feat(web): unify reader TOC and bookmarks into one left nav drawer with tabs

docs/CHANGELOG_web.md

@@ -13,11 +13,11 @@ The format loosely follows Keep a Changelog and can be adapted to the team's hab
 - CBZ reader is now chapter-scoped: a chapter's images flow as one continuous strip and scrolling stops at an 本章完 · 下一章 card (only chapter buttons / TOC / slider / bookmarks cross the boundary); a 连读 toggle makes scrolling flow across chapters, and a configurable 0–3-chapter prefetch pre-mounts upcoming chapters for instant switching — the old 连读/整页/适高 mode cycle is gone.
 - CBZ 阅读器改为以章为单位:一章图片是一段连续长卷,滚动止于「本章完 · 下一章」卡片(跨章只能靠章节按钮/目录/滑条/书签);「连读」开关让滑动贯穿章节,预读 0–3 章可配置、提前挂载解码实现切章零白屏;移除原 连读/整页/适高 三档循环。
 
-- Bookmarks in all four readers: a 书签 button in the bar captures the current position (page / chapter+offset / EPUB CFI) with an optional note; the right-side panel lists them — click jumps straight back to that spot, ✎ edits the note in place, ✕ deletes. Bookmarks are per-user and server-side, so they follow you across devices.
-- 四类阅读器新增书签：工具条「书签」按钮把当前位置（页码/章节+章内偏移/EPUB CFI）连同可选备注存下；右侧书签面板点一下即跳回原位，✎ 行内改备注，✕ 删除。书签按用户存在服务端，换设备同账号即见。
+- Bookmarks in all four readers: a 书签 button in the bar captures the current position (page / chapter+offset / EPUB CFI) with an optional note; the 书签 tab of the left navigation drawer lists them — click jumps straight back to that spot, ✎ edits the note in place, ✕ deletes. Bookmarks are per-user and server-side, so they follow you across devices.
+- 四类阅读器新增书签：工具条「书签」按钮把当前位置（页码/章节+章内偏移/EPUB CFI）连同可选备注存下；左侧导航抽屉的「书签」选项卡内点一下即跳回原位，✎ 行内改备注，✕ 删除。书签按用户存在服务端，换设备同账号即见。
 
-- Folder-structured comics gain a 目录 sidebar in the CBZ reader: each archive folder (第N話…) becomes a chapter that jumps to its first page, with 上一章/下一章 buttons, a current-chapter counter, and the active row highlighted and scrolled into view — flat archives show no extra UI.
-- 按目录组织的漫画在 CBZ 阅读器新增「目录」侧栏：压缩包内每个文件夹（第N話…）即一章，点击直达该话首页；工具条配上一章/下一章与当前章计数，目录内高亮当前章并自动居中；平铺无目录的包不显示多余控件。
+- Folder-structured comics gain a 目录 tab in the CBZ reader's navigation drawer: each archive folder (第N話…) becomes a chapter that jumps to its first page, with 上一章/下一章 buttons, a current-chapter counter, and the active row highlighted and scrolled into view — flat archives show no extra UI.
+- 按目录组织的漫画在 CBZ 阅读器导航抽屉内新增「目录」选项卡：压缩包内每个文件夹（第N話…）即一章，点击直达该话首页；工具条配上一章/下一章与当前章计数，目录内高亮当前章并自动居中；平铺无目录的包不显示多余控件。
 
 - Library uploads over 16MB now auto-switch to the resumable chunked protocol (8MB parts): failed parts retry in place up to 3 times and already-sent parts are skipped, so a flaky upload continues instead of starting over; small files keep the original single request.
 - 书库上传超过 16MB 自动切换为可续传分片协议（每片 8MB）：失败的分片原地重试至多 3 次，已传片自动跳过，中断后继续而不是从头再来；小文件仍走原单次上传。
@@ -31,6 +31,9 @@ The format loosely follows Keep a Changelog and can be adapted to the team's hab
 
