feat: thumbnail icon

QLApps.xcodeproj/project.pbxproj

@@ -21,6 +21,18 @@
 		545459C52EA469EA002892E5 /* template.html in Resources */ = {isa = PBXBuildFile; fileRef = 54D3A6F32EA4603B001EF4F6 /* template.html */; };
 		545459C72EA4773A002892E5 /* AppIcon+Car.swift in Sources */ = {isa = PBXBuildFile; fileRef = 545459C62EA4773A002892E5 /* AppIcon+Car.swift */; };
 		545459C92EA47C37002892E5 /* Plist.swift in Sources */ = {isa = PBXBuildFile; fileRef = 545459C82EA47C37002892E5 /* Plist.swift */; };
+		54581FD12EB29A0B0043A0B3 /* QuickLookThumbnailing.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 54581FD02EB29A0B0043A0B3 /* QuickLookThumbnailing.framework */; };
+		54581FD22EB29A0B0043A0B3 /* Quartz.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 54442C222E378BAF008A870E /* Quartz.framework */; };
+		54581FDA2EB29A0B0043A0B3 /* QLThumbnail.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = 54581FCF2EB29A0B0043A0B3 /* QLThumbnail.appex */; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
+		54581FE42EB29A2B0043A0B3 /* CoreUI.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 54D3A6F52EA4610B001EF4F6 /* CoreUI.framework */; };
+		54581FEF2EB29A570043A0B3 /* Shared.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5405CF5D2EA1199B00613856 /* Shared.swift */; };
+		54581FF02EB29A5E0043A0B3 /* AppIcon.swift in Sources */ = {isa = PBXBuildFile; fileRef = 54D3A6ED2EA39CC6001EF4F6 /* AppIcon.swift */; };
+		54581FF12EB29A620043A0B3 /* AppIcon+Car.swift in Sources */ = {isa = PBXBuildFile; fileRef = 545459C62EA4773A002892E5 /* AppIcon+Car.swift */; };
+		54581FF72EB29A820043A0B3 /* Zip.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5405CF642EA1376B00613856 /* Zip.swift */; };
+		54581FFD2EB29AB70043A0B3 /* Plist.swift in Sources */ = {isa = PBXBuildFile; fileRef = 545459C82EA47C37002892E5 /* Plist.swift */; };
+		545820032EB29B0A0043A0B3 /* RoundedIcon.swift in Sources */ = {isa = PBXBuildFile; fileRef = 54D3A6EF2EA3F49F001EF4F6 /* RoundedIcon.swift */; };
+		545820222EB29B3D0043A0B3 /* ThumbnailProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5458201F2EB29B3D0043A0B3 /* ThumbnailProvider.swift */; };
+		545820232EB29B4C0043A0B3 /* defaultIcon.png in Resources */ = {isa = PBXBuildFile; fileRef = 54D3A6F22EA4603B001EF4F6 /* defaultIcon.png */; };
 		5469E11D2EA5930C00D46CE7 /* Entitlements.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5469E11C2EA5930C00D46CE7 /* Entitlements.swift */; };
 		54D3A6EC2EA31B52001EF4F6 /* AppCategories.swift in Sources */ = {isa = PBXBuildFile; fileRef = 54D3A6EB2EA31B52001EF4F6 /* AppCategories.swift */; };
 		54D3A6EE2EA39CC6001EF4F6 /* AppIcon.swift in Sources */ = {isa = PBXBuildFile; fileRef = 54D3A6ED2EA39CC6001EF4F6 /* AppIcon.swift */; };
@@ -38,6 +50,13 @@
 			remoteGlobalIDString = 54442C1F2E378BAF008A870E;
 			remoteInfo = QLPreview;
 		};
+		54581FD82EB29A0B0043A0B3 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 54442BEC2E378B71008A870E /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 54581FCE2EB29A0B0043A0B3;
+			remoteInfo = QLThumbnail;
+		};
 /* End PBXContainerItemProxy section */
 
