config_service: Changed lists from paper-items to paper-cards, fixed

appengine/config_service/ui/src/config-ui/config-set.html

 <!--
   Copyright 2017 The LUCI Authors. All rights reserved.
   Use of this source code is governed under the Apache License, Version 2.0
   that can be found in the LICENSE file.
 -->
 
 <link rel="import" href="config-file-card.html">
 <link rel="import" href="../../bower_components/iron-ajax/iron-ajax.html">
 <link rel="import" href="../../bower_components/iron-icons/iron-icons.html">
 <link rel="import" href="../../bower_components/paper-item/paper-item.html">
+<link rel="import" href="../../bower_components/paper-spinner/paper-spinner.html">
 <link rel="import" href="../../bower_components/polymer/polymer.html">
 <link rel="import" href="../../bower_components/iron-icons/maps-icons.html">
 
 <dom-module id="config-set">
   <template>
     <style>
       .category {
         font-size: 100%;
         font-family: sans-serif;
       }
 
       .center {
         width: 27%;
         margin: auto;
         text-align: left;
       }
 
+      .config-card { 
+        padding-bottom: 1%;
+        animation: fadein 1.5s;
+      }
+
+      @keyframes fadein {
+        from {opacity: 0}
+        to {opacity: 1}
+      }
+
       .name {
         font-size: 200%;
         font-family: sans-serif;
       }
 
-      #refreshStatus {
-        font-size: 35%;
-      }
+      #refreshStatus { font-size: 35%; }
 
       .title {
         padding-bottom: 1%;
         padding-top: 5%;
       }
     </style>
 
     <iron-ajax
         auto
         id="requestConfigs"
-        url="/_ah/api/config/v1/config-sets?config_set=[[category]]%2F[[name]][[route.path]]&include_files=true&include_last_import_attempt=true"
+        url="/_ah/api/config/v1/config-sets?config_set=[[category]]/[[name]][[route.path]]&include_files=true&include_last_import_attempt=true"
         handle-as="json"
         on-response="_onGotConfigFiles"
         headers="[[auth_headers]]">
     </iron-ajax>
 
     <iron-ajax
         id="refreshConfigs"
         url="/_ah/api/config/v1/reimport?config_set=[[category]]/[[name]][[route.path]]"
         method="POST"
         handle-as="json"
@@ skipping 31 matching lines @@
               Last import attempt failed: [[lastImportAttempt.message]]
             </template>
           </template>
           <template is="dom-if" if="[[_not(lastImportAttempt)]]">
             Last import attempt info not available.
           </template>
         </template>
       </div>      
     </div>
     <template is="dom-if" if="[[isRefreshing]]">
-      <div class="center">Refreshing config files...</div>
+      <div class="center">
+        <paper-spinner active></paper-spinner>
+      </div>
     </template>
     <template is="dom-if" if="[[_not(isRefreshing)]]">
       <template is="dom-if" if="[[isLoading]]">
-        <div class="center">Fetching config files...</div>
+        <div class="center">
+          <paper-spinner active></paper-spinner>
+        </div>
       </template>
       <template is="dom-if" if="[[_not(isLoading)]]">
         <template is="dom-if" if="[[_isEmpty(files)]]">
           <div class="center" style="font-family: sans-serif;">
             No config files found.
           </div>
         </template>
         <template is="dom-if" if="[[_not(_isEmpty(files))]]">
           <template is="dom-repeat" items="[[files]]" as="file">
-            <config-file-card
-                name="[[file.path]]" link="[[location]]/[[file.path]]">
-            </config-file-card>
+            <div class="center config-card">  
+              <config-file-card
+                  name="[[file.path]]" link="[[location]]/[[file.path]]">
+              </config-file-card>
+            </div>
           </template>
         </template>
       </template>
     </template>
   </template>
   <script>
     Polymer({
       is: "config-set",
 
       properties: {
@@ skipping 81 matching lines @@
             event.detail.response.config_sets[0].last_import_attempt || null;
         this.isLoading = false;
       },
 
       _onRefreshError: function() {
         this.isRefreshing = false;
         this.refreshMessage = "Error: Files could not be refreshed.";
       }
     });
   </script>
-</dom-module>
+</dom-module>