MD Settings: Fix subpage navigation focus for bluetooth+internet

This CL:
* Fixes the subpage arrow for bluetooth and focus it correctly.
* Provides focus logic for internet-page -> internet-subpage ->
  internet-detail-page.
* Fixes keyboard navigation to details page from cr-network-list-item

BUG=714350
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2841873004
Cr-Commit-Position: refs/heads/master@{#467783}

chrome/browser/resources/settings/bluetooth_page/bluetooth_page.html

@@ -16,7 +16,8 @@
   <template>
     <style include="settings-shared">
     </style>
-    <settings-animated-pages id="pages" section="bluetooth">
+    <settings-animated-pages id="pages" section="bluetooth"
+        focus-config="[[focusConfig_]]">
       <neon-animatable route-path="default">
         <div id="bluetoothDevices"
             class="settings-box two-line" actionable on-tap="onTap_">
@@ -32,7 +33,7 @@
               pref="[[prefs.cros.device.allow_bluetooth]]"
             hidden="[[prefs.cros.device.allow_bluetooth.value]]">
           </cr-policy-pref-indicator>
-          <template is="dom-if" if="[[bluetoothEnabled_]]">
+          <template is="dom-if" if="[[bluetoothToggleState_]]">
             <button class="subpage-arrow" is="paper-icon-button-light"
                 on-tap="onSubpageArrowTap_"
                 aria-label="$i18n{bluetoothPageTitle}"

chrome/browser/resources/settings/bluetooth_page/bluetooth_page.js

@@ -65,6 +65,18 @@ Polymer({
       notify: true,
     },
 
+    /** @private {!Map<string, string>} */
+    focusConfig_: {
+      type: Object,
+      value: function() {
+        var map = new Map();
+        map.set(
+            settings.Route.BLUETOOTH_DEVICES.path,
+            '#bluetoothDevices .subpage-arrow');
+        return map;
+      },
+    },
+
     /**
      * Interface for bluetooth calls. May be overriden by tests.
      * @type {Bluetooth}

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

@@ -144,6 +144,9 @@ Polymer({
    */
   networksChangedListener_: null,
 
+  /** @private {boolean} */
+  didSetFocus_: false,
+
   /**
    * settings.RouteObserverBehavior
    * @param {!settings.Route} route
@@ -180,6 +183,7 @@ Polymer({
       ConnectionState: CrOnc.ConnectionState.NOT_CONNECTED,
       Name: {Active: name},
     };
+    this.didSetFocus_ = false;
     this.getNetworkDetails_();
   },
 
@@ -216,6 +220,16 @@ Polymer({
 
     // Update the detail page title.
     this.parentNode.pageTitle = CrOnc.getNetworkName(this.networkProperties);
+
+    // Focus a button once the initial state is set.
+    if (!this.didSetFocus_) {
+      this.didSetFocus_ = true;
+      var button = this.$$('#buttonDiv .primary-button:not([hidden])');
+      if (!button)
+        button = this.$$('#buttonDiv .secondary-button:not([hidden])');
+      assert(button);  // At least one button will always be visible.
+      button.focus();
+    }
   },
 
   /** @private */
@@ -549,7 +563,8 @@ Polymer({
     this.networkingPrivate.startActivate(this.guid);
   },
 
-  /** @const {string} */ CR_EXPAND_BUTTON_TAG: 'CR-EXPAND-BUTTON',
+  /** @const {string} */
+  CR_EXPAND_BUTTON_TAG: 'CR-EXPAND-BUTTON',
 
   /**
    * @param {Event} event

chrome/browser/resources/settings/internet_page/internet_page.html

@@ -30,7 +30,8 @@
         width: 24px;
       }
     </style>
-    <settings-animated-pages id="pages" section="internet">
+    <settings-animated-pages id="pages" section="internet"
+        focus-config="[[focusConfig_]]">
       <neon-animatable route-path="default">
         <network-summary default-network="{{defaultNetwork}}"
             device-states="{{deviceStates}}"            

