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  1. JDK
  2. JDK-8307098

Pressed state gets stuck after drag and drop

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Details

    • Bug
    • Resolution: Unresolved
    • P3
    • tbd
    • jfx11, jfx20, 8, jfx17, jfx21
    • javafx
    • generic
    • generic

    Description

      ADDITIONAL SYSTEM INFORMATION :
      Seen on both Windows 10 and RHEL 8

      A DESCRIPTION OF THE PROBLEM :
      The Node#pressed state is maintained as expected if you press and release the mouse over a node. However if that node is an origin of a drag and drop operation the pressed state remains true.

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      Run the sample application. This visualises the pressed state of the circle using red for pressed and black for not pressed.

      Start a drag operation from the circle and then release within the stage outside the circle

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      Circle to return to black (pressed = false)
      ACTUAL -
      Circle remains red (pressed = true)

      ---------- BEGIN SOURCE ----------
      import javafx.application.Application;
      import javafx.scene.Scene;
      import javafx.scene.input.ClipboardContent;
      import javafx.scene.input.DataFormat;
      import javafx.scene.input.Dragboard;
      import javafx.scene.input.TransferMode;
      import javafx.scene.layout.Pane;
      import javafx.scene.paint.Color;
      import javafx.scene.shape.Circle;
      import javafx.stage.Stage;

      public class StuckPressedState extends Application {

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

          @Override
          public void start(Stage primaryStage) throws Exception {
              Circle circle = new Circle(100, 100, 20);
              circle.setOnDragDetected(event -> {
                  Dragboard db = circle.startDragAndDrop(TransferMode.ANY);
                  ClipboardContent clipBoardContent = new ClipboardContent();
                  clipBoardContent.putString("foo");
                  db.setContent(clipBoardContent);
              });
              circle.pressedProperty().addListener((obs, oldValue, newValue) -> {
                  System.out.println("Pressed " + newValue);
                  if (Boolean.TRUE.equals(newValue)) {
                      circle.setFill(Color.RED);
                  } else {
                      circle.setFill(Color.BLACK);
                  }
              });
              Pane root = new Pane(circle);
              root.setOnDragOver(event -> event.acceptTransferModes(TransferMode.ANY));
              root.setOnDragDropped(event -> {
                  System.out.println("Dropped " + event.getDragboard().getContent(DataFormat.PLAIN_TEXT));
                  event.setDropCompleted(true);
              });
              root.setPrefSize(200, 200);
              primaryStage.setScene(new Scene(root));
              primaryStage.show();
          }
      }
      ---------- END SOURCE ----------

      CUSTOMER SUBMITTED WORKAROUND :
      No known workaround

      FREQUENCY : always


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            aghaisas Ajit Ghaisas
            webbuggrp Webbug Group
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            Dates

              Created:
              Updated: