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#' Create a colour picker htmlwidget
#'
#' Create a colour picker htmlwidget. This is not terribly useful right now
#' since you can use the more powerful \code{\link[colourpicker]{colourInput}}
#' in Shiny apps and Rmarkdown documents, but this gives you an htmlwidget
#' version of that colour picker.
#'
#' @inheritParams colourInput
#' @param width Custom width for the input field.
#' @param height Custom height for the input field.
#' @param elementId Use an explicit element ID for the widget (rather than an
#' automatically generated one).
#' @import htmlwidgets
#' @examples
#' colourWidget()
#' colourWidget("red", palette = "limited", allowedCols = c("yellow", "red", "#123ABC"))
#'
#' @export
colourWidget <- function(value = "white",
showColour = c("both", "text", "background"),
palette = c("square", "limited"), allowedCols = NULL,
allowTransparent = FALSE, returnName = FALSE,
closeOnClick = FALSE,
width = "300px", height = "35px", elementId = NULL) {
# sanitize the arguments
showColour <- match.arg(showColour)
palette <- match.arg(palette)
# forward options using x
x <- list(
value = value,
showColour = showColour,
palette = palette,
returnName = returnName,
allowAlpha = allowTransparent,
closeOnClick = closeOnClick
)
if (!is.null(allowedCols)) {
allowedCols <- jsonlite::toJSON(allowedCols)
x[['allowedCols']] <- allowedCols
}
deps <- list(
rmarkdown::html_dependency_bootstrap("default")
)
# create widget
htmlwidgets::prependContent(
htmlwidgets::createWidget(
name = 'colourWidget',
x,
width = width,
height = height,
dependencies = deps,
package = 'colourpicker',
elementId = elementId
),
htmltools::tags$style(
".colourpicker-input-container{ display:inline-block; }"
)
)
}
colourWidget_html <- function(id, class, style, ...) {
class <- paste0(class, " form-control")
htmltools::tags$input(id = id, class = class, style = style,
type = "text")
}
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