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43 lines
793 B
Objective-C
43 lines
793 B
Objective-C
//
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// ASTipProvider.m
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// AsyncDisplayKit
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//
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// Created by Adlai Holler on 4/12/17.
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// Copyright © 2017 Facebook. All rights reserved.
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//
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#import "ASTipProvider.h"
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#if AS_ENABLE_TIPS
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#import <AsyncDisplayKit/ASAssert.h>
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// Concrete classes
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#import <AsyncDisplayKit/ASLayerBackingTipProvider.h>
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@implementation ASTipProvider
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- (ASTip *)tipForNode:(ASDisplayNode *)node
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{
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ASDisplayNodeFailAssert(@"Subclasses must override %@", NSStringFromSelector(_cmd));
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return nil;
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}
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@end
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@implementation ASTipProvider (Lookup)
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+ (NSArray<ASTipProvider *> *)all
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{
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static NSArray<ASTipProvider *> *providers;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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providers = @[ [ASLayerBackingTipProvider new] ];
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});
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return providers;
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}
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@end
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#endif // AS_ENABLE_TIPS
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