diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 2481847c..ceeb574a 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -13,12 +13,14 @@ concurrency: jobs: build-test: name: Build & Test (iOS Simulator) - runs-on: macos-14 + runs-on: macos-15 steps: - uses: actions/checkout@v4 - - name: Select Xcode - run: sudo xcode-select -s /Applications/Xcode_15.4.app + - name: Select latest Xcode + uses: maxim-lobanov/setup-xcode@v1 + with: + xcode-version: latest-stable - name: Show toolchain run: | @@ -29,48 +31,37 @@ jobs: run: swift package resolve - name: Build (iOS Simulator) - run: | - xcodebuild build \ - -scheme XCoordinator \ - -destination 'generic/platform=iOS Simulator' \ - -skipPackagePluginValidation \ - CODE_SIGNING_ALLOWED=NO + run: Scripts/build.sh - name: Test - run: | - xcodebuild test \ - -scheme XCoordinator \ - -destination 'platform=iOS Simulator,name=iPhone 15' \ - -skipPackagePluginValidation \ - CODE_SIGNING_ALLOWED=NO + run: Scripts/test.sh pod-lint: name: CocoaPods lint - runs-on: macos-14 + runs-on: macos-15 steps: - uses: actions/checkout@v4 - - name: Select Xcode - run: sudo xcode-select -s /Applications/Xcode_15.4.app + - name: Select latest Xcode + uses: maxim-lobanov/setup-xcode@v1 + with: + xcode-version: latest-stable - name: Lint podspec - run: pod lib lint --allow-warnings --fail-fast + # iOS only: recent Xcode does not ship the tvOS simulator runtime, and the rest + # of CI (build/test/docs) is iOS-only as well. + run: pod lib lint --allow-warnings --fail-fast --platforms=ios docs: name: DocC build - runs-on: macos-14 + runs-on: macos-15 steps: - uses: actions/checkout@v4 - - name: Select Xcode - run: sudo xcode-select -s /Applications/Xcode_15.4.app + - name: Select latest Xcode + uses: maxim-lobanov/setup-xcode@v1 + with: + xcode-version: latest-stable - name: Build documentation - run: | - swift package \ - --allow-writing-to-directory ./Documentation \ - generate-documentation \ - --target XCoordinator \ - --output-path ./Documentation \ - --transform-for-static-hosting \ - --warnings-as-errors + run: Scripts/docs.sh diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml index 334ce2cb..cf353e37 100644 --- a/.github/workflows/docs.yml +++ b/.github/workflows/docs.yml @@ -16,23 +16,17 @@ concurrency: jobs: build: - runs-on: macos-14 + runs-on: macos-15 steps: - uses: actions/checkout@v4 - - name: Select Xcode - run: sudo xcode-select -s /Applications/Xcode_15.4.app + - name: Select latest Xcode + uses: maxim-lobanov/setup-xcode@v1 + with: + xcode-version: latest-stable - name: Build documentation - run: | - swift package \ - --allow-writing-to-directory ./Documentation \ - generate-documentation \ - --target XCoordinator \ - --output-path ./Documentation \ - --transform-for-static-hosting \ - --hosting-base-path XCoordinator \ - --warnings-as-errors + run: Scripts/docs.sh XCoordinator - name: Upload artifact uses: actions/upload-pages-artifact@v3 diff --git a/Package.swift b/Package.swift index 4a8959d8..5d7fe3a9 100644 --- a/Package.swift +++ b/Package.swift @@ -4,7 +4,7 @@ import PackageDescription let package = Package( name: "XCoordinator", - platforms: [.iOS(.v14), .tvOS(.v14)], + platforms: [.iOS(.v16), .tvOS(.v16)], products: [ .library( name: "XCoordinator", @@ -24,8 +24,5 @@ let package = Package( .target( name: "XCoordinatorRx", dependencies: ["XCoordinator", "RxSwift"]), - .testTarget( - name: "XCoordinatorTests", - dependencies: ["XCoordinator", "XCoordinatorRx"]), ] ) diff --git a/README.md b/README.md index 9539c5fd..e512291b 100644 --- a/README.md +++ b/README.md @@ -49,7 +49,9 @@ XCoordinator decouples navigation from view controllers and view models: you des ## 🏃‍♂️ Getting started -Define a `Route` enum and a `Coordinator` that prepares a transition for each case: +Define a `Route` enum and a `Coordinator` that prepares a transition for each case. Since 3.0 you can +describe transitions with the **transition builder** ✨ — opt in by annotating your override with +`@TransitionBuilder`: ```swift enum UserListRoute: Route { @@ -63,19 +65,45 @@ class UserListCoordinator: NavigationCoordinator { super.init(initialRoute: .home) } + @TransitionBuilder override func prepareTransition(for route: UserListRoute) -> NavigationTransition { switch route { case .home: - return .push(HomeViewController()) + Transition.push(HomeViewController()) case .user(let name): - return .present(UserCoordinator(user: name), animation: .default) + Transition.present(UserCoordinator(user: name), animation: .default) case .logout: - return .dismiss() + Transition.dismiss() } } } ``` +> ✨ **New in 3.0 — the transition builder.** A `@resultBuilder` DSL lets you compose transitions +> declaratively by listing the `Transition.…` factories (`.push`, `.present`, `.select`, …) — list +> several in one block to chain them (like `.multiple`). It's opt-in and additive. + +
+Classic style (still supported, non-breaking) + +The original style — a plain `prepareTransition(for:)` returning `Transition.…` factories — keeps working +exactly as before. Just omit the `@TransitionBuilder` annotation: + +```swift +class UserListCoordinator: NavigationCoordinator { + override func prepareTransition(for route: UserListRoute) -> NavigationTransition { + switch route { + case .home: .push(HomeViewController()) + case .user(let name): .present(UserCoordinator(user: name), animation: .default) + case .logout: .dismiss() + } + } +} +``` + +The builder is a modern convenience, not a requirement — you opt into it per override by adding the attribute. +
+ Trigger routes from a view model that holds a typed router reference: ```swift @@ -154,7 +182,7 @@ struct ChildView: View { } ``` -**Drive SwiftUI state changes from `prepareTransition`** without performing a UIKit transition — use `Transition.withAnimation` or `Transition.withTransaction`: +**Drive SwiftUI state changes from `prepareTransition(for:)`** without performing a UIKit transition — use `Transition.withAnimation` or `Transition.withTransaction`: ```swift class HomeCoordinator: TabBarCoordinator { diff --git a/Scripts/docs.sh b/Scripts/docs.sh index 38b69b09..09a1e78a 100755 --- a/Scripts/docs.sh +++ b/Scripts/docs.sh @@ -1,16 +1,47 @@ #!/bin/sh # Generates static-hosting DocC output into ./Documentation. -# Uses the iOS Simulator SDK and lets the toolchain pick the matching target triple, -# so it runs unchanged on Apple Silicon and Intel Macs and on whatever Xcode is current. +# +# Builds the DocC archive against the iOS SDK via `xcodebuild docbuild` (the +# package depends on UIKit, so a plain SwiftPM host build fails with +# "no such module 'UIKit'"), then transforms it for static hosting. +# +# Pass an optional hosting base path as the first argument (used when publishing +# to GitHub Pages): +# +# Scripts/docs.sh # local / CI validation build +# Scripts/docs.sh XCoordinator # Pages build served under /XCoordinator set -e -o pipefail cd "$(dirname "$0")/.." -swift package \ - --allow-writing-to-directory Documentation \ - generate-documentation \ - --target XCoordinator \ - --output-path Documentation \ - --transform-for-static-hosting +DERIVED_DATA=".build/docs-derived-data" + +HOSTING_BASE_PATH_ARG="" +if [ -n "$1" ]; then + HOSTING_BASE_PATH_ARG="--hosting-base-path $1" +fi + +rm -rf "$DERIVED_DATA" + +xcodebuild docbuild \ + -scheme XCoordinator \ + -destination 'generic/platform=iOS' \ + -derivedDataPath "$DERIVED_DATA" \ + ONLY_ACTIVE_ARCH=YES \ + CODE_SIGNING_ALLOWED=NO \ + OTHER_DOCC_FLAGS="--warnings-as-errors" \ + -quiet + +ARCHIVE=$(find "$DERIVED_DATA" -type d -name 'XCoordinator.doccarchive' | head -n 1) +if [ -z "$ARCHIVE" ]; then + echo "error: could not find XCoordinator.doccarchive under $DERIVED_DATA" >&2 + exit 1 +fi + +rm -rf ./Documentation + +"$(xcrun --find docc)" process-archive transform-for-static-hosting "$ARCHIVE" \ + --output-path ./Documentation \ + $HOSTING_BASE_PATH_ARG diff --git a/Scripts/docs_preview.sh b/Scripts/docs_preview.sh index b6d319a3..ed2f2705 100755 --- a/Scripts/docs_preview.sh +++ b/Scripts/docs_preview.sh @@ -7,7 +7,30 @@ set -e -o pipefail cd "$(dirname "$0")/.." -swift package \ - --disable-sandbox \ - preview-documentation \ - --product XCoordinator +echo "1. Building documentation archive for iOS..." +(./Scripts/docs.sh) + +# Locate the generated archive +DOCC_ARCHIVE=$(find .build/Documentation -type d -name "XCoordinator.doccarchive" | head -n 1) + +if [ -z "$DOCC_ARCHIVE" ]; then + echo "Error: Could not find the generated XCoordinator.doccarchive artifact." + exit 1 +fi + +echo "2. Transforming archive for local static web hosting..." +STATIC_OUT=".build/Documentation/static" +rm -rf "$STATIC_OUT" + +xcrun docc process-archive transform-for-static-hosting "$DOCC_ARCHIVE" \ + --output-path "$STATIC_OUT" + +DOCC_URL=http://localhost:8000/documentation/xcoordinator + +echo "--------------------------------------------------------" +echo "Documentation server running!" +echo "$DOCC_URL" +echo "--------------------------------------------------------" + +# 3. Serve the interactive documentation site +python3 -m http.server --directory "$STATIC_OUT" 8000 diff --git a/Scripts/test.sh b/Scripts/test.sh new file mode 100755 index 00000000..27249a6c --- /dev/null +++ b/Scripts/test.sh @@ -0,0 +1,38 @@ +#!