vue3-el-table-sticky-plugin
> 一个让 element-plus el-table 表头部吸顶的vue3插件
节点中设置的 top 值是基于 body 进行设置的因为业务场景不一样,所有节点唯一的共同点就是 body。
npm i vue3-el-table-sticky-plugin -S
1. parent 滚动容器,默认为body。(参数优先级 指令使用处 > 指令注册处 > 插件兜底(body节点))
2. top 可选参数 (参数优先级 指令使用处 > 指令注册处 > 插件兜底(基于当前table-header距离body的top值))
3. willBeChangeElementClasses 可选参数 (参数优先级 指令使用处 > 指令注册处
4. 实际使用情况还会更复杂 本插件只是在理想状态下面做的封装 如有不足还请指出
// main.ts
import { createApp } from 'vue';
import App from './App.vue';
import Vue3TableStickyPlugin from 'vue3-el-table-sticky-plugin';
const app = createApp(App);
// 注入全局指令
app.use(Vue3TableStickyPlugin);
app.mount('#app');
<!-- xxx.vue -->
<template>
<el-container class="layout-main">
<el-header>头部导航栏</el-header>
<el-container class="layout-body">
<el-aside class="layout-aside"> 左侧菜单栏 </el-aside>
<el-main class="layout-page">
<el-main class="page-content">
<!-- 因为这个只是开发测试demo 所以就写在一个文件里面 就行本人喜欢将固定的滚动写在layout布局里面 极端场景会将滚动写在具体的业务 .vue文件的根节点上 -->
<!-- 业务 .vue文件的根节点 -->
<div class="not-layout-page">
<el-form inline class="table-top-dom">
<el-form-item
:label="formItem.label"
v-for="formItem in elFormItemsState.elFormItems"
>
<el-input placeholder="Approved by" />
</el-form-item>
</el-form>
<el-table
class="el-table-sticky"
v-sticky="{
top: stickyTopValue,
parent: '.not-layout-page',
willBeChangeElementClasses: ['.table-top-dom'],
}"
:data="tableDataState.tableData"
:header-cell-style="{ background: 'rgb(0, 0, 255)' }"
border
style="100%"
>
<el-table-column fixed="left" prop="date" label="Date" width="150"></el-table-column>
<el-table-column fixed="left" prop="name" label="Name" width="250" />
<el-table-column prop="state" label="State" width="250" />
<el-table-column prop="city" label="City" width="250" />
<el-table-column prop="address" label="Address" width="620" />
<el-table-column fixed="right" prop="zip" label="Zip" width="120" />
<el-table-column fixed="right" label="操作" width="180">
<template #default>
<el-button link type="primary" size="small" @click="handleAddFormItems(1)">
给表单添加一条数据
</el-button>
</template>
</el-table-column>
</el-table>
</div>
</el-main>
</el-main>
</el-container>
</el-container>
</template>
<script lang="ts" setup>
import { app } from './App';
const { stickyTopValue, elFormItemsState, tableDataState, handleAddFormItems } = app();
</script>
<style lang="less" scoped>
.layout-main {
height: 100%;
width: 100%;
display: flex;
flex-direction: column;
flex: 1;
flex-basis: auto;
box-sizing: border-box;
.el-header {
background-color: rgb(0, 21, 41);
color: #fff;
font-size: 16px;
font-family: 'Courier New', Courier, monospace;
font-weight: 600;
text-align: center;
line-height: 60px;
}
.layout-body {
display: flex;
overflow: hidden;
.layout-aside {
width: 200px;
background-color: rgb(0, 21, 41);
transition: all 0.4s ease 0s;
color: #fff;
font-size: 16px;
font-family: 'Courier New', Courier, monospace;
font-weight: 600;
text-align: center;
line-height: 60px;
}
.layout-page {
overflow: hidden;
--el-main-padding: 10px;
padding: var(--el-main-padding);
flex: 1;
display: flex;
flex-direction: column;
.page-content {
padding: 0;
overflow-y: auto;
flex: 1;
width: 100%;
.not-layout-page {
height: 100%;
overflow-y: auto;
}
.table-top-dom {
box-sizing: border-box;
padding: 10px;
width: 50%;
background-color: #fcc630;
// overflow-anchor: none;
:deep(.el-form-item__label) {
color: #002ea6;
font-weight: 600;
font-family: 'MONACO';
}
}
}
.page-footer {
width: 100%;
// background-color: #ccc;
padding: 0.5em 10px;
border-top: 1px dashed #ccc;
border-bottom: 1px dashed #ccc;
}
}
}
}
</style>
// app.ts
import { onMounted, reactive, ref } from 'vue';
export const app = function () {
const stickyTopValue = ref<number>(0);
const elFormItemsState = reactive<{
elFormItems: Array<{ label: string }>;
}>({
elFormItems: [],
});
const tableDataState = reactive<{
tableData: Array<{
date: string;
name: string;
state: string;
city: string;
address: string;
zip: string;
tag: string;
}>;
}>({
tableData: [],
});
// 模拟数据
for (let index = 0; index < 49; index++) {
tableDataState.tableData.push({
date: '2016-05-03',
name: 'Tom',
state: 'California',
city: 'Los Angeles',
address: 'No. 189, Grove St, Los Angeles',
zip: 'CA 90036',
tag: 'Home',
});
}
tableDataState.tableData.unshift({
date: '第一条数据',
name: '第一条数据',
state: '第一条数据',
city: '第一条数据',
address: '第一条数据',
zip: '第一条数据',
tag: '第一条数据',
});
const handleAddFormItems = (formItemCount: number) => {
for (let index = 0; index < formItemCount; index++) {
elFormItemsState.elFormItems.push({ label: 'test-label' });
}
};
const handleAddTableData = () => {
tableDataState.tableData.push({
date: '添加的数据',
name: '添加的数据',
state: '添加的数据',
city: '添加的数据',
address: '添加的数据',
zip: '添加的数据',
tag: '添加的数据',
});
};
onMounted(() => {
// 监听节点class 为 table-top-dom 的高度变化
const tableTopDom = document.querySelector('.table-top-dom');
const tableElementResizeObserver = new ResizeObserver((entries) => {
for (const entry of entries) {
const targetElement = entry.target as HTMLDivElement;
stickyTopValue.value = targetElement.getBoundingClientRect().top;
}
});
tableTopDom && tableElementResizeObserver.observe(tableTopDom);
handleAddFormItems(3);
});
return {
stickyTopValue,
elFormItemsState,
tableDataState,
handleAddTableData,
handleAddFormItems,
};
};
参数 | 说明 | 类型 | 默认值 |
---|---|---|---|
top | 吸顶的时候 距离顶部多少距离,可以不用传递 | number | 不传递的话就是 按照当前距离固定 |
parent | 当前页面滚动的节点,如果是 document.body 可以不用传递 | string | body |
willBeChangeElementClasses | 会影响 tableHeader 到 body 顶部距离的 dom 节点(tableHeader 和 body 顶部之间高度会发生变化的 dom 节点,一般没有,动态表格、动态表单会存在这种情况) | string[] | [] |