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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift open source project
//
// Copyright (c) 2014-2021 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
/// A terminal menu that takes up the whole terminal, accepting input and
/// rendering in response.
protocol Card {
/// Render the contents to be printed to the terminal.
func render() -> String
/// Accept a line of input from the user's terminal and provide
/// an optional ``CardEvent`` which can alter the card stack.
func acceptLineInput<S: StringProtocol>(_ line: S) async -> CardEvent?
/// The input prompt to present to the user when accepting a line of input.
var inputPrompt: String? { get }
}
extension Card {
var defaultPrompt: String {
return "Press enter to continue."
}
}
extension Card {
var inputPrompt: String? {
return defaultPrompt
}
}
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