net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/JavaOutlinePage.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2004 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package net.sourceforge.phpeclipse.phpeditor;
  12
  13
  14 import java.util.Enumeration;
  15 import java.util.Hashtable;
  16 import java.util.List;
  17 import java.util.Vector;
  18
  19 import net.sourceforge.phpdt.core.ElementChangedEvent;
  20 import net.sourceforge.phpdt.core.ICompilationUnit;
  21 import net.sourceforge.phpdt.core.IElementChangedListener;
  22 import net.sourceforge.phpdt.core.IField;
  23 import net.sourceforge.phpdt.core.IJavaElement;
  24 import net.sourceforge.phpdt.core.IJavaElementDelta;
  25 import net.sourceforge.phpdt.core.IMember;
  26 import net.sourceforge.phpdt.core.IMethod;
  27 import net.sourceforge.phpdt.core.IParent;
  28 import net.sourceforge.phpdt.core.ISourceRange;
  29 import net.sourceforge.phpdt.core.ISourceReference;
  30 import net.sourceforge.phpdt.core.IType;
  31 import net.sourceforge.phpdt.core.JavaCore;
  32 import net.sourceforge.phpdt.core.JavaModelException;
  33 import net.sourceforge.phpdt.internal.corext.util.JavaModelUtil;
  34 import net.sourceforge.phpdt.internal.ui.IJavaHelpContextIds;
  35 import net.sourceforge.phpdt.internal.ui.PHPUiImages;
  36 import net.sourceforge.phpdt.internal.ui.actions.AbstractToggleLinkingAction;
  37 import net.sourceforge.phpdt.internal.ui.actions.CompositeActionGroup;
  38 import net.sourceforge.phpdt.internal.ui.preferences.MembersOrderPreferenceCache;
  39 import net.sourceforge.phpdt.internal.ui.viewsupport.AppearanceAwareLabelProvider;
  40 import net.sourceforge.phpdt.internal.ui.viewsupport.DecoratingJavaLabelProvider;
  41 import net.sourceforge.phpdt.internal.ui.viewsupport.JavaElementLabels;
  42 import net.sourceforge.phpdt.internal.ui.viewsupport.StatusBarUpdater;
  43 import net.sourceforge.phpdt.ui.JavaElementSorter;
  44 import net.sourceforge.phpdt.ui.JavaUI;
  45 import net.sourceforge.phpdt.ui.PreferenceConstants;
  46 import net.sourceforge.phpdt.ui.ProblemsLabelDecorator.ProblemsLabelChangedEvent;
  47 import net.sourceforge.phpdt.ui.actions.CustomFiltersActionGroup;
  48 import net.sourceforge.phpdt.ui.actions.GenerateActionGroup;
  49 import net.sourceforge.phpdt.ui.actions.MemberFilterActionGroup;
  50 import net.sourceforge.phpdt.ui.actions.PHPdtActionConstants;
  51 import net.sourceforge.phpeclipse.PHPeclipsePlugin;
  52
  53 import org.eclipse.core.resources.IResource;
  54 import org.eclipse.core.runtime.IAdaptable;
  55 import org.eclipse.jface.action.Action;
  56 import org.eclipse.jface.action.IAction;
  57 import org.eclipse.jface.action.IMenuListener;
  58 import org.eclipse.jface.action.IMenuManager;
  59 import org.eclipse.jface.action.IStatusLineManager;
  60 import org.eclipse.jface.action.IToolBarManager;
  61 import org.eclipse.jface.action.MenuManager;
  62 import org.eclipse.jface.action.Separator;
  63 import org.eclipse.jface.preference.IPreferenceStore;
  64 import org.eclipse.jface.text.Assert;
  65 import org.eclipse.jface.text.ITextSelection;
  66 import org.eclipse.jface.util.IPropertyChangeListener;
  67 import org.eclipse.jface.util.ListenerList;
  68 import org.eclipse.jface.util.PropertyChangeEvent;
  69 import org.eclipse.jface.viewers.IBaseLabelProvider;
  70 import org.eclipse.jface.viewers.IPostSelectionProvider;
  71 import org.eclipse.jface.viewers.ISelection;
  72 import org.eclipse.jface.viewers.ISelectionChangedListener;
  73 import org.eclipse.jface.viewers.IStructuredSelection;
  74 import org.eclipse.jface.viewers.ITreeContentProvider;
  75 import org.eclipse.jface.viewers.LabelProviderChangedEvent;
  76 import org.eclipse.jface.viewers.SelectionChangedEvent;
  77 import org.eclipse.jface.viewers.StructuredSelection;
  78 import org.eclipse.jface.viewers.TreeViewer;
  79 import org.eclipse.jface.viewers.Viewer;
  80 import org.eclipse.jface.viewers.ViewerFilter;
  81 import org.eclipse.swt.SWT;
  82 import org.eclipse.swt.custom.BusyIndicator;
  83 import org.eclipse.swt.dnd.DND;
  84 import org.eclipse.swt.dnd.Transfer;
  85 import org.eclipse.swt.widgets.Composite;
  86 import org.eclipse.swt.widgets.Control;
  87 import org.eclipse.swt.widgets.Display;
  88 import org.eclipse.swt.widgets.Item;
  89 import org.eclipse.swt.widgets.Menu;
  90 import org.eclipse.swt.widgets.Tree;
  91 import org.eclipse.swt.widgets.Widget;
  92 import org.eclipse.ui.IActionBars;
  93 import org.eclipse.ui.actions.ActionContext;
  94 import org.eclipse.ui.actions.ActionGroup;
  95 import org.eclipse.ui.help.WorkbenchHelp;
  96 import org.eclipse.ui.model.IWorkbenchAdapter;
  97 import org.eclipse.ui.model.WorkbenchAdapter;
  98 import org.eclipse.ui.part.IPageSite;
  99 import org.eclipse.ui.part.IShowInSource;
 100 import org.eclipse.ui.part.IShowInTarget;
 101 import org.eclipse.ui.part.IShowInTargetList;
 102 import org.eclipse.ui.part.Page;
 103 import org.eclipse.ui.part.ShowInContext;
 104 import org.eclipse.ui.texteditor.ITextEditorActionConstants;
 105 import org.eclipse.ui.texteditor.ITextEditorActionDefinitionIds;
 106 import org.eclipse.ui.texteditor.IUpdate;
 107 import org.eclipse.ui.texteditor.TextEditorAction;
 108 import org.eclipse.ui.texteditor.TextOperationAction;
 109 import org.eclipse.ui.views.contentoutline.IContentOutlinePage;
 110 import org.eclipse.ui.views.navigator.LocalSelectionTransfer;
 111
 112
 113 /**
 114  * The content outline page of the Java editor. The viewer implements a proprietary
 115  * update mechanism based on Java model deltas. It does not react on domain changes.
 116  * It is specified to show the content of ICompilationUnits and IClassFiles.
 117  * Publishes its context menu under <code>PHPeclipsePlugin.getDefault().getPluginId() + ".outline"</code>.
 118  */
 119 public class JavaOutlinePage extends Page implements IContentOutlinePage, IAdaptable , IPostSelectionProvider {
 120
 121                         static Object[] NO_CHILDREN= new Object[0];
 122
 123                         /**
 124                          * The element change listener of the java outline viewer.
