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101 lines
3.4 KiB
Objective-C
101 lines
3.4 KiB
Objective-C
//
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// ASInternalHelpers.h
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// Texture
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//
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// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the /ASDK-Licenses directory of this source tree. An additional
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// grant of patent rights can be found in the PATENTS file in the same directory.
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//
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// Modifications to this file made after 4/13/2017 are: Copyright (c) 2017-present,
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// Pinterest, Inc. Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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#import "ASAvailability.h"
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#import <UIKit/UIKit.h>
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#import <AsyncDisplayKit/ASBaseDefines.h>
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NS_ASSUME_NONNULL_BEGIN
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ASDISPLAYNODE_EXTERN_C_BEGIN
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BOOL ASSubclassOverridesSelector(Class superclass, Class subclass, SEL selector);
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BOOL ASSubclassOverridesClassSelector(Class superclass, Class subclass, SEL selector);
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/// Replace a method from the given class with a block and returns the original method IMP
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IMP ASReplaceMethodWithBlock(Class c, SEL origSEL, id block);
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/// Dispatches the given block to the main queue if not already running on the main thread
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void ASPerformBlockOnMainThread(void (^block)());
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/// Dispatches the given block to a background queue with priority of DISPATCH_QUEUE_PRIORITY_DEFAULT if not already run on a background queue
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void ASPerformBlockOnBackgroundThread(void (^block)()); // DISPATCH_QUEUE_PRIORITY_DEFAULT
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/// For deallocation of objects on a background thread without GCD overhead / thread explosion
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void ASPerformBackgroundDeallocation(id object);
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CGFloat ASScreenScale();
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CGSize ASFloorSizeValues(CGSize s);
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CGFloat ASFloorPixelValue(CGFloat f);
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CGSize ASCeilSizeValues(CGSize s);
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CGFloat ASCeilPixelValue(CGFloat f);
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CGFloat ASRoundPixelValue(CGFloat f);
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BOOL ASClassRequiresMainThreadDeallocation(Class _Nullable c);
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Class _Nullable ASGetClassFromType(const char * _Nullable type);
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ASDISPLAYNODE_EXTERN_C_END
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ASDISPLAYNODE_INLINE BOOL ASImageAlphaInfoIsOpaque(CGImageAlphaInfo info) {
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switch (info) {
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case kCGImageAlphaNone:
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case kCGImageAlphaNoneSkipLast:
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case kCGImageAlphaNoneSkipFirst:
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return YES;
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default:
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return NO;
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}
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}
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/**
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@summary Conditionally performs UIView geometry changes in the given block without animation.
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Used primarily to circumvent UITableView forcing insertion animations when explicitly told not to via
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`UITableViewRowAnimationNone`. More info: https://github.com/facebook/AsyncDisplayKit/pull/445
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@param withoutAnimation Set to `YES` to perform given block without animation
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@param block Perform UIView geometry changes within the passed block
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*/
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ASDISPLAYNODE_INLINE void ASPerformBlockWithoutAnimation(BOOL withoutAnimation, void (^block)()) {
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if (withoutAnimation) {
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[UIView performWithoutAnimation:block];
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} else {
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block();
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}
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}
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ASDISPLAYNODE_INLINE void ASBoundsAndPositionForFrame(CGRect rect, CGPoint origin, CGPoint anchorPoint, CGRect *bounds, CGPoint *position)
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{
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*bounds = (CGRect){ origin, rect.size };
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*position = CGPointMake(rect.origin.x + rect.size.width * anchorPoint.x,
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rect.origin.y + rect.size.height * anchorPoint.y);
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}
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@interface NSIndexPath (ASInverseComparison)
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- (NSComparisonResult)asdk_inverseCompare:(NSIndexPath *)otherIndexPath;
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@end
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NS_ASSUME_NONNULL_END
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