V9. Textarea, rotary encoder

General discussion
1

Hello. I am trying to edit textarea value with rotary encoder.
Text area have cb function:

lv_obj_add_event_cb(time_offset_value, ta_event_cb, LV_EVENT_ALL, NULL);

In my CB function I try to get event from rotary encoder:

static void ta_event_cb(lv_event_t * e)
{
    lv_obj_t * ta = lv_event_get_target_obj(e);
    lv_event_code_t code = lv_event_get_code(e);

    if(code == LV_EVENT_KEY){
        uint32_t key = lv_indev_get_key(lv_indev_active());
        int32_t rotary = lv_event_get_rotary_diff(e);
        DEBUG("GET KEY: %d %d %i",code,key,rotary);
    }

    if(code == LV_EVENT_ROTARY){
        DEBUG("!!!===>>> ROTARY <====");
    }
}

But LV_EVENT_ROTARY never come.
In LV_EVENT_KEY key variable value and rotary variable value always 0.

My input device works, it move cursor inside textarea and I have log messages:

[Info]  (15.295, +210)   indev_encoder_proc: rotated by +1 (edit) lv_indev.c:1060

How can i get this event (rotated +1 and -1) to change the value of textarea, instead of moving cursor?