Support master-detail views using SwiftUI's NavigationView

.github/workflows/main.yml

@@ -11,6 +11,7 @@ jobs:
       matrix:
         destination:
           - generic/platform=iOS
+          - generic/platform=macOS
 
     steps:
     - uses: actions/checkout@v2

Package.swift

@@ -6,7 +6,8 @@ import PackageDescription
 let package = Package(
     name: "Router",
     platforms: [
-        .iOS(.v11)
+        .iOS(.v11),
+        .macOS(.v10_15)
     ],
     products: [
         // Products define the executables and libraries a package produces, and make them visible to other packages.

Sources/Router/Router/Environment+router.swift

@@ -1,5 +1,30 @@
 import SwiftUI
 
+@available(iOS 13, macOS 10.15, *)
+struct WeakRouter<R: Router & AnyObject>: Router {
+    weak var _router: R?
+
+    func navigate<Target, ThePresenter>(to target: Target, _ environmentObject: Target.EnvironmentObjectDependency, using presenter: ThePresenter, source: RouteViewIdentifier?) -> RouteViewIdentifier where Target : EnvironmentDependentRoute, ThePresenter : Presenter {
+        _router?.navigate(to: target, environmentObject, using: presenter, source: source) ?? .init()
+    }
+
+    func replaceRoot<Target, ThePresenter>(with target: Target, _ environmentObject: Target.EnvironmentObjectDependency, using presenter: ThePresenter) -> RouteViewIdentifier where Target : EnvironmentDependentRoute, ThePresenter : Presenter {
+        _router?.replaceRoot(with: target, environmentObject, using: presenter) ?? .init()
+    }
+
+    func dismissUpTo(routeMatchingId id: RouteViewIdentifier) {
+        _router?.dismissUpTo(routeMatchingId: id)
+    }
+
+    func dismissUpToIncluding(routeMatchingId id: RouteViewIdentifier) {
+        _router?.dismissUpToIncluding(routeMatchingId: id)
+    }
+
+    func isPresenting(routeMatchingId id: RouteViewIdentifier) -> Bool {
+        _router?.isPresenting(routeMatchingId: id) ?? false
+    }
+}
+
 @available(iOS 13, macOS 10.15, *)
 fileprivate struct RouterKey: EnvironmentKey {
     typealias Value = Router?