 ### Changed / 变更
 
+- Reader navigation tightened into one left-side drawer: 目录 and 书签 are now tabs of a single sidebar shared by all four readers, following the reader theme's colors (books without a TOC — flat archives, EPUB, PDF — show the bookmarks panel alone); the separate right-side bookmark panel and the per-reader TOC popovers are gone.
+- 阅读器导航收紧为统一左侧抽屉：目录与书签成为四个阅读器共用的同一侧边栏内的两个选项卡，配色跟随阅读器主题（无目录的书——平铺包、EPUB、PDF——仅显示书签面板）；原右侧书签面板与各阅读器自绘目录浮层移除。
+
 - The web UI was rebuilt on a shadcn/Radix design system: semantic light/dark theme tokens with a system/light/dark switcher (remembered), a persistent app shell (desktop sidebar, tablet icon rail, mobile bottom tabs), a shelf driven by URL-state search/sort/group controls with a flat-first grid and menu-based card actions (confirm dialogs replace native popups), and rebuilt login/admin pages. Readers keep their current chrome and every reading interaction this round; their restyle lands next.
 - 网页 UI 以 shadcn/Radix 设计系统重做:语义化明暗主题 token + 系统/浅色/深色切换(记忆);常驻应用壳(桌面侧栏、平板图标栏、手机底部标签);书架改为 URL 状态驱动的搜索/排序/分组工具条,默认平铺网格,卡片操作收进菜单(删除改为对话框确认);登录页与 admin 两页同步重做。阅读器保持现状,改版随下一期到达。
 

frontend/src/components/Bookmarks.tsx

@@ -1,19 +1,22 @@
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
-import { useState, type ReactNode } from "react";
+import { useState } from "react";
 import { api } from "../api/client";
 import type { Book } from "../api/types";
 import { toast } from "./Toaster";
 
 type Locator = Record<string, unknown>;
 
-export function useBookmarks(opts: {
+/** 书签面板内容(供 ReaderNav 的「书签」选项卡承载);跳转后由调用方负责关抽屉. */
+export function BookmarksTab({
+  book,
+  capture,
+  seek,
+}: {
   book: Book;
   capture: () => { locator: Locator; percent: number };
   seek: (locator: Locator) => void;
-}): { btn: ReactNode; panel: ReactNode } {
-  const { book, capture, seek } = opts;
+}) {
   const qc = useQueryClient();
-  const [open, setOpen] = useState(false);
   const [note, setNote] = useState("");
   const [editId, setEditId] = useState<number | null>(null);
   const [editVal, setEditVal] = useState("");
@@ -48,25 +51,8 @@ export function useBookmarks(opts: {
     onError: fail,
   });
 
-  const btn = (
-    <button
-      className="rd-btn"
-      aria-expanded={open}
-      aria-controls="bm-panel"
-      onClick={() => setOpen((v) => !v)}
-    >
-      书签{items.length ? ` ${items.length}` : ""}
-    </button>
-  );
-
-  const panel = open ? (
+  return (
     <>
-      <div className="fixed inset-0 z-30" aria-hidden="true" onClick={() => setOpen(false)} />
-      <nav
-        id="bm-panel"
-        aria-label="书签"
-        className="rd-divider absolute inset-y-0 right-0 z-40 flex w-72 flex-col border-l bg-[var(--rd-bg)] p-2 shadow-2xl"
-      >
       <div className="mb-2 flex items-center gap-1.5">
         <input
           className="min-w-0 flex-1 rounded-md border border-stone-700 bg-stone-900 px-2 py-1 text-sm text-stone-100 placeholder:text-stone-500"
@@ -82,7 +68,7 @@ export function useBookmarks(opts: {
           加
         </button>
       </div>
-        <ul className="min-h-0 flex-1 space-y-0.5 overflow-y-auto">
+      <ul className="space-y-0.5">
         {q.isPending && <li className="p-2 text-xs text-stone-500">加载中…</li>}
         {!q.isPending && items.length === 0 && (
           <li className="p-2 text-xs text-stone-500">还没有书签,读到想记的位置点「加」</li>
@@ -116,10 +102,7 @@ export function useBookmarks(opts: {
                 <button
                   className="rd-row min-w-0 flex-1 truncate text-left"
                   title={b.note || undefined}
-                    onClick={() => {
-                      seek(b.locator);
-                      setOpen(false);
-                    }}
+                  onClick={() => seek(b.locator)}
                 >
                   <span className="tabular-nums opacity-70">{Math.round(b.percent * 100)}%</span>{" "}
                   {b.note || <span className="opacity-50">{b.created_at.slice(0, 10)}</span>}
@@ -146,9 +129,6 @@ export function useBookmarks(opts: {
           </li>
         ))}
       </ul>
-      </nav>
     </>
-  ) : null;
-
-  return { btn, panel };
+  );
 }

