net.sourceforge.phpeclipse.webbrowser/src/net/sourceforge/phpeclipse/webbrowser/internal/WebBrowser.java

   1 /**
   2  * Copyright (c) 2003 IBM Corporation and others. All rights reserved. � This
   3  * program and the accompanying materials are made available under the terms of
   4  * the Common Public License v1.0 which accompanies this distribution, and is
   5  * available at http://www.eclipse.org/legal/cpl-v10.html �* Contributors: IBM -
   6  * Initial API and implementation
   7  */
   8
   9 // TODO 1. Handle the sizing of a popup running in shelled out secondary window.
  10 // TODO 2. Support printing: waiting on eclipse bug 47937/44823.
  11 package net.sourceforge.phpeclipse.webbrowser.internal;
  12
  13 import java.util.Iterator;
  14
  15 import net.sourceforge.phpeclipse.webbrowser.IURLMap;
  16
  17 import org.eclipse.swt.SWT;
  18 import org.eclipse.swt.browser.Browser;
  19 import org.eclipse.swt.browser.CloseWindowListener;
  20 import org.eclipse.swt.browser.LocationEvent;
  21 import org.eclipse.swt.browser.LocationListener;
  22 import org.eclipse.swt.browser.OpenWindowListener;
  23 import org.eclipse.swt.browser.ProgressEvent;
  24 import org.eclipse.swt.browser.ProgressListener;
  25 import org.eclipse.swt.browser.StatusTextEvent;
  26 import org.eclipse.swt.browser.StatusTextListener;
  27 import org.eclipse.swt.browser.TitleEvent;
  28 import org.eclipse.swt.browser.TitleListener;
  29 import org.eclipse.swt.browser.WindowEvent;
  30 import org.eclipse.swt.dnd.Clipboard;
  31 import org.eclipse.swt.events.SelectionAdapter;
  32 import org.eclipse.swt.events.SelectionEvent;
  33 import org.eclipse.swt.graphics.Point;
  34 import org.eclipse.swt.graphics.Rectangle;
  35 import org.eclipse.swt.layout.FillLayout;
  36 import org.eclipse.swt.layout.GridData;
  37 import org.eclipse.swt.layout.GridLayout;
  38 import org.eclipse.swt.widgets.Combo;
  39 import org.eclipse.swt.widgets.Composite;
  40 import org.eclipse.swt.widgets.Control;
  41 import org.eclipse.swt.widgets.Event;
  42 import org.eclipse.swt.widgets.Label;
  43 import org.eclipse.swt.widgets.Listener;
  44 import org.eclipse.swt.widgets.Menu;
  45 import org.eclipse.swt.widgets.MenuItem;
  46 import org.eclipse.swt.widgets.ProgressBar;
  47 import org.eclipse.swt.widgets.Shell;
  48 import org.eclipse.swt.widgets.ToolBar;
  49 import org.eclipse.swt.widgets.ToolItem;
  50 import org.eclipse.ui.PlatformUI;
  51
  52 public class WebBrowser extends Composite {
  53         protected Composite toolbarComp;
  54
  55         protected Composite statusComp;
  56
  57         protected Combo combo;
  58
  59         protected Clipboard clipboard;
  60
  61         protected boolean showToolbar;
  62
  63         protected ToolItem back;
  64
  65         protected ToolItem forward;
  66
  67         protected ToolItem stop;
  68
  69         protected ToolItem favorites;
  70
  71         protected ToolItem refresh;
  72
  73         protected BusyIndicator busy;
  74
  75         protected boolean showStatusbar;
  76
  77         protected ProgressBar progress;
  78
  79         protected Label status;
  80
  81         private static int MAX_HISTORY = 50;
  82
  83         protected static java.util.List history;
  84
  85         protected Browser browser;
  86
  87         protected Shell shell;
  88
  89         protected WebBrowserEditor editor;
  90
  91         protected String title;
  92
  93         public WebBrowser(Composite parent, final boolean showToolbar,
  94                         final boolean showStatusbar) {
  95                 super(parent, SWT.NONE);
  96
  97                 this.showToolbar = showToolbar;
  98                 this.showStatusbar = showStatusbar;
  99
 100                 GridLayout layout = new GridLayout();
 101                 layout.marginHeight = 3;
 102                 layout.marginWidth = 3;
 103                 layout.horizontalSpacing = 3;
 104                 layout.verticalSpacing = 3;
 105                 layout.numColumns = 1;
 106                 setLayout(layout);
 107                 setLayoutData(new GridData(GridData.FILL_BOTH));
 108                 clipboard = new Clipboard(parent.getDisplay());
 109                 PlatformUI.getWorkbench().getHelpSystem().setHelp(this,
 110                                 ContextIds.WEB_BROWSER);
 111
 112                 if (showToolbar) {
 113                         toolbarComp = new Composite(this, SWT.NONE);
 114                         GridLayout outerLayout = new GridLayout();
 115                         outerLayout.numColumns = 2;
 116                         outerLayout.marginWidth = 0;
 117                         outerLayout.marginHeight = 0;
 118                         toolbarComp.setLayout(outerLayout);
 119                         toolbarComp.setLayoutData(new GridData(
 120                                         GridData.VERTICAL_ALIGN_BEGINNING
 121                                                         | GridData.FILL_HORIZONTAL));
 122
