diff --git a/src/lv_core/lv_obj.c b/src/lv_core/lv_obj.c
index 5bd6353a6..42f28a175 100644
--- a/src/lv_core/lv_obj.c
+++ b/src/lv_core/lv_obj.c
@@ -57,6 +57,7 @@ static lv_res_t lv_obj_signal(lv_obj_t * obj, lv_signal_t sign, void * param);
  **********************/
 static bool lv_initialized = false;
 static lv_event_temp_data_t * event_temp_data_head;
+static const void * event_act_data;
 
 /**********************
  *      MACROS
@@ -1327,6 +1328,23 @@ lv_res_t lv_event_send(lv_obj_t * obj, lv_event_t event, const void * data)
 {
     if(obj == NULL) return LV_RES_OK;
 
+    lv_res_t res;
+    res = lv_event_send_func(obj->event_cb, obj, event, data);
+    return res;
+}
+
+/**
+ * Call an event function with an object, event, and data.
+ * @param event_cb an event callback function. If `NULL` `LV_RES_OK` will return without any actions.
+ * @param obj pointer to an object to associate with the event (can be `NULL` to simply call the `event_cb`)
+ * @param event an event
+ * @param data pointer to a custom data
+ * @return LV_RES_OK: `obj` was not deleted in the event; LV_RES_INV: `obj` was deleted in the event
+ */
+lv_res_t lv_event_send_func(lv_event_cb_t event_cb, lv_obj_t * obj, lv_event_t event, const void * data)
+{
+    if(event_cb == NULL) return LV_RES_OK;
+
     lv_event_temp_data_t event_temp_data;
     event_temp_data.obj = obj;
     event_temp_data.deleted = false;
@@ -1341,18 +1359,26 @@ lv_res_t lv_event_send(lv_obj_t * obj, lv_event_t event, const void * data)
 
     event_temp_data_head = &event_temp_data;
 
-    if(obj->event_cb) obj->event_cb(obj, event);
+    event_act_data = data;
+
+    if(event_cb) event_cb(obj, event);
 
     /*Remove this element from the list*/
     event_temp_data_head = event_temp_data_head->prev;
 
     if(event_temp_data.deleted) {
+        event_act_data = NULL;
         return LV_RES_INV;
     }
 
-    if(obj->parent_event && obj->par) {
-        lv_res_t res = lv_event_send(obj->par, event, data);
-        if(res != LV_RES_OK) return LV_RES_INV;
+    if(obj) {
+        if(obj->parent_event && obj->par) {
+            lv_res_t res = lv_event_send(obj->par, event, data);
+            if(res != LV_RES_OK) {
+                event_act_data = NULL;
+                return LV_RES_INV;
+            }
+        }
     }
 
     return LV_RES_OK;
@@ -1364,7 +1390,7 @@ lv_res_t lv_event_send(lv_obj_t * obj, lv_event_t event, const void * data)
  */
 const void * lv_event_get_data(void)
 {
-    return NULL; //event_act_data;
+    return event_act_data;
 }
 
 /**
@@ -1944,14 +1970,15 @@ void lv_obj_get_type(lv_obj_t * obj, lv_obj_type_t * buf)
 }
 
 #if LV_USE_USER_DATA_SINGLE
+
 /**
  * Get a pointer to the object's user data
  * @param obj pointer to an object
  * @return pointer to the user data
  */
-lv_obj_user_data_t * lv_obj_get_user_data(lv_obj_t * obj)
+lv_obj_user_data_t lv_obj_get_user_data(lv_obj_t * obj)
 {
-    return &obj->user_data;
+    return obj->user_data;
 }
 
 /**
diff --git a/src/lv_core/lv_obj.h b/src/lv_core/lv_obj.h
index 3193b9ca1..6dd264db6 100644
--- a/src/lv_core/lv_obj.h
+++ b/src/lv_core/lv_obj.h
@@ -562,6 +562,16 @@ void lv_obj_set_event_cb(lv_obj_t * obj, lv_event_cb_t event_cb);
  */
 lv_res_t lv_event_send(lv_obj_t * obj, lv_event_t event, const void * data);
 
+/**
+ * Call an event function with an object, event, and data.
+ * @param event_cb an event callback function
+ * @param obj pointer to an object to associate with the event (can be `NULL` to simply call the `event_cb`)
+ * @param event an event
+ * @param data pointer to a custom data
+ * @return LV_RES_OK: `obj` was not deleted in the event; LV_RES_INV: `obj` was deleted in the event
+ */
+lv_res_t lv_event_send_func(lv_event_cb_t event_cb, lv_obj_t * obj, lv_event_t event, const void * data);
+
 /**
  * Get the `data` parameter of the current event
  * @return the `data` parameter
@@ -903,7 +913,7 @@ void lv_obj_get_type(lv_obj_t * obj, lv_obj_type_t * buf);
  * @param obj pointer to an object
  * @return pointer to the user data
  */
-lv_obj_user_data_t * lv_obj_get_user_data(lv_obj_t * obj);
+lv_obj_user_data_t lv_obj_get_user_data(lv_obj_t * obj);
 
 /**
  * Set the object's user data. The data will be copied.
diff --git a/src/lv_core/lv_refr.c b/src/lv_core/lv_refr.c
index 7d2ee5659..0465d2fbe 100644
--- a/src/lv_core/lv_refr.c
+++ b/src/lv_core/lv_refr.c
@@ -72,7 +72,12 @@ void lv_refr_init(void)
  */
 void lv_refr_now(void)
 {
-    lv_disp_refr_task(NULL);
+    lv_disp_t * d;
+    d = lv_disp_get_next(NULL);
+    while(d) {
+        lv_disp_refr_task(d->refr_task);
+        d = lv_disp_get_next(d);
+    }
 }
 
