#' Modify the layout of a plotly visualization
#'
#' @param p A plotly object.
#' @param ... Arguments to the layout object. For documentation,
#' see \url{https://plot.ly/r/reference/#Layout_and_layout_style_objects}
#' @param data A data frame to associate with this layout (optional). If not
#' provided, arguments are evaluated using the data frame in \code{\link{plot_ly}()}.
#' @author Carson Sievert
#' @export
layout <- function(p, ..., data = NULL) {
UseMethod("layout")
}
#' @export
layout.matrix <- function(p, ..., data = NULL) {
# workaround for the popular graphics::layout() function
# https://github.com/ropensci/plotly/issues/464
graphics::layout(p, ...)
}
#' @export
layout.shiny.tag.list <- function(p, ..., data = NULL) {
idx <- which(vapply(p, is.plotly, logical(1)))
for (i in idx) {
p[[i]] <- layout.plotly(p[[i]], ..., data = NULL)
}
p
}
#' @export
layout.plotly <- function(p, ..., data = NULL) {
p <- add_data(p, data)
attrs <- list(...)
if (!is.null(attrs[["height"]]) || !is.null(attrs[["width"]])) {
warning("Specifying width/height in layout() is now deprecated.\n",
"Please specify in ggplotly() or plot_ly()", call. = FALSE)
}
# similar to add_trace()
p$x$layoutAttrs <- c(
p$x$layoutAttrs %||% list(),
setNames(list(attrs), p$x$cur_data)
)
p
}
#' Add a range slider to the x-axis
#'
#' @param p plotly object.
#' @param ... these arguments are documented here
#' \url{https://plot.ly/r/reference/#layout-xaxis-rangeslider}
#' @export
#' @author Carson Sievert
#' @examples
#'
#' plot_ly(x = time(USAccDeaths), y = USAccDeaths) %>%
#' add_lines() %>%
#' rangeslider()
#'
rangeslider <- function(p, ...) {
if (sum(grepl("^xaxis", names(p$x$layout))) > 1) {
stop("Can only add a rangeslider to a plot with one x-axis", call. = FALSE)
}
p$x$layout$xaxis$rangeslider <- list(visible = TRUE, ...)
p
}
#' Set the default configuration for plotly
#'
#' @param p a plotly object
#' @param ... these arguments are documented at
#' \url{https://github.com/plotly/plotly.js/blob/master/src/plot_api/plot_config.js}
#' @param collaborate include the collaborate mode bar button (unique to the R pkg)?
#' @param cloud include the send data to cloud button?
#' @author Carson Sievert
#' @export
#' @examples
#'
#' config(plot_ly(), displaylogo = FALSE, collaborate = FALSE)
#'
config <- function(p, ..., collaborate = TRUE, cloud = FALSE) {
p$x$config <- modify_list(p$x$config, list(...))
nms <- sapply(p$x$config[["modeBarButtonsToAdd"]], "[[", "name")
hasCollab <- sharingButton()[["name"]] %in% nms
if (collaborate && !hasCollab) {
nAdd <- length(p$x$config[["modeBarButtonsToAdd"]])
p$x$config[["modeBarButtonsToAdd"]][[nAdd + 1]] <- sharingButton()
}
if (!collaborate) {
p$x$config[["modeBarButtonsToAdd"]][nms %in% sharingButton()[["name"]]] <- NULL
}
hasCloud <- !'sendDataToCloud' %in% p$x$config[["modeBarButtonsToRemove"]]
if (!cloud) {
p$x$config[["modeBarButtonsToRemove"]] <- c(
p$x$config[["modeBarButtonsToRemove"]], 'sendDataToCloud'
)
}
if (cloud) {
b <- p$x$config[["modeBarButtonsToRemove"]]
p$x$config[["modeBarButtonsToRemove"]] <- b[!b %in% 'sendDataToCloud']
}
# ensure array
if (length(p$x$config[["modeBarButtonsToRemove"]]) == 1) {
p$x$config[["modeBarButtonsToRemove"]] <- list(p$x$config[["modeBarButtonsToRemove"]])
}
p
}
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