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Improve blurring mechanism by delaying another run
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| // | ||
| // DebugLog.h | ||
| // Bedim | ||
| // | ||
| // Created by Victor Gama on 16/10/2017. | ||
| // Copyright © 2017 Victor Gama. All rights reserved. | ||
| // | ||
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| #ifndef DebugLog_h | ||
| #define DebugLog_h | ||
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| #ifdef DEBUG | ||
| #define Debug(...) NSLog(__VA_ARGS__); | ||
| #else | ||
| #define Debug(...) while(false){}; | ||
| #endif | ||
| #endif /* DebugLog_h */ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| // | ||
| // NSObject+BDDebouncer.h | ||
| // Bedim | ||
| // | ||
| // Created by Victor Gama on 16/10/2017. | ||
| // Copyright © 2017 Victor Gama. All rights reserved. | ||
| // | ||
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| #import <Foundation/Foundation.h> | ||
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| @interface NSObject (BDDebouncer) | ||
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| - (void)debounce:(nonnull SEL)action withObject:(nullable id)obj delaying:(NSTimeInterval)interval; | ||
| - (void)repeat:(nonnull SEL)action after:(NSTimeInterval)interval; | ||
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| @end |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| // | ||
| // NSObject+BDDebouncer.m | ||
| // Bedim | ||
| // | ||
| // Created by Victor Gama on 16/10/2017. | ||
| // Copyright © 2017 Victor Gama. All rights reserved. | ||
| // | ||
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| #import "NSObject+BDDebouncer.h" | ||
| #import "DebugLog.h" | ||
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| @implementation NSObject (BDDebouncer) | ||
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| - (void)debounce:(SEL)action withObject:(id)obj delaying:(NSTimeInterval)interval { | ||
| __weak typeof(self) weakSelf = self; | ||
| [NSObject cancelPreviousPerformRequestsWithTarget:weakSelf selector:action object:obj]; | ||
| if(![self respondsToSelector:action]) { | ||
| Debug(@"[BDDebouncer] Cancelling debounce: call since %@ does not respond to %@", self, NSStringFromSelector(action)); | ||
| return; | ||
| } | ||
| [weakSelf performSelector:action withObject:obj afterDelay:interval]; | ||
| } | ||
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| - (void)repeat:(SEL)action after:(NSTimeInterval)interval { | ||
| [self debounce:@selector(redo:) withObject:NSStringFromSelector(action) delaying:interval]; | ||
| } | ||
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| - (void)redo:(NSString *)rawAction { | ||
| SEL action = NSSelectorFromString(rawAction); | ||
| Debug(@"[BDDebouncer] Performing redo:(%@) on %@", NSStringFromSelector(action), self); | ||
| dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{ | ||
| if(![self respondsToSelector:action]) { | ||
| NSLog(@"[BDDebouncer] Cancelling redo: call since %@ does not respond to %@", self, NSStringFromSelector(action)); | ||
| return; | ||
| } | ||
| IMP imp = [self methodForSelector:action]; | ||
| void (*func)(id, SEL) = (void *)imp; | ||
| func(self, action); | ||
| }); | ||
| } | ||
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| @end |