JEditorPane con supporto JavaScript e CSS

Question

Sto lavorando su oscillazione usando JEditorPane ma non è sostenere il Javascript o qualche tag avanzati come <object> ecc e che non supportano il formato di colore, stile del carattere ecc

C'è qualche soluzione in modo quel riquadro dell'editor può visualizzare il file HTML così come viene visualizzato nel normale browser HTML?

Answer 1

• corrente Java6/7 sostenere solo (fino a) Html 3.2 con supporto ridotto per css,

• per Html5 e abbastanza pieno css support da usare JavaFx Components,

• ci sono librerie Java personalizzato con (pieno? ??) sostegno HTML4/5, CSS e JS ma mi piacerebbe essere consigliato l'utilizzo di JavaFX invece

Answer 2

+1 a mKorbel.

Utilizzare JavaFXWebView che supporta HTML5 integrandolo con Swing.

Ecco un esempio:

import java.awt.*; 
import java.awt.event.*; 
import java.net.MalformedURLException; 
import java.net.URL; 
import javafx.application.Platform; 
import javafx.beans.value.ChangeListener; 
import javafx.beans.value.ObservableValue; 
import static javafx.concurrent.Worker.State.FAILED; 
import javafx.embed.swing.JFXPanel; 
import javafx.event.EventHandler; 
import javafx.scene.Scene; 
import javafx.scene.web.WebEngine; 
import javafx.scene.web.WebEvent; 
import javafx.scene.web.WebView; 
import javax.swing.*; 

public class SimpleSwingBrowser implements Runnable { 
    private JFXPanel jfxPanel; 
    private WebEngine engine; 

    private JFrame frame = new JFrame(); 
    private JPanel panel = new JPanel(new BorderLayout()); 
    private JLabel lblStatus = new JLabel(); 

    private JButton btnGo = new JButton("Go"); 
    private JTextField txtURL = new JTextField(); 
    private JProgressBar progressBar = new JProgressBar(); 

    private void initComponents() { 
     jfxPanel = new JFXPanel(); 

     createScene(); 

     ActionListener al = new ActionListener() { 
      @Override public void actionPerformed(ActionEvent e) { 
       loadURL(txtURL.getText()); 
      } 
     }; 

     btnGo.addActionListener(al); 
     txtURL.addActionListener(al); 

     progressBar.setPreferredSize(new Dimension(150, 18)); 
     progressBar.setStringPainted(true); 

     JPanel topBar = new JPanel(new BorderLayout(5, 0)); 
     topBar.setBorder(BorderFactory.createEmptyBorder(3, 5, 3, 5)); 
     topBar.add(txtURL, BorderLayout.CENTER); 
     topBar.add(btnGo, BorderLayout.EAST); 


     JPanel statusBar = new JPanel(new BorderLayout(5, 0)); 
     statusBar.setBorder(BorderFactory.createEmptyBorder(3, 5, 3, 5)); 
     statusBar.add(lblStatus, BorderLayout.CENTER); 
     statusBar.add(progressBar, BorderLayout.EAST); 

     panel.add(topBar, BorderLayout.NORTH); 
     panel.add(jfxPanel, BorderLayout.CENTER); 
     panel.add(statusBar, BorderLayout.SOUTH); 

     frame.getContentPane().add(panel); 
    } 

    private void createScene() { 

     Platform.runLater(new Runnable() { 
      @Override public void run() { 

       WebView view = new WebView(); 
       engine = view.getEngine(); 

       engine.titleProperty().addListener(new ChangeListener<String>() { 
        @Override 
        public void changed(ObservableValue<? extends String> observable, String oldValue, final String newValue) { 
         SwingUtilities.invokeLater(new Runnable() { 
          @Override public void run() { 
           frame.setTitle(newValue); 
          } 
         }); 
        } 
       }); 

       engine.setOnStatusChanged(new EventHandler<WebEvent<String>>() { 
        @Override public void handle(final WebEvent<String> event) { 
         SwingUtilities.invokeLater(new Runnable() { 
          @Override public void run() { 
           lblStatus.setText(event.getData()); 
          } 
         }); 
        } 
       }); 

       engine.locationProperty().addListener(new ChangeListener<String>() { 
        @Override 
        public void changed(ObservableValue<? extends String> ov, String oldValue, final String newValue) { 
         SwingUtilities.invokeLater(new Runnable() { 
          @Override public void run() { 
           txtURL.setText(newValue); 
          } 
         }); 
        } 
       }); 

       engine.getLoadWorker().workDoneProperty().addListener(new ChangeListener<Number>() { 
        @Override 
        public void changed(ObservableValue<? extends Number> observableValue, Number oldValue, final Number newValue) { 
         SwingUtilities.invokeLater(new Runnable() { 
          @Override public void run() { 
           progressBar.setValue(newValue.intValue()); 
          } 
         }); 
        } 
       }); 

       engine.getLoadWorker() 
         .exceptionProperty() 
         .addListener(new ChangeListener<Throwable>() { 

          public void changed(ObservableValue<? extends Throwable> o, Throwable old, final Throwable value) { 
           if (engine.getLoadWorker().getState() == FAILED) { 
            SwingUtilities.invokeLater(new Runnable() { 
             @Override public void run() { 
              JOptionPane.showMessageDialog(
                panel, 
                (value != null) ? 
                engine.getLocation() + "\n" + value.getMessage() : 
                engine.getLocation() + "\nUnexpected error.", 
                "Loading error...", 
                JOptionPane.ERROR_MESSAGE); 
             } 
            }); 
           } 
          } 
         }); 

       jfxPanel.setScene(new Scene(view)); 
      } 
     }); 
    } 

    public void loadURL(final String url) { 
     Platform.runLater(new Runnable() { 
      @Override public void run() { 
       String tmp = toURL(url); 

       if (tmp == null) { 
        tmp = toURL("http://" + url); 
       } 

       engine.load(tmp); 
      } 
     }); 
    } 

    private static String toURL(String str) { 
     try { 
      return new URL(str).toExternalForm(); 
     } catch (MalformedURLException exception) { 
       return null; 
     } 
    } 

    @Override public void run() { 

     frame.setPreferredSize(new Dimension(1024, 600)); 
     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 

     initComponents(); 

     loadURL("http://oracle.com"); 

     frame.pack(); 
     frame.setVisible(true); 
    } 

    public static void main(String[] args) { 
     SwingUtilities.invokeLater(new SimpleSwingBrowser()); 
    } 
} 

This link fornisce anche alcuni esempi utili di WebView, dimostrando in uso of JavaScript

Riferimenti:

• Integrating JavaFX into Swing Applications
• Add Java FX 2.0 to existing Netbeans project