Swiftgram/Source/Details/ASTableLayoutController.m
Peter 587d2b2132 Merge commit '3ccc2f0f15d2e4ed7105f0ef6aea575e05cfd7ad'
# Conflicts:
#	AsyncDisplayKit.xcodeproj/project.pbxproj
#	Source/ASDisplayNode.mm
#	Source/ASMapNode.mm
#	Source/Details/ASDataController.mm
#	Source/Details/ASPINRemoteImageDownloader.h
#	Source/Details/ASPINRemoteImageDownloader.m
2017-08-04 13:12:06 +03:00

64 lines
2.4 KiB
Objective-C

//
// ASTableLayoutController.m
// Texture
//
// 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 /ASDK-Licenses directory of this source tree. An additional
// grant of patent rights can be found in the PATENTS file in the same directory.
//
// Modifications to this file made after 4/13/2017 are: Copyright (c) 2017-present,
// Pinterest, Inc. Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
#ifndef MINIMAL_ASDK
#import <AsyncDisplayKit/ASTableLayoutController.h>
#import <UIKit/UIKit.h>
#import <AsyncDisplayKit/ASAssert.h>
#import <AsyncDisplayKit/ASElementMap.h>
@interface ASTableLayoutController()
@end
@implementation ASTableLayoutController
- (instancetype)initWithTableView:(UITableView *)tableView
{
if (!(self = [super init])) {
return nil;
}
_tableView = tableView;
return self;
}
#pragma mark - ASLayoutController
- (NSHashTable<ASCollectionElement *> *)elementsForScrolling:(ASScrollDirection)scrollDirection rangeMode:(ASLayoutRangeMode)rangeMode rangeType:(ASLayoutRangeType)rangeType map:(ASElementMap *)map
{
CGRect bounds = _tableView.bounds;
ASRangeTuningParameters tuningParameters = [self tuningParametersForRangeMode:rangeMode rangeType:rangeType];
CGRect rangeBounds = CGRectExpandToRangeWithScrollableDirections(bounds, tuningParameters, ASScrollDirectionVerticalDirections, scrollDirection);
NSArray *array = [_tableView indexPathsForRowsInRect:rangeBounds];
return ASPointerTableByFlatMapping(array, NSIndexPath *indexPath, [map elementForItemAtIndexPath:indexPath]);
}
- (void)allElementsForScrolling:(ASScrollDirection)scrollDirection rangeMode:(ASLayoutRangeMode)rangeMode displaySet:(NSHashTable<ASCollectionElement *> *__autoreleasing _Nullable *)displaySet preloadSet:(NSHashTable<ASCollectionElement *> *__autoreleasing _Nullable *)preloadSet map:(ASElementMap *)map
{
if (displaySet == NULL || preloadSet == NULL) {
return;
}
*displaySet = [self elementsForScrolling:scrollDirection rangeMode:rangeMode rangeType:ASLayoutRangeTypeDisplay map:map];
*preloadSet = [self elementsForScrolling:scrollDirection rangeMode:rangeMode rangeType:ASLayoutRangeTypePreload map:map];
return;
}
@end
#endif