 123                         // create the top line, with a combo box for history and a "go"
 124                         // button
 125                         Composite top = new Composite(toolbarComp, SWT.NONE);
 126                         GridLayout topLayout = new GridLayout();
 127                         topLayout.numColumns = 2;
 128                         topLayout.marginWidth = 0;
 129                         topLayout.marginHeight = 0;
 130                         top.setLayout(topLayout);
 131                         top.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_CENTER
 132                                         | GridData.FILL_HORIZONTAL));
 133
 134                         combo = new Combo(top, SWT.DROP_DOWN);
 135
 136                         updateHistory();
 137
 138                         combo.addSelectionListener(new SelectionAdapter() {
 139                                 public void widgetSelected(SelectionEvent we) {
 140                                         try {
 141                                                 if (combo.getSelectionIndex() != -1)
 142                                                         setURL(combo.getItem(combo.getSelectionIndex()));
 143                                         } catch (Exception e) {
 144                                         }
 145                                 }
 146                         });
 147                         combo.addListener(SWT.DefaultSelection, new Listener() {
 148                                 public void handleEvent(Event e) {
 149                                         setURL(combo.getText());
 150                                 }
 151                         });
 152                         combo.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 153                         PlatformUI.getWorkbench().getHelpSystem().setHelp(combo,
 154                                         ContextIds.WEB_BROWSER_URL);
 155
 156                         ToolBar toolbar = new ToolBar(top, SWT.FLAT);
 157                         fillToolBar(toolbar);
 158
 159                         new ToolItem(toolbar, SWT.SEPARATOR);
 160
 161                         busy = new BusyIndicator(toolbarComp, SWT.NONE);
 162                         busy.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_END));
 163                 }
 164
 165                 // create a new SWT Web browser widget, checking once again to make sure
 166                 // we can use it in this environment
 167                 // if (WebBrowserUtil.canUseInternalWebBrowser() &
 168                 // WebBrowserUtil.isInternalBrowserOperational())
 169                 if (WebBrowserUtil.isInternalBrowserOperational())
 170                         this.browser = new Browser(this, SWT.NONE);
 171                 else {
 172                         WebBrowserUtil.openError(WebBrowserUIPlugin
 173                                         .getResource("%errorCouldNotLaunchInternalWebBrowser"));
 174                         return;
 175                 }
 176
 177                 if (showToolbar) {
 178                         back.setEnabled(browser.isBackEnabled());
 179                         forward.setEnabled(browser.isForwardEnabled());
 180                 }
 181
 182                 PlatformUI.getWorkbench().getHelpSystem().setHelp(browser,
 183                                 ContextIds.WEB_BROWSER_WEB);
 184                 GridData data = new GridData();
 185                 data.horizontalAlignment = GridData.FILL;
 186                 data.verticalAlignment = GridData.FILL;
 187                 data.horizontalSpan = 3;
 188                 data.grabExcessHorizontalSpace = true;
 189                 data.grabExcessVerticalSpace = true;
 190                 browser.setLayoutData(data);
 191
 192                 if (showStatusbar)
 193                         createStatusArea(this);
 194
 195                 addBrowserListeners();
 196         }
 197
 198         /**
 199          *
 200          */
 201         protected void addBrowserListeners() {
 202                 if (showStatusbar) {
 203                         // respond to Browser StatusTextEvents events by updating the status
 204                         // Text label
 205                         browser.addStatusTextListener(new StatusTextListener() {
 206                                 public void changed(StatusTextEvent event) {
 207                                         status.setText(event.text);
 208                                 }
 209                         });
 210                 }
 211
 212                 /**
 213                  * Add listener for new window creation so that we can instead of
 214                  * opening a separate new window in which the session is lost, we can
 215                  * instead open a new window in a new shell within the browser area
 216                  * thereby maintaining the session.
 217                  */
