examples/org.eclipse.swt.examples.ole.win32/src/org/eclipse/swt/examples/ole/win32/OleBrowserView.java - platform/eclipse.platform.swt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2003 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
  *******************************************************************************/
 package org.eclipse.swt.examples.ole.win32;


 import org.eclipse.swt.*;
 import org.eclipse.swt.events.*;
 import org.eclipse.swt.layout.*;
 import org.eclipse.swt.ole.win32.*;
 import org.eclipse.swt.widgets.*;
 import org.eclipse.ui.part.*;

 /**
  * Ole uses <code>org.eclipse.swt</code> to demonstrate Win32 OLE / ActiveX
  * integration.
  *
  * @see ViewPart
  */
 public class OleBrowserView extends ViewPart {

 	private Composite      displayArea;

 	private OleFrame       webFrame;
 	private OleWebBrowser  webBrowser;
 	private Text           webUrl;
 	private OleControlSite webControlSite;
 	private ProgressBar    webProgress;
 	private Label          webStatus;
 	private Button         webNavigateButton;

 	private ToolItem webCommandBackward;
 	private ToolItem webCommandForward;
 	private ToolItem webCommandHome;
 	private ToolItem webCommandStop;
 	private ToolItem webCommandRefresh;
 	private ToolItem webCommandSearch;

 	private boolean activated = false;

 	private static final int DISPID_AMBIENT_DLCONTROL = -5512;
 	private static final int DLCTL_NO_SCRIPTS = 0x80;

 	/**
 	 * Constructs the OLE browser view.
 	 */
 	public OleBrowserView() {
 		OlePlugin.initResources();
 	}

 	/**
 	 * Creates the example.
 	 *
 	 * @see ViewPart#createPartControl
 	 */
 	public void createPartControl(Composite parent) {
 		displayArea = new Composite(parent, SWT.NONE);

 		GridLayout gridLayout = new GridLayout();
 		gridLayout.numColumns = 3;
 		displayArea.setLayout(gridLayout);

 		createToolbar();
 		createBrowserFrame();
 		createStatusArea();
 		createBrowserControl();
 	}

 	/**
 	 * Cleanup
 	 */
 	public void dispose() {
 		if (activated) {
 			webControlSite.deactivateInPlaceClient();
 			activated = false;
 		}
 		if (webBrowser != null) webBrowser.dispose();
 		webBrowser = null;
 		super.dispose();
 	}

 	/**
 	 * Called when we must grab focus.
 	 *
 	 * @see org.eclipse.ui.part.ViewPart#setFocus
 	 */
 	public void setFocus()  {
 		webUrl.setFocus();
 	}

 	/**
 	 * Creates the Web browser toolbar.
 	 */
 	private void createToolbar() {
 		// Add a toolbar
 		ToolBar bar = new ToolBar(displayArea, SWT.NONE);
 		GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
 		gridData.horizontalSpan = 3;
 		bar.setLayoutData(gridData);

 		// Add a button to navigate backwards through previously visited web sites
 		webCommandBackward = new ToolItem(bar, SWT.NONE);
 		webCommandBackward.setToolTipText(OlePlugin.getResourceString("browser.Back.tooltip"));
 		webCommandBackward.setText(OlePlugin.getResourceString("browser.Back.text"));
 		webCommandBackward.setImage(OlePlugin.images[OlePlugin.biBack]);
 		webCommandBackward.setEnabled(false);
 		webCommandBackward.addListener(SWT.Selection, new Listener() {
 			public void handleEvent(Event e) {
 				if (webBrowser == null) return;
 				webBrowser.GoBack();
 			}
 		});

 		// Add a button to navigate forward through previously visited web sites
 		webCommandForward = new ToolItem(bar, SWT.NONE);
 		webCommandForward.setToolTipText(OlePlugin.getResourceString("browser.Forward.tooltip"));
 		webCommandForward.setText(OlePlugin.getResourceString("browser.Forward.text"));
 		webCommandForward.setImage(OlePlugin.images[OlePlugin.biForward]);
 		webCommandForward.setEnabled(false);
 		webCommandForward.addListener(SWT.Selection, new Listener() {
 			public void handleEvent(Event e) {
 				if (webBrowser == null) return;
 				webBrowser.GoForward();
 			}
 		});

