private void TransactionDone(object sender, TransactionEventArgs e)
{
if (e.Transaction.Operations.Count == 0)
{
return;
}
var dirtying = e.Transaction.Operations.SelectMany(Presentation.Dirtiables.DirtiableManager.GetDirtyingOperations);
var dirtiables = new HashSet <AssetViewModel>(dirtying.SelectMany(x => x.Dirtiables.OfType <AssetViewModel>()));
if (dirtiables.Count > 0)
{
session.NotifyAssetPropertiesChanged(dirtiables);
}
Dispatcher.Invoke(() => transactions.Add(new TransactionViewModel(ServiceProvider, e.Transaction)));
}
private async Task PullSourceFileChanges()
{
var sourceTracker = session.SourceTracker;
var bufferBlock = new BufferBlock <IReadOnlyList <SourceFileChangedData> >();
var changedAssets = new HashSet <AssetViewModel>();
var sourceFileChanges = new List <SourceFileChangedData>();
using (sourceTracker.SourceFileChanged.LinkTo(bufferBlock))
{
sourceTracker.EnableTracking = true;
while (!IsDestroyed)
{
// Await for source file changes
await bufferBlock.OutputAvailableAsync(cancel.Token);
if (cancel.IsCancellationRequested)
{
return;
}
// Try as much as possible to process all changes at once
IList <IReadOnlyList <SourceFileChangedData> > changes;
bufferBlock.TryReceiveAll(out changes);
sourceFileChanges.AddRange(changes.SelectMany(x => x));
if (sourceFileChanges.Count == 0)
{
continue;
}
for (var i = 0; i < sourceFileChanges.Count; i++)
{
var sourceFileChange = sourceFileChanges[i];
// Look first in the assets of the session, then in the list of deleted assets.
var asset = sessionViewModel.GetAssetById(sourceFileChange.AssetId)
?? sessionViewModel.AllPackages.SelectMany(x => x.DeletedAssets).FirstOrDefault(x => x.Id == sourceFileChange.AssetId);
if (asset == null)
{
continue;
}
// We care only about changes that needs to update
if (sourceFileChange.NeedUpdate)
{
switch (sourceFileChange.Type)
{
case SourceFileChangeType.Asset:
// The asset itself has changed and now references a new source
asset.Sources.UpdateUsedHashes(sourceFileChange.Files);
break;
case SourceFileChangeType.SourceFile:
// A source file referenced by the asset has changed
asset.Sources.ComputeNeedUpdateFromSource();
break;
default:
throw new ArgumentOutOfRangeException();
}
}
// The asset has been updated, remove the change data from the list
sourceFileChanges.RemoveAt(i--);
if (!asset.IsDeleted)
{
// We will notify only for undeleted assets
changedAssets.Add(asset);
}
}
// Notify all changed assets at once.
if (changedAssets.Count > 0)
{
sessionViewModel.NotifyAssetPropertiesChanged(changedAssets.ToList());
changedAssets.Clear();
}
}
}
}