vector lottie: reset vg tree each frames.

Since vector tree nodes are reusing instead of reconstrucion,
We make it sure that dangling nodes invisible by clearing all nodes visibility.

Only valid nodes will be reset to visible while setting up in the progress.

1 files changed, 17 insertions, 4 deletions

diff --git a/src/static_libs/vg_common/vg_common_json.c b/src/static_libs/vg_common/vg_common_json.c
index 2c31d7881a..43ef86b353 100644
--- a/src/static_libs/vg_common/vg_common_json.c
+++ b/src/static_libs/vg_common/vg_common_json.c
@@ -352,13 +352,24 @@ _construct_masks(Efl_Canvas_Vg_Container *mtarget, LOTMask *masks, unsigned int
 }
 
 static void
-_update_vg_tree(Efl_Canvas_Vg_Container *root, const LOTLayerNode *layer, int depth EINA_UNUSED)
+_reset_vg_tree(Efl_VG *node)
 {
-   if (!layer->mVisible)
+   //Hide all nodes visibility
+   if (efl_isa(node, EFL_CANVAS_VG_CONTAINER_CLASS))
      {
-        efl_gfx_entity_visible_set(root, EINA_FALSE);
-        return;
+        Efl_VG* child;
+        Eina_Iterator *itr = efl_canvas_vg_container_children_get(node);
+        EINA_ITERATOR_FOREACH(itr, child)
+          _reset_vg_tree(child);
      }
+   efl_gfx_entity_visible_set(node, EINA_FALSE);
+}
+
+static void
+_update_vg_tree(Efl_Canvas_Vg_Container *root, const LOTLayerNode *layer, int depth EINA_UNUSED)
+{
+   if (!layer->mVisible) return;
+
    efl_gfx_entity_visible_set(root, EINA_TRUE);
    efl_gfx_color_set(root, layer->mAlpha, layer->mAlpha, layer->mAlpha, layer->mAlpha);
 
@@ -523,6 +534,8 @@ vg_common_json_create_vg_node(Vg_File_Data *vfd)
         if (tree->keypath) efl_key_data_set(root, "_lot_node_name", tree->keypath);
         vfd->root = root;
      }
+   else _reset_vg_tree(root);
+
    _update_vg_tree(root, tree, 1);
 #else
    return EINA_FALSE;