 		// Add a separator
 		new ToolItem(bar, SWT.SEPARATOR);

 		// Add a button to navigate to the Home page
 		webCommandHome = new ToolItem(bar, SWT.NONE);
 		webCommandHome.setToolTipText(OlePlugin.getResourceString("browser.Home.tooltip"));
 		webCommandHome.setText(OlePlugin.getResourceString("browser.Home.text"));
 		webCommandHome.setImage(OlePlugin.images[OlePlugin.biHome]);
 		webCommandHome.setEnabled(false);
 		webCommandHome.addListener(SWT.Selection, new Listener() {
 			public void handleEvent(Event e) {
 				if (webBrowser == null) return;
 				webBrowser.GoHome();
 			}
 		});

 		// Add a button to abort web page loading
 		webCommandStop = new ToolItem(bar, SWT.NONE);
 		webCommandStop.setToolTipText(OlePlugin.getResourceString("browser.Stop.tooltip"));
 		webCommandStop.setText(OlePlugin.getResourceString("browser.Stop.text"));
 		webCommandStop.setImage(OlePlugin.images[OlePlugin.biStop]);
 		webCommandStop.setEnabled(false);
 		webCommandStop.addListener(SWT.Selection, new Listener() {
 			public void handleEvent(Event e) {
 				if (webBrowser == null) return;
 				webBrowser.Stop();
 			}
 		});

 		// Add a button to refresh the current web page
 		webCommandRefresh = new ToolItem(bar, SWT.NONE);
 		webCommandRefresh.setToolTipText(OlePlugin.getResourceString("browser.Refresh.tooltip"));
 		webCommandRefresh.setText(OlePlugin.getResourceString("browser.Refresh.text"));
 		webCommandRefresh.setImage(OlePlugin.images[OlePlugin.biRefresh]);
 		webCommandRefresh.setEnabled(false);
 		webCommandRefresh.addListener(SWT.Selection, new Listener() {
 			public void handleEvent(Event e) {
 				if (webBrowser == null) return;
 				webBrowser.Refresh();
 			}
 		});

 		// Add a separator
 		new ToolItem(bar, SWT.SEPARATOR);

 		// Add a button to search the web
 		webCommandSearch = new ToolItem(bar, SWT.NONE);
 		webCommandSearch.setToolTipText(OlePlugin.getResourceString("browser.Search.tooltip"));
 		webCommandSearch.setText(OlePlugin.getResourceString("browser.Search.text"));
 		webCommandSearch.setImage(OlePlugin.images[OlePlugin.biSearch]);
 		webCommandSearch.setEnabled(false);
 		webCommandSearch.addListener(SWT.Selection, new Listener() {
 			public void handleEvent(Event e) {
 				if (webBrowser == null) return;
 				webBrowser.GoSearch();
 			}
 		});

 		// Add a text area for Users to enter a url
 		Composite addressBar = new Composite(displayArea, SWT.NONE);
 		gridData = new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_FILL);
 		gridData.horizontalSpan = 3;
 		addressBar.setLayoutData(gridData);
 		GridLayout gridLayout = new GridLayout();
 		gridLayout.numColumns = 3;
 		addressBar.setLayout(gridLayout);

 		Label addressLabel = new Label(addressBar, SWT.NONE);
 		gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL);
 		addressLabel.setLayoutData(gridData);
 		addressLabel.setText(OlePlugin.getResourceString("browser.Address.label"));
 		addressLabel.setFont(OlePlugin.browserFont);

 		webUrl = new Text(addressBar, SWT.SINGLE | SWT.BORDER);
 		webUrl.setFont(OlePlugin.browserFont);
 		gridData = new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_FILL);
 		webUrl.setLayoutData(gridData);
 		webUrl.addFocusListener(new FocusAdapter() {
 			public void focusGained(FocusEvent e) {
 				webNavigateButton.getShell().setDefaultButton(webNavigateButton);
 			}
 		});

