private void IssueIconQuery(string name, string ver, string tfm, PackageGlyphTag t)
{
IPackageFeedSearchJob <IPackageInfo> job = _searchManager.SearchPackageInfo(name, ver, tfm);
EventHandler handler = null;
string currentIcon = null;
handler = (o, e) =>
{
if (job.IsCancelled)
{
job.Updated -= handler;
job = _searchManager.SearchPackageInfo(name, ver, tfm);
job.Updated += handler;
handler(o, e);
return;
}
IPackageInfo package = job.Results.OrderByDescending(x => SemanticVersion.Parse(x.Version)).FirstOrDefault();
if (package != null)
{
if (string.IsNullOrEmpty(package.IconUrl) || package.IconUrl == currentIcon)
{
return;
}
if (Uri.TryCreate(package.IconUrl, UriKind.Absolute, out Uri iconUri))
{
string proposedIcon = package.IconUrl;
ThreadHelper.JoinableTaskFactory.Run(async() =>
{
await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();
if (currentIcon == proposedIcon)
{
return;
}
currentIcon = proposedIcon;
BitmapImage img = new BitmapImage(iconUri);
t.PackageIcon.Source = img;
});
}
}
};
job.Updated += handler;
handler(null, EventArgs.Empty);
}
public PackageInfoControl(string packageId, string version, string tfm, IPackageSearchManager searcher)
{
InitializeComponent();
PackageId.Content = packageId;
Glyph.Source = WpfUtil.MonikerToBitmap(KnownMonikers.NuGet, 32);
Glyph.ImageFailed += OnImageFailed;
_job = searcher.SearchPackageInfo(packageId, version, tfm);
_job.Updated += JobUpdated;
_firstRun = true;
JobUpdated(null, EventArgs.Empty);
}
public static Task <IReadOnlyList <IPackageInfo> > SearchPackageInfo(
this IPackageSearchManager manager,
string packageId, string packageVersion, string tfm,
CancellationToken cancelToken)
{
var search = manager.SearchPackageInfo(packageId, packageVersion, tfm);
if (search.RemainingFeeds.Count == 0)
{
return(Task.FromResult(search.Results));
}
var tcs = new TaskCompletionSource <IReadOnlyList <IPackageInfo> > ();
//making sure we actually unregister the eventhandler is kinda tricky
//it could be already completed, or it could complete after we check but before we register
EventHandler handleSearchUpdated = null;
cancelToken.Register(() => {
search.Cancel();
if (tcs.TrySetCanceled())
{
search.Updated -= handleSearchUpdated;
}
});
handleSearchUpdated = (s, a) => {
if (!cancelToken.IsCancellationRequested && search.RemainingFeeds.Count == 0)
{
if (tcs.TrySetResult(search.Results))
{
search.Updated -= handleSearchUpdated;
}
}
};
search.Updated += handleSearchUpdated;
if (search.RemainingFeeds.Count == 0)
{
handleSearchUpdated(search, EventArgs.Empty);
}
return(tcs.Task);
}
public override Task <TooltipInformation> CreateTooltipInformation(bool smartWrap, CancellationToken cancelToken)
{
return(manager.SearchPackageInfo(packageId, packageVersion, tfm, cancelToken).ContinueWith(
t => PackageSearchHelpers.CreateTooltipInformation(t.Result),
cancelToken, TaskContinuationOptions.ExecuteSynchronously, TaskScheduler.Default));
}