1 /* 2 * Copyright 2016 Google Inc. All Rights Reserved. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.googlejavaformat.intellij; 18 19 import static com.google.common.base.Preconditions.checkState; 20 21 import com.intellij.ide.plugins.IdeaPluginDescriptor; 22 import com.intellij.ide.plugins.PluginManagerCore; 23 import com.intellij.openapi.extensions.PluginId; 24 import com.intellij.openapi.project.Project; 25 import com.intellij.openapi.project.ProjectManagerListener; 26 import com.intellij.psi.codeStyle.CodeStyleManager; 27 import com.intellij.serviceContainer.ComponentManagerImpl; 28 import org.jetbrains.annotations.NotNull; 29 30 /** 31 * A component that replaces the default IntelliJ {@link CodeStyleManager} with one that formats via 32 * google-java-format. 33 */ 34 final class GoogleJavaFormatInstaller implements ProjectManagerListener { 35 36 @Override projectOpened(@otNull Project project)37 public void projectOpened(@NotNull Project project) { 38 installFormatter(project); 39 } 40 installFormatter(Project project)41 private static void installFormatter(Project project) { 42 CodeStyleManager currentManager = CodeStyleManager.getInstance(project); 43 44 if (currentManager instanceof GoogleJavaFormatCodeStyleManager) { 45 currentManager = ((GoogleJavaFormatCodeStyleManager) currentManager).getDelegate(); 46 } 47 48 setManager(project, new GoogleJavaFormatCodeStyleManager(currentManager)); 49 } 50 setManager(Project project, CodeStyleManager newManager)51 private static void setManager(Project project, CodeStyleManager newManager) { 52 ComponentManagerImpl platformComponentManager = (ComponentManagerImpl) project; 53 IdeaPluginDescriptor plugin = PluginManagerCore.getPlugin(PluginId.getId("google-java-format")); 54 checkState(plugin != null, "Couldn't locate our own PluginDescriptor."); 55 platformComponentManager.registerServiceInstance(CodeStyleManager.class, newManager, plugin); 56 } 57 } 58