1+ #import " SSYAlertSounder.h"
2+ #import < AudioToolbox/AudioServices.h>
3+ #import " NSBundle+MainApp.h"
4+ #import " SSY_ARC_OR_NO_ARC.h"
5+
6+
7+ static SSYAlertSounder* static_sharedSounder = nil ;
8+
9+ @interface SSYAlertSounder ()
10+
11+ @end
12+
13+ @implementation SSYAlertSounder
14+
15+ - (id )init {
16+ self = [super init ] ;
17+ if (self) {
18+ m_soundIds = [[NSMutableDictionary alloc ] init ] ;
19+ }
20+
21+ return self ;
22+ }
23+
24+ - (void )dealloc {
25+ for (NSNumber * soundId in [m_soundIds allValues ]) {
26+ AudioServicesDisposeSystemSoundID ((unsigned int )[soundId longValue ]) ;
27+ }
28+
29+ #if NO_ARC
30+ [m_soundIds release ] ;
31+
32+ [super dealloc ] ;
33+ #endif
34+ }
35+
36+ - (NSMutableDictionary *)soundIds {
37+ return m_soundIds ;
38+ }
39+
40+
41+ + (SSYAlertSounder*)sharedSounder {
42+ @synchronized (self) {
43+ if (!static_sharedSounder) {
44+ static_sharedSounder = [[self alloc ] init ] ;
45+ }
46+ }
47+
48+ // No autorelease. This sticks around forever.
49+ return static_sharedSounder ;
50+ }
51+
52+ - (SystemSoundID)soundIdForPath : (NSString *)path
53+ rememberAs : (NSString *)name {
54+ SystemSoundID soundId = 0 ;
55+
56+ if (path) {
57+ CFURLRef url = (__bridge CFURLRef )[NSURL fileURLWithPath: path] ;
58+ if (url) {
59+ OSStatus err ;
60+ err = AudioServicesCreateSystemSoundID (url, &soundId) ;
61+
62+ if (err) {
63+ // This will happen if file was not found.
64+ soundId = 0 ;
65+ }
66+ else {
67+ [[self soundIds ] setObject: [NSNumber numberWithLong: soundId]
68+ forKey: name] ;
69+ }
70+ }
71+ }
72+
73+ return soundId ;
74+ }
75+
76+ - (NSArray *)availableSoundsSorted {
77+ NSString * const type = @" aiff"
78+ NSMutableArray * paths = [[NSMutableArray alloc ] init ] ;
79+ NSString * path ;
80+ NSArray * morePaths ;
81+
82+ morePaths = [[NSBundle mainAppBundle ] pathsForResourcesOfType: type
83+ inDirectory: nil ] ;
84+ [paths addObjectsFromArray: morePaths] ;
85+
86+ path = [NSHomeDirectory () stringByAppendingPathComponent: @" Library/Sounds"
87+ morePaths = [[NSFileManager defaultManager ] contentsOfDirectoryAtPath: path
88+ error: NULL ] ;
89+ [paths addObjectsFromArray: morePaths] ;
90+
91+ path = @" /System/Library/Sounds"
92+ morePaths = [[NSFileManager defaultManager ] contentsOfDirectoryAtPath: path
93+ error: NULL ] ;
94+ [paths addObjectsFromArray: morePaths] ;
95+
96+ NSMutableArray * names = [[NSMutableArray alloc ] init ] ;
97+ for (NSString * path in paths) {
98+ NSString * name = [[path lastPathComponent ] stringByDeletingPathExtension ] ;
99+ if ([[path pathExtension ] isEqualToString: type]) {
100+ [names addObject: name] ;
101+ }
102+ }
103+
104+ [names sortUsingComparator: ^NSComparisonResult (NSString * s1, NSString * s2) {
105+ return [s1 localizedCaseInsensitiveCompare: s2] ;
106+ }] ;
107+
108+ NSArray * answer = [names copy ] ;
109+
110+ #if NO_ARC
111+ [paths release ] ;
112+ [names release ] ;
113+ [answer autorelease ] ;
114+ #endif
115+
116+ return answer ;
117+ }
118+
119+
120+ - (void )playAlertSoundNamed : (NSString *)name {
121+ if (!name) {
122+ return ;
123+ }
124+
125+ // First, see if we've got this sound cached
126+ SystemSoundID soundId = (SystemSoundID)[[[self soundIds ] objectForKey: name] longValue ] ;
127+ // Used -longValue because SystemSoundID is a UInt32
128+
129+ NSString * path ;
130+
131+ // If not found, look in the current application's bundle
132+ if (!soundId) {
133+ path = [[NSBundle mainAppBundle ] pathForResource: name
134+ ofType: @" aiff"
135+
136+ soundId = [self soundIdForPath: path
137+ rememberAs: name] ;
138+ // If not found, look in current user's library
139+ if (!soundId) {
140+ path = [NSHomeDirectory () stringByAppendingPathComponent: @" Library/Sounds"
141+ path = [path stringByAppendingPathComponent: [name stringByAppendingPathExtension: @" aiff"
142+
143+ soundId = [self soundIdForPath: path
144+ rememberAs: name] ;
145+
146+ // If not found, look in system's library
147+ if (!soundId) {
148+ path = @" /System/Library/Sounds"
149+ path = [path stringByAppendingPathComponent: [name stringByAppendingPathExtension: @" aiff"
150+
151+ soundId = [self soundIdForPath: path
152+ rememberAs: name] ;
153+ }
154+ }
155+ }
156+
157+ if (soundId) {
158+ AudioServicesPlayAlertSound (soundId) ;
159+ }
160+ else {
161+ NSBeep () ;
162+ }
163+ }
164+
165+ @end
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