platform/platform-impl/src/com/intellij/openapi/fileChooser/actions/ShowHiddensAction.java

/*
 * Copyright 2000-2009 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 com.intellij.openapi.fileChooser.actions;

import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.ToggleAction;
import com.intellij.openapi.fileChooser.FileSystemTree;
import com.intellij.openapi.project.DumbAware;

/**
 * @author Vladimir Kondratyev
 */
public final class ShowHiddensAction extends ToggleAction implements DumbAware {
  public boolean isSelected(AnActionEvent e) {
    final FileSystemTree fileSystemTree = e.getData(FileSystemTree.DATA_KEY);
    return fileSystemTree != null && fileSystemTree.areHiddensShown();
  }

  public void setSelected(AnActionEvent e, boolean state) {
    final FileSystemTree fileSystemTree = e.getData(FileSystemTree.DATA_KEY);
    if (fileSystemTree != null) {
      fileSystemTree.showHiddens(state);
    }
  }
}