/usr/include/GNUstep/EOControl/EOObserver.h is in libsope-dev 2.2.17-1build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 | /*
Copyright (C) 2000-2005 SKYRIX Software AG
This file is part of SOPE.
SOPE 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, or (at your option) any
later version.
SOPE 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 SOPE; see the file COPYING. If not, write to the
Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
*/
#ifndef __EOControl_EOObserver_H__
#define __EOControl_EOObserver_H__
#import <Foundation/NSObject.h>
@class NSArray;
@protocol EOObserving < NSObject >
- (void)objectWillChange:(id)_object;
@end
@interface NSObject(EOObserver)
- (void)willChange;
@end
/*
Note that -addObserver/-removeObserver methods do *not* nest !
Suppression methods do nest.
*/
@interface EOObserverCenter : NSObject
+ (void)notifyObserversObjectWillChange:(id)_object;
+ (void)addObserver:(id<EOObserving>)_observer forObject:(id)_object;
+ (void)removeObserver:(id<EOObserving>)_observer forObject:(id)_object;
+ (void)addOmniscientObserver:(id<EOObserving>)_observer;
+ (void)removeOmniscientObserver:(id<EOObserving>)_observer;
+ (NSArray *)observersForObject:(id)_object;
+ (id)observerForObject:(id)_object ofClass:(Class)_targetClass;
/* suppressing notifications */
+ (void)suppressObserverNotification;
+ (void)enableObserverNotification;
+ (unsigned)observerNotificationSuppressCount;
@end
/* asynchronous observing */
typedef enum {
EOObserverPriorityImmediate,
EOObserverPriorityFirst,
EOObserverPrioritySecond,
EOObserverPriorityThird,
EOObserverPriorityFourth,
EOObserverPriorityFifth,
EOObserverPrioritySixth,
EOObserverPriorityLater
} EOObserverPriority;
@class EODelayedObserver;
@interface EODelayedObserverQueue : NSObject
{
@protected
EODelayedObserver *queues[8];
NSArray *runLoopModes;
BOOL hasObservers;
}
+ (EODelayedObserverQueue *)defaultObserverQueue;
/* accessors */
- (void)setRunLoopModes:(NSArray *)_modes;
- (NSArray *)runLoopModes;
/* managing queue */
- (void)enqueueObserver:(EODelayedObserver *)_observer;
- (void)dequeueObserver:(EODelayedObserver *)_observer;
/* notification */
- (void)notifyObserversUpToPriority:(EOObserverPriority)_lastPriority;
@end
@interface EODelayedObserver : NSObject < EOObserving >
{
@public
EODelayedObserver *next; /* for access by queue */
}
/* accessors */
- (EOObserverPriority)priority;
- (EODelayedObserverQueue *)observerQueue;
/* notifications */
- (void)subjectChanged;
- (void)discardPendingNotification;
@end
@interface EOObserverProxy : EODelayedObserver
{
@protected
EOObserverPriority priority;
id target;
SEL action;
}
- (id)initWithTarget:(id)_target action:(SEL)_action
priority:(EOObserverPriority)_priority;
@end
#endif /* __EOControl_EOObserver_H__ */
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