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session-ios/SignalServiceKit/src/Messages/Attachments/OWSAttachmentsProcessor.h

58 lines
2.5 KiB
Objective-C

//
// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
//
NS_ASSUME_NONNULL_BEGIN
extern NSString *const kAttachmentDownloadProgressNotification;
extern NSString *const kAttachmentDownloadProgressKey;
extern NSString *const kAttachmentDownloadAttachmentIDKey;
@class TSAttachmentPointer;
@class TSAttachmentStream;
@class TSMessage;
@class TSNetworkManager;
@class TSStorageManager;
@class TSThread;
@class OWSSignalServiceProtosAttachmentPointer;
@class YapDatabaseReadWriteTransaction;
/**
* Given incoming attachment protos, determines which we support.
* It can download those that we support and notifies threads when it receives unsupported attachments.
*/
@interface OWSAttachmentsProcessor : NSObject
@property (nullable, nonatomic, readonly) NSArray<NSString *> *attachmentIds;
@property (nonatomic, readonly) NSArray<NSString *> *supportedAttachmentIds;
@property (nonatomic, readonly) BOOL hasSupportedAttachments;
- (instancetype)init NS_UNAVAILABLE;
- (instancetype)initWithAttachmentProtos:(NSArray<OWSSignalServiceProtosAttachmentPointer *> *)attachmentProtos
timestamp:(uint64_t)timestamp
relay:(nullable NSString *)relay
thread:(TSThread *)thread
networkManager:(TSNetworkManager *)networkManager
storageManager:(TSStorageManager *)storageManager
transaction:(YapDatabaseReadWriteTransaction *)transaction NS_DESIGNATED_INITIALIZER;
/*
* Retry fetching failed attachment download
*/
- (instancetype)initWithAttachmentPointer:(TSAttachmentPointer *)attachmentPointer
networkManager:(TSNetworkManager *)networkManager
storageManager:(TSStorageManager *)storageManager NS_DESIGNATED_INITIALIZER;
- (void)fetchAttachmentsForMessage:(nullable TSMessage *)message
storageManager:(TSStorageManager *)storageManager
success:(void (^)(TSAttachmentStream *attachmentStream))successHandler
failure:(void (^)(NSError *error))failureHandler;
- (void)fetchAttachmentsForMessage:(nullable TSMessage *)message
transaction:(YapDatabaseReadWriteTransaction *)transaction
success:(void (^)(TSAttachmentStream *attachmentStream))successHandler
failure:(void (^)(NSError *error))failureHandler;
@end
NS_ASSUME_NONNULL_END