| // Copyright 2018 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #import "GoogleMapController.h" |
| #import "JsonConversions.h" |
| |
| #pragma mark - Conversion of JSON-like values sent via platform channels. Forward declarations. |
| |
| static NSDictionary* PositionToJson(GMSCameraPosition* position); |
| static NSArray* LocationToJson(CLLocationCoordinate2D position); |
| static GMSCameraPosition* ToOptionalCameraPosition(NSDictionary* json); |
| static GMSCoordinateBounds* ToOptionalBounds(NSArray* json); |
| static GMSCameraUpdate* ToCameraUpdate(NSArray* data); |
| static NSDictionary* GMSCoordinateBoundsToJson(GMSCoordinateBounds* bounds); |
| static void InterpretMapOptions(NSDictionary* data, id<FLTGoogleMapOptionsSink> sink); |
| static double ToDouble(NSNumber* data) { return [FLTGoogleMapJsonConversions toDouble:data]; } |
| |
| @implementation FLTGoogleMapFactory { |
| NSObject<FlutterPluginRegistrar>* _registrar; |
| } |
| |
| - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar>*)registrar { |
| self = [super init]; |
| if (self) { |
| _registrar = registrar; |
| } |
| return self; |
| } |
| |
| - (NSObject<FlutterMessageCodec>*)createArgsCodec { |
| return [FlutterStandardMessageCodec sharedInstance]; |
| } |
| |
| - (NSObject<FlutterPlatformView>*)createWithFrame:(CGRect)frame |
| viewIdentifier:(int64_t)viewId |
| arguments:(id _Nullable)args { |
| return [[FLTGoogleMapController alloc] initWithFrame:frame |
| viewIdentifier:viewId |
| arguments:args |
| registrar:_registrar]; |
| } |
| @end |
| |
| @implementation FLTGoogleMapController { |
| GMSMapView* _mapView; |
| int64_t _viewId; |
| FlutterMethodChannel* _channel; |
| BOOL _trackCameraPosition; |
| NSObject<FlutterPluginRegistrar>* _registrar; |
| // Used for the temporary workaround for a bug that the camera is not properly positioned at |
| // initialization. https://github.com/flutter/flutter/issues/24806 |
| // TODO(cyanglaz): Remove this temporary fix once the Maps SDK issue is resolved. |
| // https://github.com/flutter/flutter/issues/27550 |
| BOOL _cameraDidInitialSetup; |
| FLTMarkersController* _markersController; |
| FLTPolylinesController* _polylinesController; |
| } |
| |
| - (instancetype)initWithFrame:(CGRect)frame |
| viewIdentifier:(int64_t)viewId |
| arguments:(id _Nullable)args |
| registrar:(NSObject<FlutterPluginRegistrar>*)registrar { |
| if ([super init]) { |
| _viewId = viewId; |
| |
| GMSCameraPosition* camera = ToOptionalCameraPosition(args[@"initialCameraPosition"]); |
| _mapView = [GMSMapView mapWithFrame:frame camera:camera]; |
| _mapView.accessibilityElementsHidden = NO; |
| _trackCameraPosition = NO; |
| InterpretMapOptions(args[@"options"], self); |
| NSString* channelName = |
| [NSString stringWithFormat:@"plugins.flutter.io/google_maps_%lld", viewId]; |
| _channel = [FlutterMethodChannel methodChannelWithName:channelName |
| binaryMessenger:registrar.messenger]; |
| __weak __typeof__(self) weakSelf = self; |
| [_channel setMethodCallHandler:^(FlutterMethodCall* call, FlutterResult result) { |
| if (weakSelf) { |
| [weakSelf onMethodCall:call result:result]; |
| } |
| }]; |
| _mapView.delegate = weakSelf; |
| _registrar = registrar; |
| _cameraDidInitialSetup = NO; |
| _markersController = [[FLTMarkersController alloc] init:_channel |
| mapView:_mapView |
| registrar:registrar]; |
