Workaround for feature request #1154254 (sticky browser URL) that solves bug #1827766...
[phpeclipse.git] / net.sourceforge.phpeclipse.webbrowser / src / net / sourceforge / phpeclipse / webbrowser / internal / WebBrowser.java
index d0b396f..6fc07d8 100644 (file)
 /**
- * Copyright (c) 2003 IBM Corporation and others. All rights reserved.   This program and the accompanying materials are made
- * available under the terms of the Common Public License v1.0 which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v10.html  * Contributors: IBM - Initial API and implementation
+ * Copyright (c) 2003 IBM Corporation and others. All rights reserved. � This
+ * program and the accompanying materials are made available under the terms of
+ * the Common Public License v1.0 which accompanies this distribution, and is
+ * available at http://www.eclipse.org/legal/cpl-v10.html �* Contributors: IBM -
+ * Initial API and implementation
  */
 
-//TODO 1. Handle the sizing of a popup running in shelled out secondary window.
-//TODO 2. Support printing: waiting on eclipse bug 47937/44823.
+// TODO 1. Handle the sizing of a popup running in shelled out secondary window.
+// TODO 2. Support printing: waiting on eclipse bug 47937/44823.
 package net.sourceforge.phpeclipse.webbrowser.internal;
 
-import java.util.*;
+import java.util.Iterator;
 
 import net.sourceforge.phpeclipse.webbrowser.IURLMap;
 
 import org.eclipse.swt.SWT;
-import org.eclipse.swt.widgets.*;
-import org.eclipse.swt.layout.FillLayout;
-import org.eclipse.swt.layout.GridData;
-import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.browser.Browser;
+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.StatusTextEvent;
+import org.eclipse.swt.browser.StatusTextListener;
+import org.eclipse.swt.browser.TitleEvent;
+import org.eclipse.swt.browser.TitleListener;
+import org.eclipse.swt.browser.WindowEvent;
 import org.eclipse.swt.dnd.Clipboard;
-import org.eclipse.swt.events.*;
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.graphics.Point;
 import org.eclipse.swt.graphics.Rectangle;
-import org.eclipse.ui.help.WorkbenchHelp;
-import org.eclipse.swt.browser.*;
+import org.eclipse.swt.layout.FillLayout;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Combo;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.Listener;
+import org.eclipse.swt.widgets.Menu;
+import org.eclipse.swt.widgets.MenuItem;
+import org.eclipse.swt.widgets.ProgressBar;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.swt.widgets.ToolBar;
+import org.eclipse.swt.widgets.ToolItem;
+import org.eclipse.ui.PlatformUI;
 
 public class WebBrowser extends Composite {
-  protected Composite toolbarComp;
-
-  protected Composite statusComp;
-
-  protected Combo combo;
-
-  protected Clipboard clipboard;
-
-  protected boolean showToolbar;
+       protected Composite toolbarComp;
 
-  protected ToolItem back;
+       protected Composite statusComp;
 
-  protected ToolItem forward;
+       protected Combo combo;
 
-  protected ToolItem stop;
+       protected Clipboard clipboard;
 
-  protected ToolItem favorites;
+       protected boolean showToolbar;
 
-  protected ToolItem refresh;
+       protected ToolItem back;
 
-  protected BusyIndicator busy;
+       protected ToolItem forward;
 
-  protected boolean showStatusbar;
+       protected ToolItem stop;
 
-  protected ProgressBar progress;
+       protected ToolItem favorites;
 
-  protected Label status;
+       protected ToolItem refresh;
 
-  private static int MAX_HISTORY = 50;
+       protected BusyIndicator busy;
 
-  protected static java.util.List history;
+       protected boolean showStatusbar;
 
-  protected Browser browser;
+       protected ProgressBar progress;
 
-  protected Shell shell;
+       protected Label status;
 
-  protected WebBrowserEditor editor;
+       private static int MAX_HISTORY = 50;
 
-  protected String title;
+       protected static java.util.List history;
 
-  public WebBrowser(Composite parent, final boolean showToolbar, final boolean showStatusbar) {
-    super(parent, SWT.NONE);
+       protected Browser browser;
 
-    this.showToolbar = showToolbar;
-    this.showStatusbar = showStatusbar;
+       protected Shell shell;
+
+       protected WebBrowserEditor editor;
+
+       protected String title;
+
+       public WebBrowser(Composite parent, final boolean showToolbar,
+                       final boolean showStatusbar) {
+               super(parent, SWT.NONE);
+
+               this.showToolbar = showToolbar;
+               this.showStatusbar = showStatusbar;
 
