181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch/* 281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * Copyright (C) 2011 Apple Inc. All rights reserved. 381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * 481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * Redistribution and use in source and binary forms, with or without 581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * modification, are permitted provided that the following conditions 681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * are met: 781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * 1. Redistributions of source code must retain the above copyright 881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * notice, this list of conditions and the following disclaimer. 981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * 2. Redistributions in binary form must reproduce the above copyright 1081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * notice, this list of conditions and the following disclaimer in the 1181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * documentation and/or other materials provided with the distribution. 1281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * 1381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 1481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 1581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 1681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 1781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 1881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 1981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 2081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 2181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 2281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 2381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch * THE POSSIBILITY OF SUCH DAMAGE. 2481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch */ 2581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 2681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch#import "config.h" 2781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch#import "FullKeyboardAccessWatcher.h" 2881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 2981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen MurdochNSString * const KeyboardUIModeDidChangeNotification = @"com.apple.KeyboardUIModeDidChange"; 3081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochconst CFStringRef AppleKeyboardUIMode = CFSTR("AppleKeyboardUIMode"); 3181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochconst CFStringRef UniversalAccessDomain = CFSTR("com.apple.universalaccess"); 3281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 3381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch@implementation FullKeyboardAccessWatcher 3481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 3581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch- (void)retrieveKeyboardUIModeFromPreferences:(NSNotification *)notification 3681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch{ 3781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch CFPreferencesAppSynchronize(UniversalAccessDomain); 3881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 3981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch Boolean keyExistsAndHasValidFormat; 4081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch int mode = CFPreferencesGetAppIntegerValue(AppleKeyboardUIMode, UniversalAccessDomain, &keyExistsAndHasValidFormat); 4181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (keyExistsAndHasValidFormat) { 4281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch // The keyboard access mode is reported by two bits: 4381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch // Bit 0 is set if feature is on 4481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch // Bit 1 is set if full keyboard access works for any control, not just text boxes and lists. 4581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch fullKeyboardAccessEnabled = (mode & 0x2); 4681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch } 4781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch} 4881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 4981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch- (id)init 5081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch{ 5181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch self = [super init]; 5281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (!self) 5381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch return nil; 5481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 5581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch [self retrieveKeyboardUIModeFromPreferences:nil]; 5681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 5781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch [[NSDistributedNotificationCenter defaultCenter] 5881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch addObserver:self selector:@selector(retrieveKeyboardUIModeFromPreferences:) 5981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch name:KeyboardUIModeDidChangeNotification object:nil]; 6081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 6181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch return self; 6281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch} 6381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 6481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch+ (BOOL)fullKeyboardAccessEnabled 6581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch{ 6681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch static FullKeyboardAccessWatcher *watcher = [[FullKeyboardAccessWatcher alloc] init]; 6781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch return watcher->fullKeyboardAccessEnabled; 6881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch} 6981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 7081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch@end 71