监听放大缩小事件 window.devicePixelRatio

let backup
onMounted(() => {
  window.onresize = async () => {
    const devicePixelRatio = window.devicePixelRatio
    /**
    * 若工程是最后一页或是只有第一页就不进行加载
    * 且 第一次加载缩小备份devicePixelRatio是未定义 或者 备份devicePixelRatio大于当前devicePixelRatio值 则刷新
    **/
    if ((ifLast.value === 0) && devicePixelRatio < 1 && ((backup === undefined) || (backup !== undefined && backup > devicePixelRatio))) {
      backup = window.devicePixelRatio
      if (selectedGroupKeys.value[0] === 0) {
        await requestProjectList()
      }
      else {
        await requestProjectListById()
      }
    }
  }
})

onUnmounted(() => {
  // 组件销毁后解绑事件
  window.onresize = null
})

监听窗口高度是否改变事件

const changeJustifyContent = () => {
  const browseContentWidth = parseInt(currentSlide.value.width) * scale.value
  const documentWidth = document.documentElement.clientWidth
  if (browseContentWidth >= documentWidth) {
    justifyContent.value = 'flex-start'
  }
  else {
    justifyContent.value = 'center'
  }
}

onMounted(() => {
  window.onresize = () => {
    console.log('change')
    changeJustifyContent()
  }
})

onUnmounted(() => {
  // 组件销毁后解绑事件
  window.onresize = null
})