element-plus/packages/components/tooltip/src/utils.ts

import { unref } from 'vue'
import { isArray } from '@element-plus/utils'
import type { Ref } from 'vue'
import type { Trigger } from './tooltip'

export const isTriggerType = (trigger: Trigger | Trigger[], type: Trigger) => {
  if (isArray(trigger)) {
    return trigger.includes(type)
  }
  return trigger === type
}

export const whenTrigger = (
  trigger: Ref<Trigger | Trigger[]>,
  type: Trigger,
  handler: (e: Event) => void
) => {
  return (e: Event) => {
    isTriggerType(unref(trigger), type) && handler(e)
  }
}