Mapped accesibility properties

src/GraphicsControls/Controls/GraphicsView.android.cs

@@ -1,4 +1,5 @@
 using System;
+using System.ComponentModel;
 using System.Graphics.Android;
 using Android.Content;
 using Android.Views;
@@ -36,9 +37,20 @@ namespace GraphicsControls.Android
                 e.NewElement.Invalidated += OnDrawInvalidated;
                 SetNativeControl(new NativeGraphicsView(Context));
                 Control.Drawable = Element;
+
+                UpdateAutomationProperties();
             }
         }
 
+        protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
+        {
+            base.OnElementPropertyChanged(sender, e);
+
+            if (e.PropertyName == AutomationProperties.HelpTextProperty.PropertyName ||
+                e.PropertyName == AutomationProperties.NameProperty.PropertyName)
+                UpdateAutomationProperties();
+        }
+
         protected override void OnAttachedToWindow()
         {
             base.OnAttachedToWindow();
@@ -96,5 +108,35 @@ namespace GraphicsControls.Android
         {
             Control?.InvalidateDrawable();
         }
+
+        void UpdateAutomationProperties()
+        {
+            if (Control == null)
+                return;
+
+            var defaultContentDescription = Control.ContentDescription;
+
+            string value = ConcatenateNameAndHelpText(Element);
+
+            var contentDescription = !string.IsNullOrWhiteSpace(value) ? value : defaultContentDescription;
+
+            if (string.IsNullOrWhiteSpace(contentDescription) && Element is Element element)
+                contentDescription = element.AutomationId;
+
+            Control.ContentDescription = contentDescription;
+        }
+
+        internal static string ConcatenateNameAndHelpText(BindableObject Element)
+        {
+            var name = (string)Element.GetValue(AutomationProperties.NameProperty);
+            var helpText = (string)Element.GetValue(AutomationProperties.HelpTextProperty);
+
+            if (string.IsNullOrWhiteSpace(name))
+                return helpText;
+            if (string.IsNullOrWhiteSpace(helpText))
+                return name;
+
+            return $"{name}. {helpText}";
+        }
     }
 }

src/GraphicsControls/Controls/GraphicsView.ios.cs

@@ -49,6 +49,8 @@ namespace GraphicsControls.iOS
                 Control.Drawable = Element;
 
                 UpdateContent();
+                UpdateAutomationHelpText();
+                UpdateAutomationName();
             }
         }
 
@@ -58,6 +60,10 @@ namespace GraphicsControls.iOS
 
             if (e.PropertyName == ContentView.ContentProperty.PropertyName)
                 UpdateContent();
+            else if (e.PropertyName == AutomationProperties.HelpTextProperty.PropertyName)
+                UpdateAutomationHelpText();
+            else if (e.PropertyName == AutomationProperties.NameProperty.PropertyName)
+                UpdateAutomationName();
 
             Control?.InvalidateDrawable();
         }
@@ -173,5 +179,15 @@ namespace GraphicsControls.iOS
             var content = Subviews[0];
             BringSubviewToFront(content);
         }
+
+        void UpdateAutomationHelpText()
+        {
+            Control?.SetAccessibilityHint(Element);
+        }
+
+        void UpdateAutomationName()
+        {
+            Control?.SetAccessibilityLabel(Element);
+        }
     }
 }

src/GraphicsControls/Controls/GraphicsView.macos.cs

@@ -47,6 +47,8 @@ namespace GraphicsControls.Mac
                 Control.Drawable = Element;
 
                 UpdateContent();
+                UpdateAutomationHelpText();
+                UpdateAutomationName();
             }
         }
 
@@ -56,6 +58,10 @@ namespace GraphicsControls.Mac
 
             if (e.PropertyName == ContentView.ContentProperty.PropertyName)
                 UpdateContent();
+            else if (e.PropertyName == AutomationProperties.HelpTextProperty.PropertyName)
+                UpdateAutomationHelpText();
+            else if (e.PropertyName == AutomationProperties.NameProperty.PropertyName)
+                UpdateAutomationName();
 
             Control?.InvalidateDrawable();
         }
@@ -143,5 +149,15 @@ namespace GraphicsControls.Mac
             content.RemoveFromSuperview();
             AddSubview(content);
         }
+
+        void UpdateAutomationHelpText()
+        {
+            Control?.SetAccessibilityHint(Element);
+        }
+
+        void UpdateAutomationName()
+        {
+            Control?.SetAccessibilityLabel(Element);
+        }
     }
 }