76 lines
2.2 KiB
Swift
76 lines
2.2 KiB
Swift
//
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// Swiftfin is subject to the terms of the Mozilla Public
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// License, v2.0. If a copy of the MPL was not distributed with this
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// file, you can obtain one at https://mozilla.org/MPL/2.0/.
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//
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// Copyright (c) 2024 Jellyfin & Jellyfin Contributors
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//
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import SwiftUI
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extension Binding {
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func clamp(min: Value, max: Value) -> Binding<Value> where Value: Comparable {
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Binding<Value>(
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get: { Swift.min(Swift.max(wrappedValue, min), max) },
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set: { wrappedValue = Swift.min(Swift.max($0, min), max) }
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)
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}
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func coalesce<T>(_ defaultValue: T) -> Binding<T> where Value == T? {
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Binding<T>(
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get: { wrappedValue ?? defaultValue },
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set: { wrappedValue = $0 }
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)
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}
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func contains<E: Equatable>(_ value: E) -> Binding<Bool> where Value == [E] {
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Binding<Bool>(
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get: { wrappedValue.contains(value) },
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set: { shouldBeContained in
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if shouldBeContained {
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wrappedValue.append(value)
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} else {
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wrappedValue.removeAll { $0 == value }
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}
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}
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)
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}
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func map<V>(getter: @escaping (Value) -> V, setter: @escaping (V) -> Value) -> Binding<V> {
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Binding<V>(
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get: { getter(wrappedValue) },
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set: { wrappedValue = setter($0) }
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)
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}
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func min(_ minValue: Value) -> Binding<Value> where Value: Comparable {
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Binding<Value>(
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get: { Swift.max(wrappedValue, minValue) },
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set: { wrappedValue = Swift.max($0, minValue) }
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)
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}
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func negate() -> Binding<Bool> where Value == Bool {
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map(getter: { !$0 }, setter: { $0 })
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}
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}
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extension Binding where Value: RangeReplaceableCollection, Value.Element: Equatable {
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func contains(_ element: Value.Element) -> Binding<Bool> {
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Binding<Bool>(
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get: { wrappedValue.contains(element) },
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set: { newValue in
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if newValue {
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if !wrappedValue.contains(element) {
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wrappedValue.append(element)
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}
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} else {
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wrappedValue.removeAll { $0 == element }
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}
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}
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)
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}
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}
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