Merge pull request #636 from leslie-huang/leafletproviders

Use leaflet.providers package

DESCRIPTION

@@ -50,7 +50,8 @@ Imports:
     scales (>= 1.0.0),
     sp,
     stats,
-    viridis (>= 0.5.1)
+    viridis (>= 0.5.1),
+    leaflet.providers (>= 1.8.0)
 Suggests:
     knitr,
     maps,

NAMESPACE

@@ -138,6 +138,8 @@ export(popupOptions)
 export(previewColors)
 export(projectRasterForLeaflet)
 export(providerTileOptions)
+export(providers)
+export(providers.details)
 export(removeControl)
 export(removeGeoJSON)
 export(removeImage)

NEWS

@@ -1,7 +1,11 @@
 leaflet 2.0.3
 --------------------------------------------------------------------------------
 
+BREAKING CHANGES
+* `data("providers")` and `data("providers.details")` no longer exist. Please use `leaflet::providers` and `leaflet::providers.details`. (#636)
+
 BUG FIXES and IMPROVEMENTS
+* Integrated data from `leaflet.providers` package. See [leaflet.providers](https://rstudio.github.io/leaflet.providers/) for details. (#636)
 * Fixed [rstudio/crosstalk#58](https://github.com/rstudio/crosstalk/issues/58), which caused Leaflet maps that used Crosstalk shared data in Shiny apps, to be redrawn at incorrect times.
 * invokeRemote() now resolves html dependencies before passing them to shiny::createWebDependency() (#620).
 * Upgrade leaflet-provider to 1.4.0, enable more map variants such as CartoDB.Voyager (#567)

R/plugin-minimap.R

@@ -88,7 +88,7 @@ addMiniMap <- function(
   tilesURL <- NULL
   tilesProvider <- NULL
  if (!is.null(tiles)) {
-   if (tiles %in% leaflet::providers) {
+   if (tiles %in% providers) {
       map$dependencies <- c(map$dependencies, leafletProviderDependencies())
       tilesProvider <- tiles
     } else {

R/plugin-providers.R

@@ -1,11 +1,6 @@
 leafletProviderDependencies <- function() {
   list(
-    htmltools::htmlDependency(
-      "leaflet-providers",
-      "1.1.17",
-      system.file("htmlwidgets/lib/leaflet-providers", package = "leaflet"),
-      script = "leaflet-providers.js"
-    ),
+    get_providers_html_dependency(),
     htmltools::htmlDependency(
       "leaflet-providers-plugin",
       packageVersion("leaflet"),
@@ -72,12 +67,40 @@ providerTileOptions <- function(errorTileUrl = "", noWrap = FALSE,
 #'
 #' @format A list of characters
 #' @source \url{https://github.com/leaflet-extras/leaflet-providers/blob/master/leaflet-providers.js}
+#'
+#' @name providers
+#' @export providers
+#' @rdname providers
+NULL
+# Active binding added in zzz.R
 "providers"
 
-#' Providers Details
-#'
-#' List of all providers with their variations and additional info
-#'
-#' @format A list of lists (JSON)
-#' @source \url{https://github.com/leaflet-extras/leaflet-providers/blob/master/leaflet-providers.js}
+#' @name providers.details
+#' @export providers.details
+#' @rdname providers
+NULL
+# Active binding added in zzz.R
 "providers.details"
+
+# Active binding added in zzz.R
+"providers.version_num"
+
+# Active binding added in zzz.R
+"providers.src"
+
+get_providers_html_dependency <- function() {
+  tmpfile <- file.path(tempdir(), paste0("leaflet-providers_", providers.version_num, ".js"))
+
+  if (!file.exists(tmpfile)) {
+    src <- providers.src
+    writeLines(src, tmpfile)
+  }
+
+  htmltools::htmlDependency(
+    "leaflet-providers",
+    providers.version_num,
+    src = dirname(tmpfile),
+    script = basename(tmpfile),
+    all_files = FALSE
+  )
+}

R/zzz.R

@@ -0,0 +1,18 @@
+leaflet_envir <- environment()
+.onLoad <- function(...) {
+  makeActiveBinding("providers", function() {
+    leaflet.providers::providers_loaded()$providers
+  }, env = leaflet_envir)
+
+  makeActiveBinding("providers.details", function() {
+    leaflet.providers::providers_loaded()$providers_details
+  }, env = leaflet_envir)
+
+  makeActiveBinding("providers.version_num", function() {
+    leaflet.providers::providers_loaded()$version_num
+  }, env = leaflet_envir)
+
+  makeActiveBinding("providers.src", function() {
+    leaflet.providers::providers_loaded()$src
+  }, env = leaflet_envir)
+}