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808import Foundation
import GoogleMaps
import Capacitor
import GoogleMapsUtils
public struct LatLng: Codable {
let lat: Double
let lng: Double
}
class GMViewController: UIViewController {
var mapViewBounds: [String: Double]!
var GMapView: GMSMapView!
var cameraPosition: [String: Double]!
var minimumClusterSize: Int?
var mapId: String?
var onViewDidLoad: (() -> Void)?
private var clusterManager: GMUClusterManager?
var clusteringEnabled: Bool {
return clusterManager != nil
}
override func viewDidLoad() {
super.viewDidLoad()
let camera = GMSCameraPosition.camera(withLatitude: cameraPosition["latitude"] ?? 0, longitude: cameraPosition["longitude"] ?? 0, zoom: Float(cameraPosition["zoom"] ?? 12))
let frame = CGRect(x: mapViewBounds["x"] ?? 0, y: mapViewBounds["y"] ?? 0, width: mapViewBounds["width"] ?? 0, height: mapViewBounds["height"] ?? 0)
if let id = mapId {
let gmsId = GMSMapID(identifier: id)
self.GMapView = GMSMapView(frame: frame, mapID: gmsId, camera: camera)
} else {
self.GMapView = GMSMapView(frame: frame, camera: camera)
}
self.view = GMapView
self.onViewDidLoad?()
}
func initClusterManager(_ minClusterSize: Int?) {
let iconGenerator = GMUDefaultClusterIconGenerator()
let algorithm = GMUNonHierarchicalDistanceBasedAlgorithm()
let renderer = GMUDefaultClusterRenderer(mapView: self.GMapView, clusterIconGenerator: iconGenerator)
self.minimumClusterSize = minClusterSize
if let minClusterSize = minClusterSize {
renderer.minimumClusterSize = UInt(minClusterSize)
}
self.clusterManager = GMUClusterManager(map: self.GMapView, algorithm: algorithm, renderer: renderer)
}
func destroyClusterManager() {
self.clusterManager = nil
}
func addMarkersToCluster(markers: [GMSMarker]) {
if let clusterManager = clusterManager {
clusterManager.add(markers)
clusterManager.cluster()
}
}
func removeMarkersFromCluster(markers: [GMSMarker]) {
if let clusterManager = clusterManager {
markers.forEach { marker in
clusterManager.remove(marker)
}
clusterManager.cluster()
}
}
}
// swiftlint:disable type_body_length
public class Map {
var id: String
var config: GoogleMapConfig
var mapViewController: GMViewController
var targetViewController: UIView?
var markers = [Int: GMSMarker]()
var tileOverlays = [Int: GMSURLTileLayer]()
var polygons = [Int: GMSPolygon]()
var circles = [Int: GMSCircle]()
var polylines = [Int: GMSPolyline]()
var markerIcons = [String: UIImage]()
// swiftlint:disable identifier_name
public static let MAP_TAG = 99999
// swiftlint:enable identifier_name
// swiftlint:disable weak_delegate
private var delegate: CapacitorGoogleMapsPlugin
init(id: String, config: GoogleMapConfig, delegate: CapacitorGoogleMapsPlugin) {
self.id = id
self.config = config
self.delegate = delegate
self.mapViewController = GMViewController()
self.mapViewController.mapId = config.mapId
self.mapViewController.onViewDidLoad = { [weak self] in
self?.finishMapConfiguration()
}
self.render()
}
func render() {
DispatchQueue.main.async {
self.mapViewController.mapViewBounds = [
"width": self.config.width,
"height": self.config.height,
"x": self.config.x,
