code-template needs new context type
[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpeclipse / phpeditor / PHPDocumentProvider.java
index 4db485f..599cd4f 100644 (file)
@@ -12,67 +12,1240 @@ Contributors:
     Klaus Hartlage - www.eclipseproject.de
 **********************************************************************/
 
-import net.sourceforge.phpeclipse.phpeditor.php.IPHPPartitionScannerConstants;
-import net.sourceforge.phpeclipse.phpeditor.php.PHPPartitionScanner;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
 
+import net.sourceforge.phpdt.core.ICompilationUnit;
+import net.sourceforge.phpdt.core.IProblemRequestor;
+import net.sourceforge.phpdt.core.JavaCore;
+import net.sourceforge.phpdt.core.JavaModelException;
+import net.sourceforge.phpdt.core.compiler.IProblem;
+import net.sourceforge.phpdt.internal.ui.text.java.IProblemRequestorExtension;
+import net.sourceforge.phpdt.internal.ui.text.spelling.SpellReconcileStrategy.SpellProblem;
+import net.sourceforge.phpdt.ui.PreferenceConstants;
+import net.sourceforge.phpeclipse.PHPeclipsePlugin;
+
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IMarker;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.resources.IResourceRuleFactory;
+import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.core.runtime.jobs.ISchedulingRule;
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.jface.text.Assert;
+import org.eclipse.jface.text.BadLocationException;
 import org.eclipse.jface.text.DefaultLineTracker;
+import org.eclipse.jface.text.Document;
 import org.eclipse.jface.text.IDocument;
-import org.eclipse.jface.text.IDocumentPartitioner;
 import org.eclipse.jface.text.ILineTracker;
-import org.eclipse.jface.text.rules.DefaultPartitioner;
-import org.eclipse.ui.editors.text.FileDocumentProvider;
+import org.eclipse.jface.text.ISynchronizable;
+import org.eclipse.jface.text.Position;
+import org.eclipse.jface.text.source.Annotation;
+import org.eclipse.jface.text.source.AnnotationModelEvent;
+import org.eclipse.jface.text.source.IAnnotationAccessExtension;
+import org.eclipse.jface.text.source.IAnnotationModel;
+import org.eclipse.jface.text.source.IAnnotationModelListener;
+import org.eclipse.jface.text.source.IAnnotationModelListenerExtension;
+import org.eclipse.jface.text.source.IAnnotationPresentation;
+import org.eclipse.jface.text.source.ImageUtilities;
+import org.eclipse.jface.util.IPropertyChangeListener;
+import org.eclipse.jface.util.ListenerList;
+import org.eclipse.jface.util.PropertyChangeEvent;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Canvas;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.ui.IFileEditorInput;
+import org.eclipse.ui.editors.text.EditorsUI;
+import org.eclipse.ui.editors.text.TextFileDocumentProvider;
+import org.eclipse.ui.texteditor.AbstractMarkerAnnotationModel;
+import org.eclipse.ui.texteditor.AnnotationPreference;
+import org.eclipse.ui.texteditor.AnnotationPreferenceLookup;
+import org.eclipse.ui.texteditor.MarkerAnnotation;
+import org.eclipse.ui.texteditor.MarkerUtilities;
+import org.eclipse.ui.texteditor.ResourceMarkerAnnotationModel;
 
 /** 
  * The PHPDocumentProvider provides the IDocuments used by java editors.
  */
 
-public class PHPDocumentProvider extends FileDocumentProvider {
+public class PHPDocumentProvider extends TextFileDocumentProvider {
+  /**
+                        * Here for visibility issues only.
+                        */
 
-  // private final static String[] TYPES= new String[] { PHPPartitionScanner.PHP, PHPPartitionScanner.JAVA_DOC, PHPPartitionScanner.JAVA_MULTILINE_COMMENT };
-  private final static String[] TYPES = new String[] { 
-       IPHPPartitionScannerConstants.PHP,
-       IPHPPartitionScannerConstants.PHP_MULTILINE_COMMENT,
-    IPHPPartitionScannerConstants.HTML, 
-       IPHPPartitionScannerConstants.HTML_MULTILINE_COMMENT,
-       IPHPPartitionScannerConstants.JAVASCRIPT,
-       IPHPPartitionScannerConstants.CSS};
+  /**
+                * Bundle of all required informations to allow working copy management. 
+                */
+       /**
+        * Bundle of all required informations to allow working copy management. 
+        */
+       static protected class CompilationUnitInfo extends FileInfo {
+               public ICompilationUnit fCopy;
+       }
+       
+       /**
+        * Annotation model dealing with java marker annotations and temporary problems.
+        * Also acts as problem requestor for its compilation unit. Initialiy inactive. Must explicitly be
+        * activated.
+        */
+       protected static class CompilationUnitAnnotationModel extends ResourceMarkerAnnotationModel implements IProblemRequestor, IProblemRequestorExtension {
+               
+               private static class ProblemRequestorState {
+                       boolean fInsideReportingSequence= false;
+                       List fReportedProblems;
+               }
+               
+               private ThreadLocal fProblemRequestorState= new ThreadLocal();
+               private int fStateCount= 0;
+               
+               private ICompilationUnit fCompilationUnit;
+               private List fGeneratedAnnotations;
+               private IProgressMonitor fProgressMonitor;
+               private boolean fIsActive= false;
+               
+               private ReverseMap fReverseMap= new ReverseMap();
+               private List fPreviouslyOverlaid= null; 
+               private List fCurrentlyOverlaid= new ArrayList();
 
-  private static PHPPartitionScanner fgScanner = null;
+               
+               public CompilationUnitAnnotationModel(IResource resource) {
+                       super(resource);
+               }
+               
+               public void setCompilationUnit(ICompilationUnit unit)  {
+                       fCompilationUnit= unit;
+               }
+               
+               protected MarkerAnnotation createMarkerAnnotation(IMarker marker) {
+                       String markerType= MarkerUtilities.getMarkerType(marker);
+                       if (markerType != null && markerType.startsWith(JavaMarkerAnnotation.JAVA_MARKER_TYPE_PREFIX))
+                               return new JavaMarkerAnnotation(marker);
+                       return super.createMarkerAnnotation(marker);
+               }
+               
+               /*
+                * @see org.eclipse.jface.text.source.AnnotationModel#createAnnotationModelEvent()
+                */
+               protected AnnotationModelEvent createAnnotationModelEvent() {
+                       return new CompilationUnitAnnotationModelEvent(this, getResource());
+               }
+               
+               protected Position createPositionFromProblem(IProblem problem) {
+                       int start= problem.getSourceStart();
+                       if (start < 0)
+                               return null;
+                               
+                       int length= problem.getSourceEnd() - problem.getSourceStart() + 1;
+                       if (length < 0)
+                               return null;
+                               
+                       return new Position(start, length);
+               }
+               
+               /*
+                * @see IProblemRequestor#beginReporting()
+                */
+               public void beginReporting() {
+                       ProblemRequestorState state= (ProblemRequestorState) fProblemRequestorState.get();
+                       if (state == null)
+                               internalBeginReporting(false);                          
+               }
+               
+               /*
+                * @see org.eclipse.jdt.internal.ui.text.java.IProblemRequestorExtension#beginReportingSequence()
+                */
+               public void beginReportingSequence() {
+                       ProblemRequestorState state= (ProblemRequestorState) fProblemRequestorState.get();
+                       if (state == null)
+                               internalBeginReporting(true);
+               }
+               
+               /**
+                * Sets up the infrastructure necessary for problem reporting.
