platform/lang-impl/src/com/intellij/codeInsight/navigation/actions/GotoDeclarationHandlerBase.java

/*
 * Copyright 2000-2013 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.intellij.codeInsight.navigation.actions;

import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.editor.Editor;
import com.intellij.psi.PsiElement;
import org.jetbrains.annotations.Nullable;

/**
 * @author Eugene.Kudelevsky
 */
public abstract class GotoDeclarationHandlerBase implements GotoDeclarationHandler {
  @Nullable
  @Override
  public PsiElement[] getGotoDeclarationTargets(@Nullable PsiElement sourceElement, int offset, Editor editor) {
    final PsiElement target = getGotoDeclarationTarget(sourceElement, editor);
    return target != null ? new PsiElement[]{target} : null;
  }

  @Nullable
  public abstract PsiElement getGotoDeclarationTarget(@Nullable PsiElement sourceElement, Editor editor);

  @Override
  public String getActionText(DataContext context) {
    return null;
  }
}