frontend/src/components/reader-nav.tsx

@@ -0,0 +1,63 @@
+import type { ReactNode } from "react";
+
+export type NavTab = "toc" | "bm";
+
+/** 阅读器左侧导航抽屉:目录/书签选项卡;不传 toc 则退化为纯书签面板. */
+export function ReaderNav({
+  tab,
+  onTab,
+  onClose,
+  toc,
+  bookmarks,
+}: {
+  tab: NavTab;
+  onTab?: (t: NavTab) => void;
+  onClose: () => void;
+  toc?: ReactNode;
+  bookmarks: ReactNode;
+}) {
+  return (
+    <>
+      <div className="fixed inset-0 z-30" aria-hidden="true" onClick={onClose} />
+      <nav
+        id="reader-nav"
+        aria-label="导航"
+        className="rd-divider absolute inset-y-0 left-0 z-40 flex w-72 flex-col border-r bg-[var(--rd-bg,#171512)] shadow-2xl"
+        style={{ color: "var(--rd-fg,#c6c0b6)" }}
+      >
+        <div
+          role={toc != null ? "tablist" : undefined}
+          aria-label="导航选项卡"
+          className="rd-divider flex shrink-0 items-center gap-1 border-b p-2"
+        >
+          {toc != null ? (
+            <>
+              <button
+                role="tab"
+                aria-selected={tab === "toc"}
+                className={"rd-btn" + (tab === "toc" ? " rd-btn-on" : "")}
+                onClick={() => onTab?.("toc")}
+              >
+                目录
+              </button>
+              <button
+                role="tab"
+                aria-selected={tab === "bm"}
+                className={"rd-btn" + (tab === "bm" ? " rd-btn-on" : "")}
+                onClick={() => onTab?.("bm")}
+              >
+                书签
+              </button>
+            </>
+          ) : (
+            <span className="rd-btn rd-btn-on">书签</span>
+          )}
+          <button className="rd-btn ml-auto" aria-label="关闭导航" onClick={onClose}>
+            ✕
+          </button>
+        </div>
+        <div className="min-h-0 flex-1 overflow-y-auto p-2">{tab === "toc" ? toc : bookmarks}</div>
+      </nav>
+    </>
+  );
+}

frontend/src/readers/CbzReader.tsx

@@ -2,7 +2,8 @@ import { useQuery } from "@tanstack/react-query";
 import { useEffect, useMemo, useRef, useState, type MouseEvent } from "react";
 import { api, formatPageUrl } from "../api/client";
 import { btn } from "../components/ui";
-import { useBookmarks } from "../components/Bookmarks";
+import { BookmarksTab } from "../components/Bookmarks";
+import { ReaderNav, type NavTab } from "../components/reader-nav";
 import { fetchObjectUrl } from "../lib/authImage";
 import { useProgressSaver, type ReaderProps } from "../lib/useProgress";
 import { PageHeights, chapterIndexAt, chapterWin } from "../lib/virt";
@@ -79,10 +80,9 @@ export default function CbzReader({ book, initialLocator, initialPercent, chrome
   });
   const count = countQ.data?.count ?? 0;
   const chapters = countQ.data?.chapters ?? null; // 包内目录结构(第N話/上中下卷);null/单组=扁平整本一章
-  const [toc, setToc] = useState(false);
+  const [nav, setNav] = useState<null | NavTab>(null);
   const activeRow = useRef<HTMLButtonElement>(null);
   const saver = useProgressSaver(book.id, { locator: initialLocator, percent: initialPercent });
-  const bm = useBookmarks({ book, capture: saver.capture, seek: (l) => goPage(Number(l.page) || 0) });
   const boxRef = useRef<HTMLDivElement>(null);
   const [width, setWidth] = useState(480);
   const [vh, setVh] = useState(600);
@@ -190,8 +190,8 @@ export default function CbzReader({ book, initialLocator, initialPercent, chrome
   const cur = locked ? Math.min(curRaw, w.end - 1) : curRaw; // 锁章:视口落在章末卡片上时读数不越章(HUD/滑条/进度)
 
   useEffect(() => {
-    if (toc) activeRow.current?.scrollIntoView({ block: "center" });
-  }, [toc]);
+    if (nav === "toc") activeRow.current?.scrollIntoView({ block: "center" });
+  }, [nav]);
 
