From fd611d1f0412cc2663eb15919b790052457de4cf Mon Sep 17 00:00:00 2001
From: Shadowfacts <me@shadowfacts.net>
Date: Tue, 2 Oct 2018 13:45:39 -0400
Subject: [PATCH] Cache profile header images

---
 Tusker/ImageCache.swift                              |  1 +
 .../Profile Header/ProfileHeaderTableViewCell.swift  | 12 ++++++------
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/Tusker/ImageCache.swift b/Tusker/ImageCache.swift
index fecb6ea5e5..5248d4af09 100644
--- a/Tusker/ImageCache.swift
+++ b/Tusker/ImageCache.swift
@@ -12,6 +12,7 @@ import Cache
 class ImageCache {
     
     static let avatars = ImageCache(name: "Avatars")
+    static let headers = ImageCache(name: "Headers")
 
     let storage: Storage<UIImage>
     
diff --git a/Tusker/Views/Profile Header/ProfileHeaderTableViewCell.swift b/Tusker/Views/Profile Header/ProfileHeaderTableViewCell.swift
index a59c2c72de..aa77163034 100644
--- a/Tusker/Views/Profile Header/ProfileHeaderTableViewCell.swift	
+++ b/Tusker/Views/Profile Header/ProfileHeaderTableViewCell.swift	
@@ -28,8 +28,7 @@ class ProfileHeaderTableViewCell: UITableViewCell, PreferencesAdaptive {
     var accountID: String!
     
     var avatarURL: URL?
-    
-    var headerImageDownloadTask: URLSessionDataTask?
+    var headerURL: URL?
     
     override func awakeFromNib() {
         avatarContainerView.layer.masksToBounds = true
@@ -65,14 +64,12 @@ class ProfileHeaderTableViewCell: UITableViewCell, PreferencesAdaptive {
                 self.avatarURL = nil
             }
         }
-        headerImageDownloadTask = URLSession.shared.dataTask(with: account.header) { data, response, error in
-            guard error == nil, let data = data, let image = UIImage(data: data) else { return }
+        ImageCache.headers.get(account.header) { (image) in
             DispatchQueue.main.async {
                 self.headerImageView.image = image
-                self.headerImageDownloadTask = nil
+                self.headerURL = nil
             }
         }
-        headerImageDownloadTask!.resume()
         
         noteLabel.setTextFromHtml(account.note)
         
@@ -91,6 +88,9 @@ class ProfileHeaderTableViewCell: UITableViewCell, PreferencesAdaptive {
         if let url = avatarURL {
             ImageCache.avatars.cancel(url)
         }
+        if let url = headerURL {
+            ImageCache.headers.cancel(url)
+        }
     }
     
     @IBAction func morePressed(_ sender: Any) {