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fix lv_obj_del

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This commit is contained in:
Gabor Kiss-Vamosi 2020-03-21 00:31:24 +01:00
parent 9abe6b89cc
commit 6b3aa73c17
1 changed files with 82 additions and 75 deletions
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157
src/lv_core/lv_obj.c
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@ -91,6 +91,7 @@ static void opa_scale_anim(lv_obj_t * obj, lv_anim_value_t v);
#endif
static void lv_event_mark_deleted(lv_obj_t * obj);
static void lv_obj_del_async_cb(void * obj);
static void obj_del_core(lv_obj_t * obj);
/**********************
* STATIC VARIABLES
@ -396,89 +397,18 @@ lv_res_t lv_obj_del(lv_obj_t * obj)
lv_disp_t * disp = NULL;
bool act_scr_del = false;
if(obj->parent == NULL) {
lv_obj_t * par = lv_obj_get_parent(obj);
if(par == NULL) {
disp = lv_obj_get_disp(obj);
if(!disp) return LV_RES_INV; /*Shouldn't happen*/
if(disp->act_scr == obj) act_scr_del = true;
}
/*Let the user free the resources used in `LV_EVENT_DELETE`*/
lv_event_send(obj, LV_EVENT_DELETE, NULL);
/*Delete from the group*/
#if LV_USE_GROUP
lv_group_t * group = lv_obj_get_group(obj);
if(group) lv_group_remove_obj(obj);
#endif
/*Remove the animations from this object*/
#if LV_USE_ANIMATION
lv_anim_del(obj, NULL);
trans_del(obj, 0xFF, 0xFF, NULL);
#endif
/*Delete the user data*/
#if LV_USE_USER_DATA
#if LV_USE_USER_DATA_FREE
LV_USER_DATA_FREE(obj);
#endif
#endif
/*Recursively delete the children*/
lv_obj_t * i;
lv_obj_t * i_next;
i = lv_ll_get_head(&(obj->child_ll));
while(i != NULL) {
/*Get the next object before delete this*/
i_next = lv_ll_get_next(&(obj->child_ll), i);
/*Call the recursive del to the child too*/
lv_obj_del(i);
/*Set i to the next node*/
i = i_next;
}
lv_event_mark_deleted(obj);
/* Reset all input devices if the object to delete is used*/
lv_indev_t * indev = lv_indev_get_next(NULL);
while(indev) {
if(indev->proc.types.pointer.act_obj == obj || indev->proc.types.pointer.last_obj == obj) {
lv_indev_reset(indev, obj);
}
if(indev->proc.types.pointer.last_pressed == obj) {
indev->proc.types.pointer.last_pressed = NULL;
}
#if LV_USE_GROUP
if(indev->group == group && obj == lv_indev_get_obj_act()) {
lv_indev_reset(indev, obj);
}
#endif
indev = lv_indev_get_next(indev);
}
/* All children deleted.
* Now clean up the object specific data*/
obj->signal_cb(obj, LV_SIGNAL_CLEANUP, NULL);
/*Remove the object from parent's children list*/
lv_obj_t * par = lv_obj_get_parent(obj);
if(par == NULL) { /*It is a screen*/
lv_disp_t * d = lv_obj_get_disp(obj);
lv_ll_remove(&d->scr_ll, obj);
}
else {
lv_ll_remove(&(par->child_ll), obj);
}
/*Delete the base objects*/
if(obj->ext_attr != NULL) lv_mem_free(obj->ext_attr);
lv_mem_free(obj); /*Free the object itself*/
obj_del_core(obj);
/*Send a signal to the parent to notify it about the child delete*/
if(par != NULL) {
if(par) {
par->signal_cb(par, LV_SIGNAL_CHILD_CHG, NULL);
}
@ -3305,6 +3235,83 @@ static void lv_obj_del_async_cb(void * obj)
lv_obj_del(obj);
}
static void obj_del_core(lv_obj_t * obj)
{
/*Let the user free the resources used in `LV_EVENT_DELETE`*/
lv_event_send(obj, LV_EVENT_DELETE, NULL);
/*Delete from the group*/
#if LV_USE_GROUP
lv_group_t * group = lv_obj_get_group(obj);
if(group) lv_group_remove_obj(obj);
#endif
/*Remove the animations from this object*/
#if LV_USE_ANIMATION
lv_anim_del(obj, NULL);
trans_del(obj, 0xFF, 0xFF, NULL);
#endif
/*Delete the user data*/
#if LV_USE_USER_DATA
#if LV_USE_USER_DATA_FREE
LV_USER_DATA_FREE(obj);
#endif
#endif
/*Recursively delete the children*/
lv_obj_t * i;
lv_obj_t * i_next;
i = lv_ll_get_head(&(obj->child_ll));
while(i != NULL) {
/*Get the next object before delete this*/
i_next = lv_ll_get_next(&(obj->child_ll), i);
/*Call the recursive del to the child too*/
lv_obj_del(i);
/*Set i to the next node*/
i = i_next;
}
lv_event_mark_deleted(obj);
/* Reset all input devices if the object to delete is used*/
lv_indev_t * indev = lv_indev_get_next(NULL);
while(indev) {
if(indev->proc.types.pointer.act_obj == obj || indev->proc.types.pointer.last_obj == obj) {
lv_indev_reset(indev, obj);
}
if(indev->proc.types.pointer.last_pressed == obj) {
indev->proc.types.pointer.last_pressed = NULL;
}
#if LV_USE_GROUP
if(indev->group == group && obj == lv_indev_get_obj_act()) {
lv_indev_reset(indev, obj);
}
#endif
indev = lv_indev_get_next(indev);
}
/* All children deleted.
* Now clean up the object specific data*/
obj->signal_cb(obj, LV_SIGNAL_CLEANUP, NULL);
/*Remove the object from parent's children list*/
lv_obj_t * par = lv_obj_get_parent(obj);
if(par == NULL) { /*It is a screen*/
lv_disp_t * d = lv_obj_get_disp(obj);
lv_ll_remove(&d->scr_ll, obj);
}
else {
lv_ll_remove(&(par->child_ll), obj);
}
/*Delete the base objects*/
if(obj->ext_attr != NULL) lv_mem_free(obj->ext_attr);
lv_mem_free(obj); /*Free the object itself*/
}
/**
* Handle the drawing related tasks of the base objects.