6ed3fcb071
- 设置页打开时仅重新计算当前章节预览，关闭后触发完整补全 - 新增 preview 加载优先级，支持设置页内当前章预览 - 添加设置页防抖机制，合并连续字号/行距变更 - 支持下滑手势关闭设置页，通过 presentation delegate 通知运行时 - 重新分页时跳过导航和尺寸校验，避免状态冲突 - currentTextPageSize 线程安全优化，后台线程使用缓存尺寸 - 更新 CocoaPods 依赖 Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
255 lines
10 KiB
Swift
255 lines
10 KiB
Swift
import UIKit
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/// EPUB 阅读器 Chrome 协调器：负责顶部/底部工具栏的创建、更新和交互处理。
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///
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/// 职责：
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/// - 创建并配置顶部工具栏（返回、书签按钮）
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/// - 创建并配置底部工具栏（目录、书签、高亮、设置按钮）
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/// - 同步工具栏的主题和状态
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/// - 弹出设置面板和目录面板
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/// - 处理返回按钮的关闭逻辑
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final class RDEPUBReaderChromeCoordinator: NSObject, UIAdaptivePresentationControllerDelegate {
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private unowned let context: RDEPUBReaderContext
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init(context: RDEPUBReaderContext) {
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self.context = context
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}
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private var controller: RDEPUBReaderController? {
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context.controller
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}
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// MARK: - UIAdaptivePresentationControllerDelegate
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func presentationControllerDidDismiss(_ presentationController: UIPresentationController) {
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// 设置页面被用户下滑关闭时
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context.runtime?.settingsPanelDidDisappear()
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}
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/// 创建顶部工具栏视图，绑定返回、搜索和书签切换回调。
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func makeTopToolView() -> RDEPUBReaderTopToolView {
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let toolView = RDEPUBReaderTopToolView()
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toolView.onBack = { [weak self] in
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self?.handleBackAction()
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}
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toolView.onSearch = { [weak self] in
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self?.toggleSearchBar()
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}
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toolView.onToggleBookmark = { [weak self] in
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_ = self?.context.runtime?.toggleBookmark()
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}
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return toolView
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}
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/// 创建底部工具栏视图，绑定目录、书签、高亮、设置等回调。
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func makeBottomToolView() -> RDEPUBReaderBottomToolView {
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let toolView = RDEPUBReaderBottomToolView()
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toolView.onShowTableOfContents = { [weak self] in
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self?.presentTableOfContents()
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}
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toolView.onShowBookmarks = { [weak self] in
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self?.context.runtime?.presentBookmarksManager()
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}
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toolView.onShowHighlights = { [weak self] in
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self?.context.runtime?.presentHighlightsManager()
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}
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toolView.onAddHighlight = { [weak self] in
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self?.context.runtime?.presentAnnotationCreation()
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}
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toolView.onShowSettings = { [weak self] in
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self?.presentSettings()
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}
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return toolView
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}
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/// 同步更新顶部和底部工具栏的主题、标题、按钮可用性等状态。
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func updateReaderChrome() {
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guard let controller else { return }
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let uiState = makeUIState()
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applyUIState(uiState)
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updateSearchBar()
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}
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/// 构建当前 UI 状态快照
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func makeUIState() -> RDEPUBReaderUIState {
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guard let controller else { return .empty }
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return RDEPUBReaderUIState(
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canToggleBookmark: controller.currentBookIdentifier != nil,
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hasBookmarkAtCurrentLocation: hasBookmarkAtCurrentLocation(),
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canShowBookmarks: !controller.activeBookmarks.isEmpty,
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canAddHighlight: controller.configuration.allowsHighlights && context.selectionState.hasSelection,
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canShowHighlights: controller.configuration.allowsHighlights && !controller.activeHighlights.isEmpty,
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showsTableOfContents: controller.configuration.showsTableOfContents,
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allowsHighlights: controller.configuration.allowsHighlights,
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showsSettingsPanel: controller.configuration.showsSettingsPanel
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)
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}
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/// 将 UI 状态应用到顶部和底部工具栏
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func applyUIState(_ state: RDEPUBReaderUIState) {
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guard let controller else { return }
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controller.topToolView.apply(theme: controller.configuration.theme)
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controller.topToolView.setTitle(
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controller.title
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?? controller.parser?.metadata.title
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?? controller.epubURL.deletingPathExtension().lastPathComponent
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)
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controller.topToolView.setBookmarkEnabled(state.canToggleBookmark)
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controller.topToolView.setBookmarkSelected(state.hasBookmarkAtCurrentLocation)
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controller.bottomToolView.apply(theme: controller.configuration.theme)
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controller.bottomToolView.updateVisibility(
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showsTableOfContents: state.showsTableOfContents,
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allowsHighlights: state.allowsHighlights,
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showsSettingsPanel: state.showsSettingsPanel
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)
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controller.bottomToolView.setBookmarksEnabled(state.canShowBookmarks)
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controller.bottomToolView.setAddHighlightEnabled(state.canAddHighlight)
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controller.bottomToolView.setHighlightsEnabled(state.canShowHighlights)
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}
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/// 判断当前位置是否有书签
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private func hasBookmarkAtCurrentLocation() -> Bool {
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guard let controller else { return false }
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return context.runtime?.annotationCoordinator.currentBookmark() != nil
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}
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/// 弹出阅读设置面板（字号、字体、行距、分栏、主题、亮度等）。
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func presentSettings() {
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guard let controller else { return }
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guard controller.configuration.showsSettingsPanel else { return }
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// 通知 Runtime 设置页面即将打开
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context.runtime?.settingsPanelWillAppear()
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let settingsController = RDEPUBReaderSettingsViewController(
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configuration: controller.configuration,
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brightness: controller.currentBrightness
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)
