mirror of
https://github.com/rstudio/shiny.git
synced 2026-02-08 21:55:02 -05:00
480 lines
15 KiB
R
480 lines
15 KiB
R
is_installed <- function(package, version) {
|
|
installedVersion <- tryCatch(utils::packageVersion(package), error = function(e) NA)
|
|
!is.na(installedVersion) && installedVersion >= version
|
|
}
|
|
|
|
# Check that the version of an suggested package satisfies the requirements
|
|
#
|
|
# @param package The name of the suggested package
|
|
# @param version The version of the package
|
|
check_suggested <- function(package, version, location) {
|
|
|
|
if (!is_installed(package, version)) {
|
|
missing_location <- missing(location)
|
|
msg <- paste0(
|
|
sQuote(package),
|
|
if (is.na(version)) "" else paste0("(>= ", version, ")"),
|
|
" must be installed for this functionality.",
|
|
if (!missing_location)
|
|
paste0(
|
|
"\nPlease install the missing package: \n",
|
|
" source(\"https://install-github.me/", location, "\")"
|
|
)
|
|
)
|
|
|
|
if (interactive() && missing_location) {
|
|
message(msg, "\nWould you like to install it?")
|
|
if (utils::menu(c("Yes", "No")) == 1) {
|
|
utils::install.packages(package)
|
|
} else {
|
|
stop(msg, call. = FALSE)
|
|
}
|
|
} else {
|
|
stop(msg, call. = FALSE)
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
# domain is like session
|
|
|
|
|
|
# used to help define truly global react id's.
|
|
# should work across session and in global namespace
|
|
.globals$reactIdCounter <- 0L
|
|
nextGlobalReactId <- function() {
|
|
.globals$reactIdCounter <- .globals$reactIdCounter + 1L
|
|
paste0("r", .globals$reactIdCounter)
|
|
}
|
|
|
|
|
|
#' Reactive Log Visualizer
|
|
#'
|
|
#' Provides an interactive browser-based tool for visualizing reactive
|
|
#' dependencies and execution in your application.
|
|
#'
|
|
#' To use the reactive log visualizer, start with a fresh R session and
|
|
#' run the command \code{options(shiny.reactlog=TRUE)}; then launch your
|
|
#' application in the usual way (e.g. using \code{\link{runApp}}). At
|
|
#' any time you can hit Ctrl+F3 (or for Mac users, Command+F3) in your
|
|
#' web browser to launch the reactive log visualization.
|
|
#'
|
|
#' The reactive log visualization only includes reactive activity up
|
|
#' until the time the report was loaded. If you want to see more recent
|
|
#' activity, refresh the browser.
|
|
#'
|
|
#' Note that Shiny does not distinguish between reactive dependencies
|
|
#' that "belong" to one Shiny user session versus another, so the
|
|
#' visualization will include all reactive activity that has taken place
|
|
#' in the process, not just for a particular application or session.
|
|
#'
|
|
#' As an alternative to pressing Ctrl/Command+F3--for example, if you
|
|
#' are using reactives outside of the context of a Shiny
|
|
#' application--you can run the \code{showReactLog} function, which will
|
|
#' generate the reactive log visualization as a static HTML file and
|
|
#' launch it in your default browser. In this case, refreshing your
|
|
#' browser will not load new activity into the report; you will need to
|
|
#' call \code{showReactLog()} explicitly.
|
|
#'
|
|
#' For security and performance reasons, do not enable
|
|
#' \code{shiny.reactlog} in production environments. When the option is
|
|
#' enabled, it's possible for any user of your app to see at least some
|
|
#' of the source code of your reactive expressions and observers.
|
|
#'
|
|
#' @param time A boolean that specifies whether or not to display the
|
|
#' time that each reactive.
