GoOptimizeImportsPassFactory.java

/*
 * Copyright 2013-2015 Sergey Ignatov, Alexander Zolotov, Mihai Toader, Florin Patan
 *
 * 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.goide.codeInsight.imports;

import com.goide.psi.GoFile;
import com.intellij.codeHighlighting.Pass;
import com.intellij.codeHighlighting.TextEditorHighlightingPass;
import com.intellij.codeHighlighting.TextEditorHighlightingPassFactory;
import com.intellij.codeHighlighting.TextEditorHighlightingPassRegistrar;
import com.intellij.codeInsight.daemon.impl.FileStatusMap;
import com.intellij.openapi.components.AbstractProjectComponent;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.TextRange;
import com.intellij.psi.PsiFile;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

public class GoOptimizeImportsPassFactory extends AbstractProjectComponent implements TextEditorHighlightingPassFactory {
  protected GoOptimizeImportsPassFactory(Project project, TextEditorHighlightingPassRegistrar highlightingPassRegistrar) {
    super(project);
    highlightingPassRegistrar.registerTextEditorHighlightingPass(this, new int[]{Pass.UPDATE_ALL}, null, false, -1);
  }

  @Nullable
  @Override
  public TextEditorHighlightingPass createHighlightingPass(@NotNull PsiFile file, @NotNull Editor editor) {
    TextRange range = FileStatusMap.getDirtyTextRange(editor, Pass.UPDATE_ALL);
    if (range != null && file instanceof GoFile && GoCodeInsightSettings.getInstance().isOptimizeImportsOnTheFly()) {
      return new GoOptimizeImportsPass(file.getProject(), file, editor);
    }
    return null;
  }

  @NotNull
  @Override
  public String getComponentName() {
    return "OptimizeImportsPassFactory";
  }
}