+                * 
+                * @param insideReportingSequence <code>true</code> if this method
+                *            call is issued from inside a reporting sequence
+                */
+               private void internalBeginReporting(boolean insideReportingSequence) {
+                       if (fCompilationUnit != null) {
+               // && fCompilationUnit.getJavaProject().isOnClasspath(fCompilationUnit)) {
+                               ProblemRequestorState state= new ProblemRequestorState();
+                               state.fInsideReportingSequence= insideReportingSequence;
+                               state.fReportedProblems= new ArrayList();
+                               synchronized (getLockObject()) {
+                                       fProblemRequestorState.set(state);
+                                       ++fStateCount;
+                               }
+                       }
+               }
 
-  public PHPDocumentProvider() {
-    super();
+               /*
+                * @see IProblemRequestor#acceptProblem(IProblem)
+                */
+               public void acceptProblem(IProblem problem) {
+                       if (isActive()) {
+                               ProblemRequestorState state= (ProblemRequestorState) fProblemRequestorState.get();
+                               if (state != null)
+                                       state.fReportedProblems.add(problem);
+                       }
+               }
+               
+               /*
+                * @see IProblemRequestor#endReporting()
+                */
+               public void endReporting() {
+                       ProblemRequestorState state= (ProblemRequestorState) fProblemRequestorState.get();
+                       if (state != null && !state.fInsideReportingSequence)
+                               internalEndReporting(state);
+               }
+               
+               /*
+                * @see org.eclipse.jdt.internal.ui.text.java.IProblemRequestorExtension#endReportingSequence()
+                */
+               public void endReportingSequence() {
+                       ProblemRequestorState state= (ProblemRequestorState) fProblemRequestorState.get();
+                       if (state != null && state.fInsideReportingSequence)
+                               internalEndReporting(state);
+               }
+               
+               private void internalEndReporting(ProblemRequestorState state) {
+                       int stateCount= 0;
+                       synchronized(getLockObject()) {
+                               -- fStateCount;
+                               stateCount= fStateCount;
+                               fProblemRequestorState.set(null);
+                       }
+                       
+                       if (stateCount == 0 && isActive())
+                               reportProblems(state.fReportedProblems);
+               }
+               
+               /**
+                * Signals the end of problem reporting.
+                */
+               private void reportProblems(List reportedProblems) {
+                       if (fProgressMonitor != null && fProgressMonitor.isCanceled())
+                               return;
+                               
+                       boolean temporaryProblemsChanged= false;
+                       
+                       synchronized (getLockObject()) {
+                               
+                               boolean isCanceled= false;
+
+                               fPreviouslyOverlaid= fCurrentlyOverlaid;
+                               fCurrentlyOverlaid= new ArrayList();
+
+                               if (fGeneratedAnnotations.size() > 0) {
+                                       temporaryProblemsChanged= true; 
+                                       removeAnnotations(fGeneratedAnnotations, false, true);
+                                       fGeneratedAnnotations.clear();
+                               }
+                               
+                               if (reportedProblems != null && reportedProblems.size() > 0) {
+                                                                                       
+                                       Iterator e= reportedProblems.iterator();
+                                       while (e.hasNext()) {
+                                               
+                                               if (fProgressMonitor != null && fProgressMonitor.isCanceled()) {
+                                                       isCanceled= true;
+                                                       break;
+                                               }
+                                                       
+                                               IProblem problem= (IProblem) e.next();
+                                               Position position= createPositionFromProblem(problem);
+                                               if (position != null) {
+                                                       
+                                                       try {
+                                                               ProblemAnnotation annotation= new ProblemAnnotation(problem, fCompilationUnit);
+                                                               overlayMarkers(position, annotation);                                                           
+                                                               addAnnotation(annotation, position, false);
+                                                               fGeneratedAnnotations.add(annotation);
+                                                       
+                                                               temporaryProblemsChanged= true;
+                                                       } catch (BadLocationException x) {
+                                                               // ignore invalid position
+                                                       }
+                                               }
+                                       }
+                               }
+                               
+                               removeMarkerOverlays(isCanceled);
+                               fPreviouslyOverlaid= null;
+                       }
+                               
+                       if (temporaryProblemsChanged)
+                               fireModelChanged();
+               }
+
+               private void removeMarkerOverlays(boolean isCanceled) {
+                       if (isCanceled) {
+                               fCurrentlyOverlaid.addAll(fPreviouslyOverlaid);
+                       } else if (fPreviouslyOverlaid != null) {
+                               Iterator e= fPreviouslyOverlaid.iterator();
+                               while (e.hasNext()) {
+                                       JavaMarkerAnnotation annotation= (JavaMarkerAnnotation) e.next();
+                                       annotation.setOverlay(null);
+                               }
+                       }                       
+               }
+               
+               /**
+                * Overlays value with problem annotation.
+                * @param problemAnnotation
+                */
+               private void setOverlay(Object value, ProblemAnnotation problemAnnotation) {
+                       if (value instanceof  JavaMarkerAnnotation) {
+                               JavaMarkerAnnotation annotation= (JavaMarkerAnnotation) value;
+                               if (annotation.isProblem()) {
+                                       annotation.setOverlay(problemAnnotation);
+                                       fPreviouslyOverlaid.remove(annotation);
+                                       fCurrentlyOverlaid.add(annotation);
+                               }
+                       } else {
+                       }
+               }
+               
+               private void  overlayMarkers(Position position, ProblemAnnotation problemAnnotation) {
+                       Object value= getAnnotations(position);
+                       if (value instanceof List) {
+                               List list= (List) value;
+                               for (Iterator e = list.iterator(); e.hasNext();)
+                                       setOverlay(e.next(), problemAnnotation);
+                       } else {
+                               setOverlay(value, problemAnnotation);
+                       }
+               }
+               
+               /**
+                * Tells this annotation model to collect temporary problems from now on.
+                */
+               private void startCollectingProblems() {
+                       fGeneratedAnnotations= new ArrayList();  
+               }
+               
+               /**
+                * Tells this annotation model to no longer collect temporary problems.
