1 files changed, 42 insertions, 0 deletions
diff --git a/bundles/org.eclipse.compare/compare/org/eclipse/compare/internal/AdapterFactory.java b/bundles/org.eclipse.compare/compare/org/eclipse/compare/internal/AdapterFactory.java
new file mode 100644
index 000000000..bc8cddc7d
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+++ b/bundles/org.eclipse.compare/compare/org/eclipse/compare/internal/AdapterFactory.java
@@ -0,0 +1,42 @@
+/*******************************************************************************
+ * Copyright (c) 2010, 2017 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.compare.internal;
+
+import org.eclipse.compare.CompareEditorInput;
+import org.eclipse.core.runtime.IAdapterFactory;
+import org.eclipse.ui.IContributorResourceAdapter;
+import org.eclipse.ui.IEditorInput;
+import org.eclipse.ui.IFileEditorInput;
+
+public class AdapterFactory implements IAdapterFactory {
+
+	@SuppressWarnings("unchecked")
+	@Override
+	public <T> T getAdapter(final Object adaptableObject, Class<T> adapterType) {
+		if (IContributorResourceAdapter.class.equals(adapterType)
+				&& adaptableObject instanceof CompareEditorInput) {
+			return (T) (IContributorResourceAdapter) adaptable -> {
+				Object ei = ((CompareEditorInput) adaptableObject)
+						.getAdapter(IEditorInput.class);
+				if (ei instanceof IFileEditorInput) {
+					return ((IFileEditorInput) ei).getFile();
+				}
+				return null;
+			};
+		}
+		return null;
+	}
+
+	@Override
+	public Class<?>[] getAdapterList() {
+		return new Class[] { IContributorResourceAdapter.class };
+	}
+}
+\ No newline at end of file