Method: Calls admin_print_scripts-widgets.php and admin_print_scripts hooks to allow custom scripts from plugins.

Method: Calls admin_print_styles-widgets.php and admin_print_styles hooks to allow custom styles from plugins.

Method: Refreshes the nonce for widget updates.

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

Method: {@internal Missing Summary}

Method: Renders a specific widget using the supplied sidebar arguments.

Method: Ensures sidebar widget arrays only ever contain widget IDS.

Method: Strips out widget IDs for widgets which are no longer registered.

Method: Sanitizes a widget instance.

Method: Converts a widget instance into JSON-representable format.

Method: Ensures widgets are available for all types of previews.

Method: Adds hooks for selective refresh.

Method: {@internal Missing Summary}

Method: Begins keeping track of changes to widget options, caching new values.

Method: Begins keeping track of the current sidebar being rendered.

Method: Undoes any changes to the options since options capture began.

Method: Tracks the widgets that were rendered.

Method: Tallies the sidebars rendered via dynamic_sidebar().

Method: Tallies the sidebars rendered via is_active_sidebar().

Method: Updates widget settings asynchronously.

Method: Naturally orders available widgets by name.

Method: Initial loader.