#pragma warning disable 618
// Bug #512117: Remove compatibility shims for 2nd gen. Quick Info APIs.
// ILegacyQuickInfoMetadata should be removed and switched out for IOrderableContentTypeMetadata.
public AsyncQuickInfoSession(
IEnumerable <Lazy <IAsyncQuickInfoSourceProvider, IOrderableContentTypeMetadata> > orderedSourceProviders,
JoinableTaskContext joinableTaskContext,
ITextView textView,
ITrackingPoint triggerPoint,
QuickInfoSessionOptions options,
PropertyCollection propertyCollection = null)
{
#pragma warning restore 618
this.orderedSourceProviders = orderedSourceProviders ?? throw new ArgumentNullException(nameof(orderedSourceProviders));
this.JoinableTaskContext = joinableTaskContext ?? throw new ArgumentNullException(nameof(joinableTaskContext));
this.TextView = textView ?? throw new ArgumentNullException(nameof(textView));
this.triggerPoint = triggerPoint ?? throw new ArgumentNullException(nameof(triggerPoint));
this.Options = options;
// Bug #512117: Remove compatibility shims for 2nd gen. Quick Info APIs.
// We can remove this null check once we remove the legacy APIs.
this.Properties = propertyCollection ?? new PropertyCollection();
// Trigger point must be a tracking point on the view's buffer.
if (triggerPoint.TextBuffer != textView.TextBuffer)
{
throw new ArgumentException("The specified ITextSnapshot doesn't belong to the correct TextBuffer");
}
}
public async Task <IAsyncQuickInfoSession> TriggerQuickInfoAsync(
ITextView textView,
ITrackingPoint triggerPoint,
QuickInfoSessionOptions options,
CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
// Caret element requires UI thread.
await this.joinableTaskContext.Factory.SwitchToMainThreadAsync();
// We switched threads and there is some latency, so ensure that we're still not canceled.
cancellationToken.ThrowIfCancellationRequested();
// Dismiss any currently open session.
var currentSession = this.GetSession(textView);
if (currentSession != null)
{
await currentSession.DismissAsync();
}
// Get the trigger point from the caret if none is provided.
triggerPoint = triggerPoint ?? textView.TextSnapshot.CreateTrackingPoint(
textView.Caret.Position.BufferPosition,
PointTrackingMode.Negative);
var newSession = new AsyncQuickInfoSession(
this.OrderedSourceProviders,
this.guardedOperations,
this.joinableTaskContext,
this.toolTipService,
textView,
triggerPoint,
options,
null);
// StartAsync() is responsible for dispatching a StateChange
// event if canceled so no need to clean these up on cancellation.
newSession.StateChanged += this.OnStateChanged;
textView.Properties.AddProperty(typeof(AsyncQuickInfoSession), newSession);
try
{
await newSession.StartAsync(cancellationToken);
}
catch (OperationCanceledException) when(!cancellationToken.IsCancellationRequested)
{
// Don't throw OperationCanceledException unless the caller canceled us.
// This can happen if computation was canceled by a quick info source
// dismissing the session during computation, which we want to consider
// more of a 'N/A' than an error.
return(null);
}
return(newSession);
}
public Task <IAsyncQuickInfoSession> TriggerQuickInfoAsync(
ITextView textView,
ITrackingPoint triggerPoint,
QuickInfoSessionOptions options,
CancellationToken cancellationToken)
{
return(this.TriggerQuickInfoAsync(
textView,
triggerPoint,
options,
null,
cancellationToken));
}
// Bug #512117: Remove compatibility shims for 2nd gen. Quick Info APIs.
// This overload exists only to expose additional functionality required
// by the shims.
#region ILegacyQuickInfoBrokerSupport
public async Task <IAsyncQuickInfoSession> TriggerQuickInfoAsync(
ITextView textView,
ITrackingPoint triggerPoint,
QuickInfoSessionOptions options,
PropertyCollection propertyCollection,
CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
// Dismiss any currently open session.
var currentSession = this.GetSession(textView);
if (currentSession != null)
{
await currentSession.DismissAsync().ConfigureAwait(true);
}
triggerPoint = await this.ResolveAndMapUpTriggerPointAsync(textView, triggerPoint, cancellationToken).ConfigureAwait(false);
if (triggerPoint == null)
{
return(null);
}
var newSession = new AsyncQuickInfoPresentationSession(
this.OrderedSourceProviders,
this.guardedOperations,
this.joinableTaskContext,
this.toolTipService,
textView,
triggerPoint,
options,
propertyCollection);
// StartAsync() is responsible for dispatching a StateChange
// event if canceled so no need to clean these up on cancellation.
newSession.StateChanged += this.OnStateChanged;
textView.Properties.AddProperty(typeof(AsyncQuickInfoPresentationSession), newSession);
return(await StartQuickInfoSessionAsync(newSession, cancellationToken).ConfigureAwait(false));
}
public Task <IAsyncQuickInfoSession> TriggerQuickInfoAsync(ITextView textView, ITrackingPoint triggerPoint = null, QuickInfoSessionOptions options = QuickInfoSessionOptions.None, CancellationToken cancellationToken = new CancellationToken())
{
throw new NotImplementedException();
}
