Barebones for #50

coffee/core.coffee

@@ -769,6 +769,13 @@ checkFileVersion = (forceNow = false) ->
 
 setupServiceWorker = ->
   # http://www.html5rocks.com/en/tutorials/service-worker/introduction/
+  if "serviceworker" of navigator
+    navigator.serviceWorker
+    .register("js/serviceWorker.min.js")
+    .then (registration) ->
+      console.log("ServiceWorker registered with scope", registration.scope)
+    .catch (error) ->
+      console.warn("ServiceWorker registration failed:", error)
   false
 
 

coffee/serviceWorker.coffee

@@ -1,7 +1,23 @@
- ###
- # HTML5 ServiceWorker
- # After
- # https://github.com/SSARHERPS/SSAR-species-database/issues/50
- #
- # Why are we here? Because this gives us some nice bonuses on mobile!
- ###
+###
+# HTML5 ServiceWorker
+# After
+# https://github.com/SSARHERPS/SSAR-species-database/issues/50
+#
+# Why are we here? Because this gives us some nice bonuses on mobile!
+###
+
+cacheName = "ssar_cndb_cache"
+
+urlsToCache = [
+  "js/c.min.js"
+  "css/main.min.css"
+  ]
+
+self.addEventListener "install", (event) ->
+  # Do the install
+  cacheHandler = (cache) ->
+    console.log("Opened cache")
+    cache.addAll(urlsToCache)
+  event.waitUntil caches.open(cacheName).then(cacheHandler(cache))
+  false
+

js/maps/c.src.coffee

@@ -767,6 +767,18 @@ checkFileVersion = (forceNow = false) ->
   false
 
 
+setupServiceWorker = ->
+  # http://www.html5rocks.com/en/tutorials/service-worker/introduction/
+  if "serviceworker" of navigator
+    navigator.serviceWorker
+    .register("js/serviceWorker.min.js")
+    .then (registration) ->
+      console.log("ServiceWorker registered with scope", registration.scope)
+    .catch (error) ->
+      console.warn("ServiceWorker registration failed:", error)
+  false
+
+
 foo = ->
   toastStatusMessage("Sorry, this feature is not yet finished")
   stopLoad()