  edje_object_part_text_set (mpdule, "mpdule.track",
						     "");
			  edje_object_part_text_set (o_popup, "mpdule.track",
						     "");
			}
		      if (song->date)
			{
			  edje_object_part_text_set (mpdule, "mpdule.date",
						     song->date);
			  edje_object_part_text_set (o_popup, "mpdule.date",
						     song->date);
			}
		      else
			{
			  edje_object_part_text_set (mpdule, "mpdule.date",
						     "");
			  edje_object_part_text_set (o_popup, "mpdule.date",
						     "");
			}
		      if (song->genre)
			{
			  edje_object_part_text_set (mpdule, "mpdule.genre",
						     song->genre);
			  edje_object_part_text_set (o_popup, "mpdule.genre",
						     song->genre);
			}
		      else
			{
			  edje_object_part_text_set (mpdule, "mpdule.genre",
						     "");
			  edje_object_part_text_set (o_popup, "mpdule.genre",
						     "");
			}
		      if (song->composer)
			{
			  edje_object_part_text_set (mpdule,
						     "mpdule.composer",
						     song->composer);
			  edje_object_part_text_set (o_popup,
						     "mpdule.composer",
						     song->composer);
			}
		      else
			{
			  edje_object_part_text_set (mpdule,
						     "mpdule.composer", "");
			  edje_object_part_text_set (o_popup,
						     "mpdule.composer", "");
			}
		      if (song->time)
			{
			  //char * songtime;
			  //sprintf(songtime, "%i", song->time);
			  //edje_object_part_text_set (mpdule, "mpdule.time", songtime);
			  //edje_object_part_text_set (o_popup, "mpdule.time", songtime);
			}
		      else
			{
			  edje_object_part_text_set (mpdule, "mpdule.time",
						     "");
			  edje_object_part_text_set (o_popup, "mpdule.time",
						     "");
			}
		      if (song->file)
			{
			  edje_object_part_text_set (mpdule, "mpdule.file",
						     song->file);
			  edje_object_part_text_set (o_popup, "mpdule.file",
						     song->file);
			}
		      else
			{
			  edje_object_part_text_set (mpdule, "mpdule.file",
						     "");
			  edje_object_part_text_set (o_popup, "mpdule.file",
						     "");
			}
		    }

		  mpd_freeInfoEntity (entity);
		}
	    }

	  mpd_freeStatus (status);
	}
    }
  else
    {
      _mpdule_disconnect (inst);
      _mpdule_connect (inst);
    }
}

EAPI void *
e_modapi_init (E_Module * m)
{
  char buf[4096];

  snprintf (buf, sizeof (buf), "%s/locale", e_module_dir_get (m));
  bindtextdomain (PACKAGE, buf);
  bind_textdomain_codeset (PACKAGE, "UTF-8");

  conf_item_edd = E_CONFIG_DD_NEW ("MPDule_Config_Item", Config_Item);
#undef T
#undef D
#define T Config_Item
#define D conf_item_edd
  E_CONFIG_VAL (D, T, id, STR);
  E_CONFIG_VAL (D, T, poll_time, DOUBLE);
  E_CONFIG_VAL (D, T, hostname, STR);
  E_CONFIG_VAL (D, T, port, INT);
  E_CONFIG_VAL (D, T, show_popup, UCHAR);

  conf_edd = E_CONFIG_DD_NEW ("MPDule_Config", Config);
#undef T
#undef D
#define T Config
#define D conf_edd
  E_CONFIG_LIST (D, T, items, conf_item_edd);

  mpdule_config = e_config_domain_load ("module.mpdule", conf_edd);
  if (!mpdule_config)
    {
      Config_Item *ci;

      mpdule_config = E_NEW (Config, 1);

      ci = E_NEW (Config_Item, 1);
      ci->id = eina_stringshare_add ("0");
      ci->poll_time = 1.0;
      ci->hostname = eina_stringshare_add ("localhost");
      ci->port = 6600;
      ci->show_popup = 1;

      mpdule_config->items = eina_list_append (mpdule_config->items, ci);
    }
  mpdule_config->module = m;

  e_gadcon_provider_register (&_gc_class);
  return m;
}

EAPI int
e_modapi_shutdown (E_Module * m)
{
  mpdule_config->module = NULL;
  e_gadcon_provider_unregister (&_gc_class);

  if (mpdule_config->config_dialog)
    e_object_del (E_OBJECT (mpdule_config->config_dialog));
  if (mpdule_config->menu)
    {
      e_menu_post_deactivate_callback_set (mpdule_config->menu, NULL, NULL);
      e_object_del (E_OBJECT (mpdule_config->menu));
      mpdule_config->menu = NULL;
    }

  while (mpdule_config->items)
    {
      Config_Item *ci;

      ci = mpdule_config->items->data;
      mpdule_config->items =
	eina_list_remove_list (mpdule_config->items, mpdule_config->items);
      if (ci->id)
	eina_stringshare_del (ci->id);
      free (ci);
      ci = NULL;
    }

  free (mpdule_config);
  mpdule_config = NULL;
  E_CONFIG_DD_FREE (conf_item_edd);
  E_CONFIG_DD_FREE (conf_edd);
  return 1;
}

EAPI int
e_modapi_save (E_Module * m)
{
  e_config_domain_save ("module.mpdule", conf_edd, mpdule_config);
  return 1;
}

static void
_mpdule_popup_destroy (Instance * inst)
{
  if (!inst->popup)
    return;
  e_object_del (E_OBJECT (inst->popup));
}

static void
_mpdule_popup_create (Instance * inst, const char *dir)
{
  Evas *evas;
  Evas_Object *o_popup;
  char buf[4096];
  
  if (inst->ci->show_popup)
    {
       inst->popup = e_gadcon_popup_new (inst->gcc);
       evas = inst->popup->win->evas;
       o_popup = edje_object_add (evas);
       if (!e_theme_edje_object_set
	     (o_popup, "base/theme/modules/mpdule", "modules/mpdule/popup"))
	 {
	    if (dir)
	      {
		 edje_object_file_set (o_popup, dir, "modules/mpdule/popup");
	      }
	    else
	      {
		 snprintf(buf, sizeof(buf), "%s/mpdule.edj",
		       e_module_dir_get(mpdule_config->module));
		 edje_object_file_set(o_popup, buf, "modules/mpdule/popup");
	      }
	 }
       evas_object_show (o_popup);
       e_gadcon_popup_content_set (inst->popup, o_popup);
       edje_object_size_min_calc (o_popup, NULL, NULL);
       inst->o_popup = o_popup;
       edje_object_signal_callback_add (o_popup, "mpdule,play", "",
				   _mpdule_cb_play, inst);
       edje_object_signal_callback_add (o_popup, "mpdule,stop", "",
				   _mpdule_cb_stop, inst);
       edje_object_signal_callback_add (o_popup, "mpdule,pause", "",
				   _mpdule_cb_pause, inst);
       edje_object_signal_callback_add (o_popup, "mpdule,next", "",
				   _mpdule_cb_next, inst);
       edje_object_signal_callback_add (o_popup, "mpdule,previous", "",
				   _mpdule_cb_previous, inst);
    }
  else
    {
       inst->popup = NULL;
       inst->o_popup = NULL;
    }
}