traffic-laser/src/hook/useViewStack.ts

import {
  nextTick,
  onActivated,
  onDeactivated,
  onMounted,
  onUnmounted
} from 'vue'

type HookArgs = (...args: any) => () => any

export const useViewStack = (hook: HookArgs) => {
  let destroy: ReturnType<HookArgs>
  const deHandler = () => {
    if (destroy) {
      destroy()
      destroy = null
    }
  }
  const handler = () => {
    nextTick(() => {
      if (!destroy) {
        destroy = hook()
      }
    })
  }
  onActivated(handler)
  onMounted(handler)
  onDeactivated(deHandler)
  onUnmounted(deHandler)
}