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  1. JDK
  2. JDK-8256138

JavaFX WebView does not handle css transform:translate3d

    Details

    • Subcomponent:
      web
    • Introduced In Version:
    • CPU:
      x86_64
    • OS:
      generic

      Description

      ADDITIONAL SYSTEM INFORMATION :
      Windows 10 1903 + OpenJDK 15.0.1 + OpenJFX 15.0.1
      Windows 10 1903 + OpenJDK 15.0.1 + OpenJFX 16-ea+4
      Linux Ubuntu 20.04 + OpenJDK 15.0.1 + OpenJFX 15.0.1

      A DESCRIPTION OF THE PROBLEM :
      My application uses HTML/CSS to build a menu that is hidden at first and "slides in" from the left side when the menu button is clicked. I've included a short sample HTML file (with all HTML, CSS and JavaScript together) that demonstrates the problem. In a browser (FireFox), this HTML works fine. But when the HTML is rendered in a WebView container, the menu doesn't slide in. I've reproduced the problem with OpenJFX 15.0.1 and OpenJFX 16-ea+4 on Windows 10 using the OpenJDK 15.0.1 version of Java. I've also reproduced the problem on Linux Ubuntu 20.04 using OpenJFX 15.0.1 and OpenJDK 15.0.1. When I revert to using either OpenJFX 11.0.2 LTS or OpenJFX 12.0.1, the problem does not occur.

      REGRESSION : Last worked in version 12

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      1. Load the main.html file into a browser (e.g. Firefox)
      2. Click the "Click here to open/close Menu" link
      3. The menu appears by sliding-in from the left side of the application window
      4. Start the App class using OpenJDK 15.0.1 and OpenJFX 15.0.1 or OpenJFX 16-ea+4, making sure the main.html file is accessible to the App
      5. Click the "Click here to open/close Menu" link in the application window
      6. The menu never appears (does not slide-in from the left side)

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      A blue-colored menu with the title "Menu" and a list of three items should slide-in from the left side of the app windows. If you start the same App.class with OpenJDK 15.0.1 and OpenJFX 11.0.2 LTS or OpenJFX 12.0.1, the menu slides-in as expected.
      ACTUAL -
      The menu does not appear at all (does not slide-in from the left). In some cases, the menu may appear some time later (5-15 seconds) after some other event occurs (like mousing-over the "Click here ..." link again); but when it appears and under what circumstances is not consistent. Most times, the menu simply does not appear at all.

      ---------- BEGIN SOURCE ----------
      main.html
      -----------------
      <!DOCTYPE html>
      <html lang="en">

      <style>
      html, body {
         overflow: hidden;
      }

      body {
         font-size: 1.1em;
         margin: 10px;
      }

      .menu-button {
         cursor: pointer;
      }

      .left-slidein {
         transform: translate3d(-250px, 0, 0);
         position: absolute;
         width: 150px;
         background: #aa99ff;
         color: white;
         left: 0;
         top: 50px;
         height: 100%;
         transition: all .5s;
      }

      .left-slidein.active {
         transform: translate3d(0, 0, 0);
      }

      .left-slidein h2 {
         padding: 10px;
         text-shadow: 1px 1px 1px #000;
         border-bottom: 2px solid white;
         margin:5px 0px 0px 0px;
      }

      .main-menu a {
         display: block;
         text-decoration: none;
         color: #fff;
         font-size: 1.1em;
         padding: 15px;
         border-bottom: 1px solid white;
      }

      .main-menu a:hover {
         background: #808080;
      }

      </style>

      <script>
      function slideinLeftMenu() {
         document.getElementById('left-slidein').classList.toggle('active');
         slideoutRightMenu();
      }

      function slideoutLeftMenu() {
         document.getElementById('left-slidein').classList.remove('active');
      }
      </script>

