mirror of
https://github.com/metabolist/metatext.git
synced 2024-05-19 16:58:06 +00:00
56 lines
1.8 KiB
Swift
56 lines
1.8 KiB
Swift
// Copyright © 2021 Metabolist. All rights reserved.
|
|
|
|
import SDWebImage
|
|
import UIKit
|
|
|
|
final class AnimatedAttachmentLabel: UILabel, EmojiInsertable {
|
|
override init(frame: CGRect) {
|
|
super.init(frame: frame)
|
|
}
|
|
|
|
@available(*, unavailable)
|
|
required init?(coder: NSCoder) {
|
|
fatalError("init(coder:) has not been implemented")
|
|
}
|
|
|
|
override func drawText(in rect: CGRect) {
|
|
super.drawText(in: rect)
|
|
|
|
guard let attributedText = attributedText else { return }
|
|
|
|
var attachmentImageViews = Set<SDAnimatedImageView>()
|
|
|
|
attributedText.enumerateAttribute(
|
|
.attachment,
|
|
in: NSRange(location: 0, length: attributedText.length),
|
|
options: .longestEffectiveRangeNotRequired) { attachment, _, _ in
|
|
guard let animatedAttachment = attachment as? AnimatedTextAttachment,
|
|
let imageBounds = animatedAttachment.imageBounds
|
|
else { return }
|
|
|
|
animatedAttachment.imageView.frame = imageBounds
|
|
|
|
// iOS 15 needs this for some inexplicable reason
|
|
if #available(iOS 15, *) {
|
|
animatedAttachment.imageView.frame.origin.y -= font.lineHeight
|
|
}
|
|
|
|
animatedAttachment.imageView.contentMode = .scaleAspectFit
|
|
|
|
if animatedAttachment.imageView.superview != self {
|
|
addSubview(animatedAttachment.imageView)
|
|
}
|
|
|
|
attachmentImageViews.insert(animatedAttachment.imageView)
|
|
}
|
|
|
|
for subview in subviews {
|
|
guard let attachmentImageView = subview as? SDAnimatedImageView else { continue }
|
|
|
|
if !attachmentImageViews.contains(attachmentImageView) {
|
|
attachmentImageView.removeFromSuperview()
|
|
}
|
|
}
|
|
}
|
|
}
|