 /* Begin PBXCopyFilesBuildPhase section */
@@ -47,6 +66,7 @@
 			dstPath = "";
 			dstSubfolderSpec = 13;
 			files = (
+				54581FDA2EB29A0B0043A0B3 /* QLThumbnail.appex in Embed Foundation Extensions */,
 				54442C302E378BAF008A870E /* QLPreview.appex in Embed Foundation Extensions */,
 			);
 			name = "Embed Foundation Extensions";
@@ -71,9 +91,13 @@
 		54442C772E378BE0008A870E /* QLPreview.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = QLPreview.entitlements; sourceTree = "<group>"; };
 		545459C62EA4773A002892E5 /* AppIcon+Car.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "AppIcon+Car.swift"; sourceTree = "<group>"; };
 		545459C82EA47C37002892E5 /* Plist.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Plist.swift; sourceTree = "<group>"; };
+		54581FCF2EB29A0B0043A0B3 /* QLThumbnail.appex */ = {isa = PBXFileReference; explicitFileType = "wrapper.app-extension"; includeInIndex = 0; path = QLThumbnail.appex; sourceTree = BUILT_PRODUCTS_DIR; };
+		54581FD02EB29A0B0043A0B3 /* QuickLookThumbnailing.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = QuickLookThumbnailing.framework; path = System/Library/Frameworks/QuickLookThumbnailing.framework; sourceTree = SDKROOT; };
+		5458201D2EB29B3D0043A0B3 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		5458201E2EB29B3D0043A0B3 /* QLThumbnail.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = QLThumbnail.entitlements; sourceTree = "<group>"; };
+		5458201F2EB29B3D0043A0B3 /* ThumbnailProvider.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ThumbnailProvider.swift; sourceTree = "<group>"; };
 		5469E11C2EA5930C00D46CE7 /* Entitlements.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Entitlements.swift; sourceTree = "<group>"; };
 		5485EE362EB1460C009E3905 /* Network.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Network.framework; path = System/Library/Frameworks/Network.framework; sourceTree = SDKROOT; };
-		54D3A6E52EA31B13001EF4F6 /* ThumbnailGenerator.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ThumbnailGenerator.swift; sourceTree = "<group>"; };
 		54D3A6EB2EA31B52001EF4F6 /* AppCategories.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppCategories.swift; sourceTree = "<group>"; };
 		54D3A6ED2EA39CC6001EF4F6 /* AppIcon.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppIcon.swift; sourceTree = "<group>"; };
 		54D3A6EF2EA3F49F001EF4F6 /* RoundedIcon.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RoundedIcon.swift; sourceTree = "<group>"; };
@@ -110,6 +134,16 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		54581FCC2EB29A0B0043A0B3 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				54581FD12EB29A0B0043A0B3 /* QuickLookThumbnailing.framework in Frameworks */,
+				54581FD22EB29A0B0043A0B3 /* Quartz.framework in Frameworks */,
+				54581FE42EB29A2B0043A0B3 /* CoreUI.framework in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
@@ -124,7 +158,6 @@
 				545459C82EA47C37002892E5 /* Plist.swift */,
 				5405CF642EA1376B00613856 /* Zip.swift */,
 				5469E11C2EA5930C00D46CE7 /* Entitlements.swift */,
-				54D3A6E52EA31B13001EF4F6 /* ThumbnailGenerator.swift */,
 				5405CF5B2EA1191A00613856 /* PreviewGenerator.swift */,
 			);
 			path = src;
@@ -138,6 +171,7 @@
 				541051562E37AFC10083670B /* src */,
 				54442C6F2E378BDD008A870E /* QLApps */,
 				54442C782E378BE0008A870E /* QLPreview */,
+				545820202EB29B3D0043A0B3 /* QLThumbnail */,
 				54442C212E378BAF008A870E /* Frameworks */,
 				54442BF52E378B71008A870E /* Products */,
 			);
@@ -148,6 +182,7 @@
 			children = (
 				54442BF42E378B71008A870E /* QLApps.app */,
 				54442C202E378BAF008A870E /* QLPreview.appex */,
+				54581FCF2EB29A0B0043A0B3 /* QLThumbnail.appex */,
 			);
 			name = Products;
 			sourceTree = "<group>";
@@ -166,6 +201,7 @@
 				54D3A6FC2EA465A9001EF4F6 /* CoreServices.framework */,
 				54D3A6FA2EA46588001EF4F6 /* CoreGraphics.framework */,
 				54442C222E378BAF008A870E /* Quartz.framework */,
+				54581FD02EB29A0B0043A0B3 /* QuickLookThumbnailing.framework */,
 			);
 			name = Frameworks;
 			sourceTree = "<group>";
@@ -192,6 +228,16 @@
 			path = QLPreview;
 			sourceTree = "<group>";
 		};
+		545820202EB29B3D0043A0B3 /* QLThumbnail */ = {
+			isa = PBXGroup;
+			children = (
+				5458201D2EB29B3D0043A0B3 /* Info.plist */,
+				5458201E2EB29B3D0043A0B3 /* QLThumbnail.entitlements */,
+				5458201F2EB29B3D0043A0B3 /* ThumbnailProvider.swift */,
+			);
+			path = QLThumbnail;
+			sourceTree = "<group>";
+		};
 		54D3A6F42EA46069001EF4F6 /* resources */ = {
 			isa = PBXGroup;
 			children = (
@@ -226,6 +272,7 @@
 			);
 			dependencies = (
 				54442C2F2E378BAF008A870E /* PBXTargetDependency */,
+				54581FD92EB29A0B0043A0B3 /* PBXTargetDependency */,
 			);
 			name = QLApps;
 			packageProductDependencies = (
@@ -253,6 +300,25 @@
 			productReference = 54442C202E378BAF008A870E /* QLPreview.appex */;
 			productType = "com.apple.product-type.app-extension";
 		};
+		54581FCE2EB29A0B0043A0B3 /* QLThumbnail */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 54581FDE2EB29A0B0043A0B3 /* Build configuration list for PBXNativeTarget "QLThumbnail" */;
+			buildPhases = (
+				54581FCB2EB29A0B0043A0B3 /* Sources */,
+				54581FCC2EB29A0B0043A0B3 /* Frameworks */,
+				54581FCD2EB29A0B0043A0B3 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = QLThumbnail;
+			packageProductDependencies = (
+			);
+			productName = QLThumbnail;
+			productReference = 54581FCF2EB29A0B0043A0B3 /* QLThumbnail.appex */;
+			productType = "com.apple.product-type.app-extension";
+		};
 /* End PBXNativeTarget section */
 