"y": self.config.y
]
self.mapViewController.cameraPosition = [
"latitude": self.config.center.lat,
"longitude": self.config.center.lng,
"zoom": self.config.zoom
]
self.targetViewController = self.getTargetContainer(refWidth: self.config.width, refHeight: self.config.height)
if let target = self.targetViewController {
target.tag = Map.MAP_TAG
target.removeAllSubview()
self.mapViewController.view.frame = target.bounds
target.addSubview(self.mapViewController.view)
}
}
}
func finishMapConfiguration() {
DispatchQueue.main.async {
self.mapViewController.GMapView.delegate = self.delegate
if let styles = self.config.styles {
do {
self.mapViewController.GMapView.mapStyle = try GMSMapStyle(jsonString: styles)
} catch {
CAPLog.print("Invalid Google Maps styles")
}
}
let minZoom = self.config.minZoom.map { Float($0) } ?? self.mapViewController.GMapView.minZoom
let maxZoom = self.config.maxZoom.map { Float($0) } ?? self.mapViewController.GMapView.maxZoom
self.mapViewController.GMapView.setMinZoom(minZoom, maxZoom: maxZoom)
if let mapTypeId = self.config.mapTypeId {
switch mapTypeId {
case "hybrid":
self.mapViewController.GMapView.mapType = .hybrid
case "roadmap":
self.mapViewController.GMapView.mapType = .normal
case "satellite":
self.mapViewController.GMapView.mapType = .satellite
case "terrain":
self.mapViewController.GMapView.mapType = .terrain
default:
break
}
}
if let restriction = self.config.restriction {
self.mapViewController.GMapView.cameraTargetBounds = restriction.latLngBounds
}
if let heading = self.config.heading {
self.mapViewController.GMapView.animate(toBearing: heading)
}
self.delegate.notifyListeners("onMapReady", data: [
"mapId": self.id
])
}
}
func updateRender(mapBounds: CGRect) {
DispatchQueue.main.sync {
let newWidth = round(Double(mapBounds.width))
let newHeight = round(Double(mapBounds.height))
let isWidthEqual = round(Double(self.mapViewController.view.bounds.width)) == newWidth
let isHeightEqual = round(Double(self.mapViewController.view.bounds.height)) == newHeight
if !isWidthEqual || !isHeightEqual {
CATransaction.begin()
CATransaction.setDisableActions(true)
self.mapViewController.view.frame.size.width = newWidth
self.mapViewController.view.frame.size.height = newHeight
CATransaction.commit()
}
}
}
func rebindTargetContainer(mapBounds: CGRect) {
DispatchQueue.main.sync {
if let target = self.getTargetContainer(refWidth: round(Double(mapBounds.width)), refHeight: round(Double(mapBounds.height))) {
self.targetViewController = target
target.tag = Map.MAP_TAG
target.removeAllSubview()
CATransaction.begin()
CATransaction.setDisableActions(true)
self.mapViewController.view.frame.size.width = mapBounds.width
self.mapViewController.view.frame.size.height = mapBounds.height
CATransaction.commit()
target.addSubview(self.mapViewController.view)
}
}
}
private func getTargetContainer(refWidth: Double, refHeight: Double) -> UIView? {
if let bridge = self.delegate.bridge {
for item in bridge.webView!.getAllSubViews() {
let isScrollView = item.isKind(of: NSClassFromString("WKChildScrollView")!) || item.isKind(of: NSClassFromString("WKScrollView")!)
