OC-662

xml/dom-impl/src/com/intellij/util/xml/impl/DomManagerImpl.java

@@ -1,5 +1,6 @@
 package com.intellij.util.xml.impl;
 
+import com.intellij.ide.highlighter.DomSupportEnabled;
 import com.intellij.ide.startup.StartupManagerEx;
 import com.intellij.openapi.Disposable;
 import com.intellij.openapi.components.ServiceManager;
@@ -337,7 +338,7 @@ public final class DomManagerImpl extends DomManager {
   @Nullable
   public final <T extends DomElement> DomFileElementImpl<T> getFileElement(XmlFile file) {
     if (file == null) return null;
-    if (!StdFileTypes.XML.equals(file.getFileType())) return null;
+    if (file.getFileType() instanceof DomSupportEnabled) return null;
     final VirtualFile virtualFile = file.getVirtualFile();
     if (virtualFile != null && virtualFile.isDirectory()) return null;
     return this.<T>getOrCreateCachedValueProvider(file).getFileElement();

xml/impl/src/com/intellij/ide/highlighter/DomSupportEnabled.java

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2000-2011 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.ide.highlighter;
+
+/**
+ * Created by IntelliJ IDEA.
+ * User: zajac
+ * Date: 15.04.11
+ * Time: 14:57
+ * To change this template use File | Settings | File Templates.
+ */
+public interface DomSupportEnabled {
+}

xml/impl/src/com/intellij/ide/highlighter/XmlFileType.java

@@ -24,7 +24,7 @@ import org.jetbrains.annotations.NotNull;
 
 import javax.swing.*;
 
-public class XmlFileType extends XmlLikeFileType {
+public class XmlFileType extends XmlLikeFileType implements DomSupportEnabled {
   public static final XmlFileType INSTANCE = new XmlFileType();
   @NonNls public static final String DEFAULT_EXTENSION = "xml";
   @NonNls public static final String DOT_DEFAULT_EXTENSION = "."+DEFAULT_EXTENSION;