Gerrit: Fixup gr-message to support anon user (ie a user with no name)

It was showing the user with no name. So users that don't have an
avatar would be invisible. Use a fallback name like we do with the
account dropdown.
See https://gerrit-review.googlesource.com/c/111815/?polygerrit=1

Change-Id: I853d450718e7bd7a9b1555a0c93740a0beea2447

polygerrit-ui/app/behaviors/gr-anonymous-name-behavior/gr-anonymous-name-behavior.html

@@ -0,0 +1,38 @@
+<!--
+Copyright (C) 2017 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+
+<script>
+(function(window) {
+  'use strict';
+
+  const ANONYMOUS_NAME = 'Anonymous';
+
+  /** @polymerBehavior Gerrit.AnonymousNameBehavior */
+  const AnonymousNameBehavior = {
+    getAnonymousName(config) {
+      if (config && config.user &&
+          config.user.anonymous_coward_name !== 'Anonymous Coward') {
+        return config.user.anonymous_coward_name;
+      }
+
+      return ANONYMOUS_NAME;
+    },
+  };
+
+  window.Gerrit = window.Gerrit || {};
+  window.Gerrit.AnonymousNameBehavior = AnonymousNameBehavior;
+})(window);
+</script>

polygerrit-ui/app/elements/change/gr-message/gr-message.html

@@ -14,6 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 -->
 
+<link rel="import" href="../../../behaviors/gr-anonymous-name-behavior/gr-anonymous-name-behavior.html">
 <link rel="import" href="../../../bower_components/polymer/polymer.html">
 <link rel="import" href="../../shared/gr-account-link/gr-account-link.html">
 <link rel="import" href="../../shared/gr-button/gr-button.html">
@@ -143,7 +144,7 @@ limitations under the License.
             <span class="name">[[message.real_author.name]]</span>
             on behalf of
           </span>
-          <span class="name">[[author.name]]</span>
+          <span class="name">[[_authorOrAnon(author)]]</span>
         </div>
         <template is="dom-if" if="[[message.message]]">
           <div class="content">

polygerrit-ui/app/elements/change/gr-message/gr-message.js

@@ -86,6 +86,10 @@
       },
     },
 
+    behaviors: [
+      Gerrit.AnonymousNameBehavior,
+    ],
+
     observers: [
       '_updateExpandedClass(message.expanded)',
     ],
@@ -226,5 +230,15 @@
       e.preventDefault();
       this.fire('reply', {message: this.message});
     },
+
+    _authorOrAnon(author) {
+      if (author && author.name) {
+        return author.name;
+      } else if (author && author.email) {
+        return author.email;
+      }
+
+      return this.getAnonymousName(this.config);
+    },
   });
 })();

polygerrit-ui/app/elements/change/gr-message/gr-message_test.html

@@ -211,5 +211,27 @@ limitations under the License.
       };
       assert.isOk(Polymer.dom(element.root).querySelector('.positiveVote'));
     });
+
+    test('test for Anonymous Coward user and replace with Anonymous', () => {
+      element.config = {
+        user: {
+          anonymous_coward_name: 'Anonymous Coward',
+        },
+      };
+      element.account = {};
+      assert.deepEqual(
+          element._authorOrAnon(element.account), 'Anonymous');
+    });
+
+    test('test for anonymous_coward_name', () => {
+      element.config = {
+        user: {
+          anonymous_coward_name: 'TestAnon',
+        },
+      };
+      element.account = {};
+      assert.deepEqual(
+          element._authorOrAnon(element.account, element.config), 'TestAnon');
+    });
   });
 </script>

polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown.html

@@ -14,6 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 -->
 
+<link rel="import" href="../../../behaviors/gr-anonymous-name-behavior/gr-anonymous-name-behavior.html">
 <link rel="import" href="../../../bower_components/polymer/polymer.html">
 <link rel="import" href="../../shared/gr-button/gr-button.html">
 <link rel="import" href="../../shared/gr-dropdown/gr-dropdown.html">
@@ -40,7 +41,7 @@ limitations under the License.
         items=[[links]]
         top-content=[[topContent]]
         horizontal-align="right">
-        <span hidden$="[[_hasAvatars]]" hidden>[[_accountName(account, _anonymousName)]]</span>
+        <span hidden$="[[_hasAvatars]]" hidden>[[_accountName(account)]]</span>
         <gr-avatar account="[[account]]" hidden$="[[!_hasAvatars]]" hidden
             image-size="56" aria-label="Account avatar"></gr-avatar>
     </gr-dropdown>

polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown.js

@@ -16,24 +16,19 @@
 
   const INTERPOLATE_URL_PATTERN = /\$\{([\w]+)\}/g;
 
-  const ANONYMOUS_NAME = 'Anonymous';
-
   Polymer({
     is: 'gr-account-dropdown',
 
     properties: {
       account: Object,
-      _anonymousName: {
+      config: Object,
-        type: String,
-        value: ANONYMOUS_NAME,
-      },
       links: {
         type: Array,
         computed: '_getLinks(_switchAccountUrl, _path)',
       },
       topContent: {
         type: Array,
-        computed: '_getTopContent(account, _anonymousName)',
+        computed: '_getTopContent(account)',
       },
       _path: {
         type: String,
@@ -47,21 +42,21 @@
       this._handleLocationChange();
       this.listen(window, 'location-change', '_handleLocationChange');
       this.$.restAPI.getConfig().then(cfg => {
+        this.config = cfg;
+
         if (cfg && cfg.auth && cfg.auth.switch_account_url) {
           this._switchAccountUrl = cfg.auth.switch_account_url;
         } else {
           this._switchAccountUrl = null;
         }
         this._hasAvatars = !!(cfg && cfg.plugin && cfg.plugin.has_avatars);
-
-        if (cfg && cfg.user &&
-            cfg.user.anonymous_coward_name &&
-            cfg.user.anonymous_coward_name !== 'Anonymous Coward') {
-          this._anonymousName = cfg.user.anonymous_coward_name;
-        }
       });
     },
 
+    behaviors: [
+      Gerrit.AnonymousNameBehavior,
+    ],
+
     detached() {
       this.unlisten(window, 'location-change', '_handleLocationChange');
     },
@@ -77,9 +72,9 @@
       return links;
     },
 
-    _getTopContent(account, _anonymousName) {
+    _getTopContent(account) {
       return [
-        {text: this._accountName(account, _anonymousName), bold: true},
+        {text: this._accountName(account), bold: true},
         {text: account.email ? account.email : ''},
       ];
     },
@@ -97,13 +92,14 @@
       });
     },
 
-    _accountName(account, _anonymousName) {
+    _accountName(account) {
       if (account && account.name) {
         return account.name;
       } else if (account && account.email) {
         return account.email;
       }
-      return _anonymousName;
+
+      return this.getAnonymousName(this.config);
     },
   });
 })();

polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown_test.html

@@ -55,14 +55,22 @@ limitations under the License.
     });
 
     test('test for account without a name but using config', () => {
-      element._anonymousName = 'WikiGerrit';
+      element.config = {
+        user: {
+          anonymous_coward_name: 'WikiGerrit',
+        },
+      };
       element.account = {id: '0001'};
       assert.deepEqual(element.topContent,
           [{text: 'WikiGerrit', bold: true}, {text: ''}]);
     });
 
     test('test for account name as an email', () => {
-      element._anonymousName = 'WikiGerrit';
+      element.config = {
+        user: {
+          anonymous_coward_name: 'WikiGerrit',
+        },
+      };
       element.account = {email: 'john@doe.com'};
       assert.deepEqual(element.topContent,
           [{text: 'john@doe.com', bold: true}, {text: 'john@doe.com'}]);