Laboratoire ICAR » Plateforme TXM

package snippet;

import java.util.concurrent.Semaphore;

import org.eclipse.swt.SWT;

import org.eclipse.swt.SWTError;

import org.eclipse.swt.browser.CloseWindowListener;

import org.eclipse.swt.browser.LocationEvent;

import org.eclipse.swt.browser.LocationListener;

import org.eclipse.swt.browser.OpenWindowListener;

import org.eclipse.swt.browser.ProgressEvent;

import org.eclipse.swt.browser.ProgressListener;

import org.eclipse.swt.browser.StatusTextListener;

import org.eclipse.swt.browser.TitleListener;

import org.eclipse.swt.browser.VisibilityWindowAdapter;

import org.eclipse.swt.events.KeyEvent;

import org.eclipse.swt.events.KeyListener;

import org.eclipse.swt.events.MouseEvent;

import org.eclipse.swt.events.MouseListener;

import org.eclipse.swt.graphics.Point;

import org.eclipse.swt.layout.GridData;

import org.eclipse.swt.layout.GridLayout;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Display;

import org.eclipse.swt.widgets.Event;

import org.eclipse.swt.widgets.Label;

import org.eclipse.swt.widgets.Listener;

import org.eclipse.swt.widgets.ProgressBar;

import org.eclipse.swt.widgets.Shell;

import org.eclipse.swt.widgets.Text;

import org.eclipse.swt.widgets.ToolBar;

import org.eclipse.swt.widgets.ToolItem;

import javafx.application.Platform;

import javafx.embed.swt.FXCanvas;

import javafx.scene.Group;

import javafx.scene.Scene;

import javafx.scene.paint.Color;

import javafx.scene.web.WebView;

/**

 * WebView (webkit) wrapper.

 * not finished, see work to be done in org.eclipse.swt.browser.Webkit.class to make this class fully operational

 *

 * @author mdecorde

 *

 */

public class JFXBrowser extends FXCanvas {

        protected static final String NOMEDIA = ""; //$NON-NLS-1$

        private WebView jfxBrowser;

        // private GLComposite videoComposite;

        public WebView getEmbeddedMediaPlayer() {

                return jfxBrowser;

        }

        Semaphore s = new Semaphore(1);

        // private FXCanvas fxCanvas;

        Point previousP;

        public JFXBrowser(Composite parent, int style) {

                super(parent, style);

                GridLayout gl = new GridLayout(1, true);

                gl.horizontalSpacing = 0;

                this.setLayout(gl);

                // THE PLAYER

                // if (RuntimeUtil.isMac()) {

                // try {

                // LibC.INSTANCE.setenv("VLC_PLUGIN_PATH", "/Applications/VLC.app/Contents/MacOS/plugins", 1);

                // }

                // catch (Exception ex) {

                // ex.printStackTrace();

                // }

                // }

                // videoComposite = new GLComposite(this, SWT.NONE, "Video");

                GridData gdata = new GridData(SWT.FILL, SWT.FILL, true, true);

                this.setLayoutData(gdata);

                jfxBrowser = null;

                this.addListener(SWT.Resize, new Listener() {

                        @Override

                        public void handleEvent(Event e) {

                                resizeView();

                        }

                });

                // fxCanvas = new FXCanvas(videoComposite, SWT.BORDER);

                // GridData gdata2 = new GridData(SWT.FILL, SWT.FILL, true, true);

                // fxCanvas.setLayoutData(gdata2);

                initializeBrowser();

        }

        // @Override

        // public void addMouseListener(MouseListener listener) {

        // // jfxBrowser.setOnMousePressed(new EventHandler<MouseEvent>() {

        // //

        // // @Override

        // // public void handle(MouseEvent event) {

        // // // TODO Auto-generated method stub

        // //

        // // }

        // // });

        // fxCanvas.addMouseListener(listener);

        // }

        protected void resizeView() {

                if (jfxBrowser != null) {

                        Point p = this.getSize();

                        // if (previousP == null || (p.x != previousP.x && p.y != previousP.y)) { // ensure size changed

                        jfxBrowser.setPrefHeight(p.y);

                        // jfxBrowser.setMaxWidth(p.x);