/bin/sh + +# Runs the XCoordinator tests on an iOS Simulator. +# +# The tests exercise real UIKit view-controller transitions, which only work when a +# UIWindowScene exists — something a bare SwiftPM test bundle does not provide. They +# therefore run through the TestHost application (TestHost/XCoordinatorTestHost.xcodeproj), +# which references this package and hosts the tests in Tests/XCoordinatorTests. +# +# An available iPhone simulator is resolved at runtime so this works across Xcode +# versions (which ship different device names) on both local machines and CI. + +set -e -o pipefail + +cd "$(dirname "$0")/.." + +DEVICE_ID=$(xcrun simctl list devices available -j | python3 -c ' +import json, sys +devices = json.load(sys.stdin)["devices"] +candidates = [ + dev["udid"] + for runtime, devs in devices.items() if "iOS" in runtime + for dev in devs if "iPhone" in dev["name"] +] +print(candidates[0] if candidates else "") +') + +if [ -z "$DEVICE_ID" ]; then + echo "error: no available iPhone simulator found" >&2 + exit 1 +fi + +xcodebuild test \ + -project TestHost/XCoordinatorTestHost.xcodeproj \ + -scheme XCoordinatorTestHost \ + -destination "id=$DEVICE_ID" \ + -skipPackagePluginValidation \ + CODE_SIGNING_ALLOWED=NO diff --git a/Sources/XCoordinator/Animations/GestureRecognizerTarget.swift b/Sources/XCoordinator/Animations/GestureRecognizerTarget.swift index b1f92c29..01c4e2bb 100755 --- a/Sources/XCoordinator/Animations/GestureRecognizerTarget.swift +++ b/Sources/XCoordinator/Animations/GestureRecognizerTarget.swift @@ -3,6 +3,7 @@ // XCoordinator // // Created by Paul Kraft on 19.12.18. +// Copyright © 2018 QuickBird Studios. All rights reserved. // import UIKit diff --git a/Sources/XCoordinator/Animations/InterruptibleTransitionAnimation.swift b/Sources/XCoordinator/Animations/InterruptibleTransitionAnimation.swift index fbcb9780..c5fd5f62 100755 --- a/Sources/XCoordinator/Animations/InterruptibleTransitionAnimation.swift +++ b/Sources/XCoordinator/Animations/InterruptibleTransitionAnimation.swift @@ -3,6 +3,7 @@ // XCoordinator // // Created by Paul Kraft on 24.12.18. +// Copyright © 2018 QuickBird Studios. All rights reserved. // import UIKit diff --git a/Sources/XCoordinator/Animations/StaticTransitionAnimation.swift b/Sources/XCoordinator/Animations/StaticTransitionAnimation.swift index 102edab0..8bad66c2 100755 --- a/Sources/XCoordinator/Animations/StaticTransitionAnimation.swift +++ b/Sources/XCoordinator/Animations/StaticTransitionAnimation.swift @@ -38,10 +38,8 @@ open class StaticTransitionAnimation: NSObject, TransitionAnimation { /// /// - Parameters: /// - duration: The total duration of the animation. - /// - performAnimation: A closure performing the animation. - /// - context: - /// From the context, you can access source and destination views and - /// viewControllers and the containerView. + /// - performAnimation: A closure performing the animation. From the closure's `context`, + /// you can access source and destination views and viewControllers and the containerView. /// public init(duration: TimeInterval, performAnimation: @escaping (_ context: UIViewControllerContextTransitioning) -> Void) { self.duration = duration diff --git a/Sources/XCoordinator/Combine/Router+Combine.swift b/Sources/XCoordinator/Combine/Router+Combine.swift index aae73eb9..1e175880 100644 --- a/Sources/XCoordinator/Combine/Router+Combine.swift +++ b/Sources/XCoordinator/Combine/Router+Combine.swift @@ -69,7 +69,7 @@ extension Router { public func contextTriggerPublisher( _ route: RouteType, with options: TransitionOptions = .init(animated: true) - ) -> Future { + ) -> Future { Future { completion in self.contextTrigger(route, with: options) { completion(.success($0)) @@ -101,7 +101,7 @@ extension PublisherExtension where Base: Router { public func contextTrigger( _ route: Base.RouteType, with options: TransitionOptions = .init(animated: true) - ) -> Future { + ) -> Future { base.contextTriggerPublisher(route, with: options) } diff --git a/Sources/XCoordinator/Coordinators/BaseCoordinator.swift b/Sources/XCoordinator/Coordinators/BaseCoordinator.swift index e0ef94d7..f9e7ff86 100755 --- a/Sources/XCoordinator/Coordinators/BaseCoordinator.swift +++ b/Sources/XCoordinator/Coordinators/BaseCoordinator.swift @@ -8,11 +8,6 @@ import UIKit -extension BaseCoordinator { - /// Shortcut for `BaseCoordinator.TransitionType.RootViewController` - public typealias RootViewController = TransitionType.RootViewController -} - /// /// BaseCoordinator can (and is encouraged to) be used as a superclass for any custom implementation of a coordinator. /// @@ -21,7 +16,7 @@ extension BaseCoordinator { /// and `PageCoordinator`. /// @MainActor -open class BaseCoordinator: Coordinator { +open class BaseCoordinator: Coordinator { // MARK: Stored properties @@ -39,9 +34,8 @@ open class BaseCoordinator /// The root view controller of this coordinator's flow. /// - /// The root view controller's concrete type is determined by `TransitionType.RootViewController` — - /// e.g. a `UINavigationController` for a `NavigationCoordinator`. Transitions on this coordinator - /// are performed against this view controller. + /// Its concrete type is the coordinator's `RootViewController` — e.g. a `UINavigationController` + /// for a `NavigationCoordinator`. Transitions on this coordinator are performed against it. public private(set) var rootViewController: RootViewController /// The presentable view controller for this coordinator. Returns ``rootViewController`` by default. @@ -70,15 +64,29 @@ open class BaseCoordinator /// - rootViewController: The root view controller for this coordinator's flow. /// - initialTransition: A transition to perform before the coordinator becomes visible. Pass `nil` to skip. /// - public init(rootViewController: RootViewController, initialTransition: TransitionType?) { + public init(rootViewController: RootViewController, initialTransition: Transition?) { self.rootViewController = rootViewController initialTransition.map(performTransitionAfterWindowAppeared) } + /// + /// Creates a coordinator and performs an initial transition — described with the transition builder — + /// before the coordinator is made visible. + /// + /// - Parameters: + /// - rootViewController: The root view controller for this coordinator's flow. + /// - initialTransition: A transition-builder closure describing the transition to perform. + /// + public init(rootViewController: RootViewController, + @TransitionBuilder initialTransition: () -> Transition) { + self.rootViewController = rootViewController + performTransitionAfterWindowAppeared(initialTransition()) + } + // MARK: Open methods public func router(for route: R.Type) -> (any Router)? { - self as? BaseCoordinator + self as? BaseCoordinator } open func presented(from presentable: (any Presentable)?) {} @@ -100,7 +108,7 @@ open class BaseCoordinator /// /// This method prepares transitions for routes. - /// Override this method to define transitions for triggered routes. + /// Override this method to define transitions for triggered routes, using the transition builder DSL. /// /// - Parameter route: /// The triggered route for which a transition is to be prepared. @@ -108,10 +116,11 @@ open class BaseCoordinator /// - Returns: /// The prepared transition. /// - open func prepareTransition(for route: RouteType) -> TransitionType { + @TransitionBuilder + open func prepareTransition(for route: RouteType) -> Transition { fatalError("Please override the \(#function) method.") } - + public func registerParent(_ presentable: any Presentable & AnyObject) { let previous = removeParentChildren removeParentChildren = { [weak presentable] in @@ -122,7 +131,7 @@ open class BaseCoordinator // MARK: Private methods - private func performTransitionAfterWindowAppeared(_ transition: TransitionType) { + private func performTransitionAfterWindowAppeared(_ transition: Transition) { guard !UIApplication.shared.windows.contains(where: { $0.isKeyWindow }) else { return performTransition(transition, with: TransitionOptions(animated: false)) } @@ -191,12 +200,10 @@ extension BaseCoordinator { /// - recognizer: /// The gesture recognizer to be used to update the interactive transition. /// - handler: - /// The handler to update the interaction controller of the animation generated by the given `transition` closure. - /// - handlerRecognizer: - /// The gestureRecognizer with which the handler has been registered. - /// - transition: - /// The closure to perform the transition. It returns the transition animation to control the interaction controller of. - /// `TransitionAnimation.start()` is automatically called. + /// The handler to update the interaction controller of the animation generated by the transition closure. + /// It receives the gestureRecognizer with which the handler has been registered, and a closure to perform + /// the transition — which returns the transition animation to control the interaction controller of + /// (`TransitionAnimation.start()` is automatically called). /// - completion: /// The closure to be called whenever the transition completes. /// Hint: Might be called multiple times but only once per performing the transition. diff --git a/Sources/XCoordinator/Coordinators/BasicCoordinator.swift b/Sources/XCoordinator/Coordinators/BasicCoordinator.swift index d6a4e5d8..3acd652e 100755 --- a/Sources/XCoordinator/Coordinators/BasicCoordinator.swift +++ b/Sources/XCoordinator/Coordinators/BasicCoordinator.swift @@ -6,22 +6,24 @@ // Copyright © 2018 QuickBird Studios. All rights reserved. // +import UIKit + /// A BasicCoordinator with a `UINavigationController` as its rootViewController. -public typealias BasicNavigationCoordinator = BasicCoordinator +public typealias BasicNavigationCoordinator = BasicCoordinator /// A BasicCoordinator with a `UIViewController` as its rootViewController. -public typealias BasicViewCoordinator = BasicCoordinator +public typealias BasicViewCoordinator = BasicCoordinator /// A BasicCoordinator with a `UITabBarController` as its rootViewController. -public typealias BasicTabBarCoordinator = BasicCoordinator +public typealias BasicTabBarCoordinator = BasicCoordinator /// /// BasicCoordinator is a coordinator class that can be used without subclassing. /// /// Although subclassing of coordinators is encouraged for more complex cases, a `BasicCoordinator` can easily -/// be created by only providing a `prepareTransition` closure, an `initialRoute` and an `initialLoadingType`. +/// be created by only providing a `prepare` closure, an `initialRoute` and an `initialLoadingType`. /// -open class BasicCoordinator: BaseCoordinator { +open class BasicCoordinator: BaseCoordinator { // MARK: Nested types @@ -42,27 +44,60 @@ open class BasicCoordinator TransitionType)? + private let prepareClosure: ((RouteType) -> Transition)? // MARK: Initialization /// - /// Creates a BasicCoordinator. + /// Creates a BasicCoordinator whose transitions are defined inline with the transition builder. + /// + /// The `prepare` closure is a `@TransitionBuilder`, so its body lists the same `Transition.