Swarming UI: Bold requested dimensions in bot dimensions

appengine/swarming/ui/res/imp/taskpage/task-page.html

 <!--
   Copyright 2016 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.
 
   This in an HTML Import-able file that contains the definition
   of the following elements:
 
     <task-page>
 
@@ skipping 45 matching lines @@
       }
 
       .right {
         margin-top: 8px;
       }
 
       .break-all {
         word-break: break-all;
       }
 
+      .bolded {
+        font-weight: bold;
+      }
+
       .expand {
         min-width: 3em;
         vertical-align: middle;
         padding: .5em;
       }
 
       .code {
         font-family: monospace;
       }
 
@@ skipping 45 matching lines @@
       .full-width-container > paper-checkbox {
         position: absolute;
         bottom: 10px;
         width: 140px;
         left: 5px;
       }
 
       .italic {
         font-style: italic;
       }
+
+      span.dim~span.dim:before {
+        content: " | ";
+      }
     </style>
 
     <url-param name="id"
       value="{{task_id}}">
     </url-param>
     <url-param name="try_detail"
       value="{{_try_detail}}">
     </url-param>
     <url-param name="request_detail"
       value="{{_request_detail}}">
@@ skipping 194 matching lines @@
                     <a
                         title="The list of bots that matches the list of dimensions"
                         href$="[[_botListLink(_request.properties.dimensions)]]">Bots</a>
                      <a
                         title="The list of tasks that matches the list of dimensions"
                         href$="[[_taskListLink(_request.properties.dimensions)]]">Tasks</a>
                   </td>
                 </tr>
                 <template is="dom-repeat" items="{{_request.properties.dimensions}}" as="dimension">
                   <tr>
-                    <td><b>[[dimension.key]]:</b> [[_alias(dimension)]]</td>
+                    <td><b>[[dimension.key]]:</b> [[_aliasRequest(dimension)]]</td>
                   </tr>
                 </template>
                 <tr>
                   <td>Isolated Inputs</td>
                   <td>
                     <a href$="[[_isolateLink(_request.properties.inputs_ref)]]">
                       [[_request.properties.inputs_ref.isolated]]
                     </a>
                   </td>
                 </tr>
@@ skipping 120 matching lines @@
                   <td>Bot assigned to task</td>
                   <td><a href$="[[_botLink(_result.bot_id)]]">[[_result.bot_id]]</td>
                 </tr>
                 <tr>
                   <td rowspan$="[[_rowspan(_result.bot_dimensions)]]">
                     <a>Bot Dimensions</a>
                   </td>
                 </tr>
                 <template is="dom-repeat" items="[[_result.bot_dimensions]]" as="dimension">
                   <tr>
-                    <td><b>[[dimension.key]]:</b> [[_alias(dimension)]]</td>
+                    <td bgcolor$="[[_highlight(_request.properties.dimensions, dimension.key)]]">
+                      <b>[[dimension.key]]:</b>
+                      <template 
+                        is="dom-repeat" 
+                        items="[[_aliasResult(_request.properties.dimensions, dimension)]]" 
+                        as="value">
+                        <span class$="[[value.class]] dim">[[value.name]]</span>
+                      </template>
+                    </td>
                   </tr>
                 </template>
 
                 <tr>
                   <td>Exit code</td>
                   <td>[[_result.exit_code]]</td>
                 </tr>
                 <tr>
                   <td>Try number</td>
                   <td>[[_result.try_number]]</td>
@@ skipping 232 matching lines @@
           type: Object,
         },
         _stdout: {
           type: String,
         }
       },
 
       observers: [
         "_similarLoad(_request,_result,_auth_headers)"],
 
-      _alias: function(dim) {
-        var values = dim.value;
+      _aliasRequest: function(request) {
+        var values = request.value;
         if (!Array.isArray(values)) {
           values = [values];
         }
-        if (swarming.alias.has(dim.key)) {
-          values.forEach(function(v, i){
-            values[i] = swarming.alias.apply(v, dim.key);
+        if (swarming.alias.has(request.key)) {
+          values.forEach(function(v, i) {
+            values[i] = swarming.alias.apply(v, request.key);
           });
         }
         return values.join(" | ");
       },
 
+      _aliasResult: function(requested_dims, bot_dim) {
+        // requested_dims is the entire _request.properties.dimensions array, but we
+        // are only passed in one key at a time from _result.bot_dimensions as the
+        // bot_dim variable. Therefore we need to loop through the key-value pairs
+        // of requested_dims to determine whether the current bot dimension was 
+        // requested.
+        var boldMap = [];
+        var target = null;
+        requested_dims.forEach(function(dim, i) {
+          if (dim.key === bot_dim.key) {
+            target = i;
+          }
+        });
+        var values = bot_dim.value;
+        if (!Array.isArray(values)) {
+          values = [values];
+        }
+        values.forEach(function(v, i) {
+          // Adjust the proper alias, if necessary
+          if (swarming.alias.has(bot_dim.key)) {
+            values[i] = swarming.alias.apply(v, bot_dim.key);
+          }
+          // Set class attribute to bolded if the value was included in the
+          // requested dimensions
+          var bold = "";
+          if (target != null && requested_dims[target].value === v) {
+            bold = "bolded";
+          }
+          boldMap.push({"name": values[i], "class": bold});
+        });
+
+        // Return an array of objects that map each value to its corresponding
+        // class name based on whether it should be bolded.
+        return boldMap;
+      },
+
       _bytes: function(sizeInBytes) {
         return sk.human.bytes(sizeInBytes);
       },
 
       _canCancelTask: function(result, permissions) {
         return result && result.state === "PENDING" && permissions.cancel_task;
       },
 
       _cancelTask: function() {
         var url = "/api/swarming/v1/task/" + this.task_id +"/cancel";
@@ skipping 106 matching lines @@
         if (!template) {
           return undefined;
         }
         return template.replace("%s", id);
       },
 
       _hasActualCIPDPackages: function(result) {
         return result && result.cipd_pins && result.cipd_pins.packages;
       },
 
+      _highlight: function(request, key) {
+        var highlight = false;
+        request.forEach(function (dim) {
+          if (dim.key == key) {
+            highlight = true;
+          }
+        });
+        return highlight ? "Yellow" : "White";
+      },
+
       _internalClass: function(failure) {
         if (failure) {
           return "exception";
         }
         return "";
       },
 
       _isolateLink: function(ref) {
         if (!ref || !ref.isolatedserver) {
           return undefined;
@@ skipping 183 matching lines @@
 
         this._getJsonAsync("_other_running", "/api/swarming/v1/tasks/count", "_busyRunningCount", this._auth_headers, taskCountParams);
         // change running to pending
         taskCountParams.state = ["PENDING"];
         this._getJsonAsync("_other_pending", "/api/swarming/v1/tasks/count", "_busyPendingCount", this._auth_headers, taskCountParams);
       }
     });
   })();
   </script>
 </dom-module>