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/*
* 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 com.intellij.psi.impl;
import com.intellij.AppTopics;
import com.intellij.injected.editor.DocumentWindow;
import com.intellij.injected.editor.EditorWindowImpl;
import com.intellij.openapi.application.ApplicationAdapter;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.components.SettingsSavingComponent;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.editor.EditorFactory;
import com.intellij.openapi.editor.event.DocumentEvent;
import com.intellij.openapi.editor.ex.DocumentBulkUpdateListener;
import com.intellij.openapi.fileEditor.FileDocumentManager;
import com.intellij.openapi.fileEditor.FileDocumentManagerAdapter;
import com.intellij.openapi.fileEditor.impl.FileDocumentManagerImpl;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.project.ProjectLocator;
import com.intellij.openapi.util.Computable;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.*;
import com.intellij.psi.impl.source.PostprocessReformattingAspect;
import com.intellij.util.FileContentUtil;
import com.intellij.util.Processor;
import com.intellij.util.messages.MessageBus;
import com.intellij.util.ui.UIUtil;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.annotations.TestOnly;
import java.util.Collection;
import java.util.List;
//todo listen & notifyListeners readonly events?
public class PsiDocumentManagerImpl extends PsiDocumentManagerBase implements SettingsSavingComponent {
private final DocumentCommitThread myDocumentCommitThread;
private final boolean myUnitTestMode = ApplicationManager.getApplication().isUnitTestMode();
public PsiDocumentManagerImpl(@NotNull final Project project,
@NotNull PsiManager psiManager,
@NotNull SmartPointerManager smartPointerManager,
@NotNull EditorFactory editorFactory,
@NotNull MessageBus bus,
@NonNls @NotNull final DocumentCommitThread documentCommitThread) {
super(project, psiManager, smartPointerManager, bus, documentCommitThread);
myDocumentCommitThread = documentCommitThread;
editorFactory.getEventMulticaster().addDocumentListener(this, project);
bus.connect().subscribe(AppTopics.FILE_DOCUMENT_SYNC, new FileDocumentManagerAdapter() {
@Override
public void fileContentLoaded(@NotNull final VirtualFile virtualFile, @NotNull Document document) {
PsiFile psiFile = ApplicationManager.getApplication().runReadAction(new Computable<PsiFile>() {
@Override
public PsiFile compute() {
return myProject.isDisposed() ? null : getCachedPsiFile(virtualFile);
}
});
fireDocumentCreated(document, psiFile);
}
});
bus.connect().subscribe(DocumentBulkUpdateListener.TOPIC, new DocumentBulkUpdateListener.Adapter() {
@Override
public void updateFinished(@NotNull Document doc) {
documentCommitThread.queueCommit(project, doc, "Bulk update finished");
}
});
ApplicationManager.getApplication().addApplicationListener(new ApplicationAdapter() {
@Override
public void beforeWriteActionStart(Object action) {
documentCommitThread.disable("Write action started: " + action);
}
@Override
public void writeActionFinished(Object action) {
documentCommitThread.enable("Write action finished: " + action);
}
}, project);
documentCommitThread.enable("project open");
}
@Nullable
@Override
public PsiFile getPsiFile(@NotNull Document document) {
final PsiFile psiFile = super.getPsiFile(document);
if (myUnitTestMode) {
final VirtualFile virtualFile = FileDocumentManager.getInstance().getFile(document);
if (virtualFile != null && virtualFile.isValid()) {
Collection<Project> projects = ProjectLocator.getInstance().getProjectsForFile(virtualFile);
if (!projects.isEmpty() && !projects.contains(myProject)) {
LOG.error("Trying to get PSI for an alien project. VirtualFile=" + virtualFile +
";\n myProject=" + myProject +
";\n projects returned: " + projects);
}
}
}
return psiFile;
}
@Override
public void documentChanged(DocumentEvent event) {
super.documentChanged(event);
// avoid documents piling up during batch processing
if (FileDocumentManagerImpl.areTooManyDocumentsInTheQueue(myUncommittedDocuments)) {
if (myUnitTestMode) {
try {
LOG.error("Too many uncommitted documents for " + myProject + ":\n" + myUncommittedDocuments);
}
finally {
clearUncommittedDocuments();
}
}
commitAllDocuments();
}
}
@Override
protected void beforeDocumentChangeOnUnlockedDocument(@NotNull final FileViewProvider viewProvider) {
PostprocessReformattingAspect.getInstance(myProject).beforeDocumentChanged(viewProvider);
super.beforeDocumentChangeOnUnlockedDocument(viewProvider);
}
@Override
protected boolean finishCommitInWriteAction(@NotNull Document document,
@NotNull List<Processor<Document>> finishProcessors,
boolean synchronously) {
EditorWindowImpl.disposeInvalidEditors(); // in write action
return super.finishCommitInWriteAction(document, finishProcessors, synchronously);
}
@Override
public boolean isDocumentBlockedByPsi(@NotNull Document doc) {
final FileViewProvider viewProvider = getCachedViewProvider(doc);
return viewProvider != null && PostprocessReformattingAspect.getInstance(myProject).isViewProviderLocked(viewProvider);
}
@Override
public void doPostponedOperationsAndUnblockDocument(@NotNull Document doc) {
if (doc instanceof DocumentWindow) doc = ((DocumentWindow)doc).getDelegate();
final PostprocessReformattingAspect component = myProject.getComponent(PostprocessReformattingAspect.class);
final FileViewProvider viewProvider = getCachedViewProvider(doc);
if (viewProvider != null) component.doPostponedFormatting(viewProvider);
}
@Override
public void save() {
// Ensure all documents are committed on save so file content dependent indices, that use PSI to build have consistent content.
UIUtil.invokeLaterIfNeeded(new Runnable() {
@Override
public void run() {
try {
commitAllDocuments();
}
catch (Exception e) {
LOG.error(e);
}
}
});
}
@Override
@TestOnly
public void clearUncommittedDocuments() {
super.clearUncommittedDocuments();
myDocumentCommitThread.clearQueue();
}
@NonNls
@Override
public String toString() {
return super.toString() + " for the project " + myProject + ".";
}
@Override
public void reparseFiles(@NotNull Collection<VirtualFile> files, boolean includeOpenFiles) {
FileContentUtil.reparseFiles(myProject, files, includeOpenFiles);
}
}
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