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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 | 7x 7x 7x | <template> <div v-show="false"> <div v-if="false"> <slot name="title"></slot> <slot name="cell"></slot> <slot name="expand-content"></slot> <slot></slot> </div> </div> </template> <script> import MEmitter from '../m-emitter.vue'; import SupportDataSource from '../../mixins/support.datasource.js'; import UTableViewColumn from './column.vue'; import Vue from 'vue'; export default { name: 'u-table-view-column-dynamic', parentName: 'u-table-view', extends: UTableViewColumn, mixins: [MEmitter, SupportDataSource], watch: { 'currentDataSource.data'(value) { this.addVms(); }, dataSource(value) { this.$nextTick(() => { if (this.currentDataSource && this.currentDataSource.load) this.load(); }); }, }, created() { this.addVms(); }, destroyed() { this.$contact('u-table-view', (parentVM) => { parentVM.columnVMsMap[this._uid] = null; parentVM.dynamicColumnVMsMap[this._uid] = null; this.$dispatch( ($parent) => $parent.$options.name && $parent.$options.name === 'u-table-view', 'handle-columns', ); }); }, methods: { addVms() { // fix: 2825186155187968 动态列宽度拖动没有实时渲染 let vms = this.currentDataSource.data.map((item) => { const valueField = this.valueField; const _this = this; const copiedComponent = new Vue({ props: _this.$attrs, data() { return Object.assign({}, _this.$data, { columnItem: item, }); }, }); Object.keys(_this).forEach((key) => { if (key.startsWith('$') && key !== '$attrs' && key !== '$data') { Object.assign(copiedComponent, { [key]: _this[key] }); } }); Object.assign(copiedComponent, this._props, { field: this.$at(item, valueField), colSpan: 1, // 列合并还原为默认值 }); return copiedComponent; }); // 适配 IDE 展示 if (this.$env.VUE_APP_DESIGNER) { vms = [this]; } this.$contact('u-table-view', (parentVM) => { this.parentVM = parentVM; parentVM.columnVMsMap[this._uid] = { vnode: this.$vnode, columnVM: this, }; parentVM.dynamicColumnVMsMap[this._uid] = { columnVM: this, vms, }; this.$dispatch( ($parent) => $parent.$options.name && $parent.$options.name === 'u-table-view', 'handle-columns', ); }); }, reload() { // 数据源不是function的时候,调用reload会报错,进行容错处理 if (this.currentDataSource.load) this.load(); else if (this.currentDataSource.data) // valueField里的数据变化时,field需要重新生成 this.addVms(); }, }, }; </script> |