iphone/Maps/UI/Search/Tabs/SearchTabViewController.swift - master - githubmirror/omim

iphone/Maps/UI/Search/Tabs/SearchTabViewController.swift
73 строки3 KB
Alexander Boriskov
[iOS] Refactored old styles
12 фев 2020, 14:37
12 фев 2020, 14:3791d7242
@objc(MWMSearchTabViewControllerDelegate)
protocol SearchTabViewControllerDelegate: class {
  func searchTabController(_ viewContoller: SearchTabViewController, didSearch: String)
}

@objc(MWMSearchTabViewController)
final class SearchTabViewController: TabViewController {
  private enum SearchActiveTab: Int {
    case history = 0
    case categories
  }
  
  private static let selectedIndexKey = "SearchTabViewController_selectedIndexKey"
  @objc weak var delegate: SearchTabViewControllerDelegate?
  
  private lazy var frameworkHelper: MWMSearchFrameworkHelper = {
    return MWMSearchFrameworkHelper()
  }()
  
  private var activeTab: SearchActiveTab = SearchActiveTab.init(rawValue:
    UserDefaults.standard.integer(forKey: SearchTabViewController.selectedIndexKey)) ?? .categories {
    didSet {
      UserDefaults.standard.set(activeTab.rawValue, forKey: SearchTabViewController.selectedIndexKey)
    }
  }
  
  override func viewDidLoad() {
    super.viewDidLoad()
    
    let history = SearchHistoryViewController(frameworkHelper: frameworkHelper,
                                              delegate: self)
    history.title = L("history")
    
    let categories = SearchCategoriesViewController(frameworkHelper: frameworkHelper,
                                                    delegate: self)
    categories.title = L("categories")
    viewControllers = [history, categories]
    
    if frameworkHelper.isSearchHistoryEmpty() {
      tabView.selectedIndex = SearchActiveTab.categories.rawValue
    } else {
      tabView.selectedIndex = activeTab.rawValue
    }
    tabView.delegate = self
  }
  
  override func viewDidDisappear(_ animated: Bool) {
    super.viewDidDisappear(animated)
    activeTab = SearchActiveTab.init(rawValue: tabView.selectedIndex ?? 0) ?? .categories
  }
}

extension SearchTabViewController: SearchCategoriesViewControllerDelegate {
  func categoriesViewController(_ viewController: SearchCategoriesViewController,
                                didSelect category: String) {
    let query = L(category) + " "
    delegate?.searchTabController(self, didSearch: query)
  }
}

extension SearchTabViewController: SearchHistoryViewControllerDelegate {
  func searchHistoryViewController(_ viewController: SearchHistoryViewController,
                             didSelect query: String) {
    delegate?.searchTabController(self, didSearch: query)
  }
}

extension SearchTabViewController: TabViewDelegate {
  func tabView(_ tabView: TabView, didSelectTabAt index: Int) {
    let selectedTab = index == 0 ? kStatHistory.uppercased() : kStatCategories.uppercased()
    Statistics.logEvent(kStatSearchTabSelected, withParameters: [kStatTab : selectedTab])
  }
}