 		// Add a button to navigate to the web site specified in the Text area defined above
 		webNavigateButton = new Button(addressBar, SWT.PUSH);
 		gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL);
 		webNavigateButton.setLayoutData(gridData);
 		webNavigateButton.setText(OlePlugin.getResourceString("browser.Go.text"));
 		webNavigateButton.setFont(OlePlugin.browserFont);
 		webNavigateButton.addListener(SWT.Selection, new Listener() {
 			public void handleEvent(Event event) {
 				if (webBrowser == null) return;
 				webBrowser.Navigate(webUrl.getText());
 			}
 		});
 	}

 	/**
 	 * Creates the Web browser OleFrame.
 	 */
 	private void createBrowserFrame() {
 		// Every control must have an associated OleFrame:
 		webFrame = new OleFrame(displayArea, SWT.NONE);
 		GridData gridData = new GridData(GridData.FILL_HORIZONTAL | GridData.FILL_VERTICAL);
 		gridData.horizontalSpan = 3;
 		webFrame.setLayoutData(gridData);
 	}

 	/**
 	 * Creates the Web browser status area.
 	 */
 	private void createStatusArea() {
 		// Add a progress bar to display downloading progress information
 		webProgress = new ProgressBar(displayArea, SWT.BORDER);
 		GridData gridData = new GridData();
 		gridData.horizontalAlignment = GridData.BEGINNING;
 		gridData.verticalAlignment = GridData.FILL;
 		webProgress.setLayoutData(gridData);

 		// Add a label for displaying status messages as they are received from the control
 		webStatus = new Label(displayArea, SWT.SINGLE | SWT.READ_ONLY | SWT.BORDER);
 		gridData = new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_FILL);
 		gridData.horizontalSpan = 2;
 		webStatus.setLayoutData(gridData);
 		webStatus.setFont(OlePlugin.browserFont);
 	}

 	/**
 	 * Creates Web browser control.
 	 */
 	private void createBrowserControl() {
 		try {
 			// Create an Automation object for access to extended capabilities
 			webControlSite = new OleControlSite(webFrame, SWT.NONE, "Shell.Explorer");
 			Variant download = new Variant(DLCTL_NO_SCRIPTS);
 			webControlSite.setSiteProperty(DISPID_AMBIENT_DLCONTROL, download);
 			OleAutomation oleAutomation = new OleAutomation(webControlSite);
 			webBrowser = new OleWebBrowser(oleAutomation);
 		} catch (SWTException ex) {
 			// Creation may have failed because control is not installed on machine
 			Label label = new Label(webFrame, SWT.BORDER);
 			OlePlugin.logError(OlePlugin.getResourceString("error.CouldNotCreateBrowserControl"), ex);
 			label.setText(OlePlugin.getResourceString("error.CouldNotCreateBrowserControl"));
 			return;
 		}

 		// Respond to ProgressChange events by updating the Progress bar
 		webControlSite.addEventListener(OleWebBrowser.ProgressChange, new OleListener() {
 			public void handleEvent(OleEvent event) {
 				Variant progress = event.arguments[0];
 				Variant maxProgress = event.arguments[1];
 				if (progress == null || maxProgress == null)
 					return;
 				webProgress.setMaximum(maxProgress.getInt());
 				webProgress.setSelection(progress.getInt());
 			}
 		});

 		// Respond to StatusTextChange events by updating the Status Text label
 		webControlSite.addEventListener(OleWebBrowser.StatusTextChange, new OleListener() {
 			public void handleEvent(OleEvent event) {
 				Variant statusText = event.arguments[0];
 				if (statusText == null)	return;
 				String text = statusText.getString();
 				if (text != null)
 					webStatus.setText(text);
 			}
 		});

