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