diff dwt/browser/Browser.d @ 125:5583f8eeee6c

Synced mozilla with dwt-linux
author Jacob Carlborg <doob@me.com>
date Fri, 16 Jan 2009 12:49:08 +0100
parents d8635bb48c7c
children
line wrap: on
line diff
--- a/dwt/browser/Browser.d	Fri Jan 16 12:19:08 2009 +0100
+++ b/dwt/browser/Browser.d	Fri Jan 16 12:49:08 2009 +0100
@@ -1,5 +1,5 @@
-/*******************************************************************************
- * Copyright (c) 2003, 2008 IBM Corporation and others.
+/*******************************************************************************
+ * Copyright (c) 2003, 2007 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
@@ -7,13 +7,15 @@
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
- *     
  * Port to the D programming language:
- *     Jacob Carlborg <doob@me.com>
+ *      John Reimer <terminal.node@gmail.com>
  *******************************************************************************/
 module dwt.browser.Browser;
 
+import dwt.dwthelper.utils;
+
 import tango.core.Thread;
+import tango.io.Stdout;
 
 import dwt.DWT;
 import dwt.DWTError;
@@ -22,17 +24,15 @@
 import dwt.widgets.Display;
 import dwt.widgets.Widget;
 
-import dwt.browser.LocationListener;
+import dwt.browser.Mozilla;
 import dwt.browser.WebBrowser;
 import dwt.browser.CloseWindowListener;
+import dwt.browser.LocationListener;
 import dwt.browser.OpenWindowListener;
 import dwt.browser.ProgressListener;
 import dwt.browser.StatusTextListener;
 import dwt.browser.TitleListener;
 import dwt.browser.VisibilityWindowListener;
-
-import dwt.dwthelper.utils;
-
 /**
  * Instances of this class implement the browser user interface
  * metaphor.  It allows the user to visualize and navigate through
@@ -51,10 +51,6 @@
  * IMPORTANT: This class is <em>not</em> intended to be subclassed.
  * </p>
  * 
- * @see <a href="http://www.eclipse.org/swt/snippets/#browser">Browser snippets</a>
- * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Examples: ControlExample, BrowserExample</a>
- * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
- *
  * @since 3.0
  */
 
@@ -65,779 +61,721 @@
     static final String PACKAGE_PREFIX = "dwt.browser."; //$NON-NLS-1$
     static final String NO_INPUT_METHOD = "dwt.internal.gtk.noInputMethod"; //$NON-NLS-1$
 
-    /**
-     * Constructs a new instance of this class given its parent
-     * and a style value describing its behavior and appearance.
-     * <p>
-     * The style value is either one of the style constants defined in
-     * class <code>DWT</code> which is applicable to instances of this
-     * class, or must be built by <em>bitwise OR</em>'ing together 
-     * (that is, using the <code>int</code> "|" operator) two or more
-     * of those <code>DWT</code> style constants. The class description
-     * lists the style constants that are applicable to the class.
-     * Style bits are also inherited from superclasses.
-     * </p>
-     *
-     * @param parent a widget which will be the parent of the new instance (cannot be null)
-     * @param style the style of widget to construct
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
-     * </ul>
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
-     * </ul>
-     * @exception DWTError <ul>
-     *    <li>ERROR_NO_HANDLES if a handle could not be obtained for browser creation</li>
-     * </ul>
-     * 
-     * @see Widget#getStyle
-     * 
-     * @since 3.0
-     */
-    public this (Composite parent, int style) {
-        super(checkParent(parent), checkStyle(style));
-        userStyle = style;
+/**
+ * Constructs a new instance of this class given its parent
+ * and a style value describing its behavior and appearance.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>DWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together 
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>DWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a widget which will be the parent of the new instance (cannot be null)
+ * @param style the style of widget to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ * @exception DWTError <ul>
+ *    <li>ERROR_NO_HANDLES if a handle could not be obtained for browser creation</li>
+ * </ul>
+ * 
+ * @see Widget#getStyle
+ * 
+ * @since 3.0
+ */
+public this (Composite parent, int style) {
+    super (checkParent (parent), checkStyle (style));
+    userStyle = style;
 