 /* Begin PBXProject section */
@@ -269,6 +335,9 @@
 					54442C1F2E378BAF008A870E = {
 						CreatedOnToolsVersion = 16.4;
 					};
+					54581FCE2EB29A0B0043A0B3 = {
+						CreatedOnToolsVersion = 16.4;
+					};
 				};
 			};
 			buildConfigurationList = 54442BEF2E378B71008A870E /* Build configuration list for PBXProject "QLApps" */;
@@ -287,6 +356,7 @@
 			targets = (
 				54442BF32E378B71008A870E /* QLApps */,
 				54442C1F2E378BAF008A870E /* QLPreview */,
+				54581FCE2EB29A0B0043A0B3 /* QLThumbnail */,
 			);
 		};
 /* End PBXProject section */
@@ -312,6 +382,14 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		54581FCD2EB29A0B0043A0B3 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				545820232EB29B4C0043A0B3 /* defaultIcon.png in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 /* End PBXResourcesBuildPhase section */
 
 /* Begin PBXSourcesBuildPhase section */
@@ -340,6 +418,20 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		54581FCB2EB29A0B0043A0B3 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				54581FFD2EB29AB70043A0B3 /* Plist.swift in Sources */,
+				54581FEF2EB29A570043A0B3 /* Shared.swift in Sources */,
+				54581FF02EB29A5E0043A0B3 /* AppIcon.swift in Sources */,
+				54581FF72EB29A820043A0B3 /* Zip.swift in Sources */,
+				545820032EB29B0A0043A0B3 /* RoundedIcon.swift in Sources */,
+				545820222EB29B3D0043A0B3 /* ThumbnailProvider.swift in Sources */,
+				54581FF12EB29A620043A0B3 /* AppIcon+Car.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 /* End PBXSourcesBuildPhase section */
 
