/*
 * Copyright 2000-2009 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.
 */

/*
 * @author max
 */
package com.intellij.psi.impl.search;

import com.intellij.openapi.fileTypes.StdFileTypes;
import com.intellij.openapi.roots.ProjectFileIndex;
import com.intellij.openapi.roots.ProjectRootManager;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.search.DelegatingGlobalSearchScope;
import com.intellij.psi.search.GlobalSearchScope;

public class JavaSourceFilterScope extends DelegatingGlobalSearchScope {
  private final ProjectFileIndex myIndex;

  public JavaSourceFilterScope(final GlobalSearchScope delegate) {
    super(delegate);
    myIndex = ProjectRootManager.getInstance(getProject()).getFileIndex();
  }

  public boolean contains(final VirtualFile file) {
    if (!super.contains(file)) {
      return false;
    }

    if (StdFileTypes.CLASS == file.getFileType()) {
      return myIndex.isInLibraryClasses(file);
    }

    return myIndex.isInSourceContent(file);
  }

}