#' <Add Title>
#'
#' <Add Description>
#'
#' @import htmlwidgets
#'
#' @export
FirstWidget <- function(message, width = NULL, height = NULL, elementId = NULL) {
# forward options using params
params = list(
message = message
)
# create widget
Widget <- htmlwidgets::createWidget(
name = 'FirstWidget',
params,
width = width,
height = height,
package = 'two.laws.html.widgets',
elementId = elementId
)
# Add 'FirstWidget' to the class list of this widget at the last but one position
numClasses <- length(class(Widget))
class(Widget) <- c(class(Widget)[1:(numClasses-1)],
'FirstWidget', class(Widget)[[numClasses]])
return(Widget)
}
#' Shiny bindings for FirstWidget
#'
#' Output and render functions for using FirstWidget 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 FirstWidget
#' @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 FirstWidget-shiny
#'
#' @export
FirstWidgetOutput <- function(outputId, width = '100%', height = '400px'){
htmlwidgets::shinyWidgetOutput(outputId, 'FirstWidget', width, height, package = 'two.laws.html.widgets')
}
#' @rdname FirstWidget-shiny
#' @export
renderFirstWidget <- function(expr, env = parent.frame(), quoted = FALSE) {
if (!quoted) { expr <- substitute(expr) } # force quoted
htmlwidgets::shinyRenderWidget(expr, FirstWidgetOutput, env, quoted = TRUE)
}
# TODO:
# consider overriding print
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