feat(books): rename book titles; click-to-select recents with Rename/Delete actions

src/main/index.ts

@@ -17,7 +17,7 @@ import {
   saveMeta,
   Recent,
 } from "./project.js";
-import { listRecents, addRecent, removeRecent, migrateLegacyRecents } from "./recents.js";
+import { listRecents, addRecent, removeRecent, renameRecent, migrateLegacyRecents } from "./recents.js";
 import { buildMenu } from "./menu.js";
 import {
   createChapter,
@@ -338,6 +338,29 @@ handleIpc("folio:pickBackupFolder", async () => {
 
 handleIpc("folio:getRecents", (): Recent[] => listRecents());
 
+// Rename a book's display title (folio.json + matching recents entry). The
+// folder on disk keeps its name: renaming the directory would invalidate
+// every other recents/menu path that points at it, so the title is the only
+// stable rename surface.
+handleIpc("folio:renameBook", (_e, p: string, rawTitle: string) => {
+  const title = typeof rawTitle === "string" ? rawTitle.trim() : "";
+  if (!title) return { error: "Book name cannot be empty." };
+  if (!hasBook(p)) return { error: `Not a Folio book: ${p}` };
+  try {
+    const meta = loadBook(p);
+    meta.title = title;
+    saveMeta(p, meta);
+  } catch (err) {
+    return { error: err instanceof Error ? err.message : String(err) };
+  }
+  renameRecent(p, title);
+  if (bookPath === p) {
+    mainWindow?.setTitle(`${title} — Folio`);
+    refreshMenu();
+  }
+  return { ok: true, title };
+});
+
 handleIpc("folio:closeBook", () => {
   bookPath = null;
   mainWindow?.setTitle("Folio");

src/main/preload.ts

@@ -4,6 +4,7 @@ contextBridge.exposeInMainWorld("folio", {
   // book / project
   newBookNamed: (name: string) => ipcRenderer.invoke("folio:newBookNamed", name),
   deleteBook: (p: string) => ipcRenderer.invoke("folio:deleteBook", p),
+  renameBook: (p: string, title: string) => ipcRenderer.invoke("folio:renameBook", p, title),
   restoreBook: (p: string) => ipcRenderer.invoke("folio:restoreBook", p),
   openBook: () => ipcRenderer.invoke("folio:openBook"),
   openBookPath: (p: string) => ipcRenderer.invoke("folio:openPath", p),

src/main/project.ts

@@ -132,3 +132,11 @@ export function removeRecent(filePath: string, recentPath: string): Recent[] {
   writeJsonFile(filePath, recents);
   return recents;
 }
+
+export function renameRecent(filePath: string, recentPath: string, title: string): Recent[] {
+  const recents = listRecents(filePath).map((r) =>
+    r.path === recentPath ? { ...r, title } : r
+  );
+  writeJsonFile(filePath, recents);
+  return recents;
+}

src/main/recents.ts

@@ -5,6 +5,7 @@ import { APP_ID, hasBook } from "./project.js";
 import {
   addRecent as _addRecent,
   removeRecent as _removeRecent,
+  renameRecent as _renameRecent,
 } from "./project.js";
 import { readJsonArray, writeJsonFile } from "./json-store.js";
 import type { Recent } from "./project.js";
@@ -80,3 +81,7 @@ export function addRecent(recent: Recent): Recent[] {
 export function removeRecent(recentPath: string): Recent[] {
   return _removeRecent(recentsFilePath(), recentPath);
 }
+
+export function renameRecent(recentPath: string, title: string): Recent[] {
+  return _renameRecent(recentsFilePath(), recentPath, title);
+}

src/renderer/book/index.ts

@@ -150,7 +150,7 @@ export function initBook(api: FolioAPI) {
   api.onOpenRecent((p) => void welcome.openPath(p));
   api.onOpenMarkdownRequested(() => void welcome.openMarkdown());
   api.onCheckUpdateRequested(() => void checkForUpdates());
-  $("welcomeUpdate")?.addEventListener("click", () => void checkForUpdates());
+  hooks.checkForUpdates = () => void checkForUpdates();
   api.onRevealRequested(async (p) => {
     const ok = await api.revealInFolder(p);
     showToast(