 218                 browser.addOpenWindowListener(new OpenWindowListener() {
 219                         public void open(WindowEvent event) {
 220                                 Shell shell2 = new Shell(getDisplay());
 221                                 shell2.setLayout(new FillLayout());
 222                                 shell2.setText(WebBrowserUIPlugin
 223                                                 .getResource("%viewWebBrowserTitle"));
 224                                 shell2.setImage(getShell().getImage());
 225                                 WebBrowser browser2 = new WebBrowser(shell2, showToolbar,
 226                                                 showStatusbar);
 227                                 browser2.shell = shell2;
 228                                 event.browser = browser2.browser;
 229                                 shell2.open();
 230                         }
 231                 });
 232
 233                 browser.addCloseWindowListener(new CloseWindowListener() {
 234                         public void close(WindowEvent event) {
 235                                 // if shell is not null, it must be a secondary popup window,
 236                                 // else its an editor window
 237                                 if (shell != null)
 238                                         shell.dispose();
 239                                 else
 240                                         editor.closeEditor();
 241                         }
 242                 });
 243
 244                 browser.addProgressListener(new ProgressListener() {
 245                         public void changed(ProgressEvent event) {
 246                                 if (event.total == 0)
 247                                         return;
 248
 249                                 boolean done = (event.current == event.total);
 250
 251                                 int percentProgress = event.current * 100 / event.total;
 252                                 if (showStatusbar) {
 253                                         if (done)
 254                                                 progress.setSelection(0);
 255                                         else
 256                                                 progress.setSelection(percentProgress);
 257                                 }
 258
 259                                 if (showToolbar) {
 260                                         if (!busy.isBusy()
 261                                                         && (percentProgress > 0 && percentProgress < 100)) {
 262                                                 busy.setBusy(true);
 263                                         }
 264                                         // Once the progress hits 100 percent, done, set busy to
 265                                         // false
 266                                         else if (busy.isBusy() && done) {
 267                                                 busy.setBusy(false);
 268                                         }
 269                                 }
 270                         }
 271
 272                         public void completed(ProgressEvent event) {
 273                                 if (showStatusbar)
 274                                         progress.setSelection(0);
 275                                 if (showToolbar) {
 276                                         busy.setBusy(false);
 277                                         back.setEnabled(browser.isBackEnabled());
 278                                         forward.setEnabled(browser.isForwardEnabled());
 279                                 }
 280                         }
 281                 });
 282
 283                 if (showToolbar) {
 284                         browser.addLocationListener(new LocationListener() {
 285                                 public void changed(LocationEvent event) {
 286                                         if (!event.top)
 287                                                 return;
 288                                         if (!isHome()) {
 289                                                 combo.setText(event.location);
 290                                                 addToHistory(event.location);
 291                                                 updateHistory();
 292                                         } else
 293                                                 combo.setText("");
 294                                 }
 295
 296                                 public void changing(LocationEvent event) {
 297                                 }
 298                         });
 299                 }
 300
 301                 browser.addTitleListener(new TitleListener() {
 302                         public void changed(TitleEvent event) {
 303                                 title = event.title;
 304                         }
 305                 });
 306         }
 307
 308         /**
 309          * Return the underlying browser control.
