/// <summary>
/// 添加歌曲
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void AddSong(object sender, RoutedEventArgs e)
{
var menuItem = (MenuItem)sender;
var contextMenu = (ContextMenu)menuItem.Parent;
var items = (DataGrid)contextMenu.PlacementTarget;
if (items.SelectedCells.Count == 0)
{
return;
}
var item = items.SelectedCells[0].Item as SongsSearchModule;
if (item == null)
{
return;
}
InputDialog i = new InputDialog("歌曲名字：", "", "添加歌曲");
if (i.ShowDialog() == true && i.Answer != string.Empty)
{
SongItem song = item.SafeSearch(Config.MASTER_NAME, System.Web.HttpUtility.UrlEncode(i.Answer), Config.needLyric);
if (song != null)
{
Center.AddSong(song);
Center.Logg("手动添加歌曲成功：" + song.SongName);
}
}
i = null;
}
private static void onDownloadFileCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
{
bool sucFlag = true;
if (e.Cancelled)
{
Center.Logg("下载被取消");
Center.Mainw.setDownloadStatus("下载被取消");
sucFlag = false;
try
{ File.Delete(dlItem.FilePath); }
catch (Exception) { }
}
else if (e.Error != null)
{
Center.Logg("下载出错 " + e.Error.Message, true, true);
Center.Mainw.setDownloadStatus("下载出错 " + e.Error.Message);
sucFlag = false;
}
if (sucFlag)
{
Center.Logg("歌曲下载 下载成功：" + dlItem._SongName, false, true);
Center.Mainw.setDownloadStatus("下载完毕");
dlItem.setStatus(SongItem.SongStatus.WaitingPlay);
}
else
{
Center.RemoveSong(dlItem);
}
DownloadWatchDog.Stop();
wc = null;
downloadFlag = false; // 允许进行下一首歌的下载
}
internal static void Init()
{
new Thread(() =>
{
while (true)
{
try
{
Thread.Sleep(1000);
if (running && time != zero)
{
if ((DateTime.Now - time) >= new TimeSpan(0, 0, second))
{
Center.Logg("下载速度长时间过慢，自动切断下载", true, true);
DownloadControl.CancelDownload();
}
}
}
catch (Exception) { }
}
})
{
Name = "DownloadWatchDog", IsBackground = true
}.Start();
}
private static void Download(SongItem item)
{
try
{ Directory.CreateDirectory(Config.SongsCachePath); }
catch (Exception) { }
dlItem = item;
dlItem.setStatus(SongItem.SongStatus.Downloading);
if (item.Module.HandleDownlaod) // 如果搜索模块负责下载文件
{
Center.Mainw.setDownloadStatus("由搜索模块负责下载中");
switch (item.Module.SafeDownload(item))
{
case 1: // 下载成功
dlItem.setStatus(SongItem.SongStatus.WaitingPlay);
Center.Logg("歌曲下载 下载成功：" + item._SongName);
Center.Mainw.setDownloadStatus("搜索模块返回下载成功");
return;
case 0: // 下载失败 错误信息由module输出
default:
Center.RemoveSong(item);
Center.Mainw.setDownloadStatus("搜索模块返回下载失败");
return;
}
}
else // 如果搜索模块不负责下载文件
{
wc = new WebClient();
wc.DownloadProgressChanged += onDownloadProgressChanged;
wc.DownloadFileCompleted += onDownloadFileCompleted;
wc.Headers.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.450 Safari/537.35");
try
{
sw.Reset();
lastUpdateDownloadedSize = 0;
lastUpdateTime = DateTime.Now;
wc.DownloadFileAsync(new Uri(item._DownloadURL), item._FilePath);
Center.Mainw.setDownloadStatus("正在连接服务器");
sw.Start();
DownloadWatchDog.Start();
downloadFlag = true; // 正在下载歌曲
}
catch (Exception ex)
{
sw.Reset();
Center.Logg("下载歌曲" + item._SongName + "出错：" + ex.Message, true, true);
Center.Mainw.setDownloadStatus("下载失败：" + ex.Message);
}
while (downloadFlag)
{
Thread.Sleep(500);
}
dlItem = null;
}
}
/// <summary>
/// 从文件和播放列表里移除歌曲
/// </summary>
/// <param name="song"></param>
private static void RemoveSong(SongItem song)
{
try
{
File.Delete(song._FilePath);
}
catch (System.Exception ex)
{
Center.Logg("播放模块 删除歌曲缓存失败：" + ex.Message);
}
Center.RemoveSong(song);
}
