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//
// StaticTableViewDataSource.swift
// MullvadVPN
//
// Created by pronebird on 24/05/2019.
// Copyright © 2019 Amagicom AB. All rights reserved.
//
import UIKit
class StaticTableViewRow {
typealias ConfigurationBlock = (IndexPath, UITableViewCell) -> Void
typealias ActionBlock = (IndexPath) -> Void
let reuseIdentifier: String
let configurationBlock: ConfigurationBlock
var isSelectable = true
var isHidden = false
var actionBlock: ActionBlock?
init(reuseIdentifier: String, configurationBlock: @escaping ConfigurationBlock) {
self.reuseIdentifier = reuseIdentifier
self.configurationBlock = configurationBlock
}
}
class StaticTableViewSection {
private(set) var rows = [StaticTableViewRow]()
var isHidden: Bool {
return rows.allSatisfy({ $0.isHidden })
}
func addRows(_ rows: [StaticTableViewRow]) {
self.rows.append(contentsOf: rows)
}
}
class StaticTableViewDataSource: NSObject, UITableViewDataSource, UITableViewDelegate {
private(set) var sections = [StaticTableViewSection]()
func addSections(_ sections: [StaticTableViewSection]) {
self.sections.append(contentsOf: sections)
}
// MARK: - UITableViewDelegate
func tableView(_ tableView: UITableView, shouldHighlightRowAt indexPath: IndexPath) -> Bool {
let row = self.row(for: indexPath)
return row.isSelectable
}
// MARK: - UITableViewDataSource
func numberOfSections(in tableView: UITableView) -> Int {
return sections.reduce(0, { $1.isHidden ? $0 : $0 + 1 })
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return sections[section].rows.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let row = self.row(for: indexPath)
let reuseIdentifier = row.reuseIdentifier
let cell = tableView.dequeueReusableCell(withIdentifier: reuseIdentifier, for: indexPath)
row.configurationBlock(indexPath, cell)
return cell
}
// MARK: - Private
private func row(for indexPath: IndexPath) -> StaticTableViewRow {
let section = self.section(for: indexPath)
let row = section.rows.compactMap({ $0.isHidden ? nil : $0 })
return row[indexPath.row]
}
private func section(for indexPath: IndexPath) -> StaticTableViewSection {
let visibleSections = sections.compactMap({ $0.isHidden ? nil : $0 })
return visibleSections[indexPath.section]
}
}
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