-        String platform = DWT.getPlatform();
-        Display display = parent.getDisplay();
-        if ("gtk".opEquals(platform))
-            display.setData(NO_INPUT_METHOD, null); //$NON-NLS-1$
-        String className = null;
-        if ((style & DWT.MOZILLA) !is 0) {
-            className = "dwt.browser.Mozilla"; //$NON-NLS-1$
-        }
-        else {
-            if ("win32".opEquals(platform) || "wpf".opEquals(platform)) { //$NON-NLS-1$ $NON-NLS-2$
-                className = "dwt.browser.IE"; //$NON-NLS-1$
-            }
-            else if ("motif".opEquals(platform)) { //$NON-NLS-1$
-                className = "dwt.browser.Mozilla"; //$NON-NLS-1$
-            }
-            else if ("gtk".opEquals(platform)) { //$NON-NLS-1$
-                className = "dwt.browser.Mozilla"; //$NON-NLS-1$
-            }
-            else if ("carbon".opEquals(platform) || "cocoa".opEquals(platform)) { //$NON-NLS-1$
-                className = "dwt.browser.Safari"; //$NON-NLS-1$
-            }
-            else if ("photon".opEquals(platform)) { //$NON-NLS-1$
-                className = "dwt.browser.Voyager"; //$NON-NLS-1$
-            }
-            else {
-                dispose();
-                DWT.error(DWT.ERROR_NO_HANDLES);
+    String platform = DWT.getPlatform ();
+    Display display = parent.getDisplay ();
+    if ("gtk" == platform) display.setData (NO_INPUT_METHOD, null); //$NON-NLS-1$
+    /*
+    String className = null;
+    if ((style & DWT.MOZILLA) !is 0) {
+        className = "dwt.browser.Mozilla"; //$NON-NLS-1$
+    } else {
+        dispose();
+        DWT.error(DWT.ERROR_NO_HANDLES);
+    }
+    */
+    webBrowser = new Mozilla;
+    if (webBrowser is null) {
+        dispose ();
+        DWT.error (DWT.ERROR_NO_HANDLES);
+    }
+
+    webBrowser.setBrowser (this);
+    webBrowser.create (parent, style);
+}
+
+static Composite checkParent (Composite parent) {
+    String platform = DWT.getPlatform ();
+    if (!("gtk" == platform)) return parent; //$NON-NLS-1$
+
+    /*
+    * Note.  Mozilla provides all IM support needed for text input in web pages.
+    * If DWT creates another input method context for the widget it will cause
+    * indeterminate results to happen (hangs and crashes). The fix is to prevent 
+    * DWT from creating an input method context for the  Browser widget.
+    */
+    if (parent !is null && !parent.isDisposed ()) {
+        Display display = parent.getDisplay ();
+        if (display !is null) {
+            if (display.getThread () is Thread.getThis ()) {
+                display.setData (NO_INPUT_METHOD, stringcast("true")); //$NON-NLS-1$
             }
         }
-
-        try {
-            Class clazz = Class.forName(className);
-            webBrowser = cast(WebBrowser) clazz.newInstance();
-        }
-        catch (ClassNotFoundException e) {
-        } catch (IllegalAccessException e) {
-        } catch (InstantiationException e) {
-        }
-        if (webBrowser is null) {
-            dispose();
-            DWT.error(DWT.ERROR_NO_HANDLES);
-        }
-
-        webBrowser.setBrowser(this);
-        webBrowser.create(parent, style);
     }
-
-    static Composite checkParent (Composite parent) {
-        String platform = DWT.getPlatform();
-        if (!"gtk".opEquals(platform))
-            return parent; //$NON-NLS-1$
+    return parent;
+}
 
-        /*
-         * Note.  Mozilla provides all IM support needed for text input in web pages.
-         * If DWT creates another input method context for the widget it will cause
-         * indeterminate results to happen (hangs and crashes). The fix is to prevent 
-         * DWT from creating an input method context for the  Browser widget.
-         */
-        if (parent !is null && !parent.isDisposed()) {
-            Display display = parent.getDisplay();
-            if (display !is null) {
-                if (display.getThread() is Thread.currentThread()) {
-                    display.setData(NO_INPUT_METHOD, "true"); //$NON-NLS-1$
-                }
-            }
-        }
-        return parent;
-    }
-
-    static int checkStyle (int style) {
-        String platform = DWT.getPlatform();
-        if ((style & DWT.MOZILLA) !is 0) {
-            if ("carbon".opEquals(platform))
-                return style | DWT.EMBEDDED; //$NON-NLS-1$
-            if ("motif".opEquals(platform))
-                return style | DWT.EMBEDDED; //$NON-NLS-1$
-            return style;
-        }
-
-        if ("win32".opEquals(platform)) { //$NON-NLS-1$
-            /*
-             * For IE on win32 the border is supplied by the embedded browser, so remove
-             * the style so that the parent Composite will not draw a second border.
-             */
-            return style & ~DWT.BORDER;
-        }
-        else if ("motif".opEquals(platform)) { //$NON-NLS-1$
-            return style | DWT.EMBEDDED;
-        }
+static int checkStyle(int style) {
+    String platform = DWT.getPlatform ();
+    if ((style & DWT.MOZILLA) !is 0) {
+        if ("carbon" == platform) return style | DWT.EMBEDDED; //$NON-NLS-1$
+        if ("motif" == platform) return style | DWT.EMBEDDED; //$NON-NLS-1$
         return style;
     }
 
