382 lines
12 KiB
Objective-C
382 lines
12 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import "RCTMapManager.h"
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#import "RCTBridge.h"
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#import "RCTConvert+CoreLocation.h"
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#import "RCTConvert+MapKit.h"
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#import "RCTEventDispatcher.h"
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#import "RCTMap.h"
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#import "RCTUtils.h"
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#import "UIView+React.h"
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#import "RCTMapAnnotation.h"
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#import "RCTMapOverlay.h"
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#import <MapKit/MapKit.h>
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static NSString *const RCTMapViewKey = @"MapView";
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#if __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_9_0
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static NSString *const RCTMapPinRed = @"#ff3b30";
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static NSString *const RCTMapPinGreen = @"#4cd964";
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static NSString *const RCTMapPinPurple = @"#c969e0";
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@implementation RCTConvert (MKPinAnnotationColor)
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RCT_ENUM_CONVERTER(MKPinAnnotationColor, (@{
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RCTMapPinRed: @(MKPinAnnotationColorRed),
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RCTMapPinGreen: @(MKPinAnnotationColorGreen),
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RCTMapPinPurple: @(MKPinAnnotationColorPurple)
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}), MKPinAnnotationColorRed, unsignedIntegerValue)
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@end
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#endif
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@interface RCTMapManager() <MKMapViewDelegate>
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@end
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@implementation RCTMapManager
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RCT_EXPORT_MODULE()
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- (UIView *)view
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{
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RCTMap *map = [RCTMap new];
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map.delegate = self;
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return map;
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}
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RCT_EXPORT_VIEW_PROPERTY(showsUserLocation, BOOL)
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RCT_EXPORT_VIEW_PROPERTY(showsPointsOfInterest, BOOL)
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RCT_EXPORT_VIEW_PROPERTY(showsCompass, BOOL)
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RCT_EXPORT_VIEW_PROPERTY(zoomEnabled, BOOL)
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RCT_EXPORT_VIEW_PROPERTY(rotateEnabled, BOOL)
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RCT_EXPORT_VIEW_PROPERTY(pitchEnabled, BOOL)
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RCT_EXPORT_VIEW_PROPERTY(scrollEnabled, BOOL)
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RCT_EXPORT_VIEW_PROPERTY(maxDelta, CGFloat)
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RCT_EXPORT_VIEW_PROPERTY(minDelta, CGFloat)
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RCT_EXPORT_VIEW_PROPERTY(legalLabelInsets, UIEdgeInsets)
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RCT_EXPORT_VIEW_PROPERTY(mapType, MKMapType)
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RCT_EXPORT_VIEW_PROPERTY(annotations, NSArray<RCTMapAnnotation *>)
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RCT_EXPORT_VIEW_PROPERTY(overlays, NSArray<RCTMapOverlay *>)
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RCT_EXPORT_VIEW_PROPERTY(onChange, RCTBubblingEventBlock)
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RCT_EXPORT_VIEW_PROPERTY(onPress, RCTBubblingEventBlock)
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RCT_CUSTOM_VIEW_PROPERTY(region, MKCoordinateRegion, RCTMap)
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{
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[view setRegion:json ? [RCTConvert MKCoordinateRegion:json] : defaultView.region animated:YES];
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}
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- (NSDictionary<NSString *, id> *)constantsToExport
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{
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NSString *red, *green, *purple;
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#if __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_9_0
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if (![MKPinAnnotationView respondsToSelector:@selector(redPinColor)]) {
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red = RCTMapPinRed;
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green = RCTMapPinGreen;
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purple = RCTMapPinPurple;
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} else
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#endif
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{
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red = RCTColorToHexString([MKPinAnnotationView redPinColor].CGColor);
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green = RCTColorToHexString([MKPinAnnotationView greenPinColor].CGColor);
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purple = RCTColorToHexString([MKPinAnnotationView purplePinColor].CGColor);
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}
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return @{
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@"PinColors": @{
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@"RED": red,
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@"GREEN": green,
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@"PURPLE": purple,
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}
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};
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}
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#pragma mark MKMapViewDelegate
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- (void)mapView:(RCTMap *)mapView didSelectAnnotationView:(MKAnnotationView *)view
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{
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if (mapView.onPress && [view.annotation isKindOfClass:[RCTMapAnnotation class]]) {
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RCTMapAnnotation *annotation = (RCTMapAnnotation *)view.annotation;
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mapView.onPress(@{
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@"action": @"annotation-click",
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@"annotation": @{
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@"id": annotation.identifier,
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@"title": annotation.title ?: @"",
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@"subtitle": annotation.subtitle ?: @"",
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@"latitude": @(annotation.coordinate.latitude),
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@"longitude": @(annotation.coordinate.longitude)
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}
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});
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}
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}
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- (MKAnnotationView *)mapView:(RCTMap *)mapView
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viewForAnnotation:(RCTMapAnnotation *)annotation
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{
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if (![annotation isKindOfClass:[RCTMapAnnotation class]]) {
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return nil;
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}
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MKAnnotationView *annotationView;
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annotationView.clipsToBounds = YES;
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if (annotation.viewIndex != NSNotFound) {
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NSString *const reuseIdentifier = @"RCTCustomViewAnnotation";
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annotationView = [mapView dequeueReusableAnnotationViewWithIdentifier:reuseIdentifier];
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if (!annotationView) {
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annotationView = [[MKAnnotationView alloc] initWithAnnotation:annotation
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reuseIdentifier:reuseIdentifier];
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}
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for (UIView *view in annotationView.subviews) {
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[view removeFromSuperview];
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}
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UIView *reactView = mapView.reactSubviews[annotation.viewIndex];
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annotationView.bounds = reactView.frame;
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[annotationView addSubview:reactView];