| _polylinesController = [[FLTPolylinesController alloc] init:_channel |
| mapView:_mapView |
| registrar:registrar]; |
| id markersToAdd = args[@"markersToAdd"]; |
| if ([markersToAdd isKindOfClass:[NSArray class]]) { |
| [_markersController addMarkers:markersToAdd]; |
| } |
| id polylinesToAdd = args[@"polylinesToAdd"]; |
| if ([polylinesToAdd isKindOfClass:[NSArray class]]) { |
| [_polylinesController addPolylines:polylinesToAdd]; |
| } |
| } |
| return self; |
| } |
| |
| - (UIView*)view { |
| return _mapView; |
| } |
| |
| - (void)onMethodCall:(FlutterMethodCall*)call result:(FlutterResult)result { |
| if ([call.method isEqualToString:@"map#show"]) { |
| [self showAtX:ToDouble(call.arguments[@"x"]) Y:ToDouble(call.arguments[@"y"])]; |
| result(nil); |
| } else if ([call.method isEqualToString:@"map#hide"]) { |
| [self hide]; |
| result(nil); |
| } else if ([call.method isEqualToString:@"camera#animate"]) { |
| [self animateWithCameraUpdate:ToCameraUpdate(call.arguments[@"cameraUpdate"])]; |
| result(nil); |
| } else if ([call.method isEqualToString:@"camera#move"]) { |
| [self moveWithCameraUpdate:ToCameraUpdate(call.arguments[@"cameraUpdate"])]; |
| result(nil); |
| } else if ([call.method isEqualToString:@"map#update"]) { |
| InterpretMapOptions(call.arguments[@"options"], self); |
| result(PositionToJson([self cameraPosition])); |
| } else if ([call.method isEqualToString:@"map#getVisibleRegion"]) { |
| if (_mapView != nil) { |
| GMSVisibleRegion visibleRegion = _mapView.projection.visibleRegion; |
| GMSCoordinateBounds* bounds = [[GMSCoordinateBounds alloc] initWithRegion:visibleRegion]; |
| |
| result(GMSCoordinateBoundsToJson(bounds)); |
| } else { |
| result([FlutterError errorWithCode:@"GoogleMap uninitialized" |
| message:@"getVisibleRegion called prior to map initialization" |
| details:nil]); |
| } |
| } else if ([call.method isEqualToString:@"map#waitForMap"]) { |
| result(nil); |
| } else if ([call.method isEqualToString:@"markers#update"]) { |
| id markersToAdd = call.arguments[@"markersToAdd"]; |
| if ([markersToAdd isKindOfClass:[NSArray class]]) { |
| [_markersController addMarkers:markersToAdd]; |
| } |
| id markersToChange = call.arguments[@"markersToChange"]; |
| if ([markersToChange isKindOfClass:[NSArray class]]) { |
| [_markersController changeMarkers:markersToChange]; |
| } |
| id markerIdsToRemove = call.arguments[@"markerIdsToRemove"]; |
| if ([markerIdsToRemove isKindOfClass:[NSArray class]]) { |
| [_markersController removeMarkerIds:markerIdsToRemove]; |
| } |
| result(nil); |
| } else if ([call.method isEqualToString:@"polylines#update"]) { |
| id polylinesToAdd = call.arguments[@"polylinesToAdd"]; |
| if ([polylinesToAdd isKindOfClass:[NSArray class]]) { |
| [_polylinesController addPolylines:polylinesToAdd]; |
| } |
| id polylinesToChange = call.arguments[@"polylinesToChange"]; |
| if ([polylinesToChange isKindOfClass:[NSArray class]]) { |
| [_polylinesController changePolylines:polylinesToChange]; |
| } |
| id polylineIdsToRemove = call.arguments[@"polylineIdsToRemove"]; |
| if ([polylineIdsToRemove isKindOfClass:[NSArray class]]) { |
| [_polylinesController removePolylineIds:polylineIdsToRemove]; |
| } |
| result(nil); |
| } else if ([call.method isEqualToString:@"map#isCompassEnabled"]) { |
| NSNumber* isCompassEnabled = @(_mapView.settings.compassButton); |
| result(isCompassEnabled); |
| } else if ([call.method isEqualToString:@"map#getMinMaxZoomLevels"]) { |
