add core-js shim for React to show up in RStudio Viewer

Author: timelyportfolio

NAMESPACE

@@ -1,5 +1,6 @@
 # Generated by roxygen2: do not edit by hand
 
 export(babel_transform)
+export(html_dependency_corejs)
 export(html_dependency_react)
 importFrom(htmltools,htmlDependency)

R/dependencies.R

@@ -1,5 +1,8 @@
 #' Dependencies for React
 #'
+#' Add JavaScript 'React' dependency.  For this to work in RStudio Viewer, also include
+#' \code{\link{html_dependency_corejs}}.
+#'
 #' @param offline \code{logical} to use local file dependencies.  If \code{FALSE},
 #'          then the dependencies use the Facebook cdn as its \code{src}.
 #'          To use with \code{JSX} see \code{\link{babel_transform}}.
@@ -25,6 +28,8 @@
 #'     )
 #'   "
 #'   ),
+#'    #add core-js first to work in RStudio Viewer
+#'   html_dependency_corejs(),
 #'   html_dependency_react() #offline=FALSE for CDN
 #' )
 html_dependency_react <- function(offline=TRUE){
@@ -46,3 +51,22 @@ html_dependency_react <- function(offline=TRUE){
 
   hd
 }
+
+
+#' Shim Dependency for React in RStudio Viewer
+#'
+#' Add this first for 'React' to work in RStudio Viewer.
+#'
+#' @return \code{\link[htmltools]{htmlDependency}}
+#' @importFrom htmltools htmlDependency
+#' @export
+html_dependency_corejs <- function() {
+  #shim/polyfill for ES5 and ES6 so react will show up in RStudio Viewer
+  #https://unpkg.com/[email protected]/
+  htmltools::htmlDependency(
+    name = "core-js",
+    version = "2.5.3",
+    src = c(file=system.file("www/core-js/", package="reactR")),
+    script = "shim.min.js"
+  )
+}

inst/www/core-js/LICENSE

@@ -0,0 +1,19 @@
+Copyright (c) 2014-2017 Denis Pushkarev
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

inst/www/core-js/package.json

@@ -0,0 +1,72 @@
+{
+  "name": "core-js",
+  "description": "Standard library",
+  "version": "2.5.1",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/zloirock/core-js.git"
+  },
+  "main": "index.js",
+  "devDependencies": {
+    "LiveScript": "1.3.x",
+    "es-observable-tests": "0.2.x",
+    "eslint": "4.14.x",
+    "eslint-plugin-import": "2.8.x",
+    "grunt": "^1.0.1",
+    "grunt-cli": "^1.2.0",
+    "grunt-contrib-clean": "^1.1.0",
+    "grunt-contrib-copy": "^1.0.0",
+    "grunt-contrib-uglify": "3.3.x",
+    "grunt-contrib-watch": "^1.0.0",
+    "grunt-karma": "^2.0.0",
+    "grunt-livescript": "0.6.x",
+    "karma": "^2.0.0",
+    "karma-qunit": "1.2.x",
+    "karma-chrome-launcher": "^2.2.0",
+    "karma-firefox-launcher": "^1.0.1",
+    "karma-ie-launcher": "^1.0.0",
+    "karma-phantomjs-launcher": "1.0.x",
+    "phantomjs-prebuilt": "2.1.x",
+    "promises-aplus-tests": "^2.1.2",
+    "qunitjs": "2.4.x",
+    "temp": "^0.8.3",
+    "webpack": "^3.10.0"
+  },
+  "scripts": {
+    "grunt": "grunt",
+    "lint": "eslint ./",
+    "promises-tests": "promises-aplus-tests tests/promises-aplus/adapter",
+    "observables-tests": "node tests/observables/adapter && node tests/observables/adapter-library",
+    "test": "npm run grunt clean copy && npm run lint && npm run grunt livescript client karma:default && npm run grunt library karma:library && npm run promises-tests && npm run observables-tests && lsc tests/commonjs"
+  },
+  "license": "MIT",
+  "keywords": [
+    "ES3",
+    "ES5",
+    "ES6",
+    "ES7",
+    "ES2015",
+    "ES2016",
+    "ES2017",
+    "ECMAScript 3",
+    "ECMAScript 5",
+    "ECMAScript 6",
+    "ECMAScript 7",
+    "ECMAScript 2015",
+    "ECMAScript 2016",
+    "ECMAScript 2017",
+    "Harmony",
+    "Strawman",
+    "Map",
+    "Set",
+    "WeakMap",
+    "WeakSet",
+    "Promise",
+    "Symbol",
+    "TypedArray",
+    "setImmediate",
+    "Dict",
+    "polyfill",
+    "shim"
+  ]
+}