 310          *
 311          * @return org.eclipse.swt.browser.Browser
 312          */
 313         public Browser getBrowser() {
 314                 return browser;
 315         }
 316
 317         /**
 318          *
 319          */
 320         protected void forward() {
 321                 browser.forward();
 322         }
 323
 324         /**
 325          *
 326          */
 327         protected void back() {
 328                 browser.back();
 329         }
 330
 331         /**
 332          *
 333          */
 334         protected void stop() {
 335                 browser.stop();
 336         }
 337
 338         /**
 339          *
 340          */
 341         protected void navigate(String url) {
 342                 Trace.trace(Trace.FINER, "Navigate: " + url);
 343                 if (url != null && url.equals(getURL())) {
 344                         refresh();
 345                         return;
 346                 }
 347                 browser.setUrl(url);
 348         }
 349
 350         /**
 351          * Refresh the currently viewed page.
 352          */
 353         public void refresh() {
 354                 browser.refresh();
 355         }
 356
 357         protected void setURL(String url, boolean browse) {
 358                 Trace.trace(Trace.FINEST, "setURL: " + url + " " + browse);
 359                 if (url == null) {
 360                         home();
 361                         return;
 362                 }
 363
 364                 if (url.endsWith(WebBrowserPreference.getHomePageURL().substring(9)))
 365                         return;
 366
 367                 // check URL maps
 368                 Iterator iterator = WebBrowserUtil.getURLMaps().iterator();
 369                 String newURL = null;
 370                 while (iterator.hasNext() && newURL == null) {
 371                         try {
 372                                 IURLMap map = (IURLMap) iterator.next();
 373                                 newURL = map.getMappedURL(url);
 374                         } catch (Exception e) {
 375                         }
 376                 }
 377                 if (newURL != null)
 378                         url = newURL;
 379
 380                 if (browse)
 381                         navigate(url);
 382
 383                 addToHistory(url);
 384                 updateHistory();
 385         }
 386
 387         protected void addToHistory(String url) {
 388                 if (history == null)
 389                         history = WebBrowserPreference.getInternalWebBrowserHistory();
 390                 int found = -1;
 391                 int size = history.size();
 392                 for (int i = 0; i < size; i++) {
 393                         String s = (String) history.get(i);
 394                         if (s.equals(url)) {
 395                                 found = i;
 396                                 break;
 397                         }
 398                 }
 399
 400                 if (found == -1) {
 401                         if (size >= MAX_HISTORY)
 402                                 history.remove(size - 1);
 403                         history.add(0, url);
 404                         WebBrowserPreference.setInternalWebBrowserHistory(history);
 405                 } else if (found != 0) {
 406                         history.remove(found);
 407                         history.add(0, url);
 408                         WebBrowserPreference.setInternalWebBrowserHistory(history);
 409                 }
 410         }
 411
 412         public void setURL(String url) {
 413                 setURL(url, true);
 414         }
 415
 416         /**
 417          * Creates the Web browser status area.
