MD Settings: Internet: Request network scan

ui/webui/resources/cr_elements/network/cr_network_select.js

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview Polymer element wrapping cr-network-list including the
  * networkingPrivate calls to populate it.
  */
 
 Polymer({
@@ skipping 36 matching lines @@
     /**
      * List of all network state data for all visible networks.
      * @private {!Array<!CrOnc.NetworkStateProperties>}
      */
     networkStateList_: {
       type: Array,
       value: function() {
         return [];
       },
     },
-
   },
 
   /**
    * Listener function for chrome.networkingPrivate.onNetworkListChanged event.
    * @type {function(!Array<string>)}
    * @private
    */
   networkListChangedListener_: function() {},
 
   /**
    * Listener function for chrome.networkingPrivate.onDeviceStateListChanged
    * event.
    * @type {function(!Array<string>)}
    * @private
    */
   deviceStateListChangedListener_: function() {},
 
+  /** @private {number|null} */
+  scanIntervalId_: null,
+
   /** @override */
   attached: function() {
     this.networkListChangedListener_ = this.refreshNetworks.bind(this);
     chrome.networkingPrivate.onNetworkListChanged.addListener(
         this.networkListChangedListener_);
 
     this.deviceStateListChangedListener_ = this.refreshNetworks.bind(this);
     chrome.networkingPrivate.onDeviceStateListChanged.addListener(
         this.deviceStateListChangedListener_);
 
     this.refreshNetworks();
+
+    /** @const */ var INTERVAL_MS = 10 * 1000;
     chrome.networkingPrivate.requestNetworkScan();
+    this.scanIntervalId_ = window.setInterval(function() {
+      chrome.networkingPrivate.requestNetworkScan();
+    }.bind(this), INTERVAL_MS);
   },
 
   /** @override */
   detached: function() {
+    if (this.scanIntervalId_ !== null)
+      window.clearInterval(this.scanIntervalId_);
     chrome.networkingPrivate.onNetworkListChanged.removeListener(
         this.networkListChangedListener_);
     chrome.networkingPrivate.onDeviceStateListChanged.removeListener(
         this.deviceStateListChangedListener_);
   },
 
   /**
    * Request the list of visible networks. May be called externally to force a
    * refresh and list update (e.g. when the element is shown).
    */
@@ skipping 55 matching lines @@
   },
 
   /**
    * @param {?CrOnc.NetworkStateProperties} state
    * @private
    */
   defaultNetworkChanged_: function(state) {
     this.fire('default-network-changed', state);
   },
 });