Function onChange

packages/vite/src/client/client.ts:504–509

(newVisibility: DocumentVisibilityState)

  function waitForWindowShow(visibilityManager: VisibilityManager) {
    return new Promise<void>((resolve) => {
      const onChange = (newVisibility: DocumentVisibilityState) => {
        if (newVisibility === 'visible') {
          resolve()
          visibilityManager.listeners.delete(onChange)
        }
      }
      visibilityManager.listeners.add(onChange)
    })
  }