 /* Begin PBXTargetDependency section */
@@ -348,6 +440,11 @@
 			target = 54442C1F2E378BAF008A870E /* QLPreview */;
 			targetProxy = 54442C2E2E378BAF008A870E /* PBXContainerItemProxy */;
 		};
+		54581FD92EB29A0B0043A0B3 /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			target = 54581FCE2EB29A0B0043A0B3 /* QLThumbnail */;
+			targetProxy = 54581FD82EB29A0B0043A0B3 /* PBXContainerItemProxy */;
+		};
 /* End PBXTargetDependency section */
 
 /* Begin PBXVariantGroup section */
@@ -404,7 +501,7 @@
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 773;
+				CURRENT_PROJECT_VERSION = 842;
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				DEVELOPMENT_TEAM = UY657LKNHJ;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
@@ -475,7 +572,7 @@
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 773;
+				CURRENT_PROJECT_VERSION = 842;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				DEVELOPMENT_TEAM = UY657LKNHJ;
 				ENABLE_NS_ASSERTIONS = NO;
@@ -617,6 +714,62 @@
 			};
 			name = Release;
 		};
+		54581FDB2EB29A0B0043A0B3 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_ENTITLEMENTS = QLThumbnail/QLThumbnail.entitlements;
+				CODE_SIGN_STYLE = Manual;
+				DEVELOPMENT_TEAM = "";
+				"DEVELOPMENT_TEAM[sdk=macosx*]" = UY657LKNHJ;
+				ENABLE_HARDENED_RUNTIME = YES;
+				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_FILE = QLThumbnail/Info.plist;
+				INFOPLIST_KEY_CFBundleDisplayName = QLThumbnail;
+				INFOPLIST_KEY_NSHumanReadableCopyright = "";
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+					"@executable_path/../../../../Frameworks",
+				);
+				MACOSX_DEPLOYMENT_TARGET = 15.5;
+				PRODUCT_BUNDLE_IDENTIFIER = de.relikd.QLApps.QLThumbnail;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SKIP_INSTALL = YES;
+				SWIFT_EMIT_LOC_STRINGS = YES;
+				SWIFT_INCLUDE_PATHS = "$(SRCROOT)/PrivateFrameworks/CoreUI.framework $(inherited)";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Debug;
+		};
+		54581FDC2EB29A0B0043A0B3 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_ENTITLEMENTS = QLThumbnail/QLThumbnail.entitlements;
+				CODE_SIGN_STYLE = Manual;
+				DEVELOPMENT_TEAM = "";
+				"DEVELOPMENT_TEAM[sdk=macosx*]" = UY657LKNHJ;
+				ENABLE_HARDENED_RUNTIME = YES;
+				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_FILE = QLThumbnail/Info.plist;
+				INFOPLIST_KEY_CFBundleDisplayName = QLThumbnail;
+				INFOPLIST_KEY_NSHumanReadableCopyright = "";
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+					"@executable_path/../../../../Frameworks",
+				);
+				MACOSX_DEPLOYMENT_TARGET = 15.5;
+				PRODUCT_BUNDLE_IDENTIFIER = de.relikd.QLApps.QLThumbnail;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SKIP_INSTALL = YES;
+				SWIFT_EMIT_LOC_STRINGS = YES;
+				SWIFT_INCLUDE_PATHS = "$(SRCROOT)/PrivateFrameworks/CoreUI.framework $(inherited)";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Release;
+		};
 /* End XCBuildConfiguration section */
 
 /* Begin XCConfigurationList section */
@@ -647,6 +800,15 @@
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
 		};
+		54581FDE2EB29A0B0043A0B3 /* Build configuration list for PBXNativeTarget "QLThumbnail" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				54581FDB2EB29A0B0043A0B3 /* Debug */,
+				54581FDC2EB29A0B0043A0B3 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
 /* End XCConfigurationList section */
 	};
 	rootObject = 54442BEC2E378B71008A870E /* Project object */;

