admin-govern/src/components/table/header/index.vue

<template>
    <div ref="tableHeader" class="cn-table-header">
        <div class="table-header ba-scroll-style">
            <el-form
                style="flex: 1; height: 32px; margin-right: 20px"
                ref="headerForm"
                @submit.prevent=""
                @keyup.enter="onComSearch"
                label-position="left"
                :inline="true"
            >
                <el-form-item label="区域" v-if="area">
                    <Area ref="areaRef" v-model="tableStore.table.params.deptIndex" />
                </el-form-item>
                <el-form-item label="日期" v-if="datePicker" style="grid-column: span 2; max-width: unset">
                    <DatePicker ref="datePickerRef"></DatePicker>
                </el-form-item>
                <slot name="select"></slot>
            </el-form>
            <template v-if="$slots.select || datePicker">
                <el-button type="primary" @click="showSelectChange" v-if="showUnfoldButton">
                    <Icon size="14" name="el-icon-ArrowUp" style="color: #fff" v-if="showSelect" />
                    <Icon size="14" name="el-icon-ArrowDown" style="color: #fff" v-else />
                </el-button>
                <el-button @click="onComSearch" v-if="showSearch" type="primary" :icon="Search">查询</el-button>
                <el-button @click="onResetForm" v-if="showSearch" :icon="RefreshLeft">重置</el-button>
            </template>
            <slot name="operation"></slot>
        </div>
        <el-form
            :style="showSelect && showUnfoldButton ? headerFormSecondStyleOpen : headerFormSecondStyleClose"
            ref="headerFormSecond"
            @submit.prevent=""
            @keyup.enter="onComSearch"
            label-position="left"
            :inline="true"
        ></el-form>
    </div>
</template>

<script setup lang="ts">
import { inject, ref, onMounted, nextTick, onUnmounted } from 'vue'
import type TableStore from '@/utils/tableStore'
import DatePicker from '@/components/form/datePicker/index.vue'
import Area from '@/components/form/area/index.vue'
import { mainHeight } from '@/utils/layout'
import { useDictData } from '@/stores/dictData'
import { Search, RefreshLeft } from '@element-plus/icons-vue'

const tableStore = inject('tableStore') as TableStore
const tableHeader = ref()
const datePickerRef = ref()
const dictData = useDictData()
const areaRef = ref()
const headerForm = ref()
const headerFormSecond = ref()

interface Props {
    datePicker?: boolean
    area?: boolean
    showSearch?: boolean
}

const props = withDefaults(defineProps<Props>(), {
    datePicker: false,
    area: false,
    showSearch: true
})
// 动态计算table高度
const resizeObserver = new ResizeObserver(entries => {
    for (const entry of entries) {
        handlerHeight()
        computedSearchRow()
    }
})
const showUnfoldButton = ref(false)
const headerFormSecondStyleOpen = {
    opacity: 1,
    height: 'auto',
    padding: '0 15px 13px 15px'
}
const headerFormSecondStyleClose = {
    opacity: 0,
    height: '0',
    padding: '0'
}
onMounted(() => {
    if (props.datePicker) {
        tableStore.table.params.searchBeginTime = datePickerRef.value.timeValue[0]
        tableStore.table.params.searchEndTime = datePickerRef.value.timeValue[1]
        tableStore.table.params.startTime = datePickerRef.value.timeValue[0]
        tableStore.table.params.endTime = datePickerRef.value.timeValue[1]
        tableStore.table.params.timeFlag = datePickerRef.value.timeFlag
    }
    if (props.area) {
        tableStore.table.params.deptIndex = dictData.state.area[0].id
    }
    nextTick(() => {
        resizeObserver.observe(tableHeader.value)
        computedSearchRow()
    })
})
onUnmounted(() => {
    resizeObserver.disconnect()
})

const handlerHeight = () => {
    tableStore.table.height = mainHeight(
        tableStore.table.publicHeight + tableHeader.value.offsetHeight + (tableStore.showPage ? 58 : 0) + 20
    ).height as string
}
const computedSearchRow = () => {
    if (!headerForm.value.$el) return