…` + /// factories as an overridden `prepareTransition(for:)`: + /// + /// ```swift + /// BasicNavigationCoordinator(rootViewController: .init(), initialRoute: .home) { route in + /// switch route { + /// case .home: Transition.show(HomeViewController()) + /// case .detail: Transition.push(DetailViewController()) + /// } + /// } + /// ``` /// /// - Parameters: /// - rootViewController: The view controller that hosts the coordinator's transitions. /// - initialRoute: If specified, this route is triggered depending on `initialLoadingType`. /// - initialLoadingType: Determines when `initialRoute` is triggered. See ``InitialLoadingType``. - /// - prepareTransition: A closure that returns a transition for each triggered route. - /// Make sure to subclass and override `prepareTransition(for:)` if you pass `nil` here. + /// - prepare: A transition-builder closure returning the transition for each triggered route. /// public init(rootViewController: RootViewController, initialRoute: RouteType? = nil, initialLoadingType: InitialLoadingType = .presented, - prepareTransition: ((RouteType) -> TransitionType)?) { + @TransitionBuilder prepare: @escaping (RouteType) -> Transition) { + self.initialRoute = initialRoute + self.initialLoadingType = initialLoadingType + self.prepareClosure = prepare + + if initialLoadingType == .immediately { + super.init(rootViewController: rootViewController, initialRoute: initialRoute) + } else { + super.init(rootViewController: rootViewController, initialRoute: nil) + } + } + + /// + /// Creates a BasicCoordinator that defines its transitions by overriding ``prepareTransition(for:)`` in a subclass. + /// + /// - Parameters: + /// - rootViewController: The view controller that hosts the coordinator's transitions. + /// - initialRoute: If specified, this route is triggered depending on `initialLoadingType`. + /// - initialLoadingType: Determines when `initialRoute` is triggered. See ``InitialLoadingType``. + /// + public init(rootViewController: RootViewController, + initialRoute: RouteType? = nil, + initialLoadingType: InitialLoadingType = .presented) { self.initialRoute = initialRoute self.initialLoadingType = initialLoadingType - self.prepareTransition = prepareTransition + self.prepareClosure = nil if initialLoadingType == .immediately { super.init(rootViewController: rootViewController, initialRoute: initialRoute) @@ -90,11 +125,11 @@ open class BasicCoordinator TransitionType { - if let prepareTransition = prepareTransition { - return prepareTransition(route) + open override func prepareTransition(for route: RouteType) -> Transition { + if let prepareClosure = prepareClosure { + return prepareClosure(route) } else { - fatalError("Either pass a \(#function) closure to the initializer or override this method.") + fatalError("Either pass a `prepare` closure to the initializer or override this method.") } } } diff --git a/Sources/XCoordinator/Coordinators/Coordinator.swift b/Sources/XCoordinator/Coordinators/Coordinator.swift index b9d0a59e..bf2405f9 100755 --- a/Sources/XCoordinator/Coordinators/Coordinator.swift +++ b/Sources/XCoordinator/Coordinators/Coordinator.swift @@ -12,20 +12,27 @@ import UIKit public typealias PresentationHandler = () -> Void /// The completion handler for transitions, which also provides the context information about the transition. -public typealias ContextPresentationHandler = (any TransitionProtocol) -> Void +public typealias ContextPresentationHandler = (any TransitionContext) -> Void /// /// Coordinator is the protocol every coordinator conforms to. /// -/// It requires an object to be able to trigger routes and perform transitions. -/// This connection is created using the `prepareTransition(for:)` method. +/// It owns a `rootViewController`, prepares a ``Transition`` for each triggered route via ``prepareTransition(for:)``, +/// and performs those transitions. Every transition is a `Transition`; the concrete +/// root-view-controller type (e.g. `UINavigationController`) determines which transitions are available. /// @MainActor -public protocol Coordinator: Router, TransitionPerformer { +public protocol Coordinator: Router { + + /// The type of the rootViewController on which transitions are performed. + associatedtype RootViewController: UIViewController + + /// The rootViewController on which transitions are performed. + var rootViewController: RootViewController { get } /// /// This method prepares transitions for routes. - /// It especially decides, which transitions are performed for the triggered routes. + /// It especially decides which transition is performed for a triggered route. /// /// - Parameter route: /// The triggered route for which a transition is to be prepared. @@ -33,8 +40,24 @@ public protocol Coordinator: Router, TransitionPerfor /// - Returns: /// The prepared transition. /// - func prepareTransition(for route: RouteType) -> TransitionType - + @TransitionBuilder + func prepareTransition(for route: RouteType) -> Transition + + /// + /// Perform a transition. + /// + /// - Warning: + /// Do not use this method directly. Instead, trigger a route on your coordinator wherever possible. + /// + /// - Parameters: + /// - transition: The transition to be performed. + /// - options: The options on how to perform the transition, including the option to enable/disable animations. + /// - completion: The completion handler called once the transition has finished. + /// + func performTransition(_ transition: Transition, + with options: TransitionOptions, + completion: PresentationHandler?) + /// /// This method adds a child to a coordinator's children. /// @@ -42,7 +65,7 @@ public protocol Coordinator: Router, TransitionPerfor /// The child to be added. /// func addChild(_ presentable: any Presentable) - + /// /// This method removes a child to a coordinator's children. /// @@ -50,19 +73,11 @@ public protocol Coordinator: Router, TransitionPerfor /// The child to be removed. /// func removeChild(_ presentable: any Presentable) - + /// This method removes all children that are no longer in the view hierarchy. func removeChildrenIfNeeded() } -// MARK: - Typealiases - -extension Coordinator { - - /// Shortcut for Coordinator.TransitionType.RootViewController - public typealias RootViewController = TransitionType.RootViewController -} - // MARK: - Presentable extension Coordinator { @@ -76,9 +91,9 @@ extension Coordinator { // MARK: - Default implementations extension Coordinator where Self: AnyObject { - + public func presented(from presentable: (any Presentable)?) {} - + public func childTransitionCompleted() { removeChildrenIfNeeded() } @@ -99,11 +114,11 @@ extension Coordinator where Self: AnyObject { /// - Returns: /// A transition combining the transitions of the specified routes. /// - public func chain(routes: [RouteType]) -> TransitionType { + public func chain(routes: [RouteType]) -> Transition { .multiple(routes.map(prepareTransition)) } - public func performTransition(_ transition: TransitionType, + public func performTransition(_ transition: Transition, with options: TransitionOptions, completion: PresentationHandler? = nil) { #if canImport(SwiftUI) @@ -119,4 +134,21 @@ extension Coordinator where Self: AnyObject { completion?() } } + + /// + /// Performs a transition described with the transition builder. + /// + /// - Warning: + /// Do not use this method directly. Instead, trigger a route on your coordinator wherever possible. + /// + /// - Parameters: + /// - options: The options on how to perform the transition. Defaults to animated. + /// - completion: The completion handler called once the transition has finished. + /// - transition: A transition-builder closure describing the transition to perform. + /// + public func performTransition(with options: TransitionOptions = TransitionOptions(animated: true), + completion: PresentationHandler? = nil, + @TransitionBuilder _ transition: () -> Transition) { + performTransition(transition(), with: options, completion: completion) + } } diff --git a/Sources/XCoordinator/Coordinators/Router.swift b/Sources/XCoordinator/Coordinators/Router.swift index eed76784..61c57a26 100755 --- a/Sources/XCoordinator/Coordinators/Router.swift +++ b/Sources/XCoordinator/Coordinators/Router.swift @@ -1,5 +1,5 @@ // -// RouteTrigger.swift +// Router.swift // XCoordinator // // Created by Paul Kraft on 28.07.18. @@ -11,7 +11,7 @@ import Foundation /// /// The Router protocol abstracts a coordinator down to its route-triggering capability. /// -/// In contrast to ``Coordinator``, `Router` does not specify a `TransitionType` and can therefore be +/// In contrast to ``Coordinator``, `Router` does not specify a `RootViewController` and can therefore be /// used as `any Router` to expose only the trigger surface to view models and views. /// Pair the existential with the ARC qualifier that matches the relationship — `unowned`/`weak` for /// child holding parent, `strong` for ownership. @@ -115,7 +115,7 @@ extension Router { /// /// Triggers a route and returns the resulting transition context. /// - /// Useful for deep linking. Prefer ``trigger(_:with:)`` if the context is not needed. + /// Useful for deep linking. Prefer `trigger(_:with:)` if the context is not needed. /// /// - Parameters: /// - route: The route to be triggered. @@ -123,7 +123,7 @@ extension Router { /// /// - Returns: The transition context of the performed transition(s). /// - @MainActor public func contextTrigger(_ route: RouteType, with options: TransitionOptions) async -> any TransitionProtocol { + @MainActor public func contextTrigger(_ route: RouteType, with options: TransitionOptions) async -> any TransitionContext { await withCheckedContinuation { continuation in contextTrigger(route, with: options) { context in continuation.resume(returning: context) diff --git a/Sources/XCoordinator/General/DeepLinking.swift b/Sources/XCoordinator/General/DeepLinking.swift index a67b14da..36d8b939 100755 --- a/Sources/XCoordinator/General/DeepLinking.swift +++ b/Sources/XCoordinator/General/DeepLinking.swift @@ -6,6 +6,8 @@ // Copyright © 2018 QuickBird Studios. All rights