<template>
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<table cellspacing="0" cellpadding="0" border="0" :style="styles">
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<colgroup>
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<col v-for="(column, index) in columns" :width="setCellWidth(column)">
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<col v-if="$parent.showVerticalScrollBar" :width="$parent.scrollBarWidth"/>
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</colgroup>
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<thead>
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<tr v-for="(cols, rowIndex) in headRows">
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<th
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v-for="(column, index) in cols"
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:colspan="column.colSpan"
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:rowspan="column.rowSpan"
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:class="alignCls(column)">
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<div :class="cellClasses(column)">
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<template v-if="column.type === 'expand'">
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<span v-if="!column.renderHeader">{{ column.title || '' }}</span>
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<render-header v-else :render="column.renderHeader" :column="column" :index="index"></render-header>
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</template>
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<template v-else-if="column.type === 'selection'"><Checkbox v-if="!column.hideSelectAll" :value="isSelectAll" :disabled="isSelectDisabled" @on-change="selectAll"></Checkbox></template>
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<template v-else>
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<span v-if="!column.renderHeader" :class="{[prefixCls + '-cell-sort']: column.sortable}" @click="column.sortable && handleSortByHead(getColumn(rowIndex, index)._index)">{{ column.title || '#' }}</span>
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<render-header v-else :render="column.renderHeader" :column="column" :index="index"></render-header>
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<span :class="[prefixCls + '-sort']" v-if="column.sortable">
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<i class="ivu-icon ivu-icon-md-arrow-dropup" :class="{on: getColumn(rowIndex, index)._sortType === 'asc'}" @click="handleSort(getColumn(rowIndex, index)._index, 'asc')"></i>
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<i class="ivu-icon ivu-icon-md-arrow-dropdown" :class="{on: getColumn(rowIndex, index)._sortType === 'desc'}" @click="handleSort(getColumn(rowIndex, index)._index, 'desc')"></i>
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</span>
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<Poptip
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v-if="isPopperShow(column)"
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v-model="getColumn(rowIndex, index)._filterVisible"
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placement="bottom"
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popper-class="ivu-table-popper"
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transfer
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:capture="false"
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@on-popper-hide="handleFilterHide(getColumn(rowIndex, index)._index)">
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<span :class="[prefixCls + '-filter']">
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<i class="ivu-icon ivu-icon-ios-funnel" :class="{on: getColumn(rowIndex, index)._isFiltered}"></i>
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</span>
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<div slot="content" :class="[prefixCls + '-filter-list']" v-if="getColumn(rowIndex, index)._filterMultiple">
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<div :class="[prefixCls + '-filter-list-item']">
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<checkbox-group v-model="getColumn(rowIndex, index)._filterChecked">
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<checkbox v-for="(item, index) in column.filters" :key="index" :label="item.value">{{ item.label }}</checkbox>
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</checkbox-group>
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</div>
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<div :class="[prefixCls + '-filter-footer']">
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<i-button type="text" size="small" :disabled="!getColumn(rowIndex, index)._filterChecked.length" @click.native="handleFilter(getColumn(rowIndex, index)._index)">{{ t('i.table.confirmFilter') }}</i-button>
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<i-button type="text" size="small" @click.native="handleReset(getColumn(rowIndex, index)._index)">{{ t('i.table.resetFilter') }}</i-button>
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</div>
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</div>
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<div slot="content" :class="[prefixCls + '-filter-list']" v-else>
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<ul :class="[prefixCls + '-filter-list-single']">
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<li
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:class="itemAllClasses(getColumn(rowIndex, index))"
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@click="handleReset(getColumn(rowIndex, index)._index)">{{ t('i.table.clearFilter') }}</li>
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<li
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:class="itemClasses(getColumn(rowIndex, index), item)"
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v-for="item in column.filters"
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@click="handleSelect(getColumn(rowIndex, index)._index, item.value)">{{ item.label }}</li>
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</ul>
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</div>
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</Poptip>
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</template>
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</div>
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<div
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v-if="column.resizable"
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class="ivu-table-header-resizable"
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@mousedown="handleMouseDown(column, $event)"
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@mousemove="handleMouseMove(column, $event)"
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@mouseout="handleMouseOut"
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></div>
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</th>
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<th v-if="$parent.showVerticalScrollBar && rowIndex===0" :class='scrollBarCellClass()' :rowspan="headRows.length"></th>
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</tr>
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</thead>
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</table>
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</template>
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<script>
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import CheckboxGroup from '../checkbox/checkbox-group.vue';
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import Checkbox from '../checkbox/checkbox.vue';
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import Poptip from '../poptip/poptip.vue';
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import iButton from '../button/button.vue';
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import renderHeader from './header';
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import Mixin from './mixin';
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import Locale from '../../mixins/locale';
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export default {
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name: 'TableHead',
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mixins: [ Mixin, Locale ],
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components: { CheckboxGroup, Checkbox, Poptip, iButton, renderHeader },
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props: {
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prefixCls: String,
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styleObject: Object,
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columns: Array,
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objData: Object,
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data: Array, // rebuildData
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columnsWidth: Object,
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fixed: {
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type: [Boolean, String],
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default: false
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},
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columnRows: Array,
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fixedColumnRows: Array
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},
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data () {
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return {
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draggingColumn: null,
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dragging: false,
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dragState: {}
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};
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},
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computed: {
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styles () {
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const style = Object.assign({}, this.styleObject);
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const width = parseInt(this.styleObject.width) ;