 125                          * @see IElementChangedListener
 126                          */
 127                         class ElementChangedListener implements IElementChangedListener {
 128
 129                                 public void elementChanged(final ElementChangedEvent e) {
 130
 131                                         if (getControl() == null)
 132                                                 return;
 133
 134                                         Display d= getControl().getDisplay();
 135                                         if (d != null) {
 136                                                 d.asyncExec(new Runnable() {
 137                                                         public void run() {
 138                                                                 ICompilationUnit cu= (ICompilationUnit) fInput;
 139                                                                 IJavaElement base= cu;
 140 //                                                              if (fTopLevelTypeOnly) {
 141 //                                                                      base= getMainType(cu);
 142 //                                                                      if (base == null) {
 143                                                                                 if (fOutlineViewer != null)
 144                                                                                         fOutlineViewer.refresh(true);
 145                                                                                 return;
 146 //                                                                      }
 147 //                                                              }
 148 //                                                              IJavaElementDelta delta= findElement(base, e.getDelta());
 149 //                                                              if (delta != null && fOutlineViewer != null) {
 150 //                                                                      fOutlineViewer.reconcile(delta);
 151 //                                                              }
 152                                                         }
 153                                                 });
 154                                         }
 155                                 }
 156
 157                                 private boolean isPossibleStructuralChange(IJavaElementDelta cuDelta) {
 158                                         if (cuDelta.getKind() != IJavaElementDelta.CHANGED) {
 159                                                 return true; // add or remove
 160                                         }
 161                                         int flags= cuDelta.getFlags();
 162                                         if ((flags & IJavaElementDelta.F_CHILDREN) != 0) {
 163                                                 return true;
 164                                         }
 165                                         return (flags & (IJavaElementDelta.F_CONTENT | IJavaElementDelta.F_FINE_GRAINED)) == IJavaElementDelta.F_CONTENT;
 166                                 }
 167
 168                                 protected IJavaElementDelta findElement(IJavaElement unit, IJavaElementDelta delta) {
 169
 170                                         if (delta == null || unit == null)
 171                                                 return null;
 172
 173                                         IJavaElement element= delta.getElement();
 174
 175                                         if (unit.equals(element)) {
 176                                                 if (isPossibleStructuralChange(delta)) {
 177                                                         return delta;
 178                                                 }
 179                                                 return null;
 180                                         }
 181
 182
 183                                         if (element.getElementType() > IJavaElement.CLASS_FILE)
 184                                                 return null;
 185
 186                                         IJavaElementDelta[] children= delta.getAffectedChildren();
 187                                         if (children == null || children.length == 0)
 188                                                 return null;
 189
 190                                         for (int i= 0; i < children.length; i++) {
 191                                                 IJavaElementDelta d= findElement(unit, children[i]);
 192                                                 if (d != null)
 193                                                         return d;
 194                                         }
 195
 196                                         return null;
 197                                 }
 198                         }
 199
 200                         static class NoClassElement extends WorkbenchAdapter implements IAdaptable {
 201                                 /*
 202                                  * @see java.lang.Object#toString()
 203                                  */
 204                                 public String toString() {
 205                                         return PHPEditorMessages.getString("JavaOutlinePage.error.NoTopLevelType"); //$NON-NLS-1$
 206                                 }
 207
 208                                 /*
 209                                  * @see org.eclipse.core.runtime.IAdaptable#getAdapter(Class)
 210                                  */
 211                                 public Object getAdapter(Class clas) {
 212                                         if (clas == IWorkbenchAdapter.class)
 213                                                 return this;
 214                                         return null;
 215                                 }
 216                         }
 217
 218                         /**
 219                          * Content provider for the children of an ICompilationUnit or
 220                          * an IClassFile
 221                          * @see ITreeContentProvider
 222                          */
 223                         class ChildrenProvider implements ITreeContentProvider {
 224
 225                                 private Object[] NO_CLASS= new Object[] {new NoClassElement()};
 226                                 private ElementChangedListener fListener;
 227
 228                                 protected boolean matches(IJavaElement element) {
 229                                         if (element.getElementType() == IJavaElement.METHOD) {
 230                                                 String name= element.getElementName();
 231                                                 return (name != null && name.indexOf('<') >= 0);
 232                                         }
 233                                         return false;
 234                                 }
 235
 236                                 protected IJavaElement[] filter(IJavaElement[] children) {
 237                                         boolean initializers= false;
 238                                         for (int i= 0; i < children.length; i++) {
 239                                                 if (matches(children[i])) {
 240                                                         initializers= true;
 241                                                         break;
 242                                                 }
 243                                         }
 244
 245                                         if (!initializers)
 246                                                 return children;
 247
 248                                         Vector v= new Vector();
 249                                         for (int i= 0; i < children.length; i++) {
 250                                                 if (matches(children[i]))
 251                                                         continue;
 252                                                 v.addElement(children[i]);
 253                                         }
 254
 255                                         IJavaElement[] result= new IJavaElement[v.size()];
 256                                         v.copyInto(result);
 257                                         return result;
 258                                 }
 259
 260                                 public Object[] getChildren(Object parent) {
 261                                         if (parent instanceof IParent) {
 262                                                 IParent c= (IParent) parent;
 263                                                 try {
 264                                                         return filter(c.getChildren());
 265                                                 } catch (JavaModelException x) {
 266                                                         // https://bugs.eclipse.org/bugs/show_bug.cgi?id=38341
 267                                                         // don't log NotExist exceptions as this is a valid case
 268                                                         // since we might have been posted and the element
 269                                                         // removed in the meantime.
 270                                                         if (PHPeclipsePlugin.isDebug() || !x.isDoesNotExist())
 271                                                                 PHPeclipsePlugin.log(x);
 272                                                 }
 273                                         }
 274                                         return NO_CHILDREN;
 275                                 }
 276
 277                                 public Object[] getElements(Object parent) {
 278                                         if (fTopLevelTypeOnly) {
 279                                                 if (parent instanceof ICompilationUnit) {
 280                                                         try {
 281                                                                 IType type= getMainType((ICompilationUnit) parent);
 282                                                                 return type != null ? type.getChildren() : NO_CLASS;
 283                                                         } catch (JavaModelException e) {
 284                                                                 PHPeclipsePlugin.log(e);
 285                                                         }
 286                                                 }
 287 //                                              else if (parent instanceof IClassFile) {
 288 //                                                      try {
 289 //                                                              IType type= getMainType((IClassFile) parent);
 290 //                                                              return type != null ? type.getChildren() : NO_CLASS;
 291 //                                                      } catch (JavaModelException e) {
 292 //                                                              PHPeclipsePlugin.log(e);
 293 //                                                      }
 294 //                                              }
 295                                         }
 296                                         return getChildren(parent);
 297                                 }
 298
 299                                 public Object getParent(Object child) {
 300                                         if (child instanceof IJavaElement) {
 301                                                 IJavaElement e= (IJavaElement) child;
 302                                                 return e.getParent();
 303                                         }
 304                                         return null;
 305                                 }
 306
 307                                 public boolean hasChildren(Object parent) {
 308                                         if (parent instanceof IParent) {
 309                                                 IParent c= (IParent) parent;
 310                                                 try {
 311                                                         IJavaElement[] children= filter(c.getChildren());
 312                                                         return (children != null && children.length > 0);
 313                                                 } catch (JavaModelException x) {
 314                                                         // https://bugs.eclipse.org/bugs/show_bug.cgi?id=38341
 315                                                         // don't log NotExist exceptions as this is a valid case
 316                                                         // since we might have been posted and the element
 317                                                         // removed in the meantime.
