Files
CoreStore/Sources/ListReader.swift
2021-02-16 09:12:36 +09:00

79 lines
2.3 KiB
Swift

//
// ListReader.swift
// CoreStore
//
// Copyright © 2021 John Rommel Estropia
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
#if canImport(Combine) && canImport(SwiftUI)
import Combine
import SwiftUI
// MARK: - ListReader
@available(iOS 13.0, tvOS 13.0, watchOS 6.0, macOS 10.15, *)
public struct ListReader<Object: DynamicObject, Content: View, Value>: View {
// MARK: Internal
public init(
_ listPublisher: ListPublisher<Object>,
@ViewBuilder content: @escaping (Value) -> Content
) where Value == LiveList<Object>.Items {
self._list = .init(listPublisher)
self.content = content
self.keyPath = \.self
}
public init(
_ listPublisher: ListPublisher<Object>,
keyPath: KeyPath<LiveList<Object>.Items, Value>,
@ViewBuilder content: @escaping (Value) -> Content
) {
self._list = .init(listPublisher)
self.content = content
self.keyPath = keyPath
}
// MARK: View
public var body: some View {
self.content(self.list[keyPath: self.keyPath])
}
// MARK: Private
@LiveList
private var list: LiveList<Object>.Items
private let content: (Value) -> Content
private let keyPath: KeyPath<LiveList<Object>.Items, Value>
}
#endif