+                */
+               private void stopCollectingProblems() {
+                       if (fGeneratedAnnotations != null)
+                               removeAnnotations(fGeneratedAnnotations, true, true);
+                       fGeneratedAnnotations= null;
+               }
+               
+               /*
+                * @see IProblemRequestor#isActive()
+                */
+               public boolean isActive() {
+                       return fIsActive;
+               }
+               
+               /*
+                * @see IProblemRequestorExtension#setProgressMonitor(IProgressMonitor)
+                */
+               public void setProgressMonitor(IProgressMonitor monitor) {
+                       fProgressMonitor= monitor;
+               }
+               
+               /*
+                * @see IProblemRequestorExtension#setIsActive(boolean)
+                */
+               public void setIsActive(boolean isActive) {
+                       if (fIsActive != isActive) {
+                               fIsActive= isActive;
+                               if (fIsActive)
+                                       startCollectingProblems();
+                               else
+                                       stopCollectingProblems();
+                       }
+               }
+               
+               private Object getAnnotations(Position position) {
+                       return fReverseMap.get(position);
+               }
+                                       
+               /*
+                * @see AnnotationModel#addAnnotation(Annotation, Position, boolean)
+                */
+               protected void addAnnotation(Annotation annotation, Position position, boolean fireModelChanged) throws BadLocationException {                          
+                       super.addAnnotation(annotation, position, fireModelChanged);
+
+                       Object cached= fReverseMap.get(position);
+                       if (cached == null)
+                               fReverseMap.put(position, annotation);
+                       else if (cached instanceof List) {
+                               List list= (List) cached;
+                               list.add(annotation);
+                       } else if (cached instanceof Annotation) {
+                               List list= new ArrayList(2);
+                               list.add(cached);
+                               list.add(annotation);
+                               fReverseMap.put(position, list);
+                       }
+               }
+               
+               /*
+                * @see AnnotationModel#removeAllAnnotations(boolean)
+                */
+               protected void removeAllAnnotations(boolean fireModelChanged) {
+                       super.removeAllAnnotations(fireModelChanged);
+                       fReverseMap.clear();
+               }
+               
+               /*
+                * @see AnnotationModel#removeAnnotation(Annotation, boolean)
+                */
+               protected void removeAnnotation(Annotation annotation, boolean fireModelChanged) {
+                       Position position= getPosition(annotation);
+                       Object cached= fReverseMap.get(position);
+                       if (cached instanceof List) {
+                               List list= (List) cached;
+                               list.remove(annotation);
+                               if (list.size() == 1) {
+                                       fReverseMap.put(position, list.get(0));
+                                       list.clear();
+                               }
+                       } else if (cached instanceof Annotation) {
+                               fReverseMap.remove(position);
+                       }
+                       super.removeAnnotation(annotation, fireModelChanged);
+               }
+       }
+  
+   
+  
+  protected static class GlobalAnnotationModelListener implements IAnnotationModelListener, IAnnotationModelListenerExtension {
+
+    private ListenerList fListenerList;
+
+    public GlobalAnnotationModelListener() {
+      fListenerList = new ListenerList();
+    }
+
+    public void addListener(IAnnotationModelListener listener) {
+      fListenerList.add(listener);
+    }
+
+    /**
+     * @see IAnnotationModelListenerExtension#modelChanged(AnnotationModelEvent)
+     */
+    public void modelChanged(AnnotationModelEvent event) {
+      Object[] listeners = fListenerList.getListeners();
+      for (int i = 0; i < listeners.length; i++) {
+        Object curr = listeners[i];
+        if (curr instanceof IAnnotationModelListenerExtension) {
+          ((IAnnotationModelListenerExtension) curr).modelChanged(event);
+        }
+      }
+    }
+
+    /**
+     * @see IAnnotationModelListener#modelChanged(IAnnotationModel)
+     */
+    public void modelChanged(IAnnotationModel model) {
+      Object[] listeners = fListenerList.getListeners();
+      for (int i = 0; i < listeners.length; i++) {
+        ((IAnnotationModelListener) listeners[i]).modelChanged(model);
+      }
+    }
+
+    public void removeListener(IAnnotationModelListener listener) {
+      fListenerList.remove(listener);
+    }
   }
 
-  /* (non-Javadoc)
-   * Method declared on AbstractDocumentProvider
-   */
-  protected IDocument createDocument(Object element) throws CoreException {
-    IDocument document = super.createDocument(element);
-    if (document != null) {
-      IDocumentPartitioner partitioner = createPHPPartitioner();
-      document.setDocumentPartitioner(partitioner);
-      partitioner.connect(document);
-    }
-    return document;
+  /**
+        * Annotation representating an <code>IProblem</code>.
+        */
+       static protected class ProblemAnnotation extends Annotation implements IJavaAnnotation, IAnnotationPresentation {
+               
+               private static final String SPELLING_ANNOTATION_TYPE= "org.eclipse.ui.workbench.texteditor.spelling";
+
+               //XXX: To be fully correct these constants should be non-static
+               /** 
+                * The layer in which task problem annotations are located.
+                */
+               private static final int TASK_LAYER;
+               /** 
+                * The layer in which info problem annotations are located.
+                */
+               private static final int INFO_LAYER;
+               /** 
+                * The layer in which warning problem annotations representing are located.
+                */
+               private static final int WARNING_LAYER;
+               /** 
+                * The layer in which error problem annotations representing are located.
+                */
+               private static final int ERROR_LAYER;
+               
+               static {
+                       AnnotationPreferenceLookup lookup= EditorsUI.getAnnotationPreferenceLookup();
+                       TASK_LAYER= computeLayer("org.eclipse.ui.workbench.texteditor.task", lookup); //$NON-NLS-1$
+                       INFO_LAYER= computeLayer("net.sourceforge.phpdt.ui.info", lookup); //$NON-NLS-1$
+                       WARNING_LAYER= computeLayer("net.sourceforge.phpdt.ui.warning", lookup); //$NON-NLS-1$
+                       ERROR_LAYER= computeLayer("net.sourceforge.phpdt.ui.error", lookup); //$NON-NLS-1$
+               }
+               
+               private static int computeLayer(String annotationType, AnnotationPreferenceLookup lookup) {
+                       Annotation annotation= new Annotation(annotationType, false, null);
+                       AnnotationPreference preference= lookup.getAnnotationPreference(annotation);
+                       if (preference != null)
+                               return preference.getPresentationLayer() + 1;
+                       else
+                               return IAnnotationAccessExtension.DEFAULT_LAYER + 1;
+               }
+
+//             private static Image fgQuickFixImage;
+//             private static Image fgQuickFixErrorImage;
+//             private static boolean fgQuickFixImagesInitialized= false;
+               
+               private ICompilationUnit fCompilationUnit;
+               private List fOverlaids;
+               private IProblem fProblem;
+               private Image fImage;
+               private boolean fQuickFixImagesInitialized= false;
+               private int fLayer= IAnnotationAccessExtension.DEFAULT_LAYER;
+               
+               public ProblemAnnotation(IProblem problem, ICompilationUnit cu) {
