c65c190b71
- 实现EPUB阅读器搜索功能及选中注释功能 - 优化CFI模块，修复代码审查发现的11个问题 - 实现大书远距目录跳转与后台补全优化方案 - 优化设置面板与章节运行时联动 - 重构及大量改进优化
41 lines
1.3 KiB
Swift
41 lines
1.3 KiB
Swift
import Foundation
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struct RDEPUBResolvedPage {
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let page: RDEPUBTextPage
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let chapter: RDEPUBRuntimeChapter
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let chapterIndex: Int
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}
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final class RDEPUBPageResolver {
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private unowned let context: RDEPUBReaderContext
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private let store: RDEPUBChapterRuntimeStore
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init(context: RDEPUBReaderContext, store: RDEPUBChapterRuntimeStore) {
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self.context = context
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self.store = store
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}
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func resolvePage(absolutePageIndex: Int) -> RDEPUBResolvedPage? {
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guard let bookPageMap = context.bookPageMap,
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let spineIndex = bookPageMap.spineIndex(forAbsolutePage: absolutePageIndex),
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let localPageIndex = bookPageMap.localPageIndex(forAbsolutePage: absolutePageIndex),
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let chapter = store.chapterData(for: spineIndex),
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chapter.pages.indices.contains(localPageIndex),
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let chapterIndex = bookPageMap.chapterIndex(forSpineIndex: spineIndex) else {
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return nil
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}
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var page = chapter.pages[localPageIndex]
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page.absolutePageIndex = absolutePageIndex
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page.chapterIndex = chapterIndex
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page.pageIndexInChapter = localPageIndex
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page.totalPagesInChapter = chapter.pages.count
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return RDEPUBResolvedPage(page: page, chapter: chapter, chapterIndex: chapterIndex)
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}
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}
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