Repo created

iphone/Maps/Classes/CarPlay/CarPlayWindowScaleAdjuster.swift

@@ -0,0 +1,51 @@
+import Foundation
+import UIKit
+
+enum CarPlayWindowScaleAdjuster {
+
+  static func updateAppearance(
+    fromWindow sourceWindow: UIWindow,
+    toWindow destinationWindow: UIWindow,
+    isCarplayActivated: Bool
+  ) {
+
+    let sourceContentScale = sourceWindow.screen.scale;
+    let destinationContentScale = destinationWindow.screen.scale;
+
+    if abs(sourceContentScale - destinationContentScale) > 0.1 {
+      if isCarplayActivated {
+        updateVisualScale(to: destinationContentScale)
+      } else {
+        updateVisualScaleToMain()
+      }
+    }
+  }
+
+  private static func updateVisualScale(to scale: CGFloat) {
+    if isGraphicContextInitialized {
+      mapViewController?.mapView.updateVisualScale(to: scale)
+    } else {
+      DispatchQueue.main.async {
+        updateVisualScale(to: scale)
+      }
+    }
+  }
+
+  private static func updateVisualScaleToMain() {
+    if isGraphicContextInitialized {
+      mapViewController?.mapView.updateVisualScaleToMain()
+    } else {
+      DispatchQueue.main.async {
+        updateVisualScaleToMain()
+      }
+    }
+  }
+
+  private static var isGraphicContextInitialized: Bool {
+    return mapViewController?.mapView.graphicContextInitialized ?? false
+  }
+
+  private static var mapViewController: MapViewController? {
+    return MapViewController.shared()
+  }
+}