<code-name-base>org.netbeans.spi.palette</code-name-base>

                    <build-prerequisite/>

                    <compile-dependency/>

                    <run-dependency>

                        <release-version>1</release-version>

                        <specification-version>1.47</specification-version>

                    </run-dependency>

                </dependency>

                <dependency>

                    <code-name-base>org.openide.dialogs</code-name-base>

                    <build-prerequisite/>

                    <compile-dependency/>

                    <run-dependency>

                        <specification-version>7.43</specification-version>

                    </run-dependency>

                </dependency>

                <dependency>

/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

 *

 * Copyright (c) 2017 Oracle and/or its affiliates. All rights reserved.

 *

 * Oracle and Java are registered trademarks of Oracle and/or its affiliates.

 * Other names may be trademarks of their respective owners.

 *

 * The contents of this file are subject to the terms of either the GNU

 * General Public License Version 2 only ("GPL") or the Common

 * Development and Distribution License("CDDL") (collectively, the

 * "License"). You may not use this file except in compliance with the

 * License. You can obtain a copy of the License at

 * http://www.netbeans.org/cddl-gplv2.html

 * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

 * specific language governing permissions and limitations under the

 * License.  When distributing the software, include this License Header

 * Notice in each file and include the License file at

 * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the GPL Version 2 section of the License file that

 * accompanied this code. If applicable, add the following below the

 * License Header, with the fields enclosed by brackets [] replaced by

 * your own identifying information:

 * "Portions Copyrighted [year] [name of copyright owner]"

 *

 * If you wish your version of this file to be governed by only the CDDL

 * or only the GPL Version 2, indicate your decision by adding

 * "[Contributor] elects to include this software in this distribution

 * under the [CDDL or GPL Version 2] license." If you do not indicate a

 * single choice of license, a recipient has the option to distribute

 * your version of this file under either the CDDL, the GPL Version 2 or

 * to extend the choice of license to its licensees as provided above.

 * However, if you add GPL Version 2 code and therefore, elected the GPL

 * Version 2 license, then the option applies only if the new code is

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 *

 * Contributor(s):

 */

package org.netbeans.modules.php.twig.editor.palette;

import java.awt.event.ActionEvent;

import java.io.IOException;

import java.util.logging.Level;

import java.util.logging.Logger;

import javax.swing.AbstractAction;

import javax.swing.Action;

import javax.swing.text.JTextComponent;

import org.netbeans.api.editor.mimelookup.MimeRegistration;

import org.netbeans.editor.Utilities;

import org.netbeans.modules.php.twig.editor.gsf.TwigLanguage;

import org.netbeans.spi.palette.DragAndDropHandler;

import org.netbeans.spi.palette.PaletteActions;

import org.netbeans.spi.palette.PaletteController;

import org.netbeans.spi.palette.PaletteFactory;

import org.openide.*;

import org.openide.text.ActiveEditorDrop;

import org.openide.util.Lookup;

import org.openide.util.NbBundle;

import org.openide.util.datatransfer.ExTransferable;

public class TwigPaletteFactory {

    private static final String TWIG_PALETTE_FOLDER = "Palettes/Twig"; // NOI18N

    private static PaletteController controller = null;

    @MimeRegistration(mimeType = TwigLanguage.TWIG_MIME_TYPE, service = PaletteController.class)

    public static PaletteController createPalette() throws IOException {

        if (controller == null) {

            controller = PaletteFactory.createPalette(

                    TWIG_PALETTE_FOLDER,

                    new TwigPaletteActions(),

                    null,

                    new TwigPaletteDragAndDropHandler()

            );

        }

        return controller;

    }

    //~ Inner classes

    private static class TwigPaletteActions extends PaletteActions {

        @Override

        public Action[] getImportActions() {

            return new Action[0];

        }

        @Override

        public Action[] getCustomPaletteActions() {

            return new Action[0];

        }

        @Override

        public Action[] getCustomCategoryActions(Lookup category) {

            return new Action[0];

        }

        @Override

        public Action[] getCustomItemActions(Lookup item) {

            return new Action[0];

        }

        @Override

        public Action getPreferredAction(Lookup item) {

            return new TwigPaletteInsertAction(item);

        }

    }

    private static class TwigPaletteInsertAction extends AbstractAction {

        private static final long serialVersionUID = -2545383594436146990L;

        private final Lookup item;

        TwigPaletteInsertAction(Lookup item) {

            this.item = item;

        }

        @NbBundle.Messages("TwigPaletteInsertAction.ErrorNoFocusedDocument=No document selected. Please select a document to insert the item into.")

        @Override

        public void actionPerformed(ActionEvent event) {

            ActiveEditorDrop drop = item.lookup(ActiveEditorDrop.class);

            JTextComponent target = Utilities.getFocusedComponent();

            if (target == null) {

                String msg = Bundle.TwigPaletteInsertAction_ErrorNoFocusedDocument();

                DialogDisplayer.getDefault().notify(new NotifyDescriptor.Message(msg, NotifyDescriptor.ERROR_MESSAGE));

                return;

            }

            if (drop == null) {

                Logger.getLogger(Logger.GLOBAL_LOGGER_NAME).log(Level.INFO, "{0} doesn''t provide {1}", new Object[]{item.getClass(), ActiveEditorDrop.class}); //NOI18N

                return;

            }

            try {

                drop.handleTransfer(target);

            } finally {

                Utilities.requestFocus(target);

            }

            try {

                PaletteController paletteController = TwigPaletteFactory.createPalette();

                paletteController.clearSelection();

            } catch (IOException ioe) {

                Logger.getLogger(Logger.GLOBAL_LOGGER_NAME).log(Level.INFO, null, ioe);

            }

        }

    }

    private static class TwigPaletteDragAndDropHandler extends DragAndDropHandler {

        public TwigPaletteDragAndDropHandler() {

            super(true);

        }

        @Override

        public void customize(ExTransferable t, Lookup item) {

        }

    }

}

    <folder name="Palettes">

        <folder name="Twig">

            <attr name="paletteDefaultVisible" boolvalue="false"/>

            <file name="HTML.shadow">

                <attr name="originalFile" stringvalue="HTMLPalette/HTML"/>

                <attr name="position" intvalue="100"/>

            </file>

            <file name="HTML_Forms.shadow">

                <attr name="originalFile" stringvalue="HTMLPalette/HTML_Forms"/>

                <attr name="position" intvalue="200"/>

            </file>

        </folder>

    </folder>