From 6c06b4311ff1e5781d53f777ac00e196038c75e2 Mon Sep 17 00:00:00 2001
From: Teddy Wing
Date: Thu, 25 Oct 2018 20:49:39 +0200
Subject: LicenseHandler(addLicense:): Use `NSWorkspace` to move to trash

The `trashItemAtURL:resultingItemURL:error:` method in `NSFileManager`
is only available starting from Mac OS X 10.8.

Replace this with a more compatible API call. At first I was thinking
about using `NSWorkspace`
`performFileOperation:source:destination:files:tag:`, since it works
starting from 10.0. However, I'd need to remove the `license.plist` path
component from the `NSURL` from `licensePath` in order to pass it to the
`source:` argument. I found `NSURL` `URLByDeletingLastPathComponent`,
which would make perfect sense, except it's only implemented starting in
10.6.

At that point, I figured why not use `NSWorkspace`
`recycleURLs:completionHandler:`, which exists starting in 10.6, and has
a simpler interface than
`performFileOperation:source:destination:files:tag:`.

Import AppKit in order to be able to use `NSWorkspace`.
---
 DomeKey/LicenseHandler.h |  1 +
 DomeKey/LicenseHandler.m | 15 +++++++--------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/DomeKey/LicenseHandler.h b/DomeKey/LicenseHandler.h
index 4d86923..90d308e 100644
--- a/DomeKey/LicenseHandler.h
+++ b/DomeKey/LicenseHandler.h
@@ -6,6 +6,7 @@
 //  Copyright © 2018 tw. All rights reserved.
 //
 
+#import <AppKit/AppKit.h>
 #import <Foundation/Foundation.h>
 
 #import "AquaticPrime.h"
diff --git a/DomeKey/LicenseHandler.m b/DomeKey/LicenseHandler.m
index 021c7d4..b18bd77 100644
--- a/DomeKey/LicenseHandler.m
+++ b/DomeKey/LicenseHandler.m
@@ -53,14 +53,13 @@ static NSString * const LICENSE_FILE_NAME = @"license.plist";
         printf("Thank you for registering DomeKey!\n");
     }
     else {
-        BOOL trashed = [[NSFileManager defaultManager]
-            trashItemAtURL:[self licensePath]
-            resultingItemURL:nil
-            error:&error];
-
-        if (!trashed) {
-            eprintf("%s\n", [[error localizedDescription] UTF8String]);
-        }
+        [[NSWorkspace sharedWorkspace]
+            recycleURLs:[NSArray arrayWithObject:[self licensePath]]
+            completionHandler:^(NSDictionary<NSURL *,NSURL *> *newURLs, NSError *error) {
+                if (error) {
+                    eprintf("%s\n", [[error localizedDescription] UTF8String]);
+                }
+            }];
     }
 
     // Copy license file into path
-- 
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