[ios] Fix place page memory leaks

Signed-off-by: Kiryl Kaveryn <kirylkaveryn@gmail.com>

iphone/Maps/UI/PlacePage/Components/ElevationProfile/ElevationProfilePresenter.swift

@@ -26,8 +26,8 @@ fileprivate struct DescriptionsViewModel {
 
 final class ElevationProfilePresenter: NSObject {
   private weak var view: ElevationProfileViewProtocol?
-  private var trackData: PlacePageTrackData
-  private let delegate: ElevationProfileViewControllerDelegate?
+  private weak var trackData: PlacePageTrackData?
+  private weak var delegate: ElevationProfileViewControllerDelegate?
   private let bookmarkManager: BookmarksManager = .shared()
 
   private let cellSpacing: CGFloat = 8
@@ -85,7 +85,8 @@ extension ElevationProfilePresenter: ElevationProfilePresenterProtocol {
     view?.isChartViewHidden = false
 
     let kMinPointsToDraw = 2
-    guard let profileData = trackData.elevationProfileData,
+    guard let trackData = trackData,
+          let profileData = trackData.elevationProfileData,
           let chartData,
           chartData.points.count >= kMinPointsToDraw else {
       view?.userInteractionEnabled = false

iphone/Maps/UI/PlacePage/PlacePage.storyboard

@@ -1270,7 +1270,7 @@
                         <rect key="frame" x="0.0" y="0.0" width="375" height="72"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                         <subviews>
-                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="spW-XI-KSY" customClass="PlacePageHeaderView" customModule="CoMaps" customModuleProvider="target">
+                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="spW-XI-KSY">
                                 <rect key="frame" x="0.0" y="62" width="375" height="10"/>
                                 <color key="backgroundColor" systemColor="systemBackgroundColor"/>
                                 <constraints>
@@ -1280,7 +1280,7 @@
                                     <userDefinedRuntimeAttribute type="string" keyPath="styleName" value="PPNavigationShadowView"/>
                                 </userDefinedRuntimeAttributes>
                             </view>
-                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="fqh-H3-eji" customClass="PlacePageHeaderView" customModule="CoMaps" customModuleProvider="target">
+                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="fqh-H3-eji">
                                 <rect key="frame" x="0.0" y="20" width="375" height="52"/>
                                 <subviews>
                                     <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="Gdy-g5-gbM">
@@ -1405,13 +1405,13 @@
         <image name="ic_arrow_gray_down" width="28" height="28"/>
         <image name="ic_placepage_open_hours" width="28" height="28"/>
         <systemColor name="separatorColor">
-            <color red="0.23529411759999999" green="0.23529411759999999" blue="0.26274509800000001" alpha="0.28999999999999998" colorSpace="custom" customColorSpace="sRGB"/>
+            <color red="0.23529411764705882" green="0.23529411764705882" blue="0.2627450980392157" alpha="0.28999999999999998" colorSpace="custom" customColorSpace="sRGB"/>
         </systemColor>
         <systemColor name="systemBackgroundColor">
             <color white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
         </systemColor>
         <systemColor name="systemRedColor">
-            <color red="1" green="0.23137254900000001" blue="0.18823529410000001" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+            <color red="1" green="0.23137254901960785" blue="0.18823529411764706" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
         </systemColor>
     </resources>
 </document>

iphone/Maps/UI/PlacePage/PlacePageLayout/Layouts/PlacePageCommonLayout.swift

@@ -1,81 +1,81 @@
 class PlacePageCommonLayout: NSObject, IPlacePageLayout {
-  
+
   private let distanceFormatter = DistanceFormatter.self
   private let altitudeFormatter = AltitudeFormatter.self
 
   private var placePageData: PlacePageData
   private var interactor: PlacePageInteractor
   private let storyboard: UIStoryboard
+  private var lastLocation: CLLocation?
+
   weak var presenter: PlacePagePresenterProtocol?
 
-  fileprivate var lastLocation: CLLocation?
-
-  lazy var headerViewControllers: [UIViewController] = {
+  var headerViewControllers: [UIViewController] {
     [headerViewController, previewViewController]
-  }()
+  }
 
   lazy var bodyViewControllers: [UIViewController] = {
-    return configureViewControllers()
+    configureViewControllers()
   }()
 
   var actionBar: ActionBarViewController? {
-    return actionBarViewController
+    actionBarViewController
   }
 
   var navigationBar: UIViewController? {
-    return placePageNavigationViewController
+    placePageNavigationViewController
   }
-  
+
   lazy var headerViewController: PlacePageHeaderViewController = {
     PlacePageHeaderBuilder.build(data: placePageData, delegate: interactor, headerType: .flexible)
   }()
 
