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- API 路由统一: 移除 /api/h5/，统一 /api/pms/ 入口 - 二进制改名: api-server -> pms-api（与服务名一致） - nginx: 合并 /api/ + /pms/api/ 为 /api/pms/ - 新增 docs/API.md 接口文档 - 后端: CabinetDetail 增加 rssi/pow_fail/address/soc 等字段 - Redis 管道批量读取仓体实时数据（SOC/电压/电流/功率） - DB: 所有 TIMESTAMP 列改为 DATETIME（修复类型不匹配） - 用户管理: 新增创建时间/修改时间列，状态改用 Switch - 角色管理/用户管理: 操作按钮改为图标 - PC 设备详情: 基本信息补全 RSSI/ICCID/电源/地址 - PC 卡片: 通道统计改用 Lucide 图标，颜色统一 - PC 二维码: canvas 渲染，含编号文字，支持右键下载 - H5: 按 uni-app 规范修正导航（navigateTo 替代 reLaunch） - H5: 详情页加返回导航条 - H5: 扫码支持摄像头（jsQR）+ ?id= 参数 - H5: 底部 tabBar 在所有页面常显 - H5: 首页统计改为 6 项（设备/通道/空闲/充电/充满/故障） - H5: 下拉刷新 / 上拉加载 - 产品首页: 添加业务联系 - 文档: 清理过时文件，补充缺失规范章节
2.6 KiB
2.6 KiB
category
| category |
|---|
| Elements |
useIntersectionObserver
Detects that a target element's visibility.
Usage
<script setup lang="ts">
import { useIntersectionObserver } from '@vueuse/core'
import { shallowRef, useTemplateRef } from 'vue'
const target = useTemplateRef('target')
const targetIsVisible = shallowRef(false)
const { stop } = useIntersectionObserver(
target,
([entry], observerElement) => {
targetIsVisible.value = entry?.isIntersecting || false
},
)
</script>
<template>
<div ref="target">
<h1>Hello world</h1>
</div>
</template>
Directive Usage
<script setup lang="ts">
import { vIntersectionObserver } from '@vueuse/components'
import { shallowRef, useTemplateRef } from 'vue'
const root = useTemplateRef('root')
const isVisible = shallowRef(false)
function onIntersectionObserver([entry]: IntersectionObserverEntry[]) {
isVisible.value = entry?.isIntersecting || false
}
</script>
<template>
<div>
<p>
Scroll me down!
</p>
<div v-intersection-observer="onIntersectionObserver">
<p>Hello world!</p>
</div>
</div>
<!-- with options -->
<div ref="root">
<p>
Scroll me down!
</p>
<div v-intersection-observer="[onIntersectionObserver, { root }]">
<p>Hello world!</p>
</div>
</div>
</template>
Type Declarations
export interface UseIntersectionObserverOptions extends ConfigurableWindow {
/**
* Start the IntersectionObserver immediately on creation
*
* @default true
*/
immediate?: boolean
/**
* The Element or Document whose bounds are used as the bounding box when testing for intersection.
*/
root?: MaybeComputedElementRef | Document
/**
* A string which specifies a set of offsets to add to the root's bounding_box when calculating intersections.
*/
rootMargin?: string
/**
* Either a single number or an array of numbers between 0.0 and 1.
* @default 0
*/
threshold?: number | number[]
}
export interface UseIntersectionObserverReturn extends Pausable {
isSupported: ComputedRef<boolean>
stop: () => void
}
/**
* Detects that a target element's visibility.
*
* @see https://vueuse.org/useIntersectionObserver
* @param target
* @param callback
* @param options
*/
export declare function useIntersectionObserver(
target:
| MaybeComputedElementRef
| MaybeRefOrGetter<MaybeElement[]>
| MaybeComputedElementRef[],
callback: IntersectionObserverCallback,
options?: UseIntersectionObserverOptions,
): UseIntersectionObserverReturn