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} else if (annotation.image) {
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NSString *reuseIdentifier = NSStringFromClass([MKAnnotationView class]);
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annotationView =
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[mapView dequeueReusableAnnotationViewWithIdentifier:reuseIdentifier] ?:
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[[MKAnnotationView alloc] initWithAnnotation:annotation
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reuseIdentifier:reuseIdentifier];
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annotationView.image = annotation.image;
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} else {
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NSString *reuseIdentifier = NSStringFromClass([MKPinAnnotationView class]);
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annotationView =
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[mapView dequeueReusableAnnotationViewWithIdentifier:reuseIdentifier] ?:
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[[MKPinAnnotationView alloc] initWithAnnotation:annotation
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reuseIdentifier:reuseIdentifier];
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((MKPinAnnotationView *)annotationView).animatesDrop = annotation.animateDrop;
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#if __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_9_0
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if (![annotationView respondsToSelector:@selector(pinTintColor)]) {
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NSString *hexColor = annotation.tintColor ?
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RCTColorToHexString(annotation.tintColor.CGColor) : RCTMapPinRed;
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((MKPinAnnotationView *)annotationView).pinColor =
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[RCTConvert MKPinAnnotationColor:hexColor];
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} else
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#endif
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{
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((MKPinAnnotationView *)annotationView).pinTintColor =
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annotation.tintColor ?: [MKPinAnnotationView redPinColor];
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}
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}
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annotationView.canShowCallout = true;
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if (annotation.leftCalloutViewIndex != NSNotFound) {
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annotationView.leftCalloutAccessoryView =
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mapView.reactSubviews[annotation.leftCalloutViewIndex];
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} else if (annotation.hasLeftCallout) {
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annotationView.leftCalloutAccessoryView =
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[UIButton buttonWithType:UIButtonTypeDetailDisclosure];
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} else {
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annotationView.leftCalloutAccessoryView = nil;
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}
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if (annotation.rightCalloutViewIndex != NSNotFound) {
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annotationView.rightCalloutAccessoryView =
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mapView.reactSubviews[annotation.rightCalloutViewIndex];
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} else if (annotation.hasRightCallout) {
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annotationView.rightCalloutAccessoryView =
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[UIButton buttonWithType:UIButtonTypeDetailDisclosure];
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} else {
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annotationView.rightCalloutAccessoryView = nil;
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}
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//http://stackoverflow.com/questions/32581049/mapkit-ios-9-detailcalloutaccessoryview-usage
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if ([annotationView respondsToSelector:@selector(detailCalloutAccessoryView)]) {
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if (annotation.detailCalloutViewIndex != NSNotFound) {
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UIView *calloutView = mapView.reactSubviews[annotation.detailCalloutViewIndex];
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NSLayoutConstraint *widthConstraint =
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[NSLayoutConstraint constraintWithItem:calloutView
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attribute:NSLayoutAttributeWidth
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relatedBy:NSLayoutRelationEqual
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toItem:nil
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attribute:NSLayoutAttributeNotAnAttribute
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multiplier:1
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constant:calloutView.frame.size.width];
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[calloutView addConstraint:widthConstraint];
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NSLayoutConstraint *heightConstraint =
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[NSLayoutConstraint constraintWithItem:calloutView
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attribute:NSLayoutAttributeHeight
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relatedBy:NSLayoutRelationEqual
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toItem:nil
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attribute:NSLayoutAttributeNotAnAttribute
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multiplier:1
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constant:calloutView.frame.size.height];
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[calloutView addConstraint:heightConstraint];
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annotationView.detailCalloutAccessoryView = calloutView;
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} else {
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annotationView.detailCalloutAccessoryView = nil;
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}
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}
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return annotationView;
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}
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- (MKOverlayRenderer *)mapView:(__unused MKMapView *)mapView
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rendererForOverlay:(RCTMapOverlay *)overlay
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{
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if ([overlay isKindOfClass:[RCTMapOverlay class]]) {
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MKPolylineRenderer *polylineRenderer =
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[[MKPolylineRenderer alloc] initWithPolyline:overlay];
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polylineRenderer.strokeColor = overlay.strokeColor;
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polylineRenderer.lineWidth = overlay.lineWidth;
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return polylineRenderer;
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} else {
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return nil;
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}
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}
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- (void)mapView:(RCTMap *)mapView annotationView:(MKAnnotationView *)view
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calloutAccessoryControlTapped:(UIControl *)control
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{
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if (mapView.onPress) {
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// Pass to JS
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RCTMapAnnotation *annotation = (RCTMapAnnotation *)view.annotation;
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mapView.onPress(@{
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@"side": (control == view.leftCalloutAccessoryView) ? @"left" : @"right",
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@"action": @"callout-click",
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@"annotationId": annotation.identifier
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});
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}
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}
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- (void)mapView:(RCTMap *)mapView didUpdateUserLocation:(MKUserLocation *)location
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{
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if (mapView.followUserLocation) {
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MKCoordinateRegion region;
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region.span.latitudeDelta = RCTMapDefaultSpan;
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region.span.longitudeDelta = RCTMapDefaultSpan;
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region.center = location.coordinate;
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[mapView setRegion:region animated:YES];
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// Move to user location only for the first time it loads up.
