YARN-5917. Make navigation link active when selecting sub tabs in 'Applications' and 'Nodes' page for new UI. Contributed by Kai Sasaki.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/app/templates/application.hbs

@@ -46,13 +46,13 @@
               <span class="sr-only">(current)</span>
             {{/link-to}}
           {{/link-to}}
-          {{#link-to 'yarn-apps.apps' tagName="li"}}
-            {{#link-to 'yarn-apps.apps' class="navigation-link"}}Applications
+          {{#link-to 'yarn-apps.apps' tagName="li" currentWhen="yarn-apps.apps yarn-apps.services"}}
+            {{#link-to 'yarn-apps.apps' class="navigation-link" currentWhen="yarn-apps.apps yarn-apps.services"}}Applications
               <span class="sr-only">(current)</span>
             {{/link-to}}
           {{/link-to}}
-          {{#link-to 'yarn-nodes.table' tagName="li"}}
-            {{#link-to 'yarn-nodes.table' class="navigation-link"}}Nodes
+          {{#link-to 'yarn-nodes.table' tagName="li" currentWhen="yarn-nodes.table yarn-nodes.heatmap"}}
+            {{#link-to 'yarn-nodes.table' class="navigation-link" currentWhen="yarn-nodes.table yarn-nodes.heatmap"}}Nodes
               <span class="sr-only">(current)</span>
             {{/link-to}}
           {{/link-to}}