jellyflood/Swiftfin/Components/OrderedSectionSelectorView....

125 lines
3.6 KiB
Swift

//
// Swiftfin is subject to the terms of the Mozilla Public
// License, v2.0. If a copy of the MPL was not distributed with this
// file, you can obtain one at https://mozilla.org/MPL/2.0/.
//
// Copyright (c) 2025 Jellyfin & Jellyfin Contributors
//
import SwiftUI
struct OrderedSectionSelectorView<Element: Displayable & Hashable>: View {
@Environment(\.editMode)
private var editMode
@StateObject
private var selection: BindingBox<[Element]>
private var disabledSelection: [Element] {
sources.subtracting(selection.value)
}
private var label: (Element) -> any View
private let sources: [Element]
private func move(from source: IndexSet, to destination: Int) {
selection.value.move(fromOffsets: source, toOffset: destination)
}
private func select(element: Element) {
UIDevice.impact(.light)
if selection.value.contains(element) {
selection.value.removeAll(where: { $0 == element })
} else {
selection.value.append(element)
}
}
private var isReordering: Bool {
editMode?.wrappedValue.isEditing ?? false
}
var body: some View {
List {
Section(L10n.enabled) {
if selection.value.isEmpty {
L10n.none.text
.foregroundStyle(.secondary)
}
ForEach(selection.value, id: \.self) { element in
Button {
if !isReordering {
select(element: element)
}
} label: {
HStack {
label(element)
.eraseToAnyView()
Spacer()
if !isReordering {
Image(systemName: "minus.circle.fill")
.foregroundColor(.red)
}
}
.foregroundColor(.primary)
}
}
.onMove(perform: move)
}
Section(L10n.disabled) {
if disabledSelection.isEmpty {
L10n.none.text
.foregroundStyle(.secondary)
}
ForEach(disabledSelection, id: \.self) { element in
Button {
if !isReordering {
select(element: element)
}
} label: {
HStack {
label(element)
.eraseToAnyView()
Spacer()
if !isReordering {
Image(systemName: "plus.circle.fill")
.foregroundColor(.green)
}
}
.foregroundColor(.primary)
}
}
}
}
.animation(.linear(duration: 0.2), value: selection.value)
.toolbar {
EditButton()
}
}
}
extension OrderedSectionSelectorView {
init(selection: Binding<[Element]>, sources: [Element]) {
self._selection = StateObject(wrappedValue: BindingBox(source: selection))
self.sources = sources
self.label = { Text($0.displayTitle).foregroundColor(.primary) }
}
func label(@ViewBuilder _ content: @escaping (Element) -> any View) -> Self {
copy(modifying: \.label, with: content)
}
}