| /* |
| * 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 org.jetbrains.plugins.groovy.dgm; |
| |
| import com.intellij.lang.properties.IProperty; |
| import com.intellij.lang.properties.parsing.PropertiesTokenTypes; |
| import com.intellij.patterns.PlatformPatterns; |
| import com.intellij.psi.*; |
| import com.intellij.psi.impl.source.resolve.reference.impl.providers.JavaClassReferenceProvider; |
| import com.intellij.psi.impl.source.resolve.reference.impl.providers.JavaClassReferenceSet; |
| import com.intellij.util.ProcessingContext; |
| import com.intellij.util.containers.ContainerUtil; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.ArrayList; |
| |
| /** |
| * @author Max Medvedev |
| */ |
| public class DGMReferenceContributor extends PsiReferenceContributor { |
| |
| private final JavaClassReferenceProvider myProvider = new JavaClassReferenceProvider(); |
| |
| @Override |
| public void registerReferenceProviders(@NotNull PsiReferenceRegistrar registrar) { |
| registrar.registerReferenceProvider(PlatformPatterns.psiElement(PropertiesTokenTypes.VALUE_CHARACTERS), new PsiReferenceProvider() { |
| @NotNull |
| @Override |
| public PsiReference[] getReferencesByElement(@NotNull PsiElement element, @NotNull ProcessingContext context) { |
| if (!DGMUtil.isInDGMFile(element)) return PsiReference.EMPTY_ARRAY; |
| |
| IProperty parent = (IProperty)element.getParent(); |
| if (!"extensionClasses".equals(parent.getName())) { |
| return PsiReference.EMPTY_ARRAY; |
| } |
| |
| ArrayList<PsiReference> result = new ArrayList<PsiReference>(); |
| |
| String text = element.getText(); |
| |
| int i = 0; |
| while ((i = skipWhiteSpace(i, text)) < text.length()) { |
| int end = findWhiteSpaceOrComma(i, text); |
| if (end <= text.length()) { |
| JavaClassReferenceSet set = new JavaClassReferenceSet(text.substring(i, end), element, i, true, myProvider); |
| ContainerUtil.addAll(result, set.getAllReferences()); |
| } |
| i = end; |
| i = skipWhiteSpace(i, text); |
| if (i == text.length()) break; |
| if (text.charAt(i) == ',') i++; |
| i = skipWhiteSpace(i, text); |
| } |
| |
| return result.toArray(new PsiReference[result.size()]); |
| } |
| }); |
| } |
| |
| private static int skipWhiteSpace(int i, String text) { |
| while (i < text.length() && Character.isWhitespace(text.charAt(i))) { |
| i++; |
| } |
| return i; |
| } |
| |
| private static int findWhiteSpaceOrComma(int i, String text) { |
| while (i < text.length() && !Character.isWhitespace(text.charAt(i)) && text.charAt(i) != ',') { |
| i++; |
| } |
| return i; |
| } |
| } |