/*

 * Copyright (c) 2013, 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.

 *

 * 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

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

import test.java.awt.regtesthelpers.Util;

import java.awt.*;

import java.awt.dnd.DnDConstants;

import java.awt.dnd.DragGestureEvent;

import java.awt.dnd.DragGestureListener;

import java.awt.dnd.DragSource;

import java.io.File;

import java.net.URI;

import java.util.Arrays;

import java.util.stream.Collectors;

import java.util.stream.Stream;

class SourceFileListFrame extends Frame implements DragGestureListener {

    private final static int SOURCE_POINT_SHIFT = 3;

    private List list = new List(URIListToFileListBetweenJVMsTest.VISIBLE_RAWS_IN_LIST);

    private File[] files;

    SourceFileListFrame() {

        super("Source File List Frame");

        extractFilesFromTheWorkingDirectory();

        initList();

        initGUI();

        new DragSource().createDefaultDragGestureRecognizer(list,

                DnDConstants.ACTION_COPY,this);

    }

    private void extractFilesFromTheWorkingDirectory() {

        files = new File(System.getProperty("java.home", "")).listFiles();

    }

    private void initList() {

        for (File currFile:files) {

            list.add(currFile.getName());

        }

    }

    private void initGUI() {

        this.addWindowListener(Util.getClosingWindowAdapter());

        this.setLocation(300,250);

        this.add(new Panel().add(list));

        this.pack();

        this.setVisible(true);

    }

    int getNextLocationX() {

        return getX()+getWidth();

    }

    int getNextLocationY() {

        return getY();

    }

    int getDragSourcePointX() {

        return (int)list.getLocationOnScreen().getX()+(list.getWidth()/2);

    }

   int getDragSourcePointY() {

        return (int)list.getLocationOnScreen().getY()+ SOURCE_POINT_SHIFT;

    }

    int getSourceFilesNumber() {

        return files.length;

    }

    public void dragGestureRecognized(DragGestureEvent dge) {

        java.util.List<URI> uriList = Stream.of(list.getItems())

                                                .map(File::new)

                                                .map(File::toURI)

                                                .collect(Collectors.toList());

        dge.startDrag(null, new URIListTransferable(uriList));

    }

}