   function scrollToPage(i: number, smooth: boolean) {
     const el = boxRef.current;
@@ -358,10 +358,22 @@ export default function CbzReader({ book, initialLocator, initialPercent, chrome
                 预读 {prefetch} 章
               </button>
             )}
-            {bm.btn}
+            <button
+              className="rd-btn"
+              aria-expanded={nav === "bm"}
+              aria-controls="reader-nav"
+              onClick={() => setNav(nav === "bm" ? null : "bm")}
+            >
+              书签
+            </button>
             {chapters && (
               <>
-                <button className="rd-btn" aria-expanded={toc} aria-controls="cbz-toc" onClick={() => setToc((v) => !v)}>
+                <button
+                  className="rd-btn"
+                  aria-expanded={nav === "toc"}
+                  aria-controls="reader-nav"
+                  onClick={() => setNav(nav === "toc" ? null : "toc")}
+                >
                   目录
                 </button>
                 <span className="text-xs tabular-nums opacity-60">
@@ -389,14 +401,23 @@ export default function CbzReader({ book, initialLocator, initialPercent, chrome
           <span className="opacity-60">{Math.round(((cur + 1) / Math.max(1, count)) * 100)}%</span>
         </div>
       )}
-      {toc && chapters && (
-        <>
-          <div className="fixed inset-0 z-10" aria-hidden="true" onClick={() => setToc(false)} />
-          <nav
-            id="cbz-toc"
-            aria-label="章节目录"
-            className="rd-divider absolute inset-y-0 left-0 z-20 w-64 overflow-y-auto border-r bg-[var(--rd-bg)] p-2 shadow-2xl"
-          >
+      {nav && (
+        <ReaderNav
+          tab={chapters ? nav : "bm"}
+          onTab={setNav}
+          onClose={() => setNav(null)}
+          bookmarks={
+            <BookmarksTab
+              book={book}
+              capture={saver.capture}
+              seek={(l) => {
+                goPage(Number(l.page) || 0);
+                setNav(null);
+              }}
+            />
+          }
+          toc={
+            chapters && (
               <ul className="space-y-0.5">
                 {chapters.map((c, i) => (
                   <li key={i}>
@@ -405,7 +426,7 @@ export default function CbzReader({ book, initialLocator, initialPercent, chrome
                       className={"rd-row" + (i === ci ? " rd-btn-on" : "")}
                       onClick={() => {
                         goPage(c.start);
-                      setToc(false);
+                        setNav(null);
                       }}
                     >
                       {i + 1}. {c.title}
@@ -413,10 +434,10 @@ export default function CbzReader({ book, initialLocator, initialPercent, chrome
                   </li>
                 ))}
               </ul>
-          </nav>
-        </>
+            )
+          }
+        />
       )}
-      {bm.panel}
     </div>
   );
 }

frontend/src/readers/EpubReader.tsx

@@ -1,6 +1,7 @@
 import { useEffect, useRef, useState } from "react";
 import { apiRaw } from "../api/client";
-import { useBookmarks } from "../components/Bookmarks";
+import { BookmarksTab } from "../components/Bookmarks";
+import { ReaderNav } from "../components/reader-nav";
 import { btn } from "../components/ui";
 import { toast } from "../components/Toaster";
 import { useProgressSaver, type ReaderProps } from "../lib/useProgress";
@@ -32,15 +33,7 @@ export default function EpubReader({ book, initialLocator, initialPercent }: Rea
   const hostRef = useRef<HTMLDivElement>(null);
   const rendRef = useRef<EpubRendition | null>(null);
   const saver = useProgressSaver(book.id, { locator: initialLocator, percent: initialPercent });
-  const bm = useBookmarks({
-    book,
-    capture: saver.capture,
-    seek: (l) => {
-      const cfi = String(l.cfi ?? "");
-      if (!cfi) return;
-      Promise.resolve(rendRef.current?.display(cfi)).catch(() => toast("err", "书签定位失败"));
-    },
-  });
+  const [nav, setNav] = useState(false);
   const [err, setErr] = useState("");
   const [nonce, setNonce] = useState(0);
   const [ready, setReady] = useState(false);
@@ -113,9 +106,28 @@ export default function EpubReader({ book, initialLocator, initialPercent }: Rea
         <button className={btn} onClick={() => rendRef.current?.next()}>
           下一页
         </button>
-        {bm.btn}
+        <button className="rd-btn" aria-expanded={nav} aria-controls="reader-nav" onClick={() => setNav((v) => !v)}>
+          书签
+        </button>
       </div>
-      {bm.panel}
+      {nav && (
+        <ReaderNav
+          tab="bm"
+          onClose={() => setNav(false)}
+          bookmarks={
+            <BookmarksTab
+              book={book}
+              capture={saver.capture}
+              seek={(l) => {
+                const cfi = String(l.cfi ?? "");
+                setNav(false);
+                if (!cfi) return;
+                Promise.resolve(rendRef.current?.display(cfi)).catch(() => toast("err", "书签定位失败"));
+              }}
+            />
+          }
+        />
+      )}
     </div>
   );
 }

