101 lines
4.3 KiB
C#
101 lines
4.3 KiB
C#
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/*
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Copyright (C) 2014-2019 de4dot@gmail.com
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This file is part of dnSpy
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dnSpy is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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dnSpy is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.Composition;
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using System.Diagnostics;
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using dnSpy.Contracts.Language.Intellisense;
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using dnSpy.Contracts.Text;
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using dnSpy.Roslyn.Text;
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using Microsoft.VisualStudio.Language.Intellisense;
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using Microsoft.VisualStudio.Text;
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using Microsoft.VisualStudio.Utilities;
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namespace dnSpy.Roslyn.Intellisense.QuickInfo {
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[Export(typeof(IQuickInfoSourceProvider))]
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[Name(PredefinedDsQuickInfoSourceProviders.Roslyn)]
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[ContentType(ContentTypes.RoslynCode)]
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sealed class QuickInfoSourceProvider : IQuickInfoSourceProvider {
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readonly IQuickInfoContentCreatorProvider quickInfoContentCreatorProvider;
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readonly IQuickInfoTriggerServiceProvider quickInfoTriggerServiceProvider;
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[ImportingConstructor]
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QuickInfoSourceProvider(IQuickInfoContentCreatorProvider quickInfoContentCreatorProvider, IQuickInfoTriggerServiceProvider quickInfoTriggerServiceProvider) {
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this.quickInfoContentCreatorProvider = quickInfoContentCreatorProvider;
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this.quickInfoTriggerServiceProvider = quickInfoTriggerServiceProvider;
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}
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public IQuickInfoSource TryCreateQuickInfoSource(ITextBuffer textBuffer) => new QuickInfoSource(textBuffer, quickInfoContentCreatorProvider, quickInfoTriggerServiceProvider);
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}
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sealed class QuickInfoSource : IQuickInfoSource {
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readonly ITextBuffer textBuffer;
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readonly IQuickInfoContentCreatorProvider quickInfoContentCreatorProvider;
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readonly IQuickInfoTriggerServiceProvider quickInfoTriggerServiceProvider;
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public QuickInfoSource(ITextBuffer textBuffer, IQuickInfoContentCreatorProvider quickInfoContentCreatorProvider, IQuickInfoTriggerServiceProvider quickInfoTriggerServiceProvider) {
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this.textBuffer = textBuffer ?? throw new ArgumentNullException(nameof(textBuffer));
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this.quickInfoContentCreatorProvider = quickInfoContentCreatorProvider ?? throw new ArgumentNullException(nameof(quickInfoContentCreatorProvider));
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this.quickInfoTriggerServiceProvider = quickInfoTriggerServiceProvider ?? throw new ArgumentNullException(nameof(quickInfoTriggerServiceProvider));
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}
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static readonly object hasTriggeredQuickInfoKey = new object();
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public void AugmentQuickInfoSession(IQuickInfoSession session, IList<object> quickInfoContent, out ITrackingSpan? applicableToSpan) {
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applicableToSpan = null;
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var qiSession = QuickInfoSession.TryGetSession(session);
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if (qiSession is null) {
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// Mouse hovered over something and the default quick info controller created
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// a quick info session.
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if (session.Properties.ContainsProperty(hasTriggeredQuickInfoKey))
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return;
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session.Properties.AddProperty(hasTriggeredQuickInfoKey, null);
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var point = session.GetTriggerPoint(session.TextView.TextSnapshot);
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if (point is not null)
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quickInfoTriggerServiceProvider.Create(session.TextView).TryTrigger(point.Value, session.TrackMouse);
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return;
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}
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// The item has been fetched async, now show it to the user
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// It's possible for another quick info session to already be active, eg. when
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// hovering over a url in a string, so close it.
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quickInfoTriggerServiceProvider.CloseOtherSessions(session);
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var item = qiSession.Item;
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Debug2.Assert(item is not null);
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if (item is null)
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return;
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var info = qiSession.State;
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Debug.Assert(item.TextSpan.End <= info.Snapshot.Length);
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if (item.TextSpan.End > info.Snapshot.Length)
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return;
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applicableToSpan = info.Snapshot.CreateTrackingSpan(item.TextSpan.ToSpan(), SpanTrackingMode.EdgeInclusive);
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foreach (var o in quickInfoContentCreatorProvider.Create(session.TextView).Create(item))
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quickInfoContent.Add(o);
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}
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public void Dispose() { }
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}
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}
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