feat: add Cmd+Shift+T shortcut, menu item, and full wiring

Add "Reopen Closed Tab" to File menu with CmdOrCtrl+Shift+T accelerator.
Wire onReopenClosedTab through useAppKeyboard, useMenuEvents,
useAppCommands, and App.tsx.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src-tauri/src/menu.rs

@@ -13,6 +13,7 @@ const FILE_DAILY_NOTE: &str = "file-daily-note";
 const FILE_QUICK_OPEN: &str = "file-quick-open";
 const FILE_SAVE: &str = "file-save";
 const FILE_CLOSE_TAB: &str = "file-close-tab";
+const FILE_REOPEN_CLOSED_TAB: &str = "file-reopen-closed-tab";
 
 const EDIT_FIND_IN_VAULT: &str = "edit-find-in-vault";
 const EDIT_TOGGLE_RAW_EDITOR: &str = "edit-toggle-raw-editor";
@@ -62,6 +63,7 @@ const CUSTOM_IDS: &[&str] = &[
     FILE_QUICK_OPEN,
     FILE_SAVE,
     FILE_CLOSE_TAB,
+    FILE_REOPEN_CLOSED_TAB,
     EDIT_FIND_IN_VAULT,
     EDIT_TOGGLE_RAW_EDITOR,
     EDIT_TOGGLE_DIFF,
@@ -167,6 +169,10 @@ fn build_file_menu(app: &App) -> MenuResult {
         .id(FILE_CLOSE_TAB)
         .accelerator("CmdOrCtrl+W")
         .build(app)?;
+    let reopen_closed_tab = MenuItemBuilder::new("Reopen Closed Tab")
+        .id(FILE_REOPEN_CLOSED_TAB)
+        .accelerator("CmdOrCtrl+Shift+T")
+        .build(app)?;
 
     Ok(SubmenuBuilder::new(app, "File")
         .item(&new_note)
@@ -176,6 +182,7 @@ fn build_file_menu(app: &App) -> MenuResult {
         .separator()
         .item(&save)
         .item(&close_tab)
+        .item(&reopen_closed_tab)
         .build()?)
 }
 

src/App.tsx

@@ -596,6 +596,7 @@ function App() {
     onInstallMcp: installMcp,
     onEmptyTrash: handleEmptyTrash,
     trashedCount,
+    onReopenClosedTab: notes.handleReopenClosedTab,
     onReindexVault: indexing.triggerFullReindex,
     onReloadVault: vault.reloadVault,
     onRepairVault: handleRepairVault,

src/hooks/useAppCommands.ts

@@ -67,6 +67,7 @@ interface AppCommandsConfig {
   onInstallMcp?: () => void
   onEmptyTrash?: () => void
   trashedCount?: number
+  onReopenClosedTab?: () => void
   onReindexVault?: () => void
   onReloadVault?: () => void
   onRepairVault?: () => void
@@ -116,6 +117,7 @@ export function useAppCommands(config: AppCommandsConfig): CommandAction[] {
     onGoForward: config.onGoForward,
     onToggleAIChat: config.onToggleAIChat,
     onToggleRawEditor: config.onToggleRawEditor,
+    onReopenClosedTab: config.onReopenClosedTab,
     activeTabPathRef: config.activeTabPathRef,
     handleCloseTabRef: config.handleCloseTabRef,
   })
@@ -156,6 +158,7 @@ export function useAppCommands(config: AppCommandsConfig): CommandAction[] {
     onReloadVault: config.onReloadVault,
     onRepairVault: config.onRepairVault,
     onEmptyTrash: config.onEmptyTrash,
+    onReopenClosedTab: config.onReopenClosedTab,
     activeTabPathRef: config.activeTabPathRef,
     handleCloseTabRef: config.handleCloseTabRef,
     activeTabPath: config.activeTabPath,

src/hooks/useAppKeyboard.test.ts

@@ -183,6 +183,23 @@ describe('useAppKeyboard', () => {
     expect(actions.onZoomReset).toHaveBeenCalled()
   })
 
+  it('Cmd+Shift+T triggers reopen closed tab', () => {
+    const actions = makeActions()
+    const onReopenClosedTab = vi.fn()
+    renderHook(() => useAppKeyboard({ ...actions, onReopenClosedTab }))
+    fireKey('t', { metaKey: true, shiftKey: true })
+    expect(onReopenClosedTab).toHaveBeenCalled()
+  })
+
+  it('Cmd+Shift+T does not trigger other shortcuts', () => {
+    const actions = makeActions()
+    const onReopenClosedTab = vi.fn()
+    renderHook(() => useAppKeyboard({ ...actions, onReopenClosedTab }))
+    fireKey('t', { metaKey: true, shiftKey: true })
+    expect(actions.onQuickOpen).not.toHaveBeenCalled()
+    expect(actions.onCreateNote).not.toHaveBeenCalled()
+  })
+
   it('Cmd+I triggers toggle AI chat', () => {
     const actions = makeActions()
     const onToggleAIChat = vi.fn()