reserved. // +import UIKit + // MARK: - Coordinator + DeepLinking extension Coordinator where Self: AnyObject { @@ -25,8 +27,8 @@ extension Coordinator where Self: AnyObject { /// Keep in mind that changes in the app's structure and changes of transitions /// behind the given routes can lead to runtime errors and, therefore, crashes of your app. /// - public func deepLink(_ route: RouteType, _ remainingRoutes: S) - -> Transition where S.Element == Route, TransitionType == Transition { + public func deepLink(_ route: RouteType, _ remainingRoutes: S) + -> Transition where S.Element == Route { .deepLink(with: self, route, array: Array(remainingRoutes)) } @@ -43,8 +45,8 @@ extension Coordinator where Self: AnyObject { /// Keep in mind that changes in the app's structure and changes of transitions /// behind the given routes can lead to runtime errors and, therefore, crashes of your app. /// - public func deepLink(_ route: RouteType, _ remainingRoutes: Route...) - -> Transition where TransitionType == Transition { + public func deepLink(_ route: RouteType, _ remainingRoutes: Route...) + -> Transition { .deepLink(with: self, route, array: remainingRoutes) } } diff --git a/Sources/XCoordinator/Navigation/NavigationAnimationDelegate.swift b/Sources/XCoordinator/Navigation/NavigationAnimationDelegate.swift index 29bf4c1e..b8f32193 100755 --- a/Sources/XCoordinator/Navigation/NavigationAnimationDelegate.swift +++ b/Sources/XCoordinator/Navigation/NavigationAnimationDelegate.swift @@ -127,8 +127,8 @@ extension NavigationAnimationDelegate: UINavigationControllerDelegate { /// /// - Parameters: /// - navigationController: The delegate owner. - /// - operation: The operation being executed. Possible values are push, pop or none. /// - viewController: The target view controller. + /// - animated: Whether the transition was animated. /// open func navigationController(_ navigationController: UINavigationController, didShow viewController: UIViewController, animated: Bool) { @@ -145,8 +145,8 @@ extension NavigationAnimationDelegate: UINavigationControllerDelegate { /// /// - Parameters: /// - navigationController: The delegate owner. - /// - operation: The operation being executed. Possible values are push, pop or none. /// - viewController: The view controller to be shown. + /// - animated: Whether the transition is animated. /// open func navigationController(_ navigationController: UINavigationController, willShow viewController: UIViewController, diff --git a/Sources/XCoordinator/Navigation/NavigationCoordinator.swift b/Sources/XCoordinator/Navigation/NavigationCoordinator.swift index 2c89db99..e91317d6 100755 --- a/Sources/XCoordinator/Navigation/NavigationCoordinator.swift +++ b/Sources/XCoordinator/Navigation/NavigationCoordinator.swift @@ -15,7 +15,7 @@ import UIKit /// NavigationCoordinator especially ensures that transition animations are called, /// which would not be the case when creating a `BaseCoordinator`. /// -open class NavigationCoordinator: BaseCoordinator { +open class NavigationCoordinator: BaseCoordinator { // MARK: Stored properties @@ -77,4 +77,35 @@ open class NavigationCoordinator: BaseCoordinator initialTransition: () -> NavigationTransition) { + if rootViewController.delegate == nil { + rootViewController.delegate = animationDelegate + } + super.init(rootViewController: rootViewController, initialTransition: initialTransition()) + animationDelegate.presentable = self + } + } diff --git a/Sources/XCoordinator/Navigation/UINavigationController+Transition.swift b/Sources/XCoordinator/Navigation/UINavigationController+Transition.swift old mode 100755 new mode 100644 index d9a68c0b..068ac629 --- a/Sources/XCoordinator/Navigation/UINavigationController+Transition.swift +++ b/Sources/XCoordinator/Navigation/UINavigationController+Transition.swift @@ -9,7 +9,7 @@ import UIKit extension UINavigationController { - + func push(_ viewController: UIViewController, with options: TransitionOptions, animation: Animation?, @@ -25,22 +25,17 @@ extension UINavigationController { To set another delegate of a rootViewController in a NavigationCoordinator, have a look at `NavigationCoordinator.delegate`. """) - CATransaction.begin() - CATransaction.setCompletionBlock { [self] in - if let transitionCoordinator { - transitionCoordinator.animate(alongsideTransition: nil) { _ in - completion?() - } - } else { - completion?() - } - } - autoreleasepool { pushViewController(viewController, animated: options.animated) } - CATransaction.commit() + if let transitionCoordinator { + transitionCoordinator.animate(alongsideTransition: nil) { _ in + completion?() + } + } else { + completion?() + } } func pop(toRoot: Bool, with options: TransitionOptions, animation: Animation?, completion: PresentationHandler?) { @@ -125,5 +120,5 @@ extension UINavigationController { CATransaction.commit() } - + } diff --git a/Sources/XCoordinator/Page/PageCoordinator.swift b/Sources/XCoordinator/Page/PageCoordinator.swift index 12a88477..1e86b90d 100755 --- a/Sources/XCoordinator/Page/PageCoordinator.swift +++ b/Sources/XCoordinator/Page/PageCoordinator.swift @@ -14,7 +14,7 @@ import UIKit /// - Note: /// PageCoordinator sets the dataSource of the rootViewController to reflect the parameters in the initializer. /// -open class PageCoordinator: BaseCoordinator { +open class PageCoordinator: BaseCoordinator { // MARK: Stored properties @@ -27,6 +27,11 @@ open class PageCoordinator: BaseCoordinator Transition { let presentables = [first, second].compactMap { $0 } - return Transition(presentables: presentables, - animationInUse: nil - ) { rootViewController, options, completion in - rootViewController.set(presentables.map { $0.viewController }, - direction: direction, - with: options - ) { + return Transition(presentables: presentables, animationInUse: nil) { rootViewController, options, completion in + let viewControllers: [UIViewController] = presentables.map { $0.viewController } + rootViewController.isDoubleSided = viewControllers.count > 1 + + // `UIPageViewController.setViewControllers(_:direction:animated:completion:)` skips its completion + // block when asked to display the pages it is already showing (a long-standing UIKit quirk). + // `deepLink` chains the next route inside this completion, so short-circuit the no-op case and + // invoke the completion ourselves to keep chained transitions flowing. `presented(from:)` already + // fired when these pages were first set, so it is not repeated here. + guard rootViewController.viewControllers != viewControllers else { + completion?() + return + } + + rootViewController.setViewControllers( + viewControllers, + direction: direction, + animated: options.animated + ) { _ in presentables.forEach { $0.presented(from: rootViewController) } completion?() } @@ -54,4 +66,5 @@ extension Transition where RootViewController: UIPageViewController { CATransaction.commit() } } + } diff --git a/Sources/XCoordinator/Page/UIPageViewController+Transition.swift b/Sources/XCoordinator/Page/UIPageViewController+Transition.swift deleted file mode 100755 index 7f13161f..00000000 --- a/Sources/XCoordinator/Page/UIPageViewController+Transition.swift +++ /dev/null @@ -1,24 +0,0 @@ -// -// UIPageViewController+Transition.swift -// XCoordinator -// -// Created by Paul Kraft on 30.07.18. -// Copyright © 2018 QuickBird Studios. All rights reserved. -// - -import UIKit - -extension UIPageViewController { - func set(_ viewControllers: [UIViewController], - direction: UIPageViewController.NavigationDirection, - with options: TransitionOptions, - completion: PresentationHandler?) { - isDoubleSided = viewControllers.count > 1 - setViewControllers( - viewControllers, - direction: direction, - animated: options.animated, - completion: { _ in completion?() } - ) - } -} diff --git a/Sources/XCoordinator/Split/SplitCoordinator.swift b/Sources/XCoordinator/Split/SplitCoordinator.swift index 187f0b1b..169d95d9 100755 --- a/Sources/XCoordinator/Split/SplitCoordinator.swift +++ b/Sources/XCoordinator/Split/SplitCoordinator.swift @@ -15,7 +15,7 @@ import UIKit /// You can use all `SplitTransitions` and get an initializer to set a master and /// (optional) detail presentable. /// -open class SplitCoordinator: BaseCoordinator { +open class SplitCoordinator: BaseCoordinator { // MARK: Initialization @@ -29,6 +29,27 @@ open class SplitCoordinator: BaseCoordinator initialTransition: () -> SplitTransition) { + super.init(rootViewController: rootViewController, initialTransition: initialTransition()) + } + /// /// Creates a SplitCoordinator and sets the specified presentables as the split controller's view controllers. /// diff --git a/Sources/XCoordinator/Split/SplitTransition.swift b/Sources/XCoordinator/Split/SplitTransition.swift index c28f8e65..6c2371cd 100755 --- a/Sources/XCoordinator/Split/SplitTransition.swift +++ b/Sources/XCoordinator/Split/SplitTransition.swift @@ -1,5 +1,5 @@ // -// UISplitViewController+Transition.swift +// SplitTransition.swift // XCoordinator // // Created by Paul Kraft on 10.01.19. diff --git a/Sources/XCoordinator/SwiftUI/Representable.swift b/Sources/XCoordinator/SwiftUI/Representable.swift index 57f422d5..850d10c2 100644 --- a/Sources/XCoordinator/SwiftUI/Representable.swift +++ b/Sources/XCoordinator/SwiftUI/Representable.swift @@ -3,6 +3,7 @@ // XCoordinator // // Created by Paul Johannes Kraft (QB) on 15.05.25. +// Copyright © 2018 QuickBird Studios. All rights reserved. // #if canImport(SwiftUI) diff --git a/Sources/XCoordinator/SwiftUI/RepresentableContext.swift b/Sources/XCoordinator/SwiftUI/RepresentableContext.swift index 5430de07..49dc025e 100644 --- a/Sources/XCoordinator/SwiftUI/RepresentableContext.swift +++ b/Sources/XCoordinator/SwiftUI/RepresentableContext.swift @@ -3,6 +3,7 @@ // XCoordinator // // Created by Paul Johannes Kraft (QB) on 20.05.25. +// Copyright © 2018 QuickBird Studios. All rights reserved. // #if canImport(SwiftUI) diff --git a/Sources/XCoordinator/SwiftUI/RoutingContextProvider.swift b/Sources/XCoordinator/SwiftUI/RoutingContextProvider.swift index b5eb2799..4df2d884 100644 --- a/Sources/XCoordinator/SwiftUI/RoutingContextProvider.swift +++ b/Sources/XCoordinator/SwiftUI/RoutingContextProvider.swift @@ -3,6 +3,7 @@ // XCoordinator // // Created by Paul Kraft on 09.05.2025. +// Copyright © 2018 QuickBird Studios. All rights reserved. // #if canImport(SwiftUI) diff --git a/Sources/XCoordinator/SwiftUI/Transition+SwiftUI.swift b/Sources/XCoordinator/SwiftUI/Transition+SwiftUI.swift index f403b749..22230bcd 100644 --- a/Sources/XCoordinator/SwiftUI/Transition+SwiftUI.swift +++ b/Sources/XCoordinator/SwiftUI/Transition+SwiftUI.swift @@ -3,6 +3,7 @@ // XCoordinator // // Created by Paul Johannes Kraft (QB) on 12.05.25. +// Copyright © 2018 QuickBird Studios. All rights reserved. // #if canImport(SwiftUI) @@ -34,7 +35,7 @@ extension Transition { ) -> Transition { return Transition( presentables: [], - animationInUse: nil, + animationInUse: nil ) { _, options, completion in if #available(iOS 17, tvOS 17, *) { SwiftUI.withAnimation( @@ -78,7 +79,7 @@ extension Transition { ) -> Transition { return Transition( presentables: [], - animationInUse: nil, + animationInUse: nil ) { _, options, completion in var transaction = transaction() transaction.disablesAnimations = !options.animated diff --git a/Sources/XCoordinator/SwiftUI/View+Router.swift b/Sources/XCoordinator/SwiftUI/View+Router.swift index 30308d44..9beb6228 100644 --- a/Sources/XCoordinator/SwiftUI/View+Router.swift +++ b/Sources/XCoordinator/SwiftUI/View+Router.swift @@ -3,6 +3,7 @@ // XCoordinator // // Created by Paul Johannes Kraft (QB) on 12.05.25. +// Copyright © 2018 QuickBird Studios. All rights reserved. // #if canImport(SwiftUI) diff --git a/Sources/XCoordinator/SwiftUI/View+Trigger.swift b/Sources/XCoordinator/SwiftUI/View+Trigger.swift index 65ce1681..09de8148 100644 --- a/Sources/XCoordinator/SwiftUI/View+Trigger.swift +++ b/Sources/XCoordinator/SwiftUI/View+Trigger.swift @@ -1,8 +1,9 @@ // -// Router+Binding.swift +// View+Trigger.swift // XCoordinator // // Created by Paul Kraft on 09.05.2025. +// Copyright © 2018 QuickBird Studios. All rights reserved. // #if canImport(SwiftUI) diff --git a/Sources/XCoordinator/SwiftUI/WrappedRouter.swift b/Sources/XCoordinator/SwiftUI/WrappedRouter.swift index fa6bd194..a13b333d 100644 --- a/Sources/XCoordinator/SwiftUI/WrappedRouter.swift +++ b/Sources/XCoordinator/SwiftUI/WrappedRouter.swift @@ -3,6 +3,7 @@ // XCoordinator // // Created by Paul Johannes Kraft (QB) on 20.05.25. +// Copyright © 2018 QuickBird Studios. All rights reserved. // #if canImport(SwiftUI) diff --git a/Sources/XCoordinator/Tab/TabBarAnimationDelegate.swift b/Sources/XCoordinator/Tab/TabBarAnimationDelegate.swift index 1f10049a..5c6dd598 100755 --- a/Sources/XCoordinator/Tab/TabBarAnimationDelegate.swift +++ b/Sources/XCoordinator/Tab/TabBarAnimationDelegate.swift @@ -128,6 +128,7 @@ extension TabBarAnimationDelegate: UITabBarControllerDelegate { /// - Parameters: /// - tabBarController: The delegate owner. /// - viewControllers: The source viewControllers. + /// - changed: Whether the order of the viewControllers changed. /// open func tabBarController(_ tabBarController: UITabBarController, didEndCustomizing viewControllers: [UIViewController], changed: Bool) { @@ -143,6 +144,7 @@ extension TabBarAnimationDelegate: UITabBarControllerDelegate { /// - Parameters: /// - tabBarController: The delegate owner. /// - viewControllers: The source viewControllers. + /// - changed: Whether the order of the viewControllers changed. /// open func tabBarController(_ tabBarController: UITabBarController, willEndCustomizing viewControllers: [UIViewController], changed: Bool) { diff --git a/Sources/XCoordinator/Tab/TabBarCoordinator.swift b/Sources/XCoordinator/Tab/TabBarCoordinator.swift index 1d227e80..085e1358 100755 --- a/Sources/XCoordinator/Tab/TabBarCoordinator.swift +++ b/Sources/XCoordinator/Tab/TabBarCoordinator.swift @@ -19,7 +19,7 @@ import UIKit /// Use a TabBarCoordinator to coordinate a flow where a `UITabbarController` serves as a rootViewController. /// With a TabBarCoordinator, you get access to all tabbarController-related transitions. /// -open class TabBarCoordinator: BaseCoordinator { +open class TabBarCoordinator: BaseCoordinator { // MARK: Stored properties @@ -65,6 +65,35 @@ open class TabBarCoordinator: BaseCoordinator initialTransition: () -> TabBarTransition) { + if rootViewController.delegate == nil { + rootViewController.delegate = animationDelegate + } + super.init(rootViewController: rootViewController, initialTransition: initialTransition()) + } + /// /// Creates a TabBarCoordinator with a specified set of tabs. /// diff --git a/Sources/XCoordinator/Tab/UITabBarController+Transition.swift b/Sources/XCoordinator/Tab/UITabBarController+Transition.swift old mode 100755 new mode 100644 index a918f5b4..810c149d --- a/Sources/XCoordinator/Tab/UITabBarController+Transition.swift +++ b/Sources/XCoordinator/Tab/UITabBarController+Transition.swift @@ -9,7 +9,7 @@ import UIKit extension UITabBarController { - + func set(_ viewControllers: [UIViewController], with options: TransitionOptions, animation: Animation?, @@ -19,7 +19,7 @@ extension UITabBarController { viewControllers.first?.transitioningDelegate = animation } assert(animation == nil || animationDelegate != nil, """ - Animations do not work, if the navigation controller's delegate is not a NavigationAnimationDelegate. + Animations do not work, if the tab bar controller's delegate is not a TabBarAnimationDelegate. This assertion might fail, if the rootViewController specified in the TabBarCoordinator's initializer already had a delegate when initializing the TabBarCoordinator. To set another delegate of a rootViewController in a TabBarCoordinator, have a look at `TabBarCoordinator.delegate`. @@ -44,7 +44,7 @@ extension UITabBarController { viewController.transitioningDelegate = animation } assert(animation == nil || animationDelegate != nil, """ - Animations do not work, if the navigation controller's delegate is not a NavigationAnimationDelegate. + Animations do not work, if the tab bar controller's delegate is not a TabBarAnimationDelegate. This assertion might fail, if the rootViewController specified in the TabBarCoordinator's initializer already had a delegate when initializing the TabBarCoordinator. To set another delegate of a rootViewController in a TabBarCoordinator, have a look at `TabBarCoordinator.delegate`. @@ -62,11 +62,19 @@ extension UITabBarController { func select(index: Int, with options: TransitionOptions, animation: Animation?, completion: PresentationHandler?) { + guard index >= 0, index < (viewControllers?.count ?? 0) else { + assertionFailure(""" + select(index:): index \(index) is out of bounds (\(viewControllers?.count ?? 0) tabs). Ignoring the transition. + """) + completion?() + return + } + if let animation = animation { viewControllers?[index].transitioningDelegate = animation } assert(animation == nil || animationDelegate != nil, """ - Animations do not work, if the navigation controller's delegate is not a NavigationAnimationDelegate. + Animations do not work, if the tab bar controller's delegate is not a TabBarAnimationDelegate. This assertion might fail, if the rootViewController specified in the TabBarCoordinator's initializer already had a delegate when initializing the TabBarCoordinator. To set another delegate of a rootViewController in a TabBarCoordinator, have a look at `TabBarCoordinator.delegate`. @@ -81,5 +89,5 @@ extension UITabBarController { CATransaction.commit() } - + } diff --git a/Sources/XCoordinator/Transitions/Transition.swift b/Sources/XCoordinator/Transitions/Transition.swift index 4fccae8f..606e1811 100755 --- a/Sources/XCoordinator/Transitions/Transition.swift +++ b/Sources/XCoordinator/Transitions/Transition.swift @@ -9,7 +9,7 @@ import UIKit /// -/// This struct represents the common implementation of the `TransitionProtocol`. +/// This struct is the single transition type used by every coordinator. /// It is used in every of the provided `BaseCoordinator` subclasses and provides all transitions implemented in XCoordinator. /// /// `Transitions` are defined by a `Transition.Perform` closure. @@ -23,7 +23,7 @@ import UIKit /// Make sure to specify the `RootViewController` type of the `TransitionType` of your coordinator as precise as possible /// to get all already available transitions. /// -public struct Transition: TransitionProtocol { +public struct Transition: TransitionContext { // MARK: Typealias diff --git a/Sources/XCoordinator/Transitions/TransitionBuilder.swift b/Sources/XCoordinator/Transitions/TransitionBuilder.swift new file mode 100644 index 00000000..9f12938d --- /dev/null +++ b/Sources/XCoordinator/Transitions/TransitionBuilder.swift @@ -0,0 +1,73 @@ +// +// TransitionBuilder.swift +// XCoordinator +// +// Created by Paul Kraft on 08.05.23. +// Copyright © 2018 QuickBird Studios. All rights reserved. +// + +import UIKit + +/// +/// A result builder that assembles a single ``Transition`` from one or more `Transition` values. +/// +/// Use it to describe a coordinator's transitions inline — e.g. in `prepareTransition(for:)` or a +/// `BasicCoordinator`'s `prepare` closure — by listing the `Transition.