/*
* Copyright 2003-2011 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.smodel;
import org.jetbrains.mps.openapi.model.SNode;
public abstract class SNodeUndoableAction {
private final SNode myAffectedNode;
protected SNodeUndoableAction(SNode affectedNode) {
myAffectedNode = affectedNode;
}
public SNode getAffectedNode() {
return myAffectedNode;
}
/**
* Answers the question if this action may be associate with VirtualFile/Document using default logic (rootNode -> VirtualFile).
* This is not true for deleted root nodes (probably to not have memory leak).
* By default clients should use getAffectedNode() method to access affected node and use it's root node in order to access VF associated with it.
*
* @return true if VirtualFile may be calculated from the getAffectedNode() node
*/
public boolean hasVirtualFile() {
return true;
}
/**
* @deprecated since MPS 2017.1 getAffectedNode() & hasVirtualFile() methods are used, to this method will be dropped after MPS 2017.1
*/
@Deprecated
public SNode getRoot() {
return myAffectedNode.getContainingRoot();
}
protected abstract void doUndo();
protected abstract void doRedo();
public final void undo() {
doUndo();
}
public final void redo() {
doRedo();
}
public boolean isGlobal() {
return false;
}
}