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9c877c51af
This refactors how we do ranges and implements tuning parameters for a "Render" range and a "Preload" range
55 lines
1.7 KiB
Objective-C
55 lines
1.7 KiB
Objective-C
// Copyright 2004-present Facebook. All Rights Reserved.
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#import <UIKit/UIKit.h>
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#import <AsyncDisplayKit/ASBaseDefines.h>
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typedef struct {
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CGFloat leadingBufferScreenfuls;
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CGFloat trailingBufferScreenfuls;
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} ASRangeTuningParameters;
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typedef NS_ENUM(NSInteger, ASScrollDirection) {
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ASScrollDirectionNone,
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ASScrollDirectionRight,
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ASScrollDirectionLeft,
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ASScrollDirectionUp,
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ASScrollDirectionDown,
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};
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typedef NS_ENUM(NSInteger, ASLayoutRange) {
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ASLayoutRangeRender,
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ASLayoutRangePreload
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};
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@protocol ASLayoutController <NSObject>
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/**
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* Tuning parameters for the range.
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*
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* Defaults to a trailing buffer of one screenful and a leading buffer of two screenfuls.
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*/
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- (ASRangeTuningParameters)tuningParametersForRange:(ASLayoutRange)range;
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- (void)insertNodesAtIndexPaths:(NSArray *)indexPaths withSizes:(NSArray *)nodeSizes;
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- (void)deleteNodesAtIndexPaths:(NSArray *)indexPaths;
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- (void)insertSections:(NSArray *)sections atIndexSet:(NSIndexSet *)indexSet;
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- (void)deleteSectionsAtIndexSet:(NSIndexSet *)indexSet;
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- (void)setVisibleNodeIndexPaths:(NSArray *)indexPaths;
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- (BOOL)shouldUpdateForVisibleIndexPaths:(NSArray *)indexPaths viewportSize:(CGSize)viewportSize range:(ASLayoutRange)range;
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- (NSSet *)indexPathsForScrolling:(enum ASScrollDirection)scrollDirection viewportSize:(CGSize)viewportSize range:(ASLayoutRange)range;
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@property (nonatomic, assign) ASRangeTuningParameters tuningParameters ASDISPLAYNODE_DEPRECATED;
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- (BOOL)shouldUpdateForVisibleIndexPath:(NSArray *)indexPath viewportSize:(CGSize)viewportSize ASDISPLAYNODE_DEPRECATED;
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- (NSSet *)indexPathsForScrolling:(enum ASScrollDirection)scrollDirection viewportSize:(CGSize)viewportSize ASDISPLAYNODE_DEPRECATED;
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@end
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