efl/legacy/eobj/examples/signals/simple.c

111 lines
2.5 KiB
C

#include "Eo.h"
#include "simple.h"
#include "config.h"
EAPI Eo_Op SIMPLE_BASE_ID = 0;
typedef struct
{
Simple_Public_Data pub;
int a;
} Private_Data;
EAPI const Eo_Event_Description _EV_A_CHANGED =
EO_EVENT_DESCRIPTION("a,changed", "i", "Called when a has changed.");
#define MY_CLASS SIMPLE_CLASS
static void
_a_set(Eo *obj, void *class_data, va_list *list)
{
Private_Data *pd = class_data;
int a;
a = va_arg(*list, int);
pd->a = a;
printf("%s %d\n", __func__, pd->a);
eo_do(obj, eo_event_callback_call(EV_A_CHANGED, &pd->a, NULL));
}
Eina_Bool
_cb_added(void *data, Eo *obj, const Eo_Event_Description *desc, void *event_info)
{
Simple_Public_Data *pd = eo_data_get(obj, MY_CLASS);
const Eo_Event_Description *cb_desc = event_info;
(void) data;
(void) desc;
if (cb_desc != EV_A_CHANGED)
return EINA_TRUE;
pd->cb_count++;
printf("Added EV_A_CHANGED callback to %p. Count: %d\n", obj, pd->cb_count);
return EO_CALLBACK_CONTINUE;
}
Eina_Bool
_cb_deled(void *data, Eo *obj, const Eo_Event_Description *desc, void *event_info)
{
Simple_Public_Data *pd = eo_data_get(obj, MY_CLASS);
const Eo_Event_Description *cb_desc = event_info;
(void) data;
(void) desc;
if (cb_desc != EV_A_CHANGED)
return EINA_TRUE;
pd->cb_count--;
printf("Removed EV_A_CHANGED callback from %p. Count: %d\n", obj, pd->cb_count);
return EO_CALLBACK_CONTINUE;
}
static void
_constructor(Eo *obj, void *class_data EINA_UNUSED)
{
eo_constructor_super(obj);
eo_do(obj, eo_event_callback_add(EO_EV_CALLBACK_ADD, _cb_added, NULL));
eo_do(obj, eo_event_callback_add(EO_EV_CALLBACK_DEL, _cb_deled, NULL));
eo_do(obj, eo_base_data_set("cb_count", (intptr_t) 0, NULL));
}
static void
_class_constructor(Eo_Class *klass)
{
const Eo_Op_Func_Description func_desc[] = {
EO_OP_FUNC(SIMPLE_ID(SIMPLE_SUB_ID_A_SET), _a_set),
EO_OP_FUNC_SENTINEL
};
eo_class_funcs_set(klass, func_desc);
}
static const Eo_Op_Description op_desc[] = {
EO_OP_DESCRIPTION(SIMPLE_SUB_ID_A_SET, "i", "Set property A"),
EO_OP_DESCRIPTION_SENTINEL
};
static const Eo_Event_Description *event_desc[] = {
EV_A_CHANGED,
NULL
};
static const Eo_Class_Description class_desc = {
"Simple",
EO_CLASS_TYPE_REGULAR,
EO_CLASS_DESCRIPTION_OPS(&SIMPLE_BASE_ID, op_desc, SIMPLE_SUB_ID_LAST),
event_desc,
sizeof(Private_Data),
_constructor,
NULL,
_class_constructor,
NULL
};
EO_DEFINE_CLASS(simple_class_get, &class_desc, EO_BASE_CLASS, NULL);