Settings: Network: Closure cleanup

chrome/browser/resources/settings/internet_page/network_summary_item.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 for displaying the network state for a specific
  * type and a list of networks for that type.
  */
 
-/** @typedef {chrome.networkingPrivate.DeviceStateProperties} */
-var DeviceStateProperties;
-
 Polymer({
   is: 'network-summary-item',
 
   behaviors: [CrPolicyNetworkBehavior, I18nBehavior],
 
   properties: {
     /**
-     * Device state for the network type.
-     * @type {!DeviceStateProperties|undefined}
+     * Device state for the network type. This might briefly be undefined if a
+     * device becomes unavailable.
+     * @type {!CrOnc.DeviceStateProperties|undefined}
      */
     deviceState: Object,
 
     /**
      * Network state for the active network.
      * @type {!CrOnc.NetworkStateProperties|undefined}
      */
     activeNetworkState: Object,
 
     /**
@@ skipping 16 matching lines @@
 
   /**
    * @return {string}
    * @private
    */
   getNetworkName_: function() {
     return CrOncStrings['OncType' + this.activeNetworkState.Type];
   },
 
   /**
+   * @param {!CrOnc.NetworkStateProperties} activeNetworkState
+   * @param {!CrOnc.DeviceStateProperties|undefined} deviceState
    * @return {string}
    * @private
    */
-  getNetworkStateText_: function() {
-    var network = this.activeNetworkState;
-    var state = network.ConnectionState;
-    var name = CrOnc.getNetworkName(network);
+  getNetworkStateText_: function(activeNetworkState, deviceState) {
+    var state = activeNetworkState.ConnectionState;
+    var name = CrOnc.getNetworkName(activeNetworkState);
     if (state)
       return this.getConnectionStateText_(state, name);
-    var deviceState = this.deviceState;
     if (deviceState) {
-      if (deviceState.State ==
-          chrome.networkingPrivate.DeviceStateType.ENABLING) {
+      if (deviceState.State == CrOnc.DeviceState.ENABLING)
         return this.i18n('internetDeviceEnabling');
-      }
-      if (deviceState.Type == CrOnc.Type.CELLULAR &&
-          this.deviceState.Scanning) {
+      if (deviceState.Type == CrOnc.Type.CELLULAR && this.deviceState.Scanning)
         return this.i18n('internetMobileSearching');
-      }
-      if (deviceState.State == chrome.networkingPrivate.DeviceStateType.ENABLED)
+      if (deviceState.State == CrOnc.DeviceState.ENABLED)
         return CrOncStrings.networkListItemNotConnected;
     }
     return this.i18n('deviceOff');
   },
 
   /**
    * @param {CrOnc.ConnectionState} state
    * @param {string} name
    * @return {string}
    * @private
@@ skipping 19 matching lines @@
    */
   showPolicyIndicator_: function() {
     var network = this.activeNetworkState;
     return network.ConnectionState == CrOnc.ConnectionState.CONNECTED ||
         this.isPolicySource(network.Source);
   },
 
   /**
    * Show the <network-siminfo> element if this is a disabled and locked
    * cellular device.
+   * @param {!CrOnc.DeviceStateProperties|undefined} deviceState
    * @return {boolean}
    * @private
    */
-  showSimInfo_: function() {
-    var device = this.deviceState;
-    if (device.Type != CrOnc.Type.CELLULAR ||
-        this.deviceIsEnabled_(this.deviceState)) {
+  showSimInfo_: function(deviceState) {
+    if (!deviceState || deviceState.Type != CrOnc.Type.CELLULAR ||
+        this.deviceIsEnabled_(deviceState)) {
       return false;
     }
-    return device.SimPresent === false ||
-        device.SimLockType == CrOnc.LockType.PIN ||
-        device.SimLockType == CrOnc.LockType.PUK;
+    return deviceState.SimPresent === false ||
+        deviceState.SimLockType == CrOnc.LockType.PIN ||
+        deviceState.SimLockType == CrOnc.LockType.PUK;
   },
 
   /**
    * Returns a NetworkProperties object for <network-siminfo> built from
    * the device properties (since there will be no active network).
-   * @param {!DeviceStateProperties} deviceState
-   * @return {!CrOnc.NetworkProperties}
+   * @param {!CrOnc.DeviceStateProperties|undefined} deviceState
+   * @return {!CrOnc.NetworkProperties|undefined}
    * @private
    */
   getCellularState_: function(deviceState) {
+    if (!deviceState)
+      return undefined;
     return {
       GUID: '',
       Type: CrOnc.Type.CELLULAR,
       Cellular: {
         SIMLockStatus: {
           LockType: deviceState.SimLockType || '',
           LockEnabled: deviceState.SimLockType != CrOnc.LockType.NONE,
         },
         SIMPresent: deviceState.SimPresent,
       },
     };
   },
 
   /**
-   * @param {!DeviceStateProperties|undefined} deviceState
+   * @param {!CrOnc.DeviceStateProperties|undefined} deviceState
    * @return {boolean} Whether or not the device state is enabled.
    * @private
    */
   deviceIsEnabled_: function(deviceState) {
-    return !!deviceState &&
-        deviceState.State == chrome.networkingPrivate.DeviceStateType.ENABLED;
+    return !!deviceState && deviceState.State == CrOnc.DeviceState.ENABLED;
   },
 