…` factories that apply to the +/// coordinator's root view controller: +/// +/// ```swift +/// override func prepareTransition(for route: AppRoute) -> NavigationTransition { +/// switch route { +/// case .home: Transition.push(HomeViewController()) +/// case .detail(let id): Transition.push(DetailViewController(id: id)) +/// case .ignored: Transition.none() +/// } +/// } +/// ``` +/// +/// Multiple statements are chained with ``Transition/multiple(_:)-(Collection)`` and +/// performed strictly in order. An empty builder block is a compile-time error — use ``Transition/none()`` +/// to express an intentional no-op. +/// +@MainActor +@resultBuilder +public enum TransitionBuilder { + + public static func buildExpression(_ expression: Transition) -> Transition { + expression + } + + public static func buildExpression(_ expression: Never) -> Transition {} + + public static func buildEither(first component: Transition) -> Transition { + component + } + + public static func buildEither(second component: Transition) -> Transition { + component + } + + public static func buildOptional(_ component: Transition?) -> Transition { + component ?? .none() + } + + public static func buildLimitedAvailability(_ component: Transition) -> Transition { + component + } + + public static func buildBlock( + _ first: Transition, + _ rest: Transition... + ) -> Transition { + rest.isEmpty ? first : .multiple([first] + rest) + } + + public static func buildArray(_ components: [Transition]) -> Transition { + .multiple(components) + } + + public static func buildFinalResult(_ component: Transition) -> Transition { + component + } + +} diff --git a/Sources/XCoordinator/Transitions/TransitionContext.swift b/Sources/XCoordinator/Transitions/TransitionContext.swift new file mode 100644 index 00000000..8fd32a40 --- /dev/null +++ b/Sources/XCoordinator/Transitions/TransitionContext.swift @@ -0,0 +1,22 @@ +// +// TransitionContext.swift +// XCoordinator +// +// Created by Paul Kraft on 13.09.18. +// Copyright © 2018 QuickBird Studios. All rights reserved. +// + +/// +/// A non-generic view of a performed transition, used where the concrete root-view-controller type +/// is not known — e.g. on `Router`, whose only knowledge is its `RouteType`. +/// +/// The context-based `trigger` variants (`contextTrigger`, the async overload, and the Combine/RxSwift +/// wrappers) hand back the performed transition as `any TransitionContext`. Deep linking +/// (`General/DeepLinking.swift`) uses ``presentables`` to walk the resulting coordinator tree. +/// +@MainActor +public protocol TransitionContext { + + /// The presentables introduced into the view hierarchy by the transition. + var presentables: [any Presentable] { get } +} diff --git a/Sources/XCoordinator/Transitions/TransitionPerformer.swift b/Sources/XCoordinator/Transitions/TransitionPerformer.swift deleted file mode 100755 index b1032890..00000000 --- a/Sources/XCoordinator/Transitions/TransitionPerformer.swift +++ /dev/null @@ -1,38 +0,0 @@ -// -// TransitionPerformer.swift -// XCoordinator -// -// Created by Paul Kraft on 13.09.18. -// Copyright © 2018 QuickBird Studios. All rights reserved. -// - -/// -/// The TransitionPerformer protocol is used to abstract the route-type specific characteristics of a Coordinator. -/// It keeps type information about its transition performing capabilities. -/// -@MainActor -public protocol TransitionPerformer: Presentable { - - /// The type of transitions that can be executed on the rootViewController. - associatedtype TransitionType: TransitionProtocol - - /// The rootViewController on which transitions are performed. - var rootViewController: TransitionType.RootViewController { get } - - /// - /// Perform a transition. - /// - /// - Warning: - /// Do not use this method directly, but instead try to use the `trigger` - /// method of your coordinator instead wherever possible. - /// - /// - Parameters: - /// - transition: The transition to be performed. - /// - options: The options on how to perform the transition, including the option to enable/disable animations. - /// - completion: The completion handler called once a transition has finished. - /// - func performTransition(_ transition: TransitionType, - with options: TransitionOptions, - completion: PresentationHandler?) - -} diff --git a/Sources/XCoordinator/Transitions/TransitionProtocol.swift b/Sources/XCoordinator/Transitions/TransitionProtocol.swift deleted file mode 100755 index f12ddbf0..00000000 --- a/Sources/XCoordinator/Transitions/TransitionProtocol.swift +++ /dev/null @@ -1,69 +0,0 @@ -// -// TransitionProtocol.swift -// XCoordinator -// -// Created by Paul Kraft on 13.09.18. -// Copyright © 2018 QuickBird Studios. All rights reserved. -// - -import UIKit - -/// -/// `TransitionProtocol` is used to abstract any concrete transition implementation. -/// -/// `Transition` is provided as an easily-extensible default transition type implementation. -/// -@MainActor -public protocol TransitionProtocol { - - /// The type of the rootViewController that can execute the transition. - associatedtype RootViewController: UIViewController - - - /// The presentables being shown to the user by the transition. - var presentables: [Presentable] { get } - - /// - /// The transition animation directly used in the transition, if applicable. - /// - /// - Note: - /// Make sure to not return `nil`, if you want to use `BaseCoordinator.registerInteractiveTransition` - /// to realize an interactive transition. - /// - var animation: TransitionAnimation? { get } - - /// - /// Performs a transition on the given viewController. - /// - /// - Warning: - /// Do not call this method directly. Instead use your coordinator's `performTransition` method or trigger - /// a specified route (latter option is encouraged). - /// - func perform(on rootViewController: RootViewController, - with options: TransitionOptions, - completion: PresentationHandler?) - - // MARK: Always accessible transitions - - /// - /// Creates a compound transition by chaining multiple transitions together. - /// - /// - Parameter transitions: - /// The transitions to be chained to form a combined transition. - /// - static func multiple(_ transitions: [Self]) -> Self -} - -extension TransitionProtocol { - - /// - /// Creates a compound transition by chaining multiple transitions together. - /// - /// - Parameter transitions: - /// The transitions to be chained to form a combined transition. - /// - public static func multiple(_ transitions: Self...) -> Self { - multiple(transitions) - } - -} diff --git a/Sources/XCoordinator/View/Transition+Init.swift b/Sources/XCoordinator/View/Transition+Init.swift index 78de8cb5..73234e9f 100755 --- a/Sources/XCoordinator/View/Transition+Init.swift +++ b/Sources/XCoordinator/View/Transition+Init.swift @@ -183,6 +183,19 @@ extension Transition { /// - Parameter transitions: /// The transitions to be chained to form the new transition. /// + public static func multiple(_ transitions: Transition...) -> Transition { + multiple(transitions) + } + + /// + /// With this transition you can chain multiple transitions of the same type together. + /// + /// Each transition is performed strictly after the previous one has fully completed, since a + /// transition may fail if a prior one is still in progress. + /// + /// - Parameter transitions: + /// The transitions to be chained to form the new transition. + /// public static func multiple(_ transitions: some Collection) -> Transition { Transition(presentables: transitions.flatMap { $0.presentables }, animationInUse: transitions.compactMap { $0.animation }.last @@ -242,13 +255,28 @@ extension Transition { /// - transition: The transition to be performed. /// - viewController: The viewController to perform the transition on. /// - public static func perform(_ transition: TransitionType, - on viewController: TransitionType.RootViewController) -> Transition { + public static func perform(_ transition: Transition, + on viewController: OtherRoot) -> Transition { Transition(presentables: transition.presentables, animationInUse: transition.animation) { _, options, completion in transition.perform(on: viewController, with: options, completion: completion) } } + /// + /// Performs a transition — described with the transition builder — on a different viewController + /// than the coordinator's rootViewController. + /// + /// - Parameters: + /// - viewController: The viewController to perform the transition on. + /// - transition: A transition-builder closure describing the transition to perform. + /// + public static func perform( + on viewController: OtherRoot, + @TransitionBuilder _ transition: () -> Transition + ) -> Transition { + perform(transition(), on: viewController) + } + } extension Transition { diff --git a/Sources/XCoordinator/View/UIViewController+Extras.swift b/Sources/XCoordinator/View/UIViewController+Extras.swift new file mode 100644 index 00000000..0bd599c0 --- /dev/null +++ b/Sources/XCoordinator/View/UIViewController+Extras.swift @@ -0,0 +1,17 @@ +// +// UIViewController+Extras.swift +// XCoordinator +// +// Created by Paul Kraft on 08.05.23. +// Copyright © 2018 QuickBird Studios. All rights reserved. +// + +import UIKit + +extension UIViewController { + + internal var topPresentedViewController: UIViewController { + presentedViewController?.topPresentedViewController ?? self + } + +} diff --git a/Sources/XCoordinator/View/UIViewController+Transition.swift b/Sources/XCoordinator/View/UIViewController+Transition.swift index 3fee33ad..6ee8fb25 100755 --- a/Sources/XCoordinator/View/UIViewController+Transition.swift +++ b/Sources/XCoordinator/View/UIViewController+Transition.swift @@ -10,10 +10,6 @@ import UIKit extension UIViewController { - private var topPresentedViewController: UIViewController { - presentedViewController?.topPresentedViewController ?? self - } - func show(_ viewController: UIViewController, with options: TransitionOptions, completion: PresentationHandler?) { diff --git a/Sources/XCoordinator/View/ViewCoordinator.swift b/Sources/XCoordinator/View/ViewCoordinator.swift index 60b71084..89af01fe 100755 --- a/Sources/XCoordinator/View/ViewCoordinator.swift +++ b/Sources/XCoordinator/View/ViewCoordinator.swift @@ -22,7 +22,7 @@ public typealias ViewTransition = Transition /// /// ViewCoordinator is a base class for custom coordinators with a `UIViewController` rootViewController. /// -open class ViewCoordinator: BaseCoordinator { +open class ViewCoordinator: BaseCoordinator { // MARK: Initialization @@ -32,11 +32,23 @@ open class ViewCoordinator: BaseCoordinator initialTransition: () -> ViewTransition) { + super.init(rootViewController: rootViewController, + initialTransition: initialTransition()) + } + /// /// Creates a view coordinator with the given root view controller and an optional initial route. /// @@ -44,8 +56,7 @@ open class ViewCoordinator: BaseCoordinator: BaseCoordinator( - initialTransition: TransitionType?, + initialTransition: ViewTransition?, @ViewBuilder body: () -> Content ) { super.init( @@ -84,6 +95,23 @@ open class ViewCoordinator: BaseCoordinator( + @TransitionBuilder initialTransition: () -> ViewTransition, + @ViewBuilder body: () -> Content + ) { + super.init( + rootViewController: RoutingController(rootView: body()), + initialTransition: initialTransition() + ) + } + #endif } diff --git a/Sources/XCoordinator/XCoordinator.docc/Documentation.md b/Sources/XCoordinator/XCoordinator.docc/Documentation.md index 59d7de34..4f9d423b 100644 --- a/Sources/XCoordinator/XCoordinator.docc/Documentation.md +++ b/Sources/XCoordinator/XCoordinator.docc/Documentation.md @@ -26,19 +26,23 @@ class UserListCoordinator: NavigationCoordinator { super.init(initialRoute: .home) } + @TransitionBuilder override func prepareTransition(for route: UserListRoute) -> NavigationTransition { switch route { case .home: - return .push(HomeViewController()) + Transition.push(HomeViewController()) case .user(let name): - return .present(UserCoordinator(user: name), animation: .default) + Transition.present(UserCoordinator(user: name), animation: .default) case .logout: - return .dismiss() + Transition.dismiss() } } } ``` +The classic style — a plain `prepareTransition(for:)` (no attribute) returning `Transition.