Repo created

iphone/Maps/UI/Search/Tabs/SearchTabViewController.swift

@@ -0,0 +1,87 @@
+@objc(MWMSearchTabViewControllerDelegate)
+protocol SearchTabViewControllerDelegate: SearchOnMapScrollViewDelegate {
+  func searchTabController(_ viewController: SearchTabViewController, didSearch: SearchQuery)
+}
+
+@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 var frameworkHelper = MWMSearchFrameworkHelper.self
+
+  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
+    }
+  }
+  
+  override func viewDidDisappear(_ animated: Bool) {
+    super.viewDidDisappear(animated)
+    activeTab = SearchActiveTab.init(rawValue: tabView.selectedIndex ?? 0) ?? .categories
+  }
+
+  func reloadSearchHistory() {
+    (viewControllers[SearchActiveTab.history.rawValue] as? SearchHistoryViewController)?.reload()
+  }
+}
+
+extension SearchTabViewController: ModallyPresentedViewController {
+  func presentationFrameDidChange(_ frame: CGRect) {
+    viewControllers.forEach { ($0 as? ModallyPresentedViewController)?.presentationFrameDidChange(frame) }
+  }
+}
+
+extension SearchTabViewController: SearchOnMapScrollViewDelegate {
+  func scrollViewDidScroll(_ scrollView: UIScrollView) {
+    delegate?.scrollViewDidScroll(scrollView)
+  }
+
+  func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>) {
+    delegate?.scrollViewWillEndDragging(scrollView, withVelocity: velocity, targetContentOffset: targetContentOffset)
+  }
+}
+
+extension SearchTabViewController: SearchCategoriesViewControllerDelegate {
+  func categoriesViewController(_ viewController: SearchCategoriesViewController,
+                                didSelect category: String) {
+    let preferredLang = AppInfo.shared().languageId
+    let supportedBySearchLang = MWMSearchFrameworkHelper.isLanguageSupported(preferredLang) ? preferredLang : "en"
+    let searchText = L(category, languageCode: supportedBySearchLang) + " "
+    let query = SearchQuery(searchText, locale: supportedBySearchLang, source: .category)
+    delegate?.searchTabController(self, didSearch: query)
+  }
+}
+
+extension SearchTabViewController: SearchHistoryViewControllerDelegate {
+  func searchHistoryViewController(_ viewController: SearchHistoryViewController,
+                                   didSelect query: String) {
+    let query = SearchQuery(query.trimmingCharacters(in: .whitespacesAndNewlines) + " ", source: .history)
+    delegate?.searchTabController(self, didSearch: query)
+  }
+}