Skip to content

Support eager navigation destination resolution #241

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
wants to merge 2 commits into
base: main
Choose a base branch
from
Draft

Support eager navigation destination resolution #241

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
7ac47b6
Support eager navigation destination resolution
stephencelis Oct 16, 2024
7e12601
Merge branch 'main' into eager-navigation-destination-resolution
stephencelis Oct 17, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
16 changes: 8 additions & 8 deletions Examples/CaseStudies/UIKit/ErasedNavigationStackController.swift
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,10 @@ private class NumberFeatureViewController: UIViewController {
self.number = number
super.init(nibName: nil, bundle: nil)
title = "Feature \(number)"

navigationDestination(for: String.self) { string in
StringFeatureViewController(string: string)
}
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
Expand All @@ -89,10 +93,6 @@ private class NumberFeatureViewController: UIViewController {
super.viewDidLoad()
view.backgroundColor = .systemBackground

navigationDestination(for: String.self) { string in
StringFeatureViewController(string: string)
}

let numberButton = UIButton(
type: .system,
primaryAction: UIAction { [weak self] _ in
Expand Down Expand Up @@ -137,6 +137,10 @@ private class StringFeatureViewController: UIViewController {
self.string = string
super.init(nibName: nil, bundle: nil)
title = "Feature '\(string)'"

navigationDestination(for: Bool.self) { bool in
BoolFeatureViewController(bool: bool)
}
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
Expand All @@ -145,10 +149,6 @@ private class StringFeatureViewController: UIViewController {
super.viewDidLoad()
view.backgroundColor = .systemBackground

navigationDestination(for: Bool.self) { bool in
BoolFeatureViewController(bool: bool)
}

let numberButton = UIButton(
type: .system,
primaryAction: UIAction { [weak self] _ in
Expand Down
20 changes: 18 additions & 2 deletions Sources/UIKitNavigation/Navigation/NavigationStackController.swift
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -338,14 +338,19 @@
)
return
}
stackController.path.append(.lazy(.element(value)))
withUITransaction(\.stackController, stackController) {
stackController.path.append(.lazy(.element(value)))
}
Comment on lines +341 to +343
Copy link
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

This fixes things just for the case study, but because deep linking can happen directly from state we would need to explore a more universal solution to ship this.

}

public func navigationDestination<D: Hashable>(
for data: D.Type,
destination: @escaping (D) -> UIViewController
) {
guard let navigationController = navigationController ?? self as? UINavigationController
guard
let navigationController = UITransaction.current.stackController
?? navigationController
?? self as? UINavigationController
else {
reportIssue(
"""
Expand Down Expand Up @@ -442,4 +447,15 @@
}
}
}

private extension UITransaction {
var stackController: NavigationStackController? {
get { self[NavigationStackControllerKey.self] }
set { self[NavigationStackControllerKey.self] = newValue }
}
}

private enum NavigationStackControllerKey: UITransactionKey {
static let defaultValue: NavigationStackController? = nil
}
#endif