Peter 9bc996374f Add 'submodules/AsyncDisplayKit/' from commit '02bedc12816e251ad71777f9d2578329b6d2bef6'
git-subtree-dir: submodules/AsyncDisplayKit
git-subtree-mainline: d06f423e0ed3df1fed9bd10d79ee312a9179b632
git-subtree-split: 02bedc12816e251ad71777f9d2578329b6d2bef6
2019-06-11 18:42:43 +01:00

86 lines
2.9 KiB
Objective-C

//
// ASTextInput.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 <UIKit/UIKit.h>
NS_ASSUME_NONNULL_BEGIN
/**
Text position affinity. For example, the offset appears after the last
character on a line is backward affinity, before the first character on
the following line is forward affinity.
*/
typedef NS_ENUM(NSInteger, ASTextAffinity) {
ASTextAffinityForward = 0, ///< offset appears before the character
ASTextAffinityBackward = 1, ///< offset appears after the character
};
/**
A ASTextPosition object represents a position in a text container; in other words,
it is an index into the backing string in a text-displaying view.
ASTextPosition has the same API as Apple's implementation in UITextView/UITextField,
so you can alse use it to interact with UITextView/UITextField.
*/
@interface ASTextPosition : UITextPosition <NSCopying>
@property (nonatomic, readonly) NSInteger offset;
@property (nonatomic, readonly) ASTextAffinity affinity;
+ (instancetype)positionWithOffset:(NSInteger)offset NS_RETURNS_RETAINED;
+ (instancetype)positionWithOffset:(NSInteger)offset affinity:(ASTextAffinity) affinity NS_RETURNS_RETAINED;
- (NSComparisonResult)compare:(id)otherPosition;
@end
/**
A ASTextRange object represents a range of characters in a text container; in other words,
it identifies a starting index and an ending index in string backing a text-displaying view.
ASTextRange has the same API as Apple's implementation in UITextView/UITextField,
so you can alse use it to interact with UITextView/UITextField.
*/
@interface ASTextRange : UITextRange <NSCopying>
@property (nonatomic, readonly) ASTextPosition *start;
@property (nonatomic, readonly) ASTextPosition *end;
@property (nonatomic, readonly, getter=isEmpty) BOOL empty;
+ (instancetype)rangeWithRange:(NSRange)range NS_RETURNS_RETAINED;
+ (instancetype)rangeWithRange:(NSRange)range affinity:(ASTextAffinity) affinity NS_RETURNS_RETAINED;
+ (instancetype)rangeWithStart:(ASTextPosition *)start end:(ASTextPosition *)end NS_RETURNS_RETAINED;
+ (instancetype)defaultRange NS_RETURNS_RETAINED; ///< <{0,0} Forward>
- (NSRange)asRange;
@end
/**
A ASTextSelectionRect object encapsulates information about a selected range of
text in a text-displaying view.
ASTextSelectionRect has the same API as Apple's implementation in UITextView/UITextField,
so you can alse use it to interact with UITextView/UITextField.
*/
@interface ASTextSelectionRect : UITextSelectionRect <NSCopying>
@property (nonatomic) CGRect rect;
@property (nonatomic) UITextWritingDirection writingDirection;
@property (nonatomic) BOOL containsStart;
@property (nonatomic) BOOL containsEnd;
@property (nonatomic) BOOL isVertical;
@end
NS_ASSUME_NONNULL_END