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style.width = `${width}px`;
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return style;
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},
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isSelectAll () {
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let isSelectAll = true;
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if (!this.data.length) isSelectAll = false;
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// 全部disabled且全false，#1751
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let isAllDisabledAndUnSelected = true;
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for (let i in this.objData) {
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const objData = this.objData[i];
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if (!objData._isChecked && !objData._isDisabled) {
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isSelectAll = false;
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break;
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} else if (objData.children && objData.children.length) {
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isSelectAll = this.isChildrenSelected(objData, isSelectAll);
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}
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if (!(objData._isDisabled && !objData._isChecked)) {
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isAllDisabledAndUnSelected = false;
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} else if (objData.children && objData.children.length) {
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isAllDisabledAndUnSelected = this.isChildrenAllDisabledAndUnSelected(objData, isAllDisabledAndUnSelected);
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}
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}
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if (isAllDisabledAndUnSelected) isSelectAll = false;
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return isSelectAll;
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},
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headRows () {
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const isGroup = this.columnRows.length > 1;
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if (isGroup) {
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return this.fixed ? this.fixedColumnRows : this.columnRows;
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} else {
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return [this.columns];
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}
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},
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isSelectDisabled () {
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let isSelectDisabled = true;
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if (this.data.length) {
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for (let i in this.objData) {
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const objData = this.objData[i];
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if (!objData._isDisabled) {
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isSelectDisabled = false;
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} else if (objData.children && objData.children.length) {
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isSelectDisabled = this.isChildrenDisabled(objData, isSelectDisabled);
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}
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}
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}
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return isSelectDisabled;
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}
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},
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methods: {
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cellClasses (column) {
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return [
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`${this.prefixCls}-cell`,
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{
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[`${this.prefixCls}-hidden`]: !this.fixed && column.fixed && (column.fixed === 'left' || column.fixed === 'right'),
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[`${this.prefixCls}-cell-with-selection`]: column.type === 'selection'
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}
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];
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},
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scrollBarCellClass(){
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let hasRightFixed = false;
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for(let i in this.headRows){
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for(let j in this.headRows[i]){
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if(this.headRows[i][j].fixed === 'right') {
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hasRightFixed=true;
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break;
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}
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if(hasRightFixed) break;
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}
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}
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return [
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{
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[`${this.prefixCls}-hidden`]: hasRightFixed
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}
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];
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},
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itemClasses (column, item) {
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return [
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`${this.prefixCls}-filter-select-item`,
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{
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[`${this.prefixCls}-filter-select-item-selected`]: column._filterChecked[0] === item.value
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}
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];
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},
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itemAllClasses (column) {
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return [
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`${this.prefixCls}-filter-select-item`,
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{
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[`${this.prefixCls}-filter-select-item-selected`]: !column._filterChecked.length
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}
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];
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},
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selectAll () {
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const status = !this.isSelectAll;
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this.$parent.selectAll(status);
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},
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handleSort (index, type) {
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// 在固定列时，寻找正确的 index #5580
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const column = this.columns.find(item => item._index === index);
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const _index = column._index;
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if (column._sortType === type) {
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type = 'normal';
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}
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this.$parent.handleSort(_index, type);
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},
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handleSortByHead (index) {
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// 在固定列时，寻找正确的 index #5580
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const column = this.columns.find(item => item._index === index);
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if (column.sortable) {
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const type = column._sortType;
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if (type === 'normal') {
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this.handleSort(index, 'asc');
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} else if (type === 'asc') {
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this.handleSort(index, 'desc');
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} else {
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this.handleSort(index, 'normal');
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}
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}
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},
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handleFilter (index) {
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this.$parent.handleFilter(index);
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},
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handleSelect (index, value) {
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this.$parent.handleFilterSelect(index, value);
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},
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handleReset (index) {
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this.$parent.handleFilterReset(index);
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},
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handleFilterHide (index) {
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this.$parent.handleFilterHide(index);
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},
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// 因为表头嵌套不是深拷贝，所以没有 _ 开头的方法，在 isGroup 下用此列
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getColumn (rowIndex, index) {
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const isGroup = this.columnRows.length > 1;
