PyClassFindUsagesHandler.java

/*
 * Copyright 2000-2016 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.findUsages;

import com.intellij.find.findUsages.FindUsagesHandler;
import com.intellij.psi.PsiElement;
import com.jetbrains.python.PyNames;
import com.jetbrains.python.psi.PyClass;
import com.jetbrains.python.psi.PyFunction;
import org.jetbrains.annotations.NotNull;

import java.util.Collection;
import java.util.Collections;

/**
 * @author yole
 */
public class PyClassFindUsagesHandler extends FindUsagesHandler {
  private final PyClass myClass;

  public PyClassFindUsagesHandler(@NotNull PyClass psiElement) {
    super(psiElement);
    myClass = psiElement;
  }

  @NotNull
  @Override
  public PsiElement[] getSecondaryElements() {
    final PyFunction initMethod = myClass.findMethodByName(PyNames.INIT, false, null);
    if (initMethod != null) {
      return new PsiElement[] { initMethod };
    }
    return PsiElement.EMPTY_ARRAY;
  }

  @Override
  protected boolean isSearchForTextOccurrencesAvailable(@NotNull PsiElement psiElement, boolean isSingleFile) {
    return true;
  }

  @Override
  protected Collection<String> getStringsToSearch(@NotNull PsiElement element) {
    if (element instanceof PyFunction && PyNames.INIT.equals(((PyFunction) element).getName())) {
      return Collections.emptyList();
    }
    return super.getStringsToSearch(element);
  }
}