8b68975ee1
- 新增 RDEPUBTextStatisticsCoordinator:后台单线程按章渲染统计全书字符数,footer 显示精确阅读百分比;统计未就绪时(含 PageMap 未覆盖的 loading 页)显示"计算中",不再回退旧页码 - 统计结果按 bookID + renderSignature + 章节内容哈希做磁盘缓存,布局/字号变化自动失效;缓存命中不创建 renderer - 移除"0.8 秒翻页时间窗轮询让路"逻辑,后续由事件驱动的交互加载门替代(见方案文档 5.6 节) - 新增 Doc/FeatureSolution/TEXT_STATISTICS_PIPELINE_OPTIMIZATION.md:三条渲染流水线收敛为"交互 + 生产者"、交互加载门、全局后台渲染预算池、后台渲染登记表、两阶段近似百分比、自适应并发的完整优化方案与验收标准 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
86 lines
3.5 KiB
Swift
86 lines
3.5 KiB
Swift
import Foundation
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final class RDEPUBReaderLoadCoordinator {
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private weak var context: RDEPUBReaderContext?
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init(context: RDEPUBReaderContext) {
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self.context = context
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}
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func startInitialLoadIfNeeded() {
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guard let context, let controller = context.controller,
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let readerView = context.readerView,
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!controller.didStartInitialLoad,
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readerView.bounds.width > 0,
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readerView.bounds.height > 0 else {
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return
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}
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controller.didStartInitialLoad = true
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loadPublication()
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}
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func loadPublication() {
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guard let context else { return }
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context.showLoading()
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let loadToken = UUID()
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context.paginationToken = loadToken
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DispatchQueue.global(qos: .userInitiated).async { [weak self] in
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guard let self, let context = self.context, let controller = context.controller else { return }
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let parser = context.makeParser()
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do {
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try parser.parse(epubURL: controller.epubURL)
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let publication = parser.makePublication()
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let bookIdentifier = parser.metadata.identifier ?? controller.epubURL.lastPathComponent
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let restoreLocation = controller.persistence?.loadLocation(for: bookIdentifier)
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let bookmarks = controller.persistence?.loadBookmarks(for: bookIdentifier) ?? []
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let highlights = controller.persistence?.loadHighlights(for: bookIdentifier) ?? []
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DispatchQueue.main.async { [weak self] in
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guard let self, let context = self.context else { return }
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guard context.paginationToken == loadToken else { return }
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context.runtime?.applyParsedPublication(
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parser: parser,
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publication: publication,
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bookIdentifier: bookIdentifier,
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restoreLocation: restoreLocation,
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bookmarks: bookmarks,
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highlights: highlights
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)
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}
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} catch {
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DispatchQueue.main.async { [weak self] in
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guard let self, let context = self.context else { return }
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guard context.paginationToken == loadToken else { return }
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context.handle(error: error)
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}
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}
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}
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}
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func applyParsedPublication(
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parser: RDEPUBParser,
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publication: RDEPUBPublication,
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bookIdentifier: String,
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restoreLocation: RDEPUBLocation?,
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bookmarks: [RDEPUBBookmark],
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highlights: [RDEPUBHighlight]
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) {
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guard let context, let controller = context.controller else { return }
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context.parser = parser
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context.publication = publication
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context.currentBookIdentifier = bookIdentifier
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context.activeBookmarks = bookmarks
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context.activeHighlights = highlights
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context.readingSession = RDEPUBReadingSession(publication: publication)
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controller.title = parser.metadata.title.isEmpty
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? controller.epubURL.deletingPathExtension().lastPathComponent
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: parser.metadata.title
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controller.applyReaderViewConfiguration()
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context.updateReaderChrome()
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controller.delegate?.epubReader(controller, didOpen: publication)
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context.runtime?.paginatePublication(restoreLocation: restoreLocation)
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}
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}
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