1 files changed, 130 insertions, 0 deletions
diff --git a/main/src/addins/MonoDevelop.SourceEditor2/MonoDevelop.SourceEditor/TextMarker/LinkMarker.cs b/main/src/addins/MonoDevelop.SourceEditor2/MonoDevelop.SourceEditor/TextMarker/LinkMarker.cs
new file mode 100644
index 0000000000..c884720dd2
--- /dev/null
+++ b/main/src/addins/MonoDevelop.SourceEditor2/MonoDevelop.SourceEditor/TextMarker/LinkMarker.cs
@@ -0,0 +1,130 @@
+//
+// LinkMarker.cs
+//
+// Author:
+//       Mike Krüger <mkrueger@xamarin.com>
+//
+// Copyright (c) 2014 Xamarin Inc. (http://xamarin.com)
+//
+// 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 MonoDevelop.Ide.Editor;
+using Mono.TextEditor;
+using MonoDevelop.Core;
+
+namespace MonoDevelop.SourceEditor
+{
+	class LinkMarker : UnderlineTextSegmentMarker, ILinkTextMarker, IActionTextLineMarker
+	{
+		static readonly Gdk.Cursor textLinkCursor = new Gdk.Cursor (Gdk.CursorType.Hand1);
+
+		Action<LinkRequest> activateLink;
+
+		public bool OnlyShowLinkOnHover {
+			get;
+			set;
+		}
+
+
+		public LinkMarker (int offset, int length, Action<LinkRequest> activateLink) : base (DefaultSourceEditorOptions.Instance.GetColorStyle ().LinkColor.Color, new TextSegment (offset, length))
+		{
+			this.activateLink = activateLink;
+			this.Wave = false;
+		}
+
+		public event EventHandler<TextMarkerMouseEventArgs> MousePressed;
+		public event EventHandler<TextMarkerMouseEventArgs> MouseHover;
+
+		object ITextSegmentMarker.Tag {
+			get;
+			set;
+		}
+
+		bool IActionTextLineMarker.MousePressed (MonoTextEditor editor, MarginMouseEventArgs args)
+		{
+			MousePressed?.Invoke (this, new TextEventArgsWrapper (args));
+			return false;
+		}
+
+		bool IActionTextLineMarker.MouseReleased (MonoTextEditor editor, MarginMouseEventArgs args)
+		{
+			if ((Platform.IsMac && (args.ModifierState & Gdk.ModifierType.Mod2Mask) == Gdk.ModifierType.Mod2Mask) ||
+			    (!Platform.IsMac && (args.ModifierState & Gdk.ModifierType.ControlMask) == Gdk.ModifierType.ControlMask))
+				activateLink?.Invoke (LinkRequest.RequestNewView);
+			else
+				activateLink?.Invoke (LinkRequest.SameView);
+			
+			return false;
+		}
+
+
+		void IActionTextLineMarker.MouseHover (MonoTextEditor editor, MarginMouseEventArgs args, TextLineMarkerHoverResult result)
+		{
+			MouseHover?.Invoke (this, new TextEventArgsWrapper (args));
+			result.Cursor = textLinkCursor;
+			if (OnlyShowLinkOnHover) {
+				editor.GetTextEditorData ().Document.CommitLineUpdate (args.LineSegment);
+				editor.TextViewMargin.HoveredLineChanged += new UpdateOldLine (editor, args.LineSegment).TextViewMargin_HoveredLineChanged;
+			}
+		}
+
+		class UpdateOldLine
+		{
+			MonoTextEditor editor;
+			DocumentLine lineSegment;
+
+			public UpdateOldLine (MonoTextEditor editor, DocumentLine lineSegment)
+			{
+				this.editor = editor;
+				this.lineSegment = lineSegment;
+			}
+
+			public void TextViewMargin_HoveredLineChanged (object sender, Mono.TextEditor.LineEventArgs e)
+			{
+				editor.GetTextEditorData ().Document.CommitLineUpdate (lineSegment);
+				editor.TextViewMargin.HoveredLineChanged -= TextViewMargin_HoveredLineChanged;
+			}
+		}
+
+		public override void Draw (MonoTextEditor editor, Cairo.Context cr, LineMetrics metrics, int startOffset, int endOffset)
+		{
+			if (OnlyShowLinkOnHover) {
+					if (editor.TextViewMargin.MarginCursor != textLinkCursor)
+					return;
+				if (editor.TextViewMargin.HoveredLine == null)
+					return;
+				var hoverOffset = editor.LocationToOffset (editor.TextViewMargin.HoveredLocation);
+				if (!Segment.Contains (hoverOffset)) 
+					return; 
+			}
+			this.Color = editor.ColorStyle.LinkColor.Color;
+
+			if (!OnlyShowLinkOnHover) {
+				if (editor.TextViewMargin.MarginCursor == textLinkCursor && editor.TextViewMargin.HoveredLine != null) {
+					var hoverOffset = editor.LocationToOffset (editor.TextViewMargin.HoveredLocation);
+					if (Segment.Contains (hoverOffset))
+						this.Color = editor.ColorStyle.ActiveLinkColor.Color;
+				}
+			}
+
+			base.Draw (editor, cr, metrics, startOffset, endOffset);
+		}
+	}
+}
+