 		// Listen for changes to the ready state and print out the current state
 		webControlSite.addPropertyListener(OleWebBrowser.DISPID_READYSTATE, new OleListener() {
 			public void handleEvent(OleEvent event) {
 				if (event.detail == OLE.PROPERTY_CHANGING) return;
 				int state = webBrowser.getReadyState();
 				switch (state) {
 					case OleWebBrowser.READYSTATE_UNINITIALIZED:
 						webStatus.setText(
 							OlePlugin.getResourceString("browser.State.Uninitialized.text"));
 						webCommandBackward.setEnabled(false);
 						webCommandForward.setEnabled(false);
 						webCommandHome.setEnabled(false);
 						webCommandRefresh.setEnabled(false);
 						webCommandStop.setEnabled(false);
 						webCommandSearch.setEnabled(false);
 						break;
 					case OleWebBrowser.READYSTATE_LOADING:
 						webStatus.setText(
 							OlePlugin.getResourceString("browser.State.Loading.text"));
 						webCommandHome.setEnabled(true);
 						webCommandRefresh.setEnabled(true);
 						webCommandStop.setEnabled(true);
 						webCommandSearch.setEnabled(true);
 						break;
 					case OleWebBrowser.READYSTATE_LOADED:
 						webStatus.setText(
 							OlePlugin.getResourceString("browser.State.Loaded.text"));
 						webCommandStop.setEnabled(true);
 						break;
 					case OleWebBrowser.READYSTATE_INTERACTIVE:
 						webStatus.setText(
 							OlePlugin.getResourceString("browser.State.Interactive.text"));
 						webCommandStop.setEnabled(true);
 						break;
 					case OleWebBrowser.READYSTATE_COMPLETE:
 						webStatus.setText(
 							OlePlugin.getResourceString("browser.State.Complete.text"));
 						webCommandStop.setEnabled(false);
 						break;
 				}
 			}
 		});

 		// Listen for changes to the active command states
 		webControlSite.addEventListener(OleWebBrowser.CommandStateChange, new OleListener() {
 			public void handleEvent(OleEvent event) {
 				if (event.type != OleWebBrowser.CommandStateChange) return;
 				final int commandID =
 					(event.arguments[0] != null) ? event.arguments[0].getInt() : 0;
 				final boolean commandEnabled =
 					(event.arguments[1] != null) ? event.arguments[1].getBoolean() : false;

 				switch (commandID) {
 					case OleWebBrowser.CSC_NAVIGATEBACK:
 					 	webCommandBackward.setEnabled(commandEnabled);
 					 	break;
 					case OleWebBrowser.CSC_NAVIGATEFORWARD:
 					 	webCommandForward.setEnabled(commandEnabled);
 						break;
 				}
 			}
 		});

 		// in place activate the ActiveX control
 		activated = (webControlSite.doVerb(OLE.OLEIVERB_INPLACEACTIVATE) == OLE.S_OK);
 		if (activated) webBrowser.GoHome();
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2003 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
	*******************************************************************************/
	package org.eclipse.swt.examples.ole.win32;


	import org.eclipse.swt.*;
	import org.eclipse.swt.events.*;
	import org.eclipse.swt.layout.*;
	import org.eclipse.swt.ole.win32.*;
	import org.eclipse.swt.widgets.*;
	import org.eclipse.ui.part.*;

	/**
	* Ole uses <code>org.eclipse.swt</code> to demonstrate Win32 OLE / ActiveX
	* integration.
	*
	* @see ViewPart
	*/
	public class OleBrowserView extends ViewPart {

	private Composite displayArea;

	private OleFrame webFrame;
	private OleWebBrowser webBrowser;
	private Text webUrl;
	private OleControlSite webControlSite;
	private ProgressBar webProgress;
	private Label webStatus;
	private Button webNavigateButton;

	private ToolItem webCommandBackward;
	private ToolItem webCommandForward;
	private ToolItem webCommandHome;
	private ToolItem webCommandStop;
	private ToolItem webCommandRefresh;
	private ToolItem webCommandSearch;

	private boolean activated = false;

	private static final int DISPID_AMBIENT_DLCONTROL = -5512;
	private static final int DLCTL_NO_SCRIPTS = 0x80;

	/**
	* Constructs the OLE browser view.
	*/
	public OleBrowserView() {
	OlePlugin.initResources();
	}

	/**
	* Creates the example.
	*
	* @see ViewPart#createPartControl
	*/
	public void createPartControl(Composite parent) {
	displayArea = new Composite(parent, SWT.NONE);

	GridLayout gridLayout = new GridLayout();
	gridLayout.numColumns = 3;
	displayArea.setLayout(gridLayout);

	createToolbar();
	createBrowserFrame();
	createStatusArea();
	createBrowserControl();
	}