                        jfxBrowser.setPrefWidth(p.x);

                        previousP = p;

                        // }

                }

        }

        private Group group;

        private Scene scene;

        protected boolean initializeBrowser() {

                Platform.setImplicitExit(false);

                jfxBrowser = new WebView();

                group = new Group(jfxBrowser);

                // scene = new Scene(group, Color.rgb(fxCanvas.getBackground().getRed(), fxCanvas.getBackground().getGreen(), fxCanvas.getBackground().getBlue()));

                scene = new Scene(group, Color.rgb(0, 0, 0));

                this.setScene(jfxBrowser.getScene());

                return true;

        }

        public boolean back() {

                try {

                        jfxBrowser.getEngine().getHistory().go(-1);

                        return true;

                }

                catch (Exception e) {

                        return false;

                }

        }

        public boolean forward() {

                try {

                        jfxBrowser.getEngine().getHistory().go(1);

                        return true;

                }

                catch (Exception e) {

                        return false;

                }

        }

        public void stop() {

                // jfxBrowser.getEngine().canc();

                System.out.println("TODO JFXBrowser.stop...");

        }

        public void refresh() {

                jfxBrowser.getEngine().reload();

        }

        public void setUrl(String url) {

                jfxBrowser.getEngine().load(url);

        }

        public void addProgressListener(ProgressListener progressListener) {

                // TODO Auto-generated method stub

                System.out.println("TODO JFXBrowser.addProgressListener(" + progressListener + ")");

        }

        public void addStatusTextListener(StatusTextListener listener) {

                // TODO Auto-generated method stub

                System.out.println("TODO JFXBrowser.addStatusTextListener(" + listener + ")");

        }

        public void addLocationListener(LocationListener locationListener) {

                // TODO Auto-generated method stub

                System.out.println("TODO JFXBrowser.addLocationListener(" + locationListener + ")");

        }

        public void addOpenWindowListener(OpenWindowListener listener) {

                // TODO Auto-generated method stub

                System.out.println("TODO JFXBrowser.addOpenWindowListener(" + listener + ")");

        }

        public void addVisibilityWindowListener(VisibilityWindowAdapter visibilityWindowAdapter) {

                // TODO Auto-generated method stub

                System.out.println("TODO JFXBrowser.addVisibilityWindowListener(" + visibilityWindowAdapter + ")");

        }

        public void addCloseWindowListener(CloseWindowListener listener) {

                // TODO Auto-generated method stub

                System.out.println("TODO JFXBrowser.addCloseWindowListener(" + listener + ")");

        }

        public void addTitleListener(TitleListener listener) {

                // TODO Auto-generated method stub

                System.out.println("TODO JFXBrowser.addTitleListener(" + listener + ")");

        }

        public void removeLocationListener(LocationListener locationListener) {

                // TODO Auto-generated method stub

                System.out.println("TODO JFXBrowser.removeLocationListener(" + locationListener + ")");

        }

        public static void main(String[] args) {

                Display display = new Display();

                final Shell shell = new Shell(display);

                shell.setText("Snippet 128");

                GridLayout gridLayout = new GridLayout();

                gridLayout.numColumns = 3;

                shell.setLayout(gridLayout);

                ToolBar toolbar = new ToolBar(shell, SWT.NONE);

                ToolItem itemBack = new ToolItem(toolbar, SWT.PUSH);

                itemBack.setText("Back");

                ToolItem itemForward = new ToolItem(toolbar, SWT.PUSH);

                itemForward.setText("Forward");

                ToolItem itemStop = new ToolItem(toolbar, SWT.PUSH);

                itemStop.setText("Stop");

                ToolItem itemRefresh = new ToolItem(toolbar, SWT.PUSH);

                itemRefresh.setText("Refresh");

                ToolItem itemGo = new ToolItem(toolbar, SWT.PUSH);

                itemGo.setText("Go");

                GridData data = new GridData();

                data.horizontalSpan = 3;

                toolbar.setLayoutData(data);

