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Using simpler aproach for modelChange proadcasting by using the document as broadcaster

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michael starke
2016-08-30 12:59:27 +02:00
parent da295b9acd
commit 8b60e9ec84
13 changed files with 74 additions and 269 deletions
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41
MacPass/MPModelChangeObserving.h
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@@ -1,41 +0,0 @@
//
// MPModelChangeObserving.h
// MacPass
//
// Created by Michael Starke on 26/08/16.
// Copyright © 2016 HicknHack Software GmbH. All rights reserved.
//
#import <Foundation/Foundation.h>
NS_ASSUME_NONNULL_BEGIN
@protocol MPModelChangeObserving <NSObject>
/* A class conforming to the protocoll will shoudl always fire the appropriate notifications listes below
You need to overwrite setValue:forKeyPath in a conforming class. For convinience you can just call the helper and lett it do the job
*/
FOUNDATION_EXTERN NSString *const MPWillChangeModelNotification;
FOUNDATION_EXTERN NSString *const MPDidChangeModelNotification;
FOUNDATION_EXTERN NSString *const MPModelChangeObservingKeyPathKey;
@required
- (void)beginObservingModelChangesForKeyPath:(NSString *)keyPath;
- (void)endObservingModelChangesForKeyPath:(NSString *)keyPath;
@end
/* Use this helper to fire the right notifications. You can hold an instance to help in you implementation of setValue:forKeyPath and observerModelChangesForKeyPath: */
@interface MPModelChangeObservingHelper : NSObject
+ (void)willChangeModelKeyPath:(NSString *)keyPath observer:(id<MPModelChangeObserving>)observer;
+ (void)didChangeModelKeyPath:(NSString *)keyPath observer:(id<MPModelChangeObserving>)observer;
- (void)beginObservingModelChangesForKeyPath:(NSString *)keyPath;
- (void)endObservingModelChangesForKeyPath:(NSString *)keyPath;
- (void)setValue:(id)value forKeyPath:(NSString *)keyPath forTarget:(id)target;
@end
NS_ASSUME_NONNULL_END