/*
* Copyright 2003-2014 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 jetbrains.mps.openapi.editor.commands;
import org.jetbrains.mps.openapi.model.SNode;
/**
* User: shatalin
* Date: 09/10/14
*/
public interface CommandContext {
void commandStarted();
void commandFinished();
/**
* Returning contextual node to associate undo context with it. Usually contextual node is a
* root node (of a node opened in an editor). Contextual node has VirtualFile associated with it.
*
* @return contextual node or null if current editor has no node inside
*/
SNode getContextNode();
}