QLPreview/PreviewViewController.swift

@@ -4,7 +4,7 @@ import WebKit // WebView
 import os // OSLog
 
 // show Console logs with subsystem:de.relikd.QLApps
-private let log = OSLog(subsystem: Bundle.main.bundleIdentifier!, category: "main")
+private let log = OSLog(subsystem: Bundle.main.bundleIdentifier!, category: "preview-plugin")
 
 class PreviewViewController: NSViewController, QLPreviewingController {
 	

QLThumbnail/Info.plist

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>NSExtension</key>
+	<dict>
+		<key>NSExtensionAttributes</key>
+		<dict>
+			<key>QLSupportedContentTypes</key>
+			<array>
+				<string>com.apple.itunes.ipa</string>
+				<string>com.apple.application-and-system-extension</string>
+				<string>com.apple.xcode.archive</string>
+			</array>
+			<key>QLThumbnailMinimumDimension</key>
+			<integer>16</integer>
+		</dict>
+		<key>NSExtensionPointIdentifier</key>
+		<string>com.apple.quicklook.thumbnail</string>
+		<key>NSExtensionPrincipalClass</key>
+		<string>$(PRODUCT_MODULE_NAME).ThumbnailProvider</string>
+	</dict>
+</dict>
+</plist>

QLThumbnail/QLThumbnail.entitlements

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!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/>
+</dict>
+</plist>

QLThumbnail/ThumbnailProvider.swift

@@ -0,0 +1,43 @@
+import QuickLookThumbnailing
+import os // OSLog
+
+// show Console logs with subsystem:de.relikd.QLApps
+private let log = OSLog(subsystem: Bundle.main.bundleIdentifier!, category: "thumbnail-plugin")
+
+extension QLThumbnailReply {
+	/// call private method `setIconFlavor:`
+	/// see https://medium.com/swlh/calling-ios-and-macos-hidden-api-in-style-1a924f244ad1
+	fileprivate func setFlavor(_ flavor: Int) {
+		typealias setIconFlavorMethod = @convention(c) (NSObject, Selector, NSInteger) -> Bool
+		let selector = NSSelectorFromString("setIconFlavor:")
+		let imp = self.method(for: selector)
+		let method = unsafeBitCast(imp, to: setIconFlavorMethod.self)
+		_ = method(self, selector, flavor)
+	}
+}
+
+class ThumbnailProvider: QLThumbnailProvider {
+	
+	// TODO: sadly, this does not seem to work for .xarchive and .appex
+	// Probably overwritten by Apple somehow
+	
+	override func provideThumbnail(for request: QLFileThumbnailRequest, _ handler: @escaping (QLThumbnailReply?, Error?) -> Void) {
+		let meta = QuickLookInfo(request.fileURL)
+		let icon = AppIcon(meta)
+		let plistApp = meta.readPlistApp()
+		let img = icon.extractImage(from: plistApp).withRoundCorners()
+		
+		// First way: Draw the thumbnail into the current context, set up with UIKit's coordinate system.
+		let reply = QLThumbnailReply(contextSize: request.maximumSize, currentContextDrawing: { () -> Bool in
+			img.draw(in: CGRect(origin: .zero, size: request.maximumSize))
+			return true
+		})
+		// defer in case `setFlavor` fails
+		defer {
+			handler(reply, nil)
+		}
+		// 0: Plain transparent, 1: Shadow, 2: Book, 3: Movie, 4: Address, 5: Image,
+		// 6: Gloss, 7: Slide, 8: Square, 9: Border, 11: Calendar, 12: Pattern
+		reply.setFlavor(meta.type == .Archive ? 12 : 0) // .archive looks like "in development"
+	}
+}