+                       
+                       fProblem= problem;
+                       fCompilationUnit= cu;
+                       
+                       if (SpellProblem.Spelling == fProblem.getID()) {
+                               setType(SPELLING_ANNOTATION_TYPE);
+                               fLayer= WARNING_LAYER;
+                       } else if (IProblem.Task == fProblem.getID()) {
+                               setType(JavaMarkerAnnotation.TASK_ANNOTATION_TYPE);
+                               fLayer= TASK_LAYER;
+                       } else if (fProblem.isWarning()) {
+                               setType(JavaMarkerAnnotation.WARNING_ANNOTATION_TYPE);
+                               fLayer= WARNING_LAYER;
+                       } else if (fProblem.isError()) {
+                               setType(JavaMarkerAnnotation.ERROR_ANNOTATION_TYPE);
+                               fLayer= ERROR_LAYER;
+                       } else {
+                               setType(JavaMarkerAnnotation.INFO_ANNOTATION_TYPE);
+                               fLayer= INFO_LAYER;
+                       }
+               }
+               
+               /*
+                * @see org.eclipse.jface.text.source.IAnnotationPresentation#getLayer()
+                */
+               public int getLayer() {
+                       return fLayer;
+               }
+               
+               private void initializeImages() {
+                       // http://bugs.eclipse.org/bugs/show_bug.cgi?id=18936
+//                     if (!fQuickFixImagesInitialized) {
+//                             if (isProblem() && indicateQuixFixableProblems() && JavaCorrectionProcessor.hasCorrections(this)) { // no light bulb for tasks
+//                                     if (!fgQuickFixImagesInitialized) {
+//                                             fgQuickFixImage= JavaPluginImages.get(JavaPluginImages.IMG_OBJS_FIXABLE_PROBLEM);
+//                                             fgQuickFixErrorImage= JavaPluginImages.get(JavaPluginImages.IMG_OBJS_FIXABLE_ERROR);
+//                                             fgQuickFixImagesInitialized= true;
+//                                     }
+//                                     if (JavaMarkerAnnotation.ERROR_ANNOTATION_TYPE.equals(getType()))
+//                                             fImage= fgQuickFixErrorImage;
+//                                     else
+//                                             fImage= fgQuickFixImage;
+//                             }
+//                             fQuickFixImagesInitialized= true;
+//                     }
+               }
+
+               private boolean indicateQuixFixableProblems() {
+                       return PreferenceConstants.getPreferenceStore().getBoolean(PreferenceConstants.EDITOR_CORRECTION_INDICATION);
+               }
+               
+               /*
+                * @see Annotation#paint
+                */
+               public void paint(GC gc, Canvas canvas, Rectangle r) {
+                       initializeImages();
+                       if (fImage != null)
+                               ImageUtilities.drawImage(fImage, gc, canvas, r, SWT.CENTER, SWT.TOP);
+               }
+               /*
+                * @see IJavaAnnotation#getImage(Display)
+                */
+               public Image getImage(Display display) {
+                       initializeImages();
+                       return fImage;
+               }
+               
+               /*
+                * @see IJavaAnnotation#getMessage()
+                */
+               public String getText() {
+                       return fProblem.getMessage();
+               }
+               
+               /*
+                * @see IJavaAnnotation#getArguments()
+                */
+               public String[] getArguments() {
+                       return isProblem() ? fProblem.getArguments() : null;
+               }
+
+               /*
+                * @see IJavaAnnotation#getId()
+                */
+               public int getId() {
+                       return fProblem.getID();
+               }
+
+               /*
+                * @see IJavaAnnotation#isProblem()
+                */
+               public boolean isProblem() {
+                       String type= getType();
+                       return  JavaMarkerAnnotation.WARNING_ANNOTATION_TYPE.equals(type)  || 
+                                               JavaMarkerAnnotation.ERROR_ANNOTATION_TYPE.equals(type) ||
+                                               SPELLING_ANNOTATION_TYPE.equals(type);
+               }
+               
+               /*
+                * @see IJavaAnnotation#hasOverlay()
+                */
+               public boolean hasOverlay() {
+                       return false;
+               }
+               
+               /*
+                * @see org.eclipse.jdt.internal.ui.javaeditor.IJavaAnnotation#getOverlay()
+                */
+               public IJavaAnnotation getOverlay() {
+                       return null;
+               }
+               
+               /*
+                * @see IJavaAnnotation#addOverlaid(IJavaAnnotation)
+                */
+               public void addOverlaid(IJavaAnnotation annotation) {
+                       if (fOverlaids == null)
+                               fOverlaids= new ArrayList(1);
+                       fOverlaids.add(annotation);
+               }
+
+               /*
+                * @see IJavaAnnotation#removeOverlaid(IJavaAnnotation)
+                */
+               public void removeOverlaid(IJavaAnnotation annotation) {
+                       if (fOverlaids != null) {
+                               fOverlaids.remove(annotation);
+                               if (fOverlaids.size() == 0)
+                                       fOverlaids= null;
+                       }
+               }
+               
+               /*
+                * @see IJavaAnnotation#getOverlaidIterator()
+                */
+               public Iterator getOverlaidIterator() {
+                       if (fOverlaids != null)
+                               return fOverlaids.iterator();
+                       return null;
+               }
+               
+               /*
+                * @see org.eclipse.jdt.internal.ui.javaeditor.IJavaAnnotation#getCompilationUnit()
+                */
+               public ICompilationUnit getCompilationUnit() {
+                       return fCompilationUnit;
+               }
+       }
+       
+  /**
+                * Internal structure for mapping positions to some value. 
+                * The reason for this specific structure is that positions can
+                * change over time. Thus a lookup is based on value and not
+                * on hash value.
+                */
+  protected static class ReverseMap {
+
+    static class Entry {
+      Position fPosition;
+      Object fValue;
+    }
+    private int fAnchor = 0;
+
+    private List fList = new ArrayList(2);
+
+    public ReverseMap() {
+    }
+
+    public void clear() {
+      fList.clear();
+    }
+
+    public Object get(Position position) {
+
+      Entry entry;
+
+      // behind anchor
+      int length = fList.size();
+      for (int i = fAnchor; i < length; i++) {
+        entry = (Entry) fList.get(i);
+        if (entry.fPosition.equals(position)) {
+          fAnchor = i;
+          return entry.fValue;
+        }
+      }
+
+      // before anchor
+      for (int i = 0; i < fAnchor; i++) {
+        entry = (Entry) fList.get(i);
+        if (entry.fPosition.equals(position)) {
+          fAnchor = i;
+          return entry.fValue;
+        }
+      }
+
+      return null;
+    }
+
+    private int getIndex(Position position) {
+      Entry entry;
+      int length = fList.size();
+      for (int i = 0; i < length; i++) {
+        entry = (Entry) fList.get(i);
+        if (entry.fPosition.equals(position))
+          return i;
+      }
+      return -1;
+    }
+
+    public void put(Position position, Object value) {
+      int index = getIndex(position);
+      if (index == -1) {
+        Entry entry = new Entry();
+        entry.fPosition = position;
+        entry.fValue = value;
+        fList.add(entry);
+      } else {
+        Entry entry = (Entry) fList.get(index);
+        entry.fValue = value;
+      }
+    }
+
+    public void remove(Position position) {
+      int index = getIndex(position);
+      if (index > -1)
+        fList.remove(index);
+    }
+  }
+
+  /**
+                * Document that can also be used by a background reconciler.
