1 files changed, 84 insertions, 0 deletions
diff --git a/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/sourcelookup/ResolveDuplicatesHandler.java b/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/sourcelookup/ResolveDuplicatesHandler.java
new file mode 100644
index 000000000..88e858067
--- /dev/null
+++ b/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/sourcelookup/ResolveDuplicatesHandler.java
@@ -0,0 +1,84 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials 
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ * 
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.debug.internal.ui.sourcelookup;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.debug.core.IStatusHandler;
+import org.eclipse.debug.core.model.IStackFrame;
+import org.eclipse.debug.internal.ui.DebugUIPlugin;
+import org.eclipse.jface.window.Window;
+import org.eclipse.ui.dialogs.ElementListSelectionDialog;
+import org.eclipse.ui.model.WorkbenchLabelProvider;
+
+/**
+ * Status handler to prompt for dupicate source element resolution.
+ * 
+ * @since 3.0
+ */
+public class ResolveDuplicatesHandler implements IStatusHandler {
+	/* (non-Javadoc)
+	 * @see org.eclipse.debug.core.IStatusHandler#handleStatus(org.eclipse.core.runtime.IStatus, java.lang.Object)
+	 */
+	public Object handleStatus(IStatus status, Object source) throws CoreException {
+		Object[] args = (Object[])source;
+		IStackFrame frame = (IStackFrame) args[0];
+		List sources = (List) args[1];
+		return resolveSourceElement(frame, sources);
+	}
+	
+	public Object resolveSourceElement(IStackFrame frame, List sources) {
+		Object file = null;
+		sources = removeSourceNotFoundEditors(sources);
+		if(sources.size() == 1) {
+			return sources.get(0);
+		} else if(sources.size() == 0) {
+			return null;
+		}
+		ElementListSelectionDialog dialog = new ElementListSelectionDialog(DebugUIPlugin.getShell(), new WorkbenchLabelProvider());
+		dialog.setMultipleSelection(false);
+		dialog.setTitle(SourceLookupUIMessages.getString("ResolveDuplicatesHandler.0")); //$NON-NLS-1$
+		dialog.setMessage(SourceLookupUIMessages.getString("ResolveDuplicatesHandler.1")); //$NON-NLS-1$
+		dialog.setElements(sources.toArray());
+		dialog.open();											
+		if(dialog.getReturnCode() == Window.OK) {
+			file = dialog.getFirstResult();		
+		}
+		return file;
+	}
+	
+	/**
+	 * Remove extra source not found editors, if any.
+	 * If multiple source not found editors and no "real" source inputs,
+	 * return the first source not found editor.
+	 * @param sources the list to be filtered
+	 * @return the filtered list, may be empty
+	 */
+	private List removeSourceNotFoundEditors(List sources){
+		Iterator iterator = sources.iterator();
+		List filteredList = new ArrayList();
+		Object next;
+		while(iterator.hasNext()) {
+			next = iterator.next();
+			if (!(next instanceof CommonSourceNotFoundEditor)) {
+				filteredList.add(next);
+			}
+		}
+		if (filteredList.isEmpty() && sources.get(0) != null) {
+			filteredList.add(sources.get(0));
+		}
+		return filteredList;
+	}
+}