 318                                                         if (PHPeclipsePlugin.isDebug() || !x.isDoesNotExist())
 319                                                                 PHPeclipsePlugin.log(x);
 320                                                 }
 321                                         }
 322                                         return false;
 323                                 }
 324
 325                                 public boolean isDeleted(Object o) {
 326                                         return false;
 327                                 }
 328
 329                                 public void dispose() {
 330                                         if (fListener != null) {
 331                                                 JavaCore.removeElementChangedListener(fListener);
 332                                                 fListener= null;
 333                                         }
 334                                 }
 335
 336                                 /*
 337                                  * @see IContentProvider#inputChanged(Viewer, Object, Object)
 338                                  */
 339                                 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 340                                         boolean isCU= (newInput instanceof ICompilationUnit);
 341
 342                                         if (isCU && fListener == null) {
 343                                                 fListener= new ElementChangedListener();
 344                                                 JavaCore.addElementChangedListener(fListener);
 345                                         } else if (!isCU && fListener != null) {
 346                                                 JavaCore.removeElementChangedListener(fListener);
 347                                                 fListener= null;
 348                                         }
 349                                 }
 350                         }
 351
 352
 353                         class JavaOutlineViewer extends TreeViewer {
 354
 355                                 /**
 356                                  * Indicates an item which has been reused. At the point of
 357                                  * its reuse it has been expanded. This field is used to
 358                                  * communicate between <code>internalExpandToLevel</code> and
 359                                  * <code>reuseTreeItem</code>.
 360                                  */
 361                                 private Item fReusedExpandedItem;
 362                                 private boolean fReorderedMembers;
 363                                 private boolean fForceFireSelectionChanged;
 364
 365                                 public JavaOutlineViewer(Tree tree) {
 366                                         super(tree);
 367                                         setAutoExpandLevel(ALL_LEVELS);
 368                                         setUseHashlookup(true);
 369                                 }
 370
 371                                 /**
 372                                  * Investigates the given element change event and if affected
 373                                  * incrementally updates the Java outline.
 374                                  *
 375                                  * @param delta the Java element delta used to reconcile the Java outline
 376                                  */
 377                                 public void reconcile(IJavaElementDelta delta) {
 378                                         fReorderedMembers= false;
 379                                         fForceFireSelectionChanged= false;
 380                                         if (getSorter() == null) {
 381                                                 if (fTopLevelTypeOnly
 382                                                         && delta.getElement() instanceof IType
 383                                                         && (delta.getKind() & IJavaElementDelta.ADDED) != 0)
 384                                                 {
 385                                                         refresh(true);
 386
 387                                                 } else {
 388                                                         Widget w= findItem(fInput);
 389                                                         if (w != null && !w.isDisposed())
 390                                                                 update(w, delta);
 391                                                         if (fForceFireSelectionChanged)
 392                                                                 fireSelectionChanged(new SelectionChangedEvent(getSite().getSelectionProvider(), this.getSelection()));
 393                                                         if (fReorderedMembers) {
 394                                                                 refresh(false);
 395                                                                 fReorderedMembers= false;
 396                                                 }
 397                                                 }
 398                                         } else {
 399                                                 // just for now
 400                                                 refresh(true);
 401                                         }
 402                                 }
 403
 404                                 /*
 405                                  * @see TreeViewer#internalExpandToLevel
 406                                  */
 407                                 protected void internalExpandToLevel(Widget node, int level) {
 408                                         if (node instanceof Item) {
 409                                                 Item i= (Item) node;
 410                                                 if (i.getData() instanceof IJavaElement) {
 411                                                         IJavaElement je= (IJavaElement) i.getData();
 412                                                         if (je.getElementType() == IJavaElement.IMPORT_CONTAINER || isInnerType(je)) {
 413                                                                 if (i != fReusedExpandedItem) {
 414                                                                         setExpanded(i, false);
 415                                                                         return;
 416                                                                 }
 417                                                         }
 418                                                 }
 419                                         }
 420                                         super.internalExpandToLevel(node, level);
 421                                 }
 422
 423                                 protected void reuseTreeItem(Item item, Object element) {
 424
 425                                         // remove children
 426                                         Item[] c= getChildren(item);
 427                                         if (c != null && c.length > 0) {
 428
 429                                                 if (getExpanded(item))
 430                                                         fReusedExpandedItem= item;
 431
 432                                                 for (int k= 0; k < c.length; k++) {
 433                                                         if (c[k].getData() != null)
 434                                                                 disassociate(c[k]);
 435                                                         c[k].dispose();
 436                                                 }
 437                                         }
 438
 439                                         updateItem(item, element);
 440                                         updatePlus(item, element);
 441                                         internalExpandToLevel(item, ALL_LEVELS);
 442
 443                                         fReusedExpandedItem= null;
 444                                         fForceFireSelectionChanged= true;
 445                                 }
 446
 447                                 protected boolean mustUpdateParent(IJavaElementDelta delta, IJavaElement element) {
 448                                         if (element instanceof IMethod) {
 449                                                 if ((delta.getKind() & IJavaElementDelta.ADDED) != 0) {
 450                                                         try {
 451                                                                 return ((IMethod)element).isMainMethod();
 452                                                         } catch (JavaModelException e) {
 453                                                                 PHPeclipsePlugin.log(e.getStatus());
 454                                                         }
 455                                                 }
 456                                                 return "main".equals(element.getElementName()); //$NON-NLS-1$
 457                                         }
 458                                         return false;
 459                                 }
 460
 461                                 /*
 462                                  * @see org.eclipse.jface.viewers.AbstractTreeViewer#isExpandable(java.lang.Object)
 463                                  */
 464                                 public boolean isExpandable(Object element) {
 465                                         if (hasFilters()) {
 466                                                 return getFilteredChildren(element).length > 0;
 467                                         }
 468                                         return super.isExpandable(element);
 469                                 }
 470
 471                                 protected ISourceRange getSourceRange(IJavaElement element) throws JavaModelException {
 472                                         if (element instanceof ISourceReference)
 473                                                 return ((ISourceReference) element).getSourceRange();
 474                                         if (element instanceof IMember)// && !(element instanceof IInitializer))
 475                                                 return ((IMember) element).getNameRange();
 476                                         return null;
 477                                 }
 478
 479                                 protected boolean overlaps(ISourceRange range, int start, int end) {
 480                                         return start <= (range.getOffset() + range.getLength() - 1) && range.getOffset() <= end;
 481                                 }
 482
 483                                 protected boolean filtered(IJavaElement parent, IJavaElement child) {
