306 lines
11 KiB
Swift
306 lines
11 KiB
Swift
import UIKit
|
||
|
||
// MARK: - 文件说明
|
||
|
||
/// EPUB 阅读器主控制器
|
||
/// EPUBUI 层的核心入口，提供开箱即用的完整阅读器体验
|
||
/// 调用方只需传入 EPUB 文件 URL 或已构建的 TextBook，即可呈现完整的阅读界面
|
||
///
|
||
/// **架构位置：** EPUBUI（最顶层）→ Core → Parser → Foundation
|
||
///
|
||
/// **核心职责：**
|
||
/// - EPUB 解析与分页（支持流式排版和固定布局）
|
||
/// - 阅读位置的持久化与恢复
|
||
/// - 高亮、书签的增删改查
|
||
/// - 工具栏、目录、设置等 UI 面板的协调管理
|
||
/// - 搜索功能（全文搜索、前后跳转）
|
||
///
|
||
/// **打开流程：** init(epubURL:) → viewDidLoad → RDEPUBParser.parse → paginatePublication → readerView.reloadData → restoreLocation
|
||
|
||
// MARK: - 阅读器主控制器
|
||
|
||
public final class RDEPUBReaderController: UIViewController {
|
||
|
||
// MARK: - 公开属性
|
||
|
||
/// 阅读器委托，用于接收阅读状态变更通知
|
||
public weak var delegate: RDEPUBReaderDelegate?
|
||
|
||
/// 阅读器配置，修改后自动判断是否需要重新分页或刷新内容
|
||
public var configuration: RDEPUBReaderConfiguration {
|
||
didSet {
|
||
readerContext.configuration = configuration
|
||
persistReaderSettingsIfNeeded()
|
||
guard isViewLoaded else { return }
|
||
let oldConfiguration = oldValue
|
||
applyReaderViewConfiguration()
|
||
|
||
if isExternalTextBook {
|
||
if requiresRepagination(from: oldConfiguration, to: configuration) {
|
||
rebuildExternalTextBook()
|
||
} else if requiresVisibleRefresh(from: oldConfiguration, to: configuration) {
|
||
refreshVisibleContentPreservingLocation()
|
||
}
|
||
return
|
||
}
|
||
|
||
guard publication != nil else { return }
|
||
if requiresRepagination(from: oldConfiguration, to: configuration) {
|
||
repaginatePreservingCurrentLocation()
|
||
} else if requiresVisibleRefresh(from: oldConfiguration, to: configuration) {
|
||
refreshVisibleContentPreservingLocation()
|
||
}
|
||
}
|
||
}
|
||
|
||
/// 当前阅读位置
|
||
public var currentLocation: RDEPUBLocation? {
|
||
currentVisibleLocation()
|
||
}
|
||
|
||
/// 当前页码（从 1 开始），nil 表示尚未加载
|
||
public var currentPageNumber: Int? {
|
||
guard readerView.currentPage >= 0 else { return nil }
|
||
return readerView.currentPage + 1
|
||
}
|
||
|
||
/// 当前用户选中的文本（只读），用于创建高亮/批注
|
||
public internal(set) var currentSelection: RDEPUBSelection? {
|
||
get { readerContext.currentSelection }
|
||
set { readerContext.currentSelection = newValue }
|
||
}
|
||
|
||
/// 所有高亮标注
|
||
public var highlights: [RDEPUBHighlight] {
|
||
activeHighlights
|
||
}
|
||
|
||
/// 所有书签
|
||
public var bookmarks: [RDEPUBBookmark] {
|
||
activeBookmarks
|
||
}
|
||
|
||
/// 统一标注语义视图，对标 WXRead 的 WRBookmark 主模型。
|
||
public var annotations: [RDEPUBAnnotation] {
|
||
let merged = activeHighlights.map(\.annotation) + activeBookmarks.map(\.annotation)
|
||
return merged.sorted { $0.createdAt < $1.createdAt }
|
||
}
|
||
|
||
/// 原始目录树结构
|
||
public var tableOfContents: [EPUBTableOfContentsItem] {
|
||
publication?.tableOfContents ?? []
|
||
}
|
||
|
||
/// 展平后的目录列表（用于目录面板展示，每个条目附带页码）
|
||
public var flattenedTableOfContents: [RDEPUBReaderTableOfContentsItem] {
|
||
guard let publication else { return [] }
|
||
return flattenedTableOfContentsItems(from: publication.tableOfContents)
|
||
}
|
||
|
||
/// 当前阅读位置所在的目录项
|
||
public var currentTableOfContentsItem: RDEPUBReaderTableOfContentsItem? {
|
||
resolvedCurrentTableOfContentsItem()
|
||
}
|
||
|
||
// MARK: - 私有属性
|
||
|
||
/// EPUB 文件 URL
|
||
let epubURL: URL
|
||
let persistence: RDEPUBReaderPersistence?