| NSArray* zoomLevels = @[ @(_mapView.minZoom), @(_mapView.maxZoom) ]; |
| result(zoomLevels); |
| } else if ([call.method isEqualToString:@"map#isZoomGesturesEnabled"]) { |
| NSNumber* isZoomGesturesEnabled = @(_mapView.settings.zoomGestures); |
| result(isZoomGesturesEnabled); |
| } else if ([call.method isEqualToString:@"map#isTiltGesturesEnabled"]) { |
| NSNumber* isTiltGesturesEnabled = @(_mapView.settings.tiltGestures); |
| result(isTiltGesturesEnabled); |
| } else if ([call.method isEqualToString:@"map#isRotateGesturesEnabled"]) { |
| NSNumber* isRotateGesturesEnabled = @(_mapView.settings.rotateGestures); |
| result(isRotateGesturesEnabled); |
| } else if ([call.method isEqualToString:@"map#isScrollGesturesEnabled"]) { |
| NSNumber* isScrollGesturesEnabled = @(_mapView.settings.scrollGestures); |
| result(isScrollGesturesEnabled); |
| } else { |
| result(FlutterMethodNotImplemented); |
| } |
| } |
| |
| - (void)showAtX:(CGFloat)x Y:(CGFloat)y { |
| _mapView.frame = |
| CGRectMake(x, y, CGRectGetWidth(_mapView.frame), CGRectGetHeight(_mapView.frame)); |
| _mapView.hidden = NO; |
| } |
| |
| - (void)hide { |
| _mapView.hidden = YES; |
| } |
| |
| - (void)animateWithCameraUpdate:(GMSCameraUpdate*)cameraUpdate { |
| [_mapView animateWithCameraUpdate:cameraUpdate]; |
| } |
| |
| - (void)moveWithCameraUpdate:(GMSCameraUpdate*)cameraUpdate { |
| [_mapView moveCamera:cameraUpdate]; |
| } |
| |
| - (GMSCameraPosition*)cameraPosition { |
| if (_trackCameraPosition) { |
| return _mapView.camera; |
| } else { |
| return nil; |
| } |
| } |
| |
| #pragma mark - FLTGoogleMapOptionsSink methods |
| |
| - (void)setCamera:(GMSCameraPosition*)camera { |
| _mapView.camera = camera; |
| } |
| |
| - (void)setCameraTargetBounds:(GMSCoordinateBounds*)bounds { |
| _mapView.cameraTargetBounds = bounds; |
| } |
| |
| - (void)setCompassEnabled:(BOOL)enabled { |
| _mapView.settings.compassButton = enabled; |
| } |
| |
| - (void)setMapType:(GMSMapViewType)mapType { |
| _mapView.mapType = mapType; |
| } |
| |
| - (void)setMinZoom:(float)minZoom maxZoom:(float)maxZoom { |
| [_mapView setMinZoom:minZoom maxZoom:maxZoom]; |
| } |
| |
| - (void)setRotateGesturesEnabled:(BOOL)enabled { |
| _mapView.settings.rotateGestures = enabled; |
| } |
| |
| - (void)setScrollGesturesEnabled:(BOOL)enabled { |
| _mapView.settings.scrollGestures = enabled; |
| } |
| |
| - (void)setTiltGesturesEnabled:(BOOL)enabled { |
| _mapView.settings.tiltGestures = enabled; |
| } |
| |
| - (void)setTrackCameraPosition:(BOOL)enabled { |
| _trackCameraPosition = enabled; |
| } |
| |
| - (void)setZoomGesturesEnabled:(BOOL)enabled { |
| _mapView.settings.zoomGestures = enabled; |
| } |
| |
| - (void)setMyLocationEnabled:(BOOL)enabled { |
| _mapView.myLocationEnabled = enabled; |
| _mapView.settings.myLocationButton = enabled; |
| } |
| |
| #pragma mark - GMSMapViewDelegate methods |
| |
| - (void)mapView:(GMSMapView*)mapView willMove:(BOOL)gesture { |
| [_channel invokeMethod:@"camera#onMoveStarted" arguments:@{@"isGesture" : @(gesture)}]; |
| } |
| |
| - (void)mapView:(GMSMapView*)mapView didChangeCameraPosition:(GMSCameraPosition*)position { |
| if (!_cameraDidInitialSetup) { |
| // We suspected a bug in the iOS Google Maps SDK caused the camera is not properly positioned at |
| // initialization. https://github.com/flutter/flutter/issues/24806 |