-    /**
-     * Clears all session cookies from all current Browser instances.
-     * 
-     * @since 3.2
-     */
-    public static void clearSessions () {
-        WebBrowser.clearSessions();
+    if ("win32" == platform) { //$NON-NLS-1$
+        /*
+        * For IE on win32 the border is supplied by the embedded browser, so remove
+        * the style so that the parent Composite will not draw a second border.
+        */
+        return style & ~DWT.BORDER;
+    } else if ("motif" == platform) { //$NON-NLS-1$
+        return style | DWT.EMBEDDED;
     }
+    return style;
+}
+
+/**
+ * Clears all session cookies from all current Browser instances.
+ * 
+ * @since 3.2
+ */
+public static void clearSessions () {
+    WebBrowser.clearSessions ();
+}
 
-    /**  
-     * Adds the listener to the collection of listeners who will be
-     * notified when the window hosting the receiver should be closed.
-     * <p>
-     * This notification occurs when a javascript command such as
-     * <code>window.close</code> gets executed by a <code>Browser</code>.
-     * </p>
-     *
-     * @param listener the listener which should be notified
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
-     * </ul>
-     * 
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     *
-     * @since 3.0
-     */
-    public void addCloseWindowListener (CloseWindowListener listener) {
-        checkWidget();
-        if (listener is null)
-            DWT.error(DWT.ERROR_NULL_ARGUMENT);
-        webBrowser.addCloseWindowListener(listener);
-    }
+/**  
+ * Adds the listener to the collection of listeners who will be
+ * notified when the window hosting the receiver should be closed.
+ * <p>
+ * This notification occurs when a javascript command such as
+ * <code>window.close</code> gets executed by a <code>Browser</code>.
+ * </p>
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * 
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void addCloseWindowListener (CloseWindowListener listener) {
+    checkWidget();
+    if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
+    webBrowser.addCloseWindowListener (listener);
+}
 
-    /**  
-     * Adds the listener to the collection of listeners who will be
-     * notified when the current location has changed or is about to change.
-     * <p>
-     * This notification typically occurs when the application navigates
-     * to a new location with {@link #setUrl(String)} or when the user
-     * activates a hyperlink.
-     * </p>
-     *
-     * @param listener the listener which should be notified
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
-     * </ul>
-     * 
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     *
-     * @since 3.0
-     */
-    public void addLocationListener (LocationListener listener) {
-        checkWidget();
-        if (listener is null)
-            DWT.error(DWT.ERROR_NULL_ARGUMENT);
-        webBrowser.addLocationListener(listener);
-    }
+/**  
+ * Adds the listener to the collection of listeners who will be
+ * notified when the current location has changed or is about to change.
+ * <p>
+ * This notification typically occurs when the application navigates
+ * to a new location with {@link #setUrl(String)} or when the user
+ * activates a hyperlink.
+ * </p>
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * 
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void addLocationListener (LocationListener listener) {
+    checkWidget();
+    if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
+    webBrowser.addLocationListener (listener);
+}
 
-    /**  
-     * Adds the listener to the collection of listeners who will be
-     * notified when a new window needs to be created.
-     * <p>
-     * This notification occurs when a javascript command such as
-     * <code>window.open</code> gets executed by a <code>Browser</code>.
-     * </p>
-     *
-     * @param listener the listener which should be notified
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
-     * </ul>
-     * 
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     *
-     * @since 3.0
-     */
-    public void addOpenWindowListener (OpenWindowListener listener) {
-        checkWidget();
-        if (listener is null)
-            DWT.error(DWT.ERROR_NULL_ARGUMENT);
-        webBrowser.addOpenWindowListener(listener);
-    }
+/**  
+ * Adds the listener to the collection of listeners who will be
+ * notified when a new window needs to be created.
+ * <p>
+ * This notification occurs when a javascript command such as
+ * <code>window.open</code> gets executed by a <code>Browser</code>.
+ * </p>
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * 
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void addOpenWindowListener (OpenWindowListener listener) {
+    checkWidget();
+    if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
+    webBrowser.addOpenWindowListener (listener);
+}
 
