/*
* Copyright 2013-2016 consulo.io
*
* 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 consulo.roots;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.components.AbstractProjectComponent;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.extensions.ExtensionPointName;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.module.ModuleUtilCore;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.roots.ContentEntry;
import com.intellij.openapi.roots.ModifiableRootModel;
import com.intellij.openapi.roots.ModuleRootManager;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.openapi.vfs.VirtualFileAdapter;
import com.intellij.openapi.vfs.VirtualFileEvent;
import com.intellij.openapi.vfs.VirtualFileManager;
import consulo.annotations.RequiredReadAction;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
/**
* @author VISTALL
* @since 06.04.2015
*/
public class ContentEntryFileListener extends AbstractProjectComponent {
public static final Logger LOGGER = Logger.getInstance(ContentEntryFileListener.class);
public interface PossibleModuleForFileResolver {
ExtensionPointName<PossibleModuleForFileResolver> EP_NAME = ExtensionPointName.create("com.intellij.possibleModuleForFileResolver");
@Nullable
@RequiredReadAction
Module resolve(@NotNull Project project, @NotNull VirtualFile virtualFile);
}
public class Listener extends VirtualFileAdapter {
@Override
@RequiredReadAction
public void fileCreated(@NotNull VirtualFileEvent event) {
Module resolvedModule = null;
for (PossibleModuleForFileResolver possibleModuleForFileResolver : PossibleModuleForFileResolver.EP_NAME.getExtensions()) {
Module temp = possibleModuleForFileResolver.resolve(myProject, event.getFile());
if (temp != null) {
resolvedModule = temp;
break;
}
}
if (resolvedModule == null) {
return;
}
ContentEntryFileListener.LOGGER.assertTrue(resolvedModule.getModuleDirUrl() == null, "We cant add file as content entry is module created as dir based");
ModuleRootManager moduleRootManager = ModuleRootManager.getInstance(resolvedModule);
final ModifiableRootModel modifiableModel = moduleRootManager.getModifiableModel();
for (ModuleRootLayer moduleRootLayer : modifiableModel.getLayers().values()) {
ModifiableModuleRootLayer modifiableModuleRootLayer = (ModifiableModuleRootLayer)moduleRootLayer;
modifiableModuleRootLayer.addContentEntry(event.getFile());
}
commitViaDumbService(modifiableModel);
}
@Override
public void beforeFileDeletion(@NotNull VirtualFileEvent event) {
VirtualFile fileToDelete = event.getFile();
Module moduleForFile = ModuleUtilCore.findModuleForFile(fileToDelete, myProject);
// if module have dir url - dont need check
if (moduleForFile == null || moduleForFile.getModuleDirUrl() != null) {
return;
}
ModuleRootManager moduleRootManager = ModuleRootManager.getInstance(moduleForFile);
final ModifiableRootModel modifiableModel = moduleRootManager.getModifiableModel();
boolean processed = false;
for (ModuleRootLayer moduleRootLayer : modifiableModel.getLayers().values()) {
ModifiableModuleRootLayer modifiableModuleRootLayer = (ModifiableModuleRootLayer)moduleRootLayer;
ContentEntry toRemove = null;
for (ContentEntry contentEntry : modifiableModuleRootLayer.getContentEntries()) {
VirtualFile contentEntryFile = contentEntry.getFile();
if (fileToDelete.equals(contentEntryFile)) {
toRemove = contentEntry;
break;
}
}
if (toRemove != null) {
processed = true;
modifiableModuleRootLayer.removeContentEntry(toRemove);
}
}
if (processed) {
commitViaDumbService(modifiableModel);
}
else {
modifiableModel.dispose();
}
}
private void commitViaDumbService(final ModifiableRootModel model) {
//noinspection RequiredXAction
ApplicationManager.getApplication().runWriteAction(new Runnable() {
@Override
public void run() {
model.commit();
}
});
}
}
private Listener myListener = new Listener();
public ContentEntryFileListener(Project project) {
super(project);
}
@Override
public void initComponent() {
VirtualFileManager.getInstance().addVirtualFileListener(myListener);
}
@Override
public void disposeComponent() {
VirtualFileManager.getInstance().removeVirtualFileListener(myListener);
}
}