| // This temporary workaround fix is provided while the actual fix in the Google Maps SDK is |
| // still being investigated. |
| // TODO(cyanglaz): Remove this temporary fix once the Maps SDK issue is resolved. |
| // https://github.com/flutter/flutter/issues/27550 |
| _cameraDidInitialSetup = YES; |
| [mapView moveCamera:[GMSCameraUpdate setCamera:_mapView.camera]]; |
| } |
| if (_trackCameraPosition) { |
| [_channel invokeMethod:@"camera#onMove" arguments:@{@"position" : PositionToJson(position)}]; |
| } |
| } |
| |
| - (void)mapView:(GMSMapView*)mapView idleAtCameraPosition:(GMSCameraPosition*)position { |
| [_channel invokeMethod:@"camera#onIdle" arguments:@{}]; |
| } |
| |
| - (BOOL)mapView:(GMSMapView*)mapView didTapMarker:(GMSMarker*)marker { |
| NSString* markerId = marker.userData[0]; |
| return [_markersController onMarkerTap:markerId]; |
| } |
| |
| - (void)mapView:(GMSMapView*)mapView didTapInfoWindowOfMarker:(GMSMarker*)marker { |
| NSString* markerId = marker.userData[0]; |
| [_markersController onInfoWindowTap:markerId]; |
| } |
| - (void)mapView:(GMSMapView*)mapView didTapOverlay:(GMSOverlay*)overlay { |
| NSString* polylineId = overlay.userData[0]; |
| [_polylinesController onPolylineTap:polylineId]; |
| } |
| |
| - (void)mapView:(GMSMapView*)mapView didTapAtCoordinate:(CLLocationCoordinate2D)coordinate { |
| [_channel invokeMethod:@"map#onTap" arguments:@{@"position" : LocationToJson(coordinate)}]; |
| } |
| |
| @end |
| |
| #pragma mark - Implementations of JSON conversion functions. |
| |
| static NSArray* LocationToJson(CLLocationCoordinate2D position) { |
| return @[ @(position.latitude), @(position.longitude) ]; |
| } |
| |
| static NSDictionary* PositionToJson(GMSCameraPosition* position) { |
| if (!position) { |
| return nil; |
| } |
| return @{ |
| @"target" : LocationToJson([position target]), |
| @"zoom" : @([position zoom]), |
| @"bearing" : @([position bearing]), |
| @"tilt" : @([position viewingAngle]), |
| }; |
| } |
| |
| static NSDictionary* GMSCoordinateBoundsToJson(GMSCoordinateBounds* bounds) { |
| if (!bounds) { |
| return nil; |
| } |
| return @{ |
| @"southwest" : LocationToJson([bounds southWest]), |
| @"northeast" : LocationToJson([bounds northEast]), |
| }; |
| } |
| |
| static float ToFloat(NSNumber* data) { return [FLTGoogleMapJsonConversions toFloat:data]; } |
| |
| static CLLocationCoordinate2D ToLocation(NSArray* data) { |
| return [FLTGoogleMapJsonConversions toLocation:data]; |
| } |
| |
| static int ToInt(NSNumber* data) { return [FLTGoogleMapJsonConversions toInt:data]; } |
| |
| static BOOL ToBool(NSNumber* data) { return [FLTGoogleMapJsonConversions toBool:data]; } |
| |
| static CGPoint ToPoint(NSArray* data) { return [FLTGoogleMapJsonConversions toPoint:data]; } |
| |
| static GMSCameraPosition* ToCameraPosition(NSDictionary* data) { |
| return [GMSCameraPosition cameraWithTarget:ToLocation(data[@"target"]) |
| zoom:ToFloat(data[@"zoom"]) |
| bearing:ToDouble(data[@"bearing"]) |
| viewingAngle:ToDouble(data[@"tilt"])]; |
| } |
| |
| static GMSCameraPosition* ToOptionalCameraPosition(NSDictionary* json) { |
| return json ? ToCameraPosition(json) : nil; |
| } |
| |
| static GMSCoordinateBounds* ToBounds(NSArray* data) { |
| return [[GMSCoordinateBounds alloc] initWithCoordinate:ToLocation(data[0]) |
| coordinate:ToLocation(data[1])]; |
| } |
| |
| static GMSCoordinateBounds* ToOptionalBounds(NSArray* data) { |
