refactor: 添加中文注释 + 优化模块结构
- 给全部 78 个 Swift 源文件添加详细的中文注释(文件级、类级、方法级) - 删除 LegacyRDReaderController/ 死代码目录(16 文件 4592 行) - 根目录翻页容器文件移入 ReaderView/ 目录 - Resources/ 移入 EPUBCore/Resources/(与使用者归属一致) - RDEPUBTextIndexTable.swift 移入 EPUBTextRendering/(消除反向依赖) - RDURLReaderController.swift 移入 EPUBUI/(入口控制器归入 UI 层) - 更新 podspec 资源路径
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@@ -1,28 +1,41 @@
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// RDEPUBResourceResolver.swift
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// EPUB 资源解析器
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// 封装 RDEPUBParser 的资源查询能力,提供 href 规范化、
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// spine 索引查找、位置规范化等高层接口。是 Services 层的核心组件,
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// 被 RDEPUBPublication 和 RDEPUBReadingSession 广泛使用。
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import Foundation
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/// EPUB 资源解析器,负责 URL 转换、href 规范化和位置解析
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public final class RDEPUBResourceResolver {
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/// 底层解析器引用
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private let parser: RDEPUBParser
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public init(parser: RDEPUBParser) {
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self.parser = parser
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}
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/// OPF 文件所在目录的 URL
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public var opfDirectoryURL: URL? {
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parser.opfDirectoryURL
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}
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/// 将相对路径转换为本地文件 URL
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public func fileURL(forRelativePath relativePath: String) -> URL? {
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parser.fileURL(forRelativePath: relativePath)
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}
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/// 将相对路径转换为 ss-reader://book/ 协议 URL
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public func resourceURL(forRelativePath relativePath: String) -> URL? {
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parser.resourceURL(forRelativePath: relativePath)
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}
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/// 将 ss-reader://book/ 协议 URL 还原为本地文件 URL
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public func fileURL(forResourceURL resourceURL: URL) -> URL? {
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parser.fileURL(forResourceURL: resourceURL)
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}
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/// 规范化 href:基于 OPF 目录和可选的 spine 索引,将相对路径解析为标准化的 OPF 内路径
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public func normalizedHref(_ href: String, relativeToSpineIndex spineIndex: Int? = nil) -> String? {
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guard let opfDirectoryURL else {
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return href.components(separatedBy: "#").first
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@@ -57,6 +70,7 @@ public final class RDEPUBResourceResolver {
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return pathPart
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}
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/// 规范化 href:基于另一个 href 作为基准路径
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public func normalizedHref(_ href: String, relativeToHref baseHref: String) -> String? {
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guard let opfDirectoryURL else {
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return href.components(separatedBy: "#").first
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@@ -79,6 +93,7 @@ public final class RDEPUBResourceResolver {
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return pathPart
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}
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/// 将相对于另一个 href 的引用转换为本地文件 URL
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public func fileURL(forReference href: String, relativeToHref baseHref: String) -> URL? {
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guard let normalizedHref = normalizedHref(href, relativeToHref: baseHref) else {
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return nil
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@@ -86,6 +101,7 @@ public final class RDEPUBResourceResolver {
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return fileURL(forRelativePath: normalizedHref)
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}
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/// 规范化位置对象:解析 href、保留 progression 和 fragment
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public func normalizedLocation(
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_ location: RDEPUBLocation,
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relativeToSpineIndex spineIndex: Int? = nil,
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@@ -119,12 +135,14 @@ public final class RDEPUBResourceResolver {
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)
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}
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/// 通过规范化 href 查找对应的 spine 索引
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public func spineIndex(forNormalizedHref normalizedHref: String) -> Int? {
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parser.spine.firstIndex { item in
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self.normalizedHref(item.href) == normalizedHref
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}
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}
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/// 通过位置查找对应的 spine 索引
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public func spineIndex(for location: RDEPUBLocation) -> Int? {
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guard let normalizedHref = normalizedHref(location.href) else {
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return nil
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@@ -132,6 +150,7 @@ public final class RDEPUBResourceResolver {
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return spineIndex(forNormalizedHref: normalizedHref)
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}
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/// 通过 spine 索引获取 href
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public func href(forSpineIndex spineIndex: Int) -> String? {
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guard parser.spine.indices.contains(spineIndex) else {
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return nil
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@@ -139,6 +158,7 @@ public final class RDEPUBResourceResolver {
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return parser.spine[spineIndex].href
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}
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/// 通过 spine 索引获取标题
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public func title(forSpineIndex spineIndex: Int) -> String? {
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guard parser.spine.indices.contains(spineIndex) else {
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return nil
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@@ -146,6 +166,7 @@ public final class RDEPUBResourceResolver {
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return parser.spine[spineIndex].title
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}
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/// 通过 href 查询 manifest 项
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public func manifestItem(forHref href: String) -> RDEPUBManifestItem? {
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let targetHref = normalizedHref(href) ?? href.components(separatedBy: "#").first ?? href
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return parser.manifest.values.first {
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