-    /**  
-     * Adds the listener to the collection of listeners who will be
-     * notified when a progress is made during the loading of the current 
-     * URL or when the loading of the current URL has been completed.
-     *
-     * @param listener the listener which should be notified
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
-     * </ul>
-     * 
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     *
-     * @since 3.0
-     */
-    public void addProgressListener (ProgressListener listener) {
-        checkWidget();
-        if (listener is null)
-            DWT.error(DWT.ERROR_NULL_ARGUMENT);
-        webBrowser.addProgressListener(listener);
-    }
+/**  
+ * Adds the listener to the collection of listeners who will be
+ * notified when a progress is made during the loading of the current 
+ * URL or when the loading of the current URL has been completed.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * 
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void addProgressListener (ProgressListener listener) {
+    checkWidget();
+    if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
+    webBrowser.addProgressListener (listener);
+}
 
-    /**  
-     * Adds the listener to the collection of listeners who will be
-     * notified when the status text is changed.
-     * <p>
-     * The status text is typically displayed in the status bar of
-     * a browser application.
-     * </p>
-     *
-     * @param listener the listener which should be notified
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
-     * </ul>
-     * 
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     *
-     * @since 3.0
-     */
-    public void addStatusTextListener (StatusTextListener listener) {
-        checkWidget();
-        if (listener is null)
-            DWT.error(DWT.ERROR_NULL_ARGUMENT);
-        webBrowser.addStatusTextListener(listener);
-    }
+/**  
+ * Adds the listener to the collection of listeners who will be
+ * notified when the status text is changed.
+ * <p>
+ * The status text is typically displayed in the status bar of
+ * a browser application.
+ * </p>
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * 
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void addStatusTextListener (StatusTextListener listener) {
+    checkWidget();
+    if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
+    webBrowser.addStatusTextListener (listener);
+}
 
-    /**  
-     * Adds the listener to the collection of listeners who will be
-     * notified when the title of the current document is available
-     * or has changed.
-     *
-     * @param listener the listener which should be notified
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
-     * </ul>
-     * 
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     *
-     * @since 3.0
-     */
-    public void addTitleListener (TitleListener listener) {
-        checkWidget();
-        if (listener is null)
-            DWT.error(DWT.ERROR_NULL_ARGUMENT);
-        webBrowser.addTitleListener(listener);
-    }
+/**  
+ * Adds the listener to the collection of listeners who will be
+ * notified when the title of the current document is available
+ * or has changed.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * 
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void addTitleListener (TitleListener listener) {
+    checkWidget();
+    if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
+    webBrowser.addTitleListener (listener);
+}
+
+/**  
+ * Adds the listener to the collection of listeners who will be
+ * notified when a window hosting the receiver needs to be displayed
+ * or hidden.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * 
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void addVisibilityWindowListener (VisibilityWindowListener listener) {
+    checkWidget();
+    if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
+    webBrowser.addVisibilityWindowListener (listener);
+}
 
-    /**  
-     * Adds the listener to the collection of listeners who will be
-     * notified when a window hosting the receiver needs to be displayed
-     * or hidden.
-     *
-     * @param listener the listener which should be notified
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
-     * </ul>
-     * 
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     *
-     * @since 3.0
-     */
-    public void addVisibilityWindowListener (VisibilityWindowListener listener) {
-        checkWidget();
-        if (listener is null)
-            DWT.error(DWT.ERROR_NULL_ARGUMENT);
-        webBrowser.addVisibilityWindowListener(listener);
+/**
+ * Navigate to the previous session history item.
+ *
+ * @return <code>true</code> if the operation was successful and <code>false</code> otherwise
+ *
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @see #forward
+ * 
+ * @since 3.0
+ */
+public bool back () {
+    checkWidget();
+    return webBrowser.back ();
+}
+
+protected void checkSubclass () {
+    String name = this.classinfo.name;
+    name = name.substring(0, name.lastIndexOf('.'));
+    int index = name.lastIndexOf('.');
+    if (!name.substring (0, index + 1).equals (PACKAGE_PREFIX)) {
+        Stdout ("name: ")(name.substring(0, index + 1))(" == " )(PACKAGE_PREFIX).newline;
+        DWT.error (DWT.ERROR_INVALID_SUBCLASS);
     }
-
-    /**
-     * Navigate to the previous session history item.
-     *
-     * @return <code>true</code> if the operation was successful and <code>false</code> otherwise
-     *
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     *
-     * @see #forward
-     * 
-     * @since 3.0
-     */
-    public bool back () {
-        checkWidget();
-        return webBrowser.back();
-    }
+}
 