    // 清空headerFormSecond.value.$el下的元素
    while (headerFormSecond.value.$el.firstChild) {
        headerForm.value.$el.appendChild(headerFormSecond.value.$el.firstChild)
    }

    // 获取第一行放了几个表单
    const elFormItem = headerForm.value.$el.querySelectorAll('.el-form-item')
    //  把第一行放不下的复制一份放到headerFormSecond.value.$el
    let width = 0
    for (let i = 0; i < elFormItem.length; i++) {
        width += elFormItem[i].offsetWidth + 32
        if (width > headerForm.value.$el.offsetWidth) {
            headerFormSecond.value.$el.appendChild(elFormItem[i])
        }
    }

    // 判断是否需要折叠
    if (headerFormSecond.value.$el.scrollHeight > 0) {
        showUnfoldButton.value = true
    } else {
        showUnfoldButton.value = false
    }
}

const showSelect = ref(false)
const showSelectChange = () => {
    showSelect.value = !showSelect.value
}
const onComSearch = async () => {
    if (props.datePicker) {
        tableStore.table.params.searchBeginTime = datePickerRef.value.timeValue[0]
        tableStore.table.params.searchEndTime = datePickerRef.value.timeValue[1]
        tableStore.table.params.startTime = datePickerRef.value.timeValue[0]
        tableStore.table.params.endTime = datePickerRef.value.timeValue[1]
        tableStore.table.params.timeFlag = datePickerRef.value.timeFlag
    }

    await tableStore.onTableAction('search', {})
}
const onResetForm = () => {
    tableStore.onTableAction('reset', {})
}
const setDatePicker = (list: any) => {
    datePickerRef.value.setTimeOptions(list)
}
const setInterval = (val: any) => {
    datePickerRef.value.setInterval(val)
}

defineExpose({ onComSearch, areaRef, setDatePicker, setInterval, datePickerRef })
</script>

<style scoped lang="scss">
.cn-table-header {
    border: 1px solid var(--el-border-color);
}
.table-header {
    position: relative;
    overflow-x: auto;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    width: 100%;
    max-width: 100%;
    background-color: var(--ba-bg-color-overlay);

    border-bottom: none;
    padding: 13px 15px;
    font-size: 14px;

    .table-header-operate-text {
        margin-left: 6px;
    }
}

.table-com-search {
    box-sizing: border-box;
    width: 100%;
    max-width: 100%;
    background-color: var(--ba-bg-color-overlay);
    border: 1px solid var(--ba-border-color);
    border-bottom: none;
    padding: 13px 15px 20px 15px;
    font-size: 14px;
}

#header-form-second,
#header-form {
    // display: flex;
    // flex-wrap: wrap;
    transition: all 0.3s;
}

.mlr-12 {
    margin-left: 12px;
}

.mlr-12 + .el-button {
    margin-left: 12px;
}

.table-search {
    display: flex;
    margin-left: auto;

    .quick-search {
        width: auto;
    }
}

.table-search-button-group {
    display: flex;
    margin-left: 12px;
    border: 1px solid var(--el-border-color);
    border-radius: var(--el-border-radius-base);
    overflow: hidden;

    button:focus,
    button:active {
        background-color: var(--ba-bg-color-overlay);
    }

    button:hover {
        background-color: var(--el-color-info-light-7);
    }

    .table-search-button-item {
        height: 30px;
        border: none;
        border-radius: 0;
    }

    .el-button + .el-button {
        margin: 0;
    }

    .right-border {
        border-right: 1px solid var(--el-border-color);
    }
}

html.dark {
    .table-search-button-group {
        button:focus,
        button:active {
            background-color: var(--el-color-info-dark-2);
        }

        button:hover {
            background-color: var(--el-color-info-light-7);
        }

        button {
            background-color: var(--ba-bg-color-overlay);

            el-icon {
                color: white !important;
            }
        }
    }
}
#header-form,
#header-form-second {
    :deep(.el-select) {
        --el-select-width: 220px;
    }
    :deep(.el-input) {
        --el-input-width: 220px;
    }
}
</style>