feat: open-source 小浣熊阅读 for iOS

2026-10-24 12:51:22 +08:00 · 2026-10-14 11:37:36 +08:00
commit ffc9e9d91d
193 changed files with 41382 additions and 0 deletions
@@ -0,0 +1,152 @@
+import SwiftUI
+
+@MainActor
+final class LocalBookDetailViewModel: ObservableObject {
+    @Published private(set) var chapters: [BookChapter] = []
+    @Published private(set) var isLoading = false
+    @Published private(set) var errorMessage: String?
+
+    private let service = LocalBookService.live()
+
+    func load(book: Book) async {
+        guard chapters.isEmpty, !isLoading else { return }
+        isLoading = true
+        defer { isLoading = false }
+        do {
+            let report = try await Task.detached { [service] in try service.loadChapters(book: book) }.value
+            chapters = report.chapters
+        } catch {
+            errorMessage = error.localizedDescription
+        }
+    }
+}
+
+struct LocalBookDetailView: View {
+    @EnvironmentObject private var library: BookLibraryModel
+    @Environment(\.dismiss) private var dismiss
+    let book: Book
+    @StateObject private var model = LocalBookDetailViewModel()
+    @State private var showsTableOfContents = false
+    @State private var showsRemoveConfirmation = false
+
+    var body: some View {
+        ScrollView {
+            VStack(spacing: 16) {
+                VStack(spacing: 14) {
+                    BookCoverArtwork(title: book.name, author: book.author, width: 108, height: 154)
+                    Text(book.name).font(.title2.bold())
+                    HStack {
+                        StatusPill(text: "本地 TXT", systemImage: "doc.text.fill")
+                        if let charset = book.charset { StatusPill(text: charset, color: ReadingTheme.coral, systemImage: "character") }
+                    }
+                    Text(book.originName).font(.caption).foregroundStyle(.secondary)
+                }
+                .padding(.top, 12)
+
+                ReadingCard {
+                    VStack(alignment: .leading, spacing: 0) {
+                        HStack {
+                            Label("目录", systemImage: "list.bullet.rectangle.portrait.fill").font(.headline)
+                            Spacer()
+                            Text("\(model.chapters.count) 章").font(.caption).foregroundStyle(.secondary)
+                        }
+                        .padding(.bottom, 12)
+                        if model.isLoading {
+                            HStack { Spacer(); ProgressView("正在识别章节…"); Spacer() }.padding(.vertical, 28)
+                        } else if let error = model.errorMessage {
+                            ReadingUnavailableView("无法读取本地书", systemImage: "doc.badge.ellipsis", description: Text(error))
+                        } else {
+                            ForEach(model.chapters.prefix(8)) { chapter in
+                                Divider()
+                                NavigationLink {
+                                    ReaderView(book: book, chapters: model.chapters, initialIndex: chapter.index)
+                                } label: {
+                                    HStack(spacing: 12) {
+                                        Text(String(format: "%02d", chapter.index + 1))
+                                            .font(.caption.monospacedDigit()).foregroundStyle(.tertiary).frame(width: 28)
+                                        Text(chapter.title).font(.subheadline).foregroundStyle(.primary).lineLimit(2)
+                                        Spacer()
+                                        Image(systemName: "chevron.right").font(.caption.bold()).foregroundStyle(.tertiary)
+                                    }
+                                    .padding(.vertical, 12)
+                                }
+                            }
+                            if model.chapters.count > 8 {
+                                Divider()
+                                Button("查看全部目录", systemImage: "list.bullet") {
+                                    showsTableOfContents = true
+                                }
+                                .frame(maxWidth: .infinity).padding(.vertical, 10)
+                            }
+                        }
+                    }
+                }
+            }
+            .padding(.horizontal, 16).padding(.bottom, 30)
+        }
+        .background(ReadingTheme.canvas)
+        .navigationTitle(book.name)
+        .navigationBarTitleDisplayMode(.inline)
+        .toolbar {
+            ToolbarItem(placement: .topBarTrailing) {
+                Menu {
+                    Button("全部目录", systemImage: "list.bullet") { showsTableOfContents = true }
+                    Button("移出书架", systemImage: "trash", role: .destructive) { showsRemoveConfirmation = true }
+                } label: { Image(systemName: "ellipsis.circle") }
+            }
+        }
+        .task { await model.load(book: book) }
+        .sheet(isPresented: $showsTableOfContents) {
+            LocalBookTableOfContentsView(book: book, chapters: model.chapters)
+        }
+        .confirmationDialog("从书架移除《\(book.name)》？", isPresented: $showsRemoveConfirmation) {
+            Button("移出书架", role: .destructive) {
+                Task { await library.remove(bookURL: book.bookUrl); dismiss() }
+            }
+            Button("取消", role: .cancel) {}
+        }
+    }
+}
+
+private struct LocalBookTableOfContentsView: View {
+    @Environment(\.dismiss) private var dismiss
+    let book: Book
+    let chapters: [BookChapter]
+    @State private var query = ""
+    @State private var descending = false
+
+    private var displayed: [BookChapter] {
+        let filtered = query.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty
+            ? chapters
+            : chapters.filter { $0.title.localizedCaseInsensitiveContains(query) }
+        return descending ? Array(filtered.reversed()) : filtered
+    }
+
+    var body: some View {
+        ReadingNavigationStack {
+            List(displayed) { chapter in
+                NavigationLink {
+                    ReaderView(book: book, chapters: chapters, initialIndex: chapter.index)
+                } label: {
+                    HStack {
+                        Text("\(chapter.index + 1)").font(.caption.monospacedDigit()).foregroundStyle(.secondary).frame(width: 42, alignment: .trailing)
+                        Text(chapter.title).lineLimit(2)
+                        Spacer()
+                        if chapter.index == book.durChapterIndex {
+                            Image(systemName: "location.fill").foregroundStyle(ReadingTheme.accent)
+                        }
+                    }
+                }
+            }
+            .searchable(text: $query, prompt: "搜索目录")
+            .navigationTitle("目录")
+            .navigationBarTitleDisplayMode(.inline)
+            .toolbar {
+                ToolbarItem(placement: .cancellationAction) { Button("关闭") { dismiss() } }
+                ToolbarItem(placement: .topBarTrailing) {
+                    Button(descending ? "正序" : "倒序", systemImage: "arrow.up.arrow.down") { descending.toggle() }
+                }
+            }
+        }
+    }
+}