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<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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<!-- 原生 Table 核心:透传 props/事件/插槽 -->
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<el-table
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:ref="tableRef"
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v-bind="$attrs"
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v-on="$listeners"
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:class="['my-table', customClass]"
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>
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<!-- 1. 透传“列定义插槽”(原生 columns 中通过 slot 自定义的表头/单元格) -->
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<template
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v-for="(column, index) in $attrs.columns || []"
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v-slot:[`header-${column.prop}`]="scope"
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>
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<!-- 调用业务层定义的表头插槽 -->
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<slot :name="`header-${column.prop}`" v-bind="scope"></slot>
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</template>
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<template
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v-for="(column, index) in $attrs.columns || []"
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v-slot:[column.prop]="scope"
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>
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<!-- 调用业务层定义的单元格插槽 -->
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<slot :name="column.prop" v-bind="scope"></slot>
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</template>
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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(业务层直接用 <el-table-column> 嵌套的情况) -->
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<slot v-bind:tableRef="tableRef"></slot>
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</el-table>
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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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export default {
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name: "KLPTable", // 组件名,便于调试和文档生成
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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 $attrs 冲突)
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customClass: {
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type: String,
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default: ""
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}
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},
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data() {
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return {
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tableRef: "myTableRef" // 表格 ref,便于后续通过 ref 调用原生方法
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};
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},
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methods: {
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// 3. 透传原生 Table 实例方法(如 clearSelection、doLayout 等)
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// 业务层可通过 this.$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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},
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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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}
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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>
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