efl/legacy/elementary/src/lib/elm_plug.c

#include <Elementary.h>
#include "elm_priv.h"

static const char PLUG_SMART_NAME[] = "elm_plug";

#define ELM_PLUG_DATA_GET(o, sd) \
  Elm_Plug_Smart_Data * sd = evas_object_smart_data_get(o)

#define ELM_PLUG_DATA_GET_OR_RETURN(o, ptr)          \
  ELM_PLUG_DATA_GET(o, ptr);                         \
  if (!ptr)                                          \
    {                                                \
       CRITICAL("No widget data for object %p (%s)", \
                o, evas_object_type_get(o));         \
       return;                                       \
    }

#define ELM_PLUG_DATA_GET_OR_RETURN_VAL(o, ptr, val) \
  ELM_PLUG_DATA_GET(o, ptr);                         \
  if (!ptr)                                          \
    {                                                \
       CRITICAL("No widget data for object %p (%s)", \
                o, evas_object_type_get(o));         \
       return val;                                   \
    }

#define ELM_PLUG_CHECK(obj)                                             \
  if (!obj || !elm_widget_type_check((obj), PLUG_SMART_NAME, __func__)) \
    return

typedef struct _Elm_Plug_Smart_Data Elm_Plug_Smart_Data;

struct _Elm_Plug_Smart_Data
{
   Elm_Widget_Smart_Data base;    /* base widget smart data as
                                   * first member obligatory, as
                                   * we're inheriting from it */
};

static const char SIG_CLICKED[] = "clicked";
static const Evas_Smart_Cb_Description _smart_callbacks[] = {
   {SIG_CLICKED, ""},
   {NULL, NULL}
};

EVAS_SMART_SUBCLASS_NEW
  (PLUG_SMART_NAME, _elm_plug, Elm_Widget_Smart_Class,
  Elm_Widget_Smart_Class, elm_widget_smart_class_get, _smart_callbacks);

static void
_sizing_eval(Evas_Object *obj)
{
   Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;

   //TODO: get socket object size
   evas_object_size_hint_min_set(obj, minw, minh);
   evas_object_size_hint_max_set(obj, maxw, maxh);
}

static Eina_Bool
_elm_plug_smart_theme(Evas_Object *obj)
{
   if (!_elm_plug_parent_sc->theme(obj)) return EINA_FALSE;

   _sizing_eval(obj);

   return EINA_TRUE;
}

static void
_on_mouse_up(void *data,
             Evas *e __UNUSED__,
             Evas_Object *obj __UNUSED__,
             void *event_info __UNUSED__)
{
   evas_object_smart_callback_call(data, SIG_CLICKED, NULL);
}

static void
_elm_plug_smart_add(Evas_Object *obj)
{
   Evas_Object *p_obj;
   Ecore_Evas *ee;

   EVAS_SMART_DATA_ALLOC(obj, Elm_Plug_Smart_Data);

   elm_widget_can_focus_set(obj, EINA_FALSE);

   _elm_plug_parent_sc->base.add(obj);

   ee = ecore_evas_ecore_evas_get(evas_object_evas_get(obj));
   if (!ee) return;

   p_obj = ecore_evas_extn_plug_new(ee);
   if (!p_obj) return;

   elm_widget_resize_object_set(obj, p_obj);

   evas_object_event_callback_add
     (ELM_WIDGET_DATA(priv)->resize_obj, EVAS_CALLBACK_MOUSE_UP, _on_mouse_up,
     obj);

   _sizing_eval(obj);
}

static void
_elm_plug_smart_set_user(Elm_Widget_Smart_Class *sc)
{
   sc->base.add = _elm_plug_smart_add;

   sc->theme = _elm_plug_smart_theme;
}

EAPI Evas_Object *
elm_plug_add(Evas_Object *parent)
{
   Evas_Object *obj;

   EINA_SAFETY_ON_NULL_RETURN_VAL(parent, NULL);

   obj = elm_widget_add(_elm_plug_smart_class_new(), parent);
   if (!obj) return NULL;

   ELM_PLUG_DATA_GET(obj, sd);
   if (!ELM_WIDGET_DATA(sd)->resize_obj) return NULL;

   if (!elm_widget_sub_object_add(parent, obj))
     ERR("could not add %p as sub object of %p", obj, parent);

   return obj;
}

EAPI Evas_Object *
elm_plug_image_object_get(const Evas_Object *obj)
{
   ELM_PLUG_CHECK(obj) NULL;
   ELM_PLUG_DATA_GET(obj, sd);

   return ELM_WIDGET_DATA(sd)->resize_obj;
}

EAPI Eina_Bool
elm_plug_connect(Evas_Object *obj,
                 const char *svcname,
                 int svcnum,
                 Eina_Bool svcsys)
{
   Evas_Object *plug_img = NULL;

   plug_img = elm_plug_image_object_get(obj);
   if (!plug_img) return EINA_FALSE;

   return ecore_evas_extn_plug_connect(plug_img, svcname, svcnum, svcsys);
}