[A11y] Add AtkCocoaHelpers to set attributes on CellRenderers

AtkCocoa now attaches the NSAccessibility element to a cell renderer when its
cell data function is being called so that cell renderers with custom data functions
can set accessibility attributes appropriately

2 files changed, 29 insertions, 1 deletions

diff --git a/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.AtkCocoaHelper/AtkCocoaHelperMac.cs b/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.AtkCocoaHelper/AtkCocoaHelperMac.cs
index a7b131ad46..106c8c6066 100644
--- a/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.AtkCocoaHelper/AtkCocoaHelperMac.cs
+++ b/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.AtkCocoaHelper/AtkCocoaHelperMac.cs
@@ -41,7 +41,7 @@ namespace MonoDevelop.Components.AtkCocoaHelper
 	public static class AtkCocoaMacExtensions
 	{
 		const string XamarinPrivateAtkCocoaNSAccessibilityKey = "xamarin-private-atkcocoa-nsaccessibility";
-		internal static INSAccessibility GetNSAccessibilityElement (Atk.Object o)
+		internal static INSAccessibility GetNSAccessibilityElement (GLib.Object o)
 		{
 			IntPtr handle = GtkWorkarounds.GetData (o, XamarinPrivateAtkCocoaNSAccessibilityKey);
 
@@ -90,6 +90,26 @@ namespace MonoDevelop.Components.AtkCocoaHelper
 			nsa.AccessibilityLabel = label;
 		}
 
+		public static void SetAccessibilityLabel (this Gtk.CellRenderer r, string label)
+		{
+			var nsa = GetNSAccessibilityElement (r);
+			if (nsa == null) {
+				return;
+			}
+
+			nsa.AccessibilityLabel = label;
+		}
+
+		public static void SetAccessibilityDescription (this Gtk.CellRenderer r, string description)
+		{
+			var nsa = GetNSAccessibilityElement (r);
+			if (nsa == null) {
+				return;
+			}
+
+			nsa.AccessibilityHelp = description;
+		}
+
 		public static void SetAccessibilityShouldIgnore (this Atk.Object o, bool ignore)
 		{
 			var nsa = GetNSAccessibilityElement (o);
diff --git a/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.AtkCocoaHelper/AtkCocoaHelperNoOp.cs b/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.AtkCocoaHelper/AtkCocoaHelperNoOp.cs
index ba152e1c62..aa4a7a9ae0 100644
--- a/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.AtkCocoaHelper/AtkCocoaHelperNoOp.cs
+++ b/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.AtkCocoaHelper/AtkCocoaHelperNoOp.cs
@@ -38,6 +38,14 @@ namespace MonoDevelop.Components.AtkCocoaHelper
 		{
 		}
 
+		public static void SetAccessibilityLabel (this Gtk.CellRenderer r, string label)
+		{
+		}
+
+		public static void SetAccessibilityDescription (this Gtk.CellRenderer r, string description)
+		{
+		}
+
 		public static void SetAccessibilityShouldIgnore (this Atk.Object o, bool ignore)
 		{
 		}