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

@@ -88,8 +88,19 @@ Polymer({
         return [];
       }
     },
+
+    /** @private {!Map<string, string>} */
+    focusConfig_: {
+      type: Object,
+      value: function() {
+        return new Map();
+      },
+    },
   },
 
+  /** @private {string} Type of last detail page visited. */
+  detailType_: '',
+
   // Element event listeners
   listeners: {
     'device-enabled-toggled': 'onDeviceEnabledToggled_',
@@ -110,13 +121,13 @@ Polymer({
 
   /** @override */
   attached: function() {
-    this.onExtensionAddedListener_ = this.onExtensionAddedListener_ ||
-        this.onExtensionAdded_.bind(this);
+    this.onExtensionAddedListener_ =
+        this.onExtensionAddedListener_ || this.onExtensionAdded_.bind(this);
     chrome.management.onInstalled.addListener(this.onExtensionAddedListener_);
     chrome.management.onEnabled.addListener(this.onExtensionAddedListener_);
 
-    this.onExtensionRemovedListener_ = this.onExtensionRemovedListener_ ||
-        this.onExtensionRemoved_.bind(this);
+    this.onExtensionRemovedListener_ =
+        this.onExtensionRemovedListener_ || this.onExtensionRemoved_.bind(this);
     chrome.management.onUninstalled.addListener(
         this.onExtensionRemovedListener_);
 
@@ -146,9 +157,10 @@ Polymer({
   /**
    * settings.RouteObserverBehavior
    * @param {!settings.Route} route
+   * @param {!settings.Route} oldRoute
    * @protected
    */
-  currentRouteChanged: function(route) {
+  currentRouteChanged: function(route, oldRoute) {
     if (route == settings.Route.INTERNET_NETWORKS) {
       // Handle direct navigation to the networks page,
       // e.g. chrome://settings/internet/networks?type=WiFi
@@ -163,7 +175,29 @@ Polymer({
       var type = queryParams.get('type');
       if (type)
         this.knownNetworksType_ = type;
+    } else if (
+        route != settings.Route.INTERNET && route != settings.Route.BASIC) {
+      // If we are navigating to a non internet section, do not set focus.
+      return;
     }
+
+    if (!settings.Route.INTERNET.contains(oldRoute))
+      return;
+
+    // Focus the subpage arrow where appropriate.
+    var selector;
+    if (route == settings.Route.INTERNET_NETWORKS) {
+      // iron-list makes the correct timing to focus an item in the list
+      // very complicated, and the item may not exist, so just focus the
+      // entire list for now.
+      selector = '* /deep/ #networkList';
+    } else if (this.detailType_) {
+      selector = '* /deep/ #' + this.detailType_ + ' /deep/ .subpage-arrow';
+    }
+    if (selector && this.querySelector(selector))
+      this.focusConfig_.set(oldRoute.path, selector);
+    else
+      this.focusConfig_.delete(oldRoute.path);
   },
 
   /**
@@ -184,6 +218,7 @@ Polymer({
    * @private
    */
   onShowDetail_: function(event) {
+    this.detailType_ = event.detail.Type;
     var params = new URLSearchParams;
     params.append('guid', event.detail.GUID);
     params.append('type', event.detail.Type);
@@ -197,6 +232,7 @@ Polymer({
    * @private
    */
   onShowNetworks_: function(event) {
+    this.detailType_ = event.detail.Type;
     var params = new URLSearchParams;
     params.append('type', event.detail.Type);
     this.subpageType_ = event.detail.Type;
@@ -216,6 +252,7 @@ Polymer({
    * @private
    */
   onShowKnownNetworks_: function(event) {
+    this.detailType_ = event.detail.Type;
     var params = new URLSearchParams;
     params.append('type', event.detail.Type);
     this.knownNetworksType_ = event.detail.type;
@@ -329,8 +366,8 @@ Polymer({
    * @private
    */
   deviceIsEnabled_: function(deviceState) {
-    return !!deviceState && deviceState.State ==
-        chrome.networkingPrivate.DeviceStateType.ENABLED;
+    return !!deviceState &&
+        deviceState.State == chrome.networkingPrivate.DeviceStateType.ENABLED;
   },
 
