plugins/groovy/groovy-psi/src/org/jetbrains/plugins/groovy/codeInspection/local/GroovyUnusedImportsPassFactory.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 org.jetbrains.plugins.groovy.codeInspection.local;

import com.intellij.codeHighlighting.Pass;
import com.intellij.codeHighlighting.TextEditorHighlightingPass;
import com.intellij.codeHighlighting.TextEditorHighlightingPassFactory;
import com.intellij.codeHighlighting.TextEditorHighlightingPassRegistrar;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.components.AbstractProjectComponent;
import com.intellij.openapi.project.Project;
import com.intellij.psi.PsiFile;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.plugins.groovy.lang.psi.GroovyFile;

/**
 * @author ilyas
 */
public class GroovyUnusedImportsPassFactory extends AbstractProjectComponent implements TextEditorHighlightingPassFactory {
  public GroovyUnusedImportsPassFactory(Project project) {
    super(project);

    TextEditorHighlightingPassRegistrar.getInstance(project).registerTextEditorHighlightingPass(this, new int[]{Pass.UPDATE_ALL},
                                                                                                 null, true, -1);
  }

  @Override
  @Nullable
  public TextEditorHighlightingPass createHighlightingPass(@NotNull PsiFile file, @NotNull Editor editor) {
    if (!(file instanceof GroovyFile)) return null;
    return new GroovyPostHighlightingPass((GroovyFile)file, editor);
  }

  @Override
  @NonNls
  @NotNull
  public String getComponentName() {
    return "Groovy unused imports pass factory";
  }
}