MultiMarkdownReferenceContributor.java

/*
 * Copyright (c) 2015-2015 Vladimir Schneider <vladimir.schneider@gmail.com>
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.vladsch.idea.multimarkdown.language;

import com.intellij.patterns.PlatformPatterns;
import com.intellij.psi.*;
import com.intellij.util.ProcessingContext;
import com.vladsch.idea.multimarkdown.psi.MultiMarkdownNamedElement;
import org.jetbrains.annotations.NotNull;

public class MultiMarkdownReferenceContributor extends PsiReferenceContributor {
    @Override
    public void registerReferenceProviders(@NotNull PsiReferenceRegistrar registrar) {
        registrar.registerReferenceProvider(PlatformPatterns.psiElement(MultiMarkdownNamedElement.class),
                new PsiReferenceProvider() {
                    @NotNull
                    @Override
                    public PsiReference[] getReferencesByElement(@NotNull PsiElement element, @NotNull ProcessingContext context) {
                        if (element instanceof MultiMarkdownNamedElement && ((MultiMarkdownNamedElement) element).getName() != null) {
                            return new PsiReference[] { element.getReference() };
                        }
                        else {
                            return new PsiReference[0];
                        }
                    }
                });
    }
}