platform/structure-view-api/src/com/intellij/lang/LanguageStructureViewBuilder.java

/*
 * 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.
 */

/*
 * @author max
 */
package com.intellij.lang;

import com.intellij.ide.structureView.StructureViewBuilder;
import com.intellij.psi.PsiFile;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

public class LanguageStructureViewBuilder extends LanguageExtension<PsiStructureViewFactory>{
  public static final LanguageStructureViewBuilder INSTANCE = new LanguageStructureViewBuilder();

  private LanguageStructureViewBuilder() {
    super(PsiStructureViewFactory.EP_NAME);
  }

  @Nullable
  public StructureViewBuilder getStructureViewBuilder(@NotNull PsiFile file) {
    PsiStructureViewFactory factory = forLanguage(file.getLanguage());
    if (factory != null) {
      return factory.getStructureViewBuilder(file);
    }
    return null;
  }
}