   /**
-   * @param {!DeviceStateProperties} deviceState
+   * @param {!CrOnc.DeviceStateProperties|undefined} deviceState
    * @return {boolean}
    * @private
    */
   enableToggleIsVisible_: function(deviceState) {
-    return deviceState.Type != CrOnc.Type.ETHERNET &&
+    return !!deviceState && deviceState.Type != CrOnc.Type.ETHERNET &&
         deviceState.Type != CrOnc.Type.VPN;
   },
 
   /**
-   * @param {!DeviceStateProperties} deviceState
+   * @param {!CrOnc.DeviceStateProperties|undefined} deviceState
    * @return {boolean}
    * @private
    */
   enableToggleIsEnabled_: function(deviceState) {
-    return deviceState.State !=
-        chrome.networkingPrivate.DeviceStateType.PROHIBITED;
+    return !!deviceState && deviceState.State != CrOnc.DeviceState.PROHIBITED;
   },
 
   /**
-   * @param {!DeviceStateProperties} deviceState
+   * @param {!CrOnc.DeviceStateProperties|undefined} deviceState
    * @return {string}
    * @private
    */
   getToggleA11yString_: function(deviceState) {
     if (!this.enableToggleIsVisible_(deviceState))
       return '';
     switch (deviceState.Type) {
       case CrOnc.Type.TETHER:
         return this.i18n('internetToggleTetherA11yLabel');
       case CrOnc.Type.CELLULAR:
         return this.i18n('internetToggleMobileA11yLabel');
       case CrOnc.Type.WI_FI:
         return this.i18n('internetToggleWiFiA11yLabel');
       case CrOnc.Type.WI_MAX:
         return this.i18n('internetToggleWiMAXA11yLabel');
     }
     assertNotReached();
     return '';
   },
 
   /**
+   * @param {!CrOnc.DeviceStateProperties|undefined} deviceState
    * @return {boolean}
    * @private
    */
-  showDetailsIsVisible_: function() {
-    return this.deviceIsEnabled_(this.deviceState) &&
+  showDetailsIsVisible_: function(deviceState) {
+    return this.deviceIsEnabled_(deviceState) &&
         (!!this.activeNetworkState.GUID || this.networkStateList.length > 0);
   },
 
   /**
+   * @param {!CrOnc.DeviceStateProperties|undefined} deviceState
    * @return {boolean}
    * @private
    */
-  shouldShowList_: function() {
-    var minlen = (this.deviceState.Type == CrOnc.Type.WI_FI ||
-                  this.deviceState.Type == CrOnc.Type.VPN ||
-                  this.deviceState.Type == CrOnc.Type.TETHER) ?
+  shouldShowSubpage_: function(deviceState) {
+    if (!deviceState)
+      return false;
+    var type = deviceState.Type;
+    var minlen = (deviceState.Type == CrOnc.Type.WI_FI ||
+                  deviceState.Type == CrOnc.Type.VPN ||
+                  deviceState.Type == CrOnc.Type.TETHER) ?
         1 :
         2;
     return this.networkStateList.length >= minlen;
   },
 
   /**
    * @param {!Event} event The enable button event.
    * @private
    */
   onShowDetailsTap_: function(event) {
     if (!this.deviceIsEnabled_(this.deviceState)) {
       this.fire(
           'device-enabled-toggled',
           {enabled: true, type: this.deviceState.Type});
-    } else if (this.shouldShowList_()) {
+    } else if (this.shouldShowSubpage_(this.deviceState)) {
       this.fire('show-networks', this.deviceState);
     } else if (this.activeNetworkState.GUID) {
       this.fire('show-detail', this.activeNetworkState);
     } else if (this.networkStateList.length > 0) {
       this.fire('show-detail', this.networkStateList[0]);
     }
     event.stopPropagation();
   },
 
   /**
+   * @param {!CrOnc.NetworkStateProperties} activeNetworkState
+   * @param {!CrOnc.DeviceStateProperties|undefined} deviceState
+   * @param {!Array<!CrOnc.NetworkStateProperties>} networkStateList
    * @return {string}
    * @private
    */
-  getDetailsA11yString_: function() {
-    if (!this.shouldShowList_()) {
+  getDetailsA11yString_: function(
+      activeNetworkState, deviceState, networkStateList) {
+    if (!this.shouldShowSubpage_(deviceState)) {
       if (this.activeNetworkState.GUID) {
         return CrOnc.getNetworkName(this.activeNetworkState);
       } else if (this.networkStateList.length > 0) {
         return CrOnc.getNetworkName(this.networkStateList[0]);
       }
     }
     return this.i18n('OncType' + this.deviceState.Type);
   },
 
   /**
    * Event triggered when the enable button is toggled.
    * @param {!Event} event
    * @private
    */
   onDeviceEnabledTap_: function(event) {
     var deviceIsEnabled = this.deviceIsEnabled_(this.deviceState);
     var type = this.deviceState ? this.deviceState.Type : '';
     this.fire(
         'device-enabled-toggled', {enabled: !deviceIsEnabled, type: type});
     // Make sure this does not propagate to onDetailsTap_.
     event.stopPropagation();
   },
 });