/*
 * 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.netbeans.modules.javascript2.nodejs.spi;

import javax.swing.event.ChangeListener;
import org.netbeans.api.annotations.common.CheckForNull;
import org.netbeans.modules.web.common.api.Version;
import org.openide.filesystems.FileObject;

/**
 *
 * @author Petr Pisl
 */
public interface NodeJsSupport {

    boolean isSupportEnabled();

    /**
     * <b>Warning</b>: This method should not be called in the UI thread!
     * @return version of node.js executable or {@code null} if not known
     * @since 0.9
     */
    @CheckForNull
    Version getVersion();

    /**
     * <b>Warning</b>: This method should not be called in the UI thread!
     * @return documentation URL or {@code null} if not known
     * @since 0.7
     */
    @CheckForNull
    String getDocumentationUrl();

    /**
     * <b>Warning</b>: This method should not be called in the UI thread!
     */
    @CheckForNull
    FileObject getDocumentationFolder();

    void addChangeListener(ChangeListener listener);

    void removeChangeListener(ChangeListener listener);

}
