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import UIKit |
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protocol NavigationCoordinator: AnyObject { |
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/// - Returns: true if it successfully completed the navigation |
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@discardableResult func navigate(from source: UIViewController, |
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to destination: UIViewController.Type, |
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data: NavigationData?) -> Bool |
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} |
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/// Data structure used to simplify the passing of data. |
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struct NavigationData { |
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private var rawData: [String: Any] = [:] |
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/// Key values. |
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init(_ values: [String: Any]) { |
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rawData = values |
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} |
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/// Use this constructor when all the values have different types. |
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/// |
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/// let data = NavigationData(IndexPath(row: 1, section: 2), "james") |
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/// let indexPath: IndexPath? = data.get() |
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/// let username = data.get(String.self) |
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init(_ values: Any...) { |
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values.forEach({ rawData[UUID().uuidString] = $0 }) |
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} |
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init(build: (Builder) -> Void) { |
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let builder = Builder() |
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build(builder) |
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rawData = builder.rawData |
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} |
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/// Retrieve the value of implicit type T associated with *key*. |
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/// |
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/// let token: String? = data.get(key: "token") |
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func get<T>(key: String) -> T? { |
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return rawData[key] as? T |
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} |
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/// Retrieve the value of type *dataType* associated with *key*. |
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/// |
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/// let token = data.get(key: "token", String.self) |
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func get<T>(key: String, _ dataType: T.Type) -> T? { |
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return get(key: key) as T? |
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} |
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/// Retrieve the first value of implicit type T. |
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/// |
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/// let token: String? = data.get() |
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func get<T>() -> T? { |
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return rawData.values.first(where: { $0 is T }) as? T |
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} |
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/// Retrieve the first value of type *dataType*. |
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/// |
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/// let token = data.get(String.self) |
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func get<T>(_ dataType: T.Type) -> T? { |
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return rawData.values.first(where: { type(of: $0) == dataType }) as? T |
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} |
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class Builder { |
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fileprivate var rawData: [String: Any] = [:] |
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func add(key: String, data: Any) { |
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rawData[key] = data |
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} |
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/// Only use this method when all the data have different types. |
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/// |
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/// - Parameter data: any data |
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func add(data: Any) { |
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rawData[UUID().uuidString] = data |
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} |
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} |
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} |
