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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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#import <Foundation/Foundation.h>
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NS_ASSUME_NONNULL_BEGIN
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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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extern NSString *const kIncomingMessageMarkedAsReadNotification;
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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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- (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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#pragma mark - Sender/Recipient Read Receipts
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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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- (void)applyEarlyReadReceiptsForOutgoingMessageFromLinkedDevice:(TSOutgoingMessage *)message
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transaction:(YapDatabaseReadWriteTransaction *)transaction;
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#pragma mark - Locally Read
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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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- (void)markAsReadLocallyBeforeSortId:(uint64_t)sortId thread:(TSThread *)thread;
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#pragma mark - Settings
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- (void)prepareCachedValues;
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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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@end
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NS_ASSUME_NONNULL_END
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