-    GridLayout layout = new GridLayout();
-    layout.marginHeight = 3;
-    layout.marginWidth = 3;
-    layout.horizontalSpacing = 3;
-    layout.verticalSpacing = 3;
-    layout.numColumns = 1;
-    setLayout(layout);
-    setLayoutData(new GridData(GridData.FILL_BOTH));
-    clipboard = new Clipboard(parent.getDisplay());
-    WorkbenchHelp.setHelp(this, ContextIds.WEB_BROWSER);
-
-    if (showToolbar) {
-      toolbarComp = new Composite(this, SWT.NONE);
-      GridLayout outerLayout = new GridLayout();
-      outerLayout.numColumns = 2;
-      outerLayout.marginWidth = 0;
-      outerLayout.marginHeight = 0;
-      toolbarComp.setLayout(outerLayout);
-      toolbarComp.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING | GridData.FILL_HORIZONTAL));
-
-      // create the top line, with a combo box for history and a "go" button
-      Composite top = new Composite(toolbarComp, SWT.NONE);
-      GridLayout topLayout = new GridLayout();
-      topLayout.numColumns = 2;
-      topLayout.marginWidth = 0;
-      topLayout.marginHeight = 0;
-      top.setLayout(topLayout);
-      top.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_CENTER | GridData.FILL_HORIZONTAL));
-
-      combo = new Combo(top, SWT.DROP_DOWN);
-
-      updateHistory();
-
-      combo.addSelectionListener(new SelectionAdapter() {
-        public void widgetSelected(SelectionEvent we) {
-          try {
-            if (combo.getSelectionIndex() != -1)
-              setURL(combo.getItem(combo.getSelectionIndex()));
-          } catch (Exception e) {
-          }
-        }
-      });
-      combo.addListener(SWT.DefaultSelection, new Listener() {
-        public void handleEvent(Event e) {
-          setURL(combo.getText());
-        }
-      });
-      combo.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
-      WorkbenchHelp.setHelp(combo, ContextIds.WEB_BROWSER_URL);
-
-      ToolBar toolbar = new ToolBar(top, SWT.FLAT);
-      fillToolBar(toolbar);
-
-      new ToolItem(toolbar, SWT.SEPARATOR);
-
-      busy = new BusyIndicator(toolbarComp, SWT.NONE);
-      busy.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_END));
-    }
-
-    // create a new SWT Web browser widget, checking once again to make sure we can use it in this environment
-    if (WebBrowserUtil.canUseInternalWebBrowser() & WebBrowserUtil.isInternalBrowserOperational())
-      this.browser = new Browser(this, SWT.NONE);
-    else {
-      WebBrowserUtil.openError(WebBrowserUIPlugin.getResource("%errorCouldNotLaunchInternalWebBrowser"));
-      return;
-    }
-
-    if (showToolbar) {
-      back.setEnabled(browser.isBackEnabled());
-      forward.setEnabled(browser.isForwardEnabled());
-    }
-
-    WorkbenchHelp.setHelp(browser, ContextIds.WEB_BROWSER_WEB);
-    GridData data = new GridData();
-    data.horizontalAlignment = GridData.FILL;
-    data.verticalAlignment = GridData.FILL;
-    data.horizontalSpan = 3;
-    data.grabExcessHorizontalSpace = true;
-    data.grabExcessVerticalSpace = true;
-    browser.setLayoutData(data);
-
-    if (showStatusbar)
-      createStatusArea(this);
-
-    addBrowserListeners();
-  }
-
-  /**
-   *  
-   */
-  protected void addBrowserListeners() {
-    if (showStatusbar) {
-      // respond to Browser StatusTextEvents events by updating the status Text label
-      browser.addStatusTextListener(new StatusTextListener() {
-        public void changed(StatusTextEvent event) {
-          status.setText(event.text);
-        }
-      });
-    }
-
-    /**
-     * Add listener for new window creation so that we can instead of opening a separate new window in which the session is lost, we
-     * can instead open a new window in a new shell within the browser area thereby maintaining the session.
-     */
-    browser.addOpenWindowListener(new OpenWindowListener() {
-      public void open(WindowEvent event) {
-        Shell shell2 = new Shell(getDisplay());
-        shell2.setLayout(new FillLayout());
-        shell2.setText(WebBrowserUIPlugin.getResource("%viewWebBrowserTitle"));
-        shell2.setImage(getShell().getImage());
-        WebBrowser browser2 = new WebBrowser(shell2, showToolbar, showStatusbar);
-        browser2.shell = shell2;
-        event.browser = browser2.browser;
-        shell2.open();
-      }
-    });
-
-    browser.addCloseWindowListener(new CloseWindowListener() {
-      public void close(WindowEvent event) {
-        // if shell is not null, it must be a secondary popup window, else its an editor window
-        if (shell != null)
-          shell.dispose();
-        else
-          editor.closeEditor();
-      }
-    });
-
-    browser.addProgressListener(new ProgressListener() {
-      public void changed(ProgressEvent event) {
-        if (event.total == 0)
-          return;
-
-        boolean done = (event.current == event.total);
-
-        int percentProgress = event.current * 100 / event.total;
-        if (showStatusbar) {
-          if (done)
-            progress.setSelection(0);
-          else
-            progress.setSelection(percentProgress);
-        }
-
-        if (showToolbar) {
-          if (!busy.isBusy() && (percentProgress > 0 && percentProgress < 100)) {
-            busy.setBusy(true);
-          }
-          // Once the progress hits 100 percent, done, set busy to false
-          else if (busy.isBusy() && done) {
-            busy.setBusy(false);
-          }
-        }
-      }
-
-      public void completed(ProgressEvent event) {
-        if (showStatusbar)
-          progress.setSelection(0);
-        if (showToolbar) {
-          busy.setBusy(false);
-          back.setEnabled(browser.isBackEnabled());
-          forward.setEnabled(browser.isForwardEnabled());
-        }
-      }
-    });
-
-    if (showToolbar) {
-      browser.addLocationListener(new LocationListener() {
-        public void changed(LocationEvent event) {
-          if (!event.top)
-            return;
-          if (!isHome()) {
-            combo.setText(event.location);
-            addToHistory(event.location);
-            updateHistory();
-          } else
-            combo.setText("");
-        }
-
-        public void changing(LocationEvent event) {
-        }
-      });
-    }
-
-    browser.addTitleListener(new TitleListener() {
-      public void changed(TitleEvent event) {
