Embedded/lvgl
1
0
Fork 0
mirror of https://github.com/lvgl/lvgl.git synced 2025-01-14 06:42:58 +08:00
Code Issues Projects Releases Wiki Activity

fix(tree): fix crash caused by clean parent in del cb (#4900)

Browse Source 
Signed-off-by: yushuailong1 <yushuailong1@xiaomi.com>
Co-authored-by: yushuailong1 <yushuailong1@xiaomi.com>
This commit is contained in:
fuxiujun 2023-11-30 20:20:05 +08:00 committed by GitHub
parent f3bc98474c
commit 2dadaaebad
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 20 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
src/core/lv_obj_tree.c
View File

@ -36,6 +36,7 @@ static void lv_obj_delete_async_cb(void * obj);
static void obj_delete_core(lv_obj_t * obj);
static lv_obj_tree_walk_res_t walk_core(lv_obj_t * obj, lv_obj_tree_walk_cb_t cb, void * user_data);
static lv_obj_tree_walk_res_t dump_tree_core(lv_obj_t * obj, int32_t depth);
static lv_obj_t * lv_obj_get_first_not_deleting_child(lv_obj_t * obj);
/**********************
* STATIC VARIABLES
@ -99,10 +100,10 @@ void lv_obj_clean(lv_obj_t * obj)
lv_obj_invalidate(obj);
lv_obj_t * child = lv_obj_get_child(obj, 0);
lv_obj_t * child = lv_obj_get_first_not_deleting_child(obj);
while(child) {
obj_delete_core(child);
child = lv_obj_get_child(obj, 0);
child = lv_obj_get_first_not_deleting_child(obj);
}
/*Just to remove scroll animations if any*/
lv_obj_scroll_to(obj, 0, 0, LV_ANIM_OFF);
@ -616,3 +617,20 @@ static lv_obj_tree_walk_res_t dump_tree_core(lv_obj_t * obj, int32_t depth)
return LV_OBJ_TREE_WALK_END;
}
}
static lv_obj_t * lv_obj_get_first_not_deleting_child(lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
if(obj->spec_attr == NULL) return NULL;
int32_t i;
int32_t cnt = (int32_t)obj->spec_attr->child_cnt;
for(i = 0; i < cnt; i++) {
if(!obj->spec_attr->children[i]->is_deleting) {
return obj->spec_attr->children[i];
}
}
return NULL;
}