-    protected void checkSubclass () {
-        String name = getClass().getName();
-        int index = name.lastIndexOf('.');
-        if (!name.substring(0, index + 1).opEquals(PACKAGE_PREFIX)) {
-            DWT.error(DWT.ERROR_INVALID_SUBCLASS);
-        }
-    }
+/**
+ * Execute the specified script.
+ *
+ * <p>
+ * Execute a script containing javascript commands in the context of the current document. 
+ * 
+ * @param script the script with javascript commands
+ *  
+ * @return <code>true</code> if the operation was successful and <code>false</code> otherwise
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the script is null</li>
+ * </ul>
+ * 
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @since 3.1
+ */
+public bool execute (String script) {
+    checkWidget();
+    if (script is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
+    return webBrowser.execute (script);
+}
 
-    /**
-     * Execute the specified script.
-     *
-     * <p>
-     * Execute a script containing javascript commands in the context of the current document. 
-     * 
-     * @param script the script with javascript commands
-     *  
-     * @return <code>true</code> if the operation was successful and <code>false</code> otherwise
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the script is null</li>
-     * </ul>
-     * 
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     *
-     * @since 3.1
-     */
-    public bool execute (String script) {
-        checkWidget();
-        if (script is null)
-            DWT.error(DWT.ERROR_NULL_ARGUMENT);
-        return webBrowser.execute(script);
-    }
+/**
+ * Navigate to the next session history item.
+ *
+ * @return <code>true</code> if the operation was successful and <code>false</code> otherwise
+ *
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ * 
+ * @see #back
+ * 
+ * @since 3.0
+ */
+public bool forward () {
+    checkWidget();
+    return webBrowser.forward ();
+}
 
-    /**
-     * Navigate to the next session history item.
-     *
-     * @return <code>true</code> if the operation was successful and <code>false</code> otherwise
-     *
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     * 
-     * @see #back
-     * 
-     * @since 3.0
-     */
-    public bool forward () {
-        checkWidget();
-        return webBrowser.forward();
+public int getStyle () {
+    /*
+    * If DWT.BORDER was specified at creation time then getStyle() should answer
+    * it even though it is removed for IE on win32 in checkStyle().
+    */
+    return super.getStyle () | (userStyle & DWT.BORDER);
+}
+
+/**
+ * Returns a string with HTML that represents the content of the current page.
+ *
+ * @return HTML representing the current page or an empty <code>String</code>
+ * if this is empty
+ *
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @since 3.4
+ */
+public String getText () {
+    checkWidget();
+    return webBrowser.getText ();
 }
 
 /**
- * Returns the type of native browser being used by this instance.
- * Examples: "mozilla", "ie", "safari", "voyager"
+ * Returns the current URL.
+ *
+ * @return the current URL or an empty <code>String</code> if there is no current URL
  *
- * @return the type of the native browser
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @see #setUrl
  * 
- * @since 3.5
+ * @since 3.0
  */
-public String getBrowserType () {
+public String getUrl () {
     checkWidget();
-    return webBrowser.getBrowserType ();
-    }
+    return webBrowser.getUrl ();
+}
 
-    public int getStyle () {
-        /*
-         * If DWT.BORDER was specified at creation time then getStyle() should answer
-         * it even though it is removed for IE on win32 in checkStyle().
-         */
-        return super.getStyle() | (userStyle & DWT.BORDER);
-    }
+/**
+ * Returns the JavaXPCOM <code>nsIWebBrowser</code> for the receiver, or <code>null</code>
+ * if it is not available.  In order for an <code>nsIWebBrowser</code> to be returned all
+ * of the following must be true: <ul>
+ *    <li>the receiver's style must be <code>DWT.MOZILLA</code></li>
+ *    <li>the classes from JavaXPCOM &gt;= 1.8.1.2 must be resolvable at runtime</li>
+ *    <li>the version of the underlying XULRunner must be &gt;= 1.8.1.2</li>
+ * </ul> 
+ *
+ * @return the receiver's JavaXPCOM <code>nsIWebBrowser</code> or <code>null</code>
+ * 
+ * @since 3.3
+ */
+public Object getWebBrowser () {
+    checkWidget();
+    return webBrowser.getWebBrowser ();
+}
 
