Fix for 92935

3 files changed, 46 insertions, 4 deletions

diff --git a/core/org.eclipse.cdt.core/index/org/eclipse/cdt/internal/core/index/ctagsindexer/CTagsIndexer.java b/core/org.eclipse.cdt.core/index/org/eclipse/cdt/internal/core/index/ctagsindexer/CTagsIndexer.java
index 4eb713e8c29..8973c4a7cbc 100644
--- a/core/org.eclipse.cdt.core/index/org/eclipse/cdt/internal/core/index/ctagsindexer/CTagsIndexer.java
+++ b/core/org.eclipse.cdt.core/index/org/eclipse/cdt/internal/core/index/ctagsindexer/CTagsIndexer.java
@@ -85,8 +85,7 @@ public class CTagsIndexer extends AbstractCExtension implements ICDTIndexer {
 	 * @see org.eclipse.cdt.core.index.ICDTIndexer#getIndexerFeatures()
 	 */
 	public int getIndexerFeatures() {
-		// TODO Auto-generated method stub
-		return 0;
+		return ICDTIndexer._DECLARATIONS | ICDTIndexer._DEFINITIONS | ICDTIndexer._LINENUMBERS | ICDTIndexer._C | ICDTIndexer._CPP;
 	}
 
 	/* (non-Javadoc)
diff --git a/core/org.eclipse.cdt.core/index/org/eclipse/cdt/internal/core/index/domsourceindexer/DOMSourceIndexer.java b/core/org.eclipse.cdt.core/index/org/eclipse/cdt/internal/core/index/domsourceindexer/DOMSourceIndexer.java
index bd054f20d27..a7a9defa174 100644
--- a/core/org.eclipse.cdt.core/index/org/eclipse/cdt/internal/core/index/domsourceindexer/DOMSourceIndexer.java
+++ b/core/org.eclipse.cdt.core/index/org/eclipse/cdt/internal/core/index/domsourceindexer/DOMSourceIndexer.java
@@ -410,8 +410,7 @@ public class DOMSourceIndexer extends AbstractCExtension implements ICDTIndexer
 	 * @see org.eclipse.cdt.core.index2.IIndexer#getIndexerFeatures()
 	 */
 	public int getIndexerFeatures() {
-		// TODO Auto-generated method stub
-		return 0;
+		return ICDTIndexer._DECLARATIONS | ICDTIndexer._DEFINITIONS | ICDTIndexer._REFERENCES | ICDTIndexer._OFFSETINFO | ICDTIndexer._C | ICDTIndexer._CPP;
 	}
 
 	/* (non-Javadoc)
diff --git a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/search/actions/ReferencesSearchGroup.java b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/search/actions/ReferencesSearchGroup.java
index 88e4dc638a3..7b8b7bc2511 100644
--- a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/search/actions/ReferencesSearchGroup.java
+++ b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/search/actions/ReferencesSearchGroup.java
@@ -13,13 +13,21 @@ package org.eclipse.cdt.internal.ui.search.actions;
 import java.util.ArrayList;
 import java.util.Iterator;
 
+import org.eclipse.cdt.core.CCorePlugin;
+import org.eclipse.cdt.core.index.ICDTIndexer;
+import org.eclipse.cdt.core.model.ICElement;
+import org.eclipse.cdt.core.model.ICProject;
 import org.eclipse.cdt.internal.ui.editor.CEditor;
 import org.eclipse.cdt.internal.ui.editor.ExternalSearchEditor;
 import org.eclipse.cdt.internal.ui.editor.ICEditorActionDefinitionIds;
 import org.eclipse.cdt.internal.ui.search.CSearchMessages;
 import org.eclipse.cdt.internal.ui.search.CSearchUtil;
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IProject;
 import org.eclipse.jface.action.IMenuManager;
 import org.eclipse.jface.action.MenuManager;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.search.ui.IContextMenuConstants;
 import org.eclipse.ui.IWorkbenchSite;
 import org.eclipse.ui.IWorkingSet;
@@ -74,6 +82,31 @@ public class ReferencesSearchGroup extends ActionGroup {
 			menu.appendToGroup(ITextEditorActionConstants.GROUP_FIND, refsMenu);	
 		}
 		
+		if (fEditor != null){
+			IFile fileInput= fEditor.getInputFile();
+			ICDTIndexer indexer = CCorePlugin.getDefault().getCoreModel().getIndexManager().getIndexerForProject(fileInput.getProject());
+			if (indexer != null){
+				setReferenceMenuEnabled(indexer.getIndexerFeatures());
+			}
+		}
+		else if (fSite != null){
+		 try {
+			 ISelection sel =fSite.getSelectionProvider().getSelection();
+			 if (sel instanceof IStructuredSelection){
+				 IStructuredSelection structSel = (IStructuredSelection) sel;
+				 Object cElement = structSel.getFirstElement();
+				 if (cElement instanceof ICElement){
+					 ICElement el = (ICElement) cElement;
+					 //ICProject p= el.getCProject();
+					 IProject proj = el.getCProject().getProject();
+					 ICDTIndexer indexer = CCorePlugin.getDefault().getCoreModel().getIndexManager().getIndexerForProject(proj);
+					 setReferenceMenuEnabled(indexer.getIndexerFeatures());
+				 }
+			 }
+		 }  catch (NullPointerException err){}
+		}
+		
+		
 		incomingMenu.add(refsMenu);
 		incomingMenu = refsMenu;
 		
@@ -87,6 +120,17 @@ public class ReferencesSearchGroup extends ActionGroup {
 		
 	}	
 	
+	private void setReferenceMenuEnabled(int indexFeatures){
+		if ((indexFeatures & ICDTIndexer._REFERENCES) == ICDTIndexer._REFERENCES){
+			//references for this indexer
+			fFindRefsAction.setEnabled(true);
+			fFindRefsInWorkingSetAction.setEnabled(true);
+		} else {
+			//no references for this indexer
+			fFindRefsAction.setEnabled(false);
+			fFindRefsInWorkingSetAction.setEnabled(false);
+		}
+	}
 	/**
 	 * @return
 	 */