-        title = event.title;
-      }
-    });
-  }
-
-  /**
-   * Return the underlying browser control.
-   * 
-   * @return org.eclipse.swt.browser.Browser
-   */
-  public Browser getBrowser() {
-    return browser;
-  }
-
-  /**
-   *  
-   */
-  protected void forward() {
-    browser.forward();
-  }
-
-  /**
-   *  
-   */
-  protected void back() {
-    browser.back();
-  }
-
-  /**
-   *  
-   */
-  protected void stop() {
-    browser.stop();
-  }
-
-  /**
-   *  
-   */
-  protected void navigate(String url) {
-    Trace.trace(Trace.FINER, "Navigate: " + url);
-    if (url != null && url.equals(getURL())) {
-      refresh();
-      return;
-    }
-    browser.setUrl(url);
-  }
-
-  /**
-   * Refresh the currently viewed page.
-   */
-  public void refresh() {
-    browser.refresh();
-  }
-
-  protected void setURL(String url, boolean browse) {
-    Trace.trace(Trace.FINEST, "setURL: " + url + " " + browse);
-    if (url == null) {
-      home();
-      return;
-    }
-
-    if (url.endsWith(WebBrowserPreference.getHomePageURL().substring(9)))
-      return;
-
-    // check URL maps
-    Iterator iterator = WebBrowserUtil.getURLMaps().iterator();
-    String newURL = null;
-    while (iterator.hasNext() && newURL == null) {
-      try {
-        IURLMap map = (IURLMap) iterator.next();
-        newURL = map.getMappedURL(url);
-      } catch (Exception e) {
-      }
-    }
-    if (newURL != null)
-      url = newURL;
-
-    if (browse)
-      navigate(url);
-
-    addToHistory(url);
-    updateHistory();
-  }
-
-  protected void addToHistory(String url) {
-    if (history == null)
-      history = WebBrowserPreference.getInternalWebBrowserHistory();
-    int found = -1;
-    int size = history.size();
-    for (int i = 0; i < size; i++) {
-      String s = (String) history.get(i);
-      if (s.equals(url)) {
-        found = i;
-        break;
-      }
-    }
-
-    if (found == -1) {
-      if (size >= MAX_HISTORY)
-        history.remove(size - 1);
-      history.add(0, url);
-      WebBrowserPreference.setInternalWebBrowserHistory(history);
-    } else if (found != 0) {
-      history.remove(found);
-      history.add(0, url);
-      WebBrowserPreference.setInternalWebBrowserHistory(history);
-    }
-  }
-
-  public void setURL(String url) {
-    setURL(url, true);
-  }
-
-  /**
-   * Creates the Web browser status area.
-   */
-  private void createStatusArea(Composite parent) {
-    Composite composite = new Composite(parent, SWT.NONE);
-    GridLayout layout = new GridLayout();
-    layout.numColumns = 2;
-    layout.marginHeight = 0;
-    layout.marginWidth = 0;
-    layout.horizontalSpacing = 4;
-    layout.verticalSpacing = 0;
-    composite.setLayout(layout);
-    composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
-
-    // Add a label for displaying status messages as they are received from the control
-    status = new Label(composite, SWT.SINGLE | SWT.READ_ONLY);
-    GridData gridData = new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_FILL);
-    gridData.horizontalIndent = 2;
-    status.setLayoutData(gridData);
-
-    // Add a progress bar to display downloading progress information
-    progress = new ProgressBar(composite, SWT.BORDER);
-    gridData = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING | GridData.VERTICAL_ALIGN_FILL);
-    gridData.widthHint = 100;
-    gridData.heightHint = 10;
-    progress.setLayoutData(gridData);
-  }
-
-  /**
-   *  
-   */
-  public void dispose() {
-    super.dispose();
-
-    showStatusbar = false;
-    showToolbar = false;
-
-    if (busy != null)
-      busy.dispose();
-    busy = null;
-
-    browser = null;
-  }
-
-  /**
-   * Populate the toolbar.
-   * 
-   * @param toolbar
-   *          org.eclipse.swt.widgets.ToolBar
-   */
-  private void fillToolBar(final ToolBar toolbar) {
-    ToolItem go = new ToolItem(toolbar, SWT.NONE);
-    go.setImage(ImageResource.getImage(ImageResource.IMG_ELCL_NAV_GO));
-    go.setHotImage(ImageResource.getImage(ImageResource.IMG_CLCL_NAV_GO));
-    go.setDisabledImage(ImageResource.getImage(ImageResource.IMG_DLCL_NAV_GO));
-    go.setToolTipText(WebBrowserUIPlugin.getResource("%actionWebBrowserGo"));
-    go.addSelectionListener(new SelectionAdapter() {
-      public void widgetSelected(SelectionEvent event) {
-        setURL(combo.getText());
-      }
-    });
-
-    new ToolItem(toolbar, SWT.SEPARATOR);
-
-    favorites = new ToolItem(toolbar, SWT.DROP_DOWN);
-    favorites.setImage(ImageResource.getImage(ImageResource.IMG_ELCL_NAV_FAVORITES));
-    favorites.setHotImage(ImageResource.getImage(ImageResource.IMG_CLCL_NAV_FAVORITES));
-    favorites.setDisabledImage(ImageResource.getImage(ImageResource.IMG_DLCL_NAV_FAVORITES));
-    favorites.setToolTipText(WebBrowserUIPlugin.getResource("%actionWebBrowserFavorites"));
-
-    favorites.addSelectionListener(new SelectionAdapter() {
-      public void widgetSelected(SelectionEvent event) {
-        if (event.detail == SWT.ARROW) {
-          Rectangle r = favorites.getBounds();
-          showFavorites(toolbar, toolbar.toDisplay(r.x, r.y + r.height));
-        } else
-          addFavorite();
-      }
-    });
-
-    // create back and forward actions
-    back = new ToolItem(toolbar, SWT.NONE);
-    back.setImage(ImageResource.getImage(ImageResource.IMG_ELCL_NAV_BACKWARD));
-    back.setHotImage(ImageResource.getImage(ImageResource.IMG_CLCL_NAV_BACKWARD));
-    back.setDisabledImage(ImageResource.getImage(ImageResource.IMG_DLCL_NAV_BACKWARD));
-    back.setToolTipText(WebBrowserUIPlugin.getResource("%actionWebBrowserBack"));
-    back.addSelectionListener(new SelectionAdapter() {
-      public void widgetSelected(SelectionEvent event) {
-        back();
-      }
-    });
-
-    forward = new ToolItem(toolbar, SWT.NONE);
-    forward.setImage(ImageResource.getImage(ImageResource.IMG_ELCL_NAV_FORWARD));
-    forward.setHotImage(ImageResource.getImage(ImageResource.IMG_CLCL_NAV_FORWARD));
-    forward.setDisabledImage(ImageResource.getImage(ImageResource.IMG_DLCL_NAV_FORWARD));
-    forward.setToolTipText(WebBrowserUIPlugin.getResource("%actionWebBrowserForward"));
-    forward.addSelectionListener(new SelectionAdapter() {
-      public void widgetSelected(SelectionEvent event) {
-        forward();
-      }
-    });
-