 484
 485                                         Object[] result= new Object[] { child };
 486                                         ViewerFilter[] filters= getFilters();
 487                                         for (int i= 0; i < filters.length; i++) {
 488                                                 result= filters[i].filter(this, parent, result);
 489                                                 if (result.length == 0)
 490                                                         return true;
 491                                         }
 492
 493                                         return false;
 494                                 }
 495
 496                                 protected void update(Widget w, IJavaElementDelta delta) {
 497
 498                                         Item item;
 499
 500                                         IJavaElement parent= delta.getElement();
 501                                         IJavaElementDelta[] affected= delta.getAffectedChildren();
 502                                         Item[] children= getChildren(w);
 503
 504                                         boolean doUpdateParent= false;
 505                                         boolean doUpdateParentsPlus= false;
 506
 507                                         Vector deletions= new Vector();
 508                                         Vector additions= new Vector();
 509
 510                                         for (int i= 0; i < affected.length; i++) {
 511                                             IJavaElementDelta affectedDelta= affected[i];
 512                                                 IJavaElement affectedElement= affectedDelta.getElement();
 513                                                 int status= affected[i].getKind();
 514
 515                                                 // find tree item with affected element
 516                                                 int j;
 517                                                 for (j= 0; j < children.length; j++)
 518                                                     if (affectedElement.equals(children[j].getData()))
 519                                                         break;
 520
 521                                                 if (j == children.length) {
 522                                                         // remove from collapsed parent
 523                                                         if ((status & IJavaElementDelta.REMOVED) != 0) {
 524                                                                 doUpdateParentsPlus= true;
 525                                                                 continue;
 526                                                         }
 527                                                         // addition
 528                                                         if ((status & IJavaElementDelta.CHANGED) != 0 &&
 529                                                                 (affectedDelta.getFlags() & IJavaElementDelta.F_MODIFIERS) != 0 &&
 530                                                                 !filtered(parent, affectedElement))
 531                                                         {
 532                                                                 additions.addElement(affectedDelta);
 533                                                         }
 534                                                         continue;
 535                                                 }
 536
 537                                                 item= children[j];
 538
 539                                                 // removed
 540                                                 if ((status & IJavaElementDelta.REMOVED) != 0) {
 541                                                         deletions.addElement(item);
 542                                                         doUpdateParent= doUpdateParent || mustUpdateParent(affectedDelta, affectedElement);
 543
 544                                                 // changed
 545                                                 } else if ((status & IJavaElementDelta.CHANGED) != 0) {
 546                                                         int change= affectedDelta.getFlags();
 547                                                         doUpdateParent= doUpdateParent || mustUpdateParent(affectedDelta, affectedElement);
 548
 549                                                         if ((change & IJavaElementDelta.F_MODIFIERS) != 0) {
 550                                                                 if (filtered(parent, affectedElement))
 551                                                                         deletions.addElement(item);
 552                                                                 else
 553                                                                         updateItem(item, affectedElement);
 554                                                         }
 555
 556                                                         if ((change & IJavaElementDelta.F_CONTENT) != 0)
 557                                                                 updateItem(item, affectedElement);
 558
 559                                                         if ((change & IJavaElementDelta.F_CHILDREN) != 0)
 560                                                                 update(item, affectedDelta);
 561
 562                                                         if ((change & IJavaElementDelta.F_REORDER) != 0)
 563                                                                 fReorderedMembers= true;
 564                                                 }
 565                                         }
 566
 567                                         // find all elements to add
 568                                         IJavaElementDelta[] add= delta.getAddedChildren();
 569                                         if (additions.size() > 0) {
 570                                                 IJavaElementDelta[] tmp= new IJavaElementDelta[add.length + additions.size()];
 571                                                 System.arraycopy(add, 0, tmp, 0, add.length);
 572                                                 for (int i= 0; i < additions.size(); i++)
 573                                                         tmp[i + add.length]= (IJavaElementDelta) additions.elementAt(i);
 574                                                 add= tmp;
 575                                         }
 576
 577                                         // add at the right position
 578                                         go2: for (int i= 0; i < add.length; i++) {
 579
 580                                                 try {
 581
 582                                                         IJavaElement e= add[i].getElement();
 583                                                         if (filtered(parent, e))
 584                                                                 continue go2;
 585
 586                                                         doUpdateParent= doUpdateParent || mustUpdateParent(add[i], e);
 587                                                         ISourceRange rng= getSourceRange(e);
 588                                                         int start= rng.getOffset();
 589                                                         int end= start + rng.getLength() - 1;
 590                                                         int nameOffset= Integer.MAX_VALUE;
 591                                                         if (e instanceof IField) {
 592                                                                 ISourceRange nameRange= ((IField) e).getNameRange();
 593                                                                 if (nameRange != null)
 594                                                                         nameOffset= nameRange.getOffset();
 595                                                         }
 596
 597                                                         Item last= null;
 598                                                         item= null;
 599                                                         children= getChildren(w);
 600
 601                                                         for (int j= 0; j < children.length; j++) {
 602                                                                 item= children[j];
 603                                                                 IJavaElement r= (IJavaElement) item.getData();
 604
 605                                                                 if (r == null) {
 606                                                                         // parent node collapsed and not be opened before -> do nothing
 607                                                                         continue go2;
 608                                                                 }
 609
 610
 611                                                                 try {
 612                                                                         rng= getSourceRange(r);
 613
 614                                                                         // multi-field declarations always start at
 615                                                                         // the same offset. They also have the same
 616                                                                         // end offset if the field sequence is terminated
 617                                                                         // with a semicolon. If not, the source range
 618                                                                         // ends behind the identifier / initializer
 619                                                                         // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=51851
 620                                                                         boolean multiFieldDeclaration=
 621                                                                                 r.getElementType() == IJavaElement.FIELD
 622                                                                                         && e.getElementType() == IJavaElement.FIELD
 623                                                                                         && rng.getOffset() == start;
 624
 625                                                                         // elements are inserted by occurrence
 626                                                                         // however, multi-field declarations have
 627                                                                         // equal source ranges offsets, therefore we
 628                                                                         // compare name-range offsets.