|
|
#' @export
|
|
showReactLog <- function(time = TRUE) {
|
|
check_reactlog()
|
|
reactlog::show_reactlog(rLog$asList(), time = time)
|
|
}
|
|
# called in "/reactlog" middleware
|
|
renderReactlog <- function(sessionToken = NULL, time = TRUE) {
|
|
check_reactlog()
|
|
reactlog::render_reactlog(
|
|
rLog$asList(),
|
|
session_token = sessionToken,
|
|
time = time
|
|
)
|
|
}
|
|
check_reactlog <- function() {
|
|
check_suggested("reactlog", "0.0.0.9000", "rstudio/reactlog")
|
|
}
|
|
|
|
|
|
RLog <- R6Class(
|
|
"RLog",
|
|
portable = FALSE,
|
|
private = list(
|
|
option = "shiny.reactlog",
|
|
|
|
appendEntry = function(domain, logEntry) {
|
|
if (self$isLogging()) {
|
|
sessionToken <- if (is.null(domain)) NULL else domain$token
|
|
logStack$push(c(logEntry, list(
|
|
session = sessionToken,
|
|
time = as.numeric(Sys.time())
|
|
)))
|
|
}
|
|
if (!is.null(domain)) domain$reactlog(logEntry)
|
|
}
|
|
),
|
|
public = list(
|
|
msg = "<MessageLogger>",
|
|
logStack = "<Stack>",
|
|
|
|
asList = function() {
|
|
ret <- self$logStack$as_list()
|
|
attr(ret, "version") <- "1"
|
|
ret
|
|
},
|
|
|
|
ctxIdStr = function(ctxId) {
|
|
if (is.null(ctxId) || identical(ctxId, "")) return(NULL)
|
|
paste0("ctx", ctxId)
|
|
},
|
|
namesIdStr = function(reactId) {
|
|
paste0("names(", reactId, ")"),
|
|
},
|
|
asListIdStr = function(reactId) {
|
|
paste0("as.list(", reactId, ")")
|
|
}
|
|
asListAllIdStr = function(reactId) {
|
|
paste0("as.list(", reactId, ", all.names = TRUE)")
|
|
},
|
|
keyIdStr = function(reactId, key) {
|
|
paste0(reactId, "$", key)
|
|
},
|
|
|
|
|
|
|
|
initialize = function(rlogOption = "shiny.reactlog", msgOption = "shiny.reactlog.console") {
|
|
private$option <- rlogOption
|
|
self$logStack <- Stack$new()
|
|
self$msg <- MessageLogger$new(option = msgOption)
|
|
},
|
|
isLogging = function() {
|
|
isTRUE(getOption(private$option, FALSE))
|
|
},
|
|
|
|
define = function(reactId, label, type, domain) {
|
|
if (msg$hasReact(reactId)) {
|
|
stop("react definition for id: ", reactId, " already found!!", "Label: ", label, "Type: ", type)
|
|
}
|
|
msg$setReact(list(reactId = reactId, label = label))
|
|
msg$log("define: ", msg$reactStr(reactId), " - ", type)
|
|
private$appendEntry(domain, list(
|
|
action = "define",
|
|
reactId = reactId,
|
|
label = label,
|
|
type = type
|
|
))
|
|
},
|
|
defineNames = function(reactId, label, domain) {
|
|
self$define(self$namesIdStr(reactId), self$namesIdStr(label), "reactiveValuesNames", domain)
|
|
},
|
|
defineAsList = function(reactId, label, domain) {
|
|
self$define(self$asListIdStr(reactId), self$asListIdStr(label), "reactiveValuesAsList", domain)
|
|
},
|
|
defineAsListAll = function(reactId, label, domain) {
|
|
self$define(self$asListAllIdStr(reactId), self$asListAllIdStr(label), "reactiveValuesAsListAll", domain)
|
|
},
|
|
defineKey = function(reactId, key, label, domain) {
|
|
self$define(self$keyIdStr(reactId, key), self$keyIdStr(label, key), "reactiveValuesKey", domain)
