public void Initialize()
{
backgroundWorker = new BackgroundWorker();
backgroundWorker.WorkerReportsProgress = true;
backgroundWorker.WorkerSupportsCancellation = true;
backgroundWorker.DoWork += new DoWorkEventHandler(DoWork);
backgroundWorker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(RunWorkerCompleted);
backgroundWorker.ProgressChanged += new ProgressChangedEventHandler(ProgressChanged);
parseVideo = new ParseVideo();
}
private void buttonScan_Click(object sender, EventArgs e)
{
Button button = (Button)sender;
if (selectedVideoInfo != null && selectedVideoInfo.videoItem != null)
{
button.Enabled = false;
button.Text = "Scanning..";
string directory = selectedVideoInfo.videoDirectory;
MyLog.Add("Scanning: " + directory);
ParseVideo parseVideo = new ParseVideo();
selectedVideoInfo = parseVideo.ReadDirectory(directory);
subFormFileList.SetList(selectedVideoInfo);
SetForm(selectedVideoInfo);
ListVideoInfo.UpdateVideoInfoList(selectedVideoInfo);
MyFormField.DelayButtonClick(button, "Scan");
}
}
public List <VideoInfosScanSource> ScanSource(List <string> sources, DoWorkEventArgs doWorkEvent)
{
if (sources.Count() == 0)
{
throw new ArgumentException("sources cannot be empty", "sources");
}
ParseVideo parseVideo = new ParseVideo();
// Abort the operation if the user has canceled.
// Note that a call to CancelAsync may have set
// CancellationPending to true just after the
// last invocation of this method exits, so this
// code will not have the opportunity to set the
// DoWorkEventArgs.Cancel flag to true. This means
// that RunWorkerCompletedEventArgs.Cancelled will
// not be set to true in your RunWorkerCompleted
// event handler. This is a race condition.
if (backgroundWorker.CancellationPending)
{
doWorkEvent.Cancel = true;
return(null);
}
// Data structure to hold names of subfolders to be examined for files.
Stack <DirInfo> dirNodes = new Stack <DirInfo>(1000);
List <VideoInfosScanSource> videoInfosScanSources = new List <VideoInfosScanSource>();
percentComplete = 0;
backgroundWorker.ReportProgress(percentComplete, "Processing sources..");
// get the root dirs from each source
int nbrSources = sources.Count();
int processingSource = 0;
foreach (string source in sources)
{
percentComplete = (int)Math.Floor((double)processingSource / (double)nbrSources * 100);
backgroundWorker.ReportProgress(percentComplete, "Scanning source " + source + "..");
List <VideoInfo> videoInfos = new List <VideoInfo>(10000);
string sourceAlias = Config.SourceDirectory2Alias(source);
IEnumerable <string> directories = MyFile.EnumerateDirectories(source, "*", SearchOption.AllDirectories);
int nbrDirectories = directories.Count();
int processingDirectory = 0;
foreach (string directory in directories)
{
MyLog.Add("Scanning: " + directory);
VideoInfo videoInfo = parseVideo.ReadDirectory(directory);
if (videoInfo == null || videoInfo.videoItem == null || videoInfo.videoItem.title == null ||
videoInfo.files == null || videoInfo.files.video == null)
{
processingDirectory++;
continue;
}
videoInfo.sourceAlias = sourceAlias;
videoInfo.videoDirectory = directory;
// see if any existing item or new
videoInfo.index = videoInfos.Count;
string hash = ListVideoInfo.CreateHash(videoInfo);
videoInfo.hash = hash;
VideoInfo foundVideoInfo = ListVideoInfo.FindVideoInfo("hash", hash);
bool bNew = false;
if (foundVideoInfo == null)
{
bNew = true;
}
if (bNew || foundVideoInfo.added == null || foundVideoInfo.added == DateTime.MinValue)
{
videoInfo.added = DateTime.UtcNow;
}
if (bNew || foundVideoInfo.updated == null || foundVideoInfo.updated == DateTime.MinValue)
{
videoInfo.updated = videoInfo.added;
}
if (!bNew)
{
// TODO ? needed? found item in list, merge list item with scanned item, scanned item wins
videoInfo = ListVideoInfo.MergeVideoInfos(foundVideoInfo, videoInfo);
}
videoInfos.Add(videoInfo);
processingDirectory++;
if (processingDirectory % 1 == 0)
{
percentComplete = (int)Math.Floor((double)processingDirectory / (double)nbrDirectories * 100);
string progressMessage = "Scanned " + processingDirectory + " of " + nbrDirectories + " directories\n" + directory.Split(Path.DirectorySeparatorChar).Last() + "..";
// progressMessage = directory.Split(Path.DirectorySeparatorChar).Last() + "..";
backgroundWorker.ReportProgress(percentComplete, progressMessage);
// Thread.Sleep(1000); // dev
if (backgroundWorker.CancellationPending)
{
doWorkEvent.Cancel = true;
return(null);
}
}
} // foreach directory
VideoInfosScanSource videoInfosScanSource = new VideoInfosScanSource();
videoInfosScanSource.videoInfos = videoInfos;
videoInfosScanSource.sourceAlias = sourceAlias;
videoInfosScanSources.Add(videoInfosScanSource);
processingSource++;
} // end foreach source
// add items to main list .. but not here .. in completed event
// ListVideoInfo.Clear();
// ListVideoInfo.AddItems(videoInfos);
percentComplete = 100;
backgroundWorker.ReportProgress(percentComplete, "Completed scan");
// meh, so completed msg shows
Thread.Sleep(500);
return(videoInfosScanSources);
}
