misc changes
[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpeclipse / phpeditor / PHPUnitEditor.java
index 34ceb6f..a7cc596 100644 (file)
@@ -7,15 +7,19 @@ import java.util.List;
 
 import net.sourceforge.phpdt.core.ICompilationUnit;
 import net.sourceforge.phpdt.core.IJavaElement;
+import net.sourceforge.phpdt.core.IMember;
 import net.sourceforge.phpdt.core.ISourceRange;
 import net.sourceforge.phpdt.core.ISourceReference;
 import net.sourceforge.phpdt.core.JavaCore;
 import net.sourceforge.phpdt.core.JavaModelException;
+import net.sourceforge.phpdt.core.dom.CompilationUnit;
 import net.sourceforge.phpdt.internal.compiler.parser.Scanner;
 import net.sourceforge.phpdt.internal.ui.actions.CompositeActionGroup;
 import net.sourceforge.phpdt.internal.ui.text.ContentAssistPreference;
 import net.sourceforge.phpdt.internal.ui.text.IPHPPartitions;
 import net.sourceforge.phpdt.internal.ui.text.PHPPairMatcher;
+import net.sourceforge.phpdt.internal.ui.text.SmartBackspaceManager;
+import net.sourceforge.phpdt.internal.ui.text.java.IJavaReconcilingListener;
 import net.sourceforge.phpdt.internal.ui.text.link.LinkedPositionManager;
 import net.sourceforge.phpdt.internal.ui.text.link.LinkedPositionUI;
 import net.sourceforge.phpdt.internal.ui.text.link.LinkedPositionUI.ExitFlags;
@@ -25,6 +29,7 @@ import net.sourceforge.phpdt.ui.actions.GenerateActionGroup;
 import net.sourceforge.phpdt.ui.text.JavaTextTools;
 import net.sourceforge.phpeclipse.PHPeclipsePlugin;
 
+import org.eclipse.core.internal.runtime.ListenerList;
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IWorkspaceRoot;
 import org.eclipse.core.resources.ResourcesPlugin;
@@ -47,7 +52,6 @@ import org.eclipse.jface.text.IDocument;
 import org.eclipse.jface.text.ILineTracker;
 import org.eclipse.jface.text.IRegion;
 import org.eclipse.jface.text.ITextOperationTarget;
-import org.eclipse.jface.text.ITextSelection;
 import org.eclipse.jface.text.ITextViewerExtension;
 import org.eclipse.jface.text.ITypedRegion;
 import org.eclipse.jface.text.IWidgetTokenKeeper;
@@ -58,7 +62,6 @@ import org.eclipse.jface.text.source.ISourceViewer;
 import org.eclipse.jface.text.source.IVerticalRuler;
 import org.eclipse.jface.text.source.SourceViewerConfiguration;
 import org.eclipse.jface.util.PropertyChangeEvent;
-import org.eclipse.jface.viewers.ISelectionProvider;
 import org.eclipse.jface.window.Window;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.VerifyKeyListener;
@@ -70,13 +73,17 @@ import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.ui.IEditorInput;
+import org.eclipse.ui.IEditorPart;
 import org.eclipse.ui.IFileEditorInput;
+import org.eclipse.ui.IWorkbenchPage;
+import org.eclipse.ui.IWorkbenchWindow;
 import org.eclipse.ui.actions.ActionContext;
 import org.eclipse.ui.actions.ActionGroup;
 import org.eclipse.ui.dialogs.SaveAsDialog;
 import org.eclipse.ui.editors.text.IStorageDocumentProvider;
 import org.eclipse.ui.help.WorkbenchHelp;
 import org.eclipse.ui.part.FileEditorInput;
+import org.eclipse.ui.texteditor.AbstractDecoratedTextEditorPreferenceConstants;
 import org.eclipse.ui.texteditor.ContentAssistAction;
 import org.eclipse.ui.texteditor.IDocumentProvider;
 import org.eclipse.ui.texteditor.ITextEditorActionConstants;
@@ -504,7 +511,358 @@ public class PHPUnitEditor extends PHPEditor { //implements
       // IDocument.DEFAULT_CONTENT_TYPE);
     }
   };
+  /**
+        * Remembers data related to the current selection to be able to
+        * restore it later.
+        * 
+        * @since 3.0
+        */
+       private class RememberedSelection {
+               /** The remembered selection start. */
+               private RememberedOffset fStartOffset= new RememberedOffset();
+               /** The remembered selection end. */
+               private RememberedOffset fEndOffset= new RememberedOffset();
+
+               /**
+                * Remember current selection.
+                */
+               public void remember() {
+                       /* https://bugs.eclipse.org/bugs/show_bug.cgi?id=52257
+                        * This method may be called inside an async call posted
+                        * to the UI thread, so protect against intermediate disposal
+                        * of the editor. 
+                        */
+                       ISourceViewer viewer= getSourceViewer();
+                       if (viewer != null) {
+                               IRegion selection= getSignedSelection(viewer);
+                               int startOffset= selection.getOffset();
+                               int endOffset= startOffset + selection.getLength();
+                               
+                               fStartOffset.setOffset(startOffset);
+                               fEndOffset.setOffset(endOffset);
+                       }
+               }
+
+               /**
+                * Restore remembered selection.
+                */
+               public void restore() {
+                       /* https://bugs.eclipse.org/bugs/show_bug.cgi?id=52257
+                        * This method may be called inside an async call posted
+                        * to the UI thread, so protect against intermediate disposal
+                        * of the editor.
+                        */
+                       if (getSourceViewer() == null)
+                               return;
+                       
+                       try {
+                               
+                               int startOffset, endOffset;
+                               int revealStartOffset, revealEndOffset; 
+                               if (showsHighlightRangeOnly()) {
+                                       IJavaElement newStartElement= fStartOffset.getElement();
+                                       startOffset= fStartOffset.getRememberedOffset(newStartElement);
+                                       revealStartOffset= fStartOffset.getRevealOffset(newStartElement, startOffset);
+                                       if (revealStartOffset == -1)
+                                               startOffset= -1;
+                                       
+                                       IJavaElement newEndElement= fEndOffset.getElement();
+                                       endOffset= fEndOffset.getRememberedOffset(newEndElement);
+                                       revealEndOffset= fEndOffset.getRevealOffset(newEndElement, endOffset);
+                                       if (revealEndOffset == -1)
+                                               endOffset= -1;
+                               } else {
+                                       startOffset= fStartOffset.getOffset();
+                                       revealStartOffset= startOffset;
+                                       endOffset= fEndOffset.getOffset();
+                                       revealEndOffset= endOffset;
+                               }
+                               
+                               if (startOffset == -1) {
+                                       startOffset= endOffset; // fallback to caret offset
+                                       revealStartOffset= revealEndOffset;
+                               }
+                               
+                               if (endOffset == -1) {
+                                       endOffset= startOffset; // fallback to other offset
+                                       revealEndOffset= revealStartOffset;
+                               }
+                               
+                               IJavaElement element;
+                               if (endOffset == -1) {
+                                        // fallback to element selection
+                                       element= fEndOffset.getElement();
+                                       if (element == null)
+                                               element= fStartOffset.getElement();
+                                       if (element != null)
+                                               setSelection(element);
+                                       return;
+                               }
+                                                       
+                               if (isValidSelection(revealStartOffset, revealEndOffset - revealStartOffset) && isValidSelection(startOffset, endOffset - startOffset))
+                                       selectAndReveal(startOffset, endOffset - startOffset, revealStartOffset, revealEndOffset - revealStartOffset);
+                       } finally {
+                               fStartOffset.clear();
+                               fEndOffset.clear();
+                       }
+               }
+
+               private boolean isValidSelection(int offset, int length) {
+                       IDocumentProvider provider= getDocumentProvider();
+                       if (provider != null) {
+                               IDocument document= provider.getDocument(getEditorInput());
+                               if (document != null) {
+                                       int end= offset + length;
+                                       int documentLength= document.getLength();
+                                       return 0 <= offset  && offset <= documentLength && 0 <= end && end <= documentLength;
+                               }
+                       }
+                       return false;
+               }
+               
+       }
 
+       /**
+        * Remembers additional data for a given
+        * offset to be able restore it later.
+        * 
+        * @since 3.0
+        */
+       private class RememberedOffset {
+               /** Remembered line for the given offset */
+               private int fLine;
+               /** Remembered column for the given offset*/
+               private int fColumn;
+               /** Remembered Java element for the given offset*/
+               private IJavaElement fElement;
+               /** Remembered Java element line for the given offset*/
+               private int fElementLine;
+               
+               /**
+                * Store visual properties of the given offset.  
+                * 
+                * @param offset Offset in the document
+                */
+               public void setOffset(int offset) {
+                       try {
+                               IDocument document= getSourceViewer().getDocument();
+                               fLine= document.getLineOfOffset(offset);
+                               fColumn= offset - document.getLineOffset(fLine);
+                               fElement= getElementAt(offset, true);
+
+                               fElementLine= -1;
+                               if (fElement instanceof IMember) {
+                                       ISourceRange range= ((IMember) fElement).getNameRange();
+                                       if (range != null)
+                                               fElementLine= document.getLineOfOffset(range.getOffset());
+                               }
+                               if (fElementLine == -1)
+                                       fElementLine= document.getLineOfOffset(getOffset(fElement));
+                       } catch (BadLocationException e) {
+                               // should not happen
+                               PHPeclipsePlugin.log(e);
+                               clear();
+                       } catch (JavaModelException e) {
+                               // should not happen
+                         PHPeclipsePlugin.log(e.getStatus());
+                               clear();
+                       }
+               }
+
+               /**
+                * Return offset recomputed from stored visual properties.  
+                * 
+                * @return Offset in the document
+                */
+               public int getOffset() {
+                       IJavaElement newElement= getElement();
+                       
+                       int offset= getRememberedOffset(newElement);
+                       
+                       if (offset != -1 && !containsOffset(newElement, offset) && (offset == 0 || !containsOffset(newElement, offset - 1)))
+                               return -1;
+                       
+                       return offset;
+               }
+               
+               /**
+                * Return offset recomputed from stored visual properties.  
+                * 
+                * @param newElement Enclosing element
+                * @return Offset in the document
+                */
+               public int getRememberedOffset(IJavaElement newElement) {
+                       try {
+                               if (newElement == null)
+                                       return -1;
+                               
+                               IDocument document= getSourceViewer().getDocument();
+                               int newElementLine= -1;
+                               if (newElement instanceof IMember) {
+                                       ISourceRange range= ((IMember) newElement).getNameRange();
+                                       if (range != null)
+                                               newElementLine= document.getLineOfOffset(range.getOffset());
+                               }
+                               if (newElementLine == -1)
+                                       newElementLine= document.getLineOfOffset(getOffset(newElement));
+                               if (newElementLine == -1)
+                                       return -1;
+
+                               int newLine= fLine + newElementLine - fElementLine;
+                               if (newLine < 0 || newLine >= document.getNumberOfLines())
+                                       return -1;
+                               int maxColumn= document.getLineLength(newLine);
+                               String lineDelimiter= document.getLineDelimiter(newLine);
+                               if (lineDelimiter != null)
+                                       maxColumn= maxColumn - lineDelimiter.length();
+                               int offset;
+                               if (fColumn > maxColumn)
+                                       offset= document.getLineOffset(newLine) + maxColumn;
+                               else
+                                       offset= document.getLineOffset(newLine) + fColumn;
+
+                               return offset;
+                       } catch (BadLocationException e) {
+                               // should not happen
+                         PHPeclipsePlugin.log(e);
+                               return -1;
+                       } catch (JavaModelException e) {
+                               // should not happen
+                         PHPeclipsePlugin.log(e.getStatus());
+                               return -1;
+                       }
+               }
+               
+               /**
+                * Returns the offset used to reveal the given element based on the given selection offset.
+                * @param element the element
+                * @param offset the selection offset
+                * @return the offset to reveal the given element based on the given selection offset
+                */
+               public int getRevealOffset(IJavaElement element, int offset) {
+                       if (element == null || offset == -1)
+                               return -1;
+
+                       if (containsOffset(element, offset)) {
+                               if (offset > 0) {
+                                       IJavaElement alternateElement= getElementAt(offset, false);
+                                       if (element.getHandleIdentifier().equals(alternateElement.getParent().getHandleIdentifier()))
+                                               return offset - 1; // Solves test case 2 from https://bugs.eclipse.org/bugs/show_bug.cgi?id=47727#c3
+                               }
+                               return offset;
+                       } else if (offset > 0 && containsOffset(element, offset - 1))
+                               return offset - 1; // Solves test case 1 from https://bugs.eclipse.org/bugs/show_bug.cgi?id=47727#c3
+                       
+                       return -1;
+               }
+
+               /**
+                * Return Java element recomputed from stored visual properties.  
+                * 
+                * @return Java element
+                */
+               public IJavaElement getElement() {
+                       if (fElement == null)
+                               return null;
+                       
+                       return findElement(fElement);
+               }
+
+               /**
+                * Clears the stored position 
+                */
+               public void clear() {
+                       fLine= -1;
+                       fColumn= -1;
+                       fElement= null;
+                       fElementLine= -1;
+               }
+               
+               /**
+                * Does the given Java element contain the given offset?
+                * @param element Java element
+                * @param offset Offset
+                * @return <code>true</code> iff the Java element contains the offset
+                */
+               private boolean containsOffset(IJavaElement element, int offset) {
+                       int elementOffset= getOffset(element);
+                       int elementLength= getLength(element);
+                       return (elementOffset > -1 && elementLength > -1) ? (offset >= elementOffset && offset < elementOffset + elementLength) : false;
+               }
+               /**
+                * Returns the offset of the given Java element.
+                * 
+                * @param element       Java element
+                * @return Offset of the given Java element
+                */
+               private int getOffset(IJavaElement element) {
+                       if (element instanceof ISourceReference) {
+                               ISourceReference sr= (ISourceReference) element;
+                               try {
+                                       ISourceRange srcRange= sr.getSourceRange();
+                                       if (srcRange != null)
+                                               return srcRange.getOffset();
+                               } catch (JavaModelException e) {
+                               }
+                       }
+                       return -1;      
+               }
+               
+               /**
+                * Returns the length of the given Java element.
+                * 
+                * @param element       Java element
+                * @return Length of the given Java element
+                */
+               private int getLength(IJavaElement element) {
+                       if (element instanceof ISourceReference) {
+                               ISourceReference sr= (ISourceReference) element;
+                               try {
+                                       ISourceRange srcRange= sr.getSourceRange();
+                                       if (srcRange != null)
+                                               return srcRange.getLength();
+                               } catch (JavaModelException e) {
+                               }
+                       }
+                       return -1;      
+               }
+               
+               /**
+                * Returns the updated java element for the old java element.
+                * 
+                * @param element Old Java element
+                * @return Updated Java element
+                */
+               private IJavaElement findElement(IJavaElement element) {
+                       
+                       if (element == null)
+                               return null;
+                       
+                       IWorkingCopyManager manager= PHPeclipsePlugin.getDefault().getWorkingCopyManager();
+                       ICompilationUnit unit= manager.getWorkingCopy(getEditorInput());
+                       
+                       if (unit != null) {
+                               try {
+                                       
+                                       synchronized (unit) {
+//                                             unit.reconcile(ICompilationUnit.NO_AST, false, null, null);
+                                               unit.reconcile();
+                                       }
+                                       IJavaElement[] findings= unit.findElements(element);
+                                       if (findings != null && findings.length > 0)
+                                               return findings[0];
+                               
+                               } catch (JavaModelException x) {
+                                 PHPeclipsePlugin.log(x.getStatus());
+                                       // nothing found, be tolerant and go on
+                               }
+                       }
+                       
+                       return null;
+               }
+               
+       }
+       
   static class TabConverter implements ITextConverter {
     private int fTabRatio;
 
@@ -862,8 +1220,12 @@ public class PHPUnitEditor extends PHPEditor { //implements
   /** The remembered java element */
   private IJavaElement fRememberedElement;
 
-  /** The remembered selection */
-  private ITextSelection fRememberedSelection;
+  /**
+        * The remembered selection.
+        * @since 3.0
+        */
+ private RememberedSelection fRememberedSelection= new RememberedSelection();
+       
 
   /** The remembered php element offset */
   private int fRememberedElementOffset;
@@ -1060,6 +1422,22 @@ public class PHPUnitEditor extends PHPEditor { //implements
   /**
    * Creates a new php unit editor.
    */
+  
+  /**
+        * Reconciling listeners.
+        * @since 3.0
+        */
+       private ListenerList fReconcilingListeners= new ListenerList();
+
+       /**
+        * Mutex for the reconciler. See https://bugs.eclipse.org/bugs/show_bug.cgi?id=63898
+        * for a description of the problem.
+        * <p>
+        * TODO remove once the underlying problem is solved.
+        * </p>
+        */
+       private final Object fReconcilerLock= new Object();
+  
   public PHPUnitEditor() {
     super();
     setDocumentProvider(PHPeclipsePlugin.getDefault()
@@ -1746,28 +2124,6 @@ public class PHPUnitEditor extends PHPEditor { //implements
   }
 
   /*
-   * @see AbstractTextEditor#canHandleMove(IEditorInput, IEditorInput)
-   */
-  protected boolean canHandleMove(IEditorInput originalElement,
-      IEditorInput movedElement) {
-    String oldExtension = ""; //$NON-NLS-1$
-    if (originalElement instanceof IFileEditorInput) {
-      IFile file = ((IFileEditorInput) originalElement).getFile();
-      if (file != null) {
-        String ext = file.getFileExtension();
-        if (ext != null)
-          oldExtension = ext;
-      }
-    }
-    String newExtension = ""; //$NON-NLS-1$
-    if (movedElement instanceof IFileEditorInput) {
-      IFile file = ((IFileEditorInput) movedElement).getFile();
-      if (file != null)
-        newExtension = file.getFileExtension();
-    }
-    return oldExtension.equals(newExtension);
-  }
-  /*
         * @see org.eclipse.jdt.internal.ui.javaeditor.JavaEditor#getInputElement()
         */
        protected IJavaElement getInputJavaElement() {
@@ -1795,6 +2151,7 @@ public class PHPUnitEditor extends PHPEditor { //implements
       page.setInput(manager.getWorkingCopy(input));
     }
   }
+  
 
   /*
    * @see AbstractTextEditor#performSaveOperation(WorkspaceModifyOperation,
@@ -2115,26 +2472,47 @@ public class PHPUnitEditor extends PHPEditor { //implements
     return true;
   }
 
+       /*
+        * @see org.eclipse.jdt.internal.ui.text.java.IJavaReconcilingListener#aboutToBeReconciled()
+        * @since 3.0
+        */
+       public void aboutToBeReconciled() {
+
+               // Notify AST provider
+//             PHPeclipsePlugin.getDefault().getASTProvider().aboutToBeReconciled(getInputJavaElement());
+               
+               // Notify listeners
+               Object[] listeners = fReconcilingListeners.getListeners();
+               for (int i = 0, length= listeners.length; i < length; ++i)
+                       ((IJavaReconcilingListener)listeners[i]).aboutToBeReconciled();
+       }
+       
   /*
-   * @see IReconcilingParticipant#reconciled()
-   */
-  public void reconciled() {
-    if (synchronizeOutlineOnCursorMove()) {
-      Shell shell = getSite().getShell();
-      if (shell != null && !shell.isDisposed()) {
-        shell.getDisplay().asyncExec(new Runnable() {
-          public void run() {
-            synchronizeOutlinePageSelection();
-          }
-        });
-      }
-    }
-  }
-
-  protected void updateStateDependentActions() {
-    super.updateStateDependentActions();
-    fGenerateActionGroup.editorStateChanged();
-  }
+        * @see org.eclipse.jdt.internal.ui.text.java.IJavaReconcilingListener#reconciled(CompilationUnit, boolean, IProgressMonitor)
+        * @since 3.0
+        */
+       public void reconciled(CompilationUnit ast, boolean forced, IProgressMonitor progressMonitor) {
+
+               // Always notify AST provider
+//             PHPeclipsePlugin.getDefault().getASTProvider().reconciled(ast, getInputJavaElement());
+               
+               // Notify listeners
+//             Object[] listeners = fReconcilingListeners.getListeners();
+//             for (int i = 0, length= listeners.length; i < length; ++i)
+//                     ((IJavaReconcilingListener)listeners[i]).reconciled(ast, forced, progressMonitor);
+
+               // Update Java Outline page selection
+               if (!forced && !progressMonitor.isCanceled()) {
+                       Shell shell= getSite().getShell();
+                       if (shell != null && !shell.isDisposed()) {
+                               shell.getDisplay().asyncExec(new Runnable() {
+                                       public void run() {
+                                               selectionChanged();
+                                       }
+                               });
+                       }
+               }
+       }
 
   private boolean synchronizeOutlineOnCursorMove() {
     return PreferenceConstants.getPreferenceStore().getBoolean(
@@ -2182,86 +2560,147 @@ public class PHPUnitEditor extends PHPEditor { //implements
     return -1;
   }
 
-  /*
-   * @see AbstractTextEditor#rememberSelection()
-   */
-  protected void rememberSelection() {
-    ISelectionProvider sp = getSelectionProvider();
-    fRememberedSelection = (sp == null ? null : (ITextSelection) sp
-        .getSelection());
-    if (fRememberedSelection != null) {
-      fRememberedElement = getElementAt(fRememberedSelection.getOffset(), true);
-      fRememberedElementOffset = getOffset(fRememberedElement);
-    }
-  }
+  
 
   /*
    * @see AbstractTextEditor#restoreSelection()
    */
-  protected void restoreSelection() {
-    try {
-      if (getSourceViewer() == null || fRememberedSelection == null)
-        return;
-      IJavaElement newElement = findElement(fRememberedElement);
-      int newOffset = getOffset(newElement);
-      int delta = (newOffset > -1 && fRememberedElementOffset > -1) ? newOffset
-          - fRememberedElementOffset : 0;
-      if (isValidSelection(delta + fRememberedSelection.getOffset(),
-          fRememberedSelection.getLength()))
-        selectAndReveal(delta + fRememberedSelection.getOffset(),
-            fRememberedSelection.getLength());
-    } finally {
-      fRememberedSelection = null;
-      fRememberedElement = null;
-      fRememberedElementOffset = -1;
-    }
-  }
+//  protected void restoreSelection() {
+//    try {
+//      if (getSourceViewer() == null || fRememberedSelection == null)
+//        return;
+//      IJavaElement newElement = findElement(fRememberedElement);
+//      int newOffset = getOffset(newElement);
+//      int delta = (newOffset > -1 && fRememberedElementOffset > -1) ? newOffset
+//          - fRememberedElementOffset : 0;
+//      if (isValidSelection(delta + fRememberedSelection.getOffset(),
+//          fRememberedSelection.getLength()))
+//        selectAndReveal(delta + fRememberedSelection.getOffset(),
+//            fRememberedSelection.getLength());
+//    } finally {
+//      fRememberedSelection = null;
+//      fRememberedElement = null;
+//      fRememberedElementOffset = -1;
+//    }
+//  }
 