+                */
+  protected static class PartiallySynchronizedDocument extends Document {
+
+    /*
+     * @see IDocumentExtension#startSequentialRewrite(boolean)
+     */
+    synchronized public void startSequentialRewrite(boolean normalized) {
+      super.startSequentialRewrite(normalized);
+    }
+
+    /*
+     * @see IDocumentExtension#stopSequentialRewrite()
+     */
+    synchronized public void stopSequentialRewrite() {
+      super.stopSequentialRewrite();
+    }
+
+    /*
+     * @see IDocument#get()
+     */
+    synchronized public String get() {
+      return super.get();
+    }
+
+    /*
+     * @see IDocument#get(int, int)
+     */
+    synchronized public String get(int offset, int length) throws BadLocationException {
+      return super.get(offset, length);
+    }
+
+    /*
+     * @see IDocument#getChar(int)
+     */
+    synchronized public char getChar(int offset) throws BadLocationException {
+      return super.getChar(offset);
+    }
+
+    /*
+     * @see IDocument#replace(int, int, String)
+     */
+    synchronized public void replace(int offset, int length, String text) throws BadLocationException {
+      super.replace(offset, length, text);
+    }
+
+    /*
+     * @see IDocument#set(String)
+     */
+    synchronized public void set(String text) {
+      super.set(text);
+    }
+  };
+  //
+  //  private static PHPPartitionScanner HTML_PARTITION_SCANNER = null;
+  //
+  //  private static PHPPartitionScanner PHP_PARTITION_SCANNER = null;
+  //  private static PHPPartitionScanner SMARTY_PARTITION_SCANNER = null;
+  //
+  //  // private final static String[] TYPES= new String[] { PHPPartitionScanner.PHP, PHPPartitionScanner.JAVA_DOC, PHPPartitionScanner.JAVA_MULTILINE_COMMENT };
+  //  private final static String[] TYPES =
+  //    new String[] {
+  //      IPHPPartitionScannerConstants.PHP,
+  //      IPHPPartitionScannerConstants.PHP_MULTILINE_COMMENT,
+  //      IPHPPartitionScannerConstants.HTML,
+  //      IPHPPartitionScannerConstants.HTML_MULTILINE_COMMENT,
+  //      IPHPPartitionScannerConstants.JAVASCRIPT,
+  //      IPHPPartitionScannerConstants.CSS,
+  //      IPHPPartitionScannerConstants.SMARTY,
+  //      IPHPPartitionScannerConstants.SMARTY_MULTILINE_COMMENT };
+  //  private static PHPPartitionScanner XML_PARTITION_SCANNER = null;
+
+  /* Preference key for temporary problems */
+  private final static String HANDLE_TEMPORARY_PROBLEMS = PreferenceConstants.EDITOR_EVALUTE_TEMPORARY_PROBLEMS;
+
+  /** Indicates whether the save has been initialized by this provider */
+  private boolean fIsAboutToSave = false;
+  /** The save policy used by this provider */
+  private ISavePolicy fSavePolicy;
+  /** Internal property changed listener */
+  private IPropertyChangeListener fPropertyListener;
+
+  /** annotation model listener added to all created CU annotation models */
+  private GlobalAnnotationModelListener fGlobalAnnotationModelListener;
+
+  public PHPDocumentProvider() {
+       setParentDocumentProvider(new TextFileDocumentProvider(new JavaStorageDocumentProvider()));             
+       
+       fPropertyListener= new IPropertyChangeListener() {
+               public void propertyChange(PropertyChangeEvent event) {
+                       if (HANDLE_TEMPORARY_PROBLEMS.equals(event.getProperty()))
+                               enableHandlingTemporaryProblems();
+               }
+       };
+       fGlobalAnnotationModelListener= new GlobalAnnotationModelListener();
+       PHPeclipsePlugin.getDefault().getPreferenceStore().addPropertyChangeListener(fPropertyListener);
+
   }
 
   /**
-   * Return a partitioner for .php files.
+   * Sets the document provider's save policy.
    */
-  private IDocumentPartitioner createPHPPartitioner() {
-    return new DefaultPartitioner(getPHPPartitionScanner(), TYPES);
+  public void setSavePolicy(ISavePolicy savePolicy) {
+    fSavePolicy = savePolicy;
   }
 
   /**
-   * Return a scanner for creating java partitions.
+   * Creates a compilation unit from the given file.
+   * 
+   * @param file the file from which to create the compilation unit
    */
-  private PHPPartitionScanner getPHPPartitionScanner() {
-    if (fgScanner == null)
-      fgScanner = new PHPPartitionScanner();
-    return fgScanner;
+  protected ICompilationUnit createCompilationUnit(IFile file) {
+    Object element = JavaCore.create(file);
+    if (element instanceof ICompilationUnit)
+      return (ICompilationUnit) element;
+    return null;
   }
   
+
+  /*
+        * @see org.eclipse.ui.editors.text.TextFileDocumentProvider#createEmptyFileInfo()
+        */
+       protected FileInfo createEmptyFileInfo() {
+               return new CompilationUnitInfo();
+       }
+       /*
+        * @see org.eclipse.ui.editors.text.TextFileDocumentProvider#createAnnotationModel(org.eclipse.core.resources.IFile)
+        */
+       protected IAnnotationModel createAnnotationModel(IFile file) {
+               return new CompilationUnitAnnotationModel(file);
+       }
+  /*
+        * @see AbstractDocumentProvider#createElementInfo(Object)
+        */
+//  protected ElementInfo createElementInfo(Object element) throws CoreException {
+//
+//    if (!(element instanceof IFileEditorInput))
+//      return super.createElementInfo(element);
+//
+//    IFileEditorInput input = (IFileEditorInput) element;
+//    ICompilationUnit original = createCompilationUnit(input.getFile());
+//    if (original != null) {
+//
+//      try {
+//
+//        try {
+//          refreshFile(input.getFile());
+//        } catch (CoreException x) {
+//          handleCoreException(x, PHPEditorMessages.getString("PHPDocumentProvider.error.createElementInfo")); //$NON-NLS-1$
+//        }
+//
+//        IAnnotationModel m = createCompilationUnitAnnotationModel(input);
+//        IProblemRequestor r = m instanceof IProblemRequestor ? (IProblemRequestor) m : null;
+//        ICompilationUnit c = (ICompilationUnit) original.getSharedWorkingCopy(getProgressMonitor(), fBufferFactory, r);
+//
+//        DocumentAdapter a = null;
+//        try {
+//          a = (DocumentAdapter) c.getBuffer();
+//        } catch (ClassCastException x) {
+//          IStatus status = new Status(IStatus.ERROR, PHPeclipsePlugin.PLUGIN_ID, PHPStatusConstants.TEMPLATE_IO_EXCEPTION, "Shared working copy has wrong buffer", x); //$NON-NLS-1$
+//          throw new CoreException(status);
+//        }
+//
+//        _FileSynchronizer f = new _FileSynchronizer(input);
+//        f.install();
+//
+//        CompilationUnitInfo info = new CompilationUnitInfo(a.getDocument(), m, f, c);
+//        info.setModificationStamp(computeModificationStamp(input.getFile()));
+//        info.fStatus = a.getStatus();
+//        info.fEncoding = getPersistedEncoding(input);
+//
+//        if (r instanceof IProblemRequestorExtension) {
+//          IProblemRequestorExtension extension = (IProblemRequestorExtension) r;
+//          extension.setIsActive(isHandlingTemporaryProblems());
+//        }
+//        m.addAnnotationModelListener(fGlobalAnnotationModelListener);
+//
+//        return info;
+//
+//      } catch (JavaModelException x) {
+//        throw new CoreException(x.getStatus());
+//      }
+//    } else {
+//      return super.createElementInfo(element);
+//    }
+//  }
+
+  /*
+   * @see AbstractDocumentProvider#disposeElementInfo(Object, ElementInfo)
+   */
+//  protected void disposeElementInfo(Object element, ElementInfo info) {
+//
+//    if (info instanceof CompilationUnitInfo) {
+//      CompilationUnitInfo cuInfo = (CompilationUnitInfo) info;
+//      cuInfo.fCopy.destroy();
+//      cuInfo.fModel.removeAnnotationModelListener(fGlobalAnnotationModelListener);
+//    }
+//
+//    super.disposeElementInfo(element, info);
+//  }
+
+  /*
+        * @see AbstractDocumentProvider#doSaveDocument(IProgressMonitor, Object, IDocument, boolean)
+        */
+//  protected void doSaveDocument(IProgressMonitor monitor, Object element, IDocument document, boolean overwrite)
+//    throws CoreException {
+//
+//    ElementInfo elementInfo = getElementInfo(element);
+//    if (elementInfo instanceof CompilationUnitInfo) {
+//      CompilationUnitInfo info = (CompilationUnitInfo) elementInfo;
+//
+//      // update structure, assumes lock on info.fCopy
+//      info.fCopy.reconcile();
+//
+//      ICompilationUnit original = (ICompilationUnit) info.fCopy.getOriginalElement();
+//      IResource resource = original.getResource();
+//
+//      if (resource == null) {
+//        // underlying resource has been deleted, just recreate file, ignore the rest
+//        super.doSaveDocument(monitor, element, document, overwrite);
+//        return;
+//      }
+//
+//      if (resource != null && !overwrite)
+//        checkSynchronizationState(info.fModificationStamp, resource);
+//
+//      if (fSavePolicy != null)
+//        fSavePolicy.preSave(info.fCopy);
+//
+//      // inform about the upcoming content change
+//      fireElementStateChanging(element);
+//      try {
+//        fIsAboutToSave = true;
+//        // commit working copy
+//        info.fCopy.commit(overwrite, monitor);
+//      } catch (CoreException x) {
+//        // inform about the failure
+//        fireElementStateChangeFailed(element);
+//        throw x;
+//      } catch (RuntimeException x) {
+//        // inform about the failure
+//        fireElementStateChangeFailed(element);
+//        throw x;
+//      } finally {
+//        fIsAboutToSave = false;
+//      }
+//
+//      // If here, the dirty state of the editor will change to "not dirty".
