If shinyAppFile is used, store the filename and use it in the showcase's app file discovery logic

Author: cpsievert

R/app.R

@@ -136,7 +136,8 @@ shinyAppFile <- function(appFile, options=list()) {
   appFile <- normalizePath(appFile, mustWork = TRUE)
   appDir <- dirname(appFile)
 
-  shinyAppDir_appR(basename(appFile), appDir, options = options)
+  .globals$appFile <- basename(appFile)
+  shinyAppDir_appR(.globals$appFile, appDir, options = options)
 }
 
 # This reads in an app dir in the case that there's a server.R (and ui.R/www)

R/showcase.R

@@ -81,7 +81,7 @@ appMetadata <- function(desc) {
 navTabsHelper <- function(files, prefix = "") {
   lapply(files, function(file) {
     with(tags,
-      li(class=if (tolower(file) %in% c("app.r", "server.r")) "active" else "",
+      li(class=if (tolower(file) %in% c("app.r", "server.r", tolower(.globals$appFile))) "active" else "",
          a(href=paste0("#", gsub("\\.|\\s+", "_", file), "_code"),
            "data-toggle"="tab", paste0(prefix, file)))
     )
@@ -106,8 +106,7 @@ tabContentHelper <- function(files, path, language) {
   lapply(files, function(file) {
     with(tags,
       div(class=paste0("tab-pane",
-                      # TODO: what if the app filename is something else?
-                      if (tolower(file) %in% c("app.r", "server.r")) " active"
+                      if (tolower(file) %in% c("app.r", "server.r", tolower(.globals$appFile))) " active"
                       else ""),
           id=paste0(gsub("\\.|\\s+", "_", file), "_code"),
           pre(class="shiny-code",