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  1. JDK
  2. JDK-8093037

TableView: incorrect update of focusedCell on navigating with ctrl-up/down

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 8u5
    • Fix Version/s: 8u40
    • Component/s: javafx

      Description

      To reproduce, run example below and follow the steps as outlined.

      The expected behaviour on ctrl-up/down would be:

      - either the focusedCell is updated the same as when navigating with the undecorated nav keys
      - or the focusedCell is kept on the cell where the ctrl-nav started (astonishingly the behaviour in win7 explorer)

      Either way, the important part from a usability perspective is to _have_ a _cell_ that's focused, that is a target cell for starting an edit f.i. by F2.

      import javafx.application.Application;
      import javafx.collections.FXCollections;
      import javafx.collections.ObservableList;
      import javafx.scene.Scene;
      import javafx.scene.control.TableColumn;
      import javafx.scene.control.TableView;
      import javafx.scene.control.cell.PropertyValueFactory;
      import javafx.scene.layout.BorderPane;
      import javafx.stage.Stage;

      import java.util.Locale;
      import java.util.logging.Logger;

      /**
       * Simple demo to demonstrate the focusedCell bug.
       *
       * To reproduce:
       *
       * - click into any cell: focusedCell has both row and column
       * - move around with arrow keys: focusedCell changes both row and column
       * according to the navigation (expected behaviour)
       * - move up/down with ctrl-up/down: focusedCell row
       * keeps updating according to navigation, column is set to null (bug)
       */
      public class TableFocusedCell extends Application {
          private static final Logger LOG = Logger.getLogger(TableFocusedCell.class.getName());
          
          private final ObservableList<Locale> data = FXCollections.observableArrayList(Locale.getAvailableLocales());

          private final TableView<Locale> table = new TableView<>(data);

          @Override public void start(Stage stage) {
              stage.setTitle("Table FocusedCell Bug");
              // add a listener to see loosing the column
              table.getFocusModel().focusedCellProperty().addListener((p, oldValue, newValue)-> {
                  LOG.info("old/new " + oldValue + "\n " + newValue);
              });
              TableColumn<Locale, String> language = new TableColumn<>(
                      "Language");
              language.setCellValueFactory(new PropertyValueFactory<Locale, String>("displayLanguage"));
              TableColumn<Locale, String> country = new TableColumn<>("Country");
              country.setCellValueFactory(new PropertyValueFactory<>("country"));
              table.setItems(data);
              table.getColumns().addAll(language, country);
              Scene scene = new Scene(new BorderPane(table));
              stage.setScene(scene);
              stage.show();
          }

          public static void main(String[] args) {
              launch(args);
          }
      }

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            Assignee:
            jgiles Jonathan Giles
            Reporter:
            fastegal Jeanette Winzenburg
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              Dates

              Created:
              Updated:
              Resolved:
              Imported: