R/C3LineBarChart.R

In maxmindlin/C3:

#' <Add Title>
#'
#' <Add Description>
#'
#' @import htmlwidgets
#'
#' @export
C3LineBarChart <- function(dataset, colors, type = NULL, subchart = TRUE, x_type = 'category',yMax = NULL, y2Max = NULL, width = NULL, height = NULL) {

  # forward options using x
  x = list(

    # Time series x-axis column must be of name "Date"
    dataset  = dataset,
    # List value assigning column names to color values
    colors = colors,
    dataLen = nrow(dataset),
    yMax = yMax,
    y2Max = y2Max,
    subchart = subchart,
    type = type,
    x_type = x_type

  )

  # create widget
  htmlwidgets::createWidget(
    name = 'C3LineBarChart',
    x,
    width = width,
    height = height,
    package = 'C3'
  )

}

#' Shiny bindings for C3LineBarChart
#'
#' Output and render functions for using C3LineBarChart within Shiny
#' applications and interactive Rmd documents.
#'
#' @param outputId output variable to read from
#' @param width,height Must be a valid CSS unit (like \code{'100\%'},
#'   \code{'400px'}, \code{'auto'}) or a number, which will be coerced to a
#'   string and have \code{'px'} appended.
#' @param expr An expression that generates a C3LineBarChart
#' @param env The environment in which to evaluate \code{expr}.
#' @param quoted Is \code{expr} a quoted expression (with \code{quote()})? This
#'   is useful if you want to save an expression in a variable.
#'
#' @name C3LineBarChart-shiny
#'
#' @export
C3LineBarChartOutput <- function(outputId, width = '100%', height = '400px'){
  htmlwidgets::shinyWidgetOutput(outputId, 'C3LineBarChart', width, height, package = 'C3')
}

#' @rdname C3LineBarChart-shiny
#' @export
renderC3LineBarChart <- function(expr, env = parent.frame(), quoted = FALSE) {
  if (!quoted) { expr <- substitute(expr) } # force quoted
  htmlwidgets::shinyRenderWidget(expr, C3LineBarChartOutput, env, quoted = TRUE)
}