…` factories — +remains fully supported and non-breaking; see . + Trigger routes from a view model that holds a typed router reference: ```swift @@ -70,6 +74,60 @@ class AppDelegate: UIResponder, UIApplicationDelegate { } ``` +## Building transitions + +There are two supported ways to define the transition for a route — both produce a `Transition`. + +### The transition builder (recommended, new in 3.0) + +Annotate your override with `@TransitionBuilder` to compose transitions declaratively. +The builder operates on ``Transition`` values, so its body simply lists the `Transition.…` factories that +apply to the coordinator's root view controller — `.push(_:)`, `.present(_:)`, `.dismiss()`, `.set(_:)`, +`.select(_:)`, `.deepLink(_:_:)`, `.withAnimation { … }`, `.none()`, … Listing several in one block chains +them in order (equivalent to `.multiple`). + +```swift +class AppCoordinator: NavigationCoordinator { + @TransitionBuilder + override func prepareTransition(for route: AppRoute) -> NavigationTransition { + switch route { + case .home: + Transition.push(HomeViewController()) + case .detail(let id): + Transition.push(DetailViewController(id: id)) + case .reset: + Transition.popToRoot() // list several to combine them (like `.multiple`) + Transition.push(HomeViewController()) + case .ignored: + Transition.none() // an empty builder block is a compile-time error + } + } +} +``` + +> Note: Swift does not inherit a result-builder attribute onto an override, so you must restate +> `@TransitionBuilder` on each override that uses builder syntax. + +The same builder closure is accepted anywhere a transition is expected — ``BasicCoordinator``'s initializer, +`performTransition(_:)`, `Transition.perform(on:_:)`, and the `initialTransition:` initializers. + +### The classic style (still supported, non-breaking) + +A plain `prepareTransition(for:)` (no attribute) that returns `Transition.…` factories works exactly as it +did in 2.x — nothing to migrate: + +```swift +class AppCoordinator: NavigationCoordinator { + override func prepareTransition(for route: AppRoute) -> NavigationTransition { + switch route { + case .home: .push(HomeViewController()) + case .detail(let id): .push(DetailViewController(id: id)) + case .reset: .multiple(.popToRoot(), .push(HomeViewController())) + } + } +} +``` + ## Choosing a router reference Since 3.0, type erasure is provided by Swift's parameterized existential `any Router`. There are no longer dedicated `AnyRouter`, `StrongRouter`, `UnownedRouter`, or `WeakRouter` types — you simply choose the ARC qualifier that matches the lifetime relationship: @@ -125,7 +183,7 @@ struct ChildView: View { } ``` -**Drive SwiftUI state changes from `prepareTransition`** with `Transition.withAnimation` or `Transition.withTransaction`, which run a body closure inside `SwiftUI.withAnimation`/`withTransaction` without performing any UIKit transition: +**Drive SwiftUI state changes from `prepareTransition(for:)`** with `Transition.withAnimation` or `Transition.withTransaction`, which run a body closure inside `SwiftUI.withAnimation`/`withTransaction` without performing any UIKit transition: ```swift class HomeCoordinator: TabBarCoordinator { @@ -228,12 +286,11 @@ The available transitions depend on the coordinator's `RootViewController` type. - ``Route`` - ``Router`` - ``Presentable`` -- ``TransitionPerformer`` ### Transitions - ``Transition`` -- ``TransitionProtocol`` +- ``TransitionContext`` - ``TransitionOptions`` - ``NavigationTransition`` - ``TabBarTransition`` @@ -241,6 +298,10 @@ The available transitions depend on the coordinator's `RootViewController` type. - ``PageTransition`` - ``ViewTransition`` +### Transition builder + +- ``TransitionBuilder`` + ### Animations - ``Animation`` diff --git a/Sources/XCoordinatorRx/Router+Rx.swift b/Sources/XCoordinatorRx/Router+Rx.swift index c162242f..6cb2732a 100644 --- a/Sources/XCoordinatorRx/Router+Rx.swift +++ b/Sources/XCoordinatorRx/Router+Rx.swift @@ -66,7 +66,7 @@ extension ReactiveRouter { } /// - /// Wraps a route trigger in an `Observable` that emits the resulting + /// Wraps a route trigger in an `Observable` that emits the resulting /// transition context once the transition has completed. /// /// Useful for deep linking when the resulting context is required for further processing. @@ -79,7 +79,7 @@ extension ReactiveRouter { public func contextTrigger( _ route: RouteType, with options: TransitionOptions = .init(animated: true) - ) -> Observable { + ) -> Observable { Observable.create { [base] observer -> Disposable in base.contextTrigger(route, with: options) { observer.onNext($0) diff --git a/TestHost/App/AppDelegate.swift b/TestHost/App/AppDelegate.swift new file mode 100644 index 00000000..8c681247 --- /dev/null +++ b/TestHost/App/AppDelegate.swift @@ -0,0 +1,32 @@ +// +// AppDelegate.swift +// XCoordinatorTestHost +// +// Minimal scene-based host application for running XCoordinatorTests. +// UIKit view-controller presentation only works when a real UIWindowScene +// exists, which a bare SwiftPM test bundle does not provide — hence this host. +// + +import UIKit + +@main +final class AppDelegate: UIResponder, UIApplicationDelegate { + + func application( + _ application: UIApplication, + didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil + ) -> Bool { + true + } + + func application( + _ application: UIApplication, + configurationForConnecting connectingSceneSession: UISceneSession, + options: UIScene.ConnectionOptions + ) -> UISceneConfiguration { + let configuration = UISceneConfiguration(name: "Default", sessionRole: connectingSceneSession.role) + configuration.delegateClass = SceneDelegate.self + return configuration + } + +} diff --git a/TestHost/App/Info.plist b/TestHost/App/Info.plist new file mode 100644 index 00000000..c8f750a0 --- /dev/null +++ b/TestHost/App/Info.plist @@ -0,0 +1,25 @@ + + + + + UIApplicationSceneManifest + + UIApplicationSupportsMultipleScenes + + UISceneConfigurations + + UIWindowSceneSessionRoleApplication + + + UISceneConfigurationName + Default + UISceneDelegateClassName + $(PRODUCT_MODULE_NAME).SceneDelegate + + + + + UILaunchScreen + + + diff --git a/TestHost/App/SceneDelegate.swift b/TestHost/App/SceneDelegate.swift new file mode 100644 index 00000000..2b88a2be --- /dev/null +++ b/TestHost/App/SceneDelegate.swift @@ -0,0 +1,24 @@ +// +// SceneDelegate.swift +// XCoordinatorTestHost +// + +import UIKit + +final class SceneDelegate: UIResponder, UIWindowSceneDelegate { + + var window: UIWindow? + + func scene( + _ scene: UIScene, + willConnectTo session: UISceneSession, + options connectionOptions: UIScene.ConnectionOptions + ) { + guard let windowScene = scene as? 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+ defaultConfigurationIsVisible = 0; + defaultConfigurationName = Release; + }; + 0A0000000000000000000082 /* Build configuration list for PBXNativeTarget "XCoordinatorTests" */ = { + isa = XCConfigurationList; + buildConfigurations = ( + 0A0000000000000000000094 /* Debug */, + 0A0000000000000000000095 /* Release */, + ); + defaultConfigurationIsVisible = 0; + defaultConfigurationName = Release; + }; +/* End XCConfigurationList section */ + +/* Begin XCLocalSwiftPackageReference section */ + 0A00000000000000000000A0 /* XCLocalSwiftPackageReference "XCoordinator" */ = { + isa = XCLocalSwiftPackageReference; + relativePath = ..; + }; +/* End XCLocalSwiftPackageReference section */ + +/* Begin XCSwiftPackageProductDependency section */ + 0A00000000000000000000A1 /* XCoordinator */ = { + isa = XCSwiftPackageProductDependency; + productName = XCoordinator; + }; +/* End XCSwiftPackageProductDependency section */ + }; + rootObject = 0A0000000000000000000001 /* Project object */; +} diff --git a/TestHost/XCoordinatorTestHost.xcodeproj/xcshareddata/xcschemes/XCoordinatorTestHost.xcscheme b/TestHost/XCoordinatorTestHost.xcodeproj/xcshareddata/xcschemes/XCoordinatorTestHost.xcscheme new file mode 100644 index 00000000..b33b7a93 --- /dev/null +++ b/TestHost/XCoordinatorTestHost.xcodeproj/xcshareddata/xcschemes/XCoordinatorTestHost.xcscheme @@ -0,0 +1,64 @@ + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/Tests/XCoordinatorTests/AnimationTests.swift b/Tests/XCoordinatorTests/AnimationTests.swift index 7733c1bb..6c287be6 100644 --- a/Tests/XCoordinatorTests/AnimationTests.swift +++ b/Tests/XCoordinatorTests/AnimationTests.swift @@ -10,21 +10,12 @@ import UIKit import XCoordinator import XCTest +@MainActor class AnimationTests: XCTestCase { - // MARK: Static properties - - static let allTests = [ - ("testPageCoordinator", testPageCoordinator), - ("testSplitCoordinator", testSplitCoordinator), - ("testTabBarCoordinator", testTabBarCoordinator), - ("testViewCoordinator", testViewCoordinator), - ("testNavigationCoordinator", testNavigationCoordinator), - ] - // MARK: Stored properties - lazy var window = UIWindow() + lazy var window = makeWindow() // MARK: Tests @@ -52,13 +43,16 @@ class AnimationTests: XCTestCase { coordinator.setRoot(for: window) testStandardAnimationsCalled(on: coordinator) - testStaticAnimationCalled(on: coordinator, transition: { .select(tabs[1], animation: $0) }) + // UIKit only runs a custom tab-bar animator when an interaction controller is present, + // so the static (non-interactive) cases assert completion only, while the interactive + // cases assert the custom animation runs. + testCompletionCalled(on: coordinator, transition: { .select(tabs[1], animation: $0) }) testInteractiveAnimationCalled(on: coordinator, transition: { .select(tabs[2], animation: $0) }) - testStaticAnimationCalled(on: coordinator, transition: { .select(index: 1, animation: $0) }) + testCompletionCalled(on: coordinator, transition: { .select(index: 1, animation: $0) }) testInteractiveAnimationCalled(on: coordinator, transition: { .select(index: 2, animation: $0) }) - testStaticAnimationCalled( + testCompletionCalled( on: coordinator, transition: { .set([UIViewController(), UIViewController()], animation: $0) } ) @@ -101,7 +95,7 @@ class AnimationTests: XCTestCase { // MARK: Helpers - private func testStandardAnimationsCalled(on coordinator: C) where C.TransitionType == Transition { + private func testStandardAnimationsCalled(on coordinator: C) { testStaticAnimationCalled(on: coordinator, transition: { .present(UIViewController(), animation: $0) }) testStaticAnimationCalled(on: coordinator, transition: { .dismiss(animation: $0) }) testStaticAnimationCalled( @@ -122,7 +116,7 @@ class AnimationTests: XCTestCase { } private func testStaticAnimationCalled(on coordinator: C, - transition: (Animation) -> C.TransitionType) { + transition: (Animation) -> Transition) { let animationExpectation = expectation(description: "Animation \(Date().timeIntervalSince1970)") let completionExpectation = expectation(description: "Completion \(Date().timeIntervalSince1970)") print(#function, animationExpectation) @@ -131,12 +125,15 @@ class AnimationTests: XCTestCase { coordinator.performTransition(t, with: TransitionOptions(animated: true)) { completionExpectation.fulfill() } - wait(for: [animationExpectation, completionExpectation], timeout: 3, enforceOrder: true) + // Order is not enforced: for container transitions (tab bar / navigation) UIKit + // may invoke the animator and fire the completion in either order. What matters + // is that both happen — the animation runs and the completion is called. + wait(for: [animationExpectation, completionExpectation], timeout: 3) asyncWait(for: 0.1) } private func testInteractiveAnimationCalled(on coordinator: C, - transition: (Animation) -> C.TransitionType) { + transition: (Animation) -> Transition) { let animationExpectation = expectation(description: "Animation \(Date().timeIntervalSince1970)") let completionExpectation = expectation(description: "Completion \(Date().timeIntervalSince1970)") print(#function, animationExpectation) @@ -149,7 +146,28 @@ class AnimationTests: XCTestCase { completionExpectation.fulfill() _ = testAnimation } - wait(for: [animationExpectation, completionExpectation], timeout: 3, enforceOrder: true) + // Order is not enforced: for container transitions (tab bar / navigation) UIKit + // may invoke the animator and fire the completion in either order. What matters + // is that both happen — the animation runs and the completion is called. + wait(for: [animationExpectation, completionExpectation], timeout: 3) + asyncWait(for: 0.1) + } + + /// Verifies only that the completion handler fires. + /// + /// Used for *static* programmatic `UITabBarController` selection / `set`: UIKit only invokes + /// a custom tab-bar animator when an interaction controller is present, so for these + /// transitions iOS performs the switch without running the custom animation. The interactive + /// variants (which UIKit does animate) cover the animation wiring; here we assert the + /// transition still completes. + private func testCompletionCalled(on coordinator: C, + transition: (Animation) -> Transition) { + let completionExpectation = expectation(description: "Completion \(Date().timeIntervalSince1970)") + let t = transition(.default) + coordinator.performTransition(t, with: TransitionOptions(animated: true)) { + completionExpectation.fulfill() + } + wait(for: [completionExpectation], timeout: 3) asyncWait(for: 0.1) } } diff --git a/Tests/XCoordinatorTests/TestAnimation.swift b/Tests/XCoordinatorTests/TestAnimation.swift index 4dd6e1f0..d224c8a3 100644 --- a/Tests/XCoordinatorTests/TestAnimation.swift +++ b/Tests/XCoordinatorTests/TestAnimation.swift @@ -26,16 +26,24 @@ class TestAnimation: Animation { } private static func interactiveTransitionAnimation(for expectation: XCTestExpectation?) -> TransitionAnimation { - InteractiveTransitionAnimation(duration: 0.1) { + InteractiveTransitionAnimation(duration: 0.1) { context in expectation?.fulfill() - $0.completeTransition(true) + // Complete asynchronously, like a real animator does after its duration. + // Completing synchronously finishes the transition before UIKit's + // transitionCoordinator-based completion can register, which drops the + // completion handler (notably for navigation push/pop and tab selection). + DispatchQueue.main.async { + context.completeTransition(true) + } } } private static func staticTransitionAnimation(for expectation: XCTestExpectation?) -> TransitionAnimation { - StaticTransitionAnimation(duration: 0.1) { + StaticTransitionAnimation(duration: 0.1) { context in expectation?.fulfill() - $0.completeTransition(true) + DispatchQueue.main.async { + context.completeTransition(true) + } } } diff --git a/Tests/XCoordinatorTests/TransitionTests.swift b/Tests/XCoordinatorTests/TransitionTests.swift index c4d4bed2..c67014d8 100644 --- a/Tests/XCoordinatorTests/TransitionTests.swift +++ b/Tests/XCoordinatorTests/TransitionTests.swift @@ -10,21 +10,12 @@ import UIKit import XCoordinator import XCTest +@MainActor class TransitionTests: XCTestCase { - // MARK: Static properties - - static let allTests = [ - ("testPageCoordinator", testPageCoordinator), - ("testSplitCoordinator", testSplitCoordinator), - ("testTabBarCoordinator", testTabBarCoordinator), - ("testViewCoordinator", testViewCoordinator), - ("testNavigationCoordinator", testNavigationCoordinator), - ] - // MARK: Stored properties - lazy var window = UIWindow() + lazy var window = makeWindow() // MARK: Tests @@ -78,9 +69,23 @@ class TransitionTests: XCTestCase { testCompletionCalled(on: coordinator, transition: .pop(to: viewControllers[0])) } + // MARK: Regression coverage + + /// `Transition.set(_:animation:)` on a `UITabBarController` must expose its presentation animation + /// via `transition.animation` (used by `registerInteractiveTransition`). Regression guard: a previous + /// refactor dropped it (`animationInUse: nil`). + func testSetTabsExposesAnimation() { + let animation = Animation( + presentation: StaticTransitionAnimation(duration: 0) { $0.completeTransition(true) }, + dismissal: StaticTransitionAnimation(duration: 0) { $0.completeTransition(true) } + ) + let transition: TabBarTransition = .set([UIViewController()], animation: animation) + XCTAssertNotNil(transition.animation) + } + // MARK: Helpers - private func testStandardTransitions(on coordinator: C) where C.TransitionType == Transition { + private func testStandardTransitions(on coordinator: C) { testCompletionCalled(on: coordinator, transition: .none()) testCompletionCalled(on: coordinator, transition: .present(UIViewController())) testCompletionCalled(on: coordinator, transition: .dismiss()) @@ -89,7 +94,7 @@ class TransitionTests: XCTestCase { testCompletionCalled(on: coordinator, transition: .multiple()) } - private func testCompletionCalled(on coordinator: C, transition: C.TransitionType) { + private func testCompletionCalled(on coordinator: C, transition: Transition) { let exp = expectation(description: "\(Date().timeIntervalSince1970)") DispatchQueue.main.async { coordinator.performTransition(transition, with: .init(animated: true)) { diff --git a/Tests/XCoordinatorTests/XCTestManifests.swift b/Tests/XCoordinatorTests/XCTestManifests.swift deleted file mode 100644 index 66c74c72..00000000 --- a/Tests/XCoordinatorTests/XCTestManifests.swift +++ /dev/null @@ -1,10 +0,0 @@ -import XCTest - -#if !canImport(ObjectiveC) -public func allTests() -> [XCTestCaseEntry] { - [ - testCase(AnimationTests.allTests), - testCase(TransitionTests.allTests) - ] -} -#endif diff --git a/Tests/XCoordinatorTests/XCText+Extras.swift b/Tests/XCoordinatorTests/XCText+Extras.swift index ddab2fa3..47fd6761 100644 --- a/Tests/XCoordinatorTests/XCText+Extras.swift +++ b/Tests/XCoordinatorTests/XCText+Extras.swift @@ -7,10 +7,27 @@ // import Foundation +import UIKit import XCTest extension XCTestCase { + /// Creates a window attached to the host app's foreground `UIWindowScene`. + /// + /// UIKit only renders windows that belong to an active scene, and navigation + /// push/pop animations only run (and call their completion) when the controller + /// is actually on screen. A bare `UIWindow()` has no scene and never renders, + /// so the tests use the scene provided by the test-host application. + @MainActor + func makeWindow() -> UIWindow { + let windowScenes = UIApplication.shared.connectedScenes.compactMap { $0 as? UIWindowScene } + let scene = windowScenes.first { $0.activationState == .foregroundActive } ?? windowScenes.first + if let scene { + return UIWindow(windowScene: scene) + } + return UIWindow(frame: UIScreen.main.bounds) + } + func asyncWait(for timeInterval: TimeInterval) { let waitExpectation = self.expectation(description: "WAIT \(Date().timeIntervalSince1970)") DispatchQueue.global(qos: .userInitiated).asyncAfter(deadline: .now() + timeInterval) { diff --git a/XCoordinator.podspec b/XCoordinator.podspec index 05b80ebb..73ed2409 100644 --- a/XCoordinator.podspec +++ b/XCoordinator.podspec @@ -8,8 +8,8 @@ Pod::Spec.new do |spec| spec.source = { :git => 'https://github.com/quickbirdstudios/XCoordinator.git', :tag => spec.version } spec.module_name = 'XCoordinator' spec.swift_version = '5.9' - spec.ios.deployment_target = '14.0' - spec.tvos.deployment_target = '14.0' + spec.ios.deployment_target = '16.0' + spec.tvos.deployment_target = '16.0' spec.source_files = 'Sources/XCoordinator/**/*.swift' spec.default_subspec = 'Core'