Validate bs4Dash navbar rightUi structure

Checks that each direct child supplied to bs4DashNavbar(rightUi = ...) is a complete navbar list item with the dropdown class expected by bs4Dash/AdminLTE.

Usage

validate_bs4dash_navbar(rightUi)

Arguments

rightUi

A shiny::tagList() or tag intended for bs4DashNavbar(rightUi = ...).

Value

Invisibly returns TRUE when valid; otherwise errors with a targeted message.