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gaia/apps/calendar/js/controllers/error.js

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+define(function(require, exports, module) {
+'use strict';
+
+var Authentication = require('common/error').Authentication;
+var InvalidServer = require('common/error').InvalidServer;
+var Responder = require('common/responder');
+var nextTick = require('common/next_tick');
+var notification = require('notification');
+
+/**
+ * Global error handler / default handling for errors.
+ */
+function ErrorController() {
+  Responder.call(this);
+  this._handlers = Object.create(null);
+}
+module.exports = ErrorController;
+
+ErrorController.prototype = {
+  __proto__: Responder.prototype,
+
+  /**
+   * URL in which account errors are dispatched to.
+   */
+  accountErrorUrl: '/update-account/',
+
+  /**
+   * Dispatch an error event.
+   *
+   * If this type of event has been captured will be dispatched directly to
+   * the callback provided. Otherwise the default behaviour will be triggered.
+   *
+   * @param {Calendar.Error} error to dispatch.
+   */
+  dispatch: function(error) {
+    if (error instanceof Authentication || error instanceof InvalidServer) {
+      this.handleAuthenticate(error.detail.account);
+    }
+
+    this.emit('error', error);
+  },
+
+  /**
+   * Default handler for authentication errors.
+   *
+   * @param {Object} account to notify user about.
+   * @param {Function} [callback] optional callback.
+   */
+  handleAuthenticate: function(account, callback) {
+    if (!account) {
+      return console.error('attempting to trigger reauth without an account');
+    }
+
+    // only trigger notification the first time there is an error.
+    if (!account.error || account.error.count !== 1) {
+      return nextTick(callback);
+    }
+
+    var lock = navigator.requestWakeLock('cpu');
+
+    var titleL10n = 'notification-error-sync-title';
+    var bodyL10n = 'notification-error-sync-description';
+
+    var url = this.accountErrorUrl + account._id;
+    notification.sendNotification(titleL10n, bodyL10n, url).then(() => {
+      callback && callback();
+      lock.unlock();
+    });
+  }
+};
+
+});