mirror of
https://github.com/Swiftgram/Telegram-iOS.git
synced 2025-09-03 19:30:09 +00:00
465abb1ded
* [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.
112 lines
3.6 KiB
Objective-C
112 lines
3.6 KiB
Objective-C
//
|
|
// ASCollectionLayoutState.h
|
|
// Texture
|
|
//
|
|
// Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
|
|
// Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc. All rights reserved.
|
|
// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
|
|
#import <Foundation/Foundation.h>
|
|
#import <UIKit/UIKit.h>
|
|
#import <AsyncDisplayKit/ASBaseDefines.h>
|
|
|
|
@class ASCollectionLayoutContext, ASLayout, ASCollectionElement;
|
|
|
|
NS_ASSUME_NONNULL_BEGIN
|
|
|
|
typedef ASCollectionElement * _Nullable (^ASCollectionLayoutStateGetElementBlock)(ASLayout *);
|
|
|
|
@interface NSMapTable (ASCollectionLayoutConvenience)
|
|
|
|
+ (NSMapTable<ASCollectionElement *, UICollectionViewLayoutAttributes *> *)elementToLayoutAttributesTable;
|
|
|
|
@end
|
|
|
|
AS_SUBCLASSING_RESTRICTED
|
|
|
|
/// An immutable state of the collection layout
|
|
@interface ASCollectionLayoutState : NSObject
|
|
|
|
/// The context used to calculate this object
|
|
@property (readonly) ASCollectionLayoutContext *context;
|
|
|
|
/// The final content size of the collection's layout
|
|
@property (readonly) CGSize contentSize;
|
|
|
|
- (instancetype)init NS_UNAVAILABLE;
|
|
|
|
/**
|
|
* Designated initializer.
|
|
*
|
|
* @param context The context used to calculate this object
|
|
*
|
|
* @param contentSize The content size of the collection's layout
|
|
*
|
|
* @param table A map between elements to their layout attributes. It must contain all elements.
|
|
* It should have NSMapTableObjectPointerPersonality and NSMapTableWeakMemory as key options.
|
|
*/
|
|
- (instancetype)initWithContext:(ASCollectionLayoutContext *)context
|
|
contentSize:(CGSize)contentSize
|
|
elementToLayoutAttributesTable:(NSMapTable<ASCollectionElement *, UICollectionViewLayoutAttributes *> *)table NS_DESIGNATED_INITIALIZER;
|
|
|
|
/**
|
|
* Convenience initializer. Returns an object with zero content size and an empty table.
|
|
*
|
|
* @param context The context used to calculate this object
|
|
*/
|
|
- (instancetype)initWithContext:(ASCollectionLayoutContext *)context;
|
|
|
|
/**
|
|
* Convenience initializer.
|
|
*
|
|
* @param context The context used to calculate this object
|
|
*
|
|
* @param layout The layout describes size and position of all elements.
|
|
*
|
|
* @param getElementBlock A block that can retrieve the collection element from a sublayout of the root layout.
|
|
*/
|
|
- (instancetype)initWithContext:(ASCollectionLayoutContext *)context
|
|
layout:(ASLayout *)layout
|
|
getElementBlock:(ASCollectionLayoutStateGetElementBlock)getElementBlock;
|
|
|
|
/**
|
|
* Returns all layout attributes present in this object.
|
|
*/
|
|
- (NSArray<UICollectionViewLayoutAttributes *> *)allLayoutAttributes;
|
|
|
|
/**
|
|
* Returns layout attributes of elements in the specified rect.
|
|
*
|
|
* @param rect The rect containing the target elements.
|
|
*/
|
|
- (NSArray<UICollectionViewLayoutAttributes *> *)layoutAttributesForElementsInRect:(CGRect)rect;
|
|
|
|
/**
|
|
* Returns layout attributes of the element at the specified index path.
|
|
*
|
|
* @param indexPath The index path of the item.
|
|
*/
|
|
- (nullable UICollectionViewLayoutAttributes *)layoutAttributesForItemAtIndexPath:(NSIndexPath *)indexPath;
|
|
|
|
/**
|
|
* Returns layout attributes of the specified supplementary element.
|
|
*
|
|
* @param kind A string that identifies the type of the supplementary element.
|
|
*
|
|
* @param indexPath The index path of the element.
|
|
*/
|
|
- (nullable UICollectionViewLayoutAttributes *)layoutAttributesForSupplementaryElementOfKind:(NSString *)kind
|
|
atIndexPath:(NSIndexPath *)indexPath;
|
|
|
|
/**
|
|
* Returns layout attributes of the specified element.
|
|
*
|
|
* @element The element.
|
|
*/
|
|
- (nullable UICollectionViewLayoutAttributes *)layoutAttributesForElement:(ASCollectionElement *)element;
|
|
|
|
@end
|
|
|
|
NS_ASSUME_NONNULL_END
|