41 lines
951 B
Objective-C
41 lines
951 B
Objective-C
//
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// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
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//
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NS_ASSUME_NONNULL_BEGIN
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typedef NS_ENUM(NSInteger, ConversationViewLayoutAlignment) {
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ConversationViewLayoutAlignment_Incoming,
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ConversationViewLayoutAlignment_Outgoing,
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ConversationViewLayoutAlignment_FullWidth,
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ConversationViewLayoutAlignment_Center,
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};
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@protocol ConversationViewLayoutItem <NSObject>
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// TODO: Perhaps maxMessageWidth should be an implementation detail of the
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// message cells.
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- (CGSize)cellSizeForViewWidth:(int)viewWidth maxMessageWidth:(int)maxMessageWidth;
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- (ConversationViewLayoutAlignment)layoutAlignment;
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@end
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#pragma mark -
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@protocol ConversationViewLayoutDelegate <NSObject>
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- (NSArray<id<ConversationViewLayoutItem>> *)layoutItems;
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@end
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#pragma mark -
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@interface ConversationViewLayout : UICollectionViewLayout
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@property (nonatomic, weak) id<ConversationViewLayoutDelegate> delegate;
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@end
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NS_ASSUME_NONNULL_END
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