Intended for advanced use by developers to obtain the currently active theme
at render time and primarily for implementing themable widgets that can't
otherwise be themed via bs_dependency_defer() .
bs_current_theme(session = get_current_session(FALSE))Returns a bs_theme() object.
The current Shiny session (if any).
This function should generally only be called at print/render time. For example:
Inside the preRenderHook of htmlwidgets::createWidget().
Inside of a custom print method that generates htmltools::tags.
Inside of a htmltools::tagFunction()
Calling this function at print/render time is important because it does different things based on the context in which it's called:
If a reactive context is active, session$getCurrentTheme() is called
(which is a reactive read).
If no reactive context is active, shiny::getCurrentTheme() is called
(which returns the current app's theme, if relevant).
If shiny::getCurrentTheme() comes up empty, then bs_global_get()
is called, which is relevant for rmarkdown::html_document(), and
possibly other static rendering contexts.
Other Bootstrap theme functions:
bs_add_variables(),
bs_dependency(),
bs_global_theme(),
bs_remove(),
bs_theme(),
bs_theme_dependencies(),
bs_theme_preview()