let isBridgeScrollView = item.isEqual(bridge.webView?.scrollView)
if isScrollView && !isBridgeScrollView {
(item as? UIScrollView)?.isScrollEnabled = true
let height = Double((item as? UIScrollView)?.contentSize.height ?? 0)
let width = Double((item as? UIScrollView)?.contentSize.width ?? 0)
let actualHeightFloor = floor(height / 2)
let actualHeightCeil = ceil(height / 2)
let isWidthEqual = width == refWidth
let isHeightEqual = actualHeightFloor == refHeight || actualHeightCeil == refHeight
if isWidthEqual && isHeightEqual && item.tag < self.targetViewController?.tag ?? Map.MAP_TAG {
return item
}
}
}
}
return nil
}
func destroy() {
DispatchQueue.main.async {
self.mapViewController.GMapView = nil
self.targetViewController?.tag = 0
self.mapViewController.view = nil
self.enableTouch()
}
}
func enableTouch() {
DispatchQueue.main.async {
if let target = self.targetViewController, let itemIndex = WKWebView.disabledTargets.firstIndex(of: target) {
WKWebView.disabledTargets.remove(at: itemIndex)
}
}
}
func addTileOverlay(tileOverlay: TileOverlay) throws -> Int {
var tileOverlayHash = 0
DispatchQueue.main.sync {
let urlConstructor: GMSTileURLConstructor = { x, y, zoom in
URL(string: tileOverlay.url
.replacingOccurrences(of: "{x}", with: "\(x)")
.replacingOccurrences(of: "{y}", with: "\(y)")
.replacingOccurrences(of: "{z}", with: "\(zoom)")
)
}
let layer = GMSURLTileLayer(urlConstructor: urlConstructor)
layer.opacity = tileOverlay.opacity ?? 1
layer.zIndex = tileOverlay.zIndex
layer.map = self.mapViewController.GMapView
self.tileOverlays[layer.hash.hashValue] = layer
tileOverlayHash = layer.hash.hashValue
}
return tileOverlayHash
}
func removeTileOverlay(id: Int) throws {
if let tileOverlay = self.tileOverlays[id] {
DispatchQueue.main.async {
tileOverlay.map = nil
self.tileOverlays.removeValue(forKey: id)
}
} else {
throw GoogleMapErrors.tileOverlayNotFound
}
}
func disableTouch() {
DispatchQueue.main.async {
if let target = self.targetViewController, !WKWebView.disabledTargets.contains(target) {
WKWebView.disabledTargets.append(target)
}
}
}
func addMarker(marker: Marker) throws -> Int {
var markerHash = 0
DispatchQueue.main.sync {
let newMarker = self.buildMarker(marker: marker)
if self.mapViewController.clusteringEnabled {
self.mapViewController.addMarkersToCluster(markers: [newMarker])
} else {
newMarker.map = self.mapViewController.GMapView
}
self.markers[newMarker.hash.hashValue] = newMarker
markerHash = newMarker.hash.hashValue
}
return markerHash
}
func addMarkers(markers: [Marker]) throws -> [Int] {
var markerHashes: [Int] = []
DispatchQueue.main.sync {
var googleMapsMarkers: [GMSMarker] = []
markers.forEach { marker in
let newMarker = self.buildMarker(marker: marker)
if self.mapViewController.clusteringEnabled {
googleMapsMarkers.append(newMarker)
} else {
newMarker.map = self.mapViewController.GMapView
}
self.markers[newMarker.hash.hashValue] = newMarker
markerHashes.append(newMarker.hash.hashValue)
}
if self.mapViewController.clusteringEnabled {
self.mapViewController.addMarkersToCluster(markers: googleMapsMarkers)
}
}
return markerHashes
}
func addPolygons(polygons: [Polygon]) throws -> [Int] {
var polygonHashes: [Int] = []
DispatchQueue.main.sync {
polygons.forEach { polygon in
let newPolygon = self.buildPolygon(polygon: polygon)
newPolygon.map = self.mapViewController.GMapView
self.polygons[newPolygon.hash.hashValue] = newPolygon
polygonHashes.append(newPolygon.hash.hashValue)
}
}
return polygonHashes
}
func addCircles(circles: [Circle]) throws -> [Int] {
var circleHashes: [Int] = []
DispatchQueue.main.sync {
circles.forEach { circle in
let newCircle = self.buildCircle(circle: circle)
