RenamePyClassProcessor.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.
 */
package com.jetbrains.python.refactoring.rename;

import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiReference;
import com.intellij.psi.search.GlobalSearchScope;
import com.intellij.psi.search.searches.ReferencesSearch;
import com.intellij.util.Processor;
import com.jetbrains.python.PyNames;
import com.jetbrains.python.codeInsight.PyCodeInsightSettings;
import com.jetbrains.python.psi.PyClass;
import com.jetbrains.python.psi.PyFunction;
import org.jetbrains.annotations.NotNull;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

/**
 * @author yole
 */
public class RenamePyClassProcessor extends RenamePyElementProcessor {
  @Override
  public boolean canProcessElement(@NotNull PsiElement element) {
    return element instanceof PyClass;
  }

  @Override
  public boolean isToSearchInComments(PsiElement element) {
    return PyCodeInsightSettings.getInstance().RENAME_SEARCH_IN_COMMENTS_FOR_CLASS;
  }

  @Override
  public void setToSearchInComments(PsiElement element, boolean enabled) {
    PyCodeInsightSettings.getInstance().RENAME_SEARCH_IN_COMMENTS_FOR_CLASS = enabled;
  }

  @Override
  public boolean isToSearchForTextOccurrences(PsiElement element) {
    return PyCodeInsightSettings.getInstance().RENAME_SEARCH_NON_CODE_FOR_CLASS;
  }

  @Override
  public void setToSearchForTextOccurrences(PsiElement element, boolean enabled) {
    PyCodeInsightSettings.getInstance().RENAME_SEARCH_NON_CODE_FOR_CLASS = enabled;
  }

  @NotNull
  @Override
  public Collection<PsiReference> findReferences(final PsiElement element) {
    if (element instanceof PyClass) {
      final PyFunction initMethod = ((PyClass)element).findMethodByName(PyNames.INIT, true, null);
      if (initMethod != null) {
        final List<PsiReference> allRefs = Collections.synchronizedList(new ArrayList<PsiReference>());
        allRefs.addAll(super.findReferences(element));
        ReferencesSearch.search(initMethod, GlobalSearchScope.projectScope(element.getProject())).forEach(psiReference -> {
          if (psiReference.getCanonicalText().equals(((PyClass)element).getName())) {
            allRefs.add(psiReference);
          }
          return true;
        });
        return allRefs;
      }
    }
    return super.findReferences(element);
  }
}