|
||
let dependencies: RDEPUBReaderDependencies
|
||
let readerView = RDReaderView()
|
||
let loadingIndicator: UIActivityIndicatorView = {
|
||
UIActivityIndicatorView(style: .large)
|
||
}()
|
||
let errorLabel: UILabel = {
|
||
let label = UILabel()
|
||
label.numberOfLines = 0
|
||
label.textAlignment = .center
|
||
label.textColor = .darkGray
|
||
label.isHidden = true
|
||
return label
|
||
}()
|
||
let paginationHostView = UIView()
|
||
lazy var readerContext = RDEPUBReaderContext(controller: self)
|
||
|
||
var parser: RDEPUBParser? {
|
||
get { readerContext.parser }
|
||
set { readerContext.parser = newValue }
|
||
}
|
||
var publication: RDEPUBPublication? {
|
||
get { readerContext.publication }
|
||
set { readerContext.publication = newValue }
|
||
}
|
||
var readingSession: RDEPUBReadingSession? {
|
||
get { readerContext.readingSession }
|
||
set { readerContext.readingSession = newValue }
|
||
}
|
||
var textBook: RDEPUBTextBook? {
|
||
get { readerContext.textBook }
|
||
set { readerContext.textBook = newValue }
|
||
}
|
||
var activePages: [EPUBPage] {
|
||
readerContext.activePages
|
||
}
|
||
var activeChapters: [EPUBChapterInfo] {
|
||
readerContext.activeChapters
|
||
}
|
||
var activeBookmarks: [RDEPUBBookmark] {
|
||
get { readerContext.activeBookmarks }
|
||
set { readerContext.activeBookmarks = newValue }
|
||
}
|
||
var activeHighlights: [RDEPUBHighlight] {
|
||
get { readerContext.activeHighlights }
|
||
set { readerContext.activeHighlights = newValue }
|
||
}
|
||
lazy var topToolView = runtime.makeTopToolView()
|
||
lazy var bottomToolView = runtime.makeBottomToolView()
|
||
var currentBookIdentifier: String? {
|
||
get { readerContext.currentBookIdentifier }
|
||
set { readerContext.currentBookIdentifier = newValue }
|
||
}
|
||
var textBookCache: RDEPUBTextBookCache { readerContext.textBookCache }
|
||
var currentBrightness: CGFloat {
|
||
get { readerContext.currentBrightness }
|
||
set { readerContext.currentBrightness = newValue }
|
||
}
|
||
var didStartInitialLoad: Bool {
|
||
get { readerContext.didStartInitialLoad }
|
||
set { readerContext.didStartInitialLoad = newValue }
|
||
}
|
||
var isRepaginating: Bool {
|
||
get { readerContext.isRepaginating }
|
||
set { readerContext.isRepaginating = newValue }
|
||
}
|
||
var lastTextPaginationPageSize: CGSize? {
|
||
get { readerContext.lastTextPaginationPageSize }
|
||
set { readerContext.lastTextPaginationPageSize = newValue }
|
||
}
|
||
var isReconcilingTextPaginationSize = false
|
||
var paginationToken: UUID {
|
||
get { readerContext.paginationToken }
|
||
set { readerContext.paginationToken = newValue }
|
||
}
|
||
var paginator: RDEPUBPaginator? {
|
||
get { readerContext.paginator }
|
||
set { readerContext.paginator = newValue }
|
||
}
|
||
var searchState: RDEPUBSearchState? {
|
||
get { readerContext.searchState }
|
||
set { readerContext.searchState = newValue }
|
||
}
|
||
var isExternalTextBook: Bool {
|
||
get { readerContext.isExternalTextBook }
|
||
set { readerContext.isExternalTextBook = newValue }
|
||
}
|
||
var textFileURL: URL? {
|
||
get { readerContext.textFileURL }
|
||
set { readerContext.textFileURL = newValue }
|
||
}
|
||
lazy var readerAssemblyCoordinator = RDEPUBReaderAssemblyCoordinator(context: readerContext)
|
||
lazy var runtime = RDEPUBReaderRuntime(context: readerContext)
|
||
|
||
// MARK: - 初始化
|
||
|
||
/// 使用 EPUB 文件 URL 初始化阅读器
|
||
/// 会自动从持久化存储中恢复用户的阅读偏好设置
|
||
/// - Parameters:
|
||
/// - epubURL: EPUB 文件的本地 URL
|
||
/// - configuration: 阅读器配置，默认使用 .default
|
||
