metatext/Extensions/NSMutableAttributedString+Extensions.swift
Justin Mazzocchi 3059604776
VoiceOver wip
2021-02-02 14:38:04 -08:00

38 lines
1.3 KiB
Swift

// Copyright © 2020 Metabolist. All rights reserved.
import Kingfisher
import Mastodon
import UIKit
extension NSMutableAttributedString {
func insert(emojis: [Emoji], view: UIView) {
for emoji in emojis {
let token = ":\(emoji.shortcode):"
while let tokenRange = string.range(of: token) {
let attachment = NSTextAttachment()
attachment.accessibilityLabel = emoji.shortcode
attachment.kf.setImage(with: emoji.url, attributedView: view)
replaceCharacters(in: NSRange(tokenRange, in: string), with: NSAttributedString(attachment: attachment))
}
}
}
func resizeAttachments(toLineHeight lineHeight: CGFloat) {
enumerateAttribute(.attachment, in: NSRange(location: 0, length: length), options: []) { attribute, _, _ in
guard let attachment = attribute as? NSTextAttachment else { return }
attachment.bounds = CGRect(x: 0, y: lineHeight * -0.25, width: lineHeight, height: lineHeight)
}
}
func appendWithSeparator(_ string: NSAttributedString) {
append(.init(string: .separator))
append(string)
}
func appendWithSeparator(_ string: String) {
appendWithSeparator(.init(string: string))
}
}