1 files changed, 44 insertions, 0 deletions
diff --git a/browser/components/newtab/lib/PersonalityProvider/PersonalityProviderWorker.js b/browser/components/newtab/lib/PersonalityProvider/PersonalityProviderWorker.js
new file mode 100644
index 0000000000..3ed118857e
--- /dev/null
+++ b/browser/components/newtab/lib/PersonalityProvider/PersonalityProviderWorker.js
@@ -0,0 +1,44 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* eslint-env mozilla/chrome-worker */
+
+"use strict";
+
+// Order of these are important.
+/* import-globals-from /toolkit/components/workerloader/require.js */
+/* import-globals-from Tokenize.jsm */
+/* import-globals-from NaiveBayesTextTagger.jsm */
+/* import-globals-from NmfTextTagger.jsm */
+/* import-globals-from RecipeExecutor.jsm */
+/* import-globals-from PersonalityProviderWorkerClass.jsm */
+importScripts(
+  "resource://gre/modules/workers/require.js",
+  "resource://activity-stream/lib/PersonalityProvider/Tokenize.jsm",
+  "resource://activity-stream/lib/PersonalityProvider/NaiveBayesTextTagger.jsm",
+  "resource://activity-stream/lib/PersonalityProvider/NmfTextTagger.jsm",
+  "resource://activity-stream/lib/PersonalityProvider/RecipeExecutor.jsm",
+  "resource://activity-stream/lib/PersonalityProvider/PersonalityProviderWorkerClass.jsm"
+);
+
+const PromiseWorker = require("resource://gre/modules/workers/PromiseWorker.js");
+
+const personalityProviderWorker = new PersonalityProviderWorker();
+
+// This is boiler plate worker stuff that connects it to the main thread PromiseWorker.
+const worker = new PromiseWorker.AbstractWorker();
+worker.dispatch = function (method, args = []) {
+  return personalityProviderWorker[method](...args);
+};
+worker.postMessage = function (message, ...transfers) {
+  self.postMessage(message, ...transfers);
+};
+worker.close = function () {
+  self.close();
+};
+
+self.addEventListener("message", msg => worker.handleMessage(msg));
+self.addEventListener("unhandledrejection", function (error) {
+  throw error.reason;
+});