+//      // Thus, the state changing flag will be reset.
+//
+//      AbstractMarkerAnnotationModel model = (AbstractMarkerAnnotationModel) info.fModel;
+//      model.updateMarkers(info.fDocument);
+//
+//      if (resource != null)
+//        info.setModificationStamp(computeModificationStamp(resource));
+//
+//      if (fSavePolicy != null) {
+//        ICompilationUnit unit = fSavePolicy.postSave(original);
+//        if (unit != null) {
+//          IResource r = unit.getResource();
+//          IMarker[] markers = r.findMarkers(IMarker.MARKER, true, IResource.DEPTH_ZERO);
+//          if (markers != null && markers.length > 0) {
+//            for (int i = 0; i < markers.length; i++)
+//              model.updateMarker(markers[i], info.fDocument, null);
+//          }
+//        }
+//      }
+//
+//    } else {
+//      super.doSaveDocument(monitor, element, document, overwrite);
+//    }
+//  }
+
+       /*
+        * @see org.eclipse.ui.editors.text.TextFileDocumentProvider#createFileInfo(java.lang.Object)
+        */
+       protected FileInfo createFileInfo(Object element) throws CoreException {
+               if (!(element instanceof IFileEditorInput))
+                       return null;
+                       
+               IFileEditorInput input= (IFileEditorInput) element;
+               ICompilationUnit original= createCompilationUnit(input.getFile());
+               if (original == null)
+                       return null;
+               
+               FileInfo info= super.createFileInfo(element);
+               if (!(info instanceof CompilationUnitInfo))
+                       return null;
+                       
+               CompilationUnitInfo cuInfo= (CompilationUnitInfo) info;
+               setUpSynchronization(cuInfo);
+                       
+               IProblemRequestor requestor= cuInfo.fModel instanceof IProblemRequestor ? (IProblemRequestor) cuInfo.fModel : null;
+
+               original.becomeWorkingCopy(requestor, getProgressMonitor());
+               cuInfo.fCopy= original;
+               
+               if (cuInfo.fModel instanceof CompilationUnitAnnotationModel)   {
+                       CompilationUnitAnnotationModel model= (CompilationUnitAnnotationModel) cuInfo.fModel;
+                       model.setCompilationUnit(cuInfo.fCopy);
+               } 
+               
+               if (cuInfo.fModel != null)
+                       cuInfo.fModel.addAnnotationModelListener(fGlobalAnnotationModelListener);
+               
+               if (requestor instanceof IProblemRequestorExtension) {
+                       IProblemRequestorExtension extension= (IProblemRequestorExtension) requestor;
+                       extension.setIsActive(isHandlingTemporaryProblems());
+               }
+               
+               return cuInfo;
+       }
+       
+    private void setUpSynchronization(CompilationUnitInfo cuInfo) {
+        IDocument document= cuInfo.fTextFileBuffer.getDocument();
+        IAnnotationModel model= cuInfo.fModel;
+        
+        if (document instanceof ISynchronizable && model instanceof ISynchronizable) {
+            Object lock= ((ISynchronizable) document).getLockObject();
+            ((ISynchronizable) model).setLockObject(lock);
+        }
+    }
+    
+    /*
+        * @see org.eclipse.ui.editors.text.TextFileDocumentProvider#disposeFileInfo(java.lang.Object, org.eclipse.ui.editors.text.TextFileDocumentProvider.FileInfo)
+        */
+       protected void disposeFileInfo(Object element, FileInfo info) {
+               if (info instanceof CompilationUnitInfo) {
+                       CompilationUnitInfo cuInfo= (CompilationUnitInfo) info;
+                       
+                       try  {
+                           cuInfo.fCopy.discardWorkingCopy();
+                       } catch (JavaModelException x)  {
+                           handleCoreException(x, x.getMessage());
+                       }                       
+                       
+                       if (cuInfo.fModel != null)
+                               cuInfo.fModel.removeAnnotationModelListener(fGlobalAnnotationModelListener);
+               }
+               super.disposeFileInfo(element, info);
+       }
+       
+  protected void commitWorkingCopy(IProgressMonitor monitor, Object element, CompilationUnitInfo info, boolean overwrite) throws CoreException {
+       
+       synchronized (info.fCopy) {
+               info.fCopy.reconcile();
+       }
+       
+       IDocument document= info.fTextFileBuffer.getDocument();
+       IResource resource= info.fCopy.getResource();
+       
+       Assert.isTrue(resource instanceof IFile);
+       if (!resource.exists()) {
+               // underlying resource has been deleted, just recreate file, ignore the rest
+               createFileFromDocument(monitor, (IFile) resource, document);
+               return;
+       }
+       
+       if (fSavePolicy != null)
+               fSavePolicy.preSave(info.fCopy);
+       
+       try {
+               
+               fIsAboutToSave= true;
+               info.fCopy.commitWorkingCopy(overwrite, monitor);
+                       
+       } catch (CoreException x) {
+               // inform about the failure
+               fireElementStateChangeFailed(element);
+               throw x;
+       } catch (RuntimeException x) {
+               // inform about the failure
+               fireElementStateChangeFailed(element);
+               throw x;
+       } finally {
+               fIsAboutToSave= false;
+       }
+       
+       // If here, the dirty state of the editor will change to "not dirty".
+       // Thus, the state changing flag will be reset.