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mapView.followUserLocation = NO;
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}
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}
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- (void)mapView:(RCTMap *)mapView regionWillChangeAnimated:(__unused BOOL)animated
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{
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[self _regionChanged:mapView];
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mapView.regionChangeObserveTimer =
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[NSTimer timerWithTimeInterval:RCTMapRegionChangeObserveInterval
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target:self
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selector:@selector(_onTick:)
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userInfo:@{ RCTMapViewKey: mapView }
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repeats:YES];
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[[NSRunLoop mainRunLoop] addTimer:mapView.regionChangeObserveTimer
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forMode:NSRunLoopCommonModes];
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}
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- (void)mapView:(RCTMap *)mapView regionDidChangeAnimated:(__unused BOOL)animated
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{
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[mapView.regionChangeObserveTimer invalidate];
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mapView.regionChangeObserveTimer = nil;
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[self _regionChanged:mapView];
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// Don't send region did change events until map has
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// started rendering, as these won't represent the final location
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if (mapView.hasStartedRendering) {
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[self _emitRegionChangeEvent:mapView continuous:NO];
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};
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}
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- (void)mapViewWillStartRenderingMap:(RCTMap *)mapView
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{
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mapView.hasStartedRendering = YES;
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[self _emitRegionChangeEvent:mapView continuous:NO];
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}
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#pragma mark Private
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- (void)_onTick:(NSTimer *)timer
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{
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[self _regionChanged:timer.userInfo[RCTMapViewKey]];
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}
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- (void)_regionChanged:(RCTMap *)mapView
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{
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BOOL needZoom = NO;
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CGFloat newLongitudeDelta = 0.0f;
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MKCoordinateRegion region = mapView.region;
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// On iOS 7, it's possible that we observe invalid locations during
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// initialization of the map. Filter those out.
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if (!CLLocationCoordinate2DIsValid(region.center)) {
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return;
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}
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// Calculation on float is not 100% accurate. If user zoom to max/min and then
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// move, it's likely the map will auto zoom to max/min from time to time.
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// So let's try to make map zoom back to 99% max or 101% min so that there is
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// some buffer, and moving the map won't constantly hit the max/min bound.
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if (mapView.maxDelta > FLT_EPSILON &&
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region.span.longitudeDelta > mapView.maxDelta) {
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needZoom = YES;
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newLongitudeDelta = mapView.maxDelta * (1 - RCTMapZoomBoundBuffer);
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} else if (mapView.minDelta > FLT_EPSILON &&
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region.span.longitudeDelta < mapView.minDelta) {
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needZoom = YES;
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newLongitudeDelta = mapView.minDelta * (1 + RCTMapZoomBoundBuffer);
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}
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if (needZoom) {
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region.span.latitudeDelta =
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region.span.latitudeDelta / region.span.longitudeDelta * newLongitudeDelta;
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region.span.longitudeDelta = newLongitudeDelta;
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mapView.region = region;
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}
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// Continously observe region changes
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[self _emitRegionChangeEvent:mapView continuous:YES];
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}
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- (void)_emitRegionChangeEvent:(RCTMap *)mapView continuous:(BOOL)continuous
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{
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if (mapView.onChange) {
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MKCoordinateRegion region = mapView.region;
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if (!CLLocationCoordinate2DIsValid(region.center)) {
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return;
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}
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mapView.onChange(@{
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@"continuous": @(continuous),
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@"region": @{
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@"latitude": @(RCTZeroIfNaN(region.center.latitude)),
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@"longitude": @(RCTZeroIfNaN(region.center.longitude)),
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@"latitudeDelta": @(RCTZeroIfNaN(region.span.latitudeDelta)),
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@"longitudeDelta": @(RCTZeroIfNaN(region.span.longitudeDelta)),
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}
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});
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}
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}
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@end
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