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if (isGroup) {
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const id = this.headRows[rowIndex][index].__id;
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return this.columns.filter(item => item.__id === id)[0];
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} else {
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return this.headRows[rowIndex][index];
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}
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},
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handleMouseDown (column, event) {
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if (this.$isServer) return;
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if (this.draggingColumn) {
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this.dragging = true;
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const table = this.$parent;
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const tableEl = table.$el;
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const tableLeft = tableEl.getBoundingClientRect().left;
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const columnEl = this.$el.querySelector(`th.ivu-table-column-${column.__id}`);
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const columnRect = columnEl.getBoundingClientRect();
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const minLeft = columnRect.left - tableLeft + 30;
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table.showResizeLine = true;
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this.dragState = {
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startMouseLeft: event.clientX,
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startLeft: columnRect.right - tableLeft,
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startColumnLeft: columnRect.left - tableLeft,
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tableLeft
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};
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const resizeProxy = table.$refs.resizeLine;
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resizeProxy.style.left = this.dragState.startLeft + 'px';
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document.onselectstart = function() { return false; };
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document.ondragstart = function() { return false; };
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const handleMouseMove = (event) => {
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const deltaLeft = event.clientX - this.dragState.startMouseLeft;
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const proxyLeft = this.dragState.startLeft + deltaLeft;
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resizeProxy.style.left = Math.max(minLeft, proxyLeft) + 'px';
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};
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const handleMouseUp = () => {
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if (this.dragging) {
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const {
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startColumnLeft,
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startLeft
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} = this.dragState;
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const finalLeft = parseInt(resizeProxy.style.left, 10);
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const columnWidth = finalLeft - startColumnLeft;
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const _column = table.columns.find(item => item.__id === column.__id);
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if (_column) _column.width = columnWidth;
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table.$emit('on-column-width-resize', _column.width, startLeft - startColumnLeft, column, event);
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document.body.style.cursor = '';
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this.dragging = false;
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this.draggingColumn = null;
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this.dragState = {};
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table.showResizeLine = false;
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}
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document.removeEventListener('mousemove', handleMouseMove);
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document.removeEventListener('mouseup', handleMouseUp);
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document.onselectstart = null;
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document.ondragstart = null;
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};
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document.addEventListener('mousemove', handleMouseMove);
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document.addEventListener('mouseup', handleMouseUp);
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}
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},
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handleMouseMove (column, event) {
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let target = event.target;
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while (target && target.tagName !== 'TH') {
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target = target.parentNode;
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}
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if (!column || !column.resizable) return;
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if (!this.dragging) {
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let rect = target.getBoundingClientRect();
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const bodyStyle = document.body.style;
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if (rect.width > 12 && rect.right - event.pageX < 8) {
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bodyStyle.cursor = 'col-resize';
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this.draggingColumn = column;
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} else if (!this.dragging) {
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bodyStyle.cursor = '';
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this.draggingColumn = null;
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}
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}
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},
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handleMouseOut () {
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if (this.$isServer) return;
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document.body.style.cursor = '';
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},
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isChildrenSelected (objData, isSelectAll) {
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let status = isSelectAll;
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if (objData.children && objData.children.length) {
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objData.children.forEach(row => {
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if (!row._isChecked && !row._isDisabled) {
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status = false;
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} else if (row.children && row.children.length) {
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status = this.isChildrenSelected(row, status);
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}
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});
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}
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return status;
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},
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isChildrenAllDisabledAndUnSelected (objData, isAllDisabledAndUnSelected) {
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let status = isAllDisabledAndUnSelected;
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if (objData.children && objData.children.length) {
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objData.children.forEach(row => {
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if (!(row._isDisabled && !row._isChecked)) {
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status = false;
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} else if (row.children && row.children.length) {
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status = this.isChildrenAllDisabledAndUnSelected(row, status);
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}
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});
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}
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return status;
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},
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isChildrenDisabled (objData, isSelectDisabled) {
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let status = isSelectDisabled;
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if (objData.children && objData.children.length) {
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objData.children.forEach(row => {
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if (!row._isDisabled) {
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status = false;
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} else if (row.children && row.children.length) {
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status = this.isChildrenDisabled(row, status);
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}
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});
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}
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return status;
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}
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}
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};
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</script>
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