         <head>
            <meta charset="utf-8"/>
            <title>OpenJFX Bug Demo</title>
         </head>
         <body>
            <!-- div><a href="#" onclick="slideinLeftMenu()">Open/Close Menu</a></div -->
            <div id="menu-button" class="menu-button" onclick="slideinLeftMenu()">Click here to open/close Menu</div>
            <div id="left-slidein" class="left-slidein">
               <h2>Menu</h2>
               <div class="main-menu">
                  <nav>
                     <a id="item1" href="#" onclick="slideoutLeftMenu();">Item 1</a>
                     <a id="item2" href="#" onclick="slideoutLeftMenu();">Item 2</a>
                     <a id="item3" href="#" onclick="slideoutLeftMenu();">Item 3</a>
                  </nav>
               </div>
            </div>
         </body>

      </html>
      -----------------
      App.java
      -----------------
      package bug.openjfx;

      import java.io.BufferedReader;
      import java.io.FileInputStream;
      import java.io.FileNotFoundException;
      import java.io.InputStream;
      import java.io.InputStreamReader;
      import java.net.URL;

      import org.w3c.dom.Document;

      import javafx.application.Application;
      import javafx.application.Platform;
      import javafx.beans.value.ChangeListener;
      import javafx.beans.value.ObservableValue;
      import javafx.concurrent.Worker.State;
      import javafx.scene.Scene;
      import javafx.scene.layout.StackPane;
      import javafx.scene.web.WebEngine;
      import javafx.scene.web.WebView;
      import javafx.stage.Stage;

      public class App extends Application {

         private Stage primaryStage;
         private WebView webView;
         private WebEngine webEngine;
         protected Document document;
         
         public static void main(String[] args) {
            launch(args);
            System.exit(0);
         }

         @Override
         public void start(Stage stage) throws Exception {
            this.primaryStage = stage;
            Platform.setImplicitExit(true);
            primaryStage.setTitle("OpenJFX Bug Demo");
            webView = new WebView();
            webEngine = webView.getEngine();
            StackPane appLayout = new StackPane();
            appLayout.getChildren().add(webView);
            Scene scene = new Scene(appLayout);
            primaryStage.setScene(scene);
            primaryStage.setWidth(400);
            primaryStage.setHeight(400);
            webEngine.getLoadWorker().stateProperty().addListener( new ChangeListener<State>() {
               public void changed(@SuppressWarnings("rawtypes") ObservableValue ov, State oldState, State newState) {
                  if (newState == State.SUCCEEDED) {
                     document = webEngine.getDocument();
                  }
               }
            });
            String document = readDocumentAsString("main.html");
            webEngine.loadContent(document);
            primaryStage.show();
         }

         private String readDocumentAsString(String documentName) {
            URL url = this.getClass().getResource(documentName);
            String document = readFileContentsAsString(url.toString().substring(6));
            return document;
         }
         
         private String readFileContentsAsString(String filename) {
            InputStream inStream = getFileResourceInputStream(filename);
            StringBuffer fileString = new StringBuffer();
            try {
               BufferedReader br = new BufferedReader(new InputStreamReader(inStream));
               String lineRead = br.readLine();
               while (null != lineRead) {
                  fileString.append(lineRead).append("\n");
                  lineRead = br.readLine();
               }
               br.close();
            } catch (Exception e) {
               fileString = new StringBuffer();
            }
            return fileString.toString();
         }

         private InputStream getFileResourceInputStream(String filename) {
            InputStream inStream = null;
            try {
               inStream = new FileInputStream(filename);
            } catch (FileNotFoundException ignore) {
            }
            return inStream;
         }
      }
      -----------------
      ---------- END SOURCE ----------

      CUSTOMER SUBMITTED WORKAROUND :
      The only work-around I have found is to revert to an older release of OpenJFX. I was previously using OpenJFX 12.0.1 on Windows 10 and the problem does not occur there. I also tried OpenJFX 11.0.2 LTS on both Windows 10 and Ubuntu 20.04 and the problem does not occur with this version on either OS.

      FREQUENCY : always


        Attachments

        1. App.java
          3 kB
        2. main.html
          2 kB

          Activity

            People

            • Assignee:
              ajoseph Arun Joseph
              Reporter:
              webbuggrp Webbug Group
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              Dates

              • Created:
                Updated: