Add visiblity and formatting icons

Tusker/Extensions/Visibility+Helpers.swift

@@ -7,6 +7,7 @@
 //
 
 import Pachyderm
+import UIKit
 
 extension Status.Visibility {
     
@@ -23,4 +24,19 @@ extension Status.Visibility {
         }
     }
     
+    var image: UIImage {
+        let name: String
+        switch self {
+        case .public:
+            name = "globe"
+        case .unlisted:
+            name = "lock.open.fill"
+        case .private:
+            name = "lock.fill"
+        case .direct:
+            name = "envelope.fill"
+        }
+        return UIImage(systemName: name)!
+    }
+    
 }

Tusker/Screens/Compose/ComposeViewController.swift

@@ -103,7 +103,7 @@ class ComposeViewController: UIViewController {
         
         let toolbar = UIToolbar()
         contentWarningBarButtonItem = UIBarButtonItem(title: "CW", style: .plain, target: self, action: #selector(contentWarningButtonPressed))
-        visibilityBarButtonItem = UIBarButtonItem(barButtonSystemItem: .action, target: self, action: #selector(visbilityButtonPressed))
+        visibilityBarButtonItem = UIBarButtonItem(image: Preferences.shared.defaultPostVisibility.image, style: .plain, target: self, action: #selector(visibilityButtonPressed))
         toolbar.items = [
             contentWarningBarButtonItem,
             visibilityBarButtonItem,
@@ -193,10 +193,16 @@ class ComposeViewController: UIViewController {
         }
         
         return StatusFormat.allCases.map { (format) in
-            let (str, attributes) = format.title
-            let item = UIBarButtonItem(title: str, style: .plain, target: self, action: #selector(formatButtonPressed(_:)))
+            let item: UIBarButtonItem
+            if let image = format.image {
+                item = UIBarButtonItem(image: image, style: .plain, target: self, action: #selector(formatButtonPressed(_:)))
+            } else if let (str, attributes) = format.title {
+                item = UIBarButtonItem(title: str, style: .plain, target: self, action: #selector(formatButtonPressed(_:)))
                 item.setTitleTextAttributes(attributes, for: .normal)
                 item.setTitleTextAttributes(attributes, for: .highlighted)
+            } else {
+                fatalError("StatusFormat must have either an image or a title")
+            }
             item.tag = StatusFormat.allCases.firstIndex(of: format)!
             return item
         }
@@ -279,7 +285,7 @@ class ComposeViewController: UIViewController {
     }
     
     func visibilityChanged() {
-        // TODO: update visiblity button image
+        visibilityBarButtonItem.image = visibility.image
     }
     
     func saveDraft() {
@@ -349,7 +355,7 @@ class ComposeViewController: UIViewController {
         updateHasChanges()
     }
     
-    @objc func visbilityButtonPressed() {
+    @objc func visibilityButtonPressed() {
         let alertController = UIAlertController(currentVisibility: self.visibility) { (visibility) in
             guard let visibility = visibility else { return }
             self.visibility = visibility

Tusker/Screens/Compose/StatusFormat.swift

@@ -23,16 +23,26 @@ enum StatusFormat: CaseIterable {
         }
     }
     
-    var title: (String, [NSAttributedString.Key: Any]) {
+    var image: UIImage? {
+        let name: String
         switch self {
         case .italics:
-            return ("I", [.font: UIFont.italicSystemFont(ofSize: 17)])
+            name = "italic"
         case .bold:
-            return ("B", [.font: UIFont.boldSystemFont(ofSize: 17)])
+            name = "bold"
         case .strikethrough:
-            return ("S", [.strikethroughStyle: NSNumber(value: NSUnderlineStyle.single.rawValue)])
-        case .code:
+            name = "strikethrough"
+        default:
+            return nil
+        }
+        return UIImage(systemName: name)
+    }
+    
+    var title: (String, [NSAttributedString.Key: Any])? {
+        if self == .code {
             return ("</>", [.font: UIFont(name: "Menlo", size: 17)!])
+        } else {
+            return nil
         }
     }
 }

Tusker/Screens/Utilities/UIAlertController+Visibility.swift

@@ -21,6 +21,7 @@ extension UIAlertController {
             if visibility == currentVisibility {
                 action.setValue(true, forKey: "checked")
             }
+            action.setValue(visibility.image, forKey: "image")
             addAction(action)
         }