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// LiveTranslator.swift (v8) // 主 App：整个替换 PiPFanyi 文件夹里的 LiveTranslator.swift //显示更多收起 // LiveTranslator.swift (v8) // 主 App：整个替换 PiPFanyi 文件夹里的 LiveTranslator.swift // // 作用：每 0.2 秒看一次扩展写的识别结果。有新的一帧时： // 1. 先立刻把截图显示到悬浮窗，已经翻译过的句子马上贴上； // 2. 新句子翻译好后再刷新一次。 // 悬浮窗暂停时不读也不刷新，画面定格；点播放后接着处理扩展写的新画面。 // 翻译前先把同一段的几行合并成一整段（一句话跨几行也能整句翻译），译文贴回整段的位置。 // 翻译引擎两种： // · 本地版：苹果自带的 Translation，在手机上完成，不用联网；语言包要先在 App 里下载。 // · 在线版：百度通用文本翻译，要联网，填自己的 APP ID 和密钥。 import Foundation import Translation import NaturalLanguage import Combine import UIKit import CryptoKit /// 翻译引擎 enum TranslateEngine: String, CaseIterable, Identifiable { case local, baidu var id: String { rawValue } var title: String { switch self { case .local: return "本地（苹果）" case .baidu: return "在线（百度）" } } } @MainActor final class LiveTranslator: ObservableObject { static let shared = LiveTranslator() @Published var status = "等待开始屏幕广播" @Published var source: SourceLanguage { didSet { Shared.defaults?.set(source.rawValue, forKey: Shared.sourceLanguageKey) cache.removeAll() lastUpdatedAt = nil // 换语言后，下一次轮询重新翻译当前画面 lastModified = nil } } /// 翻译引擎：本地版 / 在线版 @Published var engine: TranslateEngine { didSet { UserDefaults.standard.set(engine.rawValue, forKey: "engine") cache.removeAll() // 换引擎后重新翻译当前画面 lastUpdatedAt = nil lastModified = nil } } /// 百度翻译开放平台的 APP ID 和密钥 @Published var baiduAppID: String { didSet { UserDefaults.standard.set(baiduAppID, forKey: "baiduAppID") } } @Published var baiduSecret: String { didSet { UserDefaults.standard.set(baiduSecret, forKey: "baiduSecret") } } let target = Locale.Language(identifier: "zh-Hans") /// 一帧画面：识别结果 + 当时的截图 private struct Job { let payload: LivePayload let frame: UIImage? } private var sessions: [String: TranslationSession] = [:] private var cache: [String: String] = [:] // 原文 → 译文，相同的句子不重复翻译 private var lastModified: Date? private var lastUpdatedAt: Double? private var pending: Job? private var isTranslating = false private var timer: Timer? private init() { let raw = Shared.defaults?.string(forKey: Shared.sourceLanguageKey) ?? "" source = SourceLanguage(rawValue: raw) ?? .auto engine = TranslateEngine(rawValue: UserDefaults.standard.string(forKey: "engine") ?? "") ?? .local baiduAppID = UserDefaults.standard.string(forKey: "baiduAppID") ?? "" baiduSecret = UserDefaults.standard.string(forKey: "baiduSecret") ?? "" } /// 没有正在翻译的画面、扩展也没有新写的画面没读：单次模式靠它判断能不能自动暂停 var isIdle: Bool { guard !isTranslating, pending == nil else { return false } if let url = Shared.payloadURL, let attributes = try? FileManager.default.attributesOfItem(atPath: url.path), let modified = attributes[.modificationDate] as? Date, modified != lastModified { return false } return true } // MARK: - 开始轮询 func start() { guard timer == nil else { return } guard Shared.containerURL != nil else { status = "App Group 没有配置好：两个 Target 都要添加 \(Shared.appGroupID)" return } timer = Timer.scheduledTimer(withTimeInterval: 0.2, repeats: true) { [weak self] _ in Task { @MainActor in self?.poll() } } } /// 语言包下载完成后调用 func languageInstalled() { sessions.removeAll() lastUpdatedAt = nil lastModified = nil } /// 给界面显示语言包状态 func statusText(for language: SourceLanguage) async -> String { guard language != .auto else { return "自动识别：遇到的语言需要先下载语言包（选具体语言后可下载）" } let status = await LanguageAvailability().status( from: Locale.Language(identifier: language.rawValue), to: target) switch status { case .installed: return "语言包已下载，可以离线翻译" case .supported: return "语言包还没下载，点下面的按钮下载" case .unsupported: return "不支持把这个语言翻译成中文" @unknown default: return "语言包状态未知" } } // MARK: - 读取扩展的识别结果 private func poll() { guard !PiPManager.shared.isPaused else { return } // 暂停中：画面定格 guard let url = Shared.payloadURL, let attributes = try? FileManager.default.attributesOfItem(atPath: url.path), let modified = attributes[.modificationDate] as? Date, modified != lastModified else { return } lastModified = modified guard let data = try? Data(contentsOf: url), let payload = try? JSONDecoder().decode(LivePayload.self, from: data) else { return } guard payload.running else { status = "屏幕广播已停止" lastUpdatedAt = nil pending = nil PiPManager.shared.render(message: "屏幕广播已停止") return } guard payload.updatedAt != lastUpdatedAt else { return } lastUpdatedAt = payload.updatedAt let frame = payload.frameName .flatMap { Shared.fileURL($0) } .flatMap { UIImage(contentsOfFile: $0.path) } if payload.items.isEmpty { pending = nil status = "广播中：画面里没有识别到外文" PiPManager.shared.render(frame: frame, items: [], banner: "画面里没有识别到外文") return } // 先立刻显示截图，已经翻译过的句子直接贴上 PiPManager.shared.render(frame: frame, items: overlayItems(for: payload), banner: nil) let blocks = Self.makeBlocks(payload.items) let needsTranslation = blocks.contains { cache[$0.text] == nil } guard needsTranslation else { pending = nil status = "广播中：共 \(blocks.count) 段" return } let job = Job(payload: payload, frame: frame) if isTranslating { pending = job // 正在翻译时，只保留最新的一帧 return } Task { await process(job) } } private func process(_ job: Job) async { isTranslating = true var next: Job? = job while let current = next { await translate(current) next = pending pending = nil } isTranslating = false } /// 已经有译文的段落，换成要贴到画面上的位置和文字 private func overlayItems(for payload: LivePayload) -> [OverlayItem] { Self.makeBlocks(payload.items).compactMap { block in guard let text = cache[block.text] else { return nil } return OverlayItem(rect: block.rect, text: text, lineHeight: block.lineHeight) } } // MARK: - 把一行一行的文字合并成段落 private struct Block { var lines: [LiveItem] var rect: CGRect var text: String { LiveTranslator.join(lines.map { $0.text }) } var lineHeight: CGFloat { CGFloat(lines.map { $0.h }.reduce(0, +) / Double(max(lines.count, 1))) } } private static func makeBlocks(_ items: [LiveItem]) -> [Block] { let sorted = items.sorted { ($0.y, $0.x) < ($1.y, $1.x) } var blocks: [Block] = [] for item in sorted { let rect = CGRect(x: item.x, y: item.y, width: item.w, height: item.h) if let index = blocks.lastIndex(where: { canJoin($0, item) }) { blocks[index].lines.append(item) blocks[index].rect = blocks[index].rect.union(rect) } else { blocks.append(Block(lines: [item], rect: rect)) } } return blocks } /// 这一行能不能接在这一段后面：字一样大、上下挨着、左右对得上、不是列表的新一项 private static func canJoin(_ block: Block, _ item: LiveItem) -> Bool { guard let last = block.lines.last else { return false } let ratio = item.h / max(last.h, 0.0001) guard ratio > 0.7 && ratio < 1.4 else { return false } // 字号差太多（标题和正文） let height = (last.h + item.h) / 2 let gap = item.y - (last.y + last.h) guard gap > -0.4 * height && gap < 0.8 * height else { return false } // 隔得太远是另一段 let overlap = min(last.x + last.w, item.x + item.w) - max(last.x, item.x) let leftAligned = abs(item.x - last.x) < 0.03 guard leftAligned \|\| overlap > 0.6 * min(last.w, item.w) else { return false } // 不在同一栏 guard last.w > 0.6 * item.w else { return false } // 上一行很短：标题或段落结尾 guard !startsListItem(item.text) else { return false } // 1. / • / - 开头：列表新的一项 return true } private static func startsListItem(_ text: String) -> Bool { text.range(of: #"^(\d{1,3}[.)