| return (data[0] == [NSNull null]) ? nil : ToBounds(data[0]); |
| } |
| |
| static GMSMapViewType ToMapViewType(NSNumber* json) { |
| int value = ToInt(json); |
| return (GMSMapViewType)(value == 0 ? 5 : value); |
| } |
| |
| static GMSCameraUpdate* ToCameraUpdate(NSArray* data) { |
| NSString* update = data[0]; |
| if ([update isEqualToString:@"newCameraPosition"]) { |
| return [GMSCameraUpdate setCamera:ToCameraPosition(data[1])]; |
| } else if ([update isEqualToString:@"newLatLng"]) { |
| return [GMSCameraUpdate setTarget:ToLocation(data[1])]; |
| } else if ([update isEqualToString:@"newLatLngBounds"]) { |
| return [GMSCameraUpdate fitBounds:ToBounds(data[1]) withPadding:ToDouble(data[2])]; |
| } else if ([update isEqualToString:@"newLatLngZoom"]) { |
| return [GMSCameraUpdate setTarget:ToLocation(data[1]) zoom:ToFloat(data[2])]; |
| } else if ([update isEqualToString:@"scrollBy"]) { |
| return [GMSCameraUpdate scrollByX:ToDouble(data[1]) Y:ToDouble(data[2])]; |
| } else if ([update isEqualToString:@"zoomBy"]) { |
| if (data.count == 2) { |
| return [GMSCameraUpdate zoomBy:ToFloat(data[1])]; |
| } else { |
| return [GMSCameraUpdate zoomBy:ToFloat(data[1]) atPoint:ToPoint(data[2])]; |
| } |
| } else if ([update isEqualToString:@"zoomIn"]) { |
| return [GMSCameraUpdate zoomIn]; |
| } else if ([update isEqualToString:@"zoomOut"]) { |
| return [GMSCameraUpdate zoomOut]; |
| } else if ([update isEqualToString:@"zoomTo"]) { |
| return [GMSCameraUpdate zoomTo:ToFloat(data[1])]; |
| } |
| return nil; |
| } |
| |
| static void InterpretMapOptions(NSDictionary* data, id<FLTGoogleMapOptionsSink> sink) { |
| NSArray* cameraTargetBounds = data[@"cameraTargetBounds"]; |
| if (cameraTargetBounds) { |
| [sink setCameraTargetBounds:ToOptionalBounds(cameraTargetBounds)]; |
| } |
| NSNumber* compassEnabled = data[@"compassEnabled"]; |
| if (compassEnabled) { |
| [sink setCompassEnabled:ToBool(compassEnabled)]; |
| } |
| NSNumber* mapType = data[@"mapType"]; |
| if (mapType) { |
| [sink setMapType:ToMapViewType(mapType)]; |
| } |
| NSArray* zoomData = data[@"minMaxZoomPreference"]; |
| if (zoomData) { |
| float minZoom = (zoomData[0] == [NSNull null]) ? kGMSMinZoomLevel : ToFloat(zoomData[0]); |
| float maxZoom = (zoomData[1] == [NSNull null]) ? kGMSMaxZoomLevel : ToFloat(zoomData[1]); |
| [sink setMinZoom:minZoom maxZoom:maxZoom]; |
| } |
| NSNumber* rotateGesturesEnabled = data[@"rotateGesturesEnabled"]; |
| if (rotateGesturesEnabled) { |
| [sink setRotateGesturesEnabled:ToBool(rotateGesturesEnabled)]; |
| } |
| NSNumber* scrollGesturesEnabled = data[@"scrollGesturesEnabled"]; |
| if (scrollGesturesEnabled) { |
| [sink setScrollGesturesEnabled:ToBool(scrollGesturesEnabled)]; |
| } |
| NSNumber* tiltGesturesEnabled = data[@"tiltGesturesEnabled"]; |
| if (tiltGesturesEnabled) { |
| [sink setTiltGesturesEnabled:ToBool(tiltGesturesEnabled)]; |
| } |
| NSNumber* trackCameraPosition = data[@"trackCameraPosition"]; |
| if (trackCameraPosition) { |
| [sink setTrackCameraPosition:ToBool(trackCameraPosition)]; |
| } |
| NSNumber* zoomGesturesEnabled = data[@"zoomGesturesEnabled"]; |
| if (zoomGesturesEnabled) { |
| [sink setZoomGesturesEnabled:ToBool(zoomGesturesEnabled)]; |
| } |
| NSNumber* myLocationEnabled = data[@"myLocationEnabled"]; |
| if (myLocationEnabled) { |
| [sink setMyLocationEnabled:ToBool(myLocationEnabled)]; |
| } |
| } |