/// - persistence: 持久化策略，默认使用 UserDefaults
|
||
public init(
|
||
epubURL: URL,
|
||
configuration: RDEPUBReaderConfiguration = .default,
|
||
persistence: RDEPUBReaderPersistence? = RDEPUBUserDefaultsPersistence(),
|
||
dependencies: RDEPUBReaderDependencies = .live
|
||
) {
|
||
let persistedSettings = persistence?.loadReaderSettings()
|
||
self.epubURL = epubURL
|
||
self.configuration = persistedSettings?.applying(to: configuration) ?? configuration
|
||
self.persistence = persistence
|
||
self.dependencies = dependencies
|
||
let brightness = max(0, min(1, persistedSettings?.brightness ?? dependencies.environment.currentBrightness))
|
||
super.init(nibName: nil, bundle: nil)
|
||
// Sync context after super.init
|
||
readerContext.dependencies = dependencies
|
||
readerContext.configuration = self.configuration
|
||
readerContext.epubURL = epubURL
|
||
readerContext.persistence = persistence
|
||
self.currentBrightness = brightness
|
||
}
|
||
|
||
required init?(coder: NSCoder) {
|
||
fatalError("init(coder:) has not been implemented")
|
||
}
|
||
|
||
/// 使用已构建的 TextBook 初始化，跳过 EPUB 解析流程
|
||
/// 适用于 TXT 等纯文本文件，调用方需自行构建 TextBook
|
||
/// - Parameters:
|
||
/// - textBook: 已分页的 TextBook 实例
|
||
/// - bookIdentifier: 书籍唯一标识符，用于持久化
|
||
/// - title: 书籍标题
|
||
/// - textFileURL: 原始文本文件 URL，用于重建 TextBook
|
||
/// - configuration: 阅读器配置
|
||
/// - persistence: 持久化策略
|
||
public convenience init(
|
||
textBook: RDEPUBTextBook,
|
||
bookIdentifier: String,
|
||
title: String,
|
||
textFileURL: URL? = nil,
|
||
configuration: RDEPUBReaderConfiguration = .default,
|
||
persistence: RDEPUBReaderPersistence? = RDEPUBUserDefaultsPersistence(),
|
||
dependencies: RDEPUBReaderDependencies = .live
|
||
) {
|
||
let persistedSettings = persistence?.loadReaderSettings()
|
||
let resolvedConfig = persistedSettings?.applying(to: configuration) ?? configuration
|
||
|
||
self.init(
|
||
epubURL: URL(string: "about:blank")!,
|
||
configuration: resolvedConfig,
|
||
persistence: persistence,
|
||
dependencies: dependencies
|
||
)
|
||
self.isExternalTextBook = true
|
||
self.textBook = textBook
|
||
self.textFileURL = textFileURL
|
||
self.currentBookIdentifier = bookIdentifier
|
||
self.title = title
|
||
self.didStartInitialLoad = true
|
||
}
|
||
|
||
public override func viewDidLoad() {
|
||
super.viewDidLoad()
|
||
currentBrightness = currentBrightness
|
||
readerAssemblyCoordinator.assembleInterface()
|
||
readerAssemblyCoordinator.finishExternalTextBookLaunchIfNeeded()
|
||
}
|
||
|
||
public override func viewWillAppear(_ animated: Bool) {
|
||
super.viewWillAppear(animated)
|
||
navigationController?.setNavigationBarHidden(true, animated: animated)
|
||
navigationController?.interactivePopGestureRecognizer?.delegate = self
|
||
navigationController?.interactivePopGestureRecognizer?.isEnabled = true
|
||
}
|
||
|
||
public override func viewWillDisappear(_ animated: Bool) {
|
||
super.viewWillDisappear(animated)
|
||
navigationController?.setNavigationBarHidden(false, animated: animated)
|
||
}
|
||
|
||
public override func viewDidAppear(_ animated: Bool) {
|
||
super.viewDidAppear(animated)
|
||
startInitialLoadIfNeeded()
|
||
}
|
||
|
||
public override func viewDidLayoutSubviews() {
|
||
super.viewDidLayoutSubviews()
|
||
runtime.viewportMonitor.viewDidLayoutSubviews()
|
||
}
|
||
|
||
public override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
|
||
super.viewWillTransition(to: size, with: coordinator)
|
||
runtime.viewportMonitor.viewWillTransition(with: coordinator)
|
||
}
|
||
|
||
}
|