前置文章
一、vue使用element-ui自定义样式思路分享【实操】
二、vue3&ts&el-tabs多个tab表单校验
现状确认
- 点击添加按钮,没有点击样式,用户感知不明显
- 没有限制最大的tab添加数量,可以无限添加
调整目标&代码编写
调整目标
- 点击添加按钮,按钮背景变成蓝色,加号图标变成白色
- 限制最大的tab添加数量为
10
,超过10
添加按钮设置为灰色不可点击
代码编写
点击添加按钮,按钮背景变成蓝色
在vue使用element-ui自定义样式思路分享【实操】提到了如何给el-tabs按钮自定义样式,文本在按钮已经设置了自定义样式的基础上进行,首先实现点击按钮时,背景颜色变成蓝色,考虑使用伪类选择器active
来实现。
蓝色保持与element框架默认提供的一致,可以通过Snipaste来拾取:F1开启截屏,鼠标移动到蓝色区域,Shift切换颜色数据类型,按C完整复制。
代码调整如下
/*添加按钮点击显示蓝色*/
.asset-tab :deep(.el-tabs__new-tab):active {
background: #409eff;
}
效果
点击添加按钮,加号图标变成白色
观察svg的样式选择器,观察到通过fill
设置颜色不生效,修改color
颜色才生效,例如下图中设置为红色
添加代码
/*设置svg点击颜色显示白色*/
.asset-tab :deep(.el-tabs__new-tab):active .is-icon-plus svg {
color: white;
}
效果
js动态禁止按钮点击&设置按钮禁止样式
添加禁止样式(主要关注前面三行)
/*禁止样式*/
.asset-tab :deep(.el-tabs__new-tab.disabled) {
pointer-events: none;
opacity: 0.8;
background: lightgray;
height: 30px;
width: 30px;
border-radius: 15px;
font-size: 16px;
}
操作document动态添加或去除禁止样式,注意document.querySelector()
选择器不需要加:deep()
,并将修改逻辑抽取成方法setAddBtnStatus
,在增减tab逻辑后调用即可
const setAddBtnStatus = function () {
const newTab = document.querySelector('.asset-tab .el-tabs__new-tab')
console.log('newTab', newTab)
const index = tabs.value.length
if (index >= 10) {
newTab?.classList.add('disabled')
} else {
newTab?.classList.remove('disabled')
}
}
最终效果&完整代码
完整代码:
<!--AssetCreate.vue-->
<template>
<div style="margin-bottom: 10px">
<h3>数据源选择:</h3>
<el-switch v-model="isUseLocalFlag" active-text="使用本地服务数据" inactive-text="使用mock数据"/>
<el-button @click="setTabData" style="margin-left: 10px;">给tab赋值</el-button>
<el-button @click="clearTabData" >清空tab赋值</el-button>
</div>
<div class="asset-tab">
<el-tabs v-model="activeTab" type="card" editable class="demo-tabs" @edit="handleTabsEdit">
<el-tab-pane v-for="tab in tabs" :key="tab.name" :label="tab.label" :name="tab.name">
<AssetItem ref="assetItemRefs" :insertForm="tab.insertForm"/>
</el-tab-pane>
</el-tabs>
</div>
<div class="bottom-btn">
<el-button @click="submitAsset" type="primary">提交</el-button>
</div>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import axios from 'axios'
import type { TabPaneName } from 'element-plus'
import { removeRedundantFields } from '@/utils/methodUtil'
import AssetItem from '@/components/asset/AssetItem.vue'
import type { AssetFormData } from '@/types'
import { ElMessage } from 'element-plus'
// 当前激活的tab
const activeTab = ref('表单 1')
// tabs初始数据
const tabs = ref([
{ label: '表单 1', name: '表单 1', insertForm: {} }
])
const isUseLocalFlag = ref(true)
const clearTabData = function () {
tabs.value = [{ label: '表单 1', name: '表单 1', insertForm: {} }]
activeTab.value = '表单 1'
setAddBtnStatus()
}
const setTabData = async function () {
const bizId = '0777c40218114c35a29b0d4d84355668'
if (isUseLocalFlag.value) {
await axios.post(`/asset/assetInfo/${bizId}/byBizId`).then(result => {
if (result.status === 200) {
tabs.value = []
const assetInfoList = result?.data?.data?.assetInfoList
