28 lines
984 B
R
28 lines
984 B
R
#' Explicitly mark a Shiny input as optional
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#'
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#' @param input The Shiny input to mark as optional
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#' @param optClass The classes to add to the indicator text
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#'
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#' @return The modified input
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#' @export
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#'
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#' @examples
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#' x <- shiny::textInput("input_id", "Some text input")
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#' htmlMarkOptional(x)
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htmlMarkOptional <- function(input, optClass = "text-muted font-italic") {
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opt_span <- htmltools::tags$span(class = optClass, " (optional)")
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tq <- htmltools::tagQuery(input)
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if (tq$hasClass("shiny-input-checkboxgroup")) {
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tq <- tq$children("label")$append(opt_span)$reset()
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} else if (tq$find(".shiny-options-group")$length() > 0) {
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tq <- tq$children("label")$append(opt_span)$reset()
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} else if (tq$find(".btn-file")$length() > 0) {
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tq <- tq$children("label")$append(opt_span)$reset()
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} else {
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tq <- tq$
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children(".checkbox")$find("label span")$append(opt_span)$reset()$
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find("label.control-label")$append(opt_span)$reset()
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}
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tq$allTags()
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}
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