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			104 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Objective-C
		
	
			
		
		
	
	
			104 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Objective-C
		
	
| #import <SessionUtilitiesKit/TSYapDatabaseObject.h>
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| #import <SessionMessagingKit/TSMessage.h>
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| 
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| NS_ASSUME_NONNULL_BEGIN
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| 
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| @class TSAttachmentPointer;
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| 
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| typedef NS_ENUM(NSUInteger, TSAttachmentType) {
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|     TSAttachmentTypeDefault = 0,
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|     TSAttachmentTypeVoiceMessage = 1,
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| };
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| 
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| @interface TSAttachment : TSYapDatabaseObject {
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| 
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| @protected
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|     NSString *_contentType;
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| }
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| 
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| // TSAttachment is a base class for TSAttachmentPointer (a yet-to-be-downloaded
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| // incoming attachment) and TSAttachmentStream (an outgoing or already-downloaded
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| // incoming attachment).
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| //
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| // The attachmentSchemaVersion and serverId properties only apply to
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| // TSAttachmentPointer, which can be distinguished by the isDownloaded
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| // property.
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| @property (atomic, readwrite) UInt64 serverId;
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| @property (atomic, readwrite, nullable) NSData *encryptionKey;
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| @property (nonatomic, readonly) NSString *contentType;
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| @property (atomic, readwrite) BOOL isDownloaded;
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| @property (nonatomic) TSAttachmentType attachmentType;
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| @property (nonatomic) NSString *downloadURL;
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| 
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| // Though now required, may incorrectly be 0 on legacy attachments.
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| @property (nonatomic, readonly) UInt32 byteCount;
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| 
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| // Represents the "source" filename sent or received in the protos,
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| // not the filename on disk.
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| @property (nonatomic, readonly, nullable) NSString *sourceFilename;
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| 
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| #pragma mark - Media Album
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| 
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| @property (nonatomic, readonly, nullable) NSString *caption;
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| @property (nonatomic, nullable) NSString *albumMessageId;
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| 
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| #pragma mark -
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| 
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| // This constructor is used for new instances of TSAttachmentPointer,
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| // i.e. undownloaded incoming attachments.
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| - (instancetype)initWithServerId:(UInt64)serverId
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|                    encryptionKey:(nullable NSData *)encryptionKey
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|                        byteCount:(UInt32)byteCount
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|                      contentType:(NSString *)contentType
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|                   sourceFilename:(nullable NSString *)sourceFilename
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|                          caption:(nullable NSString *)caption
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|                   albumMessageId:(nullable NSString *)albumMessageId;
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| 
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| // This constructor is used for new instances of TSAttachmentPointer,
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| // i.e. undownloaded restoring attachments.
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| - (instancetype)initForRestoreWithUniqueId:(NSString *)uniqueId
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|                                contentType:(NSString *)contentType
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|                             sourceFilename:(nullable NSString *)sourceFilename
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|                                    caption:(nullable NSString *)caption
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|                             albumMessageId:(nullable NSString *)albumMessageId;
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| 
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| // This constructor is used for new instances of TSAttachmentStream
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| // that represent new, un-uploaded outgoing attachments.
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| - (instancetype)initWithContentType:(NSString *)contentType
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|                           byteCount:(UInt32)byteCount
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|                      sourceFilename:(nullable NSString *)sourceFilename
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|                             caption:(nullable NSString *)caption
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|                      albumMessageId:(nullable NSString *)albumMessageId;
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| 
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| // This constructor is used for new instances of TSAttachmentStream
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| // that represent downloaded incoming attachments.
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| - (instancetype)initWithPointer:(TSAttachmentPointer *)pointer;
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| 
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| - (nullable instancetype)initWithCoder:(NSCoder *)coder;
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| 
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| - (void)upgradeFromAttachmentSchemaVersion:(NSUInteger)attachmentSchemaVersion;
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| 
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| @property (nonatomic, readonly) BOOL isAnimated;
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| @property (nonatomic, readonly) BOOL isImage;
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| @property (nonatomic, readonly) BOOL isVideo;
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| @property (nonatomic, readonly) BOOL isAudio;
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| @property (nonatomic, readonly) BOOL isVoiceMessage;
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| @property (nonatomic, readonly) BOOL isVisualMedia;
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| @property (nonatomic, readonly) BOOL isOversizeText;
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| 
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| + (NSString *)emojiForMimeType:(NSString *)contentType;
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| 
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| #pragma mark - Media Album
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| 
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| - (nullable TSMessage *)fetchAlbumMessageWithTransaction:(YapDatabaseReadTransaction *)transaction;
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| 
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| // `migrateAlbumMessageId` is only used in the migration to the new multi-attachment message scheme,
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| // and shouldn't be used as a general purpose setter. Instead, `albumMessageId` should be passed as
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| // an initializer param.
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| - (void)migrateAlbumMessageId:(NSString *)albumMesssageId;
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| 
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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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