-    // create refresh, stop, and print actions
-    stop = new ToolItem(toolbar, SWT.NONE);
-    stop.setImage(ImageResource.getImage(ImageResource.IMG_ELCL_NAV_STOP));
-    stop.setHotImage(ImageResource.getImage(ImageResource.IMG_CLCL_NAV_STOP));
-    stop.setDisabledImage(ImageResource.getImage(ImageResource.IMG_DLCL_NAV_STOP));
-    stop.setToolTipText(WebBrowserUIPlugin.getResource("%actionWebBrowserStop"));
-    stop.addSelectionListener(new SelectionAdapter() {
-      public void widgetSelected(SelectionEvent event) {
-        stop();
-      }
-    });
-
-    refresh = new ToolItem(toolbar, SWT.NONE);
-    refresh.setImage(ImageResource.getImage(ImageResource.IMG_ELCL_NAV_REFRESH));
-    refresh.setHotImage(ImageResource.getImage(ImageResource.IMG_CLCL_NAV_REFRESH));
-    refresh.setDisabledImage(ImageResource.getImage(ImageResource.IMG_DLCL_NAV_REFRESH));
-    refresh.setToolTipText(WebBrowserUIPlugin.getResource("%actionWebBrowserRefresh"));
-    refresh.addSelectionListener(new SelectionAdapter() {
-      public void widgetSelected(SelectionEvent event) {
-        refresh();
-      }
-    });
-  }
-
-  protected void addFavorite() {
-    java.util.List list = WebBrowserPreference.getInternalWebBrowserFavorites();
-    Favorite f = new Favorite(title, browser.getUrl());
-    if (!list.contains(f)) {
-      list.add(f);
-      WebBrowserPreference.setInternalWebBrowserFavorites(list);
-    }
-  }
-
-  protected void showFavorites(Control parent, Point p) {
-    Menu perspectiveBarMenu = null;
-    if (perspectiveBarMenu == null) {
-      Menu menu = new Menu(parent);
-
-      // locked favorites
-      Iterator iterator = WebBrowserUtil.getLockedFavorites().iterator();
-      if (iterator.hasNext()) {
-        while (iterator.hasNext()) {
-          final Favorite f = (Favorite) iterator.next();
-          MenuItem item = new MenuItem(menu, SWT.NONE);
-          item.setText(f.getName());
-          item.setImage(ImageResource.getImage(ImageResource.IMG_FAVORITE));
-          item.addSelectionListener(new SelectionAdapter() {
-            public void widgetSelected(SelectionEvent event) {
-              setURL(f.getURL());
-            }
-          });
-        }
-
-        new MenuItem(menu, SWT.SEPARATOR);
-      }
-
-      iterator = WebBrowserPreference.getInternalWebBrowserFavorites().iterator();
-      if (!iterator.hasNext()) {
-        MenuItem item = new MenuItem(menu, SWT.NONE);
-        item.setText(WebBrowserUIPlugin.getResource("%actionWebBrowserNoFavorites"));
-      }
-      while (iterator.hasNext()) {
-        final Favorite f = (Favorite) iterator.next();
-        MenuItem item = new MenuItem(menu, SWT.NONE);
-        item.setText(f.getName());
-        item.setImage(ImageResource.getImage(ImageResource.IMG_FAVORITE));
-        item.addSelectionListener(new SelectionAdapter() {
-          public void widgetSelected(SelectionEvent event) {
-            setURL(f.getURL());
-          }
-        });
-      }
-
-      new MenuItem(menu, SWT.SEPARATOR);
-
-      MenuItem item = new MenuItem(menu, SWT.NONE);
-      item.setText(WebBrowserUIPlugin.getResource("%actionWebBrowserOrganizeFavorites"));
-      item.addSelectionListener(new SelectionAdapter() {
-        public void widgetSelected(SelectionEvent event) {
-          OrganizeFavoritesDialog dialog = new OrganizeFavoritesDialog(shell);
-          dialog.open();
-        }
-      });
-
-      perspectiveBarMenu = menu;
-    }
-
-    if (perspectiveBarMenu != null) {
-      perspectiveBarMenu.setLocation(p.x, p.y);
-      perspectiveBarMenu.setVisible(true);
-    }
-  }
-
-  public void home() {
-    navigate(WebBrowserPreference.getHomePageURL());
-  }
-
-  /**
-   * Returns true if the homepage is currently being displayed.
-   * 
-   * @return boolean
-   */
-  protected boolean isHome() {
-    return getURL() != null && getURL().endsWith(WebBrowserPreference.getHomePageURL().substring(9));
-  }
-
-  protected String getURL() {
-    return browser.getUrl();
-  }
-
-  /**
-   * Update the history list to the global copy.
-   */
-  protected void updateHistory() {
-    if (combo == null)
-      return;
-
-    String temp = combo.getText();
-    if (history == null)
-      history = WebBrowserPreference.getInternalWebBrowserHistory();
-
-    String[] historyList = new String[history.size()];
-    history.toArray(historyList);
-    combo.setItems(historyList);
-
-    combo.setText(temp);
-  }
-
-  public void addProgressListener(ProgressListener listener) {
-    browser.addProgressListener(listener);
-  }
-
-  public void addStatusTextListener(StatusTextListener listener) {
-    browser.addStatusTextListener(listener);
-  }
-
-  public void addTitleListener(TitleListener listener) {
-    browser.addTitleListener(listener);
-  }
+               GridLayout layout = new GridLayout();
+               layout.marginHeight = 3;
+               layout.marginWidth = 3;
+               layout.horizontalSpacing = 3;
+               layout.verticalSpacing = 3;
+               layout.numColumns = 1;
+               setLayout(layout);
+               setLayoutData(new GridData(GridData.FILL_BOTH));
+               clipboard = new Clipboard(parent.getDisplay());
+               PlatformUI.getWorkbench().getHelpSystem().setHelp(this,
+                               ContextIds.WEB_BROWSER);
+
+               if (showToolbar) {
+                       toolbarComp = new Composite(this, SWT.NONE);
+                       GridLayout outerLayout = new GridLayout();
+                       outerLayout.numColumns = 2;
+                       outerLayout.marginWidth = 0;
+                       outerLayout.marginHeight = 0;
+                       toolbarComp.setLayout(outerLayout);
+                       toolbarComp.setLayoutData(new GridData(
+                                       GridData.VERTICAL_ALIGN_BEGINNING
+                                                       | GridData.FILL_HORIZONTAL));
+
+                       // create the top line, with a combo box for history and a "go"
+                       // button
+                       Composite top = new Composite(toolbarComp, SWT.NONE);
+                       GridLayout topLayout = new GridLayout();
+                       topLayout.numColumns = 2;
+                       topLayout.marginWidth = 0;