 629                                                                         boolean multiFieldOrderBefore= false;
 630                                                                         if (multiFieldDeclaration) {
 631                                                                                 if (r instanceof IField) {
 632                                                                                         ISourceRange nameRange= ((IField) r).getNameRange();
 633                                                                                         if (nameRange != null) {
 634                                                                                                 if (nameRange.getOffset() > nameOffset)
 635                                                                                                         multiFieldOrderBefore= true;
 636                                                                                         }
 637                                                                                 }
 638                                                                         }
 639
 640                                                                         if (!multiFieldDeclaration && overlaps(rng, start, end)) {
 641
 642                                                                                 // be tolerant if the delta is not correct, or if
 643                                                                                 // the tree has been updated other than by a delta
 644                                                                                 reuseTreeItem(item, e);
 645                                                                                 continue go2;
 646
 647                                                                         } else if (multiFieldOrderBefore || rng.getOffset() > start) {
 648
 649                                                                                 if (last != null && deletions.contains(last)) {
 650                                                                                         // reuse item
 651                                                                                         deletions.removeElement(last);
 652                                                                                         reuseTreeItem(last, e);
 653                                                                                 } else {
 654                                                                                         // nothing to reuse
 655                                                                                         createTreeItem(w, e, j);
 656                                                                                 }
 657                                                                                 continue go2;
 658                                                                         }
 659
 660                                                                 } catch (JavaModelException x) {
 661                                                                         // stumbled over deleted element
 662                                                                 }
 663
 664                                                                 last= item;
 665                                                         }
 666
 667                                                         // add at the end of the list
 668                                                         if (last != null && deletions.contains(last)) {
 669                                                                 // reuse item
 670                                                                 deletions.removeElement(last);
 671                                                                 reuseTreeItem(last, e);
 672                                                         } else {
 673                                                                 // nothing to reuse
 674                                                                 createTreeItem(w, e, -1);
 675                                                         }
 676
 677                                                 } catch (JavaModelException x) {
 678                                                         // the element to be added is not present -> don't add it
 679                                                 }
 680                                         }
 681
 682
 683                                         // remove items which haven't been reused
 684                                         Enumeration e= deletions.elements();
 685                                         while (e.hasMoreElements()) {
 686                                                 item= (Item) e.nextElement();
 687                                                 disassociate(item);
 688                                                 item.dispose();
 689                                         }
 690
 691                                         if (doUpdateParent)
 692                                                 updateItem(w, delta.getElement());
 693                                         if (!doUpdateParent && doUpdateParentsPlus && w instanceof Item)
 694                                                 updatePlus((Item)w, delta.getElement());
 695                                 }
 696
 697
 698
 699                                 /*
 700                                  * @see ContentViewer#handleLabelProviderChanged(LabelProviderChangedEvent)
 701                                  */
 702                                 protected void handleLabelProviderChanged(LabelProviderChangedEvent event) {
 703                                         Object input= getInput();
 704                                         if (event instanceof ProblemsLabelChangedEvent) {
 705                                                 ProblemsLabelChangedEvent e= (ProblemsLabelChangedEvent) event;
 706                                                 if (e.isMarkerChange() && input instanceof ICompilationUnit) {
 707                                                         return; // marker changes can be ignored
 708                                                 }
 709                                         }
 710                                         // look if the underlying resource changed
 711                                         Object[] changed= event.getElements();
 712                                         if (changed != null) {
 713                                                 IResource resource= getUnderlyingResource();
 714                                                 if (resource != null) {
 715                                                         for (int i= 0; i < changed.length; i++) {
 716                                                                 if (changed[i] != null && changed[i].equals(resource)) {
 717                                                                         // change event to a full refresh
 718                                                                         event= new LabelProviderChangedEvent((IBaseLabelProvider) event.getSource());
 719                                                                         break;
 720                                                                 }
 721                                                         }
 722                                                 }
 723                                         }
 724                                         super.handleLabelProviderChanged(event);
 725                                 }
 726
 727                                 private IResource getUnderlyingResource() {
 728                                         Object input= getInput();
 729                                         if (input instanceof ICompilationUnit) {
 730                                                 ICompilationUnit cu= (ICompilationUnit) input;
 731                                                 cu= JavaModelUtil.toOriginal(cu);
 732                                                 return cu.getResource();
 733                                         }
 734 //                                      else if (input instanceof IClassFile) {
 735 //                                              return ((IClassFile) input).getResource();
 736 //                                      }
 737                                         return null;
 738                                 }
 739
 740
 741                         }
 742
 743                         class LexicalSortingAction extends Action {
 744
 745                                 private JavaElementSorter fSorter= new JavaElementSorter();
 746
 747                                 public LexicalSortingAction() {
 748                                         super();
 749                                         WorkbenchHelp.setHelp(this, IJavaHelpContextIds.LEXICAL_SORTING_OUTLINE_ACTION);
 750                                         setText(PHPEditorMessages.getString("JavaOutlinePage.Sort.label")); //$NON-NLS-1$
 751                                         PHPUiImages.setLocalImageDescriptors(this, "alphab_sort_co.gif"); //$NON-NLS-1$
 752                                         setToolTipText(PHPEditorMessages.getString("JavaOutlinePage.Sort.tooltip")); //$NON-NLS-1$
 753                                         setDescription(PHPEditorMessages.getString("JavaOutlinePage.Sort.description")); //$NON-NLS-1$
 754
 755                                         boolean checked= PHPeclipsePlugin.getDefault().getPreferenceStore().getBoolean("LexicalSortingAction.isChecked"); //$NON-NLS-1$
 756                                         valueChanged(checked, false);
 757                                 }
 758
 759                                 public void run() {
 760                                         valueChanged(isChecked(), true);
 761                                 }
 762
 763                                 private void valueChanged(final boolean on, boolean store) {
 764                                         setChecked(on);
 765                                         BusyIndicator.showWhile(fOutlineViewer.getControl().getDisplay(), new Runnable() {
 766                                                 public void run() {
 767                                                         fOutlineViewer.setSorter(on ? fSorter : null);                                          }
 768                                         });
 769
 770                                         if (store)
 771                                                 PHPeclipsePlugin.getDefault().getPreferenceStore().setValue("LexicalSortingAction.isChecked", on); //$NON-NLS-1$
 772                                 }
 773                         }
 774
 775                 class ClassOnlyAction extends Action {
 776
 777                         public ClassOnlyAction() {
 778                                 super();
 779                                 WorkbenchHelp.setHelp(this, IJavaHelpContextIds.GO_INTO_TOP_LEVEL_TYPE_ACTION);
 780                                 setText(PHPEditorMessages.getString("JavaOutlinePage.GoIntoTopLevelType.label")); //$NON-NLS-1$
 781                                 setToolTipText(PHPEditorMessages.getString("JavaOutlinePage.GoIntoTopLevelType.tooltip")); //$NON-NLS-1$
 782                                 setDescription(PHPEditorMessages.getString("JavaOutlinePage.GoIntoTopLevelType.description")); //$NON-NLS-1$
 783                                 PHPUiImages.setLocalImageDescriptors(this, "gointo_toplevel_type.gif"); //$NON-NLS-1$
 784
 785                                 IPreferenceStore preferenceStore= PHPeclipsePlugin.getDefault().getPreferenceStore();
 786                                 boolean showclass= preferenceStore.getBoolean("GoIntoTopLevelTypeAction.isChecked"); //$NON-NLS-1$
 787                                 setTopLevelTypeOnly(showclass);
 788                         }
 789
 790                         /*
 791                          * @see org.eclipse.jface.action.Action#run()
 792                          */
 793                         public void run() {
 794                                 setTopLevelTypeOnly(!fTopLevelTypeOnly);
 795                         }
 796
 797                         private void setTopLevelTypeOnly(boolean show) {
 798                                 fTopLevelTypeOnly= show;
 799                                 setChecked(show);
 800                                 fOutlineViewer.refresh(false);
 801
 802                                 IPreferenceStore preferenceStore= PHPeclipsePlugin.getDefault().getPreferenceStore();
 803                                 preferenceStore.setValue("GoIntoTopLevelTypeAction.isChecked", show); //$NON-NLS-1$
 804                         }
 805                 }
 806
 807                 /**
 808                  * This action toggles whether this Java Outline page links
 809                  * its selection to the active editor.
