228 lines
6.9 KiB
Vue
228 lines
6.9 KiB
Vue
<template>
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<div class="my-table-container">
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<!-- 扩展层：可后续统一添加（如加载动画、导出按钮等） -->
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<div v-if="loading" class="table-loading">
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<el-loading-spinner></el-loading-spinner>
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<p class="loading-text">{{ loadingText || "加载中..." }}</p>
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</div>
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<div class="el-table-container" ref="elTableWrapper" @mouseleave="handleTableLeave">
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<!-- 原生 Table 核心：透传 props/事件/插槽 -->
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<el-table :ref="tableRef" v-bind="$attrs" v-on="$listeners" :class="['my-table', customClass]"
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@cell-mouse-enter="handleCellEnter" @row-mouseleave="handleRowLeave">
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<!-- 2. 透传原生内置插槽（如 empty 空数据插槽、append 底部插槽等） -->
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<template v-slot:empty="scope">
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<slot name="empty" v-bind="scope"></slot>
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</template>
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<template v-slot:append="scope">
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<slot name="append" v-bind="scope"></slot>
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</template>
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<!-- 3. 透传“自定义列”插槽（直接接收<el-table-column> 嵌套的情况） -->
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<slot v-bind:tableRef="tableRef"></slot>
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<el-table-column v-if="selectionColumn" type="selection" width="55" align="center"></el-table-column>
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<el-table-column v-if="indexColumn" type="index" width="55" align="center"></el-table-column>
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</el-table>
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<!-- 浮层组件 -->
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<KLPTableFloatLayer v-if="floatLayer" :columns="floatLayerColumns" :data="hoveredRow" :tooltipVisible="tooltipVisible"
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:tooltipStyle="tooltipStyle" />
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</div>
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<!-- 扩展层：可后续统一添加分页（如与 MyPagination 组件联动） -->
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<slot name="pagination"></slot>
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</div>
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</template>
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<script>
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import ColumnRender from './ColumnRender.vue';
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import Eclipse from './renderer/eclipse.vue';
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import KLPTableFloatLayer from './FloatLayer/index.vue';
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export default {
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name: "KLPTable", // 组件名，便于调试和文档生成
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components: {
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ColumnRender,
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Eclipse,
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KLPTableFloatLayer
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},
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props: {
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// 1. 扩展 props：新增原生 Table 没有的属性（如加载状态）
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loading: {
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type: Boolean,
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default: false
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},
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loadingText: {
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type: String,
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default: "加载中..."
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},
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// 2. 兼容原生 class 用法（原生 el-table 支持 class 属性，此处显式接收避免 $attrs 冲突）
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customClass: {
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type: String,
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default: ""
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},
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selectionColumn: {
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type: Boolean,
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default: false
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},
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indexColumn: {
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type: Boolean,
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default: false
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},
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// floatLayer：是否显示浮层
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floatLayer: {
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type: Boolean,
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default: false
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},
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floatLayerConfig: {
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type: Object,
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default: () => ({
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columns: [],
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title: '详细信息'
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})
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}
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},
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data() {
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return {
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tableRef: "myTableRef", // 表格 ref，便于后续通过 ref 调用原生方法
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// 浮层相关
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tooltipVisible: false,
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tooltipStyle: {
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top: '0px',
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left: '0px'
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},
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hoveredRow: null,
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columns: []
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};
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},
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computed: {
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floatLayerColumns() {
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console.log(this.floatLayerConfig?.columns?.length > 1)
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if (this.floatLayerConfig?.columns?.length > 1) {
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return this.floatLayerConfig.columns
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}
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return this.columns;
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}
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},
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methods: {
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// 核心方法：净化scope，移除可能导致循环引用的属性
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sanitizeScope(scope) {
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if (!scope) return {};
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// 只保留安全的属性（根据实际需求调整）
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const { row, column, $index, store } = scope;
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// 深拷贝避免引用传递，同时过滤循环引用
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return this.deepClone({ row, column, $index, store });
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},
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// 安全的深拷贝方法（避免JSON.parse/stringify无法处理的类型）
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deepClone(obj) {
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if (obj === null || typeof obj !== "object") return obj;
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if (obj instanceof Date) return new Date(obj);
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if (obj instanceof RegExp) return new RegExp(obj);
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// 避免处理Vue实例（通常带有循环引用）
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if (obj._isVue) return { _isVue: true };
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const clone = Array.isArray(obj) ? [] : {};
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for (const key in obj) {
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if (obj.hasOwnProperty(key)) {
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clone[key] = this.deepClone(obj[key]);
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}
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}
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return clone;
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},
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// 3. 透传原生 Table 实例方法（如 clearSelection、doLayout 等）
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// 业务层可通过 this.$refs.myTable.xxx() 调用原生方法
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getTableInstance() {
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return this.$refs[this.tableRef];
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},
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// 示例：透传原生 clearSelection 方法
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clearSelection() {
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const table = this.getTableInstance();
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if (table && table.clearSelection) {
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table.clearSelection();
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}
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},
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// 可根据需要扩展更多原生方法（如 toggleRowSelection、sort 等）
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toggleRowSelection(row, selected) {
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const table = this.getTableInstance();
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if (table && table.toggleRowSelection) {
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table.toggleRowSelection(row, selected);
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}
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},
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// 浮层相关
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handleCellEnter(row, column, cell, event) {
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if (!row || !event) return
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this.hoveredRow = row
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this.tooltipVisible = true
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this.updateTooltipPosition(event)
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},
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handleRowLeave() {
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this.tooltipVisible = false
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this.hoveredRow = null
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},
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handleTableLeave() {
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this.tooltipVisible = false
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this.hoveredRow = null
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},
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updateTooltipPosition(event) {
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this.$nextTick(() => {
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const wrapper = this.$refs.elTableWrapper
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if (!wrapper) return
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const wrapperRect = wrapper.getBoundingClientRect()
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let left = event.clientX - wrapperRect.left + 16
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let top = event.clientY - wrapperRect.top + 12
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this.tooltipStyle = {
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top: `${top}px`,
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left: `${left}px`
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}
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})
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},
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},
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mounted() {
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// 扩展点：后续可统一添加初始化逻辑（如权限控制、默认排序等）
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// console.log("MyTable 初始化完成，原生实例：", this.getTableInstance());
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// 几个特殊的列，需要特殊处理 index, selection, action
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const columns = this.$slots.default.filter(item => item.tag?.includes('ElTableColumn') && item.componentInstance && item.componentInstance.columnConfig && item.componentOptions && item.componentOptions.propsData).map(item => ({
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...item.componentInstance.columnConfig,
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...item.componentOptions.propsData
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}))
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this.columns = columns
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}
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};
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</script>
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<style scoped>
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.my-table-container {
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width: 100%;
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position: relative;
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}
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/* 扩展样式：加载状态遮罩（后续可统一调整） */
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.table-loading {
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position: absolute;
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top: 0;
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left: 0;
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right: 0;
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bottom: 0;
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background: rgba(255, 255, 255, 0.8);
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display: flex;
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flex-direction: column;
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justify-content: center;
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align-items: center;
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z-index: 10;
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}
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.loading-text {
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margin-top: 12px;
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color: #666;
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font-size: 14px;
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}
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/* 原生 Table 样式兼容：避免封装层影响原生样式 */
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.my-table {
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width: 100%;
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}
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</style> |