source: trunk/eraser/Eraser.DefaultPlugins/ErasureTargets/SecureMoveErasureTargetConfigurer.cs @ 2517

/* 
 * $Id$
 * Copyright 2008-2012 The Eraser Project
 * Original Author: Joel Low <lowjoel@users.sourceforge.net>
 * Modified By:
 * 
 * This file is part of Eraser.
 * 
 * Eraser is free software: you can redistribute it and/or modify it under the
 * terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 * 
 * Eraser 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 for more details.
 * 
 * A copy of the GNU General Public License can be found at
 * <http://www.gnu.org/licenses/>.
 */

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Text.RegularExpressions;

using Eraser.Util;
using Eraser.Plugins;
using Eraser.Plugins.ExtensionPoints;

namespace Eraser.DefaultPlugins
{
    partial class SecureMoveErasureTargetConfigurer : UserControl, IErasureTargetConfigurer
    {
        public SecureMoveErasureTargetConfigurer()
        {
            InitializeComponent();
            Theming.ApplyTheme(this);
        }

        #region IConfigurer<ErasureTarget> Members

        public void LoadFrom(IErasureTarget target)
        {
            SecureMoveErasureTarget secureMove = target as SecureMoveErasureTarget;
            if (secureMove == null)
                throw new ArgumentException("The provided erasure target type is not " +
                    "supported by this configurer.");

            fromTxt.Text = secureMove.Path;
            toTxt.Text = secureMove.Destination;

            moveFolderRadio.Checked =
                File.Exists(secureMove.Path) || Directory.Exists(secureMove.Path) &&
                (File.GetAttributes(secureMove.Path) & FileAttributes.Directory) != 0;
        }

        public bool SaveTo(IErasureTarget target)
        {
            SecureMoveErasureTarget secureMove = target as SecureMoveErasureTarget;
            if (secureMove == null)
                throw new ArgumentException("The provided erasure target type is not " +
                    "supported by this configurer.");

            secureMove.Path = fromTxt.Text;
            secureMove.Destination = toTxt.Text;
            return true;
        }

        #endregion

        #region ICliConfigurer<ErasureTarget> Members

        public string Help()
        {
            return S._(@"move                Securely moves a file/directory to a new location
  arguments: move=<source>|<destination>");
        }

        public bool ProcessArgument(string argument)
        {
            //The secure move source and target, which are separated by a pipe.
            Regex regex = new Regex("(move=)?(?<source>.*)\\|(?<target>.*)",
                RegexOptions.Compiled | RegexOptions.IgnoreCase | RegexOptions.RightToLeft);
            Match match = regex.Match(argument);

            if (match.Groups["source"].Success && match.Groups["target"].Success)
            {
                //Get the source and destination paths
                fromTxt.Text = match.Groups["source"].Value;
                toTxt.Text = match.Groups["target"].Value;

                //Check the folder radio button if the source is a folder.
                moveFileRadio.Checked = !(
                    moveFolderRadio.Checked = Directory.Exists(fromTxt.Text));
                return true;
            }

            return false;
        }

        #endregion

        private void fromSelectButton_Click(object sender, EventArgs e)
        {
            if (moveFolderRadio.Checked)
                fromTxt.Text = SelectFolder(fromTxt.Text, S._("Select the Source folder"));
            else
                fromTxt.Text = SelectFile(fromTxt.Text, S._("Select the Source file"));
        }

        private void toSelectButton_Click(object sender, EventArgs e)
        {
            if (moveFolderRadio.Checked)
                toTxt.Text = SelectFolder(toTxt.Text, S._("Move Source folder to:"));
            else
                toTxt.Text = SaveFile(toTxt.Text, S._("Save Source file to"));
        }

        private string SelectFile(string currentPath, string description)
        {
            openFileDialog.FileName = currentPath;
            openFileDialog.Title = description;
            if (openFileDialog.ShowDialog(this) == DialogResult.OK)
            {
                return openFileDialog.FileName;
            }

            return string.Empty;
        }

        private string SaveFile(string currentPath, string description)
        {
            saveFileDialog.FileName = currentPath;
            saveFileDialog.Title = description;
            if (saveFileDialog.ShowDialog(this) == DialogResult.OK)
            {
                return saveFileDialog.FileName;
            }

            return string.Empty;
        }

        private string SelectFolder(string currentPath, string description)
        {
            folderDialog.SelectedPath = currentPath;
            folderDialog.Description = description;
            if (folderDialog.ShowDialog(this) == DialogResult.OK)
            {
                return folderDialog.SelectedPath;
            }

            return string.Empty;
        }
    }
}