Add search query update result count

src/main/java/org/jabref/gui/StateManager.java

@@ -6,8 +6,10 @@
 import java.util.stream.Collectors;
 
 import javafx.beans.binding.Bindings;
+import javafx.beans.property.IntegerProperty;
 import javafx.beans.property.ReadOnlyListProperty;
 import javafx.beans.property.ReadOnlyListWrapper;
+import javafx.beans.property.SimpleIntegerProperty;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
 import javafx.collections.ObservableMap;
@@ -34,6 +36,7 @@ public class StateManager {
     private final ObservableList<BibEntry> selectedEntries = FXCollections.observableArrayList();
     private final ObservableMap<BibDatabaseContext, ObservableList<GroupTreeNode>> selectedGroups = FXCollections.observableHashMap();
     private final OptionalObjectProperty<SearchQuery> activeSearchQuery = OptionalObjectProperty.empty();
+    private final IntegerProperty searchResultSize = new SimpleIntegerProperty();
 
     public StateManager() {
         activeGroups.bind(Bindings.valueAt(selectedGroups, activeDatabase.orElse(null)));
@@ -79,7 +82,7 @@ public Optional<BibDatabaseContext> getActiveDatabase() {
 
     public List<BibEntry> getEntriesInCurrentDatabase() {
         return OptionalUtil.flatMap(activeDatabase.get(), BibDatabaseContext::getEntries)
-                .collect(Collectors.toList());
+                           .collect(Collectors.toList());
     }
 
     public void clearSearchQuery() {
@@ -89,4 +92,12 @@ public void clearSearchQuery() {
     public void setSearchQuery(SearchQuery searchQuery) {
         activeSearchQuery.setValue(Optional.of(searchQuery));
     }
+
+    public IntegerProperty searchResultSizeProperty() {
+        return searchResultSize;
+    }
+
+    public void setSearchResultSize(int size) {
+        searchResultSize.setValue(size);
+    }
 }

src/main/java/org/jabref/gui/maintable/MainTableDataModel.java

@@ -4,6 +4,7 @@
 import java.util.Optional;
 
 import javafx.beans.binding.Bindings;
+import javafx.collections.ListChangeListener;
 import javafx.collections.ObservableList;
 import javafx.collections.transformation.FilteredList;
 import javafx.collections.transformation.SortedList;
@@ -30,7 +31,11 @@ public MainTableDataModel(BibDatabaseContext context) {
         entriesFiltered.predicateProperty().bind(
                 Bindings.createObjectBinding(() -> this::isMatched,
                         Globals.stateManager.activeGroupProperty(), Globals.stateManager.activeSearchQueryProperty())
+
         );
+        entriesFiltered.addListener((ListChangeListener<BibEntryTableViewModel>) c -> {
+            Globals.stateManager.setSearchResultSize(entriesFiltered.size());
+        });
 
         // We need to wrap the list since otherwise sorting in the table does not work
         entriesSorted = new SortedList<>(entriesFiltered);

src/main/java/org/jabref/gui/search/GlobalSearchBar.java

@@ -42,6 +42,7 @@
 import org.jabref.gui.keyboard.KeyBinding;
 import org.jabref.gui.keyboard.KeyBindingRepository;
 import org.jabref.gui.maintable.MainTable;
+import org.jabref.gui.search.rules.describer.SearchDescribers;
 import org.jabref.gui.util.DefaultTaskExecutor;
 import org.jabref.logic.l10n.Localization;
 import org.jabref.logic.search.SearchQuery;
@@ -208,6 +209,12 @@ public void performSearch() {
         }
 
         Globals.stateManager.setSearchQuery(searchQuery);
+
+        updateResults(Globals.stateManager.searchResultSizeProperty().get(),
+                      SearchDescribers.getSearchDescriberFor(searchQuery).getDescription(),
+                      searchQuery.isGrammarBasedSearch());
+        getSearchQueryHighlightObservable().fireSearchlistenerEvent(searchQuery);
+
     }
 
     private void informUserAboutInvalidSearchQuery() {