+       if (info.fModel instanceof AbstractMarkerAnnotationModel) {
+               AbstractMarkerAnnotationModel model= (AbstractMarkerAnnotationModel) info.fModel;
+               model.updateMarkers(document);
+       }
+       
+       if (fSavePolicy != null) {
+               ICompilationUnit unit= fSavePolicy.postSave(info.fCopy);
+               if (unit != null && info.fModel instanceof AbstractMarkerAnnotationModel) {
+                       IResource r= unit.getResource();
+                       IMarker[] markers= r.findMarkers(IMarker.MARKER, true, IResource.DEPTH_ZERO);
+                       if (markers != null && markers.length > 0) {
+                               AbstractMarkerAnnotationModel model= (AbstractMarkerAnnotationModel) info.fModel;                                               
+                               for (int i= 0; i < markers.length; i++)
+                                       model.updateMarker(document, markers[i], null);
+                       }
+               }
+       }
+}
+
+/*
+ * @see org.eclipse.ui.editors.text.TextFileDocumentProvider#createSaveOperation(java.lang.Object, org.eclipse.jface.text.IDocument, boolean)
+ */
+protected DocumentProviderOperation createSaveOperation(final Object element, final IDocument document, final boolean overwrite) throws CoreException {
+       final FileInfo info= getFileInfo(element);
+       if (info instanceof CompilationUnitInfo) {
+               return new DocumentProviderOperation() {
+                       /*
+                        * @see org.eclipse.ui.editors.text.TextFileDocumentProvider.DocumentProviderOperation#execute(org.eclipse.core.runtime.IProgressMonitor)
+                        */
+                       protected void execute(IProgressMonitor monitor) throws CoreException {
+                               commitWorkingCopy(monitor, element, (CompilationUnitInfo) info, overwrite);
+                       }
+                       /*
+                        * @see org.eclipse.ui.editors.text.TextFileDocumentProvider.DocumentProviderOperation#getSchedulingRule()
+                        */
+                       public ISchedulingRule getSchedulingRule() {
+                               if (info.fElement instanceof IFileEditorInput) {
+                                       IFile file= ((IFileEditorInput) info.fElement).getFile();
+                                       IResourceRuleFactory ruleFactory= ResourcesPlugin.getWorkspace().getRuleFactory();
+                                       if (file == null || !file.exists())
+                                               return ruleFactory.createRule(file);
+                                       else
+                                               return ruleFactory.modifyRule(file);
+                               } else
+                                       return null;
+                       }
+               };
+       }
+       return null;
+}
+
+  /* (non-Javadoc)
+   * Method declared on AbstractDocumentProvider
+   */
+//  protected IDocument createDocument(Object element) throws CoreException {
+//    if (element instanceof IEditorInput) {
+//      Document document = new PartiallySynchronizedDocument();
+//      if (setDocumentContent(document, (IEditorInput) element, getEncoding(element))) {
+//        initializeDocument(document, (IEditorInput) element);
+//
+//        //   
+//        //    IDocument document = super.createDocument(element);
+//        //    if (document != null) {
+//        //        IDocumentPartitioner partitioner = null;
+//        //        if (element instanceof FileEditorInput) {
+//        //          IFile file = (IFile) ((FileEditorInput) element).getAdapter(IFile.class);
+//        //          String filename = file.getLocation().toString();
+//        //          String extension = filename.substring(filename.lastIndexOf("."), filename.length());
+//        //          //   System.out.println(extension);
+//        //          if (extension.equalsIgnoreCase(".html") || extension.equalsIgnoreCase(".htm")) {
+//        //            // html
+//        //            partitioner = createHTMLPartitioner();
+//        //          } else if (extension.equalsIgnoreCase(".xml")) {
+//        //            // xml
+//        //            partitioner = createXMLPartitioner();
+//        //          } else if (extension.equalsIgnoreCase(".js")) {
+//        //            // javascript
+//        //            partitioner = createJavaScriptPartitioner();
+//        //          } else if (extension.equalsIgnoreCase(".css")) {
+//        //            // cascading style sheets
+//        //            partitioner = createCSSPartitioner();
+//        //          } else if (extension.equalsIgnoreCase(".tpl")) {
+//        //            // smarty ?
+//        //            partitioner = createSmartyPartitioner();
+//        //          } else if (extension.equalsIgnoreCase(".inc")) {
+//        //            // php include files ?
+//        //            partitioner = createIncludePartitioner();
+//        //          }
+//        //        }
+//        //
+//        //        if (partitioner == null) {
+//        //          partitioner = createPHPPartitioner();
+//        //        }
+//        //        document.setDocumentPartitioner(partitioner);
+//        //        partitioner.connect(document);
+//      }
+//      return document;
+//    }
+//    return null;
+//  }
+
+  //  /**
+  //   * Return a partitioner for .html files.
+  //   */
+  //  private IDocumentPartitioner createHTMLPartitioner() {
+  //    return new DefaultPartitioner(getHTMLPartitionScanner(), TYPES);
+  //  }
+  //
+  //  private IDocumentPartitioner createIncludePartitioner() {
+  //    return new DefaultPartitioner(getPHPPartitionScanner(), TYPES);
+  //  }
+  //
+  //  private IDocumentPartitioner createJavaScriptPartitioner() {
+  //    return new DefaultPartitioner(getHTMLPartitionScanner(), TYPES);
+  //  }
+
   /**
    * Creates a line tracker working with the same line delimiters as the document
    * of the given element. Assumes the element to be managed by this document provider.
@@ -83,4 +1256,286 @@ public class PHPDocumentProvider extends FileDocumentProvider {
   public ILineTracker createLineTracker(Object element) {
     return new DefaultLineTracker();
   }
+
+  //  /**
+  //   * Return a partitioner for .php files.
+  //   */
+  //  private IDocumentPartitioner createPHPPartitioner() {
+  //    return new DefaultPartitioner(getPHPPartitionScanner(), TYPES);
+  //  }
+  //
+  //  private IDocumentPartitioner createSmartyPartitioner() {
+  //    return new DefaultPartitioner(getSmartyPartitionScanner(), TYPES);
+  //  }
+  //
+  //  private IDocumentPartitioner createXMLPartitioner() {
+  //    return new DefaultPartitioner(getXMLPartitionScanner(), TYPES);
+  //  }
+  //
+  //  /**
+  //   * Return a scanner for creating html partitions.
+  //   */
+  //  private PHPPartitionScanner getHTMLPartitionScanner() {
+  //    if (HTML_PARTITION_SCANNER == null)
+  //      HTML_PARTITION_SCANNER = new PHPPartitionScanner(IPHPPartitionScannerConstants.HTML_FILE);
+  //    return HTML_PARTITION_SCANNER;
+  //  }
+  //  /**
+  //   * Return a scanner for creating php partitions.
+  //   */
+  //  private PHPPartitionScanner getPHPPartitionScanner() {
+  //    if (PHP_PARTITION_SCANNER == null)
+  //      PHP_PARTITION_SCANNER = new PHPPartitionScanner(IPHPPartitionScannerConstants.PHP_FILE);
+  //    return PHP_PARTITION_SCANNER;
+  //  }
+  //
+  //  /**
+  //   * Return a scanner for creating smarty partitions.
+  //   */
+  //  private PHPPartitionScanner getSmartyPartitionScanner() {
+  //    if (SMARTY_PARTITION_SCANNER == null)
+  //      SMARTY_PARTITION_SCANNER = new PHPPartitionScanner(IPHPPartitionScannerConstants.SMARTY_FILE);
+  //    return SMARTY_PARTITION_SCANNER;
+  //  }
+  //
+  //  /**
+  //   * Return a scanner for creating xml partitions.