+                       topLayout.marginHeight = 0;
+                       top.setLayout(topLayout);
+                       top.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_CENTER
+                                       | GridData.FILL_HORIZONTAL));
+
+                       combo = new Combo(top, SWT.DROP_DOWN);
+
+                       updateHistory();
+
+                       combo.addSelectionListener(new SelectionAdapter() {
+                               public void widgetSelected(SelectionEvent we) {
+                                       try {
+                                               if (combo.getSelectionIndex() != -1)
+                                                       setURL(combo.getItem(combo.getSelectionIndex()),
+                                                                       false);
+                                       } catch (Exception e) {
+                                       }
+                               }
+                       });
+                       combo.addListener(SWT.DefaultSelection, new Listener() {
+                               public void handleEvent(Event e) {
+                                       setURL(combo.getText());
+                               }
+                       });
+                       combo.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
+                       PlatformUI.getWorkbench().getHelpSystem().setHelp(combo,
+                                       ContextIds.WEB_BROWSER_URL);
+
+                       ToolBar toolbar = new ToolBar(top, SWT.FLAT);
+                       fillToolBar(toolbar);
+
+                       new ToolItem(toolbar, SWT.SEPARATOR);
+
+                       busy = new BusyIndicator(toolbarComp, SWT.NONE);
+                       busy.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_END));
+               }
+
+               // create a new SWT Web browser widget, checking once again to make sure
+               // we can use it in this environment
+               // if (WebBrowserUtil.canUseInternalWebBrowser() &
+               // WebBrowserUtil.isInternalBrowserOperational())
+               if (WebBrowserUtil.isInternalBrowserOperational())
+                       this.browser = new Browser(this, SWT.NONE);
+               else {
+                       WebBrowserUtil.openError(WebBrowserUIPlugin
+                                       .getResource("%errorCouldNotLaunchInternalWebBrowser"));
+                       return;
+               }
+
+               if (showToolbar) {
+                       back.setEnabled(browser.isBackEnabled());
+                       forward.setEnabled(browser.isForwardEnabled());
+               }
+
+               PlatformUI.getWorkbench().getHelpSystem().setHelp(browser,
+                               ContextIds.WEB_BROWSER_WEB);
+               GridData data = new GridData();
+               data.horizontalAlignment = GridData.FILL;
+               data.verticalAlignment = GridData.FILL;
+               data.horizontalSpan = 3;
+               data.grabExcessHorizontalSpace = true;
+               data.grabExcessVerticalSpace = true;
+               browser.setLayoutData(data);
+
+               if (showStatusbar)
+                       createStatusArea(this);
+
+               addBrowserListeners();
+       }
+
+       /**
+        * 
+        */
+       protected void addBrowserListeners() {
+               if (showStatusbar) {
+                       // respond to Browser StatusTextEvents events by updating the status
+                       // Text label
+                       browser.addStatusTextListener(new StatusTextListener() {
+                               public void changed(StatusTextEvent event) {
+                                       status.setText(event.text);
+                               }
+                       });
+               }
+
+               /**
+                * Add listener for new window creation so that we can instead of
+                * opening a separate new window in which the session is lost, we can
+                * instead open a new window in a new shell within the browser area
+                * thereby maintaining the session.
+                */
+               browser.addOpenWindowListener(new OpenWindowListener() {
+                       public void open(WindowEvent event) {
+                               Shell shell2 = new Shell(getDisplay());
+                               shell2.setLayout(new FillLayout());
+                               shell2.setText(WebBrowserUIPlugin
+                                               .getResource("%viewWebBrowserTitle"));
+                               shell2.setImage(getShell().getImage());
+                               WebBrowser browser2 = new WebBrowser(shell2, showToolbar,
+                                               showStatusbar);
+                               browser2.shell = shell2;
+                               event.browser = browser2.browser;
+                               shell2.open();
+                       }
+               });
+
+               browser.addCloseWindowListener(new CloseWindowListener() {
+                       public void close(WindowEvent event) {
+                               // if shell is not null, it must be a secondary popup window,
+                               // else its an editor window
+                               if (shell != null)
+                                       shell.dispose();
+                               else {
+                                       // #1365431 (toshihiro) editor.closeEditor(); causes NPE
+                                       if (editor != null)
+                                               editor.closeEditor();
+                               }
+                       }
+               });
+
+               browser.addProgressListener(new ProgressListener() {
+                       public void changed(ProgressEvent event) {
+                               if (event.total == 0)
+                                       return;
+
+                               boolean done = (event.current == event.total);
+
+                               int percentProgress = event.current * 100 / event.total;
