Widget: Hierarchical Menu

Details

How to Use: The hierarchical menu is a lot like a simplified tree. You provide it with an array of objects that represent the root elements. Each root element object has two keys, label and children. The label is the text on the button, children is an array of nested objects.

Each nested object must contain _either_ a children field or a url field. If it has children, it's rendered as a button and can expand/collapse. If it has a url, it's rendered as a link to that URL.