Swiftgram/AsyncDisplayKit/Details/ASLayoutController.h

58 lines
1.8 KiB
Objective-C

/* Copyright (c) 2014-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import <UIKit/UIKit.h>
#import <AsyncDisplayKit/ASBaseDefines.h>
#import <AsyncDisplayKit/ASLayoutRangeType.h>
#import <AsyncDisplayKit/ASScrollDirection.h>
NS_ASSUME_NONNULL_BEGIN
@class ASCellNode;
typedef struct {
CGFloat leadingBufferScreenfuls;
CGFloat trailingBufferScreenfuls;
} ASRangeTuningParameters;
@protocol ASLayoutController <NSObject>
/**
* Tuning parameters for the range.
*
* Defaults to a trailing buffer of one screenful and a leading buffer of two screenfuls.
*/
- (void)setTuningParameters:(ASRangeTuningParameters)tuningParameters forRangeType:(ASLayoutRangeType)rangeType;
- (ASRangeTuningParameters)tuningParametersForRangeType:(ASLayoutRangeType)rangeType;
// FIXME: This method can be removed once ASRangeControllerBeta becomes the main version.
- (BOOL)shouldUpdateForVisibleIndexPaths:(NSArray<NSIndexPath *> *)indexPaths rangeType:(ASLayoutRangeType)rangeType;
- (NSSet *)indexPathsForScrolling:(ASScrollDirection)scrollDirection rangeType:(ASLayoutRangeType)rangeType;
@optional
- (void)insertNodesAtIndexPaths:(NSArray<NSIndexPath *> *)indexPaths withSizes:(NSArray<NSValue *> *)nodeSizes;
- (void)deleteNodesAtIndexPaths:(NSArray<NSIndexPath *> *)indexPaths;
- (void)insertSections:(NSArray<NSArray <ASCellNode *>*> *)sections atIndexSet:(NSIndexSet *)indexSet;
- (void)deleteSectionsAtIndexSet:(NSIndexSet *)indexSet;
- (void)setVisibleNodeIndexPaths:(NSArray<NSIndexPath *> *)indexPaths;
- (void)setViewportSize:(CGSize)viewportSize;
- (CGSize)viewportSize;
@end
NS_ASSUME_NONNULL_END