/*
* Copyright 2003-2015 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 jetbrains.mps.nodeEditor.updater;
import jetbrains.mps.nodeEditor.EditorComponent;
import org.jetbrains.mps.openapi.model.SModel;
import org.jetbrains.mps.openapi.model.SModelReference;
import org.jetbrains.mps.openapi.module.SModule;
import org.jetbrains.mps.openapi.module.SRepositoryContentAdapter;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Set;
/**
* User: shatalin
* Date: 11/09/14
*/
class UpdaterRepositoryContentAdapter extends SRepositoryContentAdapter {
private final EditorComponent myEditorComponent;
private SModelReference myModelReference;
private Collection<SModel> myUsedModels = Collections.emptySet();
UpdaterRepositoryContentAdapter(EditorComponent editorComponent) {
myEditorComponent = editorComponent;
}
/**
* We track modelRemoved event for debug purposes - to record corresponding stacktrace within associated EditorComponent.
* May be removed in future.
*/
@Override
public void beforeModelRemoved(SModule module, SModel model) {
if (myModelReference == null) {
return;
}
if (myModelReference.equals(model.getReference())) {
myEditorComponent.setModelDisposedTrace(Thread.currentThread().getStackTrace());
}
stopListening(model);
}
@Override
public void modelReplaced(SModel model) {
if (myUsedModels.contains(model)) {
myEditorComponent.getEditorContext().getRepository().getModelAccess().runReadInEDT(new Runnable() {
@Override
public void run() {
if (myEditorComponent.isDisposed()) {
return;
}
myEditorComponent.rebuildAfterReloadModel();
myEditorComponent.rebuildEditorContent();
}
});
}
}
@Override
protected void stopListening(SModel model) {
// Listeners we try to remove here were added in #setUsedModels. We don't need to track models as they come,
// as we are interested in particular models only. However, here we utilize the fact SRepositoryContentAdapter
// sends out stopListening(SModel) for any mode being removed from a repository (there's no dedicated event,
// as it used to be with SModelRepositoryListener, to tell model is removed as part of module removal.
// In fact, GlobalRepositoriesListener used the same trick, stopListening(SModel) to send out SModelRepositoryListener#modelRemoved)
if (myUsedModels.remove(model)) {
model.removeModelListener(this);
}
}
void setMainModel(SModel model) {
myModelReference = model.getReference();
}
void setUsedModels(Set<SModel> models) {
for (SModel old : myUsedModels) {
old.removeModelListener(this);
}
myUsedModels = new ArrayList<SModel>(models);
for (SModel m : models) {
m.addModelListener(this);
}
}
}