Function walkTree

packages/main/src/Tree.ts:532–539

(el: Tree | TreeItemBase, level: number, callback: WalkCallback)

const _isInstanceOfTreeItemBase = createInstanceChecker<TreeItemBase>("isTreeItem");

const walkTree = (el: Tree | TreeItemBase, level: number, callback: WalkCallback) => {
	(el.items).forEach((item, index) => {
		callback(item, level, index);
		if (item.items.length > 0) {
			walkTree(item, level + 1, callback);
		}
	});
};

Tree.define();