 810                  *
 811                  * @since 3.0
 812                  */
 813                 public class ToggleLinkingAction extends AbstractToggleLinkingAction {
 814
 815                         JavaOutlinePage fJavaOutlinePage;
 816
 817                         /**
 818                          * Constructs a new action.
 819                          *
 820                          * @param outlinePage the Java outline page
 821                          */
 822                         public ToggleLinkingAction(JavaOutlinePage outlinePage) {
 823                                 boolean isLinkingEnabled= PreferenceConstants.getPreferenceStore().getBoolean(PreferenceConstants.EDITOR_SYNC_OUTLINE_ON_CURSOR_MOVE);
 824                                 setChecked(isLinkingEnabled);
 825                                 fJavaOutlinePage= outlinePage;
 826                         }
 827
 828                         /**
 829                          * Runs the action.
 830                          */
 831                         public void run() {
 832                                 PreferenceConstants.getPreferenceStore().setValue(PreferenceConstants.EDITOR_SYNC_OUTLINE_ON_CURSOR_MOVE, isChecked());
 833                                 if (isChecked() && fEditor != null)
 834                                         fEditor.synchronizeOutlinePage(fEditor.computeHighlightRangeSourceReference(), false);
 835                         }
 836
 837                 }
 838
 839
 840         /** A flag to show contents of top level type only */
 841         private boolean fTopLevelTypeOnly;
 842
 843         private IJavaElement fInput;
 844         private String fContextMenuID;
 845         private Menu fMenu;
 846         private JavaOutlineViewer fOutlineViewer;
 847         private PHPEditor fEditor;
 848
 849         private MemberFilterActionGroup fMemberFilterActionGroup;
 850
 851         private ListenerList fSelectionChangedListeners= new ListenerList();
 852         private ListenerList fPostSelectionChangedListeners= new ListenerList();
 853         private Hashtable fActions= new Hashtable();
 854
 855         private TogglePresentationAction fTogglePresentation;
 856         private GotoAnnotationAction fPreviousAnnotation;
 857         private GotoAnnotationAction fNextAnnotation;
 858         private TextEditorAction fShowJavadoc;
 859         private TextOperationAction fUndo;
 860         private TextOperationAction fRedo;
 861
 862         private ToggleLinkingAction fToggleLinkingAction;
 863
 864         private CompositeActionGroup fActionGroups;
 865
 866         private IPropertyChangeListener fPropertyChangeListener;
 867         /**
 868          * Custom filter action group.
 869          * @since 3.0
 870          */
 871         private CustomFiltersActionGroup fCustomFiltersActionGroup;
 872
 873         public JavaOutlinePage(String contextMenuID, PHPEditor editor) {
 874                 super();
 875
 876                 Assert.isNotNull(editor);
 877
 878                 fContextMenuID= contextMenuID;
 879                 fEditor= editor;
 880
 881                 fTogglePresentation= new TogglePresentationAction();
 882                 fPreviousAnnotation= new GotoAnnotationAction("PreviousAnnotation.", false); //$NON-NLS-1$
 883                 fNextAnnotation= new GotoAnnotationAction("NextAnnotation.", true); //$NON-NLS-1$
 884                 fShowJavadoc= (TextEditorAction) fEditor.getAction("ShowJavaDoc"); //$NON-NLS-1$
 885                 fUndo= (TextOperationAction) fEditor.getAction(ITextEditorActionConstants.UNDO);
 886                 fRedo= (TextOperationAction) fEditor.getAction(ITextEditorActionConstants.REDO);
 887
 888                 fTogglePresentation.setEditor(editor);
 889                 fPreviousAnnotation.setEditor(editor);
 890                 fNextAnnotation.setEditor(editor);
 891
 892                 fPropertyChangeListener= new IPropertyChangeListener() {
 893                         public void propertyChange(PropertyChangeEvent event) {
 894                                 doPropertyChange(event);
 895                         }
 896                 };
 897                 PHPeclipsePlugin.getDefault().getPreferenceStore().addPropertyChangeListener(fPropertyChangeListener);
 898         }
 899
 900         /**
 901          * Returns the primary type of a compilation unit (has the same
 902          * name as the compilation unit).
 903          *
 904          * @param compilationUnit the compilation unit
 905          * @return returns the primary type of the compilation unit, or
 906          * <code>null</code> if is does not have one
 907          */
 908         protected IType getMainType(ICompilationUnit compilationUnit) {
 909
 910                 if (compilationUnit == null)
 911                         return null;
 912
 913                 String name= compilationUnit.getElementName();
 914                 int index= name.indexOf('.');
 915                 if (index != -1)
 916                         name= name.substring(0, index);
 917                 IType type= compilationUnit.getType(name);
 918                 return type.exists() ? type : null;
 919         }
 920
 921         /**
 922          * Returns the primary type of a class file.
 923          *
 924          * @param classFile the class file
 925          * @return returns the primary type of the class file, or <code>null</code>
 926          * if is does not have one
 927          */
 928 //      protected IType getMainType(IClassFile classFile) {
 929 //              try {
 930 //                      IType type= classFile.getType();
 931 //                      return type != null && type.exists() ? type : null;
 932 //              } catch (JavaModelException e) {
 933 //                      return null;
 934 //              }
 935 //      }
 936
 937         /* (non-Javadoc)
 938          * Method declared on Page
 939          */
 940         public void init(IPageSite pageSite) {
 941                 super.init(pageSite);
 942         }
 943
 944         private void doPropertyChange(PropertyChangeEvent event) {
 945                 if (fOutlineViewer != null) {
 946                         if (MembersOrderPreferenceCache.isMemberOrderProperty(event.getProperty())) {
 947                                 fOutlineViewer.refresh(false);
 948                         }
 949                 }
 950         }
 951
 952         /*
 953          * @see ISelectionProvider#addSelectionChangedListener(ISelectionChangedListener)
 954          */
 955         public void addSelectionChangedListener(ISelectionChangedListener listener) {
 956                 if (fOutlineViewer != null)
 957                         fOutlineViewer.addSelectionChangedListener(listener);
 958                 else
 959                         fSelectionChangedListeners.add(listener);
 960         }
 961
 962         /*
 963          * @see ISelectionProvider#removeSelectionChangedListener(ISelectionChangedListener)
 964          */
 965         public void removeSelectionChangedListener(ISelectionChangedListener listener) {
 966                 if (fOutlineViewer != null)
 967                         fOutlineViewer.removeSelectionChangedListener(listener);
 968                 else
 969                         fSelectionChangedListeners.remove(listener);
 970         }
 971
 972         /*
 973          * @see ISelectionProvider#setSelection(ISelection)
 974          */
 975         public void setSelection(ISelection selection) {
 976                 if (fOutlineViewer != null)
 977                         fOutlineViewer.setSelection(selection);
 978         }
 979
 980         /*
 981          * @see ISelectionProvider#getSelection()
 982          */
 983         public ISelection getSelection() {
 984                 if (fOutlineViewer == null)
 985                         return StructuredSelection.EMPTY;
 986                 return fOutlineViewer.getSelection();
 987         }
 988
 989         /*
 990          * @see org.eclipse.jface.text.IPostSelectionProvider#addPostSelectionChangedListener(org.eclipse.jface.viewers.ISelectionChangedListener)
 991          */
 992         public void addPostSelectionChangedListener(ISelectionChangedListener listener) {