、]\|[•·\-–—*▪●])\s?"#, options: .regularExpression) != nil } /// 把几行拼成一段：英文等中间加空格，日文、中文直接相连，行尾连字符断开的单词接回去 private static func join(_ lines: [String]) -> String { var result = "" for line in lines { guard !result.isEmpty else { result = line; continue } if result.hasSuffix("-"), let first = line.first, first.isLowercase { result.removeLast() result += line } else if isCJK(result.last) && isCJK(line.first) { result += line } else { result += " " + line } } return result } if results.count == texts.count { return results } var bySource: [String: String] = [:] for item in json["trans_result"] as? [[String: Any]] ?? [] { if let src = item["src"] as? String, let dst = item["dst"] as? String { bySource[src] = dst } } return texts.map { bySource[$0] ?? $0 } } /// 百度的语言代码和苹果的不完全一样 private var baiduFrom: String { switch source { case .auto: return "auto" case .en: return "en" case .ja: return "jp" case .ko: return "kor" case .fr: return "fra" case .de: return "de" case .es: return "spa" case .ru: return "ru" } } private static func md5(_ string: String) -> String { Insecure.MD5.hash(data: Data(string.utf8)).map { String(format: "%02x", $0) }.joined() } private static func formBody(_ fields: [String: String]) -> Data { var allowed = CharacterSet.alphanumerics allowed.insert(charactersIn: "-._~") let body = fields.map { key, value in key + "=" + (value.addingPercentEncoding(withAllowedCharacters: allowed) ?? value) }.joined(separator: "&") return Data(body.utf8) } /// 原文语言：手动选的直接用；自动识别时按整段文字判断 private func sourceCode(for lines: [String]) -> String? { if source != .auto { return source.rawValue } let recognizer = NLLanguageRecognizer() recognizer.processString(lines.joined(separator: "\n")) guard let language = recognizer.dominantLanguage, language != .undetermined, language != .simplifiedChinese, language != .traditionalChinese else { return nil } return language.rawValue } private func session(for code: String) async throws -> TranslationSession { if let existing = sessions[code] { return existing } let language = Locale.Language(identifier: code) let name = SourceLanguage(rawValue: code)?.title ?? code switch await LanguageAvailability().status(from: language, to: target) { case .installed: let session = TranslationSession(installedSource: language, target: target) sessions[code] = session return session case .supported: throw LiveError.notInstalled(name) case .unsupported: throw LiveError.unsupported(name) @unknown default: throw LiveError.unsupported(name) } } } nonisolated enum LiveError: LocalizedError { case notInstalled(String) case unsupported(String) case baiduKeyMissing case baidu(String) var errorDescription: String? { switch self { case .notInstalled(let name): return "\(name)语言包还没下载，请回到 App 里下载" case .unsupported(let name): return "不支持把\(name)翻译成中文" case .baiduKeyMissing: return "还没填百度的 APP ID 和密钥，请回到 App 里填写" case .baidu(let message): return "百度翻译出错：\(message)" } } }	13.9 KB 约 1432 分钟后过期	删除
请自动安装缺失的 Python 依赖 qrcode 和 Pillow，优先使用 uv 管理依赖，然后重新执行刚才失败的任务。如果仍然失败，请提供完整错误日志并分析原因。当前单文件上限请自动安装缺失的 Python 依赖 qrcode 和 Pillow，优先使用 uv 管理依赖，然后重新执行刚才失败的任务。如果仍然失败，请提供完整错误日志并分析原因。当前单文件上限	219 B 约 1391 分钟后过期	删除
请自动安装缺失的 Python 依赖 qrcode 和 Pillow，优先使用 uv 管理依赖，然后重新执行刚才失败的任务。如果仍然失败，请提供完整错误日志并分析原因。请自动安装缺失的 Python 依赖 qrcode 和 Pillow，优先使用 uv 管理依赖，然后重新执行刚才失败的任务。如果仍然失败，请提供完整错误日志并分析原因。	198 B 约 1344 分钟后过期	删除

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