feat: render all /explore result lists as view displays

src/main/java/com/knowledgepixels/nanodash/component/QueryResultList.html

@@ -19,6 +19,7 @@ <h4 wicket:id="label">Query</h4>
     <ul wicket:id="items" class="inline-list">
       <li wicket:id="listItem"></li>
     </ul>
+    <p wicket:id="no-records" class="no-records-note">Nothing found.</p>
     <div class="navigation" wicket:id="navigation">
       <div class="navigatorLabel" wicket:id="navigatorLabel"></div>
       <div class="navigator" wicket:id="navigator"></div>

src/main/java/com/knowledgepixels/nanodash/component/QueryResultList.java

@@ -246,9 +246,18 @@ protected void populateItem(Item<ApiResponseEntry> item) {
         navigation.setVisible(dataView.getPageCount() > 1);
         navigation.add(pagingNavigator);
 
+        Label noRecordsLabel = new Label("no-records", "Nothing found.") {
+            @Override
+            protected void onConfigure() {
+                super.onConfigure();
+                setVisible(filteredDataProvider.size() == 0);
+            }
+        };
+
         itemsContainer = new WebMarkupContainer("items-container");
         itemsContainer.setOutputMarkupId(true);
         itemsContainer.add(dataView);
+        itemsContainer.add(noRecordsLabel);
         itemsContainer.add(navigation);
         add(itemsContainer);
     }

src/main/java/com/knowledgepixels/nanodash/component/QueryResultNanopubSet.html

@@ -16,6 +16,7 @@ <h4 wicket:id="title">[View Title]</h4>
   </div>
   <div wicket:id="nanopubs-container">
     <div class="flex-container" wicket:id="nanopubs"></div>
+    <p wicket:id="no-records" class="no-records-note">Nothing found.</p>
   </div>
 </wicket:panel>
 

src/main/java/com/knowledgepixels/nanodash/component/QueryResultNanopubSet.java

@@ -98,6 +98,14 @@ protected void populateComponent() {
         nanopubsContainer = new WebMarkupContainer("nanopubs-container");
         nanopubsContainer.setOutputMarkupId(true);
         nanopubsContainer.add(buildNanopubResults());
+        Label noRecordsLabel = new Label("no-records", "Nothing found.") {
+            @Override
+            protected void onConfigure() {
+                super.onConfigure();
+                setVisible(filteredDataProvider.size() == 0);
+            }
+        };
+        nanopubsContainer.add(noRecordsLabel);
         add(nanopubsContainer);
 
         if (viewDisplay.getNanopubId() != null) {
@@ -110,6 +118,10 @@ protected void populateComponent() {
     private NanopubResults buildNanopubResults() {
         NanopubResults nanopubResults = NanopubResults.fromApiResponse("nanopubs", filteredDataProvider.getFilteredData(), itemsPerPage);
         nanopubResults.add(AttributeAppender.append("class", NanodashSession.get().getNanopubResultsViewMode().getValue()));
+        // Hide the (empty) results container when there is nothing to show, so the
+        // "Nothing found." note sits directly below the header instead of being pushed
+        // down by the flex-container's padding.
+        nanopubResults.setVisible(!filteredDataProvider.getFilteredData().isEmpty());
         return nanopubResults;
     }
 

src/main/java/com/knowledgepixels/nanodash/page/ExplorePage.html

@@ -48,13 +48,10 @@ <h2><span wicket:id="termname"></span></h2>
   </div>
 
   <div wicket:id="info-section" class="row-section">
-    <div class="col-12">
-      <div wicket:id="classes-panel"></div>
-      <div wicket:id="definitions-panel"></div>
-      <div wicket:id="instances-panel"></div>
-      <div wicket:id="templates-panel"></div>
-      <div wicket:id="parts-panel"></div>
-    </div>
+    <div wicket:id="classes-panel"></div>
+    <div wicket:id="definitions-panel"></div>
+    <div wicket:id="instances-panel"></div>
+    <div wicket:id="templates-panel"></div>
   </div>
 