 418          */
 419         private void createStatusArea(Composite parent) {
 420                 Composite composite = new Composite(parent, SWT.NONE);
 421                 GridLayout layout = new GridLayout();
 422                 layout.numColumns = 2;
 423                 layout.marginHeight = 0;
 424                 layout.marginWidth = 0;
 425                 layout.horizontalSpacing = 4;
 426                 layout.verticalSpacing = 0;
 427                 composite.setLayout(layout);
 428                 composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 429
 430                 // Add a label for displaying status messages as they are received from
 431                 // the control
 432                 status = new Label(composite, SWT.SINGLE | SWT.READ_ONLY);
 433                 GridData gridData = new GridData(GridData.FILL_HORIZONTAL
 434                                 | GridData.VERTICAL_ALIGN_FILL);
 435                 gridData.horizontalIndent = 2;
 436                 status.setLayoutData(gridData);
 437
 438                 // Add a progress bar to display downloading progress information
 439                 progress = new ProgressBar(composite, SWT.BORDER);
 440                 gridData = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING
 441                                 | GridData.VERTICAL_ALIGN_FILL);
 442                 gridData.widthHint = 100;
 443                 gridData.heightHint = 10;
 444                 progress.setLayoutData(gridData);
 445         }
 446
 447         /**
 448          *
 449          */
 450         public void dispose() {
 451                 super.dispose();
 452
 453                 showStatusbar = false;
 454                 showToolbar = false;
 455
 456                 if (busy != null)
 457                         busy.dispose();
 458                 busy = null;
 459
 460                 browser = null;
 461         }
 462
 463         /**
 464          * Populate the toolbar.
 465          *
 466          * @param toolbar
 467          *            org.eclipse.swt.widgets.ToolBar
 468          */
 469         private void fillToolBar(final ToolBar toolbar) {
 470                 ToolItem go = new ToolItem(toolbar, SWT.NONE);
 471                 go.setImage(ImageResource.getImage(ImageResource.IMG_ELCL_NAV_GO));
 472                 go.setHotImage(ImageResource.getImage(ImageResource.IMG_CLCL_NAV_GO));
 473                 go.setDisabledImage(ImageResource
 474                                 .getImage(ImageResource.IMG_DLCL_NAV_GO));
 475                 go
 476                                 .setToolTipText(WebBrowserUIPlugin
 477                                                 .getResource("%actionWebBrowserGo"));
 478                 go.addSelectionListener(new SelectionAdapter() {
 479                         public void widgetSelected(SelectionEvent event) {
 480                                 setURL(combo.getText());
 481                         }
 482                 });
 483
 484                 new ToolItem(toolbar, SWT.SEPARATOR);
 485
 486                 favorites = new ToolItem(toolbar, SWT.DROP_DOWN);
 487                 favorites.setImage(ImageResource
 488                                 .getImage(ImageResource.IMG_ELCL_NAV_FAVORITES));
 489                 favorites.setHotImage(ImageResource
 490                                 .getImage(ImageResource.IMG_CLCL_NAV_FAVORITES));
 491                 favorites.setDisabledImage(ImageResource
 492                                 .getImage(ImageResource.IMG_DLCL_NAV_FAVORITES));
 493                 favorites.setToolTipText(WebBrowserUIPlugin
 494                                 .getResource("%actionWebBrowserFavorites"));
 495
 496                 favorites.addSelectionListener(new SelectionAdapter() {
 497                         public void widgetSelected(SelectionEvent event) {
 498                                 if (event.detail == SWT.ARROW) {
 499                                         Rectangle r = favorites.getBounds();
 500                                         showFavorites(toolbar, toolbar.toDisplay(r.x, r.y
 501                                                         + r.height));
 502                                 } else
 503                                         addFavorite();
 504                         }
 505                 });
 506
 507                 // create back and forward actions
 508                 back = new ToolItem(toolbar, SWT.NONE);
 509                 back.setImage(ImageResource
 510                                 .getImage(ImageResource.IMG_ELCL_NAV_BACKWARD));
 511                 back.setHotImage(ImageResource