frontend/src/readers/PdfReader.tsx

@@ -1,7 +1,8 @@
 import { useEffect, useRef, useState, type KeyboardEvent } from "react";
 import * as pdfjs from "pdfjs-dist";
 import { apiRaw } from "../api/client";
-import { useBookmarks } from "../components/Bookmarks";
+import { BookmarksTab } from "../components/Bookmarks";
+import { ReaderNav } from "../components/reader-nav";
 import { btn } from "../components/ui";
 import { useProgressSaver, type ReaderProps } from "../lib/useProgress";
 
@@ -21,14 +22,7 @@ export default function PdfReader({ book, initialLocator, initialPercent }: Read
   const taskRef = useRef<RenderTask | null>(null);
   const restored = useRef(false);
   const saver = useProgressSaver(book.id, { locator: initialLocator, percent: initialPercent });
-  const bm = useBookmarks({
-    book,
-    capture: saver.capture,
-    seek: (l) => {
-      const p = Number(l.page);
-      if (Number.isInteger(p) && p >= 0 && p < num) setPage(p);
-    },
-  });
+  const [nav, setNav] = useState(false);
   const [num, setNum] = useState(0);
   const [page, setPage] = useState(0); // 0 基
   const [err, setErr] = useState("");
@@ -160,9 +154,27 @@ export default function PdfReader({ book, initialLocator, initialPercent }: Read
         <button className={btn} disabled={page >= num - 1} onClick={() => setPage(num - 1)} aria-label="最后一页">
           末页
         </button>
-        {bm.btn}
+        <button className="rd-btn" aria-expanded={nav} aria-controls="reader-nav" onClick={() => setNav((v) => !v)}>
+          书签
+        </button>
       </div>
-      {bm.panel}
+      {nav && (
+        <ReaderNav
+          tab="bm"
+          onClose={() => setNav(false)}
+          bookmarks={
+            <BookmarksTab
+              book={book}
+              capture={saver.capture}
+              seek={(l) => {
+                const p = Number(l.page);
+                setNav(false);
+                if (Number.isInteger(p) && p >= 0 && p < num) setPage(p);
+              }}
+            />
+          }
+        />
+      )}
     </div>
   );
 }

frontend/src/readers/TextReader.tsx

@@ -2,7 +2,8 @@ import DOMPurify from "dompurify";
 import { marked } from "marked";
 import { useEffect, useMemo, useRef, useState, type MouseEvent, type ReactNode } from "react";
 import { apiRaw } from "../api/client";
-import { useBookmarks } from "../components/Bookmarks";
+import { BookmarksTab } from "../components/Bookmarks";
+import { ReaderNav, type NavTab } from "../components/reader-nav";
 import { btn } from "../components/ui";
 import { chapterText, seekChapter, splitChapters } from "../lib/chapters";
 import { decodeText } from "../lib/encoding";
@@ -134,7 +135,7 @@ export default function TextReader(props: ReaderProps) {
 function MdView({ book, initialLocator, initialPercent, chrome }: ReaderProps) {
   const boxRef = useRef<HTMLDivElement>(null);
   const saver = useProgressSaver(book.id, { locator: initialLocator, percent: initialPercent });
-  const bm = useBookmarks({ book, capture: saver.capture, seek: (l) => seek(Number(l.scrollFraction) || 0) });
+  const [nav, setNav] = useState(false);
   const restored = useRef(false);
   const pr = useReaderPrefs();
   const [frac, setFrac] = useState(0);
@@ -183,8 +184,34 @@ function MdView({ book, initialLocator, initialPercent, chrome }: ReaderProps) {
           dangerouslySetInnerHTML={{ __html: html ?? "" }}
         />
       </div>
-      {chrome.on && <ReaderSheet pr={pr} frac={frac} onSeek={seek}>{bm.btn}</ReaderSheet>}
-      {bm.panel}
+      {chrome.on && (
+        <ReaderSheet pr={pr} frac={frac} onSeek={seek}>
+          <button
+            className="rd-btn"
+            aria-expanded={nav}
+            aria-controls="reader-nav"
+            onClick={() => setNav((v) => !v)}
+          >
+            书签
+          </button>
+        </ReaderSheet>
+      )}
+      {nav && (
+        <ReaderNav
+          tab="bm"
+          onClose={() => setNav(false)}
+          bookmarks={
+            <BookmarksTab
+              book={book}
+              capture={saver.capture}
+              seek={(l) => {
+                seek(Number(l.scrollFraction) || 0);
+                setNav(false);
+              }}
+            />
+          }
+        />
+      )}
     </div>
   );
 }
@@ -199,14 +226,9 @@ function TxtView({ book, initialLocator, initialPercent, chrome }: ReaderProps)
   const activeRow = useRef<HTMLButtonElement>(null);
   const [ci, setCi] = useState(0);
   const [frac, setFrac] = useState(0);
-  const [toc, setToc] = useState(false);
+  const [nav, setNav] = useState<null | NavTab>(null);
   const pr = useReaderPrefs();
   const { text, err, retry } = useFileText(book.file_url ?? "");
-  const bm = useBookmarks({
-    book,
-    capture: saver.capture,
-    seek: (l) => goChapter(Number(l.ch) || 0, Number(l.scrollFraction) || 0),
-  });
 