|
|
},
|
|
|
|
updateReactLabel = function(reactId, label, domain) {
|
|
msgObj <- msg$getReact(reactId)
|
|
if (!is.null(msgObj)) {
|
|
msgObj$label <- label
|
|
msg$setReact(msgObj)
|
|
}
|
|
msg$log("updateLabel: ", msg$reactStr(reactId))
|
|
private$appendEntry(domain, list(
|
|
action = "updateLabel",
|
|
reactId = reactId,
|
|
label = label
|
|
))
|
|
},
|
|
updateReactLabelNames = function(reactId, label, domain) {
|
|
self$updateReactLabel(self$namesIdStr(reactId), self$namesIdStr(label), domain)
|
|
},
|
|
updateReactLabelAsList = function(reactId, label, domain) {
|
|
self$updateReactLabel(self$asListIdStr(reactId), self$asListIdStr(label), domain)
|
|
},
|
|
updateReactLabelAsListAll = function(reactId, label, domain) {
|
|
self$updateReactLabel(self$asListAllIdStr(reactId), self$asListAllIdStr(label), domain)
|
|
},
|
|
updateReactLabelKey = function(reactId, key, label, domain) {
|
|
self$updateReactLabel(self$keyIdStr(reactId, key), self$keyIdStr(label, key), domain)
|
|
},
|
|
|
|
dependsOn = function(reactId, depOnReactId, ctxId, domain) {
|
|
if (is.null(reactId)) return()
|
|
ctxId <- ctxIdStr(ctxId)
|
|
msg$log("dependsOn: ", msg$reactStr(reactId), " on ", msg$reactStr(depOnReactId), " in ", ctxId)
|
|
private$appendEntry(domain, list(
|
|
action = "dependsOn",
|
|
reactId = reactId,
|
|
depOnReactId = depOnReactId,
|
|
ctxId = ctxId
|
|
))
|
|
},
|
|
dependsOnKey = function(reactId, depOnReactId, key, ctxId, domain) {
|
|
self$dependsOn(reactId, self$keyIdStr(depOnReactId, key), ctxId, domain)
|
|
},
|
|
|
|
dependsOnRemove = function(reactId, depOnReactId, ctxId, domain) {
|
|
ctxId <- self$ctxIdStr(ctxId)
|
|
msg$log("dependsOnRemove: ", msg$reactStr(reactId), " on ", msg$reactStr(depOnReactId), " in ", ctxId)
|
|
private$appendEntry(domain, list(
|
|
action = "dependsOnRemove",
|
|
reactId = reactId,
|
|
depOnReactId = depOnReactId,
|
|
ctxId = ctxId
|
|
))
|
|
},
|
|
dependsOnKeyRemove = function(reactId, depOnReactId, key, ctxId, domain) {
|
|
self$dependsOnRemove(reactId, self$keyIdStr(depOnReactId, key), ctxId, domain)
|
|
},
|
|
|
|
createContext = function(ctxId, label, type, prevCtxId, domain) {
|
|
ctxId <- self$ctxIdStr(ctxId)
|
|
prevCtxId <- self$ctxIdStr(prevCtxId)
|
|
msg$log("createContext: ", ctxId, if (!is.null(prevCtxId)) paste0(" from ", prevCtxId), " - ", type)
|
|
private$appendEntry(domain, list(
|
|
action = "createContext",
|
|
ctxId = ctxId,
|
|
label = label,
|
|
type = type,
|
|
prevCtxId = prevCtxId,
|
|
srcref = as.vector(attr(label, "srcref")), srcfile=attr(label, "srcfile")
|
|
))
|
|
},
|
|
|
|
enter = function(reactId, ctxId, type, domain) {
|
|
ctxId <- self$ctxIdStr(ctxId)
|
|
if (identical(type, "isolate")) {
|
|
msg$log("isolateEnter: ", msg$reactStr(reactId), " in ", ctxId)
|
|
msg$depthIncrement()
|
|
private$appendEntry(domain, list(
|
|
action = "isolateEnter",
|
|
reactId = reactId,
|
|
ctxId = ctxId
|
|
))
|
|
} else {
|
|
msg$log("enter: ", msg$reactStr(reactId), " in ", ctxId, " - ", type)