-  lazy var previewViewController: PlacePagePreviewViewController = {
+  private lazy var previewViewController: PlacePagePreviewViewController = {
     let vc = storyboard.instantiateViewController(ofType: PlacePagePreviewViewController.self)
     vc.placePagePreviewData = placePageData.previewData
     return vc
-  } ()
+  }()
 
-  lazy var wikiDescriptionViewController: WikiDescriptionViewController = {
+  private lazy var wikiDescriptionViewController: WikiDescriptionViewController = {
     let vc = storyboard.instantiateViewController(ofType: WikiDescriptionViewController.self)
     vc.view.isHidden = true
     vc.delegate = interactor
     return vc
-  } ()
+  }()
 
-  lazy var editBookmarkViewController: PlacePageEditBookmarkOrTrackViewController = {
+  private lazy var editBookmarkViewController: PlacePageEditBookmarkOrTrackViewController = {
     let vc = storyboard.instantiateViewController(ofType: PlacePageEditBookmarkOrTrackViewController.self)
     vc.view.isHidden = true
     vc.delegate = interactor
     return vc
-  } ()
+  }()
 
-  lazy var infoViewController: PlacePageInfoViewController = {
+  private lazy var infoViewController: PlacePageInfoViewController = {
     let vc = storyboard.instantiateViewController(ofType: PlacePageInfoViewController.self)
     vc.placePageInfoData = placePageData.infoData
     vc.delegate = interactor
     return vc
-  } ()
+  }()
 
-  lazy var buttonsViewController: PlacePageButtonsViewController = {
+  private lazy var buttonsViewController: PlacePageButtonsViewController = {
     let vc = storyboard.instantiateViewController(ofType: PlacePageButtonsViewController.self)
     vc.buttonsData = placePageData.buttonsData!
     vc.delegate = interactor
     return vc
-  } ()
+  }()
 
-  lazy var actionBarViewController: ActionBarViewController = {
+  private lazy var actionBarViewController: ActionBarViewController = {
     let vc = storyboard.instantiateViewController(ofType: ActionBarViewController.self)
     vc.placePageData = placePageData
     vc.canAddStop = MWMRouter.canAddIntermediatePoint()
     vc.isRoutePlanning = MWMNavigationDashboardManager.shared().state != .hidden
     vc.delegate = interactor
     return vc
-  } ()
+  }()
 
-  lazy var placePageNavigationViewController: PlacePageHeaderViewController = {
+  private lazy var placePageNavigationViewController: PlacePageHeaderViewController = {
     return PlacePageHeaderBuilder.build(data: placePageData, delegate: interactor, headerType: .fixed)
-  } ()
+  }()
 
   init(interactor: PlacePageInteractor, storyboard: UIStoryboard, data: PlacePageData) {
     self.interactor = interactor
@@ -163,7 +163,6 @@ class PlacePageCommonLayout: NSObject, IPlacePageLayout {
   }
 }
 
-
 // MARK: - PlacePageData async callbacks for loaders
 
 extension PlacePageCommonLayout {

iphone/Maps/UI/PlacePage/PlacePageLayout/Layouts/PlacePageTrackLayout.swift

@@ -17,25 +17,25 @@ class PlacePageTrackLayout: IPlacePageLayout {
     placePageNavigationViewController
   }
 
-  lazy var headerViewControllers: [UIViewController] = {
+  var headerViewControllers: [UIViewController] {
     [headerViewController, previewViewController]
-  }()
+  }
 
   lazy var headerViewController: PlacePageHeaderViewController = {
     PlacePageHeaderBuilder.build(data: placePageData, delegate: interactor, headerType: .flexible)
   }()
 
-  lazy var previewViewController: PlacePagePreviewViewController = {
+  private lazy var previewViewController: PlacePagePreviewViewController = {
     let vc = storyboard.instantiateViewController(ofType: PlacePagePreviewViewController.self)
     vc.placePagePreviewData = placePageData.previewData
     return vc
   }()
 
-  lazy var placePageNavigationViewController: PlacePageHeaderViewController = {
+  private lazy var placePageNavigationViewController: PlacePageHeaderViewController = {
     return PlacePageHeaderBuilder.build(data: placePageData, delegate: interactor, headerType: .fixed)
   }()
 
-  lazy var editTrackViewController: PlacePageEditBookmarkOrTrackViewController = {
+  private lazy var editTrackViewController: PlacePageEditBookmarkOrTrackViewController = {
     let vc = storyboard.instantiateViewController(ofType: PlacePageEditBookmarkOrTrackViewController.self)
     vc.view.isHidden = true
     vc.delegate = interactor
@@ -49,7 +49,7 @@ class PlacePageTrackLayout: IPlacePageLayout {
     return ElevationProfileBuilder.build(trackData: trackData, delegate: interactor)
   }()
 