	/**
	* Cleanup
	*/
	public void dispose() {
	if (activated) {
	webControlSite.deactivateInPlaceClient();
	activated = false;
	}
	if (webBrowser != null) webBrowser.dispose();
	webBrowser = null;
	super.dispose();
	}

	/**
	* Called when we must grab focus.
	*
	* @see org.eclipse.ui.part.ViewPart#setFocus
	*/
	public void setFocus() {
	webUrl.setFocus();
	}

	/**
	* Creates the Web browser toolbar.
	*/
	private void createToolbar() {
	// Add a toolbar
	ToolBar bar = new ToolBar(displayArea, SWT.NONE);
	GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
	gridData.horizontalSpan = 3;
	bar.setLayoutData(gridData);

	// Add a button to navigate backwards through previously visited web sites
	webCommandBackward = new ToolItem(bar, SWT.NONE);
	webCommandBackward.setToolTipText(OlePlugin.getResourceString("browser.Back.tooltip"));
	webCommandBackward.setText(OlePlugin.getResourceString("browser.Back.text"));
	webCommandBackward.setImage(OlePlugin.images[OlePlugin.biBack]);
	webCommandBackward.setEnabled(false);
	webCommandBackward.addListener(SWT.Selection, new Listener() {
	public void handleEvent(Event e) {
	if (webBrowser == null) return;
	webBrowser.GoBack();
	}
	});

	// Add a button to navigate forward through previously visited web sites
	webCommandForward = new ToolItem(bar, SWT.NONE);
	webCommandForward.setToolTipText(OlePlugin.getResourceString("browser.Forward.tooltip"));
	webCommandForward.setText(OlePlugin.getResourceString("browser.Forward.text"));
	webCommandForward.setImage(OlePlugin.images[OlePlugin.biForward]);
	webCommandForward.setEnabled(false);
	webCommandForward.addListener(SWT.Selection, new Listener() {
	public void handleEvent(Event e) {
	if (webBrowser == null) return;
	webBrowser.GoForward();
	}
	});

	// Add a separator
	new ToolItem(bar, SWT.SEPARATOR);

	// Add a button to navigate to the Home page
	webCommandHome = new ToolItem(bar, SWT.NONE);
	webCommandHome.setToolTipText(OlePlugin.getResourceString("browser.Home.tooltip"));
	webCommandHome.setText(OlePlugin.getResourceString("browser.Home.text"));
	webCommandHome.setImage(OlePlugin.images[OlePlugin.biHome]);
	webCommandHome.setEnabled(false);
	webCommandHome.addListener(SWT.Selection, new Listener() {
	public void handleEvent(Event e) {
	if (webBrowser == null) return;
	webBrowser.GoHome();
	}
	});

	// Add a button to abort web page loading
	webCommandStop = new ToolItem(bar, SWT.NONE);
	webCommandStop.setToolTipText(OlePlugin.getResourceString("browser.Stop.tooltip"));
	webCommandStop.setText(OlePlugin.getResourceString("browser.Stop.text"));
	webCommandStop.setImage(OlePlugin.images[OlePlugin.biStop]);
	webCommandStop.setEnabled(false);
	webCommandStop.addListener(SWT.Selection, new Listener() {
	public void handleEvent(Event e) {
	if (webBrowser == null) return;
	webBrowser.Stop();
	}
	});

	// Add a button to refresh the current web page
	webCommandRefresh = new ToolItem(bar, SWT.NONE);
	webCommandRefresh.setToolTipText(OlePlugin.getResourceString("browser.Refresh.tooltip"));
	webCommandRefresh.setText(OlePlugin.getResourceString("browser.Refresh.text"));
	webCommandRefresh.setImage(OlePlugin.images[OlePlugin.biRefresh]);
	webCommandRefresh.setEnabled(false);
	webCommandRefresh.addListener(SWT.Selection, new Listener() {
	public void handleEvent(Event e) {
	if (webBrowser == null) return;
	webBrowser.Refresh();
	}
	});

	// Add a separator
	new ToolItem(bar, SWT.SEPARATOR);

