Add NSUserInterfaceItemSearching code.

Headers/AppKit/NSUserInterfaceItemSearching.h

@@ -27,13 +27,39 @@
 
 #import <Foundation/NSObject.h>
 
-#if OS_API_VERSION(MAC_OS_X_VERSION_10_0, GS_API_LATEST)
+#if OS_API_VERSION(MAC_OS_X_VERSION_10_6, GS_API_LATEST)
 
 #if	defined(__cplusplus)
 extern "C" {
 #endif
+  
+@protocol NSUserInterfaceItemSearching <NSObject>
 
-@protocol NSUserInterfaceItemSearching
+// @required
+
+- (void)searchForItemsWithSearchString:(NSString *)searchString resultLimit:(NSInteger)resultLimit matchedItemHandler:(void (^)(NSArray *items))handleMatchedItems;
+
+- (NSArray<NSString *> *)localizedTitlesForItem:(id)item;
+
+// @optional
+
+- (void)performActionForItem:(id)item;
+
+- (void)showAllHelpTopicsForSearchString:(NSString *)searchString;
+
+@end
+
+
+@interface NSApplication (NSUserInterfaceItemSearching)
+
+- (void) registerUserInterfaceItemSearchHandler: (id<NSUserInterfaceItemSearching>)handler;
+
+- (void) unregisterUserInterfaceItemSearchHandler: (id<NSUserInterfaceItemSearching>)handler;
+
+- (BOOL) searchString:(NSString *)searchString
+         inUserInterfaceItemString:(NSString *)stringToSearch
+         searchRange:(NSRange)searchRange
+         foundRange:(NSRange *)foundRange;
 
 @end
 

Source/GNUmakefile

@@ -262,6 +262,7 @@ NSTreeController.m \
 NSTreeNode.m \
 NSUserDefaultsController.m \
 NSUserInterfaceCompression.m \
+NSUserInterfaceItemSearching.m \
 NSView.m \
 NSViewController.m \
 NSVisualEffectView.m \

Source/NSUserInterfaceItemSearching.m

@@ -0,0 +1,50 @@
+/* Implementation of class NSUserInterfaceItemSearching
+   Copyright (C) 2019 Free Software Foundation, Inc.
+   
+   By: Gregory John Casamento
+   Date: Tue Apr  7 08:11:46 EDT 2020
+
+   This file is part of the GNUstep Library.
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+   
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+   
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free
+   Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110 USA.
+*/
+
+#import <Foundation/NSObject.h>
+#import <Foundation/NSCoder.h>
+
+#import "AppKit/NSApplication.h"
+#import "AppKit/NSUserInterfaceItemSearching.h"
+
+@implementation NSApplication (NSUserInterfaceItemSearching)
+
+- (void) registerUserInterfaceItemSearchHandler: (id<NSUserInterfaceItemSearching>)handler
+{
+}
+
+- (void) unregisterUserInterfaceItemSearchHandler: (id<NSUserInterfaceItemSearching>)handler
+{
+}
+
+- (BOOL) searchString:(NSString *)searchString
+         inUserInterfaceItemString:(NSString *)stringToSearch
+         searchRange:(NSRange)searchRange
+         foundRange:(NSRange *)foundRange
+{
+  return NO;
+}
+
+@end
+