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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.openide.awt;

import java.util.List;

/** Additional callback interface to decide whether an action shall
 * be enabled on given data or not. Implementation of this interface
 * can be passed to one of the {@link Factory#context} methods in 
 * addition to regular data type to watch for and its {@link ContextSelection}
 * policy.
 *
 * @author Jaroslav Tulach
 */
interface ContextActionEnabler {
    /** Shall the associated action be enabled on given data?
     * 
     * @param data the unmodifiable list of elements to potentially operate on
     */
    public boolean enabled(List data);
}




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