	// Add a button to search the web
	webCommandSearch = new ToolItem(bar, SWT.NONE);
	webCommandSearch.setToolTipText(OlePlugin.getResourceString("browser.Search.tooltip"));
	webCommandSearch.setText(OlePlugin.getResourceString("browser.Search.text"));
	webCommandSearch.setImage(OlePlugin.images[OlePlugin.biSearch]);
	webCommandSearch.setEnabled(false);
	webCommandSearch.addListener(SWT.Selection, new Listener() {
	public void handleEvent(Event e) {
	if (webBrowser == null) return;
	webBrowser.GoSearch();
	}
	});

	// Add a text area for Users to enter a url
	Composite addressBar = new Composite(displayArea, SWT.NONE);
	gridData = new GridData(GridData.FILL_HORIZONTAL \| GridData.VERTICAL_ALIGN_FILL);
	gridData.horizontalSpan = 3;
	addressBar.setLayoutData(gridData);
	GridLayout gridLayout = new GridLayout();
	gridLayout.numColumns = 3;
	addressBar.setLayout(gridLayout);

	Label addressLabel = new Label(addressBar, SWT.NONE);
	gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL \| GridData.VERTICAL_ALIGN_FILL);
	addressLabel.setLayoutData(gridData);
	addressLabel.setText(OlePlugin.getResourceString("browser.Address.label"));
	addressLabel.setFont(OlePlugin.browserFont);

	webUrl = new Text(addressBar, SWT.SINGLE \| SWT.BORDER);
	webUrl.setFont(OlePlugin.browserFont);
	gridData = new GridData(GridData.FILL_HORIZONTAL \| GridData.VERTICAL_ALIGN_FILL);
	webUrl.setLayoutData(gridData);
	webUrl.addFocusListener(new FocusAdapter() {
	public void focusGained(FocusEvent e) {
	webNavigateButton.getShell().setDefaultButton(webNavigateButton);
	}
	});

	// Add a button to navigate to the web site specified in the Text area defined above
	webNavigateButton = new Button(addressBar, SWT.PUSH);
	gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL \| GridData.VERTICAL_ALIGN_FILL);
	webNavigateButton.setLayoutData(gridData);
	webNavigateButton.setText(OlePlugin.getResourceString("browser.Go.text"));
	webNavigateButton.setFont(OlePlugin.browserFont);
	webNavigateButton.addListener(SWT.Selection, new Listener() {
	public void handleEvent(Event event) {
	if (webBrowser == null) return;
	webBrowser.Navigate(webUrl.getText());
	}
	});
	}

	/**
	* Creates the Web browser OleFrame.
	*/
	private void createBrowserFrame() {
	// Every control must have an associated OleFrame:
	webFrame = new OleFrame(displayArea, SWT.NONE);
	GridData gridData = new GridData(GridData.FILL_HORIZONTAL \| GridData.FILL_VERTICAL);
	gridData.horizontalSpan = 3;
	webFrame.setLayoutData(gridData);
	}

	/**
	* Creates the Web browser status area.
	*/
	private void createStatusArea() {
	// Add a progress bar to display downloading progress information
	webProgress = new ProgressBar(displayArea, SWT.BORDER);
	GridData gridData = new GridData();
	gridData.horizontalAlignment = GridData.BEGINNING;
	gridData.verticalAlignment = GridData.FILL;
	webProgress.setLayoutData(gridData);

	// Add a label for displaying status messages as they are received from the control
	webStatus = new Label(displayArea, SWT.SINGLE \| SWT.READ_ONLY \| SWT.BORDER);
	gridData = new GridData(GridData.FILL_HORIZONTAL \| GridData.VERTICAL_ALIGN_FILL);
	gridData.horizontalSpan = 2;
	webStatus.setLayoutData(gridData);
	webStatus.setFont(OlePlugin.browserFont);
	}

