src/lib/elm_container.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3 #include "elm_widget_container.h"
   4
   5 static const char CONTAINER_SMART_NAME[] = "elm_container";
   6
   7 /* Elementary smart class for all widgets containing others */
   8 EVAS_SMART_SUBCLASS_NEW
   9   (CONTAINER_SMART_NAME, _elm_container, Elm_Container_Smart_Class,
  10   Elm_Widget_Smart_Class, elm_widget_smart_class_get, NULL);
  11
  12 /* no *direct* instantiation of this class, so far */
  13 __UNUSED__ static Evas_Smart *_elm_container_smart_class_new(void);
  14
  15 static Eina_Bool
  16 _unimplemented_smart_content_set(Evas_Object *obj,
  17                                  const char *name __UNUSED__,
  18                                  Evas_Object *content __UNUSED__)
  19 {
  20     WRN("The %s widget does not implement the \"content_set()\" function.",
  21          elm_widget_type_get(obj));
  22
  23     return EINA_FALSE;
  24 }
  25
  26 static Evas_Object *
  27 _unimplemented_smart_content_get(const Evas_Object *obj,
  28                                  const char *name __UNUSED__)
  29 {
  30     WRN("The %s widget does not implement the \"content_get()\" function.",
  31          elm_widget_type_get(obj));
  32
  33     return NULL;
  34 }
  35
  36 static Evas_Object *
  37 _unimplemented_smart_content_unset(Evas_Object *obj,
  38                                    const char *name __UNUSED__)
  39 {
  40     WRN("The %s widunset does not implement the \"content_unset()\" function.",
  41          elm_widget_type_get(obj));
  42
  43     return NULL;
  44 }
  45
  46 EAPI const Elm_Container_Smart_Class *
  47 elm_container_smart_class_get(void)
  48 {
  49    static Elm_Container_Smart_Class _sc =
  50      ELM_CONTAINER_SMART_CLASS_INIT_NAME_VERSION(CONTAINER_SMART_NAME);
  51    static const Elm_Container_Smart_Class *class = NULL;
  52
  53    if (class)
  54      return class;
  55
  56    _elm_container_smart_set(&_sc);
  57    class = &_sc;
  58
  59    return class;
  60 }
  61
  62 static void
  63 _elm_container_smart_set_user(Elm_Container_Smart_Class *sc)
  64 {
  65    sc->content_set = _unimplemented_smart_content_set;
  66    sc->content_get = _unimplemented_smart_content_get;
  67    sc->content_unset = _unimplemented_smart_content_unset;
  68 }