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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.openapi.application.ApplicationManager;
import com.intellij.openapi.project.DumbService;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.ModificationTracker;
import com.intellij.psi.PsiDirectory;
import com.intellij.psi.util.PsiModificationTracker;
import com.intellij.util.messages.MessageBus;
import org.jetbrains.annotations.NotNull;
import java.util.concurrent.atomic.AtomicLong;
/**
* @author mike
* Date: Jul 18, 2002
*/
public class PsiModificationTrackerImpl implements PsiModificationTracker, PsiTreeChangePreprocessor {
private final AtomicLong myModificationCount = new AtomicLong(0);
private final AtomicLong myOutOfCodeBlockModificationCount = new AtomicLong(0);
private final AtomicLong myJavaStructureModificationCount = new AtomicLong(0);
private final Listener myPublisher;
public PsiModificationTrackerImpl(Project project) {
final MessageBus bus = project.getMessageBus();
myPublisher = bus.syncPublisher(TOPIC);
bus.connect().subscribe(DumbService.DUMB_MODE, new DumbService.DumbModeListener() {
private void doIncCounter() {
ApplicationManager.getApplication().runWriteAction(new Runnable() {
@Override
public void run() {
incCounter();
}
});
}
@Override
public void enteredDumbMode() {
doIncCounter();
}
@Override
public void exitDumbMode() {
doIncCounter();
}
});
}
public void incCounter() {
myModificationCount.getAndIncrement();
myJavaStructureModificationCount.getAndIncrement();
myOutOfCodeBlockModificationCount.getAndIncrement();
myPublisher.modificationCountChanged();
}
public void incOutOfCodeBlockModificationCounter() {
myModificationCount.getAndIncrement();
myOutOfCodeBlockModificationCount.getAndIncrement();
myPublisher.modificationCountChanged();
}
@Override
public void treeChanged(@NotNull PsiTreeChangeEventImpl event) {
myModificationCount.getAndIncrement();
if (event.getParent() instanceof PsiDirectory) {
myOutOfCodeBlockModificationCount.getAndIncrement();
}
myPublisher.modificationCountChanged();
}
@Override
public long getModificationCount() {
return myModificationCount.get();
}
@Override
public long getOutOfCodeBlockModificationCount() {
return myOutOfCodeBlockModificationCount.get();
}
private final ModificationTracker myOutOfCodeBlockModificationTracker = new ModificationTracker() {
@Override
public long getModificationCount() {
return getOutOfCodeBlockModificationCount();
}
};
@NotNull
@Override
public ModificationTracker getOutOfCodeBlockModificationTracker() {
return myOutOfCodeBlockModificationTracker;
}
@Override
public long getJavaStructureModificationCount() {
return myJavaStructureModificationCount.get();
}
private final ModificationTracker myJavaStructureModificationTracker = new ModificationTracker() {
@Override
public long getModificationCount() {
return getJavaStructureModificationCount();
}
};
@NotNull
@Override
public ModificationTracker getJavaStructureModificationTracker() {
return myJavaStructureModificationTracker;
}
}
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