macOS/iOS: Use more modern APIs for determining the save directory.

--HG--
branch : minor

src/common/ios.mm

@@ -287,22 +287,26 @@ std::string getLoveInResources(bool &fused)
 	return path;
 }
 
-std::string getAppdataDirectory()
+static std::string getUserDirectory(NSSearchPathDirectory dir)
 {
-	NSSearchPathDirectory searchdir = NSApplicationSupportDirectory;
 	std::string path;
 
 	@autoreleasepool
 	{
-		NSArray *dirs = NSSearchPathForDirectoriesInDomains(searchdir, NSUserDomainMask, YES);
+		NSArray<NSURL *> *dirs = [[NSFileManager defaultManager] URLsForDirectory:dir inDomains:NSUserDomainMask];
 
 		if (dirs.count > 0)
-			path = [dirs[0] UTF8String];
+			path = [dirs[0].path UTF8String];
 	}
 
 	return path;
 }
 
+std::string getAppdataDirectory()
+{
+	return getUserDirectory(NSApplicationSupportDirectory);
+}
+
 std::string getHomeDirectory()
 {
 	std::string path;

src/common/macosx.h

@@ -32,6 +32,8 @@ namespace love
 namespace macosx
 {
 
+std::string getAppdataDirectory();
+
 /**
  * Returns the filepath of the first detected love file in the Resources folder
  * in the main bundle (love.app.)

src/common/macosx.mm

@@ -36,6 +36,26 @@ namespace love
 namespace macosx
 {
 
+static std::string getUserDirectory(NSSearchPathDirectory dir)
+{
+	std::string path;
+
+	@autoreleasepool
+	{
+		NSArray<NSURL *> *dirs = [[NSFileManager defaultManager] URLsForDirectory:dir inDomains:NSUserDomainMask];
+
+		if (dirs.count > 0)
+			path = [dirs[0].path UTF8String];
+	}
+
+	return path;
+}
+
+std::string getAppdataDirectory()
+{
+	return getUserDirectory(NSApplicationSupportDirectory);
+}
+
 std::string getLoveInResources()
 {
 	std::string path;