+                               if (showStatusbar) {
+                                       if (done)
+                                               progress.setSelection(0);
+                                       else
+                                               progress.setSelection(percentProgress);
+                               }
+
+                               if (showToolbar) {
+                                       if (!busy.isBusy()
+                                                       && (percentProgress > 0 && percentProgress < 100)) {
+                                               busy.setBusy(true);
+                                       }
+                                       // Once the progress hits 100 percent, done, set busy to
+                                       // false
+                                       else if (busy.isBusy() && done) {
+                                               busy.setBusy(false);
+                                       }
+                               }
+                       }
+
+                       public void completed(ProgressEvent event) {
+                               if (showStatusbar)
+                                       progress.setSelection(0);
+                               if (showToolbar) {
+                                       busy.setBusy(false);
+                                       back.setEnabled(browser.isBackEnabled());
+                                       forward.setEnabled(browser.isForwardEnabled());
+                               }
+                       }
+               });
+
+               if (showToolbar) {
+                       browser.addLocationListener(new LocationListener() {
+                               public void changed(LocationEvent event) {
+                                       if (!event.top)
+                                               return;
+                                       if (!isHome()) {
+                                               combo.setText(event.location);
+                                               addToHistory(event.location);
+                                               updateHistory();
+                                       } else
+                                               combo.setText("");
+                               }
+
+                               public void changing(LocationEvent event) {
+                               }
+                       });
+               }
+
+               browser.addTitleListener(new TitleListener() {
+                       public void changed(TitleEvent event) {
+                               title = event.title;
+                       }
+               });
+       }
+
+       /**
+        * Return the underlying browser control.
+        * 
+        * @return org.eclipse.swt.browser.Browser
+        */
+       public Browser getBrowser() {
+               return browser;
+       }
+
+       /**
+        * 
+        */
+       protected void forward() {
+               browser.forward();
+       }
+
+       /**
+        * 
+        */
+       protected void back() {
+               browser.back();
+       }
+
+       /**
+        * 
+        */
+       protected void stop() {
+               browser.stop();
+       }
+
+       /**
+        * 
+        */
+       protected void navigate(String url) {
+               Trace.trace(Trace.FINER, "Navigate: " + url);
+               if (url != null && url.equals(getURL())) {
+                       refresh();
+                       return;
+               }
+               browser.setUrl(url);
+       }
+
+       /**
+        * Refresh the currently viewed page.
+        */
+       public void refresh() {
+               browser.refresh();
+       }
+
+       protected void setURL(String url, boolean browse) {
+               Trace.trace(Trace.FINEST, "setURL: " + url + " " + browse);
+               if (url == null) {
+                       home();
+                       return;
+               }
+
+               if (url.endsWith(WebBrowserPreference.getHomePageURL().substring(9)))
+                       return;
+
+               // check URL maps
+               Iterator iterator = WebBrowserUtil.getURLMaps().iterator();
+               String newURL = null;
+               while (iterator.hasNext() && newURL == null) {
+                       try {
+                               IURLMap map = (IURLMap) iterator.next();
+                               newURL = map.getMappedURL(url);
+                       } catch (Exception e) {
+                       }
+               }
+               if (newURL != null)
+                       url = newURL;
+
+               if (browse) {
+                       navigate(url);
+
+                       addToHistory(url);
+                       updateHistory();
+               }
+       }
+
+       protected void addToHistory(String url) {
+               if (history == null)
+                       history = WebBrowserPreference.getInternalWebBrowserHistory();
+               int found = -1;
+               int size = history.size();
+               for (int i = 0; i < size; i++) {
+                       String s = (String) history.get(i);
+                       if (s.equals(url)) {
+                               found = i;
+                               break;
+                       }
+               }
+
+               if (found == -1) {
+                       if (size >= MAX_HISTORY)
+                               history.remove(size - 1);
+                       history.add(0, url);
+                       WebBrowserPreference.setInternalWebBrowserHistory(history);
+               } else if (found != 0) {
+                       history.remove(found);
+                       history.add(0, url);
+                       WebBrowserPreference.setInternalWebBrowserHistory(history);
+               }
+       }
+
+       public void setURL(String url) {
+               setURL(url, true);
+       }
+
+       /**
+        * Creates the Web browser status area.
+        */
+       private void createStatusArea(Composite parent) {
+               Composite composite = new Composite(parent, SWT.NONE);
+               GridLayout layout = new GridLayout();
+               layout.numColumns = 2;
