MD Settings: Internet: Request network scan

chrome/browser/resources/settings/internet_page/network_summary_item.js

Index: chrome/browser/resources/settings/internet_page/network_summary_item.js
diff --git a/chrome/browser/resources/settings/internet_page/network_summary_item.js b/chrome/browser/resources/settings/internet_page/network_summary_item.js
index 22662ba8e6d18dfa71d437be12eccf4a16d1cc2a..b6ecc79ca55d0344dc4ab31524b285e01abdc3cb 100644
--- a/chrome/browser/resources/settings/internet_page/network_summary_item.js
+++ b/chrome/browser/resources/settings/internet_page/network_summary_item.js
@@ -43,6 +43,12 @@ Polymer({
     },
 
     /**
+     * Type of networks in networkStateList. Used to initialte scanning.
+     * @type {CrOnc.Type}
+     */
+    networkType: String,
+
+    /**
      * Interface for networkingPrivate calls, passed from internet_page.
      * @type {!NetworkingPrivate}
      */
@@ -69,6 +75,19 @@ Polymer({
     },
   },
 
+  observers: ['updateScanning_(networkingPrivate, networkType, expanded_)'],
+
+  /** @private {number|null} */
+  scanIntervalId_: null,
+
+  /** override */
+  detached: function() {
+    if (this.scanIntervalId_ !== null) {
+      window.clearInterval(this.scanIntervalId_);
+      this.scanIntervalId_ = null;
+    }
+  },
+
   /** @private */
   expandedChanged_: function() {
     var type = this.deviceState ? this.deviceState.Type : '';
@@ -81,6 +100,27 @@ Polymer({
       this.expanded_ = false;
   },
 
+  /** @private */
+  updateScanning_: function() {
+    if (this.scanIntervalId_ != null) {
+      if (!this.expanded_) {
+        window.clearInterval(this.scanIntervalId_);
+        this.scanIntervalId_ = null;
+      }
+      return;
+    }
+    if (!this.expanded_ ||
+        (this.networkType != CrOnc.Type.ALL &&
+         this.networkType != CrOnc.Type.WI_FI)) {
+      return;
+    }
+    /** @const */ var INTERVAL_MS = 10 * 1000;
+    this.networkingPrivate.requestNetworkScan();
+    this.scanIntervalId_ = window.setInterval(function() {
+      this.networkingPrivate.requestNetworkScan();
+    }.bind(this), INTERVAL_MS);
+  },
+
   /**
    * @return {boolean} Whether or not the scanning spinner should be visible.
    * @private