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			80 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Objective-C
		
	
			
		
		
	
	
			80 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Objective-C
		
	
| //
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| //  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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| //
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| 
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| #import <Foundation/Foundation.h>
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| 
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| NS_ASSUME_NONNULL_BEGIN
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| 
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| @class OWSPrimaryStorage;
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| @class SNProtoSyncMessageRead;
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| @class TSIncomingMessage;
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| @class TSOutgoingMessage;
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| @class TSThread;
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| @class YapDatabaseReadTransaction;
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| @class YapDatabaseReadWriteTransaction;
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| 
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| extern NSString *const kIncomingMessageMarkedAsReadNotification;
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| 
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| // There are four kinds of read receipts:
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| //
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| // * Read receipts that this client sends to linked
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| //   devices to inform them that a message has been read.
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| // * Read receipts that this client receives from linked
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| //   devices that inform this client that a message has been read.
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| //    * These read receipts are saved so that they can be applied
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| //      if they arrive before the corresponding message.
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| // * Read receipts that this client sends to other users
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| //   to inform them that a message has been read.
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| // * Read receipts that this client receives from other users
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| //   that inform this client that a message has been read.
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| //    * These read receipts are saved so that they can be applied
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| //      if they arrive before the corresponding message.
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| //
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| // This manager is responsible for handling and emitting all four kinds.
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| @interface OWSReadReceiptManager : NSObject
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| 
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| - (instancetype)init NS_UNAVAILABLE;
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| - (instancetype)initWithPrimaryStorage:(OWSPrimaryStorage *)primaryStorage NS_DESIGNATED_INITIALIZER;
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| + (instancetype)sharedManager;
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| 
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| #pragma mark - Sender/Recipient Read Receipts
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| 
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| // This method should be called when we receive a read receipt
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| // from a user to whom we have sent a message.
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| //
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| // This method can be called from any thread.
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| - (void)processReadReceiptsFromRecipientId:(NSString *)recipientId
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|                             sentTimestamps:(NSArray<NSNumber *> *)sentTimestamps
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|                              readTimestamp:(uint64_t)readTimestamp;
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| 
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| - (void)applyEarlyReadReceiptsForOutgoingMessageFromLinkedDevice:(TSOutgoingMessage *)message
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|                                                      transaction:(YapDatabaseReadWriteTransaction *)transaction;
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| 
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| #pragma mark - Locally Read
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| 
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| // This method cues this manager:
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| //
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| // * ...to inform the sender that this message was read (if read receipts
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| //      are enabled).
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| // * ...to inform the local user's other devices that this message was read.
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| //
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| // Both types of messages are deduplicated.
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| //
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| // This method can be called from any thread.
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| - (void)messageWasReadLocally:(TSIncomingMessage *)message;
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| 
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| - (void)markAsReadLocallyBeforeSortId:(uint64_t)sortId thread:(TSThread *)thread;
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| 
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| #pragma mark - Settings
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| 
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| - (void)prepareCachedValues;
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| 
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| - (BOOL)areReadReceiptsEnabled;
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| - (BOOL)areReadReceiptsEnabledWithTransaction:(YapDatabaseReadTransaction *)transaction;
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| - (void)setAreReadReceiptsEnabled:(BOOL)value;
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| 
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| @end
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| 
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| NS_ASSUME_NONNULL_END
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