-  lazy var actionBarViewController: ActionBarViewController = {
+  private lazy var actionBarViewController: ActionBarViewController = {
     let vc = storyboard.instantiateViewController(ofType: ActionBarViewController.self)
     vc.placePageData = placePageData
     vc.canAddStop = MWMRouter.canAddIntermediatePoint()

iphone/Maps/UI/PlacePage/PlacePageLayout/Layouts/PlacePageTrackRecordingLayout.swift

@@ -5,7 +5,7 @@ final class PlacePageTrackRecordingLayout: IPlacePageLayout {
   weak var presenter: PlacePagePresenterProtocol?
 
   lazy var bodyViewControllers: [UIViewController] = {
-    return configureViewControllers()
+    configureViewControllers()
   }()
 
   var actionBar: ActionBarViewController? {
@@ -16,19 +16,19 @@ final class PlacePageTrackRecordingLayout: IPlacePageLayout {
     placePageNavigationViewController
   }
 
-  lazy var headerViewControllers: [UIViewController] = {
+  var headerViewControllers: [UIViewController] {
     [headerViewController]
-  }()
+  }
 
   lazy var headerViewController: PlacePageHeaderViewController = {
-    return PlacePageHeaderBuilder.build(data: placePageData, delegate: interactor, headerType: .flexible)
+    PlacePageHeaderBuilder.build(data: placePageData, delegate: interactor, headerType: .flexible)
   }()
 
-  lazy var placePageNavigationViewController: PlacePageHeaderViewController = {
-    return PlacePageHeaderBuilder.build(data: placePageData, delegate: interactor, headerType: .fixed)
+  private lazy var placePageNavigationViewController: PlacePageHeaderViewController = {
+    PlacePageHeaderBuilder.build(data: placePageData, delegate: interactor, headerType: .fixed)
   }()
 
-  lazy var elevationProfileViewController: ElevationProfileViewController? = {
+  private lazy var elevationProfileViewController: ElevationProfileViewController? = {
     guard let trackData = placePageData.trackData else {
       return nil
     }
@@ -36,7 +36,7 @@ final class PlacePageTrackRecordingLayout: IPlacePageLayout {
                                          delegate: interactor)
   }()
 
-  lazy var actionBarViewController: ActionBarViewController = {
+  private lazy var actionBarViewController: ActionBarViewController = {
     let vc = storyboard.instantiateViewController(ofType: ActionBarViewController.self)
     vc.placePageData = placePageData
     vc.canAddStop = MWMRouter.canAddIntermediatePoint()

iphone/Maps/UI/PlacePage/PlacePageViewController.swift

@@ -1,5 +1,5 @@
 protocol PlacePageViewProtocol: AnyObject {
-  var interactor: PlacePageInteractorProtocol! { get set }
+  var interactor: PlacePageInteractorProtocol? { get set }
 
   func setLayout(_ layout: IPlacePageLayout)
   func closeAnimated(completion: (() -> Void)?)
@@ -35,7 +35,7 @@ final class PlacePageScrollView: UIScrollView {
     stackView.distribution = .fill
     return stackView
   }()
-  var interactor: PlacePageInteractorProtocol!
+  var interactor: PlacePageInteractorProtocol?
   var beginDragging = false
   var rootViewController: MapViewController {
     MapViewController.shared()!
@@ -220,8 +220,13 @@ final class PlacePageScrollView: UIScrollView {
   }
 
   private func cleanupLayout() {
-    layout?.actionBar?.view.removeFromSuperview()
-    layout?.navigationBar?.view.removeFromSuperview()
+    guard let layout else { return }
+    let childViewControllers = [layout.actionBar, layout.navigationBar] + layout.headerViewControllers + layout.bodyViewControllers
+    childViewControllers.forEach {
+      $0?.willMove(toParent: nil)
+      $0?.view.removeFromSuperview()
+      $0?.removeFromParent()
+    }
     headerStackView.arrangedSubviews.forEach { $0.removeFromSuperview() }
     stackView.arrangedSubviews.forEach { $0.removeFromSuperview() }
   }
@@ -293,7 +298,7 @@ final class PlacePageScrollView: UIScrollView {
 
   private func updateTopBound(_ bound: CGFloat, duration: TimeInterval) {
     alternativeSizeClass(iPhone: {
-      interactor.updateTopBound(bound, duration: duration)
+      interactor?.updateTopBound(bound, duration: duration)
     }, iPad: {})
   }
 }