 993                 if (fOutlineViewer != null)
 994                         fOutlineViewer.addPostSelectionChangedListener(listener);
 995                 else
 996                         fPostSelectionChangedListeners.add(listener);
 997         }
 998
 999         /*
1000          * @see org.eclipse.jface.text.IPostSelectionProvider#removePostSelectionChangedListener(org.eclipse.jface.viewers.ISelectionChangedListener)
1001          */
1002         public void removePostSelectionChangedListener(ISelectionChangedListener listener) {
1003                 if (fOutlineViewer != null)
1004                         fOutlineViewer.removePostSelectionChangedListener(listener);
1005                 else
1006                         fPostSelectionChangedListeners.remove(listener);
1007         }
1008
1009         private void registerToolbarActions(IActionBars actionBars) {
1010
1011                 IToolBarManager toolBarManager= actionBars.getToolBarManager();
1012                 if (toolBarManager != null) {
1013                         toolBarManager.add(new LexicalSortingAction());
1014
1015                         fMemberFilterActionGroup= new MemberFilterActionGroup(fOutlineViewer, "net.sourceforge.phpeclipse.JavaOutlinePage"); //$NON-NLS-1$
1016                         fMemberFilterActionGroup.contributeToToolBar(toolBarManager);
1017
1018                         fCustomFiltersActionGroup.fillActionBars(actionBars);
1019
1020                         IMenuManager menu= actionBars.getMenuManager();
1021                         menu.add(new Separator("EndFilterGroup")); //$NON-NLS-1$
1022
1023                         fToggleLinkingAction= new ToggleLinkingAction(this);
1024                         menu.add(new ClassOnlyAction());
1025                         menu.add(fToggleLinkingAction);
1026                 }
1027         }
1028
1029         /*
1030          * @see IPage#createControl
1031          */
1032         public void createControl(Composite parent) {
1033
1034                 Tree tree= new Tree(parent, SWT.MULTI);
1035
1036                 AppearanceAwareLabelProvider lprovider= new AppearanceAwareLabelProvider(
1037                         AppearanceAwareLabelProvider.DEFAULT_TEXTFLAGS |  JavaElementLabels.F_APP_TYPE_SIGNATURE,
1038                         AppearanceAwareLabelProvider.DEFAULT_IMAGEFLAGS
1039                 );
1040
1041                 fOutlineViewer= new JavaOutlineViewer(tree);
1042                 initDragAndDrop();
1043                 fOutlineViewer.setContentProvider(new ChildrenProvider());
1044                 fOutlineViewer.setLabelProvider(new DecoratingJavaLabelProvider(lprovider));
1045
1046                 Object[] listeners= fSelectionChangedListeners.getListeners();
1047                 for (int i= 0; i < listeners.length; i++) {
1048                         fSelectionChangedListeners.remove(listeners[i]);
1049                         fOutlineViewer.addSelectionChangedListener((ISelectionChangedListener) listeners[i]);
1050                 }
1051
1052                 listeners= fPostSelectionChangedListeners.getListeners();
1053                 for (int i= 0; i < listeners.length; i++) {
1054                         fPostSelectionChangedListeners.remove(listeners[i]);
1055                         fOutlineViewer.addPostSelectionChangedListener((ISelectionChangedListener) listeners[i]);
1056                 }
1057
1058                 MenuManager manager= new MenuManager(fContextMenuID, fContextMenuID);
1059                 manager.setRemoveAllWhenShown(true);
1060                 manager.addMenuListener(new IMenuListener() {
1061                         public void menuAboutToShow(IMenuManager m) {
1062                                 contextMenuAboutToShow(m);
1063                         }
1064                 });
1065                 fMenu= manager.createContextMenu(tree);
1066                 tree.setMenu(fMenu);
1067
1068                 IPageSite site= getSite();
1069                 site.registerContextMenu(PHPeclipsePlugin.getPluginId() + ".outline", manager, fOutlineViewer); //$NON-NLS-1$
1070                 site.setSelectionProvider(fOutlineViewer);
1071
1072                 // we must create the groups after we have set the selection provider to the site
1073                 fActionGroups= new CompositeActionGroup(new ActionGroup[] {
1074 //                              new OpenViewActionGroup(this),
1075 //                              new CCPActionGroup(this),
1076                                 new GenerateActionGroup(this)});
1077 //                              new RefactorActionGroup(this),
1078 //                              new JavaSearchActionGroup(this)});
1079
1080                 // register global actions
1081                 IActionBars bars= site.getActionBars();
1082
1083                 bars.setGlobalActionHandler(ITextEditorActionConstants.UNDO, fUndo);
1084                 bars.setGlobalActionHandler(ITextEditorActionConstants.REDO, fRedo);
1085                 bars.setGlobalActionHandler(ITextEditorActionConstants.PREVIOUS, fPreviousAnnotation);
1086                 bars.setGlobalActionHandler(ITextEditorActionConstants.NEXT, fNextAnnotation);
1087                 bars.setGlobalActionHandler(PHPdtActionConstants.SHOW_JAVA_DOC, fShowJavadoc);
1088                 bars.setGlobalActionHandler(ITextEditorActionDefinitionIds.TOGGLE_SHOW_SELECTED_ELEMENT_ONLY, fTogglePresentation);
1089                 bars.setGlobalActionHandler(ITextEditorActionDefinitionIds.GOTO_NEXT_ANNOTATION, fNextAnnotation);
1090                 bars.setGlobalActionHandler(ITextEditorActionDefinitionIds.GOTO_PREVIOUS_ANNOTATION, fPreviousAnnotation);
1091
1092
1093                 fActionGroups.fillActionBars(bars);
1094
1095                 IStatusLineManager statusLineManager= bars.getStatusLineManager();
1096                 if (statusLineManager != null) {
1097                         StatusBarUpdater updater= new StatusBarUpdater(statusLineManager);
1098                         fOutlineViewer.addPostSelectionChangedListener(updater);
1099                 }
1100                 // Custom filter group
1101                 fCustomFiltersActionGroup= new CustomFiltersActionGroup("net.sourceforge.phpdt.ui.JavaOutlinePage", fOutlineViewer); //$NON-NLS-1$
1102
1103                 registerToolbarActions(bars);
1104
1105                 fOutlineViewer.setInput(fInput);
1106         }
1107
1108         public void dispose() {
1109
1110                 if (fEditor == null)
1111                         return;
1112
1113                 if (fMemberFilterActionGroup != null) {
1114                         fMemberFilterActionGroup.dispose();
1115                         fMemberFilterActionGroup= null;
1116                 }
1117
1118                 if (fCustomFiltersActionGroup != null) {
1119                         fCustomFiltersActionGroup.dispose();
1120                         fCustomFiltersActionGroup= null;
1121                 }
1122
1123
1124                 fEditor.outlinePageClosed();
1125                 fEditor= null;
1126
1127                 fSelectionChangedListeners.clear();
1128                 fSelectionChangedListeners= null;
1129
1130                 fPostSelectionChangedListeners.clear();
1131                 fPostSelectionChangedListeners= null;
1132
1133                 if (fPropertyChangeListener != null) {
1134                         PHPeclipsePlugin.getDefault().getPreferenceStore().removePropertyChangeListener(fPropertyChangeListener);
1135                         fPropertyChangeListener= null;
1136                 }
1137
1138                 if (fMenu != null && !fMenu.isDisposed()) {
1139                         fMenu.dispose();
1140                         fMenu= null;
1141                 }
1142
1143                 if (fActionGroups != null)
1144                         fActionGroups.dispose();
1145
1146                 fTogglePresentation.setEditor(null);
1147                 fPreviousAnnotation.setEditor(null);
1148                 fNextAnnotation.setEditor(null);
1149
1150                 fOutlineViewer= null;
1151
1152                 super.dispose();
1153         }
1154
1155         public Control getControl() {
1156                 if (fOutlineViewer != null)
1157                         return fOutlineViewer.getControl();
