5.2 KiB
5.2 KiB
需求归档：ReadViewSDK v1.0
归档日期： 2026-05-22
核心价值： 稳定可用的 EPUB/TXT 阅读体验
结果说明
本归档按 milestone close 生成。v1.0 的实现与运行时证据整体达成，但由于 close-out 前未完全回写 requirement bookkeeping，以下需求状态分为：
Validated：实现、phase verification、summary metadata 三者一致Delivered with accepted gaps：实现和运行时证据存在，但 requirement bookkeeping 未完全对齐，作为已接受的归档缺口保留
v1 Requirements
渲染内核重构（Reflowable EPUB）
- REND-01：直接重构当前
.textReflowable路径，使 reflowable EPUB 不再依赖当前“简单DTCoreTextrenderer +pageRanges切页”模式，而是具备 WXRead 风格的页面级原生排版能力 - REND-02：在旧引擎基础上引入 WXRead 风格的 CSS 分层策略（
default / replace / dark / epub / user），并让样式作用于章节级 HTML →NSAttributedString转换过程 - REND-03：在旧引擎基础上引入自定义 DTCoreText 属性体系与页面级
NSAttributedString元数据，能够承载分页、块元素、图片、页面语义等布局信息 - REND-04：将当前简单的 CoreText 切页逻辑升级为具备页面语义的复杂分页器，具备与
WRCoreTextLayouter / WRCoreTextLayoutFrame核心能力等价的分页与页面布局控制能力
兼容性与主流程
- COMP-01：
RDURLReaderController/RDEPUBReaderController作为公开入口继续可用，.epub/.txt打开主流程不回归 - COMP-02：Fixed Layout EPUB 与交互式 EPUB 继续使用
WKWebView，行为不因本次改造产生回归 - COMP-03：reflowable EPUB 的阅读位置映射、高亮/选区、搜索结果定位、字号/行高/主题切换后的重新分页在新内核下继续可用
- COMP-04：当前翻页代码（
RDReaderView及现有 page curl / horizontal scroll / vertical scroll 交互逻辑）不做修改，新内核必须适配既有翻页容器
稳定性与验证
- STAB-01：至少 3 类样本书验证通过：纯文本/小说类、含图片与复杂段落样式的章节、含外链与多个 CSS 文件引用的章节
- STAB-02：以上样本在新内核下不出现崩溃、白屏、无限加载、严重错页或关键交互链路失效
Requirement Outcomes
| Requirement | Archived Outcome | Notes |
|---|---|---|
| REND-01 | Delivered with accepted gaps | Phase 2 established renderer/context path; audit still flagged bookkeeping incompleteness. |
| REND-02 | Delivered with accepted gaps | Phase 2 verification marked it satisfied; archive accepts missing checkbox sync. |
| REND-03 | Delivered with accepted gaps | Phase 3 implemented page metadata; requirement-level verification mapping was missing. |
| REND-04 | Delivered with accepted gaps | Phase 3 delivered stronger pagination semantics; requirement bookkeeping remained orphaned. |
| COMP-01 | Delivered with accepted gaps | Phase 4 restored reader main flow, but requirement mapping was not backfilled. |
| COMP-02 | Validated | Phase 1 fully documented and verified the WKWebView retention boundary. |
| COMP-03 | Delivered with accepted gaps | Phase 4 runtime evidence supports compatibility, though close-out evidence chain was incomplete. |
| COMP-04 | Delivered with accepted gaps | RDReaderView remained untouched across the milestone, but requirement metadata was not reconciled. |
| STAB-01 | Delivered with accepted gaps | Phase 5 5-book matrix covers required categories. |
| STAB-02 | Delivered with accepted gaps | Phase 5 runtime/UI evidence shows no sampled crash/blank-page regression. |
Out of Scope
| 功能 | 原因 |
|---|---|
| Fixed Layout EPUB 改为原生渲染 | 本次明确保留 WKWebView 路径以控制风险 |
| 交互式 EPUB 改为原生渲染 | 交互能力（JS/音视频/表单/iframe/外链/bridge）更适配 WKWebView，本次不改 |
修改当前翻页代码（RDReaderView / 现有翻页模式与交互逻辑） |
本次只重构 reflowable 渲染内核，不把翻页容器一起纳入改造 |
| 直接拷贝使用读书私有 JS/CSS/私有实现代码 | 只能参考设计与行为，不直接搬运私有实现 |
| 同时保留两套 reflowable 原生引擎 | 本次要求直接演进旧引擎，不维护双轨 |
Traceability
| Requirement | Phase | Final Status |
|---|---|---|
| REND-01 | Phase 2 | Delivered with accepted gaps |
| REND-02 | Phase 2 | Delivered with accepted gaps |
| REND-03 | Phase 3 | Delivered with accepted gaps |
| REND-04 | Phase 3 | Delivered with accepted gaps |
| COMP-01 | Phase 4 | Delivered with accepted gaps |
| COMP-02 | Phase 1 | Validated |
| COMP-03 | Phase 4 | Delivered with accepted gaps |
| COMP-04 | Phase 4 | Delivered with accepted gaps |
| STAB-01 | Phase 5 | Delivered with accepted gaps |
| STAB-02 | Phase 5 | Delivered with accepted gaps |
Coverage:
- v1 requirements: 10 total
- Archived as shipped: 10
- Strict audit passed without gaps: 1
- Archived with accepted evidence gaps: 9
Requirements defined: 2026-05-21
Archived: 2026-05-22 after milestone close with accepted audit gaps