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TelegramUI/MapInputControllerNode.swift

@@ -0,0 +1,67 @@
+import Foundation
+import Display
+import AsyncDisplayKit
+import MapKit
+
+private var previousUserLocation: CLLocation?
+
+final class MapInputControllerNode: ASDisplayNode, MKMapViewDelegate {
+    var dismiss: () -> Void = { }
+    
+    let locationManager: CLLocationManager
+    let mapView: MKMapView
+    
+    override init() {
+        self.locationManager = CLLocationManager()
+        self.mapView = MKMapView()
+        
+        super.init(viewBlock: {
+            return UITracingLayerView()
+        }, didLoad: nil)
+        
+        self.backgroundColor = UIColor.white
+        
+        self.mapView.delegate = self
+        self.view.addSubview(self.mapView)
+        
+        if let location = previousUserLocation {
+            let coordinateRegion = MKCoordinateRegionMakeWithDistance(location.coordinate, 1000.0 * 2.0, 1000.0 * 2.0)
+            mapView.setRegion(coordinateRegion, animated: true)
+        }
+    }
+    
+    func containerLayoutUpdated(_ layout: ContainerViewLayout, navigationBarHeight: CGFloat, transition: ContainedViewLayoutTransition) {
+        self.mapView.frame = CGRect(origin: CGPoint(), size: layout.size)
+    }
+    
+    func animateIn() {
+        self.checkLocationAuthorizationStatus()
+        
+        self.layer.animatePosition(from: CGPoint(x: self.layer.position.x, y: self.layer.position.y + self.layer.bounds.size.height), to: self.layer.position, duration: 0.5, timingFunction: kCAMediaTimingFunctionSpring)
+    }
+    
+    func animateOut() {
+        self.layer.animatePosition(from: self.layer.position, to: CGPoint(x: self.layer.position.x, y: self.layer.position.y + self.layer.bounds.size.height), duration: 0.2, timingFunction: kCAMediaTimingFunctionEaseInEaseOut, removeOnCompletion: false, completion: { [weak self] _ in
+            if let strongSelf = self {
+                strongSelf.dismiss()
+            }
+        })
+    }
+    
+    private func checkLocationAuthorizationStatus() {
+        if CLLocationManager.authorizationStatus() == .authorizedWhenInUse {
+            mapView.showsUserLocation = true
+        } else {
+            locationManager.requestWhenInUseAuthorization()
+        }
+    }
+    
+    func mapView(_ mapView: MKMapView, didUpdate userLocation: MKUserLocation) {
+        if let location = userLocation.location {
+            previousUserLocation = location
+            
+            let coordinateRegion = MKCoordinateRegionMakeWithDistance(location.coordinate, 1000.0 * 2.0, 1000.0 * 2.0)
+            mapView.setRegion(coordinateRegion, animated: true)
+        }
+    }
+}