hkyy/admin-frame/naf/data/filter-grid.vue

<template>
  <el-container class="container">
    <el-header height="auto" style="line-height:36px;" v-if="filter || action">
      <slot name="filter" v-if="filter">
        <filter-box ref="filter" :matcher="matcher" :fields="filterFields" @query="query" v-bind="filterProps">
          <template v-slot:ext="form" v-if="$scopedSlots['filter-ext']">
            <slot name="filter-ext" v-bind="form"></slot>
          </template>
        </filter-box>
      </slot>
      <slot name="action" v-if="action">
        <el-button icon="el-icon-plus" type="primary" size="mini" v-if="!readonly" @click="$emit('add-new')">添加</el-button>
      </slot>
    </el-header>
    <el-main class="table-area">
      <lite-grid
        :data="data"
        :meta="meta"
        :selection="selection"
        :options="options"
        :readonly="readonly"
        :operation="operation"
        :currentRow="currentRow"
        @oper="handleOper"
        @selection="$emit('selection', $event)"
        @dblclick="$emit('dblclick', $event)"
        @currentRow="$emit('row', $event)"
      >
        <template v-slot:pre>
          <slot name="pre"> </slot>
        </template>
        <slot> </slot>
        <template v-slot:oper>
          <slot name="oper"> </slot>
        </template>
        <template v-slot:oper_header>
          <slot name="oper_header"> </slot>
        </template>
        <template v-slot:ext>
          <slot name="ext"> </slot>
        </template>
        <template v-slot:post>
          <slot name="post"> </slot>
        </template>
      </lite-grid>
    </el-main>
    <el-footer height="36px" v-if="paging">
      <el-pagination
        background
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="page"
        :page-sizes="[10, 20, 50, 100, 200]"
        :page-size="size"
        :total="total"
        layout="total, sizes, prev, pager, next, jumper"
      ></el-pagination>
    </el-footer>
  </el-container>
</template>
<script>
import { FieldMeta } from './meta-util';
import LiteGrid from './lite-grid';
import FilterBox from './filter-box';

export default {
  name: 'filter-grid',
  components: {
    LiteGrid,
    FilterBox,
  },
  props: {
    meta: { type: Array, required: true },
    readonly: Boolean /* 是否显示操作列 */,
    filter: { type: Boolean, default: false } /* 是否显示查询 */,
    action: { type: Boolean, default: false } /* 是否显操作按钮 */,
    paging: { type: Boolean, default: false } /* 是否显示分页 */,
    selection: { type: Boolean, default: false } /* 是否显示多选 */,
    currentRow: { type: Boolean, default: false }, // 是否显示单行高亮
    options: {
      type: Object,
      default: () => ({ size: 'mini' }),
    } /* 表格扩展属性 */,
    operation: Array,
    data: Array,
    total: { type: Number, default: 0 } /* 总数据条数 */,
    pageSize: { type: Number, default: 10 },
    filterProps: { type: Object } /* filterBox属性 */,
    matcher: { type: String },
  },
  data() {
    return {
      page: 1,
      size: this.pageSize,
      currentFilter: {},
      // selectionList: [],
      disableQuery: false,
    };
  },
  methods: {
    async query({ filter } = {}) {
      this.currentFilter = filter;
      this.$emit('query', {
        filter,
        paging: { page: this.page, size: this.size },
      });
    },
    handleSizeChange(val) {
      this.size = val;
      if (this.total === 0) return;
      if (this.page > this.pages) this.page = this.pages;
      this.refresh();
    },
    handleCurrentChange(val) {
      this.page = val;
      // this.refresh(); 改为由watch触发refresh
    },
    async handleOper({ event, data }) {
      this.$emit(event, data);
    },
    resetPage(page = 1) {
      if (page == -1) {
        this.page = this.pages; // 跳到尾页
      } else {
        this.page = 1;
      }
    },
    refresh({ page } = {}) {
      this.page = page || this.page;
      return this.query({ filter: this.currentFilter });
    },
    reset() {
      this.disableQuery = true;
      this.resetPage();
      this.$refs.filter.reset();
      this.disableQuery = false;
    },
  },
  computed: {
    filterFields() {
      return this.meta
        .map(FieldMeta)
        .filter(p => p.slots.filter)
        .sort((a, b) => a.filterOpts.order - b.filterOpts.order || a.index - b.index);
    },
    pages() {
      if (this.total == 0) return 1;
      return Math.floor((this.total + this.size - 1) / this.size);
    },
  },
  watch: {
    total(val, old) {
      if (val > 0 && val <= this.page * this.size) {
        if (this.page > this.pages) {
          this.page = this.pages;
        }
      } else if (val == 0 && this.page > 1) {
        this.disableQuery = true;
        this.resetPage();
        this.disableQuery = false;
      }
    },
    page(val, old) {
      if (val != old && !this.disableQuery) {
        this.refresh();
      }
    },
    data() {
      if (this.data && this.page < this.pages && this.data.length < this.size) {
        this.refresh();
      }
    },
  },
};
</script>
<style lang="less" scoped>
.container {
  width: 100%;
  height: 100%;
  max-height: 90vh;
}
.el-table {
  height: 100%;
  overflow: auto;
}
.el-main {
  padding: 10px;
}
</style>