Add user interface compression

Source/NSUserInterfaceCompression.m

@@ -0,0 +1,108 @@
+/* Implementation of class NSSharingServicePickerToolbarItem
+   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/NSUserInterfaceCompression.h"
+
+@implementation NSUserInterfaceCompressionOptions
+
+- (instancetype) initWithIdentifier: (NSString *)identifier
+{
+  return nil;
+}
+
+- (instancetype) initWithCompressionOptions: (NSSet *)opts
+{
+  return nil;
+}
+
+- (BOOL) containsOptions: (NSUserInterfaceCompressionOptions *)opts
+{
+  return NO;
+}
+
+- (BOOL) intersectsOptions: (NSUserInterfaceCompressionOptions *)opts
+{
+  return NO;
+}
+
+- (BOOL) isEmpty
+{
+  return NO;
+}
+
+- (NSUserInterfaceCompressionOptions *) optionsByAddingOptions: (NSUserInterfaceCompressionOptions *)opts
+{
+  return nil;
+}
+
+- (NSUserInterfaceCompressionOptions *) optionsByRemovingOptions: (NSUserInterfaceCompressionOptions *)opts
+{
+  return nil;
+}
+
++ (NSUserInterfaceCompressionOptions *) hideImagesOption
+{
+  return nil;
+}
+
++ (NSUserInterfaceCompressionOptions *) hideTextOption
+{
+  return nil;
+}
+
++ (NSUserInterfaceCompressionOptions *) reduceMetricsOption
+{
+  return nil;
+}
+
++ (NSUserInterfaceCompressionOptions *) breakEqualWidthsOption
+{
+  return nil;
+}
+
++ (NSUserInterfaceCompressionOptions *) standardOptions
+{
+  return nil;
+}
+
+- (void) encodeWithCoder: (NSCoder *)coder
+{
+}
+
+- (id) initWithCoder: (NSCoder *)coder
+{
+  self = [super init];
+  return self;
+}
+
+- (id) copyWithZone: (NSZone *)z
+{
+  return self;
+}
+
+@end
+