51 lines
1.8 KiB
Swift
51 lines
1.8 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 SignalServiceKit
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extension StoryMessage {
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func quotedBody(transaction: SDSAnyReadTransaction) -> MessageBody? {
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let caption: String?
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let captionStyles: [NSRangedValue<MessageBodyRanges.CollapsedStyle>]
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switch attachment {
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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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case .file, .foreignReferenceAttachment:
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guard
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let attachmentPointer = DependenciesBridge.shared.tsResourceStore.mediaAttachment(for: self, tx: transaction.asV2Read)
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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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let styledCaption = attachmentPointer.storyMediaCaption
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caption = styledCaption?.text
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captionStyles = styledCaption?.collapsedStyles ?? []
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}
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guard let 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: [:], orderedMentions: [], collapsedStyles: captionStyles)
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)
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}
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}
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