comply with secure restorable state (required when compiling on macOS…

… 14)

CreeveyController.m

@@ -985,6 +985,10 @@ - (void)showExifThumbnail:(BOOL)b shrinkWindow:(BOOL)shrink {
 
 
 #pragma mark new window stuff
+- (BOOL)applicationSupportsSecureRestorableState:(NSApplication *)app {
+	// opt in to secure behavior in macOS 12 and later. See the AppKit release notes for macOS 14.
+	return YES;
+}
 + (void)restoreWindowWithIdentifier:(NSString *)identifier
 							  state:(NSCoder *)state
 				  completionHandler:(void (^)(NSWindow *, NSError *))completionHandler

CreeveyMainWindowController.m

@@ -99,7 +99,9 @@ - (void)window:(NSWindow *)window willEncodeRestorableState:(NSCoder *)state
 
 - (void)window:(NSWindow *)window didDecodeRestorableState:(NSCoder *)state
 {
-	NSDictionary *data = [state decodeObjectForKey:@"creeveyWindowState"];
+	// as of macOS 12, apps must support secure restorable state (apparently malicious attacks could happen if there was bad data masquerading as your saved state)
+	// the fix is apparently to give a list of secure classes when you ask to decode the data. See the AppKit release notes for macOS 12.
+	NSDictionary *data = [state decodeObjectOfClasses:[NSSet setWithArray:@[[NSDictionary class],[NSString class],[NSNumber class]]] forKey:@"creeveyWindowState"];
 	if (![data isKindOfClass:[NSDictionary class]]) data = @{};
 	NSString *path = data[@"path"];
 	if (![path isKindOfClass:[NSString class]]) path = nil;