|
|
msg$depthIncrement()
|
|
private$appendEntry(domain, list(
|
|
action = "enter",
|
|
reactId = reactId,
|
|
ctxId = ctxId,
|
|
type = type
|
|
))
|
|
}
|
|
},
|
|
exit = function(reactId, ctxId, type, domain) {
|
|
ctxId <- self$ctxIdStr(ctxId)
|
|
if (identical(type, "isolate")) {
|
|
msg$depthDecrement()
|
|
msg$log("isolateExit: ", msg$reactStr(reactId), " in ", ctxId)
|
|
private$appendEntry(domain, list(
|
|
action = "isolateExit",
|
|
reactId = reactId,
|
|
ctxId = ctxId
|
|
))
|
|
} else {
|
|
msg$depthDecrement()
|
|
msg$log("exit: ", msg$reactStr(reactId), " in ", ctxId, " - ", type)
|
|
private$appendEntry(domain, list(
|
|
action = "exit",
|
|
reactId = reactId,
|
|
ctxId = ctxId,
|
|
type = type
|
|
))
|
|
}
|
|
},
|
|
|
|
valueChange = function(reactId, value, display, domain) {
|
|
valueStr <- paste(utils::capture.output(utils::str(value)), collapse="\n")
|
|
if (isTRUE(display)) {
|
|
msg$log("valueChange: ", msg$reactStr(reactId), " '", valueStr, "'")
|
|
} else {
|
|
msg$log("valueChange: ", msg$reactStr(reactId))
|
|
}
|
|
private$appendEntry(domain, list(
|
|
action = "valueChange",
|
|
reactId = reactId,
|
|
value = valueStr
|
|
))
|
|
},
|
|
valueChangeNames = function(reactId, nameValues, domain) {
|
|
self$valueChange(self$namesIdStr(reactId), nameValues, FALSE, domain)
|
|
},
|
|
valueChangeAsList = function(reactId, listValue, domain) {
|
|
self$valueChange(self$asListIdStr(reactId), listValue, FALSE, domain)
|
|
},
|
|
valueChangeAsListAll = function(reactId, listValue, domain) {
|
|
self$valueChange(self$asListAllIdStr(reactId), listValue, FALSE, domain)
|
|
},
|
|
valueChangeKey = function(reactId, key, value, domain) {
|
|
self$valueChange(self$keyIdStr(reactId, key), value, FALSE, domain)
|
|
},
|
|
|
|
|
|
invalidateStart = function(reactId, ctxId, type, domain) {
|
|
ctxId <- self$ctxIdStr(ctxId)
|
|
if (identical(type, "isolate")) {
|
|
msg$log("isolateInvalidateStart: ", msg$reactStr(reactId), " in ", ctxId)
|
|
msg$depthIncrement()
|
|
private$appendEntry(domain, list(
|
|
action = "isolateInvalidateStart",
|
|
reactId = reactId,
|
|
ctxId = ctxId
|
|
))
|
|
} else {
|
|
msg$log("invalidateStart", ": ", msg$reactStr(reactId), " in ", ctxId, " - ", type)
|
|
msg$depthIncrement()
|
|
private$appendEntry(domain, list(
|
|
action = "invalidateStart",
|
|
reactId = reactId,
|
|
ctxId = ctxId,
|
|
type = type
|
|
))
|
|
}
|
|
},
|
|
invalidateEnd = function(reactId, ctxId, type, domain) {
|
|
ctxId <- self$ctxIdStr(ctxId)
|
|
if (identical(type, "isolate")) {
|
|
msg$depthDecrement()
|
|
msg$log("isolateInvalidateEnd: ", msg$reactStr(reactId), " in ", ctxId)
|
|
private$appendEntry(domain, list(
|
|
action = "isolateInvalidateEnd",
|
|
reactId = reactId,
|
|
ctxId = ctxId
|
|
))
|
|
} else {
|
|
msg$depthDecrement()
|
|
msg$log("invalidateEnd: ", msg$reactStr(reactId), " in ", ctxId, " - ", type)
|
|
private$appendEntry(domain, list(
|
|
action = "invalidateEnd",
