mastodon-app-ufficiale-ipho.../MastodonSDK/Sources/MastodonUI/DataSource/CustomEmojiPickerSection+Di...

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2.8 KiB
Swift
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//
// CustomEmojiPickerSection+Diffable.swift
//
//
// Created by MainasuK on 22/10/10.
//
import UIKit
import MastodonCore
extension CustomEmojiPickerSection {
static func collectionViewDiffableDataSource(
collectionView: UICollectionView,
authContext: AuthContext,
context: AppContext
) -> UICollectionViewDiffableDataSource<CustomEmojiPickerSection, CustomEmojiPickerItem> {
let dataSource = UICollectionViewDiffableDataSource<CustomEmojiPickerSection, CustomEmojiPickerItem>(collectionView: collectionView) { [weak context] collectionView, indexPath, item -> UICollectionViewCell? in
guard let _ = context else { return nil }
switch item {
case .emoji(let attribute):
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: String(describing: CustomEmojiPickerItemCollectionViewCell.self), for: indexPath) as! CustomEmojiPickerItemCollectionViewCell
let placeholder = UIImage.placeholder(size: CustomEmojiPickerItemCollectionViewCell.itemSize, color: .systemFill)
.af.imageRounded(withCornerRadius: 4)
let isAnimated = !UserDefaults.shared.preferredStaticEmoji
let url = URL(string: isAnimated ? attribute.emoji.url : attribute.emoji.staticURL)
cell.emojiImageView.sd_setImage(
with: url,
placeholderImage: placeholder,
options: [],
context: nil
)
cell.accessibilityLabel = attribute.emoji.shortcode
return cell
}
}
dataSource.supplementaryViewProvider = { [weak dataSource] collectionView, kind, indexPath -> UICollectionReusableView? in
guard let dataSource = dataSource else { return nil }
let sections = dataSource.snapshot().sectionIdentifiers
guard indexPath.section < sections.count else { return nil }
let section = sections[indexPath.section]
switch kind {
case String(describing: CustomEmojiPickerHeaderCollectionReusableView.self):
let header = collectionView.dequeueReusableSupplementaryView(ofKind: kind, withReuseIdentifier: String(describing: CustomEmojiPickerHeaderCollectionReusableView.self), for: indexPath) as! CustomEmojiPickerHeaderCollectionReusableView
switch section {
case .uncategorized:
header.titleLabel.text = authContext.mastodonAuthenticationBox.domain.uppercased()
case .emoji(let name):
header.titleLabel.text = name
}
return header
default:
assertionFailure()
return nil
}
}
return dataSource
}
}