jellyflood/Swiftfin tvOS/Components/PosterHStack.swift

140 lines
4.2 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) 2024 Jellyfin & Jellyfin Contributors
//
import CollectionHStack
import OrderedCollections
import SwiftUI
// TODO: trailing content refactor?
struct PosterHStack<Item: Poster>: View {
private var title: String?
private var type: PosterType
private var items: Binding<OrderedSet<Item>>
private var content: (Item) -> any View
private var imageOverlay: (Item) -> any View
private var contextMenu: (Item) -> any View
private var trailingContent: () -> any View
private var onSelect: (Item) -> Void
// See PosterButton for implementation reason
private var focusedItem: Binding<Item?>?
var body: some View {
VStack(alignment: .leading, spacing: 20) {
if let title {
HStack {
Text(title)
.font(.title2)
.fontWeight(.semibold)
.accessibility(addTraits: [.isHeader])
.padding(.leading, 50)
Spacer()
}
}
CollectionHStack(
items,
columns: type == .landscape ? 4 : 7
) { item in
PosterButton(item: item, type: type)
.content { content(item).eraseToAnyView() }
.imageOverlay { imageOverlay(item).eraseToAnyView() }
.contextMenu { contextMenu(item).eraseToAnyView() }
.onSelect { onSelect(item) }
.ifLet(focusedItem) { view, focusedItem in
view.onFocusChanged { isFocused in
if isFocused { focusedItem.wrappedValue = item }
}
}
}
.clipsToBounds(false)
.dataPrefix(20)
.insets(horizontal: EdgeInsets.defaultEdgePadding, vertical: 20)
.itemSpacing(EdgeInsets.defaultEdgePadding - 20)
.scrollBehavior(.continuousLeadingEdge)
}
.focusSection()
.mask {
VStack(spacing: 0) {
Color.white
LinearGradient(
stops: [
.init(color: .white, location: 0),
.init(color: .clear, location: 1),
],
startPoint: .top,
endPoint: .bottom
)
.frame(height: 20)
}
}
}
}
extension PosterHStack {
init(
title: String? = nil,
type: PosterType,
items: Binding<OrderedSet<Item>>
) {
self.init(
title: title,
type: type,
items: items,
content: { PosterButton.TitleSubtitleContentView(item: $0) },
imageOverlay: { PosterButton.DefaultOverlay(item: $0) },
contextMenu: { _ in EmptyView() },
trailingContent: { EmptyView() },
onSelect: { _ in },
focusedItem: nil
)
}
init<S: Sequence<Item>>(
title: String? = nil,
type: PosterType,
items: S
) {
self.init(
title: title,
type: type,
items: .constant(OrderedSet(items))
)
}
func content(@ViewBuilder _ content: @escaping (Item) -> any View) -> Self {
copy(modifying: \.content, with: content)
}
func imageOverlay(@ViewBuilder _ content: @escaping (Item) -> any View) -> Self {
copy(modifying: \.imageOverlay, with: content)
}
func contextMenu(@ViewBuilder _ content: @escaping (Item) -> any View) -> Self {
copy(modifying: \.contextMenu, with: content)
}
func trailing(@ViewBuilder _ content: @escaping () -> any View) -> Self {
copy(modifying: \.trailingContent, with: content)
}
func onSelect(_ action: @escaping (Item) -> Void) -> Self {
copy(modifying: \.onSelect, with: action)
}
func focusedItem(_ binding: Binding<Item?>) -> Self {
copy(modifying: \.focusedItem, with: binding)
}
}