newCircle.map = self.mapViewController.GMapView
self.circles[newCircle.hash.hashValue] = newCircle
circleHashes.append(newCircle.hash.hashValue)
}
}
return circleHashes
}
func addPolylines(lines: [Polyline]) throws -> [Int] {
var polylineHashes: [Int] = []
DispatchQueue.main.sync {
lines.forEach { line in
let newLine = self.buildPolyline(line: line)
newLine.map = self.mapViewController.GMapView
self.polylines[newLine.hash.hashValue] = newLine
polylineHashes.append(newLine.hash.hashValue)
}
}
return polylineHashes
}
func enableClustering(_ minClusterSize: Int?) {
if !self.mapViewController.clusteringEnabled {
DispatchQueue.main.sync {
self.mapViewController.initClusterManager(minClusterSize)
// add existing markers to the cluster
if !self.markers.isEmpty {
var existingMarkers: [GMSMarker] = []
for (_, marker) in self.markers {
marker.map = nil
existingMarkers.append(marker)
}
self.mapViewController.addMarkersToCluster(markers: existingMarkers)
}
}
} else if self.mapViewController.minimumClusterSize != minClusterSize {
self.mapViewController.destroyClusterManager()
enableClustering(minClusterSize)
}
}
func disableClustering() {
DispatchQueue.main.sync {
self.mapViewController.destroyClusterManager()
// add existing markers back to the map
if !self.markers.isEmpty {
for (_, marker) in self.markers {
marker.map = self.mapViewController.GMapView
}
}
}
}
func removeMarker(id: Int) throws {
if let marker = self.markers[id] {
DispatchQueue.main.async {
if self.mapViewController.clusteringEnabled {
self.mapViewController.removeMarkersFromCluster(markers: [marker])
}
marker.map = nil
self.markers.removeValue(forKey: id)
}
} else {
throw GoogleMapErrors.markerNotFound
}
}
func removePolygons(ids: [Int]) throws {
DispatchQueue.main.sync {
ids.forEach { id in
if let polygon = self.polygons[id] {
polygon.map = nil
self.polygons.removeValue(forKey: id)
}
}
}
}
func removeCircles(ids: [Int]) throws {
DispatchQueue.main.sync {
ids.forEach { id in
if let circle = self.circles[id] {
circle.map = nil
self.circles.removeValue(forKey: id)
}
}
}
}
func removePolylines(ids: [Int]) throws {
DispatchQueue.main.sync {
ids.forEach { id in
if let line = self.polylines[id] {
line.map = nil
self.polylines.removeValue(forKey: id)
}
}
}
}
func setCamera(config: GoogleMapCameraConfig) throws {
let currentCamera = self.mapViewController.GMapView.camera
let lat = config.coordinate?.lat ?? currentCamera.target.latitude
let lng = config.coordinate?.lng ?? currentCamera.target.longitude
let zoom = config.zoom ?? currentCamera.zoom
let bearing = config.bearing ?? Double(currentCamera.bearing)
let angle = config.angle ?? currentCamera.viewingAngle
let animate = config.animate ?? false
DispatchQueue.main.sync {
let newCamera = GMSCameraPosition(latitude: lat, longitude: lng, zoom: zoom, bearing: bearing, viewingAngle: angle)
if animate {
self.mapViewController.GMapView.animate(to: newCamera)
} else {
self.mapViewController.GMapView.camera = newCamera
}
}
}
func getMapType() -> GMSMapViewType {
return self.mapViewController.GMapView.mapType
}
func setMapType(mapType: GMSMapViewType) throws {
DispatchQueue.main.sync {
self.mapViewController.GMapView.mapType = mapType
}
}
func enableIndoorMaps(enabled: Bool) throws {
DispatchQueue.main.sync {
self.mapViewController.GMapView.isIndoorEnabled = enabled
}
}
func enableTrafficLayer(enabled: Bool) throws {
DispatchQueue.main.sync {
self.mapViewController.GMapView.isTrafficEnabled = enabled
}
}
func enableAccessibilityElements(enabled: Bool) throws {
DispatchQueue.main.sync {
self.mapViewController.GMapView.accessibilityElementsHidden = enabled
}
}
func enableCurrentLocation(enabled: Bool) throws {
