From 1c52fc0e8ee5160ac58b9280fd4a7be788e74d7b Mon Sep 17 00:00:00 2001
From: redstrate <josh@redstrate.com>
Date: Sun, 9 May 2021 22:06:58 -0400
Subject: [PATCH] Fix thumbnail provider

---
 Thumbnail/Thumbnail.entitlements  |   8 +--
 Thumbnail/ThumbnailProvider.swift | 104 ++++++++++++++----------------
 2 files changed, 52 insertions(+), 60 deletions(-)

diff --git a/Thumbnail/Thumbnail.entitlements b/Thumbnail/Thumbnail.entitlements
index f2ef3ae..18aff0c 100644
--- a/Thumbnail/Thumbnail.entitlements
+++ b/Thumbnail/Thumbnail.entitlements
@@ -2,9 +2,9 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
-    <key>com.apple.security.app-sandbox</key>
-    <true/>
-    <key>com.apple.security.files.user-selected.read-only</key>
-    <true/>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+	<key>com.apple.security.files.user-selected.read-only</key>
+	<true/>
 </dict>
 </plist>
diff --git a/Thumbnail/ThumbnailProvider.swift b/Thumbnail/ThumbnailProvider.swift
index ce0c2d6..1a34b1f 100644
--- a/Thumbnail/ThumbnailProvider.swift
+++ b/Thumbnail/ThumbnailProvider.swift
@@ -4,63 +4,55 @@ import Cocoa
 
 class ThumbnailProvider: QLThumbnailProvider {
     override func provideThumbnail(for request: QLFileThumbnailRequest, _ handler: @escaping (QLThumbnailReply?, Error?) -> Void) {
-        let fc: NSFileCoordinator = NSFileCoordinator()
-        let intent: NSFileAccessIntent = NSFileAccessIntent.readingIntent(with: request.fileURL)
-        fc.coordinate(with: [intent], queue: .main) { (err) in
-            if err == nil {
-                do {
-                    guard let archive = Archive(data: try Data(contentsOf: intent.url), accessMode: Archive.AccessMode.read) else {
-                        return
-                    }
-                    
-                    guard let entry = archive[ThumbnailPath] else {
-                        return
-                    }
-                    
-                    guard let thumbnailData = readData(archive: archive, entry: entry) else {
-                        return
-                    }
-                    
-                    let image = NSImage(data: thumbnailData)
-                    
-                    let maximumSize = request.maximumSize
-                    let imageSize = image?.size
-                    
-                    var newImageSize = maximumSize
-                    var contextSize = maximumSize
-                    let aspectRatio = imageSize!.height / imageSize!.width
-                    let proposedHeight = aspectRatio * maximumSize.width
-                    
-                    if proposedHeight <= maximumSize.height {
-                        newImageSize.height = proposedHeight
-                        contextSize.height = max(proposedHeight.rounded(.down), request.minimumSize.height)
-                    } else {
-                        newImageSize.width = maximumSize.height / aspectRatio
-                        contextSize.width = max(newImageSize.width.rounded(.down), request.minimumSize.width)
-                    }
-
-                    let reply: QLThumbnailReply = QLThumbnailReply.init(contextSize: contextSize) { () -> Bool in
-                        if image != nil {
-                            image!.draw(in: CGRect(x: contextSize.width/2 - newImageSize.width/2,
-                                                  y: contextSize.height/2 - newImageSize.height/2,
-                                                  width: newImageSize.width,
-                                                  height: newImageSize.height));
-
-                            return true
-                        } else {
-                            return false
-                        }
-                    }
-                    
-                    handler(reply, nil)
-                } catch {
-                    NSLog("Could not load file \(intent.url.lastPathComponent) to preview it")
-                    handler(nil, nil)
-                }
-            } else {
-                NSLog("Could not find file \(intent.url.lastPathComponent) to preview it")
-                handler(nil, nil)
+        do {
+            guard let archive = Archive(data: try Data(contentsOf: request.fileURL), accessMode: Archive.AccessMode.read) else {
+                return
             }
+            
+            guard let entry = archive[ThumbnailPath] else {
+                return
+            }
+            
+            guard let thumbnailData = readData(archive: archive, entry: entry) else {
+                return
+            }
+            
+            let image = NSImage(data: thumbnailData)
+            
+            let maximumSize = request.maximumSize
+            let imageSize = image?.size
+            
+            var newImageSize = maximumSize
+            var contextSize = maximumSize
+            let aspectRatio = imageSize!.height / imageSize!.width
+            let proposedHeight = aspectRatio * maximumSize.width
+            
+            if proposedHeight <= maximumSize.height {
+                newImageSize.height = proposedHeight
+                contextSize.height = max(proposedHeight.rounded(.down), request.minimumSize.height)
+            } else {
+                newImageSize.width = maximumSize.height / aspectRatio
+                contextSize.width = max(newImageSize.width.rounded(.down), request.minimumSize.width)
+            }
+            
+            let reply: QLThumbnailReply = QLThumbnailReply.init(contextSize: contextSize) { () -> Bool in
+                if image != nil {
+                    image!.draw(in: CGRect(x: contextSize.width/2 - newImageSize.width/2,
+                                           y: contextSize.height/2 - newImageSize.height/2,
+                                           width: newImageSize.width,
+                                           height: newImageSize.height));
+                    
+                    return true
+                } else {
+                    return false
+                }
+            }
+            
+            handler(reply, nil)
+        } catch {
+            NSLog("Could not access file \(request.fileURL.lastPathComponent) to preview it")
+            handler(nil, nil)
         }
     }
 }
+