table.vue
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<template>
<div :class="classes">
<div :class="[prefixCls + '-body']">
<table>
<colgroup>
<col v-for="column in columns" :width="column.width">
</colgroup>
<thead
is="table-head"
:prefix-cls="prefixCls + '-thead'"
:columns="columns"></thead>
<tbody :class="[prefixCls + '-tbody']" v-el:render>
<tr :class="[prefixCls + '-row']" v-for="(index, row) in data">
<td v-for="column in columns">{{{ renderRow(row, column) }}}</td>
</tr>
</tbody>
</table>
</div>
</div>
</template>
<script>
import TableHead from './table-head.vue';
import { oneOf } from '../../utils/assist';
const prefixCls = 'ivu-table';
export default {
components: { TableHead },
props: {
data: {
type: Array,
default () {
return []
}
},
columns: {
type: Array,
default () {
return []
}
},
size: {
validator (value) {
return oneOf(value, ['small', 'large']);
}
},
stripe: {
type: Boolean,
default: false
},
border: {
type: Boolean,
default: false
},
fit: {
type: Boolean,
default: true
},
showHeader: {
type: Boolean,
default: true
},
selection: {
validator (value) {
return oneOf(value, ['single', 'multiple', false]);
},
default: false
},
showIndex: {
type: Boolean,
default: false
}
},
data () {
return {
prefixCls: prefixCls,
compiledUids: []
}
},
computed: {
classes () {
return [
`${prefixCls}`,
{
[`${prefixCls}-${this.size}`]: !!this.size
}
]
}
},
methods: {
renderRow (row, column) {
return 'render' in column ? '' : row[column.key];
},
compileRender (update = false) {
this.$nextTick(() => {
if (update) {
for (let i = 0; i < this.$parent.$children.length; i++) {
const index = this.compiledUids.indexOf(this.$parent.$children[i]._uid);
if (index > -1) {
this.$parent.$children[i].$destroy();
this.compiledUids.splice(index, 1);
i--;
}
}
}
const $el = this.$els.render;
for (let i = 0; i < this.columns.length; i++) {
const column = this.columns[i];
if (column.render) {
for (let j = 0; j < this.data.length; j++) {
// todo 做一个深度缓存，只在需要改render时再重新编译，否则data改变时不用再编译
const row = this.data[j];
const template = column.render(row, column, j);
const cell = document.createElement('div');
cell.innerHTML = template;
const _oldParentChildLen = this.$parent.$children.length;
this.$parent.$compile(cell);
const _newParentChildLen = this.$parent.$children.length;
if (_oldParentChildLen !== _newParentChildLen) { // if render normal html node, do not tag
this.compiledUids.push(this.$parent.$children[this.$parent.$children.length - 1]._uid); // tag it, and delete when data or columns update
}
$el.children[j].children[i].innerHTML = '';
$el.children[j].children[i].appendChild(cell);
}
}
}
});
}
},
ready () {
this.compileRender();
},
watch: {
data: {
handler () {
this.compileRender(true);
},
deep: true
},
columns: {
handler () {
this.compileRender(true);
},
deep: true
}
}
}
</script>