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import SwiftUI
struct PostDetailsView: View {
@EnvironmentObject var manager: BooruManager
@EnvironmentObject var settings: SettingsManager
let post: BooruPost
@Binding var navigationPath: NavigationPath
@State private var loadingStage: BooruPostLoadingState = .loadingPreview
@State private var isTagsSheetPresented = false
@State private var activePost: BooruPost
// swiftlint:disable:next discouraged_optional_collection
let posts: [BooruPost]?
let baseSearchText: String?
private var imageURL: URL? {
switch settings.detailViewQuality {
case .preview:
currentPost.previewURL
case .sample:
currentPost.sampleURL
case .original:
currentPost.fileURL
}
}
init(
post: BooruPost,
navigationPath: Binding<NavigationPath>,
// swiftlint:disable:next discouraged_optional_collection
posts: [BooruPost]? = nil,
baseSearchText: String? = nil
) {
self.post = post
self._navigationPath = navigationPath
self._activePost = State(initialValue: post)
self.posts = posts
self.baseSearchText = baseSearchText
}
var filteredPosts: [BooruPost] {
let sourcePosts = posts ?? manager.posts
return sourcePosts.filter { settings.displayRatings.contains($0.rating) }
}
private var currentPost: BooruPost {
activePost
}
var body: some View {
VStack(spacing: 0) {
#if os(macOS)
PostDetailsImageView(
url: imageURL,
loadingStage: $loadingStage,
finalLoadingState: .loaded,
post: currentPost
) {
PostDetailsImageView(
url: currentPost.previewURL,
loadingStage: $loadingStage
)
.id(currentPost.previewURL)
}
.id(imageURL)
#else
PostDetailsCarouselView(
posts: filteredPosts,
loadingStage: $loadingStage,
focusedPost: currentPost,
onFocusedPostChange: updateActivePost
)
.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .center)
#endif
if settings.displayDetailsInformationBar {
VStack(spacing: 5) {
HStack {
Text(currentPost.createdAt.formatted())
.frame(maxWidth: .infinity, alignment: .leading)
Group {
switch loadingStage {
case .loadingPreview:
Text("Loading Preview…")
case .loadingFile:
Text("Loading \(settings.detailViewQuality.rawValue)…")
case .loaded:
EmptyView()
}
}
.padding(.trailing, 5)
}
.frame(maxWidth: .infinity, alignment: .leading)
.foregroundStyle(.secondary)
}
.padding(.horizontal, 10)
.padding(.vertical, 10 / 1.33)
.textSelection(.enabled)
.font(.footnote)
#if os(iOS)
.background(.ultraThinMaterial)
#else
.background(.opacity(0.1))
#endif
.zIndex(1)
}
}
.ifiOS26Unavailable { view in
view
.navigationTitle("Details")
#if os(iOS)
.navigationBarTitleDisplayMode(.inline)
#endif
}
.toolbar {
ToolbarItem {
PostGridFavoriteButtonView(post: currentPost)
}
ToolbarItem {
Button(action: {
isTagsSheetPresented.toggle()
}) {
Label("Tags", systemImage: "tag")
}
}
#if os(macOS)
if settings.enableShareShortcut {
if let imageURL {
ToolbarItem {
ShareLink(item: imageURL) {
Label("Share", systemImage: "square.and.arrow.up")
}
}
}
}
#endif
}
.sheet(isPresented: $isTagsSheetPresented) {
if #available(macOS 15.0, *) {
tagsSheetContent()
#if os(macOS)
.presentationSizing(.page)
#endif
} else {
tagsSheetContent()
}
}
.onAppear {
syncActivePost()
}
.onChange(of: post.id) {
activePost = post
syncActivePost()
}
.onChange(of: manager.selectedPost?.id) {
syncActivePost()
}
}
@ViewBuilder
private func tagsSheetContent() -> some View {
PostDetailsTagsView(
isPresented: $isTagsSheetPresented,
navigationPath: $navigationPath,
tags: currentPost.tags,
isNestedContext: posts != nil,
baseSearchText: baseSearchText
)
#if os(macOS)
.frame(
minHeight: (NSScreen.main?.frame.height ?? 1_080) / 2,
maxHeight: .infinity
)
#endif
}
private func updateActivePost(_ post: BooruPost) {
guard activePost.id != post.id else { return }
activePost = post
}
private func syncActivePost() {
#if os(macOS)
if let selectedPost = manager.selectedPost {
updateActivePost(selectedPost)
} else {
updateActivePost(post)
}
#else
if let selectedPost = manager.selectedPost, posts == nil {
updateActivePost(selectedPost)
} else {
updateActivePost(post)
}
#endif
}
}
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