Refreshes the nonce for widget updates.

Inspects the incoming customized data for any widget settings, and dynamically adds them up-front so widgets will be initialized properly.

{@internal Missing Summary}

{@internal Missing Summary}

Constructor.

Get a flattened list of sanitized meta clauses.

Given a top level page ID, display the nested hierarchy of sub-pages together with paging support

Determine if the current view is the “All” view.

Sets whether the table layout should be hierarchical or not.

Parse a query string and set query type booleans.