DAO_DE_JING/.vitepress/theme/tablet-landscape.ts

/** Android 平板 PWA 安装后默认锁定横屏 */
export function initTabletLandscape() {
  if (typeof window === 'undefined') return

  function tryLockLandscape() {
    const isStandalone =
      window.matchMedia('(display-mode: standalone)').matches ||
      (window.navigator as Navigator & { standalone?: boolean }).standalone

    if (!isStandalone || !/Android/i.test(navigator.userAgent)) return

    const shortestSide = Math.min(window.screen.width, window.screen.height)
    if (shortestSide < 600) return

    const lock = screen.orientation?.lock?.bind(screen.orientation)
    if (!lock) return

    lock('landscape-primary').catch(() => {
      lock('landscape').catch(() => {})
    })
  }

  tryLockLandscape()
  window.addEventListener('orientationchange', tryLockLandscape)
}