TransferFileCommand.cs :  » Network-Clients » iReaper » IReaper » Command » C# / CSharp Open Source

using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
using System.Windows.Forms;
using System.IO;
using IReaper.FileData;
using IReaper.FileUtils;
using IReaper.PathManager;

namespace IReaper.Command{
    class TransferFileCommand : CommandBase
    {
        public override void CommandBody(object sender, params object[] paras)
        {
            //There are 5 parameters at least.
            if(paras.Length < 5)
            {
                throw new ArgumentException();
            }
            //get parameter from params
            CourseFileData[] files = paras[0] as CourseFileData[]; //files.
            OperationType operation = (OperationType)paras[1] ; //operation type : copy/ move
            bool overwrite = (bool)paras[2];// overwrite or not.
            string rootPath = paras[3] as string;
            PathPolicyType policy = (PathPolicyType)paras[4]; // path policy.

            //check parameter.
            if(files == null || rootPath == null)
            {
                throw new ArgumentException();
            }
            DialogResult result = DialogResult.None;
            //
            if(operation == OperationType.Move)
            {
                //
                if (!this.ShowPromotionForContinue())
                { return; }
                else //
                {
                    IReaper.Running.DownloadEngine.PauseDownloadEngine(true);
                }
            }
            Statues.TransferFileWork work = new IReaper.Statues.TransferFileWork(files, operation, overwrite, rootPath, policy);
            work.RunWorkerAsync();
        }

        public override CommandFamily Family
        {
            get { return CommandFamily.Command_FileTransfer; }
        }

        private bool ShowPromotionForContinue()
        {
            DialogResult result = DialogResult.None;

            //CourseFileData.async
            //
            if(SynchronizationContext.Current == CourseFileData.async.SynchronizationContext)
            {
                result = MessageBox.Show(Properties.Resources.StopDownloadEngineWarningMessage,
                                    Properties.Resources.StopDownloadEngineWarningCaptine,
                                    MessageBoxButtons.YesNo,
                                    MessageBoxIcon.Question,
                                    MessageBoxDefaultButton.Button1);
            }
            else
            {
                //create wait handle
                AutoResetEvent wait = new AutoResetEvent(false);
                //start the dialog
                CourseFileData.async.Post(new SendOrPostCallback(delegate(object obj)
                {
                    result = MessageBox.Show(Properties.Resources.StopDownloadEngineWarningMessage,
                                    Properties.Resources.StopDownloadEngineWarningCaptine,
                                    MessageBoxButtons.YesNo,
                                    MessageBoxIcon.Question,
                                    MessageBoxDefaultButton.Button1);
                    //notify.
                    wait.Set();
                }), null);
                wait.WaitOne();
                wait.Close();
            }
            return result == DialogResult.Yes;
        }
    }
}