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[ASCollectionView] Move ASCollectionViewLayoutInspector to its own file

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Garrett Moon
2016-11-19 15:14:03 -08:00
parent 307a1a0ab6
commit 88d0dff09c
5 changed files with 237 additions and 153 deletions
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70
AsyncDisplayKit/Details/ASCollectionViewFlowLayoutInspector.h
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@@ -10,78 +10,10 @@
#pragma once
#import <Foundation/Foundation.h>
#import <AsyncDisplayKit/ASDimension.h>
#import <AsyncDisplayKit/ASScrollDirection.h>
@class ASCollectionView;
@protocol ASCollectionDataSource;
@protocol ASCollectionDelegate;
#include "ASCollectionViewLayoutInspector.h"
NS_ASSUME_NONNULL_BEGIN
@protocol ASCollectionViewLayoutInspecting <NSObject>
/**
* Asks the inspector to provide a constrained size range for the given collection view node.
*/
- (ASSizeRange)collectionView:(ASCollectionView *)collectionView constrainedSizeForNodeAtIndexPath:(NSIndexPath *)indexPath;
/**
* Return the directions in which your collection view can scroll
*/
- (ASScrollDirection)scrollableDirections;
@optional
/**
* Asks the inspector to provide a constrained size range for the given supplementary node.
*/
- (ASSizeRange)collectionView:(ASCollectionView *)collectionView constrainedSizeForSupplementaryNodeOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath;
/**
* Asks the inspector for the number of supplementary views for the given kind in the specified section.
*/
- (NSUInteger)collectionView:(ASCollectionView *)collectionView supplementaryNodesOfKind:(NSString *)kind inSection:(NSUInteger)section;
/**
* Allow the inspector to respond to delegate changes.
*
* @discussion A great time to update perform selector caches!
*/
- (void)didChangeCollectionViewDelegate:(nullable id<ASCollectionDelegate>)delegate;
/**
* Allow the inspector to respond to dataSource changes.
*
* @discussion A great time to update perform selector caches!
*/
- (void)didChangeCollectionViewDataSource:(nullable id<ASCollectionDataSource>)dataSource;
#pragma mark Deprecated Methods
/**
* Asks the inspector for the number of supplementary sections in the collection view for the given kind.
*
* @deprecated This method will not be called, and it is only deprecated as a reminder to remove it.
* Supplementary elements must exist in the same sections as regular collection view items i.e. -numberOfSectionsInCollectionView:
*/
- (NSUInteger)collectionView:(ASCollectionView *)collectionView numberOfSectionsForSupplementaryNodeOfKind:(NSString *)kind ASDISPLAYNODE_DEPRECATED_MSG("Use ASCollectionNode's method instead.");
@end
/**
* A layout inspector for non-flow layouts that returns a constrained size to let the cells layout itself as
* far as possible based on the scrollable direction of the collection view. It throws exceptions for delegate
* methods that are related to supplementary node's management.
*/
@interface ASCollectionViewLayoutInspector : NSObject <ASCollectionViewLayoutInspecting>
- (instancetype)init NS_UNAVAILABLE;
- (instancetype)initWithCollectionView:(ASCollectionView *)collectionView NS_DESIGNATED_INITIALIZER;
@end
/**
* A layout inspector implementation specific for the sizing behavior of UICollectionViewFlowLayouts
*/