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//  ASTextKitComponents.h
//  AsyncDisplayKit
//  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>
NS_ASSUME_NONNULL_BEGIN
AS_SUBCLASSING_RESTRICTED
@interface ASTextKitComponents : NSObject
 @abstract Creates the stack of TextKit components.
 @param attributedSeedString The attributed string to seed the returned text storage with, or nil to receive an blank text storage.
 @param textContainerSize The size of the text-container. Typically, size specifies the constraining width of the layout, and CGFLOAT_MAX for height. Pass CGSizeZero if these components will be hooked up to a UITextView, which will manage the text container's size itself.
 @return An `ASTextKitComponents` containing the created components. The text view component will be nil.
 @discussion The returned components will be hooked up together, so they are ready for use as a system upon return.
+ (instancetype)componentsWithAttributedSeedString:(nullable NSAttributedString *)attributedSeedString
                                 textContainerSize:(CGSize)textContainerSize;
 @abstract Creates the stack of TextKit components.
 @param textStorage The NSTextStorage to use.
 @param textContainerSize The size of the text-container. Typically, size specifies the constraining width of the layout, and CGFLOAT_MAX for height. Pass CGSizeZero if these components will be hooked up to a UITextView, which will manage the text container's size itself.
 @param layoutManager The NSLayoutManager to use.
 @return An `ASTextKitComponents` containing the created components. The text view component will be nil.
 @discussion The returned components will be hooked up together, so they are ready for use as a system upon return.
+ (instancetype)componentsWithTextStorage:(NSTextStorage *)textStorage
                        textContainerSize:(CGSize)textContainerSize
                            layoutManager:(NSLayoutManager *)layoutManager;
 @abstract Returns the bounding size for the text view's text.
 @param constrainedWidth The constraining width to be used during text-sizing. Usually, this value should be the receiver's calculated size.
 @result A CGSize representing the bounding size for the receiver's text.
- (CGSize)sizeForConstrainedWidth:(CGFloat)constrainedWidth;
- (CGSize)sizeForConstrainedWidth:(CGFloat)constrainedWidth
              forMaxNumberOfLines:(NSInteger)numberOfLines;
@property (nonatomic, strong, readonly) NSTextStorage *textStorage;
@property (nonatomic, strong, readonly) NSTextContainer *textContainer;
@property (nonatomic, strong, readonly) NSLayoutManager *layoutManager;
@property (nullable, nonatomic, strong) UITextView *textView;
NS_ASSUME_NONNULL_END

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