                Label labelAddress = new Label(shell, SWT.NONE);

                labelAddress.setText("Address");

                final Text location = new Text(shell, SWT.BORDER);

                data = new GridData();

                data.horizontalAlignment = GridData.FILL;

                data.horizontalSpan = 2;

                data.grabExcessHorizontalSpace = true;

                location.setLayoutData(data);

                final JFXBrowser browser;

                try {

                        browser = new JFXBrowser(shell, SWT.NONE);

                }

                catch (SWTError e) {

                        System.out.println("Could not instantiate Browser: " + e.getMessage());

                        display.dispose();

                        return;

                }

                data = new GridData();

                data.horizontalAlignment = GridData.FILL;

                data.verticalAlignment = GridData.FILL;

                data.horizontalSpan = 3;

                data.grabExcessHorizontalSpace = true;

                data.grabExcessVerticalSpace = true;

                browser.setLayoutData(data);

                final Label status = new Label(shell, SWT.NONE);

                data = new GridData(GridData.FILL_HORIZONTAL);

                data.horizontalSpan = 2;

                status.setLayoutData(data);

                final ProgressBar progressBar = new ProgressBar(shell, SWT.NONE);

                data = new GridData();

                data.horizontalAlignment = GridData.END;

                progressBar.setLayoutData(data);

                /* event handling */

                Listener listener = event -> {

                        ToolItem item = (ToolItem) event.widget;

                        String string = item.getText();

                        if (string.equals("Back"))

                                browser.back();

                        else if (string.equals("Forward"))

                                browser.forward();

                        else if (string.equals("Stop"))

                                browser.stop();

                        else if (string.equals("Refresh"))

                                browser.refresh();

                        else if (string.equals("Go"))

                                browser.setUrl(location.getText());

                };

                browser.addProgressListener(new ProgressListener() {

                        @Override

                        public void changed(ProgressEvent event) {

                                if (event.total == 0) return;

                                int ratio = event.current * 100 / event.total;

                                progressBar.setSelection(ratio);

                        }

                        @Override

                        public void completed(ProgressEvent event) {

                                progressBar.setSelection(0);

                        }

                });

                browser.addLocationListener(new LocationListener() {

                        @Override

                        public void changing(LocationEvent event) {}

                        @Override

                        public void changed(LocationEvent event) {

                                if (event.top) location.setText(event.location);

                        }

                });

                // browser.addLocationListener(LocationListener.changed(event -> {

                // if (event.top) location.setText(event.location);

                // }));

                itemBack.addListener(SWT.Selection, listener);

                itemForward.addListener(SWT.Selection, listener);

                itemStop.addListener(SWT.Selection, listener);

                itemRefresh.addListener(SWT.Selection, listener);

                itemGo.addListener(SWT.Selection, listener);

                location.addListener(SWT.DefaultSelection, e -> browser.setUrl(location.getText()));

                browser.addMouseListener(new MouseListener() {

                        @Override

                        public void mouseUp(MouseEvent e) {

                                System.out.println("M UP");

                        }

                        @Override

                        public void mouseDown(MouseEvent e) {

                                System.out.println("M DOWN");

                        }

                        @Override

                        public void mouseDoubleClick(MouseEvent e) {

                                System.out.println("M DCLICK");

                        }

                });

                browser.addKeyListener(new KeyListener() {

                        @Override

                        public void keyReleased(KeyEvent e) {}

                        @Override

                        public void keyPressed(KeyEvent e) {

                                System.out.println("K " + e);

                        }

                });

                shell.open();

                // browser.setUrl("http://eclipse.org");

                while (!shell.isDisposed()) {

                        if (!display.readAndDispatch())

                                display.sleep();

                }

                display.dispose();

        }

        public WebView getWebView() {

                return this.jfxBrowser;

        }

        public String getUrl() {

                return jfxBrowser.getEngine().getLocation();

        }

        public boolean isBackEnabled() {

                return jfxBrowser.getEngine().getHistory().getCurrentIndex() > 0;

        }

        public boolean isForwardEnabled() {

                return jfxBrowser.getEngine().getHistory().getCurrentIndex() < jfxBrowser.getEngine().getHistory().getEntries().size();

        }

        public boolean setUrl(String url, String postData, String[] headers) {

                // TODO Auto-generated method stub

                jfxBrowser.getEngine().load(url);

                return true;

        }

}