-    /**
-     * Returns a String with HTML that represents the content of the current page.
-     *
-     * @return HTML representing the current page or an empty <code>String</code>
-     * if this is empty
-     *
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     *
-     * @since 3.4
-     */
-    public String getText () {
-        checkWidget();
-        return webBrowser.getText();
-    }
+/**
+ * Returns <code>true</code> if the receiver can navigate to the 
+ * previous session history item, and <code>false</code> otherwise.
+ *
+ * @return the receiver's back command enabled state
+ *
+ * @exception DWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * 
+ * @see #back
+ */
+public bool isBackEnabled () {
+    checkWidget();
+    return webBrowser.isBackEnabled ();
+}
 
-    /**
-     * Returns the current URL.
-     *
-     * @return the current URL or an empty <code>String</code> if there is no current URL
-     *
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     *
-     * @see #setUrl
-     * 
-     * @since 3.0
-     */
-    public String getUrl () {
-        checkWidget();
-        return webBrowser.getUrl();
-    }
+public bool isFocusControl () {
+    checkWidget();
+    if (webBrowser.isFocusControl ()) return true;
+    return super.isFocusControl ();
+}
 
-    /**
-     * Returns the JavaXPCOM <code>nsIWebBrowser</code> for the receiver, or <code>null</code>
-     * if it is not available.  In order for an <code>nsIWebBrowser</code> to be returned all
-     * of the following must be true: <ul>
-     *    <li>the receiver's style must be <code>DWT.MOZILLA</code></li>
-     *    <li>the classes from JavaXPCOM &gt;= 1.8.1.2 must be resolvable at runtime</li>
-     *    <li>the version of the underlying XULRunner must be &gt;= 1.8.1.2</li>
-     * </ul> 
-     *
-     * @return the receiver's JavaXPCOM <code>nsIWebBrowser</code> or <code>null</code>
-     * 
-     * @since 3.3
-     */
-    public Object getWebBrowser () {
-        checkWidget();
-        return webBrowser.getWebBrowser();
-    }
+/**
+ * Returns <code>true</code> if the receiver can navigate to the 
+ * next session history item, and <code>false</code> otherwise.
+ *
+ * @return the receiver's forward command enabled state
+ *
+ * @exception DWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * 
+ * @see #forward
+ */
+public bool isForwardEnabled () {
+    checkWidget();
+    return webBrowser.isForwardEnabled ();
+}
 
-    /**
-     * Returns <code>true</code> if the receiver can navigate to the 
-     * previous session history item, and <code>false</code> otherwise.
-     *
-     * @return the receiver's back command enabled state
-     *
-     * @exception DWTException <ul>
-     *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
-     *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
-     * </ul>
-     * 
-     * @see #back
-     */
-    public bool isBackEnabled () {
-        checkWidget();
-        return webBrowser.isBackEnabled();
-    }
+/**
+ * Refresh the current page.
+ *
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void refresh () {
+    checkWidget();
+    webBrowser.refresh ();
+}
 
-    public bool isFocusControl () {
-        checkWidget();
-        if (webBrowser.isFocusControl())
-            return true;
-        return super.isFocusControl();
-    }
-
-    /**
-     * Returns <code>true</code> if the receiver can navigate to the 
-     * next session history item, and <code>false</code> otherwise.
-     *
-     * @return the receiver's forward command enabled state
-     *
-     * @exception DWTException <ul>
-     *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
-     *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
-     * </ul>
-     * 
-     * @see #forward
-     */
-    public bool isForwardEnabled () {
-        checkWidget();
-        return webBrowser.isForwardEnabled();
-    }
+/**  
+ * Removes the listener from the collection of listeners who will
+ * be notified when the window hosting the receiver should be closed.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * 
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ * 
+ * @since 3.0
+ */
+public void removeCloseWindowListener (CloseWindowListener listener) {
+    checkWidget();
+    if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
+    webBrowser.removeCloseWindowListener (listener);
+}
 