+               layout.marginHeight = 0;
+               layout.marginWidth = 0;
+               layout.horizontalSpacing = 4;
+               layout.verticalSpacing = 0;
+               composite.setLayout(layout);
+               composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
+
+               // Add a label for displaying status messages as they are received from
+               // the control
+               status = new Label(composite, SWT.SINGLE | SWT.READ_ONLY);
+               GridData gridData = new GridData(GridData.FILL_HORIZONTAL
+                               | GridData.VERTICAL_ALIGN_FILL);
+               gridData.horizontalIndent = 2;
+               status.setLayoutData(gridData);
+
+               // Add a progress bar to display downloading progress information
+               progress = new ProgressBar(composite, SWT.BORDER);
+               gridData = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING
+                               | GridData.VERTICAL_ALIGN_FILL);
+               gridData.widthHint = 100;
+               gridData.heightHint = 10;
+               progress.setLayoutData(gridData);
+       }
+
+       /**
+        * 
+        */
+       public void dispose() {
+               super.dispose();
+
+               showStatusbar = false;
+               showToolbar = false;
+
+               if (busy != null)
+                       busy.dispose();
+               busy = null;
+
+               browser = null;
+       }
+
+       /**
+        * Populate the toolbar.
+        * 
+        * @param toolbar
+        *            org.eclipse.swt.widgets.ToolBar
+        */
+       private void fillToolBar(final ToolBar toolbar) {
+               ToolItem go = new ToolItem(toolbar, SWT.NONE);
+               go.setImage(ImageResource.getImage(ImageResource.IMG_ELCL_NAV_GO));
+               go.setHotImage(ImageResource.getImage(ImageResource.IMG_CLCL_NAV_GO));
+               go.setDisabledImage(ImageResource
+                               .getImage(ImageResource.IMG_DLCL_NAV_GO));
+               go
+                               .setToolTipText(WebBrowserUIPlugin
+                                               .getResource("%actionWebBrowserGo"));
+               go.addSelectionListener(new SelectionAdapter() {
+                       public void widgetSelected(SelectionEvent event) {
+                               setURL(combo.getText());
+                       }
+               });
+
+               new ToolItem(toolbar, SWT.SEPARATOR);
+
+               favorites = new ToolItem(toolbar, SWT.DROP_DOWN);
+               favorites.setImage(ImageResource
+                               .getImage(ImageResource.IMG_ELCL_NAV_FAVORITES));
+               favorites.setHotImage(ImageResource
+                               .getImage(ImageResource.IMG_CLCL_NAV_FAVORITES));
+               favorites.setDisabledImage(ImageResource
+                               .getImage(ImageResource.IMG_DLCL_NAV_FAVORITES));
+               favorites.setToolTipText(WebBrowserUIPlugin
+                               .getResource("%actionWebBrowserFavorites"));
+
+               favorites.addSelectionListener(new SelectionAdapter() {
+                       public void widgetSelected(SelectionEvent event) {
+                               if (event.detail == SWT.ARROW) {
+                                       Rectangle r = favorites.getBounds();
+                                       showFavorites(toolbar, toolbar.toDisplay(r.x, r.y
+                                                       + r.height));
+                               } else
+                                       addFavorite();
+                       }
+               });
+
+               // create back and forward actions
+               back = new ToolItem(toolbar, SWT.NONE);
+               back.setImage(ImageResource
+                               .getImage(ImageResource.IMG_ELCL_NAV_BACKWARD));
+               back.setHotImage(ImageResource
+                               .getImage(ImageResource.IMG_CLCL_NAV_BACKWARD));
+               back.setDisabledImage(ImageResource
+                               .getImage(ImageResource.IMG_DLCL_NAV_BACKWARD));
+               back.setToolTipText(WebBrowserUIPlugin
+                               .getResource("%actionWebBrowserBack"));
+               back.addSelectionListener(new SelectionAdapter() {
+                       public void widgetSelected(SelectionEvent event) {
+                               back();
+                       }
+               });
+
+               forward = new ToolItem(toolbar, SWT.NONE);
+               forward.setImage(ImageResource
+                               .getImage(ImageResource.IMG_ELCL_NAV_FORWARD));
+               forward.setHotImage(ImageResource
+                               .getImage(ImageResource.IMG_CLCL_NAV_FORWARD));
+               forward.setDisabledImage(ImageResource
+                               .getImage(ImageResource.IMG_DLCL_NAV_FORWARD));
+               forward.setToolTipText(WebBrowserUIPlugin
+                               .getResource("%actionWebBrowserForward"));
+               forward.addSelectionListener(new SelectionAdapter() {
+                       public void widgetSelected(SelectionEvent event) {
+                               forward();
+                       }
+               });
+
+               // create refresh, stop, and print actions
+               stop = new ToolItem(toolbar, SWT.NONE);
+               stop.setImage(ImageResource.getImage(ImageResource.IMG_ELCL_NAV_STOP));
+               stop.setHotImage(ImageResource
+                               .getImage(ImageResource.IMG_CLCL_NAV_STOP));
+               stop.setDisabledImage(ImageResource
+                               .getImage(ImageResource.IMG_DLCL_NAV_STOP));
+               stop.setToolTipText(WebBrowserUIPlugin
+                               .getResource("%actionWebBrowserStop"));
+               stop.addSelectionListener(new SelectionAdapter() {
+                       public void widgetSelected(SelectionEvent event) {
+                               stop();
+                       }
+               });
+
+               refresh = new ToolItem(toolbar, SWT.NONE);
+               refresh.setImage(ImageResource