1158                 return null;
1159         }
1160
1161         public void setInput(IJavaElement inputElement) {
1162                 fInput= inputElement;
1163                 if (fOutlineViewer != null)
1164                         fOutlineViewer.setInput(fInput);
1165         }
1166
1167         public void select(ISourceReference reference) {
1168                 if (fOutlineViewer != null) {
1169
1170                         ISelection s= fOutlineViewer.getSelection();
1171                         if (s instanceof IStructuredSelection) {
1172                                 IStructuredSelection ss= (IStructuredSelection) s;
1173                                 List elements= ss.toList();
1174                                 if (!elements.contains(reference)) {
1175                                         s= (reference == null ? StructuredSelection.EMPTY : new StructuredSelection(reference));
1176                                         fOutlineViewer.setSelection(s, true);
1177                                 }
1178                         }
1179                 }
1180         }
1181
1182         public void setAction(String actionID, IAction action) {
1183                 Assert.isNotNull(actionID);
1184                 if (action == null)
1185                         fActions.remove(actionID);
1186                 else
1187                         fActions.put(actionID, action);
1188         }
1189
1190         public IAction getAction(String actionID) {
1191                 Assert.isNotNull(actionID);
1192                 return (IAction) fActions.get(actionID);
1193         }
1194
1195         /*
1196          * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
1197          */
1198         public Object getAdapter(Class key) {
1199                 if (key == IShowInSource.class) {
1200                         return getShowInSource();
1201                 }
1202                 if (key == IShowInTargetList.class) {
1203                         return new IShowInTargetList() {
1204                                 public String[] getShowInTargetIds() {
1205                                         return new String[] { JavaUI.ID_PACKAGES };
1206                                 }
1207
1208                         };
1209                 }
1210                 if (key == IShowInTarget.class) {
1211                         return getShowInTarget();
1212                 }
1213
1214                 return null;
1215         }
1216
1217         /**
1218          * Convenience method to add the action installed under the given actionID to the
1219          * specified group of the menu.
1220          *
1221          * @param menu          the menu manager
1222          * @param group         the group to which to add the action
1223          * @param actionID      the ID of the new action
1224          */
1225         protected void addAction(IMenuManager menu, String group, String actionID) {
1226                 IAction action= getAction(actionID);
1227                 if (action != null) {
1228                         if (action instanceof IUpdate)
1229                                 ((IUpdate) action).update();
1230
1231                         if (action.isEnabled()) {
1232                                 IMenuManager subMenu= menu.findMenuUsingPath(group);
1233                                 if (subMenu != null)
1234                                         subMenu.add(action);
1235                                 else
1236                                         menu.appendToGroup(group, action);
1237                         }
1238                 }
1239         }
1240
1241         protected void contextMenuAboutToShow(IMenuManager menu) {
1242
1243                 PHPeclipsePlugin.createStandardGroups(menu);
1244
1245                 IStructuredSelection selection= (IStructuredSelection)getSelection();
1246                 fActionGroups.setContext(new ActionContext(selection));
1247                 fActionGroups.fillContextMenu(menu);
1248         }
1249
1250         /*
1251          * @see Page#setFocus()
1252          */
1253         public void setFocus() {
1254                 if (fOutlineViewer != null)
1255                         fOutlineViewer.getControl().setFocus();
1256         }
1257
1258         /**
1259          * Checks whether a given Java element is an inner type.
1260          *
1261          * @param element the java element
1262          * @return <code>true</code> iff the given element is an inner type
1263          */
1264         private boolean isInnerType(IJavaElement element) {
1265
1266                 if (element != null && element.getElementType() == IJavaElement.TYPE) {
1267                         IType type= (IType)element;
1268                         try {
1269                                 return type.isMember();
1270                         } catch (JavaModelException e) {
1271                                 IJavaElement parent= type.getParent();
1272                                 if (parent != null) {
1273                                         int parentElementType= parent.getElementType();
1274                                         return (parentElementType != IJavaElement.COMPILATION_UNIT && parentElementType != IJavaElement.CLASS_FILE);
1275                                 }
1276                         }
1277                 }
1278
1279                 return false;
1280         }
1281
1282         /**
1283          * Returns the <code>IShowInSource</code> for this view.
1284          *
1285          * @return the {@link IShowInSource}
1286          */
1287         protected IShowInSource getShowInSource() {
1288                 return new IShowInSource() {
1289                         public ShowInContext getShowInContext() {
1290                                 return new ShowInContext(
1291                                         null,
1292                                         getSite().getSelectionProvider().getSelection());
1293                         }
1294                 };
1295         }
1296
1297         /**
1298          * Returns the <code>IShowInTarget</code> for this view.
1299          *
1300          * @return the {@link IShowInTarget}
1301          */
1302         protected IShowInTarget getShowInTarget() {
1303                 return new IShowInTarget() {
1304                         public boolean show(ShowInContext context) {
1305                                 ISelection sel= context.getSelection();
1306                                 if (sel instanceof ITextSelection) {
1307                                         ITextSelection tsel= (ITextSelection) sel;
1308                                         int offset= tsel.getOffset();
1309                                         IJavaElement element= fEditor.getElementAt(offset);
1310                                         if (element != null) {
1311                                                 setSelection(new StructuredSelection(element));
1312                                                 return true;
1313                                         }
1314                                 }
1315                                 return false;
1316                         }
1317                 };
1318         }
1319
1320         private void initDragAndDrop() {
1321                 int ops= DND.DROP_COPY | DND.DROP_MOVE | DND.DROP_LINK;
1322                 Transfer[] transfers= new Transfer[] {
1323                         LocalSelectionTransfer.getInstance()
1324                         };
1325
1326                 // Drop Adapter
1327 //              TransferDropTargetListener[] dropListeners= new TransferDropTargetListener[] {
1328 //                      new SelectionTransferDropAdapter(fOutlineViewer)
1329 //              };
1330 //              fOutlineViewer.addDropSupport(ops | DND.DROP_DEFAULT, transfers, new DelegatingDropAdapter(dropListeners));
1331
1332                 // Drag Adapter
1333 //              TransferDragSourceListener[] dragListeners= new TransferDragSourceListener[] {
1334 //                      new SelectionTransferDragAdapter(fOutlineViewer)
1335 //              };
1336 //              fOutlineViewer.addDragSupport(ops, transfers, new JdtViewerDragAdapter(fOutlineViewer, dragListeners));
1337         }
1338 }