mirror of
https://github.com/rstudio/shiny.git
synced 2026-02-09 22:25:59 -05:00
5fdca29448
* Clarify interaction between width/height and CSS/templates * Reword given that height is less likely to be specified in CSS.
71 lines
2.4 KiB
R
71 lines
2.4 KiB
R
#' Create a textarea input control
|
|
#'
|
|
#' Create a textarea input control for entry of unstructured text values.
|
|
#'
|
|
#' @inheritParams textInput
|
|
#' @param height The height of the input, e.g. `'400px'`, or `'100%'`; see
|
|
#' [validateCssUnit()].
|
|
#' @param cols Value of the visible character columns of the input, e.g. `80`.
|
|
#' This argument will only take effect if there is not a CSS `width` rule
|
|
#' defined for this element; such a rule could come from the `width` argument
|
|
#' of this function or from a containing page layout such as
|
|
#' [fluidPage()].
|
|
#' @param rows The value of the visible character rows of the input, e.g. `6`.
|
|
#' If the `height` argument is specified, `height` will take precedence in the
|
|
#' browser's rendering.
|
|
#' @param resize Which directions the textarea box can be resized. Can be one of
|
|
#' `"both"`, `"none"`, `"vertical"`, and `"horizontal"`. The default, `NULL`,
|
|
#' will use the client browser's default setting for resizing textareas.
|
|
#' @return A textarea input control that can be added to a UI definition.
|
|
#'
|
|
#' @family input elements
|
|
#' @seealso [updateTextAreaInput()]
|
|
#'
|
|
#' @examples
|
|
#' ## Only run examples in interactive R sessions
|
|
#' if (interactive()) {
|
|
#'
|
|
#' ui <- fluidPage(
|
|
#' textAreaInput("caption", "Caption", "Data Summary", width = "1000px"),
|
|
#' verbatimTextOutput("value")
|
|
#' )
|
|
#' server <- function(input, output) {
|
|
#' output$value <- renderText({ input$caption })
|
|
#' }
|
|
#' shinyApp(ui, server)
|
|
#'
|
|
#' }
|
|
#' @export
|
|
textAreaInput <- function(inputId, label, value = "", width = NULL, height = NULL,
|
|
cols = NULL, rows = NULL, placeholder = NULL, resize = NULL) {
|
|
|
|
value <- restoreInput(id = inputId, default = value)
|
|
|
|
if (!is.null(resize)) {
|
|
resize <- match.arg(resize, c("both", "none", "vertical", "horizontal"))
|
|
}
|
|
|
|
style <- paste(
|
|
if (!is.null(width)) paste0("width: ", validateCssUnit(width), ";"),
|
|
if (!is.null(height)) paste0("height: ", validateCssUnit(height), ";"),
|
|
if (!is.null(resize)) paste0("resize: ", resize, ";")
|
|
)
|
|
|
|
# Workaround for tag attribute=character(0) bug:
|
|
# https://github.com/rstudio/htmltools/issues/65
|
|
if (length(style) == 0) style <- NULL
|
|
|
|
div(class = "form-group shiny-input-container",
|
|
shinyInputLabel(inputId, label),
|
|
tags$textarea(
|
|
id = inputId,
|
|
class = "form-control",
|
|
placeholder = placeholder,
|
|
style = style,
|
|
rows = rows,
|
|
cols = cols,
|
|
value
|
|
)
|
|
)
|
|
}
|