DispatchQueue.main.sync {
self.mapViewController.GMapView.isMyLocationEnabled = enabled
}
}
func setPadding(padding: GoogleMapPadding) throws {
DispatchQueue.main.sync {
let mapInsets = UIEdgeInsets(top: CGFloat(padding.top), left: CGFloat(padding.left), bottom: CGFloat(padding.bottom), right: CGFloat(padding.right))
self.mapViewController.GMapView.padding = mapInsets
}
}
func removeMarkers(ids: [Int]) throws {
DispatchQueue.main.sync {
var markers: [GMSMarker] = []
ids.forEach { id in
if let marker = self.markers[id] {
marker.map = nil
self.markers.removeValue(forKey: id)
markers.append(marker)
}
}
if self.mapViewController.clusteringEnabled {
self.mapViewController.removeMarkersFromCluster(markers: markers)
}
}
}
func getMapLatLngBounds() -> GMSCoordinateBounds? {
return GMSCoordinateBounds(region: self.mapViewController.GMapView.projection.visibleRegion())
}
func fitBounds(bounds: GMSCoordinateBounds, padding: CGFloat) {
DispatchQueue.main.sync {
let cameraUpdate = GMSCameraUpdate.fit(bounds, withPadding: padding)
self.mapViewController.GMapView.animate(with: cameraUpdate)
}
}
private func getFrameOverflowBounds(frame: CGRect, mapBounds: CGRect) -> [CGRect] {
var intersections: [CGRect] = []
// get top overflow
if mapBounds.origin.y < frame.origin.y {
let height = frame.origin.y - mapBounds.origin.y
let width = mapBounds.width
intersections.append(CGRect(x: 0, y: 0, width: width, height: height))
}
// get bottom overflow
if (mapBounds.origin.y + mapBounds.height) > (frame.origin.y + frame.height) {
let height = (mapBounds.origin.y + mapBounds.height) - (frame.origin.y + frame.height)
let width = mapBounds.width
intersections.append(CGRect(x: 0, y: mapBounds.height, width: width, height: height))
}
return intersections
}
private func buildCircle(circle: Circle) -> GMSCircle {
let newCircle = GMSCircle()
newCircle.title = circle.title
newCircle.strokeColor = circle.strokeColor
newCircle.strokeWidth = circle.strokeWidth
newCircle.fillColor = circle.fillColor
newCircle.position = CLLocationCoordinate2D(latitude: circle.center.lat, longitude: circle.center.lng)
newCircle.radius = CLLocationDistance(circle.radius)
newCircle.isTappable = circle.tappable ?? false
newCircle.zIndex = circle.zIndex
newCircle.userData = circle.tag
return newCircle
}
private func buildPolygon(polygon: Polygon) -> GMSPolygon {
let newPolygon = GMSPolygon()
newPolygon.title = polygon.title
newPolygon.strokeColor = polygon.strokeColor
newPolygon.strokeWidth = polygon.strokeWidth
newPolygon.fillColor = polygon.fillColor
newPolygon.isTappable = polygon.tappable ?? false
newPolygon.geodesic = polygon.geodesic ?? false
newPolygon.zIndex = polygon.zIndex
newPolygon.userData = polygon.tag
var shapeIndex = 0
let outerShape = GMSMutablePath()
var holes: [GMSMutablePath] = []
polygon.shapes.forEach { shape in
if shapeIndex == 0 {
shape.forEach { coord in
outerShape.add(CLLocationCoordinate2D(latitude: coord.lat, longitude: coord.lng))
}
} else {
let holeShape = GMSMutablePath()
shape.forEach { coord in
holeShape.add(CLLocationCoordinate2D(latitude: coord.lat, longitude: coord.lng))
}
holes.append(holeShape)
}
shapeIndex += 1
}
newPolygon.path = outerShape
newPolygon.holes = holes
return newPolygon
}
private func buildPolyline(line: Polyline) -> GMSPolyline {
let newPolyline = GMSPolyline()
newPolyline.title = line.title
newPolyline.strokeColor = line.strokeColor
newPolyline.strokeWidth = line.strokeWidth
newPolyline.isTappable = line.tappable ?? false
newPolyline.geodesic = line.geodesic ?? false
newPolyline.zIndex = line.zIndex
newPolyline.userData = line.tag
let path = GMSMutablePath()
line.path.forEach { coord in
