69 lines
3.3 KiB
Swift
69 lines
3.3 KiB
Swift
//
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// ComposeViewModel+Diffable.swift
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// Mastodon
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//
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// Created by MainasuK Cirno on 2021-3-11.
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//
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import UIKit
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import TwitterTextEditor
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extension ComposeViewModel {
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func setupDiffableDataSource(
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for collectionView: UICollectionView,
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dependency: NeedsDependency,
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textEditorViewTextAttributesDelegate: TextEditorViewTextAttributesDelegate,
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composeStatusAttachmentTableViewCellDelegate: ComposeStatusAttachmentCollectionViewCellDelegate,
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composeStatusPollOptionCollectionViewCellDelegate: ComposeStatusPollOptionCollectionViewCellDelegate,
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composeStatusNewPollOptionCollectionViewCellDelegate: ComposeStatusPollOptionAppendEntryCollectionViewCellDelegate,
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composeStatusPollExpiresOptionCollectionViewCellDelegate: ComposeStatusPollExpiresOptionCollectionViewCellDelegate
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) {
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let diffableDataSource = ComposeStatusSection.collectionViewDiffableDataSource(
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for: collectionView,
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dependency: dependency,
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managedObjectContext: context.managedObjectContext,
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composeKind: composeKind,
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textEditorViewTextAttributesDelegate: textEditorViewTextAttributesDelegate,
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composeStatusAttachmentTableViewCellDelegate: composeStatusAttachmentTableViewCellDelegate,
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composeStatusPollOptionCollectionViewCellDelegate: composeStatusPollOptionCollectionViewCellDelegate,
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composeStatusNewPollOptionCollectionViewCellDelegate: composeStatusNewPollOptionCollectionViewCellDelegate,
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composeStatusPollExpiresOptionCollectionViewCellDelegate: composeStatusPollExpiresOptionCollectionViewCellDelegate
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)
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// Note: do not allow reorder due to the images display order following the upload time
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// diffableDataSource.reorderingHandlers.canReorderItem = { item in
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// switch item {
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// case .attachment: return true
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// default: return false
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// }
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//
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// }
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// diffableDataSource.reorderingHandlers.didReorder = { [weak self] transaction in
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// guard let self = self else { return }
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//
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// let items = transaction.finalSnapshot.itemIdentifiers
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// var attachmentServices: [MastodonAttachmentService] = []
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// for item in items {
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// guard case let .attachment(attachmentService) = item else { continue }
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// attachmentServices.append(attachmentService)
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// }
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// self.attachmentServices.value = attachmentServices
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// }
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//
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self.diffableDataSource = diffableDataSource
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var snapshot = NSDiffableDataSourceSnapshot<ComposeStatusSection, ComposeStatusItem>()
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snapshot.appendSections([.repliedTo, .status, .attachment, .poll])
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switch composeKind {
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case .reply(let statusObjectID):
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snapshot.appendItems([.replyTo(statusObjectID: statusObjectID)], toSection: .repliedTo)
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snapshot.appendItems([.input(replyToStatusObjectID: statusObjectID, attribute: composeStatusAttribute)], toSection: .repliedTo)
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case .post:
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snapshot.appendItems([.input(replyToStatusObjectID: nil, attribute: composeStatusAttribute)], toSection: .status)
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}
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diffableDataSource.apply(snapshot, animatingDifferences: false)
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}
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}
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