ApproveRemovedMappingsActivity.java

/*
 * Copyright 2000-2017 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.openapi.fileTypes.impl;

import com.intellij.notification.Notification;
import com.intellij.notification.NotificationListener;
import com.intellij.notification.NotificationType;
import com.intellij.notification.Notifications;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.fileTypes.FileNameMatcher;
import com.intellij.openapi.fileTypes.FileType;
import com.intellij.openapi.fileTypes.FileTypeManager;
import com.intellij.openapi.fileTypes.PlainTextFileType;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.startup.StartupActivity;
import com.intellij.openapi.util.Pair;
import com.intellij.util.ui.UIUtil;
import org.jetbrains.annotations.NotNull;

import javax.swing.event.HyperlinkEvent;
import java.util.Iterator;
import java.util.Map;

/**
 * @author Dmitry Avdeev
 *         Date: 3/11/13
 */
public class ApproveRemovedMappingsActivity implements StartupActivity {
  @Override
  public void runActivity(@NotNull final Project project) {
    if (ApplicationManager.getApplication().isUnitTestMode()) return;

    final Map<FileNameMatcher,Pair<FileType,Boolean>> map = ((FileTypeManagerImpl)FileTypeManager.getInstance()).getRemovedMappings();
    if (!map.isEmpty()) {
      UIUtil.invokeAndWaitIfNeeded((Runnable)() -> {
        for (Iterator<Map.Entry<FileNameMatcher, Pair<FileType, Boolean>>> iterator = map.entrySet().iterator(); iterator.hasNext(); ) {
          Map.Entry<FileNameMatcher, Pair<FileType, Boolean>> entry = iterator.next();
          if (entry.getValue().getSecond()) {
            continue;
          }
          final FileNameMatcher matcher = entry.getKey();
          final FileType fileType = entry.getValue().getFirst();
          Notification notification = new Notification("File type recognized", "File type recognized",
                                                       "File extension " + matcher.getPresentableString() +
                                                       " was reassigned to " + fileType.getName() + " <a href='revert'>Revert</a>",
                                                       NotificationType.WARNING, new NotificationListener.Adapter() {
            @Override
            protected void hyperlinkActivated(@NotNull Notification notification, @NotNull HyperlinkEvent e) {
              ApplicationManager.getApplication().runWriteAction(() -> {
                FileTypeManager.getInstance().associate(PlainTextFileType.INSTANCE, matcher);
                map.put(matcher, Pair.create(fileType, true));
              });
              notification.expire();
            }
          });
          Notifications.Bus.notify(notification, project);
          ApplicationManager.getApplication().runWriteAction(() -> FileTypeManager.getInstance().associate(fileType, matcher));
          iterator.remove();
        }
      });
    }
  }
}