From 7141932f32267c78eca1a52dba05aeabb258f9ca Mon Sep 17 00:00:00 2001
From: Alex Wall <alex.wall@wearehathway.com>
Date: Thu, 16 Nov 2017 11:26:49 -0800
Subject: [PATCH] Implementing generic Accessibility labels and voice over for
 the various HUD content types

---
 PKHUD/HUD.swift   | 28 ++++++++++++++++++++++++++++
 PKHUD/PKHUD.swift |  1 +
 2 files changed, 29 insertions(+)

diff --git a/PKHUD/HUD.swift b/PKHUD/HUD.swift
index 5e4b853..73a0e7c 100644
--- a/PKHUD/HUD.swift
+++ b/PKHUD/HUD.swift
@@ -44,6 +44,7 @@ public final class HUD {
     // MARK: Public methods, PKHUD based
     public static func show(_ content: HUDContentType, onView view: UIView? = nil) {
         PKHUD.sharedHUD.contentView = contentView(content)
+        PKHUD.sharedHUD.contentView.setAccessibilityProperties(for: content)
         PKHUD.sharedHUD.show(onView: view)
     }
 
@@ -102,3 +103,30 @@ public final class HUD {
         }
     }
 }
+
+fileprivate extension UIView {
+    fileprivate func setAccessibilityProperties(for content: HUDContentType) {
+        self.accessibilityLabel = "Please wait."
+        switch content {
+        case .success:
+            self.accessibilityLabel = "Success!"
+        case .error:
+            self.accessibilityLabel = "Error!"
+        case .image(_),
+             .rotatingImage(_):
+            self.accessibilityLabel = "Image"
+        case .label(let title):
+            guard let label = title else { break }
+            self.accessibilityLabel = label
+        case .labeledSuccess(let title, let subtitle),
+             .labeledError(let title, let subtitle),
+             .labeledProgress(let title, let subtitle),
+             .labeledImage(_, let title, let subtitle),
+             .labeledRotatingImage(_, let title, let subtitle):
+            guard title != nil || subtitle != nil else { break }
+            self.accessibilityLabel = (title ?? "") + "\n" + (subtitle ?? "")
+        default:
+            self.accessibilityLabel = "Please wait."
+        }
+    }
+}
diff --git a/PKHUD/PKHUD.swift b/PKHUD/PKHUD.swift
index 139e935..9f3a3fd 100644
--- a/PKHUD/PKHUD.swift
+++ b/PKHUD/PKHUD.swift
@@ -132,6 +132,7 @@ open class PKHUD: NSObject {
         } else {
             showContent()
         }
+        UIAccessibilityPostNotification(UIAccessibilityLayoutChangedNotification, self.container.frameView.content)
     }
 
     func showContent() {