path.add(CLLocationCoordinate2D(latitude: coord.lat, longitude: coord.lng))
}
newPolyline.path = path
if line.styleSpans.count > 0 {
var spans: [GMSStyleSpan] = []
line.styleSpans.forEach { span in
if let segments = span.segments {
spans.append(GMSStyleSpan(color: span.color, segments: segments))
} else {
spans.append(GMSStyleSpan(color: span.color))
}
}
newPolyline.spans = spans
}
return newPolyline
}
private func buildMarker(marker: Marker) -> GMSMarker {
let newMarker = GMSMarker()
newMarker.position = CLLocationCoordinate2D(latitude: marker.coordinate.lat, longitude: marker.coordinate.lng)
newMarker.title = marker.title
newMarker.snippet = marker.snippet
newMarker.isFlat = marker.isFlat ?? false
newMarker.opacity = marker.opacity ?? 1
newMarker.isDraggable = marker.draggable ?? false
newMarker.zIndex = marker.zIndex
if let iconAnchor = marker.iconAnchor {
newMarker.groundAnchor = iconAnchor
}
// cache and reuse marker icon uiimages
if let iconUrl = marker.iconUrl {
if let iconImage = self.markerIcons[iconUrl] {
newMarker.icon = getResizedIcon(iconImage, marker)
} else {
if iconUrl.starts(with: "https:") {
if let url = URL(string: iconUrl) {
URLSession.shared.dataTask(with: url) { (data, _, _) in
DispatchQueue.main.async {
if let data = data, let iconImage = UIImage(data: data) {
self.markerIcons[iconUrl] = iconImage
newMarker.icon = getResizedIcon(iconImage, marker)
}
}
}.resume()
}
} else if let iconImage = UIImage(named: "public/\(iconUrl)") {
self.markerIcons[iconUrl] = iconImage
newMarker.icon = getResizedIcon(iconImage, marker)
} else {
var detailedMessage = ""
if iconUrl.hasSuffix(".svg") {
detailedMessage = "SVG not supported."
}
print("CapacitorGoogleMaps Warning: could not load image '\(iconUrl)'. \(detailedMessage) Using default marker icon.")
}
}
} else {
if let color = marker.color {
newMarker.icon = GMSMarker.markerImage(with: color)
}
}
return newMarker
}
}
private func getResizedIcon(_ iconImage: UIImage, _ marker: Marker) -> UIImage? {
if let iconSize = marker.iconSize {
return iconImage.resizeImageTo(size: iconSize)
} else {
return iconImage
}
}
extension WKWebView {
static var disabledTargets: [UIView] = []
override open func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
var hitView = super.hitTest(point, with: event)
if let tempHitView = hitView, WKWebView.disabledTargets.contains(tempHitView) {
return nil
}
if let typeClass = NSClassFromString("WKChildScrollView"), let tempHitView = hitView, tempHitView.isKind(of: typeClass) {
for item in tempHitView.subviews.reversed() {
let convertPoint = item.convert(point, from: self)
if let hitTestView = item.hitTest(convertPoint, with: event) {
hitView = hitTestView
break
}
}
}
return hitView
}
}
extension UIView {
private static var allSubviews: [UIView] = []
private func viewArray(root: UIView) -> [UIView] {
var index = root.tag
for view in root.subviews {
if view.tag == Map.MAP_TAG {
// view already in use as in map
continue
}
// tag the index depth of the uiview
view.tag = index
if view.isKind(of: UIView.self) {
UIView.allSubviews.append(view)
}
_ = viewArray(root: view)
index += 1
}
return UIView.allSubviews
}
fileprivate func getAllSubViews() -> [UIView] {
UIView.allSubviews = []
return viewArray(root: self).reversed()
}
fileprivate func removeAllSubview() {
subviews.forEach {
$0.removeFromSuperview()
}
}
}
extension UIImage {
func resizeImageTo(size: CGSize) -> UIImage? {
UIGraphicsBeginImageContextWithOptions(size, false, 0.0)
self.draw(in: CGRect(origin: CGPoint.zero, size: size))
let resizedImage = UIGraphicsGetImageFromCurrentImageContext()!
UIGraphicsEndImageContext()
return resizedImage
}
}