Swiftgram/Source/Private/_ASCollectionGalleryLayoutItem.mm
appleguy 465abb1ded [License] Simplify the Texture license to be pure Apache 2 (removing ASDK-Licenses). (#1077)
* [License] Simplify the Texture license to be pure Apache 2 (removing ASDK-Licenses)

With permission of the Facebook Open Source team, we are simplifying the Texture
license so that clients can rely on the Apache 2 terms that most of Texture is
already covered by. This means that code originally forked from AsyncDisplayKit
will be re-licensed from "BSD 3-clause + PATENTS v2" to Apache 2 without a
PATENTS file.

After getting confirmation that the updates to these core files look good, we'll
propagate this new license header to all files (in this same PR) and get sign-off
from all parties before landing.

* [License] Update all Texture source files to be pure Apache 2.

* Changelog entry for Apache 2 license update.

* Revert "[License] Update all Texture source files to be pure Apache 2."

This reverts commit ffa0fbbba9717d871dd16c4b07539f2f8208fc2b.

* [License] Update all Texture source files to be pure Apache 2, maintaining copyrights.

* [License] Update CONTRIBUTING, README, Podspec & Dangerfile.
2018-08-28 07:39:18 -07:00

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//
// _ASCollectionGalleryLayoutItem.mm
// Texture
//
// Copyright (c) Pinterest, Inc. All rights reserved.
// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
//
#import <AsyncDisplayKit/_ASCollectionGalleryLayoutItem.h>
#import <AsyncDisplayKit/ASCollectionElement.h>
#import <AsyncDisplayKit/ASLayout.h>
#import <AsyncDisplayKit/ASLayoutElementPrivate.h>
#import <AsyncDisplayKit/ASLayoutElementStylePrivate.h>
#import <AsyncDisplayKit/ASLayoutSpec.h>
@implementation _ASGalleryLayoutItem {
std::atomic<ASPrimitiveTraitCollection> _primitiveTraitCollection;
}
@synthesize style;
- (instancetype)initWithItemSize:(CGSize)itemSize collectionElement:(ASCollectionElement *)collectionElement
{
self = [super init];
if (self) {
ASDisplayNodeAssert(! CGSizeEqualToSize(CGSizeZero, itemSize), @"Item size should not be zero");
ASDisplayNodeAssertNotNil(collectionElement, @"Collection element should not be nil");
_itemSize = itemSize;
_collectionElement = collectionElement;
}
return self;
}
ASLayoutElementStyleExtensibilityForwarding
ASPrimitiveTraitCollectionDefaults
- (ASTraitCollection *)asyncTraitCollection
{
ASDisplayNodeAssertNotSupported();
return nil;
}
- (ASLayoutElementType)layoutElementType
{
return ASLayoutElementTypeLayoutSpec;
}
- (NSArray<id<ASLayoutElement>> *)sublayoutElements
{
ASDisplayNodeAssertNotSupported();
return nil;
}
- (BOOL)implementsLayoutMethod
{
return YES;
}
ASLayoutElementLayoutCalculationDefaults
- (ASLayout *)calculateLayoutThatFits:(ASSizeRange)constrainedSize
{
ASDisplayNodeAssert(CGSizeEqualToSize(_itemSize, ASSizeRangeClamp(constrainedSize, _itemSize)),
@"Item size %@ can't fit within the bounds of constrained size %@", NSStringFromCGSize(_itemSize), NSStringFromASSizeRange(constrainedSize));
return [ASLayout layoutWithLayoutElement:self size:_itemSize];
}
#pragma mark - ASLayoutElementAsciiArtProtocol
- (NSString *)asciiArtString
{
return [ASLayoutSpec asciiArtStringForChildren:@[] parentName:[self asciiArtName]];
}
- (NSString *)asciiArtName
{
return [NSMutableString stringWithCString:object_getClassName(self) encoding:NSASCIIStringEncoding];
}
@end