src/hooks/useAppKeyboard.ts

@@ -19,6 +19,7 @@ interface KeyboardActions {
   onGoForward?: () => void
   onToggleAIChat?: () => void
   onToggleRawEditor?: () => void
+  onReopenClosedTab?: () => void
   activeTabPathRef: React.MutableRefObject<string | null>
   handleCloseTabRef: React.MutableRefObject<(path: string) => void>
 }
@@ -64,7 +65,7 @@ function handleCmdKey(e: KeyboardEvent, keyMap: Record<string, ShortcutHandler>)
 
 export function useAppKeyboard({
   onQuickOpen, onCommandPalette, onSearch, onCreateNote, onOpenDailyNote, onSave, onOpenSettings, onTrashNote, onArchiveNote,
-  onSetViewMode, onZoomIn, onZoomOut, onZoomReset, onGoBack, onGoForward, onToggleAIChat, onToggleRawEditor, activeTabPathRef, handleCloseTabRef,
+  onSetViewMode, onZoomIn, onZoomOut, onZoomReset, onGoBack, onGoForward, onToggleAIChat, onToggleRawEditor, onReopenClosedTab, activeTabPathRef, handleCloseTabRef,
 }: KeyboardActions) {
   useEffect(() => {
     const withActiveTab = (fn: (path: string) => void): ShortcutHandler => () => {
@@ -100,11 +101,17 @@ export function useAppKeyboard({
         onSearch()
         return
       }
+      // Cmd+Shift+T: reopen last closed tab
+      if ((e.metaKey || e.ctrlKey) && e.shiftKey && (e.key === 't' || e.key === 'T')) {
+        e.preventDefault()
+        onReopenClosedTab?.()
+        return
+      }
       if (!handleViewModeKey(e, onSetViewMode)) {
         handleCmdKey(e, cmdKeyMap)
       }
     }
     window.addEventListener('keydown', handleKeyDown)
     return () => window.removeEventListener('keydown', handleKeyDown)
-  }, [onQuickOpen, onCommandPalette, onSearch, onCreateNote, onOpenDailyNote, onSave, onOpenSettings, onTrashNote, onArchiveNote, activeTabPathRef, handleCloseTabRef, onSetViewMode, onZoomIn, onZoomOut, onZoomReset, onGoBack, onGoForward, onToggleAIChat, onToggleRawEditor])
+  }, [onQuickOpen, onCommandPalette, onSearch, onCreateNote, onOpenDailyNote, onSave, onOpenSettings, onTrashNote, onArchiveNote, activeTabPathRef, handleCloseTabRef, onSetViewMode, onZoomIn, onZoomOut, onZoomReset, onGoBack, onGoForward, onToggleAIChat, onToggleRawEditor, onReopenClosedTab])
 }

src/hooks/useMenuEvents.test.ts

@@ -36,6 +36,7 @@ function makeHandlers(): MenuEventHandlers {
     onInstallMcp: vi.fn(),
     onReindexVault: vi.fn(),
     onReloadVault: vi.fn(),
+    onReopenClosedTab: vi.fn(),
     activeTabPathRef: { current: '/vault/test.md' } as React.MutableRefObject<string | null>,
     handleCloseTabRef: { current: vi.fn() } as React.MutableRefObject<(path: string) => void>,
     activeTabPath: '/vault/test.md',
@@ -313,6 +314,13 @@ describe('dispatchMenuEvent', () => {
     expect(h.onReloadVault).toHaveBeenCalled()
   })
 
+  // File menu: reopen closed tab
+  it('file-reopen-closed-tab triggers reopen closed tab', () => {
+    const h = makeHandlers()
+    dispatchMenuEvent('file-reopen-closed-tab', h)
+    expect(h.onReopenClosedTab).toHaveBeenCalled()
+  })
+
   // Edge cases
   it('unknown event ID does nothing', () => {
     const h = makeHandlers()

src/hooks/useMenuEvents.ts

@@ -35,6 +35,7 @@ export interface MenuEventHandlers {
   onResolveConflicts?: () => void
   onViewChanges?: () => void
   onInstallMcp?: () => void
+  onReopenClosedTab?: () => void
   onReindexVault?: () => void
   onReloadVault?: () => void
   onRepairVault?: () => void
@@ -83,6 +84,7 @@ type OptionalHandler =
   | 'onCreateTheme' | 'onRestoreDefaultThemes'
   | 'onCommitPush' | 'onResolveConflicts' | 'onViewChanges' | 'onInstallMcp' | 'onReindexVault' | 'onReloadVault' | 'onRepairVault'
   | 'onEmptyTrash'
+  | 'onReopenClosedTab'
 
 const OPTIONAL_EVENT_MAP: Record<string, OptionalHandler> = {
   'view-go-back': 'onGoBack',
@@ -105,6 +107,7 @@ const OPTIONAL_EVENT_MAP: Record<string, OptionalHandler> = {
   'vault-reload': 'onReloadVault',
   'vault-repair': 'onRepairVault',
   'note-empty-trash': 'onEmptyTrash',
+  'file-reopen-closed-tab': 'onReopenClosedTab',
 }
 
 function dispatchActiveTabEvent(id: string, h: MenuEventHandlers): boolean {