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4fa03a01d1
Refactor how we do ranges so they can be arbitrarily managed. Introduce the concept of a preload range.
57 lines
1.9 KiB
Objective-C
57 lines
1.9 KiB
Objective-C
/* Copyright (c) 2014-present, Facebook, Inc.
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* All rights reserved.
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*
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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 root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import <UIKit/UIKit.h>
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#import <AsyncDisplayKit/ASBaseDefines.h>
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#import <AsyncDisplayKit/ASLayoutRangeType.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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@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)tuningParametersForRangeType:(ASLayoutRangeType)rangeType;
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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 rangeType:(ASLayoutRangeType)rangeType;
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- (NSSet *)indexPathsForScrolling:(enum ASScrollDirection)scrollDirection viewportSize:(CGSize)viewportSize rangeType:(ASLayoutRangeType)rangeType;
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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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