   <div wicket:id="nanopub-section" class="row-section">

src/main/java/com/knowledgepixels/nanodash/page/ExplorePage.java

@@ -55,6 +55,11 @@ public class ExplorePage extends NanodashPage {
      */
     public static final String MOUNT_PATH = "/explore";
 
+    private static final String DESCRIBED_IN_VIEW = "https://w3id.org/np/RAMH_7qMY-jmgXr2jqqk5F_XW7t2k2n3NCB6LtoKEXDzY/described-in-view";
+    private static final String CLASSES_VIEW = "https://w3id.org/np/RAHPtR1VriEW09tcvZhrM8Dr3vE1JnMWWi9-ajKJWNOJs/classes-view";
+    private static final String INSTANCES_VIEW = "https://w3id.org/np/RABXfsNoT_RYlk8LpDmKfJ2poSlvIGk3jgq4DkR4YLAps/instances-view";
+    private static final String TEMPLATES_VIEW = "https://w3id.org/np/RAP0-S9PUUVF1rQiqo8vq8z6XWsXkeGBUo60DJf8JsXsc/templates-view";
+
     /**
      * {@inheritDoc}
      */
@@ -300,18 +305,26 @@ private void initPage() {
         if (publishedNanopub != null) {
             infoSection.add(new Label("classes-panel").setVisible(false));
         } else {
-            infoSection.add(ThingListPanel.createComponent("classes-panel", ThingListPanel.Mode.CLASSES, ref, "<em>Searching for classes...</em>"));
+            View classesView = View.get(CLASSES_VIEW);
+            QueryRef classesQueryRef = new QueryRef(classesView.getQuery().getQueryId(), "thing", ref);
+            infoSection.add(QueryResultListBuilder.create("classes-panel", classesQueryRef, new ViewDisplay(classesView)).build());
         }
         if (isNanopubId) {
             infoSection.add(new Label("definitions-panel").setVisible(false));
             infoSection.add(new Label("instances-panel").setVisible(false));
-            infoSection.add(new Label("parts-panel").setVisible(false));
             infoSection.add(new Label("templates-panel").setVisible(false));
         } else {
-            infoSection.add(ThingListPanel.createComponent("definitions-panel", ThingListPanel.Mode.DESCRIPTIONS, ref, "<em>Searching for term descriptions...</em>"));
-            infoSection.add(ThingListPanel.createComponent("instances-panel", ThingListPanel.Mode.INSTANCES, ref, "<em>Searching for instances...</em>"));
-            infoSection.add(ThingListPanel.createComponent("parts-panel", ThingListPanel.Mode.PARTS, ref, "<em>Searching for parts...</em>"));
-            infoSection.add(ThingListPanel.createComponent("templates-panel", ThingListPanel.Mode.TEMPLATES, ref, "<em>Searching for templates...</em>"));
+            View describedInView = View.get(DESCRIBED_IN_VIEW);
+            QueryRef describedInQueryRef = new QueryRef(describedInView.getQuery().getQueryId(), "term", ref);
+            infoSection.add(QueryResultNanopubSetBuilder.create("definitions-panel", describedInQueryRef, new ViewDisplay(describedInView)).build());
+
+            View instancesView = View.get(INSTANCES_VIEW);
+            QueryRef instancesQueryRef = new QueryRef(instancesView.getQuery().getQueryId(), "class", ref);
+            infoSection.add(QueryResultListBuilder.create("instances-panel", instancesQueryRef, new ViewDisplay(instancesView)).build());
+
+            View templatesView = View.get(TEMPLATES_VIEW);
+            QueryRef templatesQueryRef = new QueryRef(templatesView.getQuery().getQueryId(), "thing", ref);
+            infoSection.add(QueryResultListBuilder.create("templates-panel", templatesQueryRef, new ViewDisplay(templatesView)).build());
         }
         add(infoSection);
     }