Fix profile header images being blurry

Due to the old method using ImageCache.avatars for the headers 🤦

Closes #494

Tusker/Views/CachedImageView.swift

@@ -33,6 +33,11 @@ class CachedImageView: UIImageView {
         commonInit()
     }
     
+    deinit {
+        fetchTask?.cancel()
+        blurHashTask?.cancel()
+    }
+    
     private func commonInit() {
         NotificationCenter.default.addObserver(self, selector: #selector(preferencesChanged), name: .preferencesChanged, object: nil)
     }

Tusker/Views/Profile Header/ProfileHeaderView.swift

@@ -25,9 +25,9 @@ class ProfileHeaderView: UIView {
     weak var delegate: ProfileHeaderViewDelegate?
     var mastodonController: MastodonController! { delegate?.apiController }
 
-    @IBOutlet weak var headerImageView: UIImageView!
+    @IBOutlet weak var headerImageView: CachedImageView!
     @IBOutlet weak var avatarContainerView: UIView!
-    @IBOutlet weak var avatarImageView: UIImageView!
+    @IBOutlet weak var avatarImageView: CachedImageView!
     @IBOutlet weak var moreButton: ProfileHeaderButton!
     @IBOutlet weak var followButton: ProfileHeaderButton!
     @IBOutlet weak var displayNameLabel: AccountDisplayNameLabel!
@@ -44,8 +44,6 @@ class ProfileHeaderView: UIView {
     
     var accountID: String!
     
-    private var imagesTask: Task<Void, Never>?
-    
     private var isGrayscale = false
     private var followButtonMode = FollowButtonMode.follow {
         didSet {
@@ -56,10 +54,6 @@ class ProfileHeaderView: UIView {
         }
     }
     
-    deinit {
-        imagesTask?.cancel()
-    }
-    
     override func awakeFromNib() {
         super.awakeFromNib()
         
@@ -69,11 +63,13 @@ class ProfileHeaderView: UIView {
         avatarContainerView.layer.cornerCurve = .continuous
         // Set zPositions so the gallery presentation/dismissal animation looks correct.
         avatarContainerView.layer.zPosition = 2
+        avatarImageView.cache = .avatars
         avatarImageView.layer.masksToBounds = true
         avatarImageView.layer.cornerCurve = .continuous
         avatarImageView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(avatarPressed)))
         avatarImageView.isUserInteractionEnabled = true
         
+        headerImageView.cache = .headers
         headerImageView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(headerPressed)))
         headerImageView.isUserInteractionEnabled = true
         headerImageView.layer.zPosition = 1
@@ -138,11 +134,11 @@ class ProfileHeaderView: UIView {
         usernameLabel.text = "@\(account.acct)"
         lockImageView.isHidden = !account.locked
         
-        imagesTask?.cancel()
-        let avatar = account.avatar
-        let header = account.header
-        imagesTask = Task {
-            await updateImages(avatar: avatar, header: header)
+        if let avatar = account.avatar {
+            avatarImageView.update(for: avatar)
+        }
+        if let header = account.header {
+            headerImageView.update(for: header)
         }
         
         moreButton.menu = UIMenu(title: "", image: nil, identifier: nil, options: [], children: delegate?.actionsForProfile(accountID: accountID, source: .view(moreButton), fetchRelationship: false) ?? [])
@@ -294,44 +290,6 @@ class ProfileHeaderView: UIView {
         avatarContainerView.layer.cornerRadius = Preferences.shared.avatarStyle.cornerRadius(for: avatarContainerView)
         avatarImageView.layer.cornerRadius = Preferences.shared.avatarStyle.cornerRadius(for: avatarImageView)
         displayNameLabel.updateForAccountDisplayName(account: account)
-        
-        if isGrayscale != Preferences.shared.grayscaleImages {
-            isGrayscale = Preferences.shared.grayscaleImages
-            imagesTask?.cancel()
-            let avatar = account.avatar
-            let header = account.header
-            imagesTask = Task {
-                await updateImages(avatar: avatar, header: header)
-            }
-        }
-    }
-    
-    private nonisolated func updateImages(avatar: URL?, header: URL?) async {
-        await withTaskGroup(of: Void.self) { group in
-            group.addTask {
-                guard let avatar,
-                      let image = await ImageCache.avatars.get(avatar, loadOriginal: true).1,
-                      let transformedImage = await ImageGrayscalifier.convertIfNecessary(url: avatar, image: image),
-                      !Task.isCancelled else {
-                    return
-                }
-                await MainActor.run {
-                    self.avatarImageView.image = transformedImage
-                }
-            }
-            group.addTask {
-                guard let header,
-                      let image = await ImageCache.avatars.get(header, loadOriginal: true).1,
-                      let transformedImage = await ImageGrayscalifier.convertIfNecessary(url: header, image: image),
-                      !Task.isCancelled else {
-                    return
-                }
-                await MainActor.run {
-                    self.headerImageView.image = transformedImage
-                }
-            }
-            await group.waitForAll()
-        }
     }
     
     private func formatBigNumber(_ value: Int) -> (String, String) {

Tusker/Views/Profile Header/ProfileHeaderView.xib

@@ -3,7 +3,7 @@
     <device id="retina6_1" orientation="portrait" appearance="light"/>
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="22684"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="22685"/>
         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
         <capability name="System colors in document resources" minToolsVersion="11.0"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
@@ -14,7 +14,7 @@
         <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="iN0-l3-epB" customClass="ProfileHeaderView" customModule="Tusker" customModuleProvider="target">
             <rect key="frame" x="0.0" y="0.0" width="414" height="896"/>
             <subviews>
-                <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="dgG-dR-lSv">
+                <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="dgG-dR-lSv" customClass="CachedImageView" customModule="Tusker" customModuleProvider="target">
                     <rect key="frame" x="0.0" y="48" width="414" height="150"/>
                     <constraints>
                         <constraint firstAttribute="height" constant="150" id="aCE-CA-XWm"/>
@@ -23,7 +23,7 @@
                 <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="wT9-2J-uSY">
                     <rect key="frame" x="16" y="138" width="120" height="120"/>
                     <subviews>
-                        <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="TkY-oK-if4">
+                        <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="TkY-oK-if4" customClass="CachedImageView" customModule="Tusker" customModuleProvider="target">
                             <rect key="frame" x="2" y="2" width="116" height="116"/>
                             <constraints>
                                 <constraint firstAttribute="height" constant="116" id="eDg-Vc-o8R"/>