+_content_set_hook(Evas_Object *obj, const char *part __UNUSED__, Evas_Object *content)
+{
+ ELM_CHECK_WIDTYPE(obj, widtype);
+ Widget_Data *wd = elm_widget_data_get(obj);
+ if (!wd) return;
+ if (wd->icon == content) return;
+ if (wd->icon) evas_object_del(wd->icon);
+ wd->icon = content;
+ if (content)
+ {
+ elm_widget_sub_object_add(obj, content);
+ evas_object_event_callback_add(content,
+ EVAS_CALLBACK_CHANGED_SIZE_HINTS,
+ _changed_size_hints, obj);
+ edje_object_part_swallow(wd->btn, "elm.swallow.content", content);
+ edje_object_signal_emit(wd->btn, "elm,state,icon,visible", "elm");
+ edje_object_message_signal_process(wd->btn);
+ }
+ _sizing_eval(obj);
+}
+
+static Evas_Object *
+_content_get_hook(const Evas_Object *obj, const char *part __UNUSED__)
+{
+ ELM_CHECK_WIDTYPE(obj, widtype) NULL;
+ Widget_Data *wd = elm_widget_data_get(obj);
+ if (!wd) return NULL;
+ return wd->icon;
+}
+
+static Evas_Object *
+_content_unset_hook(Evas_Object *obj, const char *part __UNUSED__)
+{
+ ELM_CHECK_WIDTYPE(obj, widtype) NULL;
+ Widget_Data *wd = elm_widget_data_get(obj);
+ if (!wd) return NULL;
+ if (!wd->icon) return NULL;
+ Evas_Object *icon = wd->icon;
+ elm_widget_sub_object_del(obj, wd->icon);
+ evas_object_event_callback_del_full(wd->icon, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
+ _changed_size_hints, obj);
+ edje_object_part_unswallow(wd->btn, wd->icon);
+ wd->icon = NULL;
+ return icon;
+}
+
+static void