src/ThumbnailGenerator.swift

@@ -1,162 +0,0 @@
-import Foundation
-
-////#import "Shared.h"
-//#import "AppIcon.h"
-//
-//// makro to stop further processing
-//#define ALLOW_EXIT if (QLThumbnailRequestIsCancelled(thumbnail)) { return noErr; }
-//
-////Layout constants
-//#define BADGE_MARGIN        10.0
-//#define MIN_BADGE_WIDTH     40.0
-//#define BADGE_HEIGHT        75.0
-//#define BADGE_MARGIN_X      60.0
-//#define BADGE_MARGIN_Y      80.0
-//
-////Drawing constants
-//#define BADGE_BG_COLOR          [NSColor lightGrayColor]
-//#define BADGE_VALID_COLOR       [NSColor colorWithCalibratedRed:(0/255.0) green:(98/255.0) blue:(25/255.0) alpha:1]
-//#define BADGE_EXPIRING_COLOR    [NSColor colorWithCalibratedRed:(146/255.0) green:(95/255.0) blue:(28/255.0) alpha:1]
-//#define BADGE_EXPIRED_COLOR     [NSColor colorWithCalibratedRed:(141/255.0) green:(0/255.0) blue:(7/255.0) alpha:1]
-//#define BADGE_FONT              [NSFont boldSystemFontOfSize:64]
-//
-//
-//OSStatus GenerateThumbnailForURL(void *thisInterface, QLThumbnailRequestRef thumbnail, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options, CGSize maxSize);
-//void CancelThumbnailGeneration(void *thisInterface, QLThumbnailRequestRef thumbnail);
-//
-///* -----------------------------------------------------------------------------
-// Generate a thumbnail for file
-// 
-// This function's job is to create thumbnail for designated file as fast as possible
-// ----------------------------------------------------------------------------- */
-//
-//// MARK: .ipa .xcarchive
-//
-//OSStatus renderAppIcon(QuickLookInfo meta, QLThumbnailRequestRef thumbnail) {
-//	AppIcon *icon = [AppIcon load:meta];
-//	if (!icon.canExtractImage) {
-//		return noErr;
-//	}
-//	
-//	// set magic flag to draw icon without additional markers
-//	static const NSString *IconFlavor;
-//	if (@available(macOS 10.15, *)) {
-//		IconFlavor = @"icon";
-//	} else {
-//		IconFlavor = @"IconFlavor";
-//	}
-//	NSDictionary *propertiesDict = nil;
-//	if (meta.type == FileTypeArchive) {
-//		// 0: Plain transparent, 1: Shadow, 2: Book, 3: Movie, 4: Address, 5: Image,
-//		// 6: Gloss, 7: Slide, 8: Square, 9: Border, 11: Calendar, 12: Pattern
-//		propertiesDict = @{IconFlavor : @(12)}; // looks like "in development"
-//	} else {
-//		propertiesDict = @{IconFlavor : @(0)}; // no border, no anything
-//	}
-//	
-//	NSImage *appIcon = [[icon extractImage:nil] withRoundCorners];
-//	ALLOW_EXIT
-//	
-//	// image-only icons can be drawn efficiently by calling `SetImage` directly.
-//	QLThumbnailRequestSetImageWithData(thumbnail, (__bridge CFDataRef)[appIcon TIFFRepresentation], (__bridge CFDictionaryRef)propertiesDict);
-//	return noErr;
-//}
-//
-//
-//// MARK: .provisioning
-//
-//OSStatus renderProvision(QuickLookInfo meta, QLThumbnailRequestRef thumbnail, BOOL iconMode) {
-//	NSDictionary *propertyList = readPlistProvision(meta);
-//	ALLOW_EXIT
-//	
-//	NSUInteger devicesCount = arrayOrNil(propertyList[@"ProvisionedDevices"]).count;
-//	NSDate *expirationDate = dateOrNil(propertyList[@"ExpirationDate"]);
-//	
-//	NSImage *appIcon = nil;
-//	if (iconMode) {
-//		NSURL *iconURL = [[NSBundle bundleWithIdentifier:kPluginBundleId] URLForResource:@"blankIcon" withExtension:@"png"];
-//		appIcon = [[NSImage alloc] initWithContentsOfURL:iconURL];
-//	} else {
