| author | snej@snej-mbp.mtv.corp.google.com |
| Tue Apr 07 11:13:25 2009 -0700 (2009-04-07) | |
| changeset 23 | a910102a1c9d |
| parent 0 | d84d25d6cdbb |
| permissions | -rw-r--r-- |
| jens@0 | 1 |
// |
| jens@0 | 2 |
// KVUtils.h |
| jens@0 | 3 |
// MYUtilities |
| jens@0 | 4 |
// |
| jens@0 | 5 |
// Created by Jens Alfke on 2/25/08. |
| jens@0 | 6 |
// Copyright 2008 Jens Alfke. All rights reserved. |
| jens@0 | 7 |
// |
| jens@0 | 8 |
|
| jens@0 | 9 |
#import <Cocoa/Cocoa.h> |
| jens@0 | 10 |
|
| jens@0 | 11 |
|
| jens@0 | 12 |
enum {
|
| jens@0 | 13 |
MYKeyValueObservingOptionOnce = 1<<31, |
| jens@0 | 14 |
MYKeyValueObservingOptionDelayed = 1<<30 |
| jens@0 | 15 |
}; |
| jens@0 | 16 |
|
| jens@0 | 17 |
|
| jens@0 | 18 |
|
| jens@0 | 19 |
@interface Observance : NSObject |
| jens@0 | 20 |
{
|
| jens@0 | 21 |
id _target; |
| jens@0 | 22 |
id _observed; |
| jens@0 | 23 |
NSString *_keyPath; |
| jens@0 | 24 |
NSKeyValueObservingOptions _options; |
| jens@0 | 25 |
SEL _action; |
| jens@0 | 26 |
} |
| jens@0 | 27 |
|
| jens@0 | 28 |
- (id) initWithTarget: (id)target |
| jens@0 | 29 |
action: (SEL)action |
| jens@0 | 30 |
observed: (id)observed |
| jens@0 | 31 |
keyPath: (NSString*)keyPath |
| jens@0 | 32 |
options: (NSKeyValueObservingOptions)options; |
| jens@0 | 33 |
|
| jens@0 | 34 |
- (void) stopObserving; |
| jens@0 | 35 |
|
| jens@0 | 36 |
@property (readonly) id observed; |
| jens@0 | 37 |
@property (readonly) NSString* keyPath; |
| jens@0 | 38 |
|
| jens@0 | 39 |
@end |
| jens@0 | 40 |
|
| jens@0 | 41 |
|
| jens@0 | 42 |
|
| jens@0 | 43 |
@interface Observer : NSObject |
| jens@0 | 44 |
{
|
| jens@0 | 45 |
id _target; |
| jens@0 | 46 |
NSMutableArray *_observances; |
| jens@0 | 47 |
} |
| jens@0 | 48 |
|
| jens@0 | 49 |
- (id) initWithTarget: (id)target; |
| jens@0 | 50 |
|
| jens@0 | 51 |
@property (readonly) id target; |
| jens@0 | 52 |
|
| jens@0 | 53 |
- (void) observe: (id)observed |
| jens@0 | 54 |
keyPath: (NSString*)keyPath |
| jens@0 | 55 |
options: (NSKeyValueObservingOptions)options |
| jens@0 | 56 |
action: (SEL)action; |
| jens@0 | 57 |
|
| jens@0 | 58 |
- (void) observe: (id)observed |
| jens@0 | 59 |
keyPath: (NSString*)keyPath |
| jens@0 | 60 |
action: (SEL)action; |
| jens@0 | 61 |
|
| jens@3 | 62 |
/** observed or keyPath may be nil, meaning wildcard */ |
| jens@0 | 63 |
- (void) stopObserving: (id)observedOrNil keyPath: (NSString*)keyPathOrNil; |
| jens@3 | 64 |
- (void) stopObserving: (id)observed; |
| jens@0 | 65 |
- (void) stopObserving; |
| jens@0 | 66 |
|
| jens@0 | 67 |
@end |