83 lines
2.9 KiB
Swift
83 lines
2.9 KiB
Swift
//
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// Copyright 2022 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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//
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import Foundation
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extension StoryMessage {
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@objc
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func quotedBody(transaction: SDSAnyReadTransaction) -> MessageBody? {
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switch attachment {
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case .file(let file):
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guard let attachment = TSAttachment.anyFetch(uniqueId: file.attachmentId, transaction: transaction) else {
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owsFailDebug("Missing attachment for story message \(timestamp)")
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return nil
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}
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guard let caption = attachment.caption else {
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return nil
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}
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// Note: stripping any over-extended styles to the caption
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// length will happen at hydration time, which is required
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// to turn a MessageBody into something we can display.
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return MessageBody(
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text: caption,
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ranges: MessageBodyRanges(mentions: [:], styles: file.captionStyles)
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)
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case .text(let attachment):
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switch attachment.textContent {
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case .styledRanges(let body):
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return body.asMessageBody()
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case .styled(let body, _):
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return MessageBody(text: body, ranges: .empty)
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case .empty:
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guard let urlString = attachment.preview?.urlString else {
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return nil
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}
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return MessageBody(text: urlString, ranges: .empty)
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}
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}
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}
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@objc
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func quotedAttachment(transaction: SDSAnyReadTransaction) -> TSAttachment? {
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switch attachment {
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case .file(let file):
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guard let attachment = TSAttachment.anyFetch(uniqueId: file.attachmentId, transaction: transaction) else {
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owsFailDebug("Missing attachment for story message \(timestamp)")
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return nil
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}
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return attachment
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case .text:
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return nil
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}
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}
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@objc
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func thumbnailImage(transaction: SDSAnyReadTransaction) -> UIImage? {
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switch attachment {
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case .text:
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return nil
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case .file(let file):
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guard let attachment = TSAttachment.anyFetch(uniqueId: file.attachmentId, transaction: transaction) else {
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owsFailDebug("Missing attachment for story message \(timestamp)")
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return nil
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}
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if let stream = attachment as? TSAttachmentStream {
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return stream.thumbnailImageSmallSync()
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} else if let blurHash = attachment.blurHash {
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return BlurHash.image(for: blurHash)
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} else {
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return nil
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}
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}
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}
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@objc
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func thumbnailView() -> UIView? {
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guard case .text(let attachment) = attachment else { return nil }
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return TextAttachmentView(attachment: attachment).asThumbnailView()
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}
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}
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