Worker onmessage / onconnect methods should be declared in barren glo…

…bal scope. Implemented both SharedWorker and Worker interfaces.

rawdeflate.js

@@ -6,12 +6,7 @@
  */
 
 // if run as a web worker, respond to messages by deflating them
-var onconnect = function(e) {
-  var port = e.ports[0];
-  port.onmessage = function(m) {
-    port.postMessage(deflate(m.data, 9));
-  };
-}, deflate = (function() {
+var deflate = (function() {
 
 /* Copyright (C) 1999 Masanao Izumo <iz@onicos.co.jp>
  * Version: 1.0.1
@@ -1671,3 +1666,14 @@ return function deflate(str, level) {
 };
 
 })();
+
+onmessage = function worker(m) {
+  postMessage(deflate(m.data, 9));
+};
+
+onconnect = function sharedWorker(e) {
+  var port = e.ports[0];
+  port.onmessage = function(m) {
+    port.postMessage(deflate(m.data, 9));
+  };
+};

test.html

@@ -17,10 +17,13 @@
   decode: function(s) { return atob(s); }
 };
 
-var shared_deflater = window.SharedWorker && new SharedWorker('rawdeflate.js');
-if (shared_deflater) {
-  shared_deflater.port.addEventListener('message', done_deflating, false);
-  shared_deflater.port.start();
+var deflater = window.SharedWorker && new SharedWorker('rawdeflate.js');
+if (deflater) {
+  deflater.port.addEventListener('message', done_deflating, false);
+  deflater.port.start();
+} else if (window.Worker) {
+  deflater = new Worker('rawdeflate.js');
+  deflater.onmessage = done_deflating;
 }
 
 var t0;
@@ -34,8 +37,12 @@
   s = UTF8.encode(s);
 
   t0 = new Date;
-  if (shared_deflater) {
-    shared_deflater.port.postMessage(s);
+  if (deflater) {
+    if (deflater.port && deflater.port.postMessage) {
+      deflater.port.postMessage(s);
+    } else {
+      deflater.postMessage(s);
+    }
   } else {
     setTimeout(function() {
       done_deflating({ data: deflate(s) });