 512                                 .getImage(ImageResource.IMG_CLCL_NAV_BACKWARD));
 513                 back.setDisabledImage(ImageResource
 514                                 .getImage(ImageResource.IMG_DLCL_NAV_BACKWARD));
 515                 back.setToolTipText(WebBrowserUIPlugin
 516                                 .getResource("%actionWebBrowserBack"));
 517                 back.addSelectionListener(new SelectionAdapter() {
 518                         public void widgetSelected(SelectionEvent event) {
 519                                 back();
 520                         }
 521                 });
 522
 523                 forward = new ToolItem(toolbar, SWT.NONE);
 524                 forward.setImage(ImageResource
 525                                 .getImage(ImageResource.IMG_ELCL_NAV_FORWARD));
 526                 forward.setHotImage(ImageResource
 527                                 .getImage(ImageResource.IMG_CLCL_NAV_FORWARD));
 528                 forward.setDisabledImage(ImageResource
 529                                 .getImage(ImageResource.IMG_DLCL_NAV_FORWARD));
 530                 forward.setToolTipText(WebBrowserUIPlugin
 531                                 .getResource("%actionWebBrowserForward"));
 532                 forward.addSelectionListener(new SelectionAdapter() {
 533                         public void widgetSelected(SelectionEvent event) {
 534                                 forward();
 535                         }
 536                 });
 537
 538                 // create refresh, stop, and print actions
 539                 stop = new ToolItem(toolbar, SWT.NONE);
 540                 stop.setImage(ImageResource.getImage(ImageResource.IMG_ELCL_NAV_STOP));
 541                 stop.setHotImage(ImageResource
 542                                 .getImage(ImageResource.IMG_CLCL_NAV_STOP));
 543                 stop.setDisabledImage(ImageResource
 544                                 .getImage(ImageResource.IMG_DLCL_NAV_STOP));
 545                 stop.setToolTipText(WebBrowserUIPlugin
 546                                 .getResource("%actionWebBrowserStop"));
 547                 stop.addSelectionListener(new SelectionAdapter() {
 548                         public void widgetSelected(SelectionEvent event) {
 549                                 stop();
 550                         }
 551                 });
 552
 553                 refresh = new ToolItem(toolbar, SWT.NONE);
 554                 refresh.setImage(ImageResource
 555                                 .getImage(ImageResource.IMG_ELCL_NAV_REFRESH));
 556                 refresh.setHotImage(ImageResource
 557                                 .getImage(ImageResource.IMG_CLCL_NAV_REFRESH));
 558                 refresh.setDisabledImage(ImageResource
 559                                 .getImage(ImageResource.IMG_DLCL_NAV_REFRESH));
 560                 refresh.setToolTipText(WebBrowserUIPlugin
 561                                 .getResource("%actionWebBrowserRefresh"));
 562                 refresh.addSelectionListener(new SelectionAdapter() {
 563                         public void widgetSelected(SelectionEvent event) {
 564                                 refresh();
 565                         }
 566                 });
 567         }
 568
 569         protected void addFavorite() {
 570                 java.util.List list = WebBrowserPreference
 571                                 .getInternalWebBrowserFavorites();
 572                 Favorite f = new Favorite(title, browser.getUrl());
 573                 if (!list.contains(f)) {
 574                         list.add(f);
 575                         WebBrowserPreference.setInternalWebBrowserFavorites(list);
 576                 }
 577         }
 578
 579         protected void showFavorites(Control parent, Point p) {
 580                 Menu perspectiveBarMenu = null;
 581                 if (perspectiveBarMenu == null) {
 582                         Menu menu = new Menu(parent);
 583
 584                         // locked favorites
 585                         Iterator iterator = WebBrowserUtil.getLockedFavorites().iterator();
 586                         if (iterator.hasNext()) {
 587                                 while (iterator.hasNext()) {
 588                                         final Favorite f = (Favorite) iterator.next();
 589                                         MenuItem item = new MenuItem(menu, SWT.NONE);
 590                                         item.setText(f.getName());
 591                                         item.setImage(ImageResource
 592                                                         .getImage(ImageResource.IMG_FAVORITE));
