EditPadProvider.java

/*
 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package jdk.editpad;

import java.util.concurrent.CountDownLatch;
import java.util.function.Consumer;
import javax.swing.SwingUtilities;
import jdk.internal.editor.spi.BuildInEditorProvider;

/**
 * Defines the provider of an Edit Pad implementation.
 *
 * @author Robert Field
 */
public class EditPadProvider implements BuildInEditorProvider {

    /**
     * @return the rank of a provider, greater is better.
     */
    @Override
    public int rank() {
        return 5;
    }

    /**
     * Create an Edit Pad minimal editor.
     *
     * @param windowLabel the label string for the Edit Pad window, or null,
     * for default window label
     * @param initialText the source to load in the Edit Pad
     * @param saveHandler a handler for changed source (can be sent the full source)
     * @param errorHandler a handler for unexpected errors
     */
    @Override
    public void edit(String windowLabel, String initialText,
            Consumer<String> saveHandler, Consumer<String> errorHandler) {
        CountDownLatch closeLock = new CountDownLatch(1);
        SwingUtilities.invokeLater(
                new EditPad(windowLabel, errorHandler, initialText, closeLock::countDown, saveHandler));
        do {
            try {
                closeLock.await();
                break;
            } catch (InterruptedException ex) {
                // ignore and loop
            }
        } while (true);
    }
}