public void PresentItem(ITrackingSpan triggerSpan, QuickInfoItem item, bool trackMouse)
{
AssertIsForeground();
_triggerSpan = triggerSpan;
_item = item;
// It's a new list of items. Either create the editor session if this is the first time, or ask the
// editor session that we already have to recalculate.
if (_editorSessionOpt == null || _editorSessionOpt.IsDismissed)
{
// We're tracking the caret. Don't have the editor do it.
var triggerPoint = triggerSpan.GetStartTrackingPoint(PointTrackingMode.Negative);
_editorSessionOpt = _quickInfoBroker.CreateQuickInfoSession(_textView, triggerPoint, trackMouse: trackMouse);
_editorSessionOpt.Dismissed += (s, e) => OnEditorSessionDismissed();
}
// So here's the deal. We cannot create the editor session and give it the right
// signatures (even though we know what they are). Instead, the session with
// call back into the ISignatureHelpSourceProvider (which is us) to get those
// values. It will pass itself along with the calls back into
// ISignatureHelpSourceProvider. So, in order to make that connection work, we
// add properties to the session so that we can call back into ourselves, get
// the signatures and add it to the session.
if (!_editorSessionOpt.Properties.ContainsProperty(s_augmentSessionKey))
{
_editorSessionOpt.Properties.AddProperty(s_augmentSessionKey, this);
}
_editorSessionOpt.Recalculate();
}
async Task StartTooltipRequestAsync(IQuickInfoSession session, IList <object> quickInfoContent, ITrackingSpan applicableToSpan, SnapshotPoint?triggerPoint, string filePath)
{
// If this position didn't have a classification, then it's uninteresting, and won't have tooltips.
if (applicableToSpan == null)
{
return;
}
// Set the position so we know what request is in process.
inProgressPosition = triggerPoint.Value.Position;
inProgressTooltipData = null;
inProgressApplicableToSpan = null;
// Put dummy content in tooltip while the request in in-flight.
quickInfoContent.Add("Loading...");
// Fire off a request to the service to get the data.
DartAnalysisService analysisService = await provider.DartAnalysisServiceFactory.GetAnalysisServiceAsync().ConfigureAwait(false);
HoverInformation[] hovers = await analysisService.GetHover(filePath, triggerPoint.Value.Position);
// Build the tooltip info if the response was valid.
var tooltipData = BuildTooltip(hovers);
if (!string.IsNullOrWhiteSpace(tooltipData))
{
// Stash the data for the next call, and tell VS to reclaculate now that we have the good info.
inProgressTooltipData = tooltipData;
inProgressApplicableToSpan = buffer.CurrentSnapshot.CreateTrackingSpan(hovers[0].Offset, hovers[0].Length, SpanTrackingMode.EdgeInclusive);
session.Recalculate();
}
else
{
// Otherwise, no valid response, means no tooltip.
session.Dismiss();
}
}
async Task StartTooltipRequestAsync(IQuickInfoSession session, IList<object> quickInfoContent, ITrackingSpan applicableToSpan, SnapshotPoint? triggerPoint, string filePath)
{
// If this position didn't have a classification, then it's uninteresting, and won't have tooltips.
if (applicableToSpan == null)
return;
// Set the position so we know what request is in process.
inProgressPosition = triggerPoint.Value.Position;
inProgressTooltipData = null;
inProgressApplicableToSpan = null;
// Put dummy content in tooltip while the request in in-flight.
quickInfoContent.Add("Loading...");
// Fire off a request to the service to get the data.
DartAnalysisService analysisService = await provider.DartAnalysisServiceFactory.GetAnalysisServiceAsync().ConfigureAwait(false);
HoverInformation[] hovers = await analysisService.GetHover(filePath, triggerPoint.Value.Position);
// Build the tooltip info if the response was valid.
var tooltipData = BuildTooltip(hovers);
if (!string.IsNullOrWhiteSpace(tooltipData))
{
// Stash the data for the next call, and tell VS to reclaculate now that we have the good info.
inProgressTooltipData = tooltipData;
inProgressApplicableToSpan = buffer.CurrentSnapshot.CreateTrackingSpan(hovers[0].Offset, hovers[0].Length, SpanTrackingMode.EdgeInclusive);
session.Recalculate();
}
else
{
// Otherwise, no valid response, means no tooltip.
session.Dismiss();
}
}
