### Eclipse Workspace Patch 1.0
#P org.eclipse.jface.text
Index: projection/org/eclipse/jface/text/source/projection/ProjectionViewer.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jface.text/projection/org/eclipse/jface/text/source/projection/ProjectionViewer.java,v
retrieving revision 1.103
diff -u -r1.103 ProjectionViewer.java
--- projection/org/eclipse/jface/text/source/projection/ProjectionViewer.java	2 Oct 2008 15:40:41 -0000	1.103
+++ projection/org/eclipse/jface/text/source/projection/ProjectionViewer.java	3 Oct 2008 15:16:58 -0000
@@ -30,10 +30,14 @@
 
 import org.eclipse.jface.text.BadLocationException;
 import org.eclipse.jface.text.DocumentEvent;
+import org.eclipse.jface.text.DocumentRewriteSessionEvent;
+import org.eclipse.jface.text.DocumentRewriteSessionType;
 import org.eclipse.jface.text.FindReplaceDocumentAdapter;
 import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IDocumentExtension4;
 import org.eclipse.jface.text.IDocumentInformationMappingExtension;
 import org.eclipse.jface.text.IDocumentListener;
+import org.eclipse.jface.text.IDocumentRewriteSessionListener;
 import org.eclipse.jface.text.IRegion;
 import org.eclipse.jface.text.ISlaveDocumentManager;
 import org.eclipse.jface.text.ITextViewerExtension5;
@@ -74,6 +78,7 @@
 public class ProjectionViewer extends SourceViewer implements ITextViewerExtension5 {
 
 
+
 	private static final int BASE= INFORMATION; // see ISourceViewer.INFORMATION
 
 	/** Operation constant for the expand operation. */
@@ -301,6 +306,28 @@
 	 */
 	private int fDeletedLines;
 
+	/**
+	 * The listener for document rewrite sessions.
+	 *
+	 * @since 3.5
+	 */
+	private final IDocumentRewriteSessionListener fSessionListener= new ProjectionDocumentRewriteSessionListener();
+	private class ProjectionDocumentRewriteSessionListener implements IDocumentRewriteSessionListener {
+
+		private boolean fWasProjectionEnabledBeforeRewrite= false;
+
+		public void documentRewriteSessionChanged(DocumentRewriteSessionEvent event) {
+			if (event.getSession().getSessionType() == DocumentRewriteSessionType.UNRESTRICTED_SMALL)
+				return;
+			if (DocumentRewriteSessionEvent.SESSION_START.equals(event.getChangeType())) {
+				fWasProjectionEnabledBeforeRewrite= isProjectionMode();
+				disableProjection();
+			} else if (DocumentRewriteSessionEvent.SESSION_STOP.equals(event.getChangeType()))
+				if (fWasProjectionEnabledBeforeRewrite)
+					enableProjection();
+		}
+	}
+
 
 	/**
 	 * Creates a new projection source viewer.
@@ -367,8 +394,19 @@
 			fProjectionAnnotationModel= null;
 		}
 
+		IDocument oldDocument= getDocument();
+		if (oldDocument instanceof IDocumentExtension4) {
+			IDocumentExtension4 ext= (IDocumentExtension4)oldDocument;
+			ext.removeDocumentRewriteSessionListener(fSessionListener);
+		}
+
 		super.setDocument(document, annotationModel, modelRangeOffset, modelRangeLength);
 
+		if (document instanceof IDocumentExtension4) {
+			IDocumentExtension4 ext= (IDocumentExtension4)document;
+			ext.addDocumentRewriteSessionListener(fSessionListener);
+		}
+
 		if (wasProjectionEnabled && document != null)
 			enableProjection();