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gaia/apps/email/js/ext/main-frame-setup.js

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+/**
+ * The startup process (which can be improved) looks like this:
+ *
+ * Main: Initializes worker support logic
+ * Main: Spawns worker
+ * Worker: Loads core JS
+ * Worker: 'hello' => main
+ * Main: 'hello' => worker with online status and mozAlarms status
+ * Worker: Creates MailUniverse
+ * Worker 'mailbridge'.'hello' => main
+ * Main: Creates MailAPI, sends event to UI
+ * UI: can really do stuff
+ *
+ * Note: this file is not currently used by the GELAM unit tests;
+ * mailapi/testhelper.js (in the worker) and
+ * mailapi/worker-support/testhelper-main.js establish the (bounced) bridge.
+ **/
+
+// Install super-simple shims here.
+window.setZeroTimeout = function(fn) {
+  setTimeout(function() { fn(); }, 0);
+};
+
+define(
+  [
+    // Pretty much everything could be dynamically loaded after we kickoff the
+    // worker thread.  We just would need to be sure to latch any received
+    // messages that we receive before we finish setup.
+    './mailapi',
+    './worker-support/main-router',
+    './worker-support/configparser-main',
+    './worker-support/cronsync-main',
+    './worker-support/devicestorage-main',
+    './worker-support/maildb-main',
+    './worker-support/net-main',
+    './worker-support/wakelocks-main',
+    'require'
+  ],
+  function(
+    $mailapi,
+    $router,
+    $configparser,
+    $cronsync,
+    $devicestorage,
+    $maildb,
+    $net,
+    $wakelocks,
+    require
+  ) {
+
+  var control = {
+    name: 'control',
+    sendMessage: null,
+    process: function(uid, cmd, args) {
+      var online = navigator.onLine;
+      control.sendMessage(uid, 'hello', [online]);
+
+      window.addEventListener('online', function(evt) {
+        control.sendMessage(uid, evt.type, [true]);
+      });
+      window.addEventListener('offline', function(evt) {
+        control.sendMessage(uid, evt.type, [false]);
+      });
+
+      $router.unregister(control);
+    },
+  };
+
+  var MailAPI = new $mailapi.MailAPI();
+
+  var bridge = {
+    name: 'bridge',
+    sendMessage: null,
+    process: function(uid, cmd, args) {
+      var msg = args;
+
+      if (msg.type === 'hello') {
+        delete MailAPI._fake;
+        MailAPI.__bridgeSend = function(msg) {
+          worker.postMessage({
+            uid: uid,
+            type: 'bridge',
+            msg: msg
+          });
+        };
+
+        MailAPI.config = msg.config;
+
+        // Send up all the queued messages to real backend now.
+        MailAPI._storedSends.forEach(function (msg) {
+          MailAPI.__bridgeSend(msg);
+        });
+        MailAPI._storedSends = [];
+      } else {
+        MailAPI.__bridgeReceive(msg);
+      }
+    },
+  };
+
+  // Wire up the worker to the router
+  var worker = new Worker(require.toUrl('./worker-bootstrap.js'));
+  $router.useWorker(worker);
+  $router.register(control);
+  $router.register(bridge);
+  $router.register($configparser);
+  $router.register($cronsync);
+  $router.register($devicestorage);
+  $router.register($maildb);
+  $router.register($net);
+  $router.register($wakelocks);
+
+  return MailAPI;
+}); // end define