/*

    Copyright (C) 2017 Apple Inc. All Rights Reserved.

    See LICENSE.txt for this sample’s licensing information

    Abstract:

    UICollectionView convenience extensions.

*/

#import "AVMetadataRecordPlay+UICollectionView+Convenience.h"

@implementation UICollectionView (Convenience)

- (NSArray<NSIndexPath *> *)avMetadataRecordPlay_indexPathsForElementsInRect:(CGRect)rect

{

    NSArray *allLayoutAttributes = [self.collectionViewLayout layoutAttributesForElementsInRect:rect];

    if ( allLayoutAttributes.count == 0 ) { return nil; }

    NSMutableArray<NSIndexPath *> *indexPaths = [NSMutableArray arrayWithCapacity:allLayoutAttributes.count];

    for ( UICollectionViewLayoutAttributes *layoutAttributes in allLayoutAttributes ) {

        NSIndexPath *indexPath = layoutAttributes.indexPath;

        [indexPaths addObject:indexPath];

    }

    return indexPaths;

}

@end