Collapse children of collapsed node possible?

[mike-ward]

Open a node several levels deep. Then collapse the first node opened. The nodes expanded under the first node are still expanded. You can see this by reopening a node. Is there a way to collapse the children of the collapsed node? If not maybe add a configuration option?

[yoavaa]

the list of expanded nodes is managed in the expanded nodes array. Just remove from it what you do not wanna have there.

I did not implement the logic to do so automatically.

Having such a configuration option sounds nice, if you create a PR (with tests) will merge it.

[mike-ward]

I looked at the array before posting this issue. I didn't see a way to determine if a node was a child of another (no parent reference). Maybe there's something I don't understand about the structure.

[mike-ward]

For what it's worth I was able to write a function to do this. Hooked it into the on-toggle-node event.

function collapseNode(node): void {
    scope.expandedNodes = scope.expandedNodes.filter(en => isNotChild(node, en));
}

function isNotChild(node, en): boolean {
    if (!node.children) return true;
    return node.children.every(n => n !== en && isNotChild(n, en));
}