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#' Network visualization collapse / uncollapsed method
#'
#'@param graph : a \code{\link{visNetworkProxy}} object
#'@param nodes : a vector of nodes id. NULL for \code{visUncollapse} for open all collapsed nodes
#'@param fit : Optional. Boolean. Default to FALSE. Call fit method after collapse/uncollapse event ?
#'@param resetHighlight : Optional. Boolean. Default to TRUE to reset highlighted nodes after collapse/uncollapse event.
#'@param keepCoord : Optional. Boolean. Default to TRUE to keep nodes coordinates on collapse
#'@param clusterOptions : Optional. List. Default to NULL. A list of all options you want to pass to cluster collapsed node
#'@param labelSuffix : Optional. Character. Use node label + suffix or just suffix. Default to '(cluster)'
#'
#'@seealso \link{visNodes} for nodes options, \link{visEdges} for edges options, \link{visGroups} for groups options,
#'\link{visLegend} for adding legend, \link{visOptions} for custom option, \link{visLayout} & \link{visHierarchicalLayout} for layout,
#'\link{visPhysics} for control physics, \link{visInteraction} for interaction, \link{visNetworkProxy} & \link{visFocus} & \link{visFit} for animation within shiny,
#'\link{visDocumentation}, \link{visEvents}, \link{visConfigure} ...
#'
#' @examples
#'\dontrun{
#'
#'# have a look to :
#'
#'shiny::runApp(system.file("shiny", package = "visNetwork"))
#'
#'# You can also disable / enabled the double-click event opening cluster
#'visNetworkProxy("network_id") %>% visEvents(type = "off", doubleClick = "networkOpenCluster")
#'visNetworkProxy("network_id") %>% visEvents(type = "on", doubleClick = "networkOpenCluster")
#'
#'}
#'
#'@export
#'@references See online documentation \url{https://datastorm-open.github.io/visNetwork/}
#'@name visNetwork-collapse
#'
visCollapse <- function(graph, nodes, fit = FALSE, resetHighlight = TRUE,
clusterOptions = NULL, labelSuffix = "(cluster)"){
if(!any(class(graph) %in% "visNetwork_Proxy")){
stop("Can't use visCollapse with visNetwork object. Only within shiny & using visNetworkProxy")
}
if(length(nodes) == 1){
nodes <- list(nodes)
}
data <- list(id = graph$id, nodes = nodes, fit = fit,
resetHighlight = resetHighlight, labelSuffix = labelSuffix)
data$clusterOptions <- clusterOptions
graph$session$sendCustomMessage("visShinyCollapse", data)
graph
}
#' @name visNetwork-collapse
#'
#' @export
visUncollapse <- function(graph, nodes = NULL, fit = FALSE, resetHighlight = TRUE, keepCoord = TRUE){
if(!any(class(graph) %in% "visNetwork_Proxy")){
stop("Can't use visUncollapse with visNetwork object. Only within shiny & using visNetworkProxy")
}
data <- list(id = graph$id, fit = fit, resetHighlight = resetHighlight, keepCoord = keepCoord)
if(!is.null(nodes)){
if(length(nodes) == 1){
nodes <- list(nodes)
}
}
data$nodes <- nodes
graph$session$sendCustomMessage("visShinyUncollapse", data)
graph
}
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