   const chapters = useMemo(() => (text == null ? null : splitChapters(text)), [text]);
 
@@ -238,8 +260,8 @@ function TxtView({ book, initialLocator, initialPercent, chrome }: ReaderProps)
   }, [ci, chapters]);
 
   useEffect(() => {
-    if (toc) activeRow.current?.scrollIntoView({ block: "center" });
-  }, [toc]);
+    if (nav === "toc") activeRow.current?.scrollIntoView({ block: "center" });
+  }, [nav]);
 
   function goChapter(i: number, intra = 0) {
     if (!chapters) return;
@@ -287,14 +309,21 @@ function TxtView({ book, initialLocator, initialPercent, chrome }: ReaderProps)
       </div>
       {chrome.on && (
         <ReaderSheet pr={pr} frac={total} onSeek={seek}>
-          {bm.btn}
+          <button
+            className="rd-btn"
+            aria-expanded={nav === "bm"}
+            aria-controls="reader-nav"
+            onClick={() => setNav(nav === "bm" ? null : "bm")}
+          >
+            书签
+          </button>
           {chapters.length > 1 && (
             <>
               <button
                 className="rd-btn"
-                aria-expanded={toc}
-                aria-controls="toc-panel"
-                onClick={() => setToc((v) => !v)}
+                aria-expanded={nav === "toc"}
+                aria-controls="reader-nav"
+                onClick={() => setNav(nav === "toc" ? null : "toc")}
               >
                 目录
               </button>
@@ -311,15 +340,24 @@ function TxtView({ book, initialLocator, initialPercent, chrome }: ReaderProps)
           )}
         </ReaderSheet>
       )}
-      {/* ponytail: 目录一次渲染全部章节,数千章级书若卡顿再上虚拟列表 */}
-      {toc && chapters.length > 1 && (
-        <>
-          <div className="fixed inset-0 z-10" aria-hidden="true" onClick={() => setToc(false)} />
-          <nav
-            id="toc-panel"
-            aria-label="章节目录"
-            className="rd-divider absolute inset-y-0 left-0 z-20 w-64 overflow-y-auto border-r bg-[var(--rd-bg)] p-2 shadow-2xl"
-          >
+      {nav && (
+        <ReaderNav
+          tab={chapters.length > 1 ? nav : "bm"}
+          onTab={setNav}
+          onClose={() => setNav(null)}
+          bookmarks={
+            <BookmarksTab
+              book={book}
+              capture={saver.capture}
+              seek={(l) => {
+                goChapter(Number(l.ch) || 0, Number(l.scrollFraction) || 0);
+                setNav(null);
+              }}
+            />
+          }
+          toc={
+            /* ponytail: 目录一次渲染全部章节,数千章级书若卡顿再上虚拟列表 */
+            chapters.length > 1 && (
               <ul className="space-y-0.5">
                 {chapters.map((c, i) => (
                   <li key={i}>
@@ -328,7 +366,7 @@ function TxtView({ book, initialLocator, initialPercent, chrome }: ReaderProps)
                       className={"rd-row" + (i === ci ? " rd-btn-on" : "")}
                       onClick={() => {
                         goChapter(i);
-                      setToc(false);
+                        setNav(null);
                       }}
                     >
                       {i + 1}. {c.title}
@@ -336,10 +374,10 @@ function TxtView({ book, initialLocator, initialPercent, chrome }: ReaderProps)
                   </li>
                 ))}
               </ul>
-          </nav>
-        </>
+            )
+          }
+        />
       )}
-      {bm.panel}
     </div>
   );
 }