 /**
diff --git a/src/lv_misc/lv_task.c b/src/lv_misc/lv_task.c
index 0824222ee..af7c105aa 100644
--- a/src/lv_misc/lv_task.c
+++ b/src/lv_misc/lv_task.c
@@ -204,9 +204,7 @@ lv_task_t * lv_task_create(void (*task)(lv_task_t *), uint32_t period, lv_task_p
     new_lv_task->once     = 0;
     new_lv_task->last_run = lv_tick_get();
 
-#if LV_USE_USER_DATA_SINGLE
     new_lv_task->user_data    = user_data;
-#endif
 
 #if LV_USE_USER_DATA_MULTI
     new_lv_task->task_user_data    = NULL;
diff --git a/src/lv_misc/lv_task.h b/src/lv_misc/lv_task.h
index b0e37b54d..0a01a6acf 100644
--- a/src/lv_misc/lv_task.h
+++ b/src/lv_misc/lv_task.h
@@ -57,9 +57,7 @@ typedef struct _lv_task_t
     uint32_t last_run;
     void (*task_cb)(struct _lv_task_t *);
 
-#if LV_USE_USER_DATA_SINGLE
     void * user_data;
-#endif
 
 #if LV_USE_USER_DATA_MULTI
     void * task_user_data;
diff --git a/src/lv_objx/lv_mbox.c b/src/lv_objx/lv_mbox.c
index a4f6a777a..11fa529a2 100644
--- a/src/lv_objx/lv_mbox.c
+++ b/src/lv_objx/lv_mbox.c
@@ -215,7 +215,6 @@ void lv_mbox_start_auto_close(lv_obj_t * mbox, uint16_t delay)
         a.playback_pause = 0;
         a.repeat = 0;
         a.repeat_pause = 0;
-        a.user_data = NULL;
         lv_anim_create(&a);
 
         a.start = lv_obj_get_width(mbox);
@@ -239,7 +238,6 @@ void lv_mbox_start_auto_close(lv_obj_t * mbox, uint16_t delay)
         a.playback_pause = 0;
         a.repeat = 0;
         a.repeat_pause = 0;
-        a.user_data = NULL;
         lv_anim_create(&a);
     }
 #else
diff --git a/src/lv_objx/lv_ta.c b/src/lv_objx/lv_ta.c
index 28090c62b..16d7ee56e 100644
--- a/src/lv_objx/lv_ta.c
+++ b/src/lv_objx/lv_ta.c
@@ -48,6 +48,7 @@ static lv_res_t lv_ta_scrollable_signal(lv_obj_t * scrl, lv_signal_t sign, void
 static void cursor_blink_anim(lv_obj_t * ta, uint8_t show);
 static void pwd_char_hider_anim(lv_obj_t * ta, int32_t x);
 #endif
+static void pwd_char_hider_anim_ready(lv_anim_t * a);
 static void pwd_char_hider(lv_obj_t * ta);
 static bool char_is_accepted(lv_obj_t * ta, uint32_t c);
 static void get_cursor_style(lv_obj_t * ta, lv_style_t * style_res);
@@ -252,7 +253,7 @@ void lv_ta_add_char(lv_obj_t * ta, uint32_t c)
         a.exec_cb             = (lv_anim_exec_cb_t)pwd_char_hider_anim;
         a.time           = LV_TA_PWD_SHOW_TIME;
         a.act_time       = 0;
-        a.ready_cb         = (lv_anim_ready_cb_t)pwd_char_hider;
+        a.ready_cb         = pwd_char_hider_anim_ready;
         a.start          = 0;
         a.end            = 1;
         a.repeat         = 0;
@@ -332,7 +333,7 @@ void lv_ta_add_text(lv_obj_t * ta, const char * txt)
         a.exec_cb             = (lv_anim_exec_cb_t)pwd_char_hider_anim;
         a.time           = LV_TA_PWD_SHOW_TIME;
         a.act_time       = 0;
-        a.ready_cb         = (lv_anim_ready_cb_t)pwd_char_hider;
+        a.ready_cb       = pwd_char_hider_anim_ready;
         a.start          = 0;
         a.end            = 1;
         a.repeat         = 0;
@@ -469,10 +470,10 @@ void lv_ta_set_text(lv_obj_t * ta, const char * txt)
         /*Auto hide characters*/
         lv_anim_t a;
         a.var            = ta;
-        a.exec_cb             = (lv_anim_exec_cb_t)pwd_char_hider_anim;
+        a.exec_cb        = (lv_anim_exec_cb_t)pwd_char_hider_anim;
         a.time           = LV_TA_PWD_SHOW_TIME;
         a.act_time       = 0;
-        a.ready_cb         = (lv_anim_ready_cb_t)pwd_char_hider;
+        a.ready_cb       = pwd_char_hider_anim_ready;
         a.start          = 0;
         a.end            = 1;
         a.repeat         = 0;
@@ -1418,6 +1419,17 @@ static void pwd_char_hider_anim(lv_obj_t * ta, int32_t x)
 
 #endif
 
+
+/**
+ * Call when an animation is ready to convert all characters to '*'
+ * @param a pointer to the animation
+ */
+static void pwd_char_hider_anim_ready(lv_anim_t * a)
+{
+    lv_obj_t * ta = a->var;
+    pwd_char_hider(ta);
+}
+
 /**
  * Hide all characters (convert them to '*')
  * @param ta: pointer to text area object