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settingsController.onBrightnessChange = { [weak controller] brightness in
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controller?.setScreenBrightness(brightness)
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}
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settingsController.onFontSizeChange = { [weak controller] fontSize in
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controller?.updateConfiguration { $0.fontSize = fontSize }
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}
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settingsController.onFontChoiceChange = { [weak controller] fontChoice in
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controller?.updateConfiguration { $0.fontChoice = fontChoice }
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}
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settingsController.onLineHeightChange = { [weak controller] lineHeightMultiple in
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controller?.updateConfiguration { $0.lineHeightMultiple = lineHeightMultiple }
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}
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settingsController.onColumnCountChange = { [weak controller] numberOfColumns in
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controller?.updateConfiguration { $0.numberOfColumns = numberOfColumns }
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}
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settingsController.onDisplayTypeChange = { [weak controller] displayType in
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controller?.updateConfiguration { $0.displayType = displayType }
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}
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settingsController.onThemeChange = { [weak controller] theme in
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controller?.updateConfiguration { $0.theme = theme }
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}
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settingsController.onDismiss = { [weak self] in
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// 通知 Runtime 设置页面已关闭
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self?.context.runtime?.settingsPanelDidDisappear()
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}
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let navigationController = UINavigationController(rootViewController: settingsController)
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navigationController.modalPresentationStyle = .pageSheet
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navigationController.presentationController?.delegate = self
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controller.present(navigationController, animated: true)
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}
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/// 弹出目录列表面板，支持点击跳转到指定章节。
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func presentTableOfContents() {
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guard let controller else { return }
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guard controller.configuration.showsTableOfContents else { return }
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let items = controller.flattenedTableOfContentsItems(
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from: controller.publication?.tableOfContents ?? [],
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includePageNumbers: false
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)
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guard !items.isEmpty else { return }
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let chapterController = RDEPUBReaderChapterListController(
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items: items,
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currentItem: controller.currentTableOfContentsItem,
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theme: controller.configuration.theme
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)
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chapterController.onSelectItem = { [weak controller] item in
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guard let controller else { return }
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chapterController.dismiss(animated: true) {
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_ = controller.go(toTableOfContentsItem: item, animated: true)
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}
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}
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let navigationController = UINavigationController(rootViewController: chapterController)
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navigationController.modalPresentationStyle = .pageSheet
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controller.present(navigationController, animated: true)
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}
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/// 切换搜索栏的显示/隐藏状态。
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func toggleSearchBar() {
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guard let controller else { return }
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if controller.isSearchBarVisible {
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controller.hideSearchBar()
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} else {
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controller.showSearchBar()
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}
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}
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/// 同步搜索栏的主题和匹配计数。
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func updateSearchBar() {
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guard let controller else { return }
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controller.searchBarView.apply(theme: controller.configuration.theme)
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if let searchState = controller.searchState {
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if let index = searchState.currentMatchIndex {
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controller.searchBarView.updateMatchCount(current: index + 1, total: searchState.matches.count)
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} else if searchState.matches.isEmpty {
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controller.searchBarView.showNoResults()
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}
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}
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}
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/// 处理返回按钮点击，自动判断 pop 或 dismiss 方式关闭阅读器。
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func handleBackAction() {
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guard let controller else { return }
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close(controller)
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}
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private func close(_ controller: UIViewController) {
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let target = closestDismissTarget(from: controller)
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if let navigationController = target.navigationController,
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navigationController.viewControllers.first !== target {
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navigationController.popViewController(animated: true)
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return
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}
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if let navigationController = target.navigationController,
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navigationController.presentingViewController != nil {
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navigationController.dismiss(animated: true)
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return
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}
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if target.presentingViewController != nil {
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target.dismiss(animated: true)
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return
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}
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controller.dismiss(animated: true)
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}
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private func closestDismissTarget(from controller: UIViewController) -> UIViewController {
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var candidate: UIViewController = controller
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var current = controller.parent
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while let parent = current {
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if let navigationController = parent.navigationController,
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navigationController.viewControllers.contains(parent) {
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return parent
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}
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if parent.presentingViewController != nil || parent.navigationController?.presentingViewController != nil {
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return parent
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}
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candidate = parent
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current = parent.parent
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}
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return candidate
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}
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}
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