/// <summary>
/// Main Download method
/// </summary>
/// <param name="fileName"></param>
/// <param name="fileNameIndex"></param>
/// <param name="totalCount"></param>
/// <param name="AUTO_DECRYPT"></param>
/// <returns></returns>
private async Task DownloadFiles(string fileName, int fileNameIndex, int totalCount, AUTO_DECRYPT AUTO_DECRYPT)
{
SetNoticesText("正在下载 ... " + _downloadDoneList.Count + " / " + totalCount, downloadNotice);
if (IsSeveralFiles)
{
_downloadProcessMessageHandler.HttpReceiveProgress += (senders, es) =>
{
var num = es.ProgressPercentage;
SetProgressInt(num);
}
}
;
_downloadDoneList.Add(await _request.MakeGetRequest(Define.GetUrl(fileName), Define.GetFileSavePath(),
fileName));
SetNoticesText("正在下载 ... " + _downloadDoneList.Count + " / " + totalCount, downloadNotice);
if (!IsSeveralFiles)
{
ReloadProcess(totalCount);
}
if (AUTO_DECRYPT == AUTO_DECRYPT.Auto)
{
if (Save.GetFileType(fileName) != ENC_TYPE.ERROR)
{
DecryptFiles.DecryptFile(Define.GetFileSavePath() + fileName,
Crypt.Crypt.IdentifyEncVersion(fileName));
}
}
OnDownloadDone(totalCount);
}
private void Button_OpenDownloadPath_Click(object sender, EventArgs e)
{
if (!Directory.Exists(Define.GetFileSavePath()))
{
Directory.CreateDirectory(Define.GetFileSavePath());
}
Process.Start("Explorer.exe", Define.GetFileSavePath());
}
/// <summary>
/// Main control download method.
/// </summary>
/// <param name="downloadType">下载类型:少量下载或大量下载</param>
private async void StartDownload(DOWNLOAD_TYPE downloadType)
{
if (!Directory.Exists(Define.GetFileSavePath()))
{
Directory.CreateDirectory(Define.GetFileSavePath());
}
//Initialize the UI about download
SetProgressInt(0);
button_DownloadCancel.Visible = true;
string[] willDownloadList;
int totalCount;
var nowFileIndex = 0;
switch (downloadType)
{
case DOWNLOAD_TYPE.AllFiles:
totalCount = _listResult.Length;
willDownloadList = _listResult;
break;
case DOWNLOAD_TYPE.SeletFiles:
totalCount = listBoxResult.SelectedItems.Count;
if (totalCount < 1)
{
MessageBox.Show(@"未选择要下载的文件，请点击选择某项或多项文件，再开始下载。", "Notice");
button_DownloadCancel.Visible = false;
return;
}
var checkedNameList = new string[totalCount];
for (var i = 0; i < totalCount; i++)
{
checkedNameList[i] = listBoxResult.SelectedItems[i].ToString();
}
willDownloadList = checkedNameList;
break;
default:
totalCount = _listResult.Length;
willDownloadList = _listResult;
break;
}
//Start Downlaod
try
{
var cancelToken = CancelSource.Token;
var scheduler = new LimitedConcurrencyLevelTaskScheduler(Define.MaxDownloadTasks);
var downloadTaskFactory = new TaskFactory(scheduler);
if (totalCount <= 15)
{
IsSeveralFiles = true;
foreach (var fileName in willDownloadList)
{
await downloadTaskFactory.StartNew(async nowFileName =>
{
nowFileIndex++;
await DownloadFiles(fileName, nowFileIndex, totalCount, AUTO_DECRYPT.Auto);
}, fileName);
}
}
else
{
IsSeveralFiles = false;
Define.DownloadTaskSleep = totalCount < 200 ? 100 : totalCount > 1000 ? 500 : totalCount / 3;
foreach (var fileName in willDownloadList)
{
await downloadTaskFactory.StartNew(async nowFileName =>
{
nowFileIndex++;
Thread.Sleep(nowFileIndex % 25 == 0
? 500
: Define.DownloadTaskSleep);
await DownloadFiles(nowFileName.ToString(), nowFileIndex, totalCount, AUTO_DECRYPT.Auto);
}, fileName, cancelToken);
}
}
cancelToken.ThrowIfCancellationRequested();
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
}