const removeResult = removeRedundantFields(assetInfoList, ['extAttribute11', 'extAttribute12',
'extAttribute13', 'extAttribute14', 'extAttribute15', 'extAttribute16', 'extAttribute17', 'extAttribute18',
'extAttribute19', 'extAttribute20'])
removeResult.forEach((item, index) => {
const newTabName = `表单 ${index + 1}`
tabs.value.push({
label: newTabName,
name: newTabName,
insertForm: item
})
setAddBtnStatus()
activeTab.value = newTabName
})
}
})
} else {
// 请求mock数据
await axios.post('/mock/asset/assetInfo', { bizId }).then(result => {
const assetInfoList: Array<AssetFormData> = result?.data?.data?.assetInfoList
tabs.value = []
assetInfoList.forEach((asset, idx) => {
const newTabName = `表单 ${idx + 1}`
tabs.value.push({
label: newTabName,
name: newTabName,
insertForm: asset
})
setAddBtnStatus()
activeTab.value = newTabName
})
})
}
}
const assetItemRefs = ref<InstanceType<typeof AssetItem>[]>([])
const handleTabsEdit = (
targetName: TabPaneName | undefined,
action: 'remove' | 'add'
) => {
if (action === 'add') {
let index = tabs.value.length
if (index >= 10) return
const newTabName = `表单 ${++index}`
tabs.value.push({
label: newTabName,
name: newTabName,
insertForm: {}
})
activeTab.value = newTabName
} else if (action === 'remove') {
const activeName = activeTab.value
if (tabs.value.length === 1) return
tabs.value = tabs.value.filter((tab) => tab.name !== targetName)
tabs.value.forEach((item, index) => {
item.name = `表单 ${++index}`
item.label = item.name
})
const currentExist = tabs.value.some((item, index) => {
if (item.name === activeName) {
return index
}
return false
})
if (!currentExist) activeTab.value = tabs.value[tabs.value.length - 1].name
}
setAddBtnStatus()
}
const setAddBtnStatus = function () {
const newTab = document.querySelector('.asset-tab .el-tabs__new-tab')
const index = tabs.value.length
if (index >= 10) {
newTab?.classList.add('disabled')
} else {
newTab?.classList.remove('disabled')
}
}
const verifyPass = ref(true)
const submitAsset = async function () {
for (const index in assetItemRefs.value) {
const verifyResult = await assetItemRefs.value[index].submitForm()
// 定位到第一个校验失败的tab
if (!verifyResult) {
verifyPass.value = false
activeTab.value = `表单 ${Number(index) + 1}`
break
} else {
verifyPass.value = true
}
}
if (verifyPass.value) ElMessage({ message: '表单校验通过', type: 'success' })
}
</script>
<style scoped>
/*禁止样式*/
.asset-tab :deep(.el-tabs__new-tab.disabled) {
pointer-events: none;
opacity: 0.8;
background: lightgray;
height: 30px;
width: 30px;
border-radius: 15px;
font-size: 16px;
}
.asset-tab :deep(.el-tabs__new-tab) {
height: 30px;
width: 30px;
border-radius: 15px;
font-size: 16px;
}
/*添加按钮点击显示蓝色*/
.asset-tab :deep(.el-tabs__new-tab):active {
background: #409eff;
}
/*设置svg点击颜色显示白色*/
.asset-tab :deep(.el-tabs__new-tab):active .is-icon-plus svg {
color: white;
}
.bottom-btn {
text-align: center;
margin-bottom: 10px;
}
</style>
代码仓:hello_vue3