Source Code : Bring up a browser

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Bring up a browser

/*******************************************************************************
 * Copyright (c) 2000, 2004 IBM Corporation and others. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors: IBM Corporation - initial API and implementation
 ******************************************************************************/

/*
 * Browser example snippet: bring up a browser
 * 
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */

import org.eclipse.swt.SWT;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.browser.LocationEvent;
import org.eclipse.swt.browser.LocationListener;
import org.eclipse.swt.browser.ProgressEvent;
import org.eclipse.swt.browser.ProgressListener;
import org.eclipse.swt.browser.StatusTextEvent;
import org.eclipse.swt.browser.StatusTextListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
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;

public class BringUpBrowser {
  public static void main(String[] args) {
    Display display = new Display();
    final Shell shell = new Shell(display);
    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 Browser browser = new Browser(shell, SWT.NONE);
    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 = new Listener() {
      public void handleEvent(Event 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() {
      public void changed(ProgressEvent event) {
        if (event.total == 0)
          return;
        int ratio = event.current * 100 / event.total;
        progressBar.setSelection(ratio);
      }

      public void completed(ProgressEvent event) {
        progressBar.setSelection(0);
      }
    });
    browser.addStatusTextListener(new StatusTextListener() {
      public void changed(StatusTextEvent event) {
        status.setText(event.text);
      }
    });
    browser.addLocationListener(new LocationListener() {
      public void changed(LocationEvent event) {
        if (event.top)
          location.setText(event.location);
      }

      public void changing(LocationEvent event) {
      }
    });
    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, new Listener() {
      public void handleEvent(Event e) {
        browser.setUrl(location.getText());
      }
    });

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

    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }
}


           
       

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