+                               .getImage(ImageResource.IMG_ELCL_NAV_REFRESH));
+               refresh.setHotImage(ImageResource
+                               .getImage(ImageResource.IMG_CLCL_NAV_REFRESH));
+               refresh.setDisabledImage(ImageResource
+                               .getImage(ImageResource.IMG_DLCL_NAV_REFRESH));
+               refresh.setToolTipText(WebBrowserUIPlugin
+                               .getResource("%actionWebBrowserRefresh"));
+               refresh.addSelectionListener(new SelectionAdapter() {
+                       public void widgetSelected(SelectionEvent event) {
+                               refresh();
+                       }
+               });
+       }
+
+       protected void addFavorite() {
+               java.util.List list = WebBrowserPreference
+                               .getInternalWebBrowserFavorites();
+               Favorite f = new Favorite(title, browser.getUrl());
+               if (!list.contains(f)) {
+                       list.add(f);
+                       WebBrowserPreference.setInternalWebBrowserFavorites(list);
+               }
+       }
+
+       protected void showFavorites(Control parent, Point p) {
+               Menu perspectiveBarMenu = null;
+               if (perspectiveBarMenu == null) {
+                       Menu menu = new Menu(parent);
+
+                       // locked favorites
+                       Iterator iterator = WebBrowserUtil.getLockedFavorites().iterator();
+                       if (iterator.hasNext()) {
+                               while (iterator.hasNext()) {
+                                       final Favorite f = (Favorite) iterator.next();
+                                       MenuItem item = new MenuItem(menu, SWT.NONE);
+                                       item.setText(f.getName());
+                                       item.setImage(ImageResource
+                                                       .getImage(ImageResource.IMG_FAVORITE));
+                                       item.addSelectionListener(new SelectionAdapter() {
+                                               public void widgetSelected(SelectionEvent event) {
+                                                       setURL(f.getURL());
+                                               }
+                                       });
+                               }
+
+                               new MenuItem(menu, SWT.SEPARATOR);
+                       }
+
+                       iterator = WebBrowserPreference.getInternalWebBrowserFavorites()
+                                       .iterator();
+                       if (!iterator.hasNext()) {
+                               MenuItem item = new MenuItem(menu, SWT.NONE);
+                               item.setText(WebBrowserUIPlugin
+                                               .getResource("%actionWebBrowserNoFavorites"));
+                       }
+                       while (iterator.hasNext()) {
+                               final Favorite f = (Favorite) iterator.next();
+                               MenuItem item = new MenuItem(menu, SWT.NONE);
+                               item.setText(f.getName());
+                               item.setImage(ImageResource
+                                               .getImage(ImageResource.IMG_FAVORITE));
+                               item.addSelectionListener(new SelectionAdapter() {
+                                       public void widgetSelected(SelectionEvent event) {
+                                               setURL(f.getURL());
+                                       }
+                               });
+                       }
+
+                       new MenuItem(menu, SWT.SEPARATOR);
+
+                       MenuItem item = new MenuItem(menu, SWT.NONE);
+                       item.setText(WebBrowserUIPlugin
+                                       .getResource("%actionWebBrowserOrganizeFavorites"));
+                       item.addSelectionListener(new SelectionAdapter() {
+                               public void widgetSelected(SelectionEvent event) {
+                                       OrganizeFavoritesDialog dialog = new OrganizeFavoritesDialog(
+                                                       shell);
+                                       dialog.open();
+                               }
+                       });
+
+                       perspectiveBarMenu = menu;
+               }
+
+               if (perspectiveBarMenu != null) {
+                       perspectiveBarMenu.setLocation(p.x, p.y);
+                       perspectiveBarMenu.setVisible(true);
+               }
+       }
+
+       public void home() {
+               navigate(WebBrowserPreference.getHomePageURL());
+       }
+
+       /**
+        * Returns true if the homepage is currently being displayed.
+        * 
+        * @return boolean
+        */
+       protected boolean isHome() {
+               return getURL() != null
+                               && getURL().endsWith(
+                                               WebBrowserPreference.getHomePageURL().substring(9));
+       }
+
+       public String getURL() {
+               return browser.getUrl();
+       }
+
+       /**
+        * Update the history list to the global copy.
+        */
+       protected void updateHistory() {
+               if (combo == null)
+                       return;
+
+               String temp = combo.getText();
+               if (history == null)
+                       history = WebBrowserPreference.getInternalWebBrowserHistory();
+
+               String[] historyList = new String[history.size()];
+               history.toArray(historyList);
+               combo.setItems(historyList);
+
+               combo.setText(temp);
+       }
+
+       public void addProgressListener(ProgressListener listener) {
+               browser.addProgressListener(listener);
+       }
+
+       public void addStatusTextListener(StatusTextListener listener) {
+               browser.addStatusTextListener(listener);
+       }
+
+       public void addTitleListener(TitleListener listener) {
+               browser.addTitleListener(listener);
+       }
 }
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