   /**

chrome/browser/resources/settings/settings_page/settings_animated_pages.js

@@ -47,8 +47,8 @@ Polymer({
   /** @override */
   created: function() {
     // Observe the light DOM so we know when it's ready.
-    this.lightDomObserver_ = Polymer.dom(this).observeNodes(
-        this.lightDomChanged_.bind(this));
+    this.lightDomObserver_ =
+        Polymer.dom(this).observeNodes(this.lightDomChanged_.bind(this));
   },
 
   /** @override */
@@ -71,13 +71,17 @@ Polymer({
 
     // Only handle iron-select events from neon-animatable elements and the
     // given whitelist of settings-subpage instances.
-    if (!e.detail.item.matches(
-        'neon-animatable, ' +
-        'settings-subpage#site-settings, ' +
+    var whitelist = 'settings-subpage#site-settings, ' +
         'settings-subpage[route-path=\"' +
-            settings.Route.SITE_SETTINGS_COOKIES.path + '\"]')) {
+        settings.Route.SITE_SETTINGS_COOKIES.path + '\"]';
+
+// <if expr="chromeos">
+    whitelist += ', settings-subpage[route-path=\"' +
+        settings.Route.INTERNET_NETWORKS.path + '\"]';
+// </if>
+
+    if (!e.detail.item.matches('neon-animatable, ' + whitelist))
       return;
-    }
 
     var selector = this.focusConfig.get(this.previousRoute_.path);
     if (selector) {
@@ -124,8 +128,7 @@ Polymer({
     if (!this.queuedRouteChange_)
       return;
     this.async(this.currentRouteChanged.bind(
-        this,
-        this.queuedRouteChange_.newRoute,
+        this, this.queuedRouteChange_.newRoute,
         this.queuedRouteChange_.oldRoute));
   },
 
@@ -203,8 +206,8 @@ Polymer({
       return;
 
     // Set the subpage's id for use by neon-animated-pages.
-    var subpage = /** @type {{_content: DocumentFragment}} */(template)._content
-        .querySelector('settings-subpage');
+    var subpage = /** @type {{_content: DocumentFragment}} */ (template)
+                      ._content.querySelector('settings-subpage');
     subpage.setAttribute('route-path', routePath);
 
     // Carry over the 'no-search' attribute from the template to the stamped

chrome/browser/resources/settings/settings_resources.grd

@@ -101,7 +101,8 @@
                  type="chrome_html" />
       <structure name="IDR_SETTINGS_CR_SETTINGS_ANIMATED_PAGES_JS"
                  file="settings_page/settings_animated_pages.js"
-                 type="chrome_html" />
+                 type="chrome_html"
+                 preprocess="true" />
       <structure name="IDR_SETTINGS_APPEARANCE_BROWSER_PROXY_HTML"
                  file="appearance_page/appearance_browser_proxy.html"
                  type="chrome_html" />

ui/webui/resources/cr_elements/network/cr_network_list_item.html

 <link rel="import" href="chrome://resources/cr_elements/icons.html">
 <link rel="import" href="chrome://resources/html/polymer.html">
+<link rel="import" href="chrome://resources/polymer/v1_0/iron-a11y-keys/iron-a11y-keys.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-flex-layout/classes/iron-flex-layout.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button-light.html">
 <link rel="import" href="chrome://resources/cr_elements/network/cr_network_icon.html">
@@ -87,6 +88,9 @@
       <template is="dom-if"
           if="[[isSubpageButtonVisible_(networkState, showButtons)]]">
         <div id="subpageDiv" class="layout horizontal">
+          <!-- iron-list captures 'enter' so handle it here explicitly. -->
+          <iron-a11y-keys keys="enter" on-keys-pressed="fireShowDetails_">
+          </iron-a11y-keys>
           <button class="subpage-arrow" is="paper-icon-button-light"
               on-tap="fireShowDetails_" tabindex$="[[tabindex]]"
               aria-label$="[[ariaLabel]]">