Method exitAlternateScreen

src/ink/ink.tsx:392–419

* Resume Ink after an external TUI handoff with a full repaint. * In non-fullscreen mode this exits the alt screen back to main; * in fullscreen mode we re-enter alt and clear + repaint. * * The re-enter matters: terminal editors (vim, nano, less) write * smcup/rmcup (?1049h/?1049l),

()

   * returns, fullscreen scroll is dead.
   */
  exitAlternateScreen(): void {
    this.options.stdout.write((this.altScreenActive ? ENTER_ALT_SCREEN : '') +
    // re-enter alt — vim's rmcup dropped us to main
    '\x1b[2J' +
    // clear screen (now alt if fullscreen)
    '\x1b[H' + (
    // cursor home
    this.altScreenMouseTracking ? ENABLE_MOUSE_TRACKING : '') + (
    // re-enable mouse (skip if CLAUDE_CODE_DISABLE_MOUSE)
    this.altScreenActive ? '' : '\x1b[?1049l') +
    // exit alt (non-fullscreen only)
    '\x1b[?25l' // hide cursor (Ink manages)
    );
    this.resumeStdin();
    if (this.altScreenActive) {
      this.resetFramesForAltScreen();
    } else {
      this.repaint();
    }
    this.resume();
    // Re-enable focus reporting and extended key reporting — terminal
    // editors (vim, nano, etc.) write their own modifyOtherKeys level on
    // entry and reset it on exit, leaving us unable to distinguish
    // ctrl+shift+<letter> from ctrl+<letter>. Pop-before-push keeps the
    // Kitty stack balanced (a well-behaved editor restores our entry, so
    // without the pop we'd accumulate depth on each editor round-trip).
    this.options.stdout.write('\x1b[?1004h' + (supportsExtendedKeys() ? DISABLE_KITTY_KEYBOARD + ENABLE_KITTY_KEYBOARD + ENABLE_MODIFY_OTHER_KEYS : ''));
  }
  onRender() {
    if (this.isUnmounted || this.isPaused) {
      return;