-  //   /*
-  //    * @see
-  // org.eclipse.jdt.internal.ui.text.java.IJavaReconcilingListener#aboutToBeReconciled()
-  //    * @since 3.0
-  //    */
-  //   public void aboutToBeReconciled() {
-  //
-  //           // Notify AST provider
-  //           PHPeclipsePlugin.getDefault().getASTProvider().aboutToBeReconciled(getInputJavaElement());
-  //           
-  //           // Notify listeners
-  //           Object[] listeners = fReconcilingListeners.getListeners();
-  //           for (int i = 0, length= listeners.length; i < length; ++i)
-  //                   ((IJavaReconcilingListener)listeners[i]).aboutToBeReconciled();
-  //   }
-  //   
-  //   /*
-  //    * @see
-  // org.eclipse.jdt.internal.ui.text.java.IJavaReconcilingListener#reconciled(CompilationUnit,
-  // boolean, IProgressMonitor)
-  //    * @since 3.0
-  //    */
-  //   public void reconciled(net.sourceforge.phpdt.core.dom.CompilationUnit
-  // ast, boolean forced, IProgressMonitor progressMonitor) {
-  //
-  //           // Always notify AST provider
-  //           PHPeclipsePlugin.getDefault().getASTProvider().reconciled(ast,
-  // getInputJavaElement());
-  //           
-  //           // Notify listeners
-  //           Object[] listeners = fReconcilingListeners.getListeners();
-  //           for (int i = 0, length= listeners.length; i < length; ++i)
-  //                   ((IJavaReconcilingListener)listeners[i]).reconciled(ast, forced,
-  // progressMonitor);
-  //
-  //           // Update Java Outline page selection
-  //           if (!forced && !progressMonitor.isCanceled()) {
-  //                   Shell shell= getSite().getShell();
-  //                   if (shell != null && !shell.isDisposed()) {
-  //                           shell.getDisplay().asyncExec(new Runnable() {
-  //                                   public void run() {
-  //                                           selectionChanged();
-  //                                   }
-  //                           });
-  //                   }
-  //           }
-  //   }
+  /**
+        * Tells whether this is the active editor in the active page.
+        *
+        * @return <code>true</code> if this is the active editor in the active page
+        * @see IWorkbenchPage#getActiveEditor();
+        */
+       protected final boolean isActiveEditor() {
+               IWorkbenchWindow window= getSite().getWorkbenchWindow();
+               IWorkbenchPage page= window.getActivePage();
+               if (page == null)
+                       return false;
+               IEditorPart activeEditor= page.getActiveEditor();
+               return activeEditor != null && activeEditor.equals(this);
+       }
+       
+       /**
+        * Adds the given listener.
+        * Has no effect if an identical listener was not already registered.
+        * 
+        * @param listener      The reconcile listener to be added
+        * @since 3.0
+        */
+       final void addReconcileListener(IJavaReconcilingListener listener) {
+               synchronized (fReconcilingListeners) {
+                       fReconcilingListeners.add(listener);
+               }
+       }
+       
+       /**
+        * Removes the given listener.
+        * Has no effect if an identical listener was not already registered.
+        * 
+        * @param listener      the reconcile listener to be removed
+        * @since 3.0
+        */
+       final void removeReconcileListener(IJavaReconcilingListener listener) {
+               synchronized (fReconcilingListeners) {
+                       fReconcilingListeners.remove(listener);
+               }
+       }
+               
+       protected void updateStateDependentActions() {
+               super.updateStateDependentActions();
+               fGenerateActionGroup.editorStateChanged();
+       }
+       
+       /*
+        * @see AbstractTextEditor#rememberSelection()
+        */
+       protected void rememberSelection() {
+               fRememberedSelection.remember();
+       }
+       
+       /*
+        * @see AbstractTextEditor#restoreSelection()
+        */
+       protected void restoreSelection() {
+               fRememberedSelection.restore();
+       }
+       
+       /*
+        * @see AbstractTextEditor#canHandleMove(IEditorInput, IEditorInput)
+        */
+       protected boolean canHandleMove(IEditorInput originalElement, IEditorInput movedElement) {
+               
+               String oldExtension= ""; //$NON-NLS-1$
+               if (originalElement instanceof IFileEditorInput) {
+                       IFile file= ((IFileEditorInput) originalElement).getFile();
+                       if (file != null) {
+                               String ext= file.getFileExtension();
+                               if (ext != null)
+                                       oldExtension= ext;
+                       }
+               }
+               
+               String newExtension= ""; //$NON-NLS-1$
+               if (movedElement instanceof IFileEditorInput) {
+                       IFile file= ((IFileEditorInput) movedElement).getFile();
+                       if (file != null)
+                               newExtension= file.getFileExtension();
+               }
+               
+               return oldExtension.equals(newExtension);
+       }
+
+       /*
+        * @see org.eclipse.ui.texteditor.AbstractDecoratedTextEditor#isPrefQuickDiffAlwaysOn()
+        */
+       protected boolean isPrefQuickDiffAlwaysOn() {
+               // reestablishes the behaviour from AbstractDecoratedTextEditor which was hacked by JavaEditor
+               // to disable the change bar for the class file (attached source) java editor.
+               IPreferenceStore store= getPreferenceStore();
+               return store.getBoolean(AbstractDecoratedTextEditorPreferenceConstants.QUICK_DIFF_ALWAYS_ON);
+       }
+       
+       /*
+        * @see org.eclipse.jdt.internal.ui.javaeditor.JavaEditor#getAdapter(java.lang.Class)
+        */
+       public Object getAdapter(Class required) {
+               if (SmartBackspaceManager.class.equals(required)) {
+                       if (getSourceViewer() instanceof JavaSourceViewer) {
+                               return ((JavaSourceViewer) getSourceViewer()).getBackspaceManager();
+                       }
+               }
+
+               return super.getAdapter(required);
+       }
+  /**
+        * Returns the mutex for the reconciler. See https://bugs.eclipse.org/bugs/show_bug.cgi?id=63898
+        * for a description of the problem.
+        * <p>
+        * TODO remove once the underlying problem is solved.
+        * </p>
+        * @return the lock reconcilers may use to synchronize on
+        */
+       public Object getReconcilerLock() {
+               return fReconcilerLock;
+       }
+       
 }
\ No newline at end of file