|
|
reactId = reactId,
|
|
ctxId = ctxId,
|
|
type = type
|
|
))
|
|
}
|
|
},
|
|
|
|
idle = function(domain = NULL) {
|
|
msg$log("idle")
|
|
private$appendEntry(domain, list(
|
|
action = "idle"
|
|
))
|
|
},
|
|
|
|
asyncStart = function(domain = NULL) {
|
|
msg$log("asyncStart")
|
|
private$appendEntry(domain, list(
|
|
action = "asyncStart"
|
|
))
|
|
},
|
|
asyncStop = function(domain = NULL) {
|
|
msg$log("asyncStop")
|
|
private$appendEntry(domain, list(
|
|
action = "asyncStop"
|
|
))
|
|
},
|
|
|
|
freezeReactiveVal = function(reactId, domain) {
|
|
msg$log("freeze: ", msg$reactStr(reactId))
|
|
private$appendEntry(domain, list(
|
|
action = "freeze",
|
|
reactId = reactId
|
|
))
|
|
},
|
|
freezeReactiveKey = function(reactId, key, domain) {
|
|
self$freezeReactiveVal(self$keyIdStr(reactId, key), domain)
|
|
},
|
|
|
|
thawReactiveVal = function(reactId, domain) {
|
|
msg$log("thaw: ", msg$reactStr(reactId))
|
|
private$appendEntry(domain, list(
|
|
action = "thaw",
|
|
reactId = reactId
|
|
))
|
|
},
|
|
thawReactiveKey = function(reactId, key, domain) {
|
|
self$thawReactiveVal(self$keyIdStr(reactId, key), domain)
|
|
},
|
|
|
|
userMark = function(domain = NULL) {
|
|
msg$log("userMark")
|
|
private$appendEntry(domain, list(
|
|
action = "userMark"
|
|
))
|
|
}
|
|
|
|
)
|
|
)
|
|
|
|
MessageLogger = R6Class(
|
|
"MessageLogger",
|
|
portable = FALSE,
|
|
public = list(
|
|
depth = 0L,
|
|
reactCache = list("rNoCtx" = list(label = "<UNKNOWN>", reactId = "<UNKNOWN>")),
|
|
option = "shiny.reactlog.console",
|
|
|
|
initialize = function(option = "shiny.reactlog.console", depth = 0L) {
|
|
if (!missing(depth)) self$depth <- depth
|
|
if (!missing(option)) self$option <- option
|
|
},
|
|
isLogging = function() {
|
|
isTRUE(getOption(self$option))
|
|
},
|
|
isNotLogging = function() {
|
|
! isTRUE(getOption(self$option))
|
|
},
|
|
depthIncrement = function() {
|
|
if (self$isNotLogging()) return(NULL)
|
|
self$depth <- self$depth + 1L
|
|
},
|
|
depthDecrement = function() {
|
|
if (self$isNotLogging()) return(NULL)
|
|
self$depth <- self$depth - 1L
|
|
},
|
|
hasReact = function(reactId) {
|
|
if (self$isNotLogging()) return(FALSE)
|
|
!is.null(self$getReact(reactId))
|
|
},
|
|
getReact = function(reactId) {
|
|
if (self$isNotLogging()) return(NULL)
|
|
self$reactCache[[reactId]]
|
|
},
|
|
setReact = function(reactObj) {
|
|
if (self$isNotLogging()) return(NULL)
|
|
self$reactCache[[reactObj$reactId]] <- reactObj
|
|
},
|
|
reactStr = function(reactId) {
|
|
if (self$isNotLogging()) return(NULL)
|
|
reactInfo <- self$getReact(reactId)
|
|
paste0(
|
|
reactInfo$reactId, ":", reactInfo$label
|
|
)
|
|
},
|
|
log = function(...) {
|
|
if (self$isNotLogging()) return(NULL)
|
|
msg <- paste0(
|
|
paste0(rep("= ", depth), collapse = ""), "- ", paste0(..., collapse = ""),
|
|
collapse = ""
|
|
)
|
|
message(msg)
|
|
}
|
|
)
|
|
)
|
|
|
|
#' @include stack.R
|
|
rLog <- RLog$new("shiny.reactlog", "shiny.reactlog.console")
|