-    /**
-     * Refresh the current page.
-     *
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     *
-     * @since 3.0
-     */
-    public void refresh () {
-        checkWidget();
-        webBrowser.refresh();
-    }
+/**  
+ * Removes the listener from the collection of listeners who will
+ * be notified when the current location is changed or about to be changed.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * 
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ * 
+ * @since 3.0
+ */
+public void removeLocationListener (LocationListener listener) {
+    checkWidget();
+    if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
+    webBrowser.removeLocationListener (listener);
+}
 
-    /**  
-     * Removes the listener from the collection of listeners who will
-     * be notified when the window hosting the receiver should be closed.
-     *
-     * @param listener the listener which should no longer be notified
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
-     * </ul>
-     * 
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     * 
-     * @since 3.0
-     */
-    public void removeCloseWindowListener (CloseWindowListener listener) {
-        checkWidget();
-        if (listener is null)
-            DWT.error(DWT.ERROR_NULL_ARGUMENT);
-        webBrowser.removeCloseWindowListener(listener);
-    }
-
-    /**  
-     * Removes the listener from the collection of listeners who will
-     * be notified when the current location is changed or about to be changed.
-     *
-     * @param listener the listener which should no longer be notified
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
-     * </ul>
-     * 
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     * 
-     * @since 3.0
-     */
-    public void removeLocationListener (LocationListener listener) {
-        checkWidget();
-        if (listener is null)
-            DWT.error(DWT.ERROR_NULL_ARGUMENT);
-        webBrowser.removeLocationListener(listener);
-    }
+/**  
+ * Removes the listener from the collection of listeners who will
+ * be notified when a new window needs to be created.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * 
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ * 
+ * @since 3.0
+ */
+public void removeOpenWindowListener (OpenWindowListener listener) {
+    checkWidget();
+    if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
+    webBrowser.removeOpenWindowListener (listener);
+}
 
-    /**  
-     * Removes the listener from the collection of listeners who will
-     * be notified when a new window needs to be created.
-     *
-     * @param listener the listener which should no longer be notified
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
-     * </ul>
-     * 
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     * 
-     * @since 3.0
-     */
-    public void removeOpenWindowListener (OpenWindowListener listener) {
-        checkWidget();
-        if (listener is null)
-            DWT.error(DWT.ERROR_NULL_ARGUMENT);
-        webBrowser.removeOpenWindowListener(listener);
-    }
-
-    /**  
-     * Removes the listener from the collection of listeners who will
-     * be notified when a progress is made during the loading of the current 
-     * URL or when the loading of the current URL has been completed.
-     *
-     * @param listener the listener which should no longer be notified
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
-     * </ul>
-     * 
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     * 
-     * @since 3.0
-     */
-    public void removeProgressListener (ProgressListener listener) {
-        checkWidget();
-        if (listener is null)
-            DWT.error(DWT.ERROR_NULL_ARGUMENT);
-        webBrowser.removeProgressListener(listener);
-    }
+/**  
+ * Removes the listener from the collection of listeners who will
+ * be notified when a progress is made during the loading of the current 
+ * URL or when the loading of the current URL has been completed.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * 
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ * 
+ * @since 3.0
+ */
+public void removeProgressListener (ProgressListener listener) {
+    checkWidget();
+    if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
+    webBrowser.removeProgressListener (listener);
+}
 
-    /**  
-     * Removes the listener from the collection of listeners who will
-     * be notified when the status text is changed.
-     *
-     * @param listener the listener which should no longer be notified
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
-     * </ul>
-     * 
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     * 
-     * @since 3.0
-     */
-    public void removeStatusTextListener (StatusTextListener listener) {
-        checkWidget();
-        if (listener is null)
-            DWT.error(DWT.ERROR_NULL_ARGUMENT);
-        webBrowser.removeStatusTextListener(listener);
-    }
+/**  
+ * Removes the listener from the collection of listeners who will
+ * be notified when the status text is changed.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * 
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ * 
+ * @since 3.0
+ */
+public void removeStatusTextListener (StatusTextListener listener) {
+    checkWidget();
+    if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
+    webBrowser.removeStatusTextListener (listener);
+}
 
