DomFileFattern

xml/dom-openapi/src/com/intellij/patterns/DomFilePattern.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2000-2014 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.patterns;
+
+import com.intellij.psi.xml.XmlFile;
+import com.intellij.util.ProcessingContext;
+import com.intellij.util.xml.DomElement;
+import com.intellij.util.xml.DomManager;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * @author Dmitry Avdeev
+ */
+public class DomFilePattern<Self extends DomFilePattern<Self>> extends XmlFilePattern<Self> {
+  public DomFilePattern(final Class<? extends DomElement> aClass) {
+    super(new InitialPatternCondition<XmlFile>(XmlFile.class) {
+      @Override
+      public boolean accepts(@Nullable Object o, ProcessingContext context) {
+        return o instanceof XmlFile && DomManager.getDomManager(((XmlFile)o).getProject()).getFileElement((XmlFile)o, aClass) != null;
+      }
+    });
+  }
+
+  public static class Capture extends DomFilePattern<Capture> {
+    public Capture(Class<? extends DomElement> aClass) {
+      super(aClass);
+    }
+  }
+}

xml/dom-openapi/src/com/intellij/patterns/DomPatterns.java

@@ -62,6 +62,10 @@ public class DomPatterns {
     });
   }
 
+  public static <T extends DomElement> DomFilePattern.Capture inDomFile(Class<T> rootElementClass) {
+    return new DomFilePattern.Capture(rootElementClass);
+  }
+
   public static XmlTagPattern.Capture tagWithDom(String tagName, Class<? extends DomElement> aClass) {
     return tagWithDom(tagName, domElement(aClass));
   }