1 files changed, 190 insertions, 0 deletions
diff --git a/main/src/addins/MonoDevelop.Debugger/MonoDevelop.Debugger.VSTextView/PinnedWatches/PinnedWatchAdornmentManager.cs b/main/src/addins/MonoDevelop.Debugger/MonoDevelop.Debugger.VSTextView/PinnedWatches/PinnedWatchAdornmentManager.cs
new file mode 100644
index 0000000000..51539ac2cc
--- /dev/null
+++ b/main/src/addins/MonoDevelop.Debugger/MonoDevelop.Debugger.VSTextView/PinnedWatches/PinnedWatchAdornmentManager.cs
@@ -0,0 +1,190 @@
+//
+// PinnedWatchAdornmentManager.cs
+//
+// Author:
+//       Jeffrey Stedfast <jestedfa@microsoft.com>
+//
+// Copyright (c) 2019 Microsoft Corp.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+using System;
+using System.Collections.Generic;
+
+using AppKit;
+using CoreGraphics;
+
+using Microsoft.VisualStudio.Text;
+using Microsoft.VisualStudio.Text.Editor;
+using Microsoft.VisualStudio.Text.Adornments;
+
+using MonoDevelop.Core;
+
+namespace MonoDevelop.Debugger.VSTextView.PinnedWatches
+{
+	sealed class PinnedWatchAdornmentManager : IDisposable
+	{
+		readonly Dictionary<PinnedWatch, NSView> adornments = new Dictionary<PinnedWatch, NSView> ();
+		readonly ICocoaViewFactory cocoaViewFactory;
+		readonly IXPlatAdornmentLayer layer;
+		readonly ICocoaTextView textView;
+		readonly string path;
+		bool debugging;
+
+		public PinnedWatchAdornmentManager (ICocoaViewFactory cocoaViewFactory, ICocoaTextView textView)
+		{
+			path = textView.TextBuffer.GetFilePathOrNull ();
+
+			if (path == null)
+				return;
+
+			DebuggingService.PinnedWatches.WatchAdded += OnWatchAdded;
+			DebuggingService.PinnedWatches.WatchChanged += OnWatchChanged;
+			DebuggingService.PinnedWatches.WatchRemoved += OnWatchRemoved;
+			DebuggingService.DebugSessionStarted += OnDebugSessionStarted;
+			DebuggingService.StoppedEvent += OnDebuggingSessionStopped;
+
+			this.layer = textView.GetXPlatAdornmentLayer ("PinnedWatch");
+			this.cocoaViewFactory = cocoaViewFactory;
+			this.textView = textView;
+
+			//this.textView.LayoutChanged += OnTextViewLayoutChanged;
+
+			if (DebuggingService.IsDebugging) {
+				RenderAllAdornments ();
+				debugging = true;
+			}
+		}
+
+		void OnWatchAdded (object sender, PinnedWatchEventArgs e)
+		{
+			if (!debugging || e.Watch.File != path)
+				return;
+
+			RenderAdornment (e.Watch);
+		}
+
+		void OnWatchChanged (object sender, PinnedWatchEventArgs e)
+		{
+			if (!debugging || e.Watch.File != path)
+				return;
+
+			if (!adornments.TryGetValue (e.Watch, out var adornment))
+				return;
+
+			var view = (PinnedWatchView) ((ICocoaMaterialView) adornment).ContentView;
+
+			view.SetObjectValue (e.Watch.Value);
+		}
+
+		void OnWatchRemoved (object sender, PinnedWatchEventArgs e)
+		{
+			if (!debugging || e.Watch.File != path)
+				return;
+
+			layer.RemoveAdornmentsByTag (e.Watch);
+			adornments.Remove (e.Watch);
+		}
+
+		void RenderAdornment (PinnedWatch watch)
+		{
+			var newSpan = textView.TextSnapshot.SpanFromMDColumnAndLine (watch.Line, watch.Column, watch.EndLine, watch.EndColumn);
+			var trackingSpan = textView.TextSnapshot.CreateTrackingSpan (newSpan, SpanTrackingMode.EdgeInclusive);
+			var span = trackingSpan.GetSpan (textView.TextSnapshot);
+
+			if (textView.TextViewLines == null)
+				return;
+
+			if (!textView.TextViewLines.FormattedSpan.Contains (span.End))
+				return;
+
+			var pinnedWatchView = new PinnedWatchView (watch, DebuggingService.CurrentFrame);
+			var materialView = cocoaViewFactory.CreateMaterialView ();
+			materialView.Material = NSVisualEffectMaterial.WindowBackground;
+			materialView.ContentView = pinnedWatchView;
+			materialView.CornerRadius = 3;
+
+			var view = (NSView) materialView;
+			view.WantsLayer = true;
+
+			try {
+				var charBound = textView.TextViewLines.GetCharacterBounds (span.End);
+				var origin = new CGPoint (
+					Math.Round (charBound.Left),
+					Math.Round (charBound.TextTop + charBound.TextHeight / 2 - view.Frame.Height / 2));
+				view.SetFrameOrigin (origin);
+			} catch (Exception ex) {
+				view.SetFrameOrigin (default);
+				LoggingService.LogInternalError ("https://vsmac.dev/923058", ex);
+			}
+
+			layer.AddAdornment (XPlatAdornmentPositioningBehavior.TextRelative, span, watch, view, null);
+			adornments[watch] = view;
+		}
+
+		void RenderAllAdornments ()
+		{
+			foreach (var watch in DebuggingService.PinnedWatches.GetWatchesForFile (path))
+				RenderAdornment (watch);
+		}
+
+		void OnDebugSessionStarted (object sender, EventArgs e)
+		{
+			if (debugging || !DebuggingService.IsDebugging)
+				return;
+
+			RenderAllAdornments ();
+			debugging = true;
+		}
+
+		void OnDebuggingSessionStopped (object sender, EventArgs e)
+		{
+			if (DebuggingService.IsDebugging)
+				return;
+
+			layer.RemoveAllAdornments ();
+			adornments.Clear ();
+			debugging = false;
+		}
+
+		//void OnTextViewLayoutChanged (object sender, TextViewLayoutChangedEventArgs e)
+		//{
+		//	if (!DebuggingService.IsDebugging)
+		//		return;
+
+		//	layer.RemoveAllAdornments ();
+		//	adornments.Clear ();
+
+		//	RenderAllAdornments ();
+		//}
+
+		public void Dispose ()
+		{
+			if (path == null)
+				return;
+
+			DebuggingService.PinnedWatches.WatchAdded -= OnWatchAdded;
+			DebuggingService.PinnedWatches.WatchChanged -= OnWatchChanged;
+			DebuggingService.PinnedWatches.WatchRemoved -= OnWatchRemoved;
+			DebuggingService.DebugSessionStarted -= OnDebugSessionStarted;
+			DebuggingService.StoppedEvent -= OnDebuggingSessionStopped;
+			//textView.LayoutChanged -= OnTextViewLayoutChanged;
+		}
+	}
+}