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CLLocationManager+Rx.swift
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CLLocationManager+Rx.swift
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//
// CLLocationManager+Rx.swift
// RxExample
//
// Created by Carlos García on 8/7/15.
// Copyright © 2015 Krunoslav Zaher. All rights reserved.
//
import CoreLocation
import RxSwift
import RxCocoa
extension Reactive where Base: CLLocationManager {
/**
Reactive wrapper for `delegate`.
For more information take a look at `DelegateProxyType` protocol documentation.
*/
public var delegate: DelegateProxy<CLLocationManager, CLLocationManagerDelegate> {
return RxCLLocationManagerDelegateProxy.proxy(for: base)
}
// MARK: Responding to Location Events
/**
Reactive wrapper for `delegate` message.
*/
public var didUpdateLocations: Observable<[CLLocation]> {
return RxCLLocationManagerDelegateProxy.proxy(for: base).didUpdateLocationsSubject.asObservable()
}
/**
Reactive wrapper for `delegate` message.
*/
public var didFailWithError: Observable<Error> {
return RxCLLocationManagerDelegateProxy.proxy(for: base).didFailWithErrorSubject.asObservable()
}
#if os(iOS) || os(macOS)
/**
Reactive wrapper for `delegate` message.
*/
public var didFinishDeferredUpdatesWithError: Observable<Error?> {
return delegate.methodInvoked(#selector(CLLocationManagerDelegate.locationManager(_:didFinishDeferredUpdatesWithError:)))
.map { a in
return try castOptionalOrThrow(Error.self, a[1])
}
}
#endif
#if os(iOS)
// MARK: Pausing Location Updates
/**
Reactive wrapper for `delegate` message.
*/
public var didPauseLocationUpdates: Observable<Void> {
return delegate.methodInvoked(#selector(CLLocationManagerDelegate.locationManagerDidPauseLocationUpdates(_:)))
.map { _ in
return ()
}
}
/**
Reactive wrapper for `delegate` message.
*/
public var didResumeLocationUpdates: Observable<Void> {
return delegate.methodInvoked( #selector(CLLocationManagerDelegate.locationManagerDidResumeLocationUpdates(_:)))
.map { _ in
return ()
}
}
// MARK: Responding to Heading Events
/**
Reactive wrapper for `delegate` message.
*/
public var didUpdateHeading: Observable<CLHeading> {
return delegate.methodInvoked(#selector(CLLocationManagerDelegate.locationManager(_:didUpdateHeading:)))
.map { a in
return try castOrThrow(CLHeading.self, a[1])
}
}
// MARK: Responding to Region Events
/**
Reactive wrapper for `delegate` message.
*/
public var didEnterRegion: Observable<CLRegion> {
return delegate.methodInvoked(#selector(CLLocationManagerDelegate.locationManager(_:didEnterRegion:)))
.map { a in
return try castOrThrow(CLRegion.self, a[1])
}
}
/**
Reactive wrapper for `delegate` message.
*/
public var didExitRegion: Observable<CLRegion> {
return delegate.methodInvoked(#selector(CLLocationManagerDelegate.locationManager(_:didExitRegion:)))
.map { a in
return try castOrThrow(CLRegion.self, a[1])
}
}
#endif
#if os(iOS) || os(macOS)
/**
Reactive wrapper for `delegate` message.
*/
@available(OSX 10.10, *)
public var didDetermineStateForRegion: Observable<(state: CLRegionState, region: CLRegion)> {
return delegate.methodInvoked(#selector(CLLocationManagerDelegate.locationManager(_:didDetermineState:for:)))
.map { a in
let stateNumber = try castOrThrow(NSNumber.self, a[1])
let state = CLRegionState(rawValue: stateNumber.intValue) ?? CLRegionState.unknown
let region = try castOrThrow(CLRegion.self, a[2])
return (state: state, region: region)
}
}
/**
Reactive wrapper for `delegate` message.
*/
public var monitoringDidFailForRegionWithError: Observable<(region: CLRegion?, error: Error)> {
return delegate.methodInvoked(#selector(CLLocationManagerDelegate.locationManager(_:monitoringDidFailFor:withError:)))
.map { a in
let region = try castOptionalOrThrow(CLRegion.self, a[1])
let error = try castOrThrow(Error.self, a[2])
return (region: region, error: error)
}
}
/**
Reactive wrapper for `delegate` message.
*/
public var didStartMonitoringForRegion: Observable<CLRegion> {
return delegate.methodInvoked(#selector(CLLocationManagerDelegate.locationManager(_:didStartMonitoringFor:)))
.map { a in
return try castOrThrow(CLRegion.self, a[1])
}
}
#endif
#if os(iOS)
// MARK: Responding to Ranging Events
/**
Reactive wrapper for `delegate` message.
*/
public var didRangeBeaconsInRegion: Observable<(beacons: [CLBeacon], region: CLBeaconRegion)> {
return delegate.methodInvoked(#selector(CLLocationManagerDelegate.locationManager(_:didRangeBeacons:in:)))
.map { a in
let beacons = try castOrThrow([CLBeacon].self, a[1])
let region = try castOrThrow(CLBeaconRegion.self, a[2])
return (beacons: beacons, region: region)
}
}
/**
Reactive wrapper for `delegate` message.
*/
public var rangingBeaconsDidFailForRegionWithError: Observable<(region: CLBeaconRegion, error: Error)> {
return delegate.methodInvoked(#selector(CLLocationManagerDelegate.locationManager(_:rangingBeaconsDidFailFor:withError:)))
.map { a in
let region = try castOrThrow(CLBeaconRegion.self, a[1])
let error = try castOrThrow(Error.self, a[2])
return (region: region, error: error)
}
}
// MARK: Responding to Visit Events
/**
Reactive wrapper for `delegate` message.
*/
@available(iOS 8.0, *)
public var didVisit: Observable<CLVisit> {
return delegate.methodInvoked(#selector(CLLocationManagerDelegate.locationManager(_:didVisit:)))
.map { a in
return try castOrThrow(CLVisit.self, a[1])
}
}
#endif
// MARK: Responding to Authorization Changes
/**
Reactive wrapper for `delegate` message.
*/
public var didChangeAuthorizationStatus: Observable<CLAuthorizationStatus> {
return delegate.methodInvoked(#selector(CLLocationManagerDelegate.locationManager(_:didChangeAuthorization:)))
.map { a in
let number = try castOrThrow(NSNumber.self, a[1])
return CLAuthorizationStatus(rawValue: Int32(number.intValue)) ?? .notDetermined
}
}
}
private func castOrThrow<T>(_ resultType: T.Type, _ object: Any) throws -> T {
guard let returnValue = object as? T else {
throw RxCocoaError.castingError(object: object, targetType: resultType)
}
return returnValue
}
private func castOptionalOrThrow<T>(_ resultType: T.Type, _ object: Any) throws -> T? {
if NSNull().isEqual(object) {
return nil
}
guard let returnValue = object as? T else {
throw RxCocoaError.castingError(object: object, targetType: resultType)
}
return returnValue
}