-//		appIcon = [[NSWorkspace sharedWorkspace] iconForFileType:meta.UTI];
-//		[appIcon setSize:NSMakeSize(512, 512)];
-//	}
-//	ALLOW_EXIT
-//	
-//	NSRect renderRect = NSMakeRect(0.0, 0.0, appIcon.size.width, appIcon.size.height);
-//	
-//	// Font attributes
-//	NSColor *outlineColor;
-//	switch (expirationStatus(expirationDate)) {
-//		case ExpirationStatusExpired:  outlineColor = BADGE_EXPIRED_COLOR; break;
-//		case ExpirationStatusExpiring: outlineColor = BADGE_EXPIRING_COLOR; break;
-//		case ExpirationStatusValid:    outlineColor = BADGE_VALID_COLOR; break;
-//	}
-//	
-//	NSMutableParagraphStyle *paragraphStyle = [[NSParagraphStyle defaultParagraphStyle] mutableCopy];
-//	paragraphStyle.lineBreakMode = NSLineBreakByTruncatingTail;
-//	paragraphStyle.alignment = NSTextAlignmentCenter;
-//	
-//	NSDictionary *fontAttrs = @{
-//		NSFontAttributeName : BADGE_FONT,
-//		NSForegroundColorAttributeName : outlineColor,
-//		NSParagraphStyleAttributeName: paragraphStyle
-//	};
-//	
-//	// Badge size & placement
-//	int badgeX = renderRect.origin.x + BADGE_MARGIN_X;
-//	int badgeY = renderRect.origin.y + renderRect.size.height - BADGE_HEIGHT - BADGE_MARGIN_Y;
-//	if (!iconMode) {
-//		badgeX += 75;
-//		badgeY -= 10;
-//	}
-//	int badgeNumX = badgeX + BADGE_MARGIN;
-//	NSPoint badgeTextPoint = NSMakePoint(badgeNumX, badgeY);
-//	
-//	NSString *badge = [NSString stringWithFormat:@"%lu",(unsigned long)devicesCount];
-//	NSSize badgeNumSize = [badge sizeWithAttributes:fontAttrs];
-//	int badgeWidth = badgeNumSize.width + BADGE_MARGIN * 2;
-//	NSRect badgeOutlineRect = NSMakeRect(badgeX, badgeY, MAX(badgeWidth, MIN_BADGE_WIDTH), BADGE_HEIGHT);
-//	
-//	// Do as much work as possible before the `CreateContext`. We can try to quit early before that!
-//	CGContextRef _context = QLThumbnailRequestCreateContext(thumbnail, renderRect.size, false, NULL);
-//	if (_context) {
-//		NSGraphicsContext *_graphicsContext = [NSGraphicsContext graphicsContextWithCGContext:(void *)_context flipped:NO];
-//		[NSGraphicsContext setCurrentContext:_graphicsContext];
-//		[appIcon drawInRect:renderRect];
-//		
-//		NSBezierPath *badgePath = [NSBezierPath bezierPathWithRoundedRect:badgeOutlineRect xRadius:10 yRadius:10];
-//		[badgePath setLineWidth:8.0];
-//		[BADGE_BG_COLOR set];
-//		[badgePath fill];
-//		[outlineColor set];
-//		[badgePath stroke];
-//		
-//		[badge drawAtPoint:badgeTextPoint withAttributes:fontAttrs];
-//		
-//		QLThumbnailRequestFlushContext(thumbnail, _context);
-//		CFRelease(_context);
-//	}
-//	return noErr;
-//}
-//
-//
-//// MARK: Main Entry
-//
-//OSStatus GenerateThumbnailForURL(void *thisInterface, QLThumbnailRequestRef thumbnail, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options, CGSize maxSize) {
-//	@autoreleasepool {
-//		QuickLookInfo meta = initQLInfo(contentTypeUTI, url);
-//		
-//		if (meta.type == FileTypeProvision) {
-//			NSDictionary *optionsDict = (__bridge NSDictionary *)options;
-//			BOOL iconMode = ([optionsDict objectForKey:(NSString *)kQLThumbnailOptionIconModeKey]) ? YES : NO;
-//			return renderProvision(meta, thumbnail, iconMode);
-//		} else {
-//			return renderAppIcon(meta, thumbnail);
-//		}
-//	}
-//	return noErr;
-//}
-//
-//void CancelThumbnailGeneration(void *thisInterface, QLThumbnailRequestRef thumbnail) {
-//	// Implement only if supported
-//}