71 lines
1.6 KiB
Swift
71 lines
1.6 KiB
Swift
//
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// ShadowTableChanges.swift
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// NetNewsWire-iOS
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//
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// Created by Maurice Parker on 10/20/21.
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// Copyright © 2021 Ranchero Software. All rights reserved.
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//
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import Foundation
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struct ShadowTableChanges {
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struct Move: Hashable {
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var from: Int
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var to: Int
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init(_ from: Int, _ to: Int) {
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self.from = from
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self.to = to
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}
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}
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struct RowChanges {
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var section: Int
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var deletes: Set<Int>?
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var inserts: Set<Int>?
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var moves: Set<ShadowTableChanges.Move>?
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var isEmpty: Bool {
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return (deletes?.isEmpty ?? true) && (inserts?.isEmpty ?? true) && (moves?.isEmpty ?? true)
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}
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var deleteIndexPaths: [IndexPath]? {
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guard let deletes = deletes else { return nil }
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return deletes.map { IndexPath(row: $0, section: section) }
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}
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var insertIndexPaths: [IndexPath]? {
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guard let inserts = inserts else { return nil }
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return inserts.map { IndexPath(row: $0, section: section) }
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}
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var moveIndexPaths: [(IndexPath, IndexPath)]? {
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guard let moves = moves else { return nil }
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return moves.map { (IndexPath(row: $0.from, section: section), IndexPath(row: $0.to, section: section)) }
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}
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init(section: Int, deletes: Set<Int>?, inserts: Set<Int>?, moves: Set<Move>?) {
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self.section = section
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self.deletes = deletes
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self.inserts = inserts
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self.moves = moves
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}
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}
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var deletes: Set<Int>?
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var inserts: Set<Int>?
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var moves: Set<Move>?
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var rowChanges: [RowChanges]?
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init(deletes: Set<Int>?, inserts: Set<Int>?, moves: Set<Move>?, rowChanges: [RowChanges]?) {
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self.deletes = deletes
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self.inserts = inserts
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self.moves = moves
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self.rowChanges = rowChanges
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}
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}
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