@Override
public void eventsHappenedInCommand(List<SModelEvent> events) {
for (SModelEvent event : events) {
if (event.getModelDescriptor() == null) continue;
if (!myModels.contains(event.getModelDescriptor().getReference())) continue;
if (event instanceof SModelRootEvent) {
SModelRootEvent modelRootEvent = (SModelRootEvent) event;
SNodeReference rootPointer =
new jetbrains.mps.smodel.SNodePointer(modelRootEvent.getRoot());
if (modelRootEvent.isRemoved() && myNodes.contains(rootPointer)) {
myChanged = true;
return;
}
} else if (event instanceof SModelChildEvent) {
SModelChildEvent modelChildEvent = (SModelChildEvent) event;
SNodeReference childPointer =
new jetbrains.mps.smodel.SNodePointer(
modelChildEvent.getModel().getReference(),
modelChildEvent.getChild().getNodeId());
if (modelChildEvent.isRemoved() && myNodes.contains(childPointer)) {
myChanged = true;
return;
}
}
}
}
@Override
public void beforeRootRemoved(SModelRootEvent event) {
synchronized (myLock) {
removeContextForNode(
new jetbrains.mps.smodel.SNodePointer(
event.getModel().getReference(), event.getRoot().getNodeId()));
}
}
private void processRoot(final SModelRootEvent event) {
SNode root = event.getRoot();
final boolean added = event.isAdded();
if ((added ? root.getModel() == null : root.getModel() != null)) {
return;
}
final SNodeId rootId = root.getNodeId();
runUpdateTask(
new _FunctionTypes._void_P0_E0() {
public void invoke() {
if (added) {
removeChanges(
rootId,
DeleteRootChange.class,
new _FunctionTypes._return_P1_E0<Boolean, DeleteRootChange>() {
public Boolean invoke(DeleteRootChange ch) {
return true;
}
});
buildAndAddChanges(
new _FunctionTypes._void_P1_E0<ChangeSetBuilder>() {
public void invoke(ChangeSetBuilder b) {
b.buildForNode(getOldNode(rootId), event.getRoot());
}
});
} else {
if (removeChanges(
rootId,
AddRootChange.class,
new _FunctionTypes._return_P1_E0<Boolean, AddRootChange>() {
public Boolean invoke(AddRootChange ch) {
return true;
}
})
== 0) {
// root was not added
removeDescendantChanges(rootId);
buildAndAddChanges(
new _FunctionTypes._void_P1_E0<ChangeSetBuilder>() {
public void invoke(ChangeSetBuilder b) {
b.buildForNode(getOldNode(rootId), null);
}
});
}
}
}
},
null,
event);
}