dart/editor/tools/plugins/com.google.dart.engine.services/src/com/google/dart/engine/services/internal/refactoring/RenameAngularTagSelectorRefactoringImpl.java

/*
 * Copyright (c) 2014, the Dart project authors.
 * 
 * Licensed under the Eclipse Public License v1.0 (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.eclipse.org/legal/epl-v10.html
 * 
 * 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.google.dart.engine.services.internal.refactoring;

import com.google.dart.engine.element.angular.AngularComponentElement;
import com.google.dart.engine.element.angular.AngularElement;
import com.google.dart.engine.element.angular.AngularSelectorElement;
import com.google.dart.engine.element.angular.AngularTagSelectorElement;
import com.google.dart.engine.internal.element.angular.AngularApplication;
import com.google.dart.engine.search.SearchEngine;
import com.google.dart.engine.services.refactoring.NamingConventions;
import com.google.dart.engine.services.refactoring.Refactoring;
import com.google.dart.engine.services.status.RefactoringStatus;

import java.text.MessageFormat;

/**
 * {@link Refactoring} for renaming {@link AngularTagSelectorElement}.
 */
public class RenameAngularTagSelectorRefactoringImpl extends RenameAngularElementRefactoringImpl {
  public RenameAngularTagSelectorRefactoringImpl(SearchEngine searchEngine,
      AngularTagSelectorElement element) {
    super(searchEngine, element);
  }

  @Override
  public String getRefactoringName() {
    return "Rename Tag Selector";
  }

  @Override
  protected RefactoringStatus checkNameConflicts(String newName) {
    AngularApplication application = element.getApplication();
    if (application != null) {
      for (AngularElement angularElement : application.getElements()) {
        if (angularElement instanceof AngularComponentElement) {
          AngularComponentElement component = (AngularComponentElement) angularElement;
          AngularSelectorElement selector = component.getSelector();
          if (selector instanceof AngularTagSelectorElement) {
            AngularTagSelectorElement tagSelector = (AngularTagSelectorElement) selector;
            if (tagSelector.getName().equals(newName)) {
              String message = MessageFormat.format(
                  "Application already defines component with tag selector ''{0}''.",
                  newName);
              return RefactoringStatus.createErrorStatus(message);
            }
          }
        }
      }
    }
    return new RefactoringStatus();
  }

  @Override
  protected RefactoringStatus checkNameSyntax(String newName) {
    return NamingConventions.validateAngularTagSelectorName(newName);
  }
}