src/renderer/book/types.ts

@@ -38,6 +38,7 @@ export type FolioAPI = {
   openBookPath: (p: string) => Promise<any>;
   revealInFolder: (p: string) => Promise<boolean>;
   getRecents: () => Promise<any[]>;
+  renameBook: (p: string, title: string) => Promise<any>;
   closeBook: () => Promise<boolean>;
   getSpellcheck: () => Promise<boolean>;
   setSpellcheck: (on: boolean) => Promise<any>;
@@ -138,6 +139,8 @@ export interface BookHooks {
   isTypewriterEnabled(): boolean;
   // settings feature
   openSettings(): void;
+  // update flow (orchestrator)
+  checkForUpdates(): void;
   // session coordinators (orchestrator)
   refreshMeta(): Promise<void>;
   showPlaceholder(): void;

src/renderer/book/welcome.ts

@@ -195,20 +195,50 @@ export function createWelcomeFeature(ctx: BookCtx): WelcomeFeature {
       for (const r of recents as (Recent & { missing?: boolean })[]) {
         const li = document.createElement("li");
         li.className = "recent-item";
+        li.tabIndex = 0;
         const label = document.createElement("span");
         label.className = "recent-title";
         label.textContent = (r.title || r.path) + (r.missing ? " (missing)" : "");
         label.title = r.path;
-        label.addEventListener("mousedown", (e) => {
-          e.preventDefault();
-          void openPath(r.path);
+        // Single click selects the row (reveals Rename/Delete actions);
+        // double-click or Enter opens the book. Replaces the old always-on
+        // "×" button, which deleted on a mis-click.
+        label.addEventListener("click", () => selectRecent(li));
+        li.addEventListener("dblclick", () => void openPath(r.path));
+        li.addEventListener("keydown", (e) => {
+          if (e.key === "Enter") void openPath(r.path);
+          else if (e.key === "Escape" && li.classList.contains("selected")) deselectRecent(li);
         });
+        const actions = document.createElement("span");
+        actions.className = "recent-actions";
+        if (!r.missing) {
+          const ren = document.createElement("button");
+          ren.className = "recent-action icon-button";
+          ren.type = "button";
+          ren.title = "Rename book";
+          ren.setAttribute("aria-label", "Rename book");
+          ren.textContent = "✎";
+          ren.addEventListener("click", async (e) => {
+            e.stopPropagation();
+            const name = await promptInput("Rename book", r.title || "");
+            if (name === null) return;
+            const trimmed = name.trim();
+            if (!trimmed || trimmed === r.title) return;
+            const res = await api.renameBook(r.path, trimmed);
+            if (res && "error" in res) {
+              await alertMessage("Could not rename", (res as { error: string }).error);
+              return;
+            }
+            await renderRecents();
+          });
+          actions.appendChild(ren);
+        }
         const del = document.createElement("button");
-        del.className = "recent-delete icon-button";
+        del.className = "recent-action icon-button recent-delete";
         del.type = "button";
         del.title = "Delete book";
         del.setAttribute("aria-label", "Delete book");
-        del.textContent = "×";
+        del.textContent = "Delete";
         del.addEventListener("click", async (e) => {
           e.stopPropagation();
           const res = await api.deleteBook(r.path);
@@ -230,8 +260,9 @@ export function createWelcomeFeature(ctx: BookCtx): WelcomeFeature {
             await renderRecents();
           });
         });
+        actions.appendChild(del);
         li.appendChild(label);
-        li.appendChild(del);
+        li.appendChild(actions);
         recentList.appendChild(li);
       }
     } catch {
@@ -239,6 +270,18 @@ export function createWelcomeFeature(ctx: BookCtx): WelcomeFeature {
     }
   }
 
+  // At most one recents row is selected at a time; selection reveals the
+  // row's action buttons (see .recent-actions CSS).
+  function deselectRecent(li: HTMLElement) {
+    li.classList.remove("selected");
+  }
+  function selectRecent(li: HTMLElement) {
+    recentList
+      .querySelectorAll("li.recent-item.selected")
+      .forEach((el) => el !== li && el.classList.remove("selected"));
+    li.classList.add("selected");
+  }
+
   // ---- wiring (bind once at construction) ----
   $("welcomeNewBook").addEventListener("click", () => void startNewBook());
   $("welcomeOpenBook").addEventListener("click", () => void startOpenBook());