131 lines
3.7 KiB
Objective-C
131 lines
3.7 KiB
Objective-C
// Copyright 2004-present Facebook. All Rights Reserved.
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#import "RCTMap.h"
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#import "RCTEventDispatcher.h"
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#import "RCTLog.h"
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#import "RCTUtils.h"
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const CLLocationDegrees RCTMapDefaultSpan = 0.005;
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const NSTimeInterval RCTMapRegionChangeObserveInterval = 0.1;
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const CGFloat RCTMapZoomBoundBuffer = 0.01;
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@interface RCTMap()
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@property (nonatomic, strong) UIView *legalLabel;
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@property (nonatomic, strong) CLLocationManager *locationManager;
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@end
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@implementation RCTMap
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- (instancetype)init
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{
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self = [super init];
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if (self) {
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// Find Apple link label
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for (UIView *subview in self.subviews) {
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if ([NSStringFromClass(subview.class) isEqualToString:@"MKAttributionLabel"]) {
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// This check is super hacky, but the whole premise of moving around Apple's internal subviews is super hacky
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_legalLabel = subview;
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break;
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}
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}
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}
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return self;
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}
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- (void)dealloc
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{
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[self.regionChangeObserveTimer invalidate];
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}
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- (void)layoutSubviews
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{
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[super layoutSubviews];
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// Force resize subviews - only the layer is resized by default
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CGRect mapFrame = self.frame;
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self.frame = CGRectZero;
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self.frame = mapFrame;
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if (_legalLabel) {
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dispatch_async(dispatch_get_main_queue(), ^{
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CGRect frame = _legalLabel.frame;
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if (_legalLabelInsets.left) {
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frame.origin.x = _legalLabelInsets.left;
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} else if (_legalLabelInsets.right) {
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frame.origin.x = mapFrame.size.width - _legalLabelInsets.right - frame.size.width;
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}
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if (_legalLabelInsets.top) {
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frame.origin.y = _legalLabelInsets.top;
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} else if (_legalLabelInsets.bottom) {
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frame.origin.y = mapFrame.size.height - _legalLabelInsets.bottom - frame.size.height;
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}
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_legalLabel.frame = frame;
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});
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}
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}
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#pragma mark Accessors
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- (void)setShowsUserLocation:(BOOL)showsUserLocation
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{
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if (self.showsUserLocation != showsUserLocation) {
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if (showsUserLocation && !_locationManager) {
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_locationManager = [[CLLocationManager alloc] init];
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if ([_locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]) {
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[_locationManager requestWhenInUseAuthorization];
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}
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}
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[super setShowsUserLocation:showsUserLocation];
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// If it needs to show user location, force map view centered
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// on user's current location on user location updates
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self.followUserLocation = showsUserLocation;
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}
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}
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- (void)setJSONRegion:(NSDictionary *)region
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{
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if (region) {
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MKCoordinateRegion coordinateRegion = self.region;
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if ([region[@"latitude"] isKindOfClass:[NSNumber class]]) {
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coordinateRegion.center.latitude = [region[@"latitude"] doubleValue];
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} else {
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RCTLogError(@"region must include numeric latitude, got: %@", region);
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return;
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}
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if ([region[@"longitude"] isKindOfClass:[NSNumber class]]) {
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coordinateRegion.center.longitude = [region[@"longitude"] doubleValue];
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} else {
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RCTLogError(@"region must include numeric longitude, got: %@", region);
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return;
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}
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if ([region[@"latitudeDelta"] isKindOfClass:[NSNumber class]]) {
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coordinateRegion.span.latitudeDelta = [region[@"latitudeDelta"] doubleValue];
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}
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if ([region[@"longitudeDelta"] isKindOfClass:[NSNumber class]]) {
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coordinateRegion.span.longitudeDelta = [region[@"longitudeDelta"] doubleValue];
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}
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[self setRegion:coordinateRegion animated:YES];
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}
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}
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- (NSDictionary *)JSONRegion
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{
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MKCoordinateRegion region = self.region;
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if (!CLLocationCoordinate2DIsValid(region.center)) {
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return nil;
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}
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return @{
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@"latitude": @(FLUSH_NAN(region.center.latitude)),
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@"longitude": @(FLUSH_NAN(region.center.longitude)),
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@"latitudeDelta": @(FLUSH_NAN(region.span.latitudeDelta)),
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@"longitudeDelta": @(FLUSH_NAN(region.span.longitudeDelta)),
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};
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}
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@end
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