-    /**  
-     * Removes the listener from the collection of listeners who will
-     * be notified when the title of the current document is available
-     * or has changed.
-     *
-     * @param listener the listener which should no longer be notified
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
-     * </ul>
-     * 
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     * 
-     * @since 3.0
-     */
-    public void removeTitleListener (TitleListener listener) {
-        checkWidget();
-        if (listener is null)
-            DWT.error(DWT.ERROR_NULL_ARGUMENT);
-        webBrowser.removeTitleListener(listener);
-    }
+/**  
+ * Removes the listener from the collection of listeners who will
+ * be notified when the title of the current document is available
+ * or has changed.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * 
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ * 
+ * @since 3.0
+ */
+public void removeTitleListener (TitleListener listener) {
+    checkWidget();
+    if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
+    webBrowser.removeTitleListener (listener);
+}
 
-    /**  
-     * Removes the listener from the collection of listeners who will
-     * be notified when a window hosting the receiver needs to be displayed
-     * or hidden.
-     *
-     * @param listener the listener which should no longer be notified
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
-     * </ul>
-     * 
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     * 
-     * @since 3.0
-     */
-    public void removeVisibilityWindowListener (VisibilityWindowListener listener) {
-        checkWidget();
-        if (listener is null)
-            DWT.error(DWT.ERROR_NULL_ARGUMENT);
-        webBrowser.removeVisibilityWindowListener(listener);
-    }
+/**  
+ * Removes the listener from the collection of listeners who will
+ * be notified when a window hosting the receiver needs to be displayed
+ * or hidden.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * 
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ * 
+ * @since 3.0
+ */
+public void removeVisibilityWindowListener (VisibilityWindowListener listener) {
+    checkWidget();
+    if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
+    webBrowser.removeVisibilityWindowListener (listener);
+}
 
-    /**
-     * Renders HTML.
-     * 
-     * <p>
-     * The html parameter is Unicode encoded since it is a java <code>String</code>.
-     * As a result, the HTML meta tag charset should not be set. The charset is implied
-     * by the <code>String</code> itself.
-     * 
-     * @param html the HTML content to be rendered
-     *
-     * @return true if the operation was successful and false otherwise.
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the html is null</li>
-     * </ul>
-     * 
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     *  
-     * @see #setUrl
-     * 
-     * @since 3.0
-     */
-    public bool setText (String html) {
-        checkWidget();
-        if (html is null)
-            DWT.error(DWT.ERROR_NULL_ARGUMENT);
-        return webBrowser.setText(html);
-    }
+/**
+ * Renders HTML.
+ * 
+ * <p>
+ * The html parameter is Unicode encoded since it is a java <code>String</code>.
+ * As a result, the HTML meta tag charset should not be set. The charset is implied
+ * by the <code>String</code> itself.
+ * 
+ * @param html the HTML content to be rendered
+ *
+ * @return true if the operation was successful and false otherwise.
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the html is null</li>
+ * </ul>
+ * 
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *  
+ * @see #setUrl
+ * 
+ * @since 3.0
+ */
+public bool setText (String html) {
+    checkWidget();
+    if (html is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
+    return webBrowser.setText (html);
+}
 
-    /**
-     * Loads a URL.
-     * 
-     * @param url the URL to be loaded
-     *
-     * @return true if the operation was successful and false otherwise.
-     *
-     * @exception IllegalArgumentException <ul>
-     *    <li>ERROR_NULL_ARGUMENT - if the url is null</li>
-     * </ul>
-     * 
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     *  
-     * @see #getUrl
-     * 
-     * @since 3.0
-     */
-    public bool setUrl (String url) {
-        checkWidget();
-        if (url is null)
-            DWT.error(DWT.ERROR_NULL_ARGUMENT);
-        return webBrowser.setUrl(url);
-    }
+/**
+ * Loads a URL.
+ * 
+ * @param url the URL to be loaded
+ *
+ * @return true if the operation was successful and false otherwise.
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the url is null</li>
+ * </ul>
+ * 
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *  
+ * @see #getUrl
+ * 
+ * @since 3.0
+ */
+public bool setUrl (String url) {
+    checkWidget();
+    if (url is null) DWT.error (DWT.ERROR_NULL_ARGUMENT);
+    return webBrowser.setUrl (url);
+}
 
-    /**
-     * Stop any loading and rendering activity.
-     *
-     * @exception DWTException <ul>
-     *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
-     *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
-     * </ul>
-     *
-     * @since 3.0
-     */
-    public void stop () {
-        checkWidget();
-        webBrowser.stop();
-    }
+/**
+ * Stop any loading and rendering activity.
+ *
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ *    <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void stop () {
+    checkWidget();
+    webBrowser.stop ();
 }
+}