ModelEventsSelectionHandler.java

/*
 * 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.nodeEditor.updater;

import jetbrains.mps.nodeEditor.EditorComponent;
import jetbrains.mps.nodeEditor.cells.CellFinderUtil;
import jetbrains.mps.openapi.editor.cells.EditorCell;
import org.jetbrains.mps.openapi.model.SNode;

/**
 * User: shatalin
 * Date: 09/09/14
 */
abstract class ModelEventsSelectionHandler {
  void setEditorSelection(EditorComponent editorComponent, SNode lastSelectedNode) {
    if (editorComponent.getSelectedNode() == null) {
      EditorCell lastSelectedNodeCell = editorComponent.findNodeCell(lastSelectedNode);
      if (lastSelectedNodeCell != null) {
        EditorCell child = CellFinderUtil.findFirstSelectableLeaf(lastSelectedNodeCell);
        if (child != null) {
          editorComponent.changeSelection(child);
        }
      }
    }
  }
}