How do I remove indicators from a dom tree?

[hankaibo]

Hi, I referenced your tree example and wrote a version for vue: https://github.com/mypandora/query-builder/tree/main
But my tree is nested, when I move it first goes to parent P, then add indicator; continue moving and go to child C and show another indicator.
Because the child is inside the parent, it doesn't trigger onDragLeave, so I can't remove the tag from the parent.

How should this be resolved?

thanks.

[hankaibo]

I found a way to do this, not sure if it's a reasonable solution.
I added the judgement to onDrag: https://github.com/mypandora/query-builder/blob/main/lib/TreeNode.vue#L168:L175

if (location.current.dropTargets.length > 1) {
// console.log("location", this.node?.name, this, location);
  if (this.node?.children) {
    this.instruction = null;
    return;
  }
}