39 lines
1.3 KiB
Swift
39 lines
1.3 KiB
Swift
// Copyright © 2020 Metabolist. All rights reserved.
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#if canImport(UIKit)
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import UIKit
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#elseif canImport(AppKit)
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import AppKit
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#endif
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import Kingfisher
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extension NSMutableAttributedString {
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func insert(emojis: [Emoji], onImageLoad: @escaping (() -> Void)) {
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for emoji in emojis {
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let token = ":\(emoji.shortcode):"
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while let tokenRange = string.range(of: token) {
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let attachment = NSTextAttachment()
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let attachmentAttributedString = NSAttributedString(attachment: attachment)
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replaceCharacters(in: NSRange(tokenRange, in: string), with: attachmentAttributedString)
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KingfisherManager.shared.retrieveImage(with: emoji.url) {
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guard case let .success(value) = $0 else { return }
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attachment.image = value.image
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onImageLoad()
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}
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}
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}
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}
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func resizeAttachments(toLineHeight lineHeight: CGFloat) {
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enumerateAttribute(.attachment, in: NSRange(location: 0, length: length), options: []) { attribute, _, _ in
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guard let attachment = attribute as? NSTextAttachment else { return }
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attachment.bounds = CGRect(x: 0, y: lineHeight * -0.25, width: lineHeight, height: lineHeight)
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}
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}
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}
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