	/**
	* Creates Web browser control.
	*/
	private void createBrowserControl() {
	try {
	// Create an Automation object for access to extended capabilities
	webControlSite = new OleControlSite(webFrame, SWT.NONE, "Shell.Explorer");
	Variant download = new Variant(DLCTL_NO_SCRIPTS);
	webControlSite.setSiteProperty(DISPID_AMBIENT_DLCONTROL, download);
	OleAutomation oleAutomation = new OleAutomation(webControlSite);
	webBrowser = new OleWebBrowser(oleAutomation);
	} catch (SWTException ex) {
	// Creation may have failed because control is not installed on machine
	Label label = new Label(webFrame, SWT.BORDER);
	OlePlugin.logError(OlePlugin.getResourceString("error.CouldNotCreateBrowserControl"), ex);
	label.setText(OlePlugin.getResourceString("error.CouldNotCreateBrowserControl"));
	return;
	}

	// Respond to ProgressChange events by updating the Progress bar
	webControlSite.addEventListener(OleWebBrowser.ProgressChange, new OleListener() {
	public void handleEvent(OleEvent event) {
	Variant progress = event.arguments[0];
	Variant maxProgress = event.arguments[1];
	if (progress == null \|\| maxProgress == null)
	return;
	webProgress.setMaximum(maxProgress.getInt());
	webProgress.setSelection(progress.getInt());
	}
	});

	// Respond to StatusTextChange events by updating the Status Text label
	webControlSite.addEventListener(OleWebBrowser.StatusTextChange, new OleListener() {
	public void handleEvent(OleEvent event) {
	Variant statusText = event.arguments[0];
	if (statusText == null) return;
	String text = statusText.getString();
	if (text != null)
	webStatus.setText(text);
	}
	});

	// Listen for changes to the ready state and print out the current state
	webControlSite.addPropertyListener(OleWebBrowser.DISPID_READYSTATE, new OleListener() {
	public void handleEvent(OleEvent event) {
	if (event.detail == OLE.PROPERTY_CHANGING) return;
	int state = webBrowser.getReadyState();
	switch (state) {
	case OleWebBrowser.READYSTATE_UNINITIALIZED:
	webStatus.setText(
	OlePlugin.getResourceString("browser.State.Uninitialized.text"));
	webCommandBackward.setEnabled(false);
	webCommandForward.setEnabled(false);
	webCommandHome.setEnabled(false);
	webCommandRefresh.setEnabled(false);
	webCommandStop.setEnabled(false);
	webCommandSearch.setEnabled(false);
	break;
	case OleWebBrowser.READYSTATE_LOADING:
	webStatus.setText(
	OlePlugin.getResourceString("browser.State.Loading.text"));
	webCommandHome.setEnabled(true);
	webCommandRefresh.setEnabled(true);
	webCommandStop.setEnabled(true);
	webCommandSearch.setEnabled(true);
	break;
	case OleWebBrowser.READYSTATE_LOADED:
	webStatus.setText(
	OlePlugin.getResourceString("browser.State.Loaded.text"));
	webCommandStop.setEnabled(true);
	break;
	case OleWebBrowser.READYSTATE_INTERACTIVE:
	webStatus.setText(
	OlePlugin.getResourceString("browser.State.Interactive.text"));
	webCommandStop.setEnabled(true);
	break;
	case OleWebBrowser.READYSTATE_COMPLETE:
	webStatus.setText(
	OlePlugin.getResourceString("browser.State.Complete.text"));
	webCommandStop.setEnabled(false);
	break;
	}
	}
	});

	// Listen for changes to the active command states
	webControlSite.addEventListener(OleWebBrowser.CommandStateChange, new OleListener() {
	public void handleEvent(OleEvent event) {
	if (event.type != OleWebBrowser.CommandStateChange) return;
	final int commandID =
	(event.arguments[0] != null) ? event.arguments[0].getInt() : 0;
	final boolean commandEnabled =
	(event.arguments[1] != null) ? event.arguments[1].getBoolean() : false;

	switch (commandID) {
	case OleWebBrowser.CSC_NAVIGATEBACK:
	webCommandBackward.setEnabled(commandEnabled);
	break;
	case OleWebBrowser.CSC_NAVIGATEFORWARD:
	webCommandForward.setEnabled(commandEnabled);
	break;
	}
	}
	});

	// in place activate the ActiveX control
	activated = (webControlSite.doVerb(OLE.OLEIVERB_INPLACEACTIVATE) == OLE.S_OK);
	if (activated) webBrowser.GoHome();
	}
	}