+  //   */
+  //  private PHPPartitionScanner getXMLPartitionScanner() {
+  //    if (XML_PARTITION_SCANNER == null)
+  //      XML_PARTITION_SCANNER = new PHPPartitionScanner(IPHPPartitionScannerConstants.XML_FILE);
+  //    return XML_PARTITION_SCANNER;
+  //  }
+
+//  protected void initializeDocument(IDocument document, IEditorInput editorInput) {
+//    if (document != null) {
+//      JavaTextTools tools = PHPeclipsePlugin.getDefault().getJavaTextTools();
+//      IDocumentPartitioner partitioner = null;
+//      if (editorInput != null && editorInput instanceof FileEditorInput) {
+//        IFile file = (IFile) ((FileEditorInput) editorInput).getAdapter(IFile.class);
+//        String filename = file.getLocation().toString();
+//        String extension = filename.substring(filename.lastIndexOf("."), filename.length());
+//        partitioner = tools.createDocumentPartitioner(extension);
+//      } else {
+//        partitioner = tools.createDocumentPartitioner(".php");
+//      }
+//      document.setDocumentPartitioner(partitioner);
+//      partitioner.connect(document);
+//    }
+//  }
+
+  /*
+   * @see org.eclipse.ui.texteditor.AbstractDocumentProvider#doResetDocument(java.lang.Object, org.eclipse.core.runtime.IProgressMonitor)
+   */
+//  protected void doResetDocument(Object element, IProgressMonitor monitor) throws CoreException {
+//    if (element == null)
+//      return;
+//    
+//    ElementInfo elementInfo= getElementInfo(element);                
+//    if (elementInfo instanceof CompilationUnitInfo) {
+//      CompilationUnitInfo info= (CompilationUnitInfo) elementInfo;
+//      
+//      IDocument document;
+//      IStatus status= null;
+//      
+//      try {
+//        
+//        ICompilationUnit original= (ICompilationUnit) info.fCopy.getOriginalElement();
+//        IResource resource= original.getResource();
+//        if (resource instanceof IFile) {
+//          
+//          IFile file= (IFile) resource;
+//          
+//          try {
+//            refreshFile(file, monitor);
+//          } catch (CoreException x) {
+//            handleCoreException(x, PHPEditorMessages.getString("CompilationUnitDocumentProvider.error.resetDocument")); //$NON-NLS-1$
+//          }
+//          
+//          IFileEditorInput input= new FileEditorInput(file);
+//          document= super.createDocument(input);
+//          
+//        } else {
+//          document= createEmptyDocument();
+//        }
+//        
+//      } catch (CoreException x) {
+//        document= createEmptyDocument();
+//        status= x.getStatus();
+//      }
+//      
+//      fireElementContentAboutToBeReplaced(element);
+//      
+//      removeUnchangedElementListeners(element, info);
+//      info.fDocument.set(document.get());
+//      info.fCanBeSaved= false;
+//      info.fStatus= status;
+//      addUnchangedElementListeners(element, info);
+//      
+//      fireElementContentReplaced(element);
+//      fireElementDirtyStateChanged(element, false);
+//      
+//    } else {
+//      super.doResetDocument(element, monitor);
+//    }
+//  }
+  
+  /*
+   * @see AbstractDocumentProvider#resetDocument(Object)
+   */
+//  public void resetDocument(Object element) throws CoreException {
+//    if (element == null)
+//      return;
+//
+//    ElementInfo elementInfo = getElementInfo(element);
+//    if (elementInfo instanceof CompilationUnitInfo) {
+//      CompilationUnitInfo info = (CompilationUnitInfo) elementInfo;
+//
+//      IDocument document;
+//      IStatus status = null;
+//
+//      try {
+//
+//        ICompilationUnit original = (ICompilationUnit) info.fCopy.getOriginalElement();
+//        IResource resource = original.getResource();
+//        if (resource instanceof IFile) {
+//
+//          IFile file = (IFile) resource;
+//
+//          try {
+//            refreshFile(file);
+//          } catch (CoreException x) {
+//            handleCoreException(x, PHPEditorMessages.getString("PHPDocumentProvider.error.resetDocument")); //$NON-NLS-1$
+//          }
+//
+//          IFileEditorInput input = new FileEditorInput(file);
+//          document = super.createDocument(input);
+//
+//        } else {
+//          document = new Document();
+//        }
+//
+//      } catch (CoreException x) {
+//        document = new Document();
+//        status = x.getStatus();
+//      }
+//
+//      fireElementContentAboutToBeReplaced(element);
+//
+//      removeUnchangedElementListeners(element, info);
+//      info.fDocument.set(document.get());
+//      info.fCanBeSaved = false;
+//      info.fStatus = status;
+//      addUnchangedElementListeners(element, info);
+//
+//      fireElementContentReplaced(element);
+//      fireElementDirtyStateChanged(element, false);
+//
+//    } else {
+//      super.resetDocument(element);
+//    }
+//  }
+  /**
+        * Saves the content of the given document to the given element.
+        * This is only performed when this provider initiated the save.
+        * 
+        * @param monitor the progress monitor
+        * @param element the element to which to save
+        * @param document the document to save
+        * @param overwrite <code>true</code> if the save should be enforced
+        */
+  public void saveDocumentContent(IProgressMonitor monitor, Object element, IDocument document, boolean overwrite)
+    throws CoreException {
+
+    if (!fIsAboutToSave)
+      return;
+
+    if (element instanceof IFileEditorInput) {
+      IFileEditorInput input = (IFileEditorInput) element;
+      try {
+        String encoding = getEncoding(element);
+        if (encoding == null)
+          encoding = ResourcesPlugin.getEncoding();
+        InputStream stream = new ByteArrayInputStream(document.get().getBytes(encoding));
+        IFile file = input.getFile();
+        file.setContents(stream, overwrite, true, monitor);
+      } catch (IOException x) {
+        IStatus s = new Status(IStatus.ERROR, PHPeclipsePlugin.PLUGIN_ID, IStatus.OK, x.getMessage(), x);
+        throw new CoreException(s);
+      }
+    }
+  }
+  /**
+   * Returns the underlying resource for the given element.
+   * 
+   * @param the element
+   * @return the underlying resource of the given element
+   */
+  public IResource getUnderlyingResource(Object element) {
+    if (element instanceof IFileEditorInput) {
+      IFileEditorInput input = (IFileEditorInput) element;
+      return input.getFile();
+    }
+    return null;
+  }
+
+       /*
+        * @see org.eclipse.jdt.internal.ui.javaeditor.ICompilationUnitDocumentProvider#getWorkingCopy(java.lang.Object)
+        */
+       public ICompilationUnit getWorkingCopy(Object element) {
+               FileInfo fileInfo= getFileInfo(element);                
+               if (fileInfo instanceof CompilationUnitInfo) {
+                       CompilationUnitInfo info= (CompilationUnitInfo) fileInfo;
+                       return info.fCopy;
+               }
+               return null;
+       }
+
+
+  /*
+        * @see org.eclipse.jdt.internal.ui.javaeditor.ICompilationUnitDocumentProvider#shutdown()
+        */
+       public void shutdown() {
+               PHPeclipsePlugin.getDefault().getPreferenceStore().removePropertyChangeListener(fPropertyListener);
+               Iterator e= getConnectedElementsIterator();
+               while (e.hasNext())
+                       disconnect(e.next());
+       }
+
+  /**
+   * Returns the preference whether handling temporary problems is enabled.
+   */
+  protected boolean isHandlingTemporaryProblems() {
+    IPreferenceStore store = PHPeclipsePlugin.getDefault().getPreferenceStore();
+    return store.getBoolean(HANDLE_TEMPORARY_PROBLEMS);
+  }
+
+  /**
+        * Switches the state of problem acceptance according to the value in the preference store.
+        */
+       protected void enableHandlingTemporaryProblems() {
+               boolean enable= isHandlingTemporaryProblems();
+               for (Iterator iter= getFileInfosIterator(); iter.hasNext();) {
+                       FileInfo info= (FileInfo) iter.next();
+                       if (info.fModel instanceof IProblemRequestorExtension) {
+                               IProblemRequestorExtension  extension= (IProblemRequestorExtension) info.fModel;
+                               extension.setIsActive(enable);
+                       }
+               }
+       }
+
+  /**
+   * Adds a listener that reports changes from all compilation unit annotation models.
+   */
+  public void addGlobalAnnotationModelListener(IAnnotationModelListener listener) {
+    fGlobalAnnotationModelListener.addListener(listener);
+  }
+
+  /**
+   * Removes the listener.
+   */
+  public void removeGlobalAnnotationModelListener(IAnnotationModelListener listener) {
+    fGlobalAnnotationModelListener.removeListener(listener);
+  }
+
 }