 593                                         item.addSelectionListener(new SelectionAdapter() {
 594                                                 public void widgetSelected(SelectionEvent event) {
 595                                                         setURL(f.getURL());
 596                                                 }
 597                                         });
 598                                 }
 599
 600                                 new MenuItem(menu, SWT.SEPARATOR);
 601                         }
 602
 603                         iterator = WebBrowserPreference.getInternalWebBrowserFavorites()
 604                                         .iterator();
 605                         if (!iterator.hasNext()) {
 606                                 MenuItem item = new MenuItem(menu, SWT.NONE);
 607                                 item.setText(WebBrowserUIPlugin
 608                                                 .getResource("%actionWebBrowserNoFavorites"));
 609                         }
 610                         while (iterator.hasNext()) {
 611                                 final Favorite f = (Favorite) iterator.next();
 612                                 MenuItem item = new MenuItem(menu, SWT.NONE);
 613                                 item.setText(f.getName());
 614                                 item.setImage(ImageResource
 615                                                 .getImage(ImageResource.IMG_FAVORITE));
 616                                 item.addSelectionListener(new SelectionAdapter() {
 617                                         public void widgetSelected(SelectionEvent event) {
 618                                                 setURL(f.getURL());
 619                                         }
 620                                 });
 621                         }
 622
 623                         new MenuItem(menu, SWT.SEPARATOR);
 624
 625                         MenuItem item = new MenuItem(menu, SWT.NONE);
 626                         item.setText(WebBrowserUIPlugin
 627                                         .getResource("%actionWebBrowserOrganizeFavorites"));
 628                         item.addSelectionListener(new SelectionAdapter() {
 629                                 public void widgetSelected(SelectionEvent event) {
 630                                         OrganizeFavoritesDialog dialog = new OrganizeFavoritesDialog(
 631                                                         shell);
 632                                         dialog.open();
 633                                 }
 634                         });
 635
 636                         perspectiveBarMenu = menu;
 637                 }
 638
 639                 if (perspectiveBarMenu != null) {
 640                         perspectiveBarMenu.setLocation(p.x, p.y);
 641                         perspectiveBarMenu.setVisible(true);
 642                 }
 643         }
 644
 645         public void home() {
 646                 navigate(WebBrowserPreference.getHomePageURL());
 647         }
 648
 649         /**
 650          * Returns true if the homepage is currently being displayed.
 651          *
 652          * @return boolean
 653          */
 654         protected boolean isHome() {
 655                 return getURL() != null
 656                                 && getURL().endsWith(
 657                                                 WebBrowserPreference.getHomePageURL().substring(9));
 658         }
 659
 660         protected String getURL() {
 661                 return browser.getUrl();
 662         }
 663
 664         /**
 665          * Update the history list to the global copy.
 666          */
 667         protected void updateHistory() {
 668                 if (combo == null)
 669                         return;
 670
 671                 String temp = combo.getText();
 672                 if (history == null)
 673                         history = WebBrowserPreference.getInternalWebBrowserHistory();
 674
 675                 String[] historyList = new String[history.size()];
 676                 history.toArray(historyList);
 677                 combo.setItems(historyList);
 678
 679                 combo.setText(temp);
 680         }
 681
 682         public void addProgressListener(ProgressListener listener) {
 683                 browser.addProgressListener(listener);
 684         }
 685
 686         public void addStatusTextListener(StatusTextListener listener) {
 687                 browser.addStatusTextListener